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Toshiba XVR16-120-X DVR User Manual

Contents

1. NOTES 1 UNLESS OTHERWISE NOTED ALL SWITCHES ARE SHOWN Bb a 12427 AMEN MORTON ace AND AFTER NORMAL SHUTDOWN HAS OCCURED 1 CONTROL PANEL DESIGNATION DESCRIPTION NUMBER DASHED LINES INDICATE RECOMMENDED FIELD WIRING r 10101 2 SUPPLY FAN AND COIL SECTION 1CBi TRANSFORMER CIRCUIT BREAKER 16 2 ERS OSURES AND OR DASHED ri ir in 3 1Ki SUPPLY FAN CONTACTOR 20 a RO CINES INDICATES WIRING BY 4 MIXING SECTION i RANE lig 4 dd 5 EXTERNAL PIPING T CONTROL POWER TRANSFORMER 16 11 A 756 6 ELECTRIC HEAT CONTROL BOX 1 L1 1 L2 CONTROL TERMINAL BLOCK 3 ALL FIELD WIRING MUST BE IN ACCORDANCE WITH THE i om mi 4 NATIONAL ELECTRIC CODE NEC STATE AND LOCAL 7 FELD INSTALLED DEVICE 4U1__ TERMINAL UNT CONTROLLER 18 Tes REQUIREMENTS 281 SUPPLY FAN MOTOR 11 1 1 4 NUMBERS ALONG THE RIGHT SIDE OF THE SCHEMATI 5 DESIGNATE THE LOCATION OF CONTACTS BY LINE NUMBER Shea 252 CONDENSATE OVERFLOW SWITCH 32 lt 5 FJELD SUPPLIED CONTROL RELAYS POWERED BY THIS e 6 UST BE PILOT DUTY RATED 24VAC COIL 257 HT LOGOUT SGH z CE fg INST Ag eu Duro CONTROL BO SHIELD MUST GROUNDED AT UCM END END CHASSIS AND 582 ___ VALVE MOTOR 23 TAPED
2. 63 Maintenance Procedures 63 Coil Maintenance 69 Periodic Maintenance Checklists 70 DiagnostiGs ot Ie RR da dell Eee ea do Pee 72 Troubleshooting rannan n aaea hn 72 LED ACHIV hoe decode xor ca een CA afe eae aie 72 Manual Output Test 0 0c cece hh 73 Diagnostics wi sevice heed ode ead Roe Race Ron 74 Translating Multiple Diagnostics 74 Resetting Diagnostics 75 Common Diagnostics 78 Wiring Diagrams 0 cc m 81 6 BCXC SVX01B EN Model Number Description Following is acomplete description of the blower coil model number Each digit in the model number has a corresponding code that identifies specific unit options Digits 1 2 3 4 Unit Model BCHC horizontal blower coil BCVC vertical blower coil Digits 5 6 7 Unit Size 012 024 054 018 036 072 090 Digit 8 Unit Voltage 115 60 1 575 60 3 208 60 1 220 50 1 230 60 1 240 50 1 D 277 60 1 L 380 50 3 E 208 60 3 415 50 3 230 60 3 N 190 50 3 460 60 3 two speed 115 60 1 0 no motor ctrls elec ht Digit 9 Insulation Type 1 1
3. 17 Bottom or Top Access Filter 18 Electric Heat ee egre ee ua dale ee a eg 19 Octubre 20 Coil Connections seseo need maa ee s 21 Piping Packages 00 cece eet eee 22 Installation Controls 25 Installing Wall Mounted Controls 25 Zone Sensor Installation 0 0 0 eens 25 Communication Wiring 26 Tracer Summit Communication Wiring 27 Installation Electrical 0 0 0 c ccc n 28 Unit Wiring Diagrams 28 Supply Power Wiring 28 Electrical 5 28 Electrical Grounding lt 29 Installation 33 Installing the Unit 33 Heating Coil Option 0 0 0 cece 35 Mixing Box Option 0 cc eee eens 35 Condensate Drain Connections 36 Duct Connections eee eens 37 Installation Piping 0 0 cece cece RR RI I n 38 Water Coil Connections 38
4. d1 ZONE 1K1710 12 7K5 5 14A YEL 21 fp L o l 2 anis pg 151552 Pus GND 2 d2 COM 22 BLK o fo 18A GRN 16155 8 LOW SPEED SET 3 43 csP 12 11 5B2 1 2 1 J BP3 1 G sPLOEBLU BLK SPUCGE 505 2 1 2 2 23 4p 1181 1770 2J3 1 EO 794 23 3 2 Pi s ON OFF CLG FAN 4 44 FAN SWITCH 8 1 2 3 5 3 24 MM M sca SPUCE BRN 2 8 d6 COMM LOW 5B3 coM 7 M 1P4 1 L EPG 1p SPLICE BLU BLK spyce 555 2 194 2 c peat 1 1 44716 Tai 275 16 TBA 95 6 2 342 1P1 558 He Ms S eod Co 222 B gt _1 4 5P5 5 _ SPUCE TB2 4 b Cy 192 TSS 025637 TRAGER COMM OUT 27 eee eee 12A PNK 47 DAMPER 1B2 3p Aj 29 1P1 9 lt e 2 SPLICE AND Pd INSULATE SHIELDS 28 TB2 2p 47 cw BAR Cn 29 30 5RT2 1 11 1 S8A ORG OTST 1 icr 1P11 2 gt B 37A ORG SA PUR 2P7 1 2S2 B 207 2 A WARNING 509 2 2 9 2 1711 2 M 13 2 MN 077 16 287 0 ZR SANBRN us 5 CONDENSATE _ 24 CREN PLIE 2 10 172 10 1 Hazardous Voltage 2 DAT d 1 501 03 4 12 8 Disconnect all electric power including BI 3 EE Ea RECONFIGURED remote disconnects before servicing Follow 2 6 p 4 proper lockout tagout procedures
5. dTB4 1 BOP 2 1 GENERIC BOP GENERIC m dl d 4 2 24 Hazardous Voltage 2 3 APUR 227 1 2 pir BI 2 i Disconnect all electric power including 2811 g 34A BRN 5 5 CONDENSATE 24A PUR FLUG remote disconnects before servicing Follow 2 10 17 2310 1 2 DAT proper lockout tagout procedures to ensure B S5A BRN J m 2P10 27 210 2 the power can not be inadvertently IRIS BI 3 Occ uNocc OR FIELD RECONFIGURED energized Failure to disconnect power before d J3 5 J2 6p 4L 4 servicing could result in death or serious Al 3 OAT SA YEL 255 um 443 6 J2 7 o injury BI 4 FAN STAT _ 26A YEL Use copper conductors only Unit terminals are not designed to accept other conductor types Failure to use copper conductors could cause equipment damage BCXC SVX01B EN 87 e TRANE Wiring Diagrams Four Pipe BCXC with Control Interface e 208 volt 3 phase e 3 wire floating point valves e 2 position damper e limit protection e econdensate overflow NOTES 1 UNLESS OTHERWISE NOTED ALL SWITCHES ARE SHOWN RE DRE 7 Em TE 1
6. 2 PA 8 3400 20 28 OR WINDY CITY OR CONNECT AIR LEVEL 4 CABLE MAXIMUM OF 4500 FOOT m AGGREGATE RUN ABLK RED 4A 7 5 EXHAUST FAN CONTROL RELAY 24 10 CAUTION DO NOT RUN POWER IN THE SAVE elle 281 CONDUIT OR WIRE BUNDLE WITH COMMUNICATION LINK 1 1 FOR ADDITIONAL INFORMATION REFER TO EMIX EB 68 ABLK ao EE ES BLUE CONNECTORS USED FOR COOLING CIRCUIT a RED CONNECTORS USED FOR HEATING CIRCUIT 1K1 7S6 IFUSEO DISCONNECT SWITCH 5 12 BLUE WIRES USED FOR COOLING CIRCUIT RED A E 6A IRES USED FOR HEATING CIRCUIT BLK GRN 706 ZONE SENSOR MODULE 20 13 PLUG CONNECTOR 4 CONNECTOR u BLK RED 18 1T T W BLK 1281 BLU 24 YEL 11 1 12 B BLK 75VA 11 2 1812 D WHT 101 jam ew BLK dTBi 1 24 POWER GND 1B1 2b 2 19 1K1 dw E BLK 17A BLK 1 HIGH SPEED ZONE TB3 1p 1K1 10 12 HTB1 LT 10 1P171 5 zi BEES s e sess TQ 14 2612 ExHAUST GND TB3 2p 10 1P1 2 22 SET TB3 3p 5B2 1TB1 L K 10271 J 5P3 gt 1 sPUcEBLU BLK spuce 505 2 pg 1R2 2 10 72 16 ase ON OF aa 8 K 1 2 5 5P3 3 CLG HTG 24 T n EE ecc 6 COMM LOW 583 1TB1 L M 1P471 5P571 sPucEBLU BLK wue 565 2 184 2 qm Rb 25 5 14 1 zs EO t P EC s cis eere 2 8 p 8 gt y 1P4 3 5P5 3 ERN TB2 4 T aF eye oe COMM 2072 TBA
7. 1 DISCHARGE AIR TEMP SENSOR lt 6 FIELD SUPPLIED CONTROL RELAYS POWERED BY THIS UNIT 3 3 3 E 282 CONDENSATE OVERFLOW SWITCH 32 MUST BE PILOT DUTY RATED 24VAC COIL 6VA 5 5 8 5 283 FREEZE STAT lt 6 WIRING TO ZONE SENSOR MUST BE 16 22 AWG CU TWISTED GRN BLK BLK PAIR SHIELDED CABLE AND NO MORE THAN 1000 FT LG SHIELD MUST BE GROUNDED AT UCM END END CHASSIS AND 258 EVAP DEFROST FROSTAT 24 TAPED AT THE OTHER END IF INSTALLED IN CONDUIT DO 181 NOT INSTALL WIRES IN CONDUIT THAT CONTAINS WIRES 24VAC EQUIPMENT HIGH VOLTAGE POWER WIRES GROUND lt 7 COMMUNICATION WIRE MUST TRANE PART NO 1 2 4002028 OR WINDY CITY OR CONNECT AIR LEVEL 4 CABLE MAXIMUM OF 4500 FOOT AGGREGATE RUN ABKmE KI 783 HEATING COIL VALVE MOTOR 25 97 00 GONDUR OR WIRE BUNDLE WITH COMMUNICATION LINK com 1221 FOR ADDITIONAL INFORMATION REFER EMTX EB 68 ABLK 1 2 Y Li EXHAUST FAN CONTROL RELAY 21 11 8 BLUE CONNECTORS USED FOR COOLING CIRCUIT low RED CONNECTORS USED FOR HEATING CIRCUIT 1K1 BLUE WIRES USED FOR COOLING CIRCUIT RED A of fo 7RT3___ OUTSIDE AIR TEMP SENSOR 35 WIRES USED FOR HEATING CIRCUIT Hi 786 FUSED DISCONNECT SWITCH 3 8 BLK GRN 704 MIXING BOX DAMPER ACTUATOR 27 796 ZONE SENSOR MODULE 20 PLUG CONNECTOR 1 BLK RED 4 JACK CONNECTOR 16 WIBLK 1 1 BLU ant w 1TB1 L2 16 of Yo 24 BLK 75 11 77 p 1 142 D WHT
8. 48 Controller Start Up Refer to Trane publication CNT SVX04A EN Installation Operation and Programming Guide to operate the Tracer ZN controller with Trane Integrated Comfort System ICS The factory pre programs the Tracer ZN controller with default values to control the temperature and unit airflow Use Tracer Summit building automation system or Rover software to change the default values Follow the procedure below to operate the Tracer ZN controller in a stand alone operation 1 Turn power on at the disconnect switch option 2 Position the fan mode switch to either high low or the auto position 3 Rotate the setpoint dial on the zone sensor module to 55 F for cooling or 85 F for heating The appropriate control valve will actuate assuming the following conditions 1 Room temperature should be greater than 55 F and less than 85 F 2 Foratwo pipe unit with an automatic changeover sensor the water temperature input is appropriate for the demand placed on the unit For example cooling operation is requested and cold water 5 lower than room temperature flows into the unit 3 Select the correct temperature setpoint Note Select and enable zone sensor temperature settings to prevent freeze damage to unit Power Up Sequence When 24 VAC power is initially applied to the Tracer ZN controller the following sequence occurs e all outputs are controlled off e Tracer reads all input values to determi
9. ARED off 2 1 705 MIXING BOX DAMPER ACTUATOR 27 1K1 M P PLUG CONNECTOR 1 A BLK 5A o J WACK CONNECTOR 1 1 d A 6A GRN de BLK 44 RED 15 1Ti m W BLK 1081 BLU AM YEL 1185 1 B BLK 75 I 17 ION CONTROLLER _____ 11 5 1 18 t d2 v POWER Np p 1 19 KM AE BLK IK A BLK 1TB3 6 1TB4 SA GRA 253 20 O qHIGH SPEED o 1K1 10 12 1185 2710 75 lt I 1701 FRZ STAT 21 n 1TB5 1 1 1TB4 4 A GRA 21 elpe EXHAUST 0 Vig js 22 1TB4 22 16 A PUR 307 1 252 1921 2481 582 5P3 2 1P2 2 1783 4 CONDENSATE airar um 25 1TB5 K J 5 SPLICE BLU BLK SPLICE Ex B d OPEN A 10 105 1 6P3 16 2 lt 23 2 1042 2 19 cLG HTG 24 2 7 B BRNSPYCE 5 3 B 1 3 1 3 5 1 24 x Q dcLosE 1 213 3 12 35 20 2 1 1 A 5P5 2 1P4 2 1TB3 ag 1785 M L a E Ba BLK St B O d OPEN 10 NE un 6 lt 7 255 2 154 2 He 5P5 3 1P4 3 26 AI S5 B 40105 706 205 3 14 3 16 2 4 27 Leconte ese eee See I Le 12 DAMPER 28 1 29 aaa See 4 30 WARNING Hazardous Voltage Disconnect all electric power including remote disconnects before servicing Follow proper lockout tagout procedures to
10. Angle Filter and Mixing Box A 4 25 1 00 4 28 j B 7 4 28 combination angle filter amp mixing box 4 25 FILTER ACCESS A 4 25 1 00 4 28 B po 4 28 mixing box beet d E d w _ ACCESS PANEL 4 28 4 28 angle filter box x FILTER ACCESS NOTES ALL DIMENSIONS ARE IN INCHES MIXING BOX SHIPS ASSEMBLED FOR FIELD INSTALLATION LINKAGE BETWEEN DAMPERS FACTORY INSTALLED INSIDE MIXING BOX OPPOSITE DRIVE SIDE DRIVE ROD ON BACK DAMPER MAY BE EXTENDED THRU KNOCKOUT FOR EXTERNALLY MOUNTED ACTUATOR TO ADJUST LOSSEN HEX HD SET SCREW ON BLADE UNIT SIZE 36 HAS ONLY ONE ANGLED FILTER TRACK ALL OTHER UNIT SIZES HAVE TWO FILTER TRACKS AS SHOWN Table 4 Angle filter and mixing box dimensions in and weights Ib Unit size H L Ww A B Weight 12 14 12 22 00 24 11 7 06 15 56 36 0 16 14 12 22 00 28 11 7 06 19 56 41 0 24 18 12 19 50 28 11 7 06 19 56 43 0 36 18 12 24 50 40 11 7 06 31 56 56 0 54 22 12 23 50 40 11 12 81 31 56 72 0 72 22 00 23 50 48 00 12 81 32 56 72 5 90 27 90 27 56 48 00 12 85 31 56 84 1 BCXC SVX01B EN 17 e TRANE Dimensions and Weights Bottom or Top
11. p 72 for more information about abnormal unit operation Heating output is controlled based on the heating capacity At 096 capacity the heating output is off continuously Between 0 and 100 capacity the heating output is controlled according to modulating valve logic ZN520 only or cycled with 2 position valves As the load increases modulating outputs open further and binary outputs are energized longer At 100 capacity the modulating valve is fully open Tracer ZN520 only or on continuously with 2 position valves Economizer Damper Tracer ZN520 Only The economizer damper option is never used for as a source for heating but only for ventilation Therefore the damper is at the occupied minimum position in the occupied mode The damper control is primarily associated with occupied fan operation Dehumidification Tracer ZN520 only During dehumidification the Tracer ZN520 controller adjusts the heating setpoint up to the cooling setpoint This reduces the relative humidity in the space with a minimum of energy usage The controller uses the measured space temperature the active heating setpoint and discharge air temperature Tracer ZN520 only along with the control algorithm to determine the requested 51 heating capacity of the unit 0 100956 The outputs are controlled based on the unit configuration and the required heating capacity Fan Mode Operation WARNING Rotating Components Disconnect all ele
12. Cool default Off high Cycling off Off heat default 2 Off high 2 Off cool default Off high Notes 1 During the transition from off to any fan speed but high Tracer 2 010 and ZN510 automatically start the fan on high speed and run for one half of a second before transitioning to the selected speed if it is other than high This provides enough torque to start all fan motors from the off position 2 When the heating output is controlled off ZNO10 and ZN510 automatically control the fan on for an additional 30 seconds This delay allows the fan to dissipate any residual heat from the heating source such as electric heat a Whenever two states are listed for the fan the first state off applies when there is not a call for heating or cooling The second state varies applies where there is a call for heating or cooling The heat default is factory configured for low fan speed and the cool default is high Table 22 Valid operating range and factor default setpoints Tracer ZN010 and ZN510 Setpoint parameter Default setting Valid operating range Unoccupied cooling setpoint 85 F 40 F 115 F Occupied cooling setpoint 74 F 40 F 115 F Occupied heating setpoint 71 F 40 F 115 F Unoccupied heating setpoint 60 F 40 F 115 F Cooling setpoint high limit 110 F 40 F 115 F Cooling setpoint low limit 40 F 40 F 115 F Heating setpoint high limit 105 F 40 F 115 F Heating setpo
13. DEVICE LOCATION LEGEND 50 RELATIVE HUMIDITY WITH ALL UTILITIES TURNED N AREA DEVICE LINE t OFF AND AFTER A NORMAL SHUTDOWN HAS OCCURED oj 1 MAIN CONTROL PANEL DESIGNATION NUMBER 2 DASHED LINER INDICATE RECOMMENDED RELD RING po 2 SUPPLY FAN AND COIL SECTION 1 1 TRANSFORMER CIRCUIT BREAKER 16 BEVICE OUTLINES INDICATE COMPONENTS PAOVIDED oH pg 1 3 ES SUPPLY FAN CONTACTOR 2 4 MIXING BOX SECTION 1 DX RELAY 24 xd 1 BYTHE FIELD SOLID LINES INDICATE WIRING BY i a 5 EXTERNAL PIPING 4 1788 7S6 6 ELECTRIC HEAT CONTROL BOX 111 CONTROL POWER TRANSFORMER 16 NATIONAL ELECTRIC CODE STATE AND LOCAL 7 HELD INSTALLED DEVICE CONTROLTERMINAL BLOCK aa REQUIREMENTS es E 10 ZN CONTROLLER 18 4 NUMBERS ALONGTHE RIGHT SIDE OFTHE SCHEMATIC 281 SUPPLY FAN MOTOR 5 DESIGNATE THE LOCATION OF CONTACTS BY LINE NUMBER bod 5 FIELD SUPPLIED CONTROL RELAYS POWERED BYTHIS UNIT 282 CONDENSATE CVERFLOW SWITCH 32 MUST BE PILOT DUTY RATED 24VAC COIL VA lt 6 WIRINGTO ZONE SENSOR MUST BE 16 22 AWG CUTWISTED ELECTRIC HEAT NrLOCKDUT SWITCH PAIR SHIELDED CABLE AND NO MORETHAN 1000 FT LG CONTROL BOX BD SHIELD MUST BE GROUNDED AT UCM ENDIEND CHASSIS AND 351 258 EVAP DEFROST FROSTAT 24 NOT INSTALE WIRES IN CONDUIT THAT CONTAINS WIRES 24VAC BOX DAMPER e OR HIGH VOLTAGE POWER WIRES lt
14. Entering water Discharge air Outside air Generic Notes 1 The generic input and output are for use with a Tracer Summit systems only 2 Contact the factory for recommendations regarding steam coil valve selections compatible with Tracer ZN controllers BCXC SVX01B EN e TRANE Controls Interface Table 16 Tracer controller function summary Tracer Controller ZNO10 ZN510 ZN520 Control functions Entering water temp sampling purge Timed override Auto changeover Fan cycling Warm up Data sharing master slave Random start Dehumidification Staged capacity 2 stage electric supplementary DX cooling Other Functions Manual test Filter maintenance timer Setpoint limits e Table 17 End Device Option Availability Tracer Control Device ZNO10 Tracer ZN510 Tracer ZN520 interface Condensate float switch Low limit Filter status Filter run time diagnostic Fan status Positive proof fan status switch 2 position control valves e Modulating control valves 2 position mixing box actuator Modulating mixing box actuator 1 stage electric heat e 2 stage electric heat Frostat protection DX coils Notes 1 The Tracer ZNO10 Tracer ZN510 and Tracer ZN520 are factory provided controls that control the end devices
15. Piping 38 Refrigerant Coil Piping 38 Field Installing Evaporator Piping 40 Steam a OE e be 41 Controls Ra Vee eee bed hee eae 43 Control Options serdes trint badena Er 43 Tracer Controllers ceeds RR Ree ee eae ERR Ge 43 Rover Service Software 44 alc a CP 46 StartUp ccs soa eke Miia LG Be Rud ls ugs 48 Sequence of Operation 48 Tracer ZN Controller Sequence of Operation 48 Cooling Operation 0 ccc eee 50 Fan Mode Operation 52 Two and Four Pipe Changeover Operation 55 Electric Heat Operation 56 Economizer Damper Tracer ZN520 56 Tracer Dehumidification Tracer ZN520 Only 57 Data Sharing Tracer ZN510 ZN520 Only 57 Binary IMputs Ga hide moe ee car ea 57 Analog Inputs cee ee ees 59 Binary OUTPUTS er seas 59 Zone Sensor few 45648444 de ara ele od be a 60 Maintenance
16. T 11 1 1TB1 L1 1 l TB1 124V POWER GND TB1 2 D JA 7U6 lt 20 TASS 1 HIGH SPEED 20 p 1 ZONE 1K1 10 12 81 01 10 1 1 1 4 a MHI 2 EXHAUST GNDTB32 d2 10 1 1 2 a 3 5 d3 CSP 5 4 2 5 3 2 20 TTBI4 K L ad 5 o a aa 23 73 AH 1 MT iia TIN FAN TB3 6 p d4 FAN SWITCH 24 J1P2 3 5P3 3 5 4 3 GJ W 1723 Lp 24 P238 BPS 5 43 MR waes 1K3 23 ui 124 17232883 5 11 55 51338 188 ami qe E p d6 COMM LOW s 178141 1P64 1 561 75 572 ana 862 182 du con 10 1541 2261 D 874 N 5772 2362 152 apg i gt 1 3 5873 5 7 3 5 3 1 3 L0 es 2 a 57 3 2J63 WS v 10 7 TRACER 1P amp 3 74 1 1841 COMM OUT EWHT 188 cow M 2 c 111 OPEN sec M 1J8 3 2J9 3 4 9 1 1 8 1 1 1 11 OAD SPLICE AND 1P84 1482 INSULATE SHIELDS BIBLIO 000 e lt 12 Grose 104 294 1 4 2 1 8 2 1P1 12 LO TRACER lt 7 nnn 4 1 BOP Lec ar 9 GENERIC BOP GENERIC 283 s nn dib TB4 2 24V J21 RIAIGRA 1P11 1 FRZSTAT 22A GRA 0 1 241041 1311 1 S 1P11 2 2P13 1 252 B 13 2 WARNING
17. FIELD INSTALLED DEVICE Ut CONTROLLER 18 REQUIREMENTS 1 IE 2B1 ISUPPLY FAN MOTOR 11 4 NUMBERS ALONG THE RIGHT SIDE OF THE SCHEMATI d 252 CONDENSATE OVERFLOW SWITCH 20 5 DESIGNATE THE LOCATION OF CONTACTS BY LINE NUMBER ul AL wl 2S3 FREEZE STAT 22 lt 5 FIELD SUPPLIED CONTROL RELAYS POWERED BY THIS UNIT E Se S UST BE PILOT DUTY RATED 24VAC COIL 6VA 8 8 8 lt ROWER AVAILABLE FOR FIELD SUPPLIED CONTROLLER GRN WHT BLK T 151 9 9 582 MAIN COIL VALVE MOTOR 23 X7 BLUE CONNECTORS USED FOR COOLING CIRCUIT EQUIPMENT Ea 583 AUXILIARY COIL VALVE MOTOR 25 RED CONNECTORS USED FOR HEATING CIRCUIT GROUND LUE WIRES USED FOR COOLING CIRCUIT RED 9 IRES USED Hh 1A 2 7K5 EXHAUST FAN CONTROL RELAY 21 1 1 756 FUSED DISCONNECT SWITCH 3 4A WHT 10 ncm COM 281 705 MIXING DAMPER ACTUATOR 27 1 M P PLUG CONNECTOR 1 c Afo Br J CONNECTOR 1K1 12 AC BLK le 5A di BLK 14 15 1CB1 171 1TB5 1 16 W BLK oto BLU 24V YEL B BLK 75VA HE 19 11 11 3 1784 3 20 KM o EF 155 8 HIGH SPEED 253 1K1 10 12 1185 2110 765 2 8 21 4 Jo Louis 23 Ud 1TB3 3 1 84 1 22 SPEED APUR 27 1 222 1K1 11 192 1 J 203 1 5B2 1 1738 CONDENSATE m 2 223 25 1 5 7 G
18. OFF FER A NORMAL SHUTDOWN HAS OCCURED 11 1 MAIN CONTROL PANEL DESIGNATION DESCRIPTION NUMBER 2 DASHED LINES INDICATE RECOMMENDED FIELD WIRING 10101 2 SUPPLY FAN AND COIL SECTION 1051 TRANSFORMER CIRCUIT BREAKER 16 252 SURES A INDICATE 9 PONENTS D PR ROVIDED E 5 N N Akt SUPPLY FAN CONTACTOR 20 1 1 4 4 MIXING BOX SECTIO 151 MANUAL DISCONNECT SWITCH 7 TN SOLDIK E INDICATE WIRING BY 5 EXTERNAL PIPING 111 CONTROL POWER TRANSFORMER 16 1 IBS A 4 756 6 1TB2 1TB5 CONTROL TERMINAL BLOCK AL RED WIRING MUST BE IN ACCORDANCE WITH THE 1 im om Mi TIONAL ELECTRIC CODE NEC STATE AND LOCAL 7 FIELD INSTALLED DEVICE Ut CONTROLLER 18 dec 1 281 ISUPPLY FAN MOTOR 11 4 NUMBERS ALONG THE RIGHT SIDE OF THE SCHEMATI b Ad 252 CONDENSATE OVERFLOW SWITCH 20 5 DESIGNATE THE LOCATION OF CONTACTS BY LINE NUMBER al IM gt 283 FREEZE STAT 22 lt 6 FJELD SUPPLIED CONTROL RELAYS POWERED BY THIS UNIT 2 Se 36 p UST BE PILOT DUTY RATED 24VAC COIL 6VA MAX 5 8 8 lt AVAILABLE FOR FIELD SUPPLIED CONTROLLER GRN BLK BLK BLK AVAC 1 i 15 9 5B2 COIL VALVE MOTOR 23 lt T BLUE CONNECTORS USED FOR COOLING CIRCUIT EQUPMENT 4 4 583 AUXILARY COIL VALVE MOTOR 25 8 RED CONNECTORS USED FOR HEATING CIRCUIT GROUND 221211 E 9 1A 2A 3A 7 5 EXHAUST FAN CONTROL RELAY 21 1K1 756 FUSED DISCONNECT SWITCH 3 10
19. override time expires or until you press the Cancel button Communication Jack Use the RJ 11 communication as the connection point from Rover service tool to the communication link when the communication jack is wired to the communication link at the controller By accessing the communication jack via Rover you gain access to any controller on the link Figure 14 Resistance temperature curve for the zone sensor entering water temperature sensor and discharge air sensor 90 000 80000 a 70 000 60 000 5000 4 1000 Resistance Ohms 3000 4 ee ie ee ee ne ee eee eee eee ee ee eee a a Ro a ae 20000 4 1 4 2 10000 1 4 4 Re m mom ee 4 4 0 10 20 30 40 50 60 Temperature Degrees 70 80 90 100 110 120 130 140 150 BCXC SVX01B EN TRANE Maintenance Maintenance Procedures BCXC SVX01B EN Perform the following maintenance procedures to ensure proper unit operation Air Filters Always install filters with directional arrows pointing toward the fan Fan Bearings Fan bearings are permanently sealed and lubricated and do not require additional lubrication Fan Motors Inspect fan motors periodically for excessive vi
20. to detect occupancy The sensor defaults normally open but can be configured as either normally open or closed Table 27 Binary input configurations Controller operation Binary input Description Configuration Contact closed Contact open 1 Low temperature detection a NC Normal Diagnostic BI 2 Condensate overflow NC Normal Diagnostic BI Occupancy NO Unoccupied Occupied BI 3 Generic binary input NO Normal Normal 9 BI 4 Fan status NO Normal Diagnostic Notes 1 The occupancy binary input is for standalone unit controllers as an occupied unoccupied input However when the controller receives a communicated occupied unoccupied request the communicated request has priority over the hardwired input 2 If the fan mode input is in the off position or the controller is in the unoccupied mode with the fan off the fan status input will be open A diagnostic will not be generated when the controller commands the fan off A diagnostic will only be generated if the fan status input does not close after one minute from energizing a fan output or any time the input is open for one minute The controller waits up to one minute after energizing a fan output to allow the differential pressure to build up across the fan a During low temperature condensate overflow and fan status diagnostics the Tracer ZN520 control disables all normal unit operation of the fan valves and damper b The table below shows the c
21. 1 BPE ARO ALTER A NORMAL SHUTDOWN HAS OCCURED Dod Tg 1 MAIN CONTROL PANEL DESIGNATION DESCRIPTION NUMBER 2 DASHED LINES INDICATE RECOMMENDED FIELD WIRING p l 2 SUPPLY FAN AND COIL SECTION 1 1 TRANSFORMER CIRCUIT BREAKER 16 PERS BY ES RASHED HNE A PONENTS B DAR D SHED rod 3 1K1 SUPPLY FAN CONTACTOR 20 Bv tie PED SOLID LINES INDICATE WIRING BY j ay 2 001 4 IIXING BOX SECTION 181 MANUAL DISCONNECT SWITCH 7 RANE CO eke T T 1 E EXTERNAL PIPING 111 CONTROL POER TRANSFORMER 16 1TB1 L1 L2 CONTROL TERMINAL BLOCK 3 ALL FIELD WIRING MUST BE IN ACCORDANCE WITH THE im m mi NATIONAL ELECTRIC CODE NEC STATE AND Yoga 7 INSTALLED DEVICE 1U1 COMFORT LINK CONTROLLER 18 REQUIREMENTS l iy 2B1 SUPPLY FAN MOTOR 11 4 NUMBERS ALONG THE RIGHT SIDE OF THE SCHEMATI 2RT1 DISCHARGE AIR TEMP SENSOR 33 5 DESIGNATE THE LOCATION OF CONTACTS BY LINE NUMBER il 282 CONDENSATE OVERFLOW SWITCH 32 5 FJELD SUPPLIED CONTROL RELAYS POWERED BY THIS UNIT S Se Se Se p a Most BE PILOT DUTY RATED 24VAC COIL 6VA MAX 5 5 5 255 FAN STATUS SWITCH 36 6 WIRING TO ZONE SENSOR MUST BE 16 22 AWG CU TWISTED GRN BLK BLK BLK Gl MAR SLE E CARTE AND NO MORE THAT 100 EE S cut Su EO NOT INSTALL WIRES IN CONDUIT THAT CONTAINS WIRES 24VAC EQUIPMENT 585 __ AUXIUARY COIL VALVE MOTOR 25 8 OR HIGH VOLTAGE POWER WIRES GROUND X7 COMMUNICATION WIRE MUST BE TRANE PART NO
22. 2 0 6 1 6 1 7 9 Maximum gpm 0 5 2 5 2 10 4 10 4 32 6 32 6 42 0 Dry coil weight Ib 5 9 7 0 9 9 14 1 27 2 32 1 39 4 Wet coil weight Ib kg 7 2 8 4 12 3 17 6 36 1 42 5 52 6 Internal volume in 36 0 38 8 66 5 96 9 246 5 288 0 365 5 4 row coil e Standard capacity Minimum gpm 9 N A N A N A N A 8 8 8 8 11 7 Maximum gpm f N A N A N A N A 47 0 47 0 62 6 Dry coil weight Ib 9 N A N A N A N A 37 2 44 5 58 5 Wet coil weight Ib 9 N A N A N A N A 48 3 57 7 77 0 Internal volume in3 9 N A N A N A N A 307 4 365 5 512 3 e High capacity Minimum gpm 2 0 2 0 2 9 2 9 6 1 6 1 7 9 Maximum gpm f 10 4 10 4 15 7 15 7 32 6 32 6 42 0 Dry coil weight Ib 10 5 12 4 17 7 25 5 47 0 56 3 73 1 Wet coil weight Ib 13 1 15 5 22 5 32 5 62 7 74 9 97 9 Internal volume 113 72 0 85 8 132 9 193 8 433 0 516 7 688 3 BCXC SVX01B EN e TRANE Maintenance Table 34 BCHC BCVC coil general data continued Unit size 12 18 24 36 54 72 90 Nominal cfm 400 600 800 1200 1800 2400 3000 6 row coil e Standard capacity Minimum gpm 9 N A N A N A N A 8 8 8 8 11 7 Maximum gpm f N A N A N A N A 47 0 47 0 62 6 Dry coil weight Ib 9 N A N A N A N A 52 4 63 1 82 7 Wet coil weight Ib 9 N A N A N A N A 68 1 82 0 108 7 Internal volume in3 9 N A N A N A N A 434 8 523 4 720 0 e High capacity Minimum gpm 9 2 0 2 0 2 9 2 9 6 1 6 1 7 9 Maximum gpm P 10 4 10 4 15 7 15 7 32 6 32 6 42 0 Dry coil weight Ib 14 6 17 4 24 7 36 1 65 4 78 6 101 5 Wet
23. 2 1 54 22 00 40 00 20 06 34 04 2 98 50 2 1 72 22 00 48 00 20 06 42 04 2 98 56 2 1 90 28 00 48 00 26 06 40 04 3 98 63 2 5 1 1 4 20 BCXC SVX01B EN e TRANE Dimensions and Weights Coil Connections Table 8 Hydronic coil connection sizes OD in Standard capacity High capacity Unit size 1 row 4 row 6 row 2 row 4 row 6 row 12 5 8 5 8 7 8 7 8 18 5 8 5 8 7 8 7 8 24 5 8 7 8 1 1 8 1 1 8 36 7 8 7 8 1 1 8 1 1 8 54 1 1 8 1 3 8 1 3 8 1 1 8 1 1 8 1 1 8 72 1 1 8 1 3 8 1 3 8 1 1 8 1 1 8 1 1 8 90 1 1 8 1 5 8 1 5 8 1 1 8 1 1 8 1 1 8 Table 9 DX coil connection sizes OD in 3 amp 4 row 6 row Unit size Suction Liquid Suction Liquid 12 5 8 5 8 5 8 5 8 18 5 8 5 8 5 8 5 8 24 5 8 5 8 7 8 5 8 36 7 8 5 8 7 8 5 8 54 1 1 8 7 8 1 1 8 7 8 72 1 1 8 7 8 1 1 8 7 8 90 1 3 8 7 8 1 1 8 7 8 Table 10 Steam coil connection sizes female connection NPT in Unit size Supply Return 12 1 3 4 18 1 3 4 24 1 1 2 1 36 1 1 2 1 54 2 1 72 2 1 90 2 1 2 1 1 4 BCXC SVX01B EN 21 e TRANE Dimensions and Weights Piping Packages Basic Piping Two way 1 2 and 1 valve basic piping package IL Two way 1 1 4 valve basic piping package 22 BCXC SVX01B EN e TRANE Dimensions and Weights Delux
24. 2 1P6 2 1P1 12 10 con ME cn p dTB4 1 BOP 2 19 24 3 A WARNING i L 4 4 2 24 Hazardous Voltage Disconnect all electric power including 12 3 ZARUR 287 1 252 B 35247 2 remote disconnects before servicing Follow ae BI 2 2 7 0 proper lockout tagout procedures to ensure EE d 3 3 CONDENSATE 24A PUR the power can not be inadvertently 2 DAT energized Failure to disconnect power before __ 445 4 42 8 TOR HEL RECONFIGURE servicing could result in death or serious TRIS sien BI 3 OCC UNOCC AS GENERIC injury ee 4 up scr uud cuam CET ED ae eee ee es d J3 6 42 7 p25A VEL 255 N TI CE FAN STA 26A YEL E J2 8p Use copper conductors only Unit terminals are not designed to accept other conductor types Failure to use copper conductors could cause equipment damage 84 BCXC SVX01B EN e TRANE Wiring Diagrams Four Pipe BCXC with Tracer ZN520 e 460 volt 3 phase e 2 position valves e condensate overflow e fan status switch NOTES 1 UNLESS OTHERWISE NOTED ALL SWITCHES ARE SHO DE Du E Me ORTON
25. 282 CONDENSATE OVERFLOW SWITCH 32 Se 2 5 FJELD SUPPLIED CONTROL RELAYS POWERED BY THIS UNIT 8 El ERP RELAIS POWERED BY RE 8 8 lt 6 WIRING TO ZONE SENSOR MUST BE 16 22 AWS CU U TWISTED GRN WHT BLK 7 EARLS TURE Be GROUNDED AT EN AMEN AND 582 COIL VALVE MOTOR E TAPED AT THE OTHER END IF INSTALLED IN CONDU Eder S j 4 d 5B3 AUXILIARY COIL VALVE MOTOR 25 a NOT INSTALL WIRES IN CONDUIT THAT CONTAINS WIRES 24VAC GROUND 5812 AUTO CHANGEOVER SENSOR 31 OR HIGH VOLTAGE POWER WIRES M 9 lt COMMUNICATION RE MUST BE TRANE PART NO 400 2028 OR WINDY GITY OR CONNECT AIR CABLE MUM OF 4500 FOOT AWHT 1K1 7K5 EXHAUST FAN CONTROL RELAY 21 10 ARRON DO Nor RUN POWER IN THE SAM T COM CONDUIT OR IRE BU LE WER COMMUNICATION LINK 1K2 M 41 __ FOR ADDITIO FORMATION REFER TO 68 c o fo 88 lt 8 BLUE CONNECTORS USED FOR COOLING CIRCUIT tow I 756 FUSED DISCONNECT SWITCH 3 i2 BEDE WIRES USEb FOR COGUNG CINCUT RED ACBLK lle 5 IRES USED FOR HEATING CIRCUIT Hi 705 OUTSIDE AIR DAMPER ACTUATOR 27 GRN 706 ZONE SENSOR MODULE 20 13 P PLUG CONNECTOR J CONNECTOR 14 WHT 15 1081 vn 1TB1 12 16 W BLK of Yo BLU 24V YEL B GRN 75 11 ie io 1 1 12 D WHT 11KM 1U1 oe BLK dTB1 1 24 POWER GND TB1 2b 2 19 6 w 1781 0 10 J1 zu 20 17A BLK apr HIGH SPEED 20
26. 37 Green status LED activity Green LED activity Description On continuously Power on normal operation Blinks one blink The controller is in manual output test mode No diagnostics present Blinks two blinks The controller is in manual output test mode One or more diagnostics are present LED blinks 1 4 second on 1 4 second off for 10 seconds Wink mode Power is off Controller failure Test button is pressed LED off a The Wink feature allows you to identify a controller By sending a request from Rover service tool you can request the controller to wink blink on and off as a notification that the controller received the signal The green LED blinks 1 4 second on 1 4 second off for 10 seconds during Wink mode Yellow Comm LED The yellow comm LED blinks at the rate the controller receives communication The yellow LED does not blink when the controller is transmitting communication data Refer to Table 38 Table 38 Yellow comm LED activity LED activity Description Off continuously The controller is not detecting any communication Normal for standalone applications LED blinks or flickers The controller detects communication Normal for communicating applications including data sharing LED on continuously Abnormal condition or extremely high traffic on the link High traffic on the link Note Ifthe service push button is held down for more than 15 s
27. 7 COMMUNICATION WIRE MUST BETRANE PART NO BLK 400 20 28 OR WINDY CITY OR CONNECT AIR LEVEL 4 CABLE MAXIMUM OF 4500 FOOT GE Co nur TO s eis A FOR ADDITIONAL INFORMATION REFERTO 88 1 2 EXHAUST FAN CONTROL RELAY 8 m Low TRTI DISCHARGE AIRTEMP SENSOR 33 2 BLK BLK 5 7RT3 OUTSIDE AIRTEMP SENSOR 35 HI 756 FUSED DISCONNECT SWITCH 3 58 BLK 13 ZONE SENSOR MODULE 20 P PLUG CONNECTOR BRN 3 JACK CONNECTOR 16 LW m 4 WIBLK 11 ro YEL 112 BILK 75VA 11 Z c pg 1 112 D WHT ny 1U1 141 18 7 t TB1 124V POWER GNDTB1 2 9 lt 8 20 m 17A BL 1 HIGH SPEED ZONETB amp 4 p j1 ZONE 1K1 10 12 1TB1 L1 1 Lel ll AMAIYEL lt lt 2 EXHAUST GNDTB amp 2 d2 10 1 1 2 12 2 5 p 43 CSP Tet T2 18 5 42 6 2 1P22 29 A241 Lg COOLING 2112 3220 aps FANTB2 4 0 d4 FAN SWITCH f24 J1P2 3 5P3 3 5 4 3 1B BA c LE ESC 38 29 1988 7955 C 6 TBA 1K3 23 24 abs 83 Glis n 2 b d6 COMM LOW 287 1 5 7 1 5 7 2 tPe2 1 5 6 25 a Ed ERMMON STAGE 1 ET 152 pi 9 SAE p 48 CO
28. At the beginning of step 2 the controller attempts to clear all diagnostics b Tracer ZNO10 and ZN510 have a binary output default as none on J 1 from the factory If the unit has a 2 speed fan step 3 will energize the low fan speed If the unit has a single speed fan step 3 will continue to energize the high fan speed This binary output can be reconfigured as an exhaust fan with the use of Rover software c After the fresh air damper step the test sequence performs the exit step This initiates a reset and attempts to return the controller to normal operation d For all 1 heat 1 cool applications including 2 pipe changeover the cooling and heat test stage energize This occurs even though during normal 2 pipe changeover operation binary output controls the unit valve for both cooling and heating Table 40 Tracer ZN520 test sequence Main Electric heat or Fresh air Fan valve aux valve damper Generic baseboard heat Step 31 1 31 2 31 3 31 5 31 6 31 9 31 10 31 11 31 12 TB4 1 1 Off Off Off Off On Off aux on Off On Off EH off 2 Fan high b High Off Off Off Off Off Off Off Off Off 3 9 Off Off Off Off Off Off Off Off Off 4 Fan low Off Off Low Off Off Off Off Off Off Off 5 Main open High Off Off On Off Off Off Off Off Off 6 Main close EH1 on High Off Off Off On On Off Off Off Off 7 Aux open High Exh Q Off Off Off On Off Off Off Off EH1 on 8 Aux close damper open High Off Off
29. Binary input 4 fan status Tracer ZN520 only Note The generic binary input be used with a Tracer Summit building automation system only BIP1 Low Temperature Detection Option The factory hard wires the low temperature detection sensor to binary input 1 BIP1 on the Tracer ZN controller The sensor defaults normally closed N C and will trip off the unit on alow BCXC SVX01B EN 57 58 temperature diagnostic when detecting low temperature In addition Tracer ZN controls unit devices as listed below Fan Off Valves Open Electric heat Off Damper Closed Note See the Diagnostics section for more information BIP2 Condensate Overflow Detection Option The factory hard wires the condensate overflow sensor to binary input 2 BIP2 on the Tracer ZN controller The sensor defaults normally closed N C and will trip off the unit on a condensate overflow diagnostic if condensate reaches the trip point In addition Tracer ZN controls unit devices as listed below Fan Off Valves Closed Electric heat Off BIP3 Occupancy Sensor Binary input 3 BIP3 on Tracer ZN is available for field wiring an occupancy sensor such as a binary switch or a timeclock to detect occupancy The sensor can be either normally open or normally closed Reference Table 27 p 58 BIP4 Fan Status ZN520 Only Binary input 4 4 on Tracer ZN is available for sensor such as a binary switch or a timeclock
30. HEAT CONTROL BOX 1TB1 L1 L2 CONTROL TERMINAL BLOCK 3 ALL FIELD WIRING MUST BE IN ACCORDANCE WITH THE im m mi NATIONAL ELECTRIC CODE NEC STATE AND na 7 FIELD INSTALLED DEVICE 101 COMFORT LINK CONTROLLER 18 dem REQUIREMENTS LY Y Y4 281 SUPPLY FAN MOTOR 11 4 NUMBERS ALONG THE RIGHT SIDE OF THE SCHEMATIC 5 DESIGNATE THE LOCATION OF CONTACTS BY LINE NUMBER 282 CONDENSATE OVERFLOW SWITCH 32 lt 5 SUPPLIED CONTROL RELAYS POWERED BY THIS UNIT 6 UST BE PILOT DUTY RATED 24VAC COIL 6VA MAX 255 FAN STATUS SWITCH 36 257 ELECTRIC HT LOCKOUT SWITCH 23 6 WIRING TO ZONE SENSOR MUST 16 22 AWG CU ISTED ELECTRIC HEAT BRING Te Sas ARD NO MORI RE TA MB CONTROL BOX 4U4 MIXING_BOX DAMPER ACTUATOR 27 to SHIELD MUST BE GROUNDED AT UCM END END CHASSIS AND 5B2 MAIN COIL VALVE MOTOR 23 TAPED AT THE OTHER END IF INSTALLED IN CONDUIT DO NOT INSTALL WIRES IN CONDUIT THAT CONTAINS WIRES 24VAC 8 OR HIGH VOLTAGE POWER WIRES 1 COMMUNICATION Re MUST BE TRANE PART NO 8 00 20 28 UM CITY OR CONNECT AIR EL 4 SABLE MAXIMUM OF 4500 FOOT 1K1 AGGREGATE RUN L1 BLK RED 4A 7 5 EXHAUST FAN CONTROL RELAY 21 9 E OR WINE BUND POR oM UNI AMEN LINK T 281 FOR INFORMATION REFER YO EMIX EB 06 L2BLK ME M 7RTi DISCHARGE AIR TEMP SENSOR 33 11 lt B BLUE CONNECTORS USED FOR COOLING CIRCUIT M aN 208 SEE E RED CONNECT
31. He Rete HTG Te2 5p 45 COMM HI ELECTRIC HEAT 26 CONTROL BOX TB2 4 b 47 705 cM 7 z _ 12A PNK lt e f7 DAMPER TB2 3 b 24 3 1P1 1 lt e SPLICE AND a INSULATE SHIELDS 28 T82 2 8 47 ts TRACER 29 eee conn lt Hazardous Voltage PME 2 1 Bop BI 2 Disconnect all electric power including RS des CONDENSATE 24A PUR GREEN PLUG remote disconnects before servicing Follow AI 2 DAT proper lockout tagout procedures to ensure LL 443 4 42 8 E h be inad Bis 966 uNoco OR FIELD RECONFIGURED the power can not be inadvertently AS GENERIC energized Failure to disconnect power before hon ausi CEDE ME dieses servicing could result in death or serious injury NOTICE Use copper conductors only Unit terminals are not designed to accept other conductor types Failure to use copper conductors could cause equipment damage BCXC SVX01B EN 81 e TRANE Wiring Diagrams Four Pipe BCXC with Tracer ZN510 e 208 volt 3 phase e 2 valves e 2 position damper e condensate overflow low limit protection e wall mounted zone sensor NOTE
32. LoW 5B3 COMM M 1 1 L 5 5 1 p sPLcEYEL N ORG 5 5 2 1P4 2 Eb ee 25 1781 1010 1J4 1 XE 09 7252 TRES 1815 6 HTG TB2 5 d5 COMM HI 8 28 82 4 9 17 sHC UGER 705 COM 7 I COMM OUT 27 L 12A PNK lt 17 DAMPER 2 3 1P1 7 ue AND INSULATE SHIELDS 28 2 29 423 0 R s COME enn 21 22 50 COMM 2 HIC 30 92 1 2 1ACGRAD 233 BI 1 n FRZ STAT 22A GRA 2 A WARNING 23A PUR 2P7 1 252 B 2 7 2 Hazardous Voltage Wu cw azardous Vo age E ME gt S4A BRN 125 CONDENSATE 24A PUR Disconnect all electric power including 2 z3 p AI 2 DAT remote disconnects before servicing Follow 2 2 C Da us 4 2 5 3 BI 3 OCC UNOCC OR FIELD RECONFIGURED E proper lockout tagout procedures to ensure ied AS GENERIC E UU QUID RUN the power can not be inadvertently _ energized Failure to disconnect power before servicing could result in death or serious 37 injury NOTICE 39 Use copper conductors only i Unit terminals are not designed to accept other conductor types Failure to use copper 4 conductors could cause equipment damage 82 BCXC SVX01B EN e TRANE Wiring Diagrams Four Pipe BCXC with Tracer ZN510 e 115 vo
33. Off Off Off On On Off Off EH1 off EH2 on 9 Damper close High Off Off Off Off Off Off Off On Off 10 Generic baseboard heat energized High Off Off Off Off Off Off Off Off On 11 Exit e Exit a Upon entering manual output test mode the controller turns off all fan and electric heat outputs and drives b At the beginning of step 2 the controller attempts to clear all diagnostics c The low fan speed output energizes at step 3 If the unit is configured for a 1 speed fan the fan remains on high speed at step 3 d If the unit is configured for a 1 or 2 speed fan and BOP2 is configured for an exhaust fan the exhaust fan output energizes on step 7 The exhaust fan output is shared with medium speed e After step 10 the test sequence performs an exit This initiates a reset and attempts to return the controller to normal operation Diagnostics Translating Multiple Diagnostics The controller senses and records each diagnostic independently of other diagnostics It is possible to have multiple diagnostics present simultaneously The diagnostics are reported in the orderthey occur Possible diagnostics include 74 BCXC SVX01B EN e TRANE Diagnostics e Low temperature detection e Condensate overflow e Low air flow fan status e Discharge air temp limit e Space temperature failure e Entering water temp failure e Discharge air temp failure e Outdoor air temp failure Local setpoint failure e Local fa
34. Table 18 Occupancy sensor state Sensor type Sensor position Unit occupancy mode Normally open Open Occupied Normally open Closed Unoccupied Normally closed Open Unoccupied Normally closed Closed Occupied Acommunicated request will control the controller s occupancy Typically this request comes from the BAS time of day scheduling to the controller However if a communication request from a BAS or peer controller is lost the controller reverts to the default operating mode occupied after 15 minutes configurable specified by the receive heartbeat time if no local hardwired occupancy signal exists If the unit is communicating with Tracer Summit and the supply fan control programming point is configured for Tracer the factory configures as local then Tracer Summit will control the fan regardless of the fan mode switch position For complete information about Tracer Summit application setup using the Tracer ZN controller see the Tracer Summit product literature For more information on the setup of another BAS refer to the product specific literature from that manufacturer Occupied Mode When the controller is in the occupied mode the unit attempts to maintain the space temperature at the active occupied heating or cooling setpoint based on the e measured space temperature e discharge air temperature Tracer ZN520 only e the active setpoint and e the proportional integral control
35. are controlled based on the cooling capacity output Note Economizer dampers and modulating valves are only available on units with the Tracer ZN520 controller Two position dampers are only available on units with Tracer ZN010 and ZN510 Cooling output is controlled based on the cooling capacity At 0 capacity all cooling capacities are off and the damper is at minimum position Between 0 and 100 capacity the cooling outputs are controlled according to modulating valve logic Tracer ZN520 only or cycled with 2 position valves As the load increases modulating outputs open further and binary outputs are energized longer At 100 capacity the cooling valve or damper is fully open modulating valves or on continuously 2 position valves BCXC SVX01B EN BCXC SVX01B EN Note Unit diagnostics can affect fan operation causing occupied and occupied standby fan operation to be defined as abnormal Refer to Troubleshooting 72 for more information about abnormal fan operation Economizer Cooling Tracer ZN520 Only The economizer provides cooling whenever the outdoor temperature is below the economizer enable setpoint and there is a need for cooling The economizer operates to meet the space demand with other forms of cooling enabling when the economizer cannot meet the demand alone See economizer air damper operation for additional information DX Cooling Tracer ZN520 only The controller does not use both the DX
36. coil weight Ib 18 2 21 8 31 5 46 1 87 8 105 6 137 0 Internal volume in3 99 7 121 8 188 3 276 9 620 4 745 9 983 1 e Steam coil data Area ft 0 71 0 88 1 75 2 75 4 13 5 13 6 83 Width in a 6 6 12 12 18 18 24 Length in 9 17 21 21 33 33 41 41 Velocity ft min 26 25 18 17 17 16 16 1 row coil 3 3 5 5 14 14 9 Minimum steam press psig 2 0 20 2 0 2 0 2 0 2 0 2 0 Maximum steam press psig 15 0 15 0 15 0 15 0 15 0 15 0 15 0 Dry coil weight Ib 16 7 18 7 32 5 41 1 57 4 64 8 84 9 Wet coil weight Ib 18 2 20 4 36 0 45 8 64 5 73 2 96 1 Internal volume in3 41 7 47 7 95 3 130 8 196 1 231 6 308 7 a Coil width Length in the direction of a coil header typically vertical b Hydronic and DX coil data width dimensions apply only to DX coils all unit sizes 1 row standard ca pacity hydronic coils unit sizes 012 through 036 and 4 and 6 row standard capacity hydronic coils 54 through 90 c Coil length Length of coil in direction of the coil tubes typically horizontal and perpendicular to airflow d High capacity hydronic coil data width dimensions apply only to 1 row standard capacity hydronic coils unit sizes 054 through 090 and 2 4 and 6 row high capacity hydronic coils all unit sizes e The minimum waterflow at 1 5 fps tubeside velocity is to ensure the coil self vents properly There is no minimum waterflow limit for coils that do not require self venting f Maximum gpm limits are to prevent erosion an
37. ensure the power can not be inadvertently energized Failure to disconnect power before servicing could result in death or serious injury NOTICE Use copper conductors only Unit terminals are not designed to accept other conductor types Failure to use copper conductors could cause equipment damage 88 BCXC SVX01B EN e TRANE Wiring Diagrams Four Pipe BCXC with Control Interface e 115 volt 1 phase 2 position damper e 2 speed motor e condensate overflow low limit protection NOTES 1 UNLESS OTHERWISE NOTED ALL SWITCHES ARE SHO D EN ween Co mes TE 1 OPE AND AFTER A NORMAL SHUTDOWN HAS OCCURED 1 CONTROL PANEL DESIGNATION DESCRIPTION NUMBER 2 DASHED LINES INDICATE FIL 2 SUPPLY FAN AND COIL SECTION 1CBi TRANSFORMER CIRCUIT BREAKER 16 2 BY OTHERS DASHED LINE EN 210 RES 045 SHED fof np 3 1 1 2 SUPPLY FAN CONTACTOR 20 22 Ll 4 MIXING BOX SECTION 151 MANUAL DISCONNECT SWITCH 7 BY HE FIELD SOLID LINES DICE WING BY gc TRANE 3 5 EXTERNAL PIPING iri CONTROL POWER TRANSFORMER 16 1 tj 756 6 1TB2 1TB5 CONTROL TERMINAL BLOCK 3 ALL FIELD WIRING MUST BE IN ACCORDANCE WITH THE 1 mi NATIONAL ere CODE 125 STATE AND Tm AL 7
38. entire refrigerant charge e Access port The access port allows the unit to be charged with liquid refrigerant and is used to determine subcooling This port is usually a Schraeder valve with a core e Solenoid valve If required by the compressor unit install the solenoid valve between the filter drier and sight glass NOTICE Valve Damage Disassemble the thermal expansion valve before completing the brazing connections If necessary wrap the valve in a cool wet cloth while brazing Failure to protect the valve from high temperatures could damage internal components Suction Line Line sizing Properly sizing the suction line is critical for ensuring that the oil returns to the compressor throughout the system operating envelope If provided use the suction line size s recommended by the manufacturer of the compressor unit The selected tube diameter s must maintain adequate refrigerant velocities at all operating conditions 39 e TRANE Installation Piping Routing To prevent residual or condensed refrigerant from free flowing toward the compressor install the suction line so it slopes slightly 1 inch per 10 feet of run 1 cm per 3 m toward the evaporator Avoid putting refrigerant lines underground Refrigerant condensation installation debris inside the line service access and abrasion corrosion can quickly impair system reliability Insulation After operating the system and testing all fittings and joint
39. listed in 2 eel interface option is the wiring tied back to a terminal strip to be controlled by a field supplied controller 3 Units with a DX coil are provided with a DX cool relay if unit has the control interface or Tracer controls 4 Contact the factory for recommendations regarding steam coil valve selections compatible with Tracer ZN controllers BCXC SVX01B EN 45 S TRANE Pre Start Pre Start Checklist 46 Complete this checklist after installing the unit to verify all recommended installation procedures are complete before unit startup This does not replace the detailed instructions in the appropriate sections of this manual Disconnect electrical power before performing this checklist Always read the entire section carefully to become familiar with the procedures A WARNING Hazardous Voltage Disconnect all electric power including remote disconnects before servicing Follow proper lockout tagout procedures to ensure the power can not be inadvertently energized Failure to disconnect power before servicing could result in death or serious injury Receiving O Inspect unit and components for shipping damage File damage claims immediately with the delivering carrier O Check unit for missing material Look for ship with drives isolators filters and sensors that are packaged separately and placed inside the main control panel fan section or compressor section see Receiving and Handling p 11 Chec
40. off is communicated to the controller the unit controls the fan to off The unit is not capable of heating or cooling when the controller is in this mode A specific list of diagnostics affects fan operation For more information see Table 41 p 77 and Table 42 p 77 If the controller does not have power the unit fan does not operate For the Tracer ZN controller to operate normally it must have an input voltage of 24 VAC When the green LED is off continuously the controller does not have sufficient power or has failed The controller must be properly configured based on the actual installed end devices and application When the unit configuration does not match the actual end devices the valves may not work correctly The controller includes a manual output test sequence to verify binary output operation and the associated wiring However based on the current step in the test sequence the unit fan may not be powered on Refer to Manual Output Test p 73 The wiring between the controller outputs and the fan relays and contacts must be present and correct for normal fan operation Refer to the specific unit wiring diagrams on the unit Table 44 Valves stay closed Probable cause Explanation Normal operation Requested mode off Valve override Manual output test Diagnostic present Sampling logic Unit configuration No power to the controller Unit wiring The controller opens and closes
41. on the zone sensor When the controller is in unoccupied mode pressing the on button will place the controller into occupied bypass mode for the duration of the bypass time typically 120 minutes Tracer Summit With Supply Fan Control Tracer ZN510 or ZN520 Only All Tracer ZN lockouts latching diagnostics are manually reset whenever the fan mode switch is set to the off position or when power is restored to the unit The last diagnostic to occur is retained until the unit power is disconnected Refer to Trane publication CNT SVX04A EN Installation Operation and Programming Guide for specific Tracer ZN520 operating procedures Cooling Operation 50 During cooling mode the Tracer ZN controller attempts to maintain the space temperature at the active cooling setpoint Based on the controller s occupancy mode the active cooling setpoint is either the e occupied cooling setpoint e occupied standby cooling setpoint Tracer ZN510 or ZN520 only or unoccupied cooling setpoint The controller uses the measured space temperature the active cooling setpoint and discharge air temperature Tracer ZN520 only along with the control algorithm to determine the requested cooling capacity of the unit 0 100956 The outputs are controlled based on the unit configuration and the required cooling capacity To maintain space temperature control the cooling outputs modulating or 2 position hydronic valve or economizer damper
42. still present two blinks Manual Output Test Procedure Follow the procedure below to test the Tracer 2 010 ZN510 or ZN520 controller 1 Press and hold the Test button for at least two seconds not exceeding five seconds and then release to start the test mode The test sequence will turn off all outputs and then attempt to clear all diagnostics Press the Test button several more times no more than once per second to advance through the test sequence The outputs are not subject to minimum times during the test sequence However the test sequence only permits one step per second which limits minimum output time The green LED is turned off when the Test button is pressed To begin the manual output test mode press and hold the Test button turning off the green LED for at least two seconds The green LED will begin to blink indicating the controller is in test mode 73 e TRANE Diagnostics Table 39 Tracer ZN010 and ZN510 test sequence for 1 heat 1 cool configurations Fan Cool output Heat output Damper Steps J1 1 31 3 31 31 31 1 Off Off Off Off Closed 2 Fan high High Off Off Closed 3 Exhaust fan b Off Off Closed 4 Fan Low Off Off Closed 5 Cool High On Off Closed 6 Heat High Off On Closed 7 Two position damper High Off Off Open 8 Exit d Note The 2 position damper energizes during this step if the controller is configured for a 2 position damper a
43. the valves to meet the unit capacity requirements It is possible to communicate the operating mode such as off heat and cool to the controller When off is communicated to the controller the unit controls the fan to off The unit is not capable of heating or cooling when the controller is in this mode The controller can communicate a valve override request This request affects the valve operation The controller includes a manual output test sequence to verify analog and binary output operation and the associated wiring However based on the current step in the test sequence the valves may not be open Refer to the Manual Output Test p 73 A specific list of diagnostics affects valve operation For more information see Table 41 p 77 and Table 42 p 77 The controller includes entering water temperature sampling logic that automatically invokes during 2 pipe or 4 pipe changeover It determines when the entering water temperature is either too cool or too hot for the desired heating or cooling mode Refer to Entering Water Temperature Sampling Function p 55 The controller must be properly configured based on the actual installed end devices and application When the unit configuration does not match the actual end device the valves may not work correctly If the controller does not have power the unit fan does not operate For the Tracer ZNO10 510 controller to operate normally it must have an input voltage of 24 VA
44. to the unit Similar to hardwired setpoints the effective setpoint value for a communicated setpoint is determined based on the stored default setpoints which determines the occupied and occupied standby temperature deadbands and the controller s occupancy mode Fan Switch The zone sensor fan switch provides the controller with an occupied and occupied standby fan request signal Off Low High Auto If the fan control request is communicated to the controller the controller ignores the hardwired fan switch input and uses the communicated value The zone sensor fan switch input can be enabled or disabled through configuration using the Rover service tool If the zone sensor switch is disabled the controller resorts to its stored configuration default fan speeds for heating and cooling unless the controller receives a communicated fan input 61 62 When the fan switch is in the off position the controller does not control any unit capacity The unit remains powered and all outputs drive to the closed position Upon a loss of signal on the fan speed input the controller reports a diagnostic and reverts to using the default fan speed On Cancel Buttons Momentarily pressing the on button during unoccupied mode places the controller in occupied bypass mode for 120 minutes You can adjust the number of minutes in the unit controller configuration using Rover service tool The controller remains in occupied bypass mode until the
45. unit will assume different ground potentials e Do not run power in the same conduit or wire bundle with communication link wiring Service Communication Wiring Establish service communication using Rover service software connected to the Tracer ZN controller using a twisted wire pair to one of the following connection points e Remote zone sensor module e Connections on the board This allows the technician to view and edit the Tracer controller configuration and troubleshoot the unit Note Unit control options and field wiring practices may limit the controller s communication ability Route interconnecting wiring from the Tracer controller to provide service communication at the wall mounted zone sensor module Install wiring by referencing the unit wiring diagram and Table 12 p 29 for appropriate wire sizes After wiring is complete connect the communication cable provided with the Rover service tool to the telephone style RJ11 connection on the zone sensor module Attach the other end of the cable to a computer running Trane Rover software to communicate Zone Sensors Without Interconnecting Wiring Establish service communication to the Tracer ZN controller by wiring directly to the board inside the control box Refer to the unit wiring diagram for appropriate communication terminals on the board Once wiring is complete Use Trane Rover software to communicate to the Tracer ZN controller Tracer Communi
46. 0 1 5 2 0 2 5 3 0 3 5 4 0 4 5 5 0 5 5 6 0 6 5 7 0 7 5 8 0 9 0 10 0 11 0 12 0 13 0 14 0 15 0 16 0 17 0 18 0 19 0 20 0 21 0 22 0 24 0 26 0 28 0 30 0 Magnetic contactors are standard Mercury contactors are available on horizontal units only Units with electric heat are available with or without door interlocking disconnect switch Units with electric heat are available with or without line fuses Electric heat is balanced staging 1 stage 100 2 stages 5096 5096 Electric heat is not available on 190 50 3 units For two speed units not being controlled by the Tracer family of controls a 0 2 second delay for speed switching needs to be incorporated into the control sequence ONOURUN Units with electric heat must not be run below the minimum cfm listed in the general data section BCXC SVX01B EN e TRANE Installation Electrical Table 14 Motor electrical data Voltage Voltage range rpm Rated hp Ib FLA LRA 115 60 1 104 126 1750 1 3 18 5 8 22 8 1 2 21 7 2 30 4 3 4 29 12 0 58 4 1 0 29 12 8 58 4 Two speed 115 60 1 104 126 1750 1160 3 4 40 8 9 6 1 42 0 1 0 41 11 5 8 1 58 2 208 230 60 1 187 253 1750 1 3 18 3 1 11 4 1 2 21 3 6 15 2 3 4 29 6 0 29 2 1 0 29 6 4 29 2 277 60 1 249 305 1750 1 3 15 5 2 5 12 1 1 2 21 5 3 6 19 3 3 4 25 4 3 25 3 1 0 29 5 6 32 6 208 60 3 187 229 1750 1 2 22 2 3 11 4 3 4 26 2 9 15 9 1 0 28 3 5 20 2 1 5 29 4 8 30 0 2 0 34 6 2 38 5 3 0
47. 245 728 1031 AK46x3 4 10070172 20 A39 X10200254140 1000 1417 829 1174 AK39x3 4 10070172700 A38 X10200254130 1200 1700 994 1409 AK34x3 4 10070172640 A37 X10200254120 1313 1859 1088 1541 AK28x3 4 10070172440 A36 X10200254110 1615 2288 1338 1896 1492 2238 2 and 3 1VM50x5 8 10090082170 94 3 4 10070173630 48 X10200254230 678 877 562 727 3 a 1VM50x7 8 10090082190 84 3 4 X10070173450 A46 X10200254210 765 990 634 820 AK74x3 4 10070173270 45 X10200254200 878 1136 727 941 AK64x3 4 10070173030 43 10200254180 1029 1332 853 1104 AK54x3 4 X10070172C40 A41 X10200254160 1245 1611 1031 1335 AK46x3 4 X10070172A20 A40 X10200254150 1174 1519 54 72 186 1119 1 3 to 1 1 2 1VL40x5 8 10090082090 AK114x3 4 X10070173A30 A53 X10200254280 390 552 323 457 AK94x3 4 10070173630 50 X10200254250 478 678 396 562 AK84x3 4 10070173450 A48 X10200254230 540 765 447 634 AK74x3 4 10070173270 A46 X10200254210 619 878 513 727 AK64x3 4 X10070173030 A45 X10200254200 727 1029 602 853 AK54x3 4 X10070172C40 A43 X10200254180 879 1245 728 1031 AK46x3 4 10070172 20 A41 X10200254160 1000 1417 829 1174 AK39x3 4 X10070172700 A40 X10200254150 1200 1700 994 1409 AK34x3 4 10070172640 A40 X10200254150 1313 1859 1088 1541 1492 2238 2and3 50 5 8 X10090082170 AK94x3 4 10070173630 A51 X10200254260 678 877 562 727 3 a 1VM50x7 8 X10090082190 84 3 4 2X10070173450 49 10200254240 765 990 634 820 AK74x3 4 10070173270 A48 X1020025
48. 40 14 0 kW 030 3 0 kW 150 15 0 kW 035 3 5kW 160 16 0 kW 040 4 0kW 170 170kW 045 45kW 180 18 0 kW 050 5 0 kW 190 19 0 kW 055 5 5 kW 200 20 0 060 6 0 kW 210 210 kW 065 6 5 kW 220 22 0 070 70kW 240 24 0 kW 075 75 260 26 0 kW 080 8 0 kW 280 28 0 kW 090 9 0 kW 300 30 0 kW Digit 22 Electric Heat Controls 0 none A 24volt magnetic contactors B 24volt mercury contactors Digit 23 Electric Heat Options 0 none A electric heat with heater fuse electric heat interlocking non fused disconnect A amp B e TRANE Model Number Description Digit 24 Filters 0 none A 1 throwaway B 2 pleated throwaway Digit 25 Accessory Section 0 none A mixing box only B angle filter box C angle filter mixing box D top access filter box E bottom access filter F A amp D L C amp H G A amp E D amp H steamcoil N E amp H J A amp H P A D amp H K B amp H R A E amp H Digit 26 Control Type 0 nocontrols 4 x 4 junction box 1 control interface 2 Tracer ZNO10 3 Tracer ZN510 4 Tracer ZN520 Digit 27 Unit Coil 1 Control Valve none 2 way 2 position n c 2 way 2 position n o 3 way 2 position n c 3 way 2 position n o 2 way modulating 3 way modulating field supplied valve 2 pos n c field supplied valve 2 pos n o field supplied modulat
49. 4230 878 1136 727 941 AK64x3 4 10070173030 A46 X10200254210 1029 1332 853 1104 AK54x3 4 X10070172C40 45 10200254200 1245 1611 1031 1335 AK46x3 4 10070172 20 43 10200254180 1174 1519 90 186 1119 1 3 to 11 2 40 5 8 X10090082090 AKII4x3 4 X10070173A30 59 X10200254340 390 552 323 457 AK94x3 4 10070173630 A56 X10200254310 478 678 396 562 AK84x3 4 10070173450 53 X10200254280 540 765 447 634 AK74x3 4 10070173270 A53 X10200254280 619 878 513 727 AK64x3 4 10070173030 A50 X10200254250 727 1029 602 853 54 3 4 X10070172C40 A49 X10200254240 879 1245 728 1031 46 3 4 10070172 20 A48 X10200254230 1000 1417 829 1174 AK39x3 4 10070172700 A46 X10200254210 1200 1700 994 1409 AK34x3 4 10070172640 A46 X10200254210 1313 1859 1088 1541 1492 2238 2 and 3987 IVM50 X 5 8 X10090082170 AK94x3 4 X10070173630 A56 X10200254310 678 877 562 727 3 1VM50 X 7 8 X10090082190 AK84x3 4 10070173450 A56 X10200254310 765 990 634 820 AK74x3 4 10070173270 53 X10200254280 878 1136 727 941 AK64x3 4 10070173030 53 10200254280 1029 1332 853 1104 AK54x3 4 X10070172C40 50 10200254250 1245 1611 1031 1335 AK46x3 4 10070172 20 49 10200254240 1174 1519 APVZEM TAOMmMVIVOAOWDAWVZSZHH TATOMMIVIOWPFAWDWDVZSEHAAT TOA MmAMVOVWDA 9 a 2 hp 60 Hz motors have 5 8 bore sheaves 2 hp 50 Hz motors have 7 8 bore sheaves All 3 hp motors have 7 8 bore sheaves with the exception of 575V which has the 5 8
50. 49 8 6 55 1 230 60 3 207 253 1750 1 2 22 2 4 12 8 3 4 26 3 0 18 6 1 0 28 3 6 23 0 1 5 29 4 8 33 4 2 0 34 6 2 43 6 3 0 49 8 6 62 0 460 60 3 414 506 1750 1 2 22 1 2 6 4 3 4 26 1 5 9 3 1 0 28 1 8 11 5 1 5 29 2 4 16 7 2 0 34 3 1 21 8 3 0 49 4 3 31 0 575 60 3 518 632 1750 3 4 20 5 1 1 7 5 1 0 22 5 1 4 9 0 1 5 31 1 9 13 3 2 0 36 2 5 17 9 3 0 49 3 3 23 7 Note For two speed units not being controlled by the Tracer family of controls a 0 2 second delay for speed switching needs to be incorporated into the control sequence BCXC SVX01B EN 31 e TRANE Installation Electrical Table 14 Motor electrical data continued Voltage Voltage range rpm Rated hp Ib FLA LRA 220 50 1 198 242 1450 1 3 20 5 3 0 15 6 1 2 25 3 6 20 5 3 4 29 5 2 25 6 1 0 38 9 3 52 2 240 50 1 216 264 1450 1 3 20 5 3 3 17 1 1 2 25 4 0 22 7 3 4 29 5 5 39 1 1 0 38 10 6 57 8 190 50 3 171 209 1450 1 3 22 1 1 5 6 380 50 3 342 418 1 2 26 1 4 7 8 3 4 28 1 7 9 8 1 0 29 2 1 14 6 1 5 34 2 8 18 7 2 0 49 3 6 27 2 415 50 3 374 456 1450 1 3 22 1 2 6 8 1 2 26 1 5 9 4 3 4 28 1 9 11 0 1 0 29 2 5 17 4 1 5 34 3 1 22 6 2 0 49 3 6 32 3 Note For two speed units not being controlled by the Tracer family of controls a 0 2 second delay for speed switching needs to be incorporated into the control sequence 32 BCXC SVX01B EN TRANE Installation Mechanical WARNING Hazardous Voltage Disconnect all electric power including remote disc
51. 5P10 2 20102 1211 2 ma VS BO enc ete pM RTI LU CONDENSATE Hazardous Vo Itage osi aM 4 qaa J24 1 2 DAT Disconnect all electric power including B____ _35A BRN 15 22 22 a remote disconnects before servicing Follow mut MES OR MELD RECONFIGURED proper lockout tagout procedures to ensure _______ d 335 d E the power can not be inadvertently 25 energized Failure to disconnect power before 338 servicing could result in death or serious injury Use copper conductors only Unit terminals are not designed to accept other conductor types Failure to use copper conductors could cause equipment damage BCXC SVX01B EN 91 c UL us e TRANE Literature Order Number BCXC SVX01B EN Date April 2008 Supersedes BCXC SVX01A EN September 2002 www trane com For more information contact your local Trane T h li f 1 d d he righ office or e mail us at comfort trane com rane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice
52. AT THE END IF INSTALLED IN CONDU NOT INSTALL WIRES IN CONDUIT THAT CONTAINS WIRES 24VAC OR HIGH VOLTAGE POWER ee ea 9 lt 7 COMMUNICATION WIRE MUST BE TRANE PART NO Aveta CASE MAXIMUM OF 4500 FOOT ft 10 AE ELTE 4 L1 RED 4A 2M1 7K5 EXHAUST FAN CONTROL RELAY 21 CAUTION NOT RUN POWER IN THE CONDUIT oR WIRE BUI COMMUNI LINK 1K1 7RT1 DISCHARGE AIR TEMP SENSOR 33 11 22 FOR ADDITIONAL INFORMATION REFER TO 68 i L2 BLK 5 lt B BLUE CONNECTORS USED FOR COOLING CIRCUIT Kt 756 FUSED DISCONNECT SWITCH 3 12 SEDE WIRES USED FOR COOLING CIRCUIT RED L3 j WIRES USED FOR HEATING CIRCUI RN 705 OUTSIDE AR DAMPER ACTUATOR 21 BLK 706 ZONE SENSOR MODULE 20 13 PLUG CONNECTOR 4 CONNECTOR RED 15 TU J W BLK 4881 BLU oy YEL 178112 B GRN 75 11 5 1 1 12 D WHT 2n GK D 18 seio 9781 1 24V POWER GND TB1 2 19 wx TUE 1 17A BLK 20 1 HIGH SPEED ONE TB3 1p 1 ZONE 1K1 10 12 elle y T ZON b d1 ZONI 2 14A YEL 2155 cid 181552 EXHAUST GND 2 d2 COM 22 SET TB3 3p 43 csP 582 K J SPA 0 SPUCEBLU BLK SPE 565 2 180 2 c 5 ON OFF CLG FAN 3 4 4 FAN SWITCH 1181 1410 273 16 TGA 2 2 Ez wis AN b d4 FAN SW 1 2 3 5P3 3 SPICE K 4 BRN 24 13 3 73 36 megs 8 d6 COMM LOW 287 BRN ORG 15C ORG 25 Bp 11 1 DTE COMMON
53. Access Filter Box Table 5 Bottom or top access filter box dimensions in and weights Ib FILTER AIR FLOW right side view 174 FILTER ACCESS PANEL FILTER AIR FLOW top view NOTES 1 DIMENSIONS ARE IN INCHES 2 ROTATE 180 FOR TOP ACCESS 3 SECTIONS SHIPS ATTACHED TO THE UNIT Unit size H Ww A B Weight 12 14 00 24 00 9 98 2 01 18 23 2 88 15 18 14 00 28 00 9 98 2 01 21 98 3 01 17 24 18 00 28 00 14 23 1 89 23 23 2 38 18 36 18 00 40 00 14 23 1 89 33 73 3 13 25 54 22 00 40 00 18 23 1 89 33 73 3 13 28 72 22 00 48 00 18 23 1 89 42 73 2 63 32 90 28 00 48 00 23 23 1 89 41 23 3 38 37 18 BCXC SVX01B EN Electric Heat MOUNTING FLANGE TOP amp BOTTOM UNIT SIZES 12 18 24 amp 36 TOP ONLY UNIT SIZES 54 72 amp 90 top view CONTROL PANEL DOOR 1 00 e D 8 6 63 4 1 00 56 DUCT OPENING 4 38 1 32 1 875 DIA HOLE FOR CUSTOMER ELECTRICAL DUCT CONNECTION OPENING H 00 front view 1 00 MOUNTING FLANGE BOTTOM right side view UNIT SIZES 54 72 amp 90 NOTES ALL DIMENSIONS ARE IN INCHES ELECTRIC HEATER IS FACTORY MOUNTED ON UNIT DISCHARGE FACE amp WIRED TO UNIT CONTROL BOX RIGHT HAND HEATER SHOWN LEFT HAND HEATER IS MIRROR IMAGE OF RIGHT HAND CONTROL PANEL DOOR 15 HINGED BOTTOM ON UNIT SIZES 12 18 24 amp 36 UNIT SIZES 54 72 amp 90 A
54. BP V sPuce AND pe Pl INSULATE SHIELDS 28 TB2 2p 4 4 Toy cw T Bin cn 29 p 4 4 1 BOP T82 1 gAI itg GENERIC BOP GENERIC 30 i 4 2 24V s 3 23 2 7 1 2S2 B 7 2 sp PT 93 257 2 2S Z4A BRN CONDENSATE 24A PUR eee WARNING eae 2 1 43 4 ar ce 1 FIELD RECONFIGURED Hazardous Voltage Site TRIS 8 3 OCC UNOCC AS GENERIC Ape 443 5 42 8 3 Disconnect all electric power including 3 remote disconnects before servicing Follow _ dJ3 6 NEL proper lockout tagout procedures to ensure FAN STAT p 26A YEL Fd the power can not be inadvertently energized Failure to disconnect power before servicing could result in death or serious injury NOTICE Use copper conductors only Unit terminals are not designed to accept other conductor types Failure to use copper conductors could cause equipment damage BCXC SVX01B EN 85 e TRANE Wiring Diagrams Four Pipe BCXC with Tracer ZN520 e 460 volt 3 phase economizer damper e condensate overflow e fan status switch e wall mounted z
55. C When the green LED is off continuously the controller does not have sufficient power or has failed The wiring between the controller outputs and the valve s must be present and correct for normal valve operation Refer to the unit wiring diagrams on the unit 78 BCXC SVX01B EN e TRANE Diagnostics Table 45 Valves stay open Probable cause Explanation Normal operation Valve override Manual output test Diagnostic present Sampling logic Unit configuration Unit wiring The controller opens and closes the valves to meet the unit capacity requirements The controller can communicate a valve override request to affect the valve operation The controller includes a manual output test sequence that verifies analog and binary output operation and the associated wiring However based on the current step in the test sequence the valves may be open Refer to the Manual Output Test p 73 A specific list of diagnostics affects valve operation For more information see Table 41 p 77 and Table 42 p 77 The controller includes entering water temperature sampling logic that automatically invokes during 2 pipe or 4 pipe changeover to determine if the entering water temperature is correct for the unit operating mode Refer to Entering Water Temperature Sampling Function p 55 The controller must be properly configured based on the actual installed end devices and application When the unit config
56. Drive components consist of sheaves belt and motor The coil drain pan and motor drive assembly can easily be field converted from right hand to left hand configurations or vice versa Figure 1 Blower coil air handler unit components model BCHC horizontal unit Knockouts in all four cabinet in 14 18 22 corners for hanger rods and 28 inch heights Forward curved fan BCXC SVX01B EN Main coil with copper tubes and enhanced aluminum fins in 2 4 Unit sizes 12 18 24 36 6 row hydronic or 3 Internal filter frame 54 72 and 90 MBh 4 or 6 row DX accommodates 1 or Galvanized steel 2 inch filters Angle filter option and or mixing box accommodates 2 inch filters Internal 1 or i tor A MN vdd 2 row auxiliary Main and auxiliary interface Tracer selections from coil in preheat drain connections on ZN010 ZN510 390 to 1611 rpm or reheat position same side of unit ZN520 Two four or six row main coils are available for either hydronic cooling or heating Three four or six row direct expansion DX coils are also available for cooling An optional one two four or six row heating coil is available factory installed in either the preheat or reheat position Also a one row preheat steam is available All units have an internal flat filter frame for one or two inch filters An optional angle filter box two inch only mixing box bottom top filter access box or
57. ELS ALL COIL CONNECTIONS LOCATED IN THIS AREA 55 Vr 95 top view 9 61 R H 8 81 LH G 1 00 e w front view 3 4 NOMINAL SCH 40 PVC Table 2 Horizontal blower coil dimensions in and weights Ib Basic Unit G G J J unit size H Ww L A B C D E F RH LH RH LH M P Q weight 12 14 00 24 00 39 75 12 09 18 00 10 56 7 09 0 55 3 00 11 42 13 42 9 42 11 42 4 20 846 9 00 5 75 70 40 18 14 00 28 00 39 75 12 09 22 00 10 56 7 09 0 55 3 00 11 42 13 42 9 42 11 42 4 20 10 46 9 00 5 75 76 10 24 18 00 28 00 44 00 16 09 22 00 13 56 12 56 1 30 3 00 11 42 13 42 9 42 11 42 6 20 7 72 9 00 5 75 98 90 36 18 00 40 00 44 00 16 09 34 00 13 56 12 56 1 30 3 00 11 42 13 42 9 42 11 42 6 20 13 72 9 00 5 75 116 10 54 22 00 40 00 49 00 20 09 34 00 13 56 12 56 0 72 3 00 11 42 13 42 9 42 11 42 7 43 13 72 11 00 7 27 138 90 72 22 00 48 00 49 00 20 09 40 00 13 56 12 56 0 72 4 00 11 42 13 42 9 42 11 42 7 43 17 72 11 00 7 27 152 20 90 28 00 48 00 52 00 26 09 40 00 13 56 12 56 1 66 4 00 12 79 14 79 10 79 12 79 8 24 17 72 11 25 11 64 174 80 BCXC SVX01B EN 15 e TRANE Dimensions and Weights Vertical Blower Coil F B F NOTES ALL DIMENSIONS ARE IN INCHES ALL COIL CONNECTIONS ARE SWEAT STYLE Ne WEIGHT OF BASIC UNIT INCLUDES CABINET FAN 4 X 4 JUNCTION BOX AVERAGE DRIVE WIRING AND AVERAGE FILTER ADD TO BASIC UNIT WEIGHT 9 LBS FOR UNIT CONTROL BOX WEIGHT OF CO
58. END CHASSIS AND 1S d TAPED AT THE OTHER END IF INSTALLED IN CONDUIT DO EQUIPMENT 5B3 AUXILIARY COIL VALVE MOTOR 25 8 NOT INSTALL WIRES IN CONDUIT THAT CONTAINS WIRES 24VAC GROUND OR HIGH VOLTAGE POWER WIRES laa lt 7 COMMUNICATION WIRE MUST BE TRANE PART do tu Vai GP SENS oh is does AGGREGATE RUN 4 ARED 4 2M1 7K5 EXHAUST FAN CONTROL RELAY 21 UTION NOT RUN POWER IN CONDUIT OR WIRE BUNDLE COMMUNICATION LINK 1K1 M 11 FOR ADDITIONAL INFORMATION REFER TO 68 4 A BLK ej fe 5A lt 8 BLUE CONNECTORS USED FOR COOLING CIRCUIT 1 1 SUN 7S6 FUSED DISCONNECT SWITCH 3 USED FOR COOLING CIRCUIT RED A WIRES USED FOR HEATING CIRCUIT GRN 7U5 OUTSIDE AIR DAMPER ACTUATOR 27 BLK 7U6 ZONE SENSOR MODULE 20 13 PLUG CONNECTOR J JACK CONNECTOR 44 RED 15 fT i W BLK 1881 BLU 24 YEL 11 1 75 E D WHT 1U1 GKM BLK 2 5 1181 1510 1 1 24V POWER GND TB1 2 19 1T81 L1 1K1 J1 BLK 17A BLK 1K1 10 12 20 10 1P1 HIGH SPEED ZONE 3 1 41 ZONE d 1 14A YEL 2 EXHAUST GND TB3 2p d2 COM 11 1 41110 16155 22 SET 3 3 43 CSP 5B2 K 1 2 1 J 5P3 1 sPLcEYEL fp ORG SR3 2 1R2 2 mI 23 1181 4110 215 1 TOA 295 2 T 2 2 IPIS ON OFF CLG FAN 4 44 FAN SWITCH 8 24 TB2 6p 46 COMM
59. For more complete information refer to the product literature for the building automation system Rover Service Tool Rover service tool can reset diagnostics in the Tracer ZN520 controller For more complete information refer to the Rover Installation Operation and Programming manual Diagnostic Reset Tracer ZN510 or ZN520 Only Any device that can communicate the network variable nviRequest enumeration clear alarm can reset diagnostics in the Tracer ZN510 or ZN520 controller The controller also attempts to reset diagnostics whenever power is cycled Cycling the Fan Switch Tracer ZN520 Only If the user cycles the fan speed switch from off to any speed the controller resets all diagnostics Diagnostics may recur immediately if the problem still exists The green LED normally indicates whether or not the controller is powered on 24 VAC Trane s Service Tool Rover Rover Trane s service tool can reset diagnostics present in the controller For complete information about Rover refer to Trane publication EMTX IOP 2 Rover Installation Operation and Programming Guide Alarm Reset Any device that can communicate alarm reset information can reset diagnostics present in the controller BCXC SVX01B EN e TRANE Diagnostics Table 41 Tracer ZN010 and ZN510 controller diagnostics Diagnostic Latching Fan Valves Electric heat Damper Auxiliary temperature failure No Enabled No action No ac
60. K gt an eee YEL 00 ORG seges SPSS 2 B P252 A d ON OFF K 5 1P2 1 5 5 lt 23 2 12 2 1 cLc Hre 24 24 M 1L AC SPUCE YEL 5BS ORG SPLICE 5 2 1 4 2 1785 25 M Q d ON OFF 110 S Qn 35 2 m 1 v EE 705 1T82 27 Lo E RM a 12 DAMPER 1 28 1 29 J 30 WARNING Hazardous Voltage Disconnect all electric power including remote disconnects before servicing Follow proper lockout tagout procedures to ensure the power can not be inadvertently energized Failure to disconnect power before servicing could result in death or serious injury NOTICE Use copper conductors only Unit terminals are not designed to accept other conductor types Failure to use copper conductors could cause equipment damage BCXC SVX01B EN 89 e TRANE Wiring Diagrams BCXC with DX Coil and Tracer ZN520 NOTES e 277 volt 1 phase e economizer damper e condensate overflow e wall mounted zone sensor 1 UNLESS OTHERWISE NOTED ALL SWITCHES ARE SHOWN AT 26 C 77 F AT ATMOSPHERIC PRESSURE
61. MM 8 HEATSPe 3 3 5 7 3 5 6 3 1 2 28 E IROL BOX STAGE 2 PUR s 5 10 STAGE 2 ms 100 sna 363 1pi40 LA TRACER 1883 4P9 3 Tar cow c 2593 WET i pew mus 141 Mi COMM OUT 19 3 x TEW 2 209 3 1P8 1 1 1 11 a A SPLICE AND 1 8 4 4P9 4 c 292 182 lier nii p INSULATE SHIELDS 2 pf f __ 84 7 ga R CW 1 2 pian 22608 coma 14 LOH TRACER lt 7 ee d 4 1 TRA ZAZ Wy 9 GENERIC BOP GENERIC 0 ik gt gt gt d TB4 2 24V 2 1 11 1 0 1 2210 1 131 1 1 11 2 PUR 2P1231 282 B 20132 A WARNING SP10 2 2102 ma aget pon B 212 2RT1 GREEN PLUG SPLICE SPLICE CONDENSATE PUR Hazardous Voltage mum c aN PAN Disconnect all electric power including Bui inp 438 ja amp pet ET 4 remote disconnects before servicing Follow TR OCCUNOCC Coe proper lockout tagout procedures to ensure aca 4 485 7 3 pce ieee the power can not be inadvertently _ quy aven 285 energized Failure to disconnect power before B E servicing could result in death or serious FANSTAT 28A YEL injury 90 Use copper conductors only Unit terminals are not designed to accept other conductor types Failure to use copper conductors could
62. N OFF FAN TB3 4 4 FAN SWITCH CLG HTG 24 2 6 46 COMM LOW 5B3 COMM il 1TBi L4 M 1P471 L 5P5 1 sPUcEYEL fN ORG 565 2 184 2 221 nuo THT 25 160 00 IMUns Cui ON OFF TB2 5 45 COMM nc 8 2 26 8 gt TB2 4p 4 x Lo ER 404 coMM 4 3 J8 1 126 1 COMM OUT 27 E WHT 25 03 Ted RI 12 44 OPEN 2 3 24 1 HH 146 5 218 5 X 4 1 1 1 1 1 11 OAD e D SPLICE_AND 1P6 4 4p8 4 c Q 8 2 146 2 is pm m di INSULATE SHIELDS TRAIR CWP oy gt 4 12 CLOSE TB2 2 bf 16 4 V 28 4 4P8 2 1P6 2 1P1 12 coM 7 10 TRACER 29 p dTB4 1 BOP T82 15 A COMM IN GENERIC BOP GENERIC 30 c db dTBA 2 24V 31 z WARNING EAE 2 1 PH ya BI 2 2 7 1 4 2871 GREEN PLUG Hazardous Voltage Bg js s CONDENSATE L24A PUR 7 Disconnect all electric power including B S5A BRN pam Dar 12 5 4 Bp 4 remote disconnects before servicing Follow ws 210 27 2052 BI 3 occ UNocc OR FIELD RECONFIGURED proper lockout tagout procedures to ensure p PJE Cu NN duz 5 J2 8p 4 boos GENERIC the power can not be inadvertently 1 3 0 energized Failure to disconnect power before b dus 6 gat Z5AYEL o M H Pa 5 Servicing
63. NTROL BOX 4 X 4 JUNCTION BOX OR CONTROL BOX FACTORY MOUNTED ON DRIVE SIDE VERTICAL COIL amp FILTER SECTION SHIPS SEPARATE FOR FIELD INSTALLATION REFER TO INSTALLATION amp 13 00 MAINTANCE MANUAL FOR INSTRUCTIONS VERTICAL UNITS PROVIDED WITH 4 6 HIGH MOUNTING LEGS LEGS ARE NOT SEISMIC RATED 2 1 NOTE ON UNITS WITHOUT 9 61 RH vertical counter swirl TOP FILTER ACCESS SECTION 8 81 L H configuration N E vertical preswirl configuration sonis mI CENMAEUDKURIAR EEES x ALL COIL CONNECTIONS LOCATED IN THIS AREA front view 3 4 NOMINAL SCH 40 PVC MAIN amp AUXILIARY DRAIN CONN Table 3 Vertical blower coil dimensions in and weights Ib Basic Unit G G J J unit size L A B RH LH RH LH M N Q R weight 24 63 50 28 00 44 00 16 09 22 00 13 56 12 56 1 30 3 00 11 42 13 42 9 42 11 42 6 20 5 50 18 00 9 00 5 50 28 00 150 30 36 63 50 40 00 44 00 16 09 34 00 13 56 12 56 1 30 3 00 11 42 13 42 9 42 11 42 6 20 5 50 18 00 9 00 5 50 28 00 180 40 54 72 50 40 00 47 00 20 09 34 00 13 56 12 56 0 72 3 00 11 42 13 42 9 42 11 42 4 21 10 43 22 00 11 00 7 27 30 00 206 40 72 72 50 48 00 47 00 20 09 40 00 13 56 12 56 0 72 4 00 11 42 13 42 9 42 11 42 4 18 10 43 22 00 11 00 7 27 30 00 228 20 90 81 50 48 00 50 00 26 09 40 00 13 56 12 56 1 66 4 00 12 79 14 79 10 79 12 79 4 81 15 61 28 00 11 25 11 64 30 00 258 40 16 BCXC SVX01B EN e TRANE Dimensions and Weights
64. ORS USED FOR HEATING CIRCUIT 1K1 7S6 DISCONNECT SWITCH 3 12 WIRES WIRES USED VOR COOLING CIRCUIT RED 13 6A IRES USED FOR HEATING CIRCUIT BLK GRN 706 ZONE SENSOR MODULE 20 13 PLUG CONNECTOR 4 CONNECTOR 14 BLK RED 15 171 1 W BLK 1981 BLU 85 YEL 11 1 12 B BLK 75VA 11 1T81 L2 Eod iui p mha er guo 781 1 24V POWER GND TB1 2b 2 19 1 1 J1 7065 20 41x oE BLK y A7A BLK HIGH SPEED ZONE 1 91 ZONE 1K1 10 12 1181 1110 75 1P171 gi ag Ls i 5 55 22444 i4A YEL f2 EXHAUST GND TB3 2b d2 10 1 2 E 22 SET TB3 3p d3 csP 5B 1781 7 K 1P271 5 SPLICE BLU BLK SPLICE 565 2 g 182 2 23 To ES Zl 9 7 185972 5 2 712 2 wes ON OFF FAN TB3 4p d4 FAN SWITCH B gt 1P2 3 5 pape BRN CLG HTG a T 215 TB2 6p 48 COMM LoW coM 7 z5 1181 00 237 BRN coMMoN STAGE 1 ORG 18C ORG g STAGE 1 TB2 5p d5 COMM HI ELECTRIC HEAT 26 CONTROL BOX STAGE 2 PUR 18C PUR _ 19 STAGE 2 4 amp 0 1 146 1 ed COMM our 3 4P8 3 248 am z ECWHT e ges B 12A PNIO 11 182 35 Ke 146 3 248 3 4 1 d 1P1 11 OAD OSPLICE AND DE 4 4 J8 2 x INSULATE SHIELDS 28 B BLK 2 k c B NOT ISGRM 119 2 2 42 01 NS 16 4 V 238 4 R 4P8
65. PLS BUR 404 MIXING BOX DAMPER ACTUATOR 27 77 AEP AAS NO RN A A one 1 7 582 COLL VALVE MOTOR 23 NOT INSTALL WIRES IN CONDUIT THAT CONTAINS WIRES EQUIPMENT sB3 AUXILIARY COIL VALVE MOTOR 25 a OR HIGH VOLTAGE POWER WIRES lt COMMUNICATION Mid MUST BE TRANE PART NO 2A 3A 9 400 20 INDY CITY OR CONNECT AIR 25 MAXIMUM 4500 Foot AGGREGATE RUN ABLK RED 4A 1 7K5 EXHAUST FAN CONTROL RELAY 21 10 CAUTION DO NOT RUN ER IN VN e fo 28 CONDUIT OR WIRE BUNDLE WITH COMMUNI MEON UN 1k FOR ADDITIONAL INFORMATION REFER TO EMTX EB 68 ABLK o fo 5A M SES OUTSIDE AR TEMP SENSOR 5 lt B BLUE CONNECTORS USED FOR COOLING CIRCUIT 7 aN a RED CONNECTORS USED FOR HEATING CIRCUIT 1K1 JS6 JEUSED DISCONNECT SWITCH 3 a LUE WIRES USED FOR COOLING CIRCUIT RED A o o 6A IRES USED FOR HEATING CIRCUIT BLK GRN 706 ZONE SENSOR MODULE 20 13 P PLUG CONNECTOR J CONNECTOR da BLK RED 15 171 m WELK 188 BLU 24V YEL THE A2 B BLK 75V 11 11 1 12 D WHT E 41 1U1 1181 8 ouo dci 24V POWER GND TB1 2b 19 J1 uc 20 Ru gt 17A BLK 411 HIGH SPEED ZONE TB3 1 1 ZONE 1K1 10 12 1TB1 LT 10 21 BIS _ 2 14A YEL 2 EXHAUST GND TB3 2p 2 10 1 1 2 22 SET TB3 3p d3 CSP 5B2 1TB1 L K 1P271 5 3 1 ORG sPuce 5P3 2 1R2 2 c 23 Ta o aa TORS Ice DI wi go O
66. RE HINGED AT SIDE AS SHOWN HEATER MAY BE MOUNTED WITH HORIZONTAL OR VERTICAL UP AIRFLOW OPTIONAL MERCURY CONTACTORS CANNOT BE USED WITH VERTICAL UP AIRFLOW ELECTRIC HEAT MAY NEED FIELD SUPPLIED EXTERNALLY WRAPPED INSULATION IF THE UNIT IS INSTALLED IN AN UNCONDITIONED SPACE OR IF SWEATING IS AN ISSUE Table 6 Electric heat dimensions in and weights Ib e TRANE Dimensions and Weights Unit size H Ww A B D E Weight 12 14 06 17 88 8 13 6 79 10 50 7 75 0 03 10 0 18 14 06 19 88 10 13 8 79 10 50 7 75 0 03 10 8 24 18 06 21 25 7 63 6 29 13 50 12 63 0 80 11 3 36 18 06 27 25 13 63 12 29 13 50 12 63 0 80 12 8 54 18 06 27 25 13 63 11 67 13 50 12 63 0 22 16 0 72 18 06 27 25 13 63 11 67 13 50 12 63 0 22 17 4 90 18 06 27 25 13 63 11 67 13 50 12 63 1 16 19 2 BCXC SVX01B EN 19 e TRANE Dimensions and Weights Steam Coil ACCESS PANEL NOTES 1 FILTER ACCESS amp ACCESS PANEL LOCATED ON BOTH SIDES 2 WEIGHT INCLUDES CABINET WITH AVERAGE FILTER BUT DOES NOT INCLUDE CIOL WEIGHT SEE GENERAL DATA SECTION FOR COIL WEIGHTS AIRFLOW HEATING COIL FILTER ACCESS Table 7 Steam coil box dimensions in and weights Ib Coil Connections NPT Unit size H WwW A B Weight Supply Return 12 14 00 24 00 12 06 18 04 2 98 34 1 3 4 18 14 00 28 00 12 06 22 04 2 98 37 1 3 4 24 18 00 28 00 16 06 22 04 2 98 40 1 1 2 1 36 18 00 40 00 16 06 34 04 2 98 48 1 1
67. ROL POWER TRANSFORMER 16 13 1 756 6 1TB1 L1 L2 CONTROL TERMINAL BLOCK 3 ALL FIELD WIRING MUST BE IN ACCORDANCE WITH THE im m mi NATIONAL ELECTRIC CODE NEC STATE AND na 7 FIELD INSTALLED DEVICE 101 COMFORT LINK CONTROLLER 18 REQUIREMENTS 14 281 SUPPLY FAN MOTOR 11 4 NUMBERS ALONG THE RIGHT SIDE OF THE SCHEMATIC 2RTi DISCHARGE AR TEMP SENSOR 35 5 DESIGNATE THE LOCATION OF CONTACTS BY LINE NUMBER wl yl wl wl 252 CONDENSATE OVERFLOW SWITCH 32 FIELD SUPPLIED CONTROL RELAYS POWERED BY THIS UNIT 5 Se 36 Se 8 2 lt BE PILOT DUTY 24VAC COIL 6VA 5 5 5 6 255 FAN STATUS SWITCH 36 6 WIRING TO ZONE SENSOR MUST 16 22 AWG CU GRN BLK BLK ncs IGI SENSOR MAS EN 00 T Lt 7 0 Aut NDING BOX DAMPER ACTUATOR 27 SHIELD MUST BE GROUNDED AT f END END CHASSIS A AND 1 E _ 582 COIL VALVE MOTOR 23 NOT INSTALL WIRES IN CONDUIT THAT CONTAINS WIRES EQUIPMENT 4 5B5_ AUXIUARY COL VALVE MOTOR 8 OR HIGH VOLTAGE POWER WIRES SOUND lt COMMUNICATION WIRE MUST TRANE PART NO 2 3A 8 00 20 28 UM CITY OR CONNECT AIR 4 EVEL 4 SABLE MAXIMUM OF 4500 FOOT 1K1 AGGREGATE RUN ABLK RED 4A 7 5 EXHAUST FAN CONTROL RELAY 21 to DO RUN POWER IN THE SA e le 281 CONDU R NIRE DLE ITH UNI MEN LINK 1K FOR ADDITIONAL INFORMATION REFER YO EMIX EB 86 ABK al j
68. S 1 UNLESS OTHERWISE NOTI LL SWITCHES E SHO C NOR cca o EA toon lt r TE 1 08 RRO GERM NORMAL SHUTDOWN HAS OCCURED bor d 1 CONTROL PANEL DESIGNATION DESCRIPTION NUMBER 2 DASHED LINES INDICATE RECOMMENDED FIELD IRING I lll 2 SUPPLY FAN AND COIL SECTION 1681 TRANSFORMER CIRCUIT BREAKER 16 2 lt BY OTHERS DASHED LINE ENCLOSURES AND OR DASHED 1 ri amp i in 3 1Ki SUPPLY FAN CONTACTOR 20 DEVICE QDIUNES INDICAT NEONEN TS PROVIDED 1 1 4 MIXING BOX SECTION 151 MANUAL DISCONNECT SWITCH 7 CO i 20404 5 EXTERNAL PIPING 1T CONTROL POWER TRANSFORMER 16 1 A 4 1 756 6 1 L1 1 L2 CONTROL TERMINAL BLOCK 3 ALL FIELD WIRING MUST BE IN ACCORDANCE WITH THE NATIONAL NESS MCSD ENED IAE AND LOCAL n at 7 FIELD INSTALLED DEVICE IU TERMINAL UNIT CONTROLLER 18 REQUIREMENTS 1 SE 2 1 SUPPLY FAN MOTOR 11 4 NUMBERS ALONG THE RIGHT SIDE OF THE SCHEMATI Low d 211 DISCHARGE AIR TEMP SENSOR 35 p DESIGNATE THE LOCATION OF CONTACTS BY LINE NUMBER ul wl wi wl 2S2 CONDENSATE OVERFLOW SWITCH 32 lt 5 FIELD SUPPLIED CONTROL RELAYS POWERED BY THIS UNIT se sh m FREEZE 32 A i g zt sf og s S2 lis BE PILO SUNY RATED 24VAC COLL BVA MM M lt 6 WIRING TO ZONE SENSOR MUST 16 22 AWG CU TWISTED BUS BUR BUS 7 SHIELDED CABLE AND NO MORE THAN 1000 FT LG 582 MAN COIL VALVE MOTOR 23 SHIELD MUST BE GROUNDED AT UCM END
69. The wiring between the controller outputs and the end devices must be present and correct for normal operation The controller must be properly configured based on the actual installed end devices and application When the unit configuration does not match the actual end devices the unit may not work correctly A specific list of diagnostic affects valve operation For more information see Table 41 p 77 and Table 42 p 77 The controller includes a manual output test sequence you can use to verify output operation and associated output wiring However based on the current step in the test sequence the valve s may not be open Refer to the Manual Output Test p 73 When the fan is off with no demand for capacity 0 and the outdoor air temperature is below is below the freeze avoidance setpoint the controller disables compressors and electric heat outputs This includes unoccupied mode when there is no call for capacity or any other time the fan is off The controller energizes the outputs only as needed to meet the unit capacity requirements BCXC SVX01B EN TRANE Wiring Diagrams Two Pipe BCXC with Tracer ZN510 e 208 volt 3 phase e 2 position damper single stage electric heat e 2 position valve e condensate overflow e wall mounted zone sensor
70. Tracer ZN520 only and possible it is the primary cooling capacity If hydronic heating is possible it will be the primary heating capacity Occupied Standby Mode Tracer ZN510 or ZN520 only The controller can be placed into the occupied standby mode when a communicated occupancy request is combined with the local hardwired occupancy binary input signal During occupied standby mode the Tracer ZN520 controller s economizer damper position goes to the economizer standby minimum position Note The economizer standby minimum position can be changed using Rover service tool In the occupied standby mode the controller uses the occupied standby cooling and heating setpoints Because the occupied standby setpoints typically cover a wider range than the occupied setpoints the controller reduces heating cooling demand for the space Also units with Tracer ZN520 and the fresh air economizer damper use the economizer standby minimum position to reduce heating and cooling demand When no occupancy request is communicated the occupancy binary input switches the controller s operating mode between occupied and unoccupied When no communicated occupancy request exists the unit cannot switch to occupied standby mode Occupied Bypass Mode Tracer ZN510 or ZN520 Only The controller can be placed in occupied bypass mode by either communicating an occupancy bypass request to the controller or by using the timed override on button
71. Use a 3 flexible duct connection on discharge ductwork O Ensure trunk ductwork is complete and secure to prevent leaks Verify that all ductwork conforms to NFPA 90A or 90B and all applicable local codes Unit Piping O Verify the condensate drain piping is complete for the unit drain pan Install and tighten the condensate P trap drain plug O Make return and supply water connections to the unit and or piping package O Ensure the drain pan and condensate line are not obstructed Remove any foreign matter that may have fallen into the drain pan during installation O Verify that piping does not leak Make sure drain lines are open while performing the leak test Treat water to prevent algae slime and corrosion O Connect refrigerant piping lines Connect steam supply lines and condensate return lines to coil in accordance with steam piping recommendations Electrical O Check all electrical connections for tightness O Verify motor voltage and amps on all phases with the unit nameplate ratings to ensure unit operates correctly Unit Panels O Ensure all unit access panels are in place and that all screws nuts and bolts are tightened to their proper torques Note During the unit break in period bearing temperature may be 150 160 F during normal operation bearing temperature should range be 90 100 BCXC SVX01B EN 47 e TRANE Start Up Sequence of Operation Tracer ZN Controller Sequence of Operation
72. Valves disabled fresh air damper disabled electric heat disabled baseboard heat disabled Normal power up On Valves enabled fresh air damper enabled electric heat enabled a The generic binary output 4 1 TB4 2 state is unaft b When the entering water temperature is required but not present the Tracer ZN520 contro ected by all unit diagnostics ler generates a diagnos ic to indicate the sensor loss condition The controller automatically clears the diagnostic once a valid entering water temperature value is present non latching diagnostic When the entering water temperature sensor fails the controller prohibits all hydronic cooling operation but allows the delivery of heat when heating is required In the Cool mode all cooling is locked out but normal fan and outdoor air damper operation is permitted c When the outdoor air temperature sensor has failed or is not present the Tracer ZN520 controller generates a diagnostic to indicate the sensor loss condition The controller automatically clears the diagnostic once a valid outdoor air temperature value is present non latching diagnostic When the outdoor air temperature sensor fails or is not present the controller prohibits economizer operation BCXC SVX01B EN 77 e TRANE Diagnostics Common Diagnostics Table 43 Fan outputs do not energize Probably cause Explanation Random start observed Power up control wait Cyclin
73. al humidity sensor Digit 38 Zone Sensors 0 none 1 off auto setpoint knob on cancel COMM 2 off auto high low setpoint knob on cancel COMM 3 wall mtd zone sensor set point occ COMM 4 wall mtd zone sensor occ COMM 5 wall mtd zone temp sensor A digital zone sensor O A H L SP OCC COMM B digital zone sensor CPS OCC COMM C wireless zone sensor setpoint only Digit 39 Extra Belt 0 none 1 ship loose extra belt Digit 40 Extra Filter 0 none 1 ship loose extra 1 throwaway filter 2 ship loose extra 2 pleated throwaway BCXC SVX01B EN TRANE General Information Blower Coil General Information Blower coil units are draw thru air handlers for cooling load conditions of 400 3000 cfm Units are available in either horizontal model BCHC or vertical model BCVC configurations Horizontal units are typically ceiling suspended via threaded rods Knockouts are provided in all four corners to pass the rods through the unit Horizontal units can also be floor mounted Vertical units are typically floor mounted They have a side inlet for easy duct connection and do not require a field fabricated inlet plenum Vertical units ship in two pieces and can be set up in either a pre swirl or counter swirl configuration Basic unit components consist of a water coil condensate drain pan filter duct collars one fan wheel and motor with drive See Figure 1
74. algorithm The modulating control algorithm used when occupied or in occupied standby is described in the following sections Additional information related to the handling of the controller setpoints can be found in the previous setpoint operation section Note Heating and cooling setpoint high and low limits are always applied to the occupied and occupied standby setpoints Unoccupied Mode When the controller is in the unoccupied mode the controller attempts to maintain space temperature at the stored unoccupied heating or cooling setpoint based on the e measured space temperature e active setpoint and e control algorithm regardless of the presence of a hardwired or communicated setpoint Similar to other controller configuration properties the locally stored unoccupied setpoints can be modified using Rover service tool During cooling mode when the space temperature is above the cool setpoint the primary cooling capacity operates at 100 If more capacity is needed the supplementary cooling capacity turns on or opens to 100 During heating mode when the space temperature is below the heat setpoint the primary heating capacity turns on All capacity turns off when the space temperature is between the unoccupied cooling and heating setpoints Note that primary heating or cooling capacity is defined by the unit type and whether heating or cooling is enabled or disabled For example if the economizer is 49 enabled
75. alve amp pipe 4 4 Cv 1 2 valve amp pipe 7 0 Cv 3 way valve OR 6 0 Cv 2 way valve 1 valve amp pipe 8 0 Cv 1 valve amp pipe 74 Cv 1 2 position valve amp pipe 8 3 Cv 1 1 4 2 position valve amp pipe 1 3 Cv 1 2 valve 3 4 pipe 1 8 Cv 1 2 valve 3 4 pipe 2 3 Cv 1 2 valve 3 4 pipe 2 7 Cv 1 2 valve 3 4 pipe Digit 32 Unit Coil 42 Piping Package 0 none 1 basic piping package 2 deluxe piping package Digit 33 Remote Heat Options none staged electric heat 2 position hot water n c cC IOoOTmmooup o moOU o CIO tou i ZTA Digit 34 Mixing Box Damper Actuator Note The back damper is the control damper when actuators are ordered The back damper is n c normally closed orn o normally open as selected none 2 position n o ship loose modulating n c modulating n o modulating ship loose field supplied 2 position n o field supplied 2 position n c field supplied modulating Digit 35 Factory Mounted Control Options 0 fan status condensate overflow D low limit F A amp C K C amp D A amp D N A C amp D Digit 36 Control Options 2 0 none A outside air sensor field mounted B discharge air sensor C A amp B Digit 37 Control Options 3 0 none dehumidification with communicated value B dehumidification with loc
76. andard piping practices when piping to the coil Figure 9 Horizontal unit coil connect location NOTICE Potential coil freeze condition Make provisions to drain the coil when not in use to prevent coil freeze up Failure to follow this procedure could result in equipment property damage Piping Packages Piping packages ship separate for field installation and have sweat type connections Interconnecting piping is field provided When brazing piping follow these guidelines to prevent piping component damage 1 Avoid exposing piping components to high heat when making sweat connections 2 Protect the closest valve to the connection with a wet rag 3 Ensure the circuit balancing valve option is in the unseated position Refrigerant Coil Piping The DX cooling coil in a BCHC BCVC unit is equipped with a single distributor single circuited Exception size 72 and 90 six row DX cooling coils are horizontally split and have two distributors double circuited which may be manifolded to a single refrigeration circuit in a condensing unit Some condensing units have two independent refrigeration circuits Do not manifold two independent refrigeration circuits into a single circuited DX evaporator coil Note Refer to Warnings Cautions and Notices for information on handling refrigerants Units that are UL listed shall nothave refrigerant temperatures and pressures exceeding that listed on the unit nameplate Follow accepted ref
77. bore 68 BCXC SVX01B EN e TRANE Maintenance Coil Maintenance BCXC SVX01B EN Keep coils clean to maintain maximum performance For operation at its highest efficiency clean the coil often during periods of high demand or when dirty conditions prevail Clean the coil a minimum of once per year to prevent dirt buildup in the coil fins where it may not be visible Remove large debris from the coils and straighten fins before cleaning Remove filters before cleaning Rinse coils thoroughly after cleaning Clean the coil fins using one of these methods e steam with detergent e hot water spray and detergent e commercially available chemical coil cleaner NOTICE Potential unit damage from coil cleaners Do not use acidic chemical coil cleaners Also do not use alkaline chemical coil cleaners with a pH value greater then 8 5 after mixing without using an aluminum corrosion inhibitor in the cleaning solution Using these types of cleaners could result in equipment damage Inspecting and Cleaning Coils Coils become externally fouled as a result of normal operation Dirt on the coil surface reduces its ability to transfer heat and can cause comfort problems increased airflow resistance and thus increased operating energy costs If the coil surface dirt becomes wet which commonly occurs with cooling coils microbial growth mold may result causing unpleasant odors and serious health related indoor air quality problems Inspect
78. bration or temperature Operating conditions will vary the frequency of inspection and lubrication Motor lubrication instructions are on the motor tag or nameplate If for some reason these instructions are not available contact the motor manufacturer Some motor manufacturers may not provide oil tubes on motors with permanently sealed bearings A WARNING Hazardous Voltage Disconnect all electric power including remote disconnects before servicing Follow proper lockout tagout procedures to ensure the power can not be inadvertently energized Failure to disconnect power before servicing could result in death or serious injury Before lubricating the motor 1 Turn the motor off and disconnect power to the unit to ensure the motor doesn t accidentally start 2 Use a No 10 SAE non detergent automotive type oil Do not over oil Sheave Alignment To prevent interference of the fan frame with the belt make sure that the belt edge closes to the motor has the proper clearance from the fan frame as shown in Figure 15 p 64 Align the fan and motor sheaves by using a straight edge or taut string as shown in Figure 16 p 64 The straight edge must be long enough to span the distance between the sheave outside edges When the sheaves are aligned the straight edge will touch both sheaves at points A through D as shown in Figure 16 For uneven width sheaves place a string in the center groove of both 63 e TRANE Maintenance
79. cations Tracer ZN controllers have Comm5 communication ports Typically a communication link is applied between unit controllers and a building automation system Communication also is possible via Rover Trane s service tool BCXC SVX01B EN e TRANE Installation Controls Peer to peer communication across controllers is possible even when a building automation system is not present You do not need to observe polarity for Comm5 communication links The controller provides six 0 25 inch quick connect terminals for the Comm5 communication link connections as follows e Two terminals for communication to the board e Two terminals for communication from the board to the next unit daisy chain e Two terminals for a connection from the zone sensor back to the controller Each controller has its own unique address or I D number on a Neuron chip Setting dip switches are not required on the Tracer controller Tracer Summit Communication Wiring BCXC SVX01B EN For Tracer ZN controlled units that will interface with the Trane Tracer Summit building management system terminate the communication wiring in the control box at the designated terminals on the board Reference the unit wiring diagram or submittals Ground shields at each Tracer ZN controller taping the opposite end of each shield to prevent any connection between the shield and anther ground Refer to Trane publication CNT SVX04A EN Tracer ZN 520 Unit Controll
80. cause equipment damage BCXC SVX01B EN e TRANE Wiring Diagrams BCXC with DX Coil Hydronic Heating and Tracer ZN520 e 460 volt 3 phase e economizer damper e condensate overflow e wall mounted zone sensor NOTES 1 UNLESS OTHERWISE NOTED ALL SWITCHES ARE SHOWN AT 25 7 F AT ATMOSPHERIC PRESSURE AT LLEGUE LEGEND C VE HUMIDITY WITH ALL UTILITIES TURNED AREA DEVICE DESCRIPTION LINE a OFF AND AFTER A NORMAL SHUTDOWN HAS OCCURED 1 MAIN CONTROL PANEL DESIGNATION NUMBER 2 DASHED LINES INDICATE RECOMMENDED FIELD WIRING _ 2 SUPPLYFAN AND COIL SECTION 1 1 TRANSFORMER CIRCUIT BREAKER 16 2238 7 55 5 5 err one z BY THE FIELD SOLID LINES INDICATE WIRING BY 4 MIXING SECTION 1K3 DX RELAY 24 TRANE 5 EXTERNAL PIPING 181 MANUAL DISCONNECT SWITCH 7 6 111 CONTROL POWER TRANSFORMER 16 ALL FIELD WIRING MUST BE IN ACCORDANCE WITH THE NATIONAL ELECTRIC CODE NEC STATE AND LOCAL PELD INSTALLED DEVICE 17814102 CONTROL TERMINAL BLOCK s REQUIREMENTS 2 24 101 ZN CONTROLLER 18 4 NUMBERS ALONG THE RIGHT SIDE OF THE SCHEMATIC b d 4 281 SUPPLY FAN MOTOR p DESIGNATE THE LOCATION OF CONTACTS BY LINE NUMBER i eli 21 2
81. coils at least every six months or more frequently as dictated by operating experience Cleaning frequently is dependent upon system operating hours filter maintenance and efficiency and dirt load Follow is the suggested method below Steam Hot Water and Cooling Coil Cleaning Procedure 1 Don the appropriate personal protective equipment PPE 2 Gain access to both sides of the coil section 3 Use a soft brush to remove loose debris from both sides of the coil 4 Use a steam cleaning machine starting from the top of the coil and working downward Clean the leaving air side of the coil first then the entering air side Use a block off to prevent steam from blowing through the coil and into a dry section ofthe unit 5 Repeat Step 4 as necessary Confirm that the drain line is open following completion of the cleaning process 6 Allow the unit to dry thoroughly before putting the system back into service 7 Straighten any coil fins that may be damaged with a fin rake 8 Replace all panels and parts and restore electrical power to the unit 9 Ensure that contaminated material does not contact other areas of the unit or building Properly dispose of all contaminated materials and cleaning solutions A WARNING Hazardous chemicals Coil cleaning agents can be either acidic or highly alkaline Handle chemical carefully Proper handling should include goggles or face shield chemical resistant gloves boots apron or suit as req
82. combination angle filter mixing box is available In addition all units are available with either a basic or deluxe piping package option that includes a variety of control valve sizes in two or three way configurations The basic package consists of e TRANE General Information 10 a control valve and stop ball valves The deluxe package consists of a control valve a stop ball valve a circuit setter and strainer Belt drive motors range from 1 3 to 3 horsepower in a wide range of voltages All motors have internal thermal and current overloads permanently sealed ball bearings and a resilient cradle mount to reduce noise and vibration transmission Variable pitch sheave drive kit options help make it possible to more accurately select design static pressure For additional flexibility 115 volt single phase two speed motors are optional Note Sheaves are factory set in the middle of the range Field adjustment of sheaves motor and belt are required to arrive at desired rpm Refer to the original sales order and Table 35 p 68 for drive information Units may have no controls 4 x 4 junction box or any of four different control types 1 control interface 2 Tracer ZN010 3 Tracer ZN510 4 Tracer ZN520 All control options are factory installed and tested BCXC SVX01B EN TRANE Pre Installation Receiving and Handling Blower coil units are packaged for easy handling and storage on the job site Upon d
83. compressor and the economizer at the same time This prevents problems where the entering air temperature is too low for the evaporator coil to operate as designed which leads to compressor short cycling due to low discharge air temperatures Discharge Air Tempering Tracer ZN520 Only Cascade cooling control initiates a discharge air tempering function if e the discharge air temperature falls below the discharge air temperature control low limit all cooling capacity is at minimum and e the discharge control loop determines a need to raise the discharge air temperature The controller then provides heating capacity to raise the discharge air temperature to its low limit The discharge air tempering function enables when cold fresh air is brought in through the fresh air damper and causes the discharge air to fall below the discharge air temperature control low limit The controller exits the discharge air tempering function when heat capacity has been at 096 for five minutes Heating Operation During heating mode the Tracer ZN controller attempts to maintain the space temperature at the active heating setpoint Based on the controller s occupancy mode the active heating setpoint can be e occupied heating e occupied standby heating Tracer ZN510 or ZN520 only or e unoccupied heating Note Unit diagnostics can affect the controller operation causing unit operation to be defined as abnormal Refer to Troubleshooting
84. could result in death or serious FAN STAT _ 26A VEL injury 848 NOTICE I Use copper conductors only Unit terminals are not designed to accept other conductor types Failure to use copper 42 conductors could cause equipment damage BCXC SVX01B EN e TRANE Wiring Diagrams Four Pipe BCXC with Tracer ZN520 e 460 volt 3 phase e 3 wire floating point valves e economizer damper e condensate overflow e fan status switch e wall mounted zone sensor NOTES 1 UNLESS OTHERWISE NOTED ALL SWITCHES ARE SHO ae RELATIVE aw ads ERROR RII PR TOGATION DEVICE LINE i OFF AND AFTER A SHUTDOWN HAS OCCU 111 1 CONTROL PANEL DESIGNATION DESCRIPTION NUMBER 2 DASHED LINES INDICATE RECOMMENDED FIELD NG r 4 12283 2 SUPPLY FAN AND COIL SECTION 1 1 TRANSFORMER CIRCUIT BREAKER 16 2 Bev OTHERS PASHED LINE EP ENC 212 SU BES AN ND ROBB SHED 5 1K1 SUPPLY FAN CONTACTOR 20 BY THE FIELD SOLID LINES INDICATE WIRING o ee 4 MIXING BOX SECTION 151 MANUAL DISCONNECT SWITCH T TRANE CO If 1 5 EXTERNAL PIPING 111 CONT
85. ctric power including remote disconnects before servicing Follow proper lockout tagout procedures to ensure the power can not be inadvertently energized Failure to disconnect power before servicing could result in death or serious injury For multiple fan speed applications the Tracer ZN controller offers additional fan configuration flexibility See Table 19 for fan operation sequences Separate default fan speeds for heating and cooling modes can be configured using Rover service software Table 19 Tracer ZN520 fan configuration Auto fan operation Fan speed default Heating Continuous Off Low High Cooling Continuous Off Low High The fan runs continuously at selected speeds high or low When the fan mode switch is in the auto position or a hardwired fan mode input does not exist the fan operates at the default configured speed See Table 20 for Tracer ZN520 default fan configuration for heating and cooling modes During unoccupied mode the fan cycles between high speed and off with heating and cooling fan modes If the requested speed is off the fan always remains off Table 20 Fan sequence of operation Fan speed Tracer ZN controller Sequence of operation Off ZNO10 ZN510 ZN520 fan is off control valves and damper option are closed low air temperature detection open is still active Low or high continuous fan 2 010 ZN510 fan operates continuously at selected speed 2 position c
86. d noise problems g DX coil height and width dimensions are same as comparable hydronic coils Four and six row DX coil dry weight dimensions are same as comparable 4 and 6 row hydronic coils A 3 row DX coil dry weight is 2596 less than a comparable 4 row hydronic coil Internal volumes are approximately 696 less than comparable hydronic coils BCXC SVX01B EN 67 e TRANE Maintenance Table 35 Drive data Fan rpm range Motor sheave Fan sheave Belt Motor speed Unit Motor 1750 1450 Drive size watts HP Browning Trane Browning Trane Browning Trane 60 Hz 50 Hz letter 12 18 186 1119 1 3to 1 1 2 IVL40x5 8 10090082090 74 3 4 X10070173270 41 10200254160 6019 878 513 727 AK64x3 4 10070173030 A39 X10200254140 727 109 602 853 AK54x3 4 X10070172C40 A37 X10200254120 879 1245 728 1031 AK46x3 4 10070172 20 A36 X10200254110 1000 1417 829 1174 AK39x3 4 10070172700 A35 X10200254100 1200 1700 994 1409 AK34x3 4 10070172640 A34 X10200254090 1313 1859 1088 1541 AK28x3 4 10070172440 A34 X10200254090 1615 2288 1338 1896 24 36 186 1119 1 3 to 1 1 2 40 5 8 10090082090 AKII4x3 4 X10070173A30 A53 X10200254280 390 552 323 457 94 3 4 10070173630 48 X10200254230 478 678 396 562 84 3 4 10070173450 46 X10200254210 540 765 447 634 74 3 4 10070173270 45 X10200254200 619 878 513 727 AK64x3 4 10070173030 43 X10200254180 727 1029 602 853 54 3 4 10070172 40 41 X10200254160 879 1
87. diagrams on the inside of the control box cover Refer to the unit specific wiring diagrams for wiring connection point and fuse installation information Refer to the unit nameplate for unit specific electrical information such as voltage minimum circuit ampacity MCA and maximum fuse size MFS WARNING Hazardous Voltage Disconnect all electric power including remote disconnects before servicing Follow proper lockout tagout procedures to ensure the power can not be inadvertently energized Failure to disconnect power before servicing could result in death or serious injury NOTICE Use copper conductors only Unit terminals are not designed to accept other conductor types Failure to use copper conductors could cause equipment damage NOTICE Correct phase critical Correct phase sequence is critical If phase sequence of the incoming line voltage is not correct it could cause motor damage Electrical Connections Units have one of three different connection points depending on the unit type and options 1 Ifthe unit has no controls power and ground are tucked inside of the handy box 2 Ifthe unit has a control interface or Tracer ZN controller power and ground are inside the control box If the unithas a control interface or a Tracer controller the power wires and ground wire are inside the control box connected to a non fused disconnect switch 28 BCXC SVX01B EN e TRANE Installation Electrical 3 Ifthe u
88. ds using a forklift or jack Lift one end of the unit off of the skids Vibration isolators for external isolation are field supplied Pre Installation Checklist 14 Complete the following checklist before beginning unit installation O Verify the unit size and tagging with the unit nameplate L1 Make certain the floor or foundation is level solid and sufficient to support the unit and accessory weights Refer to Dimensions and Weights p 15 Level or repair the floor before positioning the unit if necessary O Allow minimum recommended clearances for routine maintenance and service Refer to unit submittals for dimensions 1 Allow one and one half fan diameters above the unit for the discharge ductwork BCXC SVX01B EN TRANE Dimensions and Weights Horizontal Blower Coil NOTES ALL DIMENSIONS ARE IN INCHES B Fr ALL COIL CONNECTIONS ARE SWEAT STYLE WEIGHT OF BASIC UNIT INCLUDES CABINET ALTERS r AVERAGE DRIVE WIRING AND AVERAGE FILT IT DOES NOT INCLUDE COIL MOTOR OR 1 00 SHIPPING PACKAGE PLEASE REFER TO CAI FOR MOTOR WEIGHTS HTG amp CLG COILS B ADD TO BASIC UNIT WEIGHT 9 LBS FOR WEIGHT OF CONTROL BOX L 4 X 4 JUNCTION BOX OR CONTROL BOX 2 00 FACTORY MOUNTED ON DRIVE SIDE 4 4 JUNCTION BOX UNIT CONTROL BOX 9 50 NOTE ON UNITS WITHOUT A BOTTOM FILTER ACCESS SECTION 88 KNOCKOUT FOR HANGER 5 20 RODS TOP amp BOTTOM OF UNIT ACCESS PAN
89. e TRANE Blower Coil Air Handler Air Terminal Devices 400 to 3000 cfm Models BCHC and BCVC AO and later design sequence April 2008 BCXC SVX01B EN e TRANE Warnings Cautions and Notices Warnings Cautions and Notices Note that warnings cautions and notices appear at appropriate intervals throughout this manual Warnings are provide to alert installing contractors to potential hazards that could result in personal injury or death Cautions are designed to alert personnel to hazardous situations that could result in personal injury while notices indicate a situation that may result in equipment or property damage only accidents Your personal safety and the proper operation of this machine depend upon the strict observance of these precautions ATTENTION Warnings Cautions and Notices appear at appropriate sections throughout this literature Read these carefully WARNING Indicates a potentially hazardous situation which if not avoided could result in death or serious injury CAUTION Indicates a potentially hazardous situation which if not avoided could result in minor or moderate injury It could also be used to alert against unsafe practices NOTICE Indicates a situation that could result in equipment or property damage only accidents Important Environmental Concerns Scientific research has shown that certain man made chemicals can affect the earth s naturally occurring stratospheric ozo
90. e Piping Two way 1 2 and 1 valve deluxe piping package BCXC SVX01B EN 23 e TRANE Dimensions and Weights Three way 1 2 and 1 valve deluxe piping package F Table 11 Piping package dimensions in Piping Nominal package tube size Actual size A B C D E F 2 way 1 2 5 8 12 025 2 650 12 625 5 650 N A N A 1 1 1 8 13 295 4 260 13 220 9 288 3 020 N A 3 way 1 2 5 8 12 088 2 097 12 688 4 497 6 351 6 351 3 4 7 8 15 623 1 750 15 313 6 290 6 701 6 701 1 1 1 8 13 370 3 690 13 210 9 060 9 813 9 813 1 1 4 1 3 8 16 885 3 738 16 410 10 023 3 052 10 520 24 BCXC SVX01B EN TRANE Installation Controls Installing Wall Mounted Controls Wall mounted zone sensors ship taped to the control box Refer to Figure 3 for zone sensor dimensions Position the controller on an inside wall three to five feet above the floor and at least 18 inches from the nearest outside wall Installing the controller at a lower height may give the advantage of monitoring the temperature closer to the zone but it also exposes the controller to airflow obstructions Ensure that air flows freely over the controller Before beginning installation follow the wiring instructions below Also refer to the unit wiring schematic for specific wiring details and point connections Wiring Instructions Avoid mounting the controller in an area subject to the following conditions Dead spots suc
91. each 2 foot elevation to assure continuous condensate removal Figure 11 Type NS steam coils horizontal tubes for horizontal airflow Code of System Components FT Float and thermostatic steam trap BT Bucket steam trap GV Gate valve OV Automatic two position on off control valve TV Automatic three way control valve VB Vacuum breaker 15 degree swing check valve CV Check valve ST Strainer AV Automatic or manual air vent FULL SIZE OF STEAM IRAP CONNECTION BCXC SVX01B EN TRANE Controls Interface Control Options Blower coil air handlers are available without controls or with one of four different control options e Control interface e Tracer ZNO10 e Tracer ZN510 e Tracer ZN520 Units without controls have a junction box mounted on the drive side for motor power wire terminations The controller is easily accessible in the control box for service Control option descriptions follow below Control Interface The control interface is for use with a field supplied low voltage thermostat It includes a control box with a transformer motor contactor and disconnect switch All hot leads to the motor are disconnected at the contactor and disconnect switch to eliminate the risk of shock during service The end devices are mounted with the wires pulled and terminated inside the two sided terminal strip All customer connections other than power are on the outside of the two sided terminal
92. econds the Tracer ZN controller will uninstall itself from the ICS communication network and shut down all unit operation This mode is indicated by the red Service LED flashing once every second See the Red BCXC SVX01B EN e TRANE Diagnostics Service LED section Use Rover service tool to restore the unit to normal operation Refer to the Rover product literature for more information Manual Output Test BCXC SVX01B EN The purpose of the manual output test sequence is to verify output and end device operation Use the manual output test to e Verify output wiring and operation without using Rover service tool e Force the water valve to open and balance the hydronic system Note The manual output test is not an automatic cycle You must press the Test button to proceed through each step The controller observes all diagnostics that occur during the test sequence Although an automatic diagnostic reset sequence exists as part of the controller s normal operation the automatic diagnostic reset feature is not active during the test sequence If left in an individual test step the controller remains in test mode for 60 minutes and then exits to normal operation Many service calls are due to unit diagnostics The test sequence resets unit diagnostics and attempts to restore normal unit operation prior to testing the outputs If the diagnostics remain after a reset the STATUS LED indicates the diagnostic condition is
93. ed refrigerants refrigerant substitutes or refrigerant additives could result in death or serious injury or equipment damage 2008 Trane All rights reserved BCXC SVX01B EN BCXC SVX01B EN e TRANE Warnings Cautions and Notices Z WARNING Hazard of Explosion and Deadly Gases Never solder braze or weld on refrigerant lines or any unit components that are above atmospheric pressure or where refrigerant may be present Always remove refrigerant by following the guidelines established by the EPA Federal Clean Air Act or other state or local codes as appropriate After refrigerant removal use dry nitrogen to bring system back to atmospheric pressure before opening system for repairs Mixtures of refrigerants and air under pressure may become combustible in the presence of an ignition source leading to an explosion Excessive heat from soldering brazing or welding with refrigerant vapors present can form highly toxic gases and extremely corrosive acids Failure to follow all proper safe refrigerant handling practices could result in death or serious injury Introduction About This Manual Use this manual for commercial blower coil models BCHC and BCVC This is the second version of this manual this manual supercedes BCXB SVX01A EN It provides specific installation operation and maintenance instructions for AO and later design sequences For previous design sequence information contact your local Trane rep
94. elivery inspect all components for possible shipping damage See the Receiving Checklist section below for detailed instructions Trane recommends leaving units and accessories in their shipping packages skids for protection and handling ease until installation Shipping Package Blower coil air handlers ship assembled on skids with protective coverings over the coil and discharge openings Ship Separate Accessories Field installed sensors ship separately inside the unit s main control panel Piping packages mixing boxes ship separately packaged on the same skid as the unit Receiving Checklist Complete the following checklist immediately after receiving unit shipment to detect possible shipping damage L1Inspect individual cartons before accepting Check for rattles bent carton corners or other visible indications of shipping damage If a unit appears damaged inspect it immediately before accepting the shipment Manually rotate the fan wheel to ensure it turns freely Make specific notations concerning the damage on the freight bill Do not refuse delivery O Inspect the unit for concealed damage before it is stored and as soon as possible after delivery Report concealed damage to the freight line within the allotted time after delivery Check with the carrier for their allotted time to submit a claim O Do not move damaged material from the receiving location It is the receiver s responsibility to provide reasonable evide
95. er Installation Operation and Programming Guide for the communication wiring diagram Communication wire must conform to the following specification e Shielded twisted pair 18 AWG e Capacitance 23 21 25 picofarads pF per foot e Listing Rating 300V 150C NEC 725 2 b Class 2 Type CL2P e Trane Part No 400 20 28 or equivalent available through Trane BAS Buying Group Accessories catalog 27 e TRANE Installation Electrical Unit Wiring Diagrams Specific unit wiring diagrams are provided on the inside of the control panel door Typical unit wiring diagrams are in Wiring Diagrams p 81 Use these diagrams for connections or trouble analysis WARNING Grounding Required Follow proper local and state electrical codes for requirements on grounding Failure to follow code could result in death or serious injury Supply Power Wiring Wiring must conform to NEC and all applicable code requirements It is the installer s responsibility to provide adequately sized power wires and proper unit grounding Bring supply wiring through provided equipment knockouts located at the power connection point on the unit Equipment submittals should be referred to for the exact electrical access connection point Connect the power wires to the power connection point provided Connection to the installer provided ground path must be made to the green wire or green grounding screw provided on each unit Locate unit wiring
96. er closed electric heat off baseboard heat off Low air flow fan failure Off Valves closed fresh air damper closed electric heat off baseboard heat off Space temperature failure Off Valves closed fresh air damper closed electric heat off baseboard heat off Entering water temperature failure On Valves enabled 5 fresh air damper enabled electric heat enabled baseboard heat off Discharge air temperature low limit Off Valves open fresh air damper closed electric heat off baseboard heat off Discharge air temperature failure Off Valves closed fresh air damper closed electric heat off baseboard heat off Fresh air temperature failure On Valves enabled fresh air damper minimum position 9 electric heat enabled baseboard heat enabled Relative humidity failure On Valves enabled fresh air damper enabled electric heat enabled baseboard heat enabled Generic 4 20ma failure On Valves enabled fresh air damper enabled electric heat enabled baseboard heat enabled CO2 input failure On Valves enabled fresh air damper enabled electric heat enabled baseboard heat enabled Maintenance required On Valves enabled fresh air damper enabled electric heat enabled baseboard heat enabled Local fan mode failure On Valves enabled fresh air damper enabled electric heat enabled baseboard heat enabled Local setpoint failure On Valves enabled fresh air damper enabled electric heat enabled baseboard heat enabled Invalid unit configuration Off
97. es 1 The zone sensor entering water temperature sensor discharge air sensor and the outside air temperature sensor are 10KW thermistors 2 Zone sensor Wall mounted sensors include a thermistor soldered to the sensor s circuit board 3 Changeover units include an entering water temperature sensor Binary Outputs Binary outputs are configured to support the following Two fan stages when one or two fan stages are present J1 2 can be configured as exhaust fan BCXC SVX01B EN One hydronic cooling stage One hydronic heating stage dehumidification requires this to be in the reheat position One DX cooling stage One or two stage electric heat dehumidification requires this to be in the reheat position Face and bypass damper Modulating fresh air damper Tracer ZN520 only One stage baseboard heat 59 Table 29 Binary output configuration Binary output pin connection Configuration ZNO10 ZN510 ZN520 11 1 Fan high 1 2 N A 11 3 Fan low j1 4 Key e Fan low 1 5 Main valve open or 2 pos valve 2 11 6 Aux valve elec ht Aux valve close 11 7 2 5 damper 11 9 Heat valve open or 2 pos valve or first stage elec ht 11 10 Heat valve close or sec stage elec ht 11 11 Fresh air damper open 11 12 Fresh air damper close TB4 1 Generic baseboard heat output TB4 2 24 VAC Notes 1 If
98. f the filter frame To attach the mixing box to the filter frame insert screws through the matching the holes on all sides of the mixing box and filter frame 3 Install the linkage following the procedure below Linkage Installation Procedure 1 Attach the linkage on either the right or left side of the mixing box following the procedure below 2 Open the damper blades fully Locate drive rods on the LH or RH side for linkage attachment Loosen drive rod set screw without removing 3 Remove knockouts on side access panel adjacent to the drive rods Pierce a hole through the insulation at the knockouts to allow the drive rod to extend freely through side of mixing box Cut away insulation sufficiently to allow drive rod to turn smoothly Extend drive rod end at desired position beyond side of unit Tighten drive rod set screws Attach linkage and tighten all set screws Note that neither hand levers are provided However mixing box actuators are a factory provided option that ship inside the mixing box when ordered 7 Position linkage so both sets of dampers operate freely and so that when one damper is fully open the other is fully closed Condensate Drain Connections 36 Note It is the installer s responsibility to provide adequate condensate piping to prevent potential water damage to the equipment and or building Size the main drain lines and trap them the same size as the drain connection which is 3 4 schedu
99. g fan operation Unoccupied operation Fan mode off Requested mode off Diagnostic present No power to the controller Unit configuration Manual output test Unit wiring After power up the controller always observes a random start that varies between 0 and 30 seconds The controller remains off until the random start time expires When power up control wait is enabled non zero time the controller remains off until one of two conditions occurs 1 The controller exits power up control wait once it receives communicated information 2 The controller exits power up control wait once the power up control wait time expires When the fan mode switch is in the auto position the unit fan cycles off when there is no call for heating or cooling The heating cooling sources cycle on or off periodically with the unit fan to match the capacity according to pulse width modulation PWM logic The fan cycles with capacity when the unit is in unoccupied mode This occurs even if the unit is in continuous fan operation While unoccupied the fan cycles on or off with heating cooling to provide varying amounts of heating or cooling to the space to match the capacity diagnostics according to pulse width modulation PWM logic When using the local fan mode switch to determine the fan operation the off position controls the unit fan to off It is possible to communicate the operating mode such as off heat and cool to the controller When
100. g width in 15 5 19 5 19 5 31 5 31 5 31 5 31 5 Damper opening height in 7 7 7 7 12 75 12 75 12 75 Area sq ft 0 753 0 948 0 948 1 531 2 789 2 789 2 789 Velocity ft min 531 633 844 784 645 861 1076 Note Minimum air flow limits apply to units with hot water or electric heat only There is no minimum airflow limit on cooling on units Maximum airflow limits are to help prevent moisture carryover Table 33 BCBH BCVC valve package waterflow limits Tube size in gpm 1 2 8 6 3 4 19 3 1 34 3 1 1 4 53 5 BCXC SVX01B EN 65 e TRANE Maintenance 66 Table 34 BCHC BCVC coil general data Unit size 12 18 24 36 54 72 90 Nominal cfm 400 600 800 1200 1800 2400 3000 Hydronic amp DX coil data Area ft2 0 89 1 11 1 67 2 67 4 00 5 00 6 67 Width in 6 8 8 12 12 18 18 24 Length in 9 16 20 20 32 32 40 40 Velocity ft min 450 540 480 450 450 480 450 Hydronic coil data High capacity Area ft 0 89 1 11 1 67 2 67 3 89 4 86 6 25 Width in 9 8 8 12 12 17 5 17 5 22 5 Length in 16 20 20 32 32 40 40 Velocity ft min 450 540 480 450 463 494 480 1 row coil Minimum gpm 9 1 0 1 0 1 0 1 0 6 1 6 1 7 9 Maximum gpm P 5 2 5 2 5 2 5 2 32 6 32 6 42 0 Dry coil weight Ib 4 4 5 2 6 6 9 3 17 6 20 4 25 8 Wet coil weight Ib 5 1 6 0 7 8 11 0 22 4 26 0 32 9 Internal volume in3 19 4 22 2 33 2 47 1 132 9 155 1 196 6 2 row coil High capacity Minimum gpm 9 1 0 1 0 2 0
101. ge Unit Handling Procedure 1 Position rigging sling under wood skid using spreader bars to avoid unit damage 2 Use forklift with caution to prevent unit damage The fork length must be at least 68 inches long to safely fork the unit from front or back 3 The unit center of gravity will fall within the center of gravity block at various locations depending on unit options 4 Seeunit nameplate for unit weight Unit Location Recommendations When selecting and preparing the unit installation location consider the following recommendations BCXC SVX01B EN 13 e TRANE Pre Installation Skid Removal 1 Consider the unit weight Reference the unit weight on the unit nameplate or in Dimensions and Weights p 15 2 Allow sufficient space for the recommended clearances access panel removal and maintenance access Refer to Figure 2 p 13 3 The installer must provide threaded suspension rods for ceiling mounted units All units must be installed level 4 Coil piping and condensate drain requirements must be considered Allow room for proper ductwork and electrical connections Support all piping and ductwork independently of unit to prevent excess noise and vibration The unit ships on skids that provide forklift locations from the front or rear The skid allows easy maneuverability ofthe unit during storage and transportation Remove the skids before placing the unit in its permanent location Remove the ski
102. h as behind doors or in corners that do not allow free air circulation Air drafts from stairwells outside doors or unsectioned hollow walls Radiant heat from the sun fireplaces appliances etc Airflow from adjacent zones or other units Unheated or uncooled spaces behind the controller such as outside walls or unoccupied spaces Concealed pipes air ducts or chimneys in partition spaces behind the controller Zone Sensor Installation BCXC SVX01B EN Follow the procedure below to install the zone sensor module see Figure 3 Figure 3 Wall mounted zone sensor dimensions 1 00 275 24 1 1 4 50 16 X 38 2X 3 28 2 10 y ifi 34 VIEW WITH COVER REMOVED F NOT TO SCALE HH q w Omer 50 SIDE MEW FRONT VIEW BACK VIEW Note the position ofthe setpoint adjustment knob and gently pry the adjustment knob from the cover using the blade of a small screwdriver Insert the screwdriver blade behind the cover at the top of the module and carefully pry the cover away from the base To install the zone sensor module without a junction box directly to the wall a Usingthe module base as a template markthe rectangular cutout for the control wiring and module installation holes Ensure the base is level b Setthe base aside and make the cutout Then d
103. harge air temperature is controlled to maintain the space temperature at the current setpoint A typical scenario involves high humidity and high temperature load of the space The controller sets the cooling capacity to 10096 and uses the reheat capacity to warm the discharge air to maintain space temperature control Dehumidification may be disabled via Tracer or configuration Note If the unit is in the unoccupied mode the dehumidification routine will not operate Data Sharing Tracer ZN510 or ZN520 Only Because this controller utilizes LonWorks technology the controller can send or receive data setpoint heat cool mode fan request space temperature etc to and from other controllers on the communication link with or without the existence of a building automation system This applies to applications where multiple unit controllers share a single space temperature sensor for rooms with multiple units but only one zone sensor for both standalone with communication wiring between units and building automation system applications For this application you will need to use the Rover service tool For more information on setup refer to the Trane publication EMTX IOP 2 Binary Inputs Tracer ZN controllers have the following binary inputs factory configured for the following functions e Binary input 1 low temperature detection freezestat e Binary input 2 condensate overflow e Binary input 3 occupancy generic e
104. herwise none 1 row reheat 2 row hydronic high capacity reheat 4 row hydronic 6 row hydronic 2 row hydronic autochangeover 4 row hydronic autochangeover 6 row hydronic autochangeover 4 row hydronic high capacity 6 row hydronic high capacity 2 row hydronic high capacity autochangeover 4 row hydronic high capacity autochangeover 6 row hydronic high capacity autochangeover 3 row DX 3 16 distributor 0 032 4 row DX 3 16 distributor 0 032 6 row DX 3 16 distributor 0 032 3 row DX 3 16 distributor 0 049 4 row DX 3 16 distributor 0 049 6 row DX 3 16 distributor 0 049 own mJzz com How n UZzACcCIOm 2 e TRANE Digit 16 Motor Horsepower 0 none 4 1 1 1 3hp 5 1 1 2 hp 2 1 2 hp 6 2hp 3 3 4hp 7 3hp Digit 17 Motor Drives none 390 552 rpm 60 Hz 478 678 rpm 60 Hz 540 765 rpm 60 Hz 619 878 rpm 60 Hz 727 1029 rpm 60 Hz 879 1245 rpm 60 Hz 1000 1417 rpm 60 Hz 1200 1700 rpm 60 Hz 1313 1859 rpm 60 Hz 1615 2288 rpm 60 Hz 678 877 rpm 60 Hz 765 990 rpm 60 Hz 878 1136 rpm 60 Hz 1029 1332 rpm 60 Hz 1245 1611 rpm 60 Hz 1174 1519 rpm 50 Hz Digit 18 Electric Heat Stages 0 none 1 1 stage 2 2 stage Digits 19 20 21 Electric Heat dmuzzzrAcromnmuoou o 000 none 100 10 0 kW 010 1 0 kW 110 110kW 015 1 5 kW 120 12 0 kW 020 2 0 kW 130 13 0 kW 025 2 5 kW 1
105. ing valve Digit 28 Unit Coil 1 Control Valve Cv CTIToOmmooup o 0 none A 3 3 1 2 valve amp pipe B 330Ov 1 2 valve amp 3 4 pipe 3 8 1 2 valve amp 3 4 pipe D 6 6Cv 1 valve amp pipe E 740v 1 modulating valve amp pipe F 8 3 Cv 1 1 4 modulating valve amp pipe G 3 5 1 2 valve amp pipe 4 4 1 2 valve amp pipe J 70 Cv 3 way valve OR 6 0 Cv 2 way valve 1 valve amp pipe 8 0 1 valve amp pipe L 74 1 2 position valve amp pipe M 8 3 Cv 1 1 4 2 position valve amp pipe Q 1 3 Cv 1 2 valve 3 4 pipe R 1 8 Cv 1 2 valve 3 4 pipe T 2 3 Cv 1 2 valve 3 4 pipe U 2 7 Cv 1 2 valve 3 4 pipe 8 Digit 29 Unit Coil 1 Piping Package 0 none 1 basic piping package 2 deluxe piping package Digit 30 Unit Coil 2 Control Valve none 2 way 2 position n c 2 way 2 position n o 3 way 2 position n c 3 way 2 position 2 way modulating 3 way modulating field supplied valve 2 pos n c field supplied valve 2 pos n o field supplied modulating valve Digit 31 Unit Coil 2 Control Valve Cv none 3 3 Cv 1 2 valve amp pipe 3 3 Cv 1 2 valve amp 3 4 pipe 3 8 Cv 1 2 valve amp 3 4 pipe 6 6 Cv 1 valve amp pipe 74 Cv 1 modulating valve amp pipe 8 3 Cv 1 1 4 modulating valve amp pipe 3 5 Cv 1 2 v
106. int low limit 40 F 40 F 115 F Power up control wait 0 sec 0 sec 240 sec BCXC SVX01B EN Start Up Table 23 Local fan switch enabled Communicated Fan switch local Fan operation fan speed input Off Ignored Off Low Ignored Low High Ignored High Auto Off Off Low Low High High Auto Auto configured default determined by heat cool mode Table 24 Fan operation in heating and cooling modes Heating Cooling Fan mode Occupied Unoccupied Occupied Unoccupied Off Off Off Off Off Low Low Off high Low Off high High High Off high High Off high Auto continuous Default fan speed Off high Default fan speed Off high Two and Four Pipe Changeover Operation Tracer ZN controllers offer accurate and reliable unit changeover using 2 way valves and the controller s entering water temperature sampling function Only units using the main hydronic coil for both heating and cooling 2 pipe and 4 pipe changeover units use the entering water temperature sampling function Two pipe and 4 pipe changeover applications require an entering water temperature sensor to allow the main coil to be used for heating and cooling This sensor is factory provided and should be field installed on the entering water pipe The entering water temperature sampling function periodically opens the two way valve to allow temporary water flow producing reliable entering water temperature measurement To ensure accurate unit cha
107. iring schematic for specific wiring details and point to point wiring connections Dashed lines indicate field wiring on the unit wiring schematics All interconnection wiring must conform to NEC Class 2 wiring requirements and any state and local requirements Refer to Table 12 for the wire size range and maximum wiring distance for each device Table 12 Zone sensor maximum wiring distances ft m Wire size range Max wiring distance 16 22 AWG 200 60 96 Note Do not bundle or run interconnection wiring in parallel with or in the same conduit with any high voltage wires 110V or greater Exposure of interconnection wiring to high voltage wiring inductive loads or RF transmitters may cause radio frequency interference RFI In addition improper separation may cause electrical noise problems Therefore use shielded wire Beldon 83559 83562 or equivalent in applications that require a high degree of noise immunity Connect the shield to the chassis ground and tape at the other end Minimum Circuit Ampacity MCA and Maximum Fuse Size MFS Calculations for Units with Electric Heat Use these formulas to calculate the MCA and MFS Heater amps heater kW x 1000 heater voltage Note Use 120V heater voltage for 115V units Use 240V heater voltage for 230V units Use 480V heater voltage for 460V units Use 600V heater voltage for 575V units MCA 1 25 x heater amps all motor FLAs MFS or HACR type circuit breaker 2 25
108. ithm requires continuous fan operation in the occupied mode Fan Off Delay When a heating output is controlled off the Tracer ZN controller automatically holds the fan on for an additional 30 seconds This 30 second delay allows the fan to blow off any residual heat from the heating source such as a steam coil When the unit is heating the fan off delay is normally applied to control the fan otherwise the fan off delay does not apply Fan Start on High Speed On a transition from off to any other fan speed the Tracer ZN controller automatically starts the fan on high speed and runs the fan at high speed for 0 5 seconds This provides ample torque required to start all fan motors from the off position Fan Operation During Occupied Heating Modes The ZN520 fan output s normally run continuously during the occupied and occupied standby modes but cycle between high and off speeds with heating cooling during the unoccupied mode When in the occupied mode or occupied standby mode and the fan speed is set at the high or low position the fan runs continuously at the selected speed Referto Troubleshooting p 72 formore information on abnormal fan operation Table 21 Fan mode operation Tracer ZN010 and ZN510 Heating mode Cooling mode Fan mode Occupied Unoccupied Occupied Unoccupied Off Off Off Off Off Low Low Off high 2 Low Off high High High Off high 2 High Off high Auto continuous Heat default Off high
109. ition damper option opens to an adjustable mechanical stop position Tracer ZN010 and ZN510 Off Fan is off control valves and fresh air damper option close Low air temperature detection option is still active Auto Fan Cycling Fan and fresh air damper cycle with control valve option to maintain setpoint temperature If the unit has a 2 speed fan in cooling mode the fan cycles from off to high and in heating mode it cycles from off to low factory default that can be field adjusted using Rover service software When no heating or cooling is required the fan is off and the fresh air damper option closes Units with 2 speed fans can also be field configured using Rover to run at a defined speed when the fan speed switch is in the auto position Low or High Continuous Fan Fan operates continuously while control valve option cycles to maintain setpoint temperature Fresh air damper option is open Tracer ZN520 Off Fan is off control valve options and fresh air damper options close The low air temperature detection option is still active Auto Fan speed control in the auto setting allows the modulating three wire floating point control valve option and single or two speed fan to work cooperatively to meet precise capacity requirements while minimizing fan speed motor energy acoustics and valve position pump energy chilled water reset As the capacity requirement increases at low fan speed the water valve opens When the l
110. k nameplate unit data so that it matches the sales order requirements Unit Location O Remove crating from the unit Do not remove the shipping skid until the unit is set in its final position O Ensure the unit location is adequate for unit dimensions ductwork piping and electrical connections Ensure access and maintenance clearances around the unit are adequate Allow space at the end of the unit for shaft removal and servicing see Service Access p 12 Unit Mounting O Place unit in its final location O Remove shipping skid bolts and skid If using isolators properly mount unit according to the isolator placement sheet BCXC SVX01B EN e TRANE Pre Start Component Overview O Verify the fan and motor shafts are parallel O Verify the fan and motor sheaves are aligned O Check the belt tension for proper adjustment Adjust the belt tension if it is floppy or squeals continually O Ensure the fan rotates freely in the correct direction O Tighten locking screws bearing set screws and sheaves O Ensure bearing locking collars do not wobble when rotated and correct torque settings Refer to Table 31 p 64 for recommended torques O Verify that a clean air filter is in place Ductwork L1 If using return ductwork to the unit secure it with three inches of flexible duct connector O Extend discharge duct upward without change in size or direction for at least one and one half fan diameters 1
111. l Output Test p 73 The controller must be properly configured based on the actual installed end devices and application When the unit configuration does not match the actual end device the damper may not work correctly The wiring between the controller outputs and the fresh air damper must be present and correct for normal damper operation Refer to the unit wiring diagrams on the unit Table 49 Valves stay closed Probable cause Explanation Requested mode off You can communicate a desired operating mode such as off heat and cool to the controller When off is communicated to the controller the unit controls the fan off There is no heating or cooling valves are closed Power up control wait Manual output test Fan mode off Sampling logic Diagnostic present Unit configuration Unit wiring Random start observed When power up control wait is enabled non zero time the controller remains off until one of two conditions occurs The controller exits power up control wait once it receives communicated information The controller exits power up control wait once the power up control wait time expires The controller includes a manual output test sequence you can use to verify output operation and associated output wiring However based on the current step in the test sequence the valve s may not be open Refer to the Manual Output Test p 73 When a local fan mode switch provided o
112. lation Mechanical 4 Guide the threaded rod through the unit from the top careful not to damage insulation or wiring See Figure 5 Insert the threaded rod at an angle to help prevent internal unit damage Figure 5 When inserting the threaded rod though the unit knockouts angle it through the top careful not to damage unit coil or insulation 5 Puta nut and large flat washer or steel plate on the bottom of the threaded rod See Figure 6 Figure 6 Correct placement of washer or steel plate and nut between threaded rod and unit This helps prevent air leakage Washer Or Plate Put a nut and flat washer or steel plate on the top to prevent air leakage Thread the top of the rod into the isolator or turnbuckle Hoistthe unitto the suspension rods and attach with washers and lock nuts see Figure 4 p 33 for details 9 Level the unit for proper coil drainage and condensate removal from the drain pan Refer to Condensate Drain Connections p 36 10 Connect the ductwork to the unit Refer to Duct Connections p 37 Vertical Units Model BCVC Install vertical units on the floor Units are provided with legs that are field installed to help accommodate a U trap on the drain connection if necessary A field fabricated inlet plenum is not 34 BCXC SVX01B EN e TRANE Installation Mechanical required The unit is shipped in two pieces and can be arranged in either a pre swirl or counter swirl inlet config
113. le 40 PVC 1 050 O D on blower coils If drain pan removal is required make the main and auxiliary drain connections with compression fittings Follow the procedure below to remove the drain pan 1 Remove the opposite side coil access panel Remove the drain pan clips Disconnect drain lines Remove the sheet metal screw Pull out drain pan through the opposite side Note Prime drain traps to prevent the drain pan overflow BCXC SVX01B EN e TRANE Installation Mechanical Plug or trap the auxiliary connection to prevent air from being drawn in and causing carryover see Figure 8 Figure 8 Recommended drain trap installation for draw through units Drain Pan Water Level During Normal Operation _ H 1 of length for each 1 of negative pressure 1 additional J 1 2 of H L H J pipe diameter insulation All drain lines downstream of the trap must flow continuously downhill If segments of the line are routed uphill this can cause the drain line to become pressurized A pressurized drain line may cause the trap to back up into the drain pan causing overflow Duct Connections Install all air ducts according to the National Fire Protection Association standards for the Installation of Air Conditioning and Ventilation Systems other than Residence Type NFPA 90A and Residence Type Warm Air Heating and Air Conditioning Systems NFPA 90B Make duct connections to the uni
114. lication When the unit configuration does not match the actual end device the electric heat may not work properly If the controller does not have power the unit fan does not operate For the Tracer ZN010 510 controller to operate normally it must have an input voltage of 24 VAC When the green LED is off continuously the controller does not have sufficient power or has failed The wiring between the controller outputs and the electric heat contacts must be present and correct for normal electric heat operation Refer to the unit wiring diagrams on the unit Table 47 Fresh air damper stays closed Probable cause Explanation Warm up and cool down Requested mode off Manual output test Diagnostic present Unit configuration No power to the controller Unit wiring The controller includes both a warmup and cooldown sequence to keep the fresh air damper closed during the transition from unoccupied to occupied This is an attempt to bring the space under control as quickly as possible It is possible to communicate the operating mode such as off heat cool to the controller When off is communicated to the controller the unit closes the fresh air damper The controller includes a manual output test sequence that verifies analog and binary output operation and associated output wiring However based on the current step in the test sequence the fresh air damper may not be open Refer to the Manual Output Te
115. lt 1 phase e 2 position valves e 2 position damper e 2 motor e condensate overflow NOTES 1 UNLESS OTHER SSE gt ALL SWITCHES ARE au 115 60 1 DEVICE PREFIX LOCATION CODE LEGEND Bee REI rouble ITH ALL UTILITIES TUR NED N H AREA LOCATION DEVICE DESCRIPTION LINE 1 888 AN RUM NORMA SHUTDOWN MAS OCCURED ME 1 CONTROL PANEL DESIGNATION NUMBER 2 DASHED LINES INDICATE RECOMMENDED FIELD RING NG r 3 01 2 SUPPLY AND COIL SECTION 1681 TRANSFORMER CIRCUIT BREAKER 16 2 OTHERS DASHED H SURES AND DASHED 3 1K1 1K2 SUPPLY FAN CONTACTOR 20 22 s DUTIES INOICATE E GONG WIRING BY o tit tH 4 MIXING BOX SECTION 151 MANUAL DISCONNECT SWITCH 7 j TRANE CO 11 T1 5 EXTERNAL PIPING 111 CONTROL POWER TRANSFORMER 16 1 11 1 1 756 6 1 L1 1 L2 CONTROL TERMINAL BLOCK 3 ALL FIELD WIRING MUST BE IN ACCORDANCE THE 1 mi NATIONAL ELECTRIC CODE 125 STATE AND LOCAL it Wt 7 FIELD INSTALLED DEVICE 1U1 TERMINAL UNIT CONTROLLER 18 fe REQUIREMENTS Lp X4 281 SUPPLY FAN MOTOR 11 1 1 2RT1 DISCHARGE AIR TEMP SENSOR 53 4 NUMBERS ALONG THE RIGHT SIDE OF THE SCHEMATI 5 DESIGNATE THE LOCATION OF CONTACTS BY LINE NUMBER nam
116. m M JP GR ER DES z BLUE CONNECTORS USED FOR COOLING CIRCUIT b lt BLUE NNECTORS USED FOR HEATING 1K1 227 758 FUSED DISCONNECT SWITCH 3 12 BLUE WIRES USED FOR COOLING run A e le 6A WIRES USED FOR HEATING CIRCUIT BLK GRN 706 ZONE SENSOR MODULE 20 13 PLUG CONNECTOR 4 CONNECTOR u BLK RED 15 1CB1 171 1781 12 16 W BLK of So BLU YEL X B BLK 75 1 12 M b WHT 17 E 11 1U1 18 118174 BLK 1 1 24V POWER GND TB1 2b 2 19 1 1 J1 7065 20 ex BLK HIGH SPEED ZONE 1 41 ZONE 1 1 10 12 1181 1110 75 1 1 ho eee i4A YEL f2 EXHAUST GND TB3 2b d2 10 1 2 22 SET 3 d3 csP 1TB1 L K 1P271 5 3 21 354080 BLK SPLICE 5 2 8 182 2 0 21 aN ec 23 sr nO 2 Prz p5 OPEN FAN TB3 4p 44 FAN SWITCH spyce 5P3 3 1P2 3 CLG HTG 24 is DOM 23 3 12 3 55 66 CLOSE 46 COMM LOW 17B1 Li M 1 4 1 BP5Z 5P5 2 1 4 2 25 we ES ma TER aL c Ser 2 8 d5 COMM HI 8 5P5 3 1P4 3 26 16477225 3 194 3 200 00 CLOSE eam 3 248 1 146 1 27 EWHT e B 12 11 1 TB2 3b 146 3 4 8 1 AE d 1P1 11 OAD m J8 2 28 B BLK Bs 13A BRN 1 2 close TB2 2b 16 4 V 2 1P6 2 1P1 12 coM 29 p
117. matte faced 2 1 foil faced Digits 10 11 Design Sequence AO Digit 12 Motor Drive and Control Box Location A same side as coil connections horizontal or counterswirl only opposite side from coil connections horizontal or counterswirl only C same side as coil connections pre swirl only D opposite side from coil connections pre swirl only R right hand access L left hand access Digit 13 Drain Pan Type Coil amp Drain Connection Side 0 none 1 polymer drain pan amp right hand connections 2 polymer drain pan amp left hand connections 3 stainless steel drain pan amp right hand connections 4 stainless steel drain pan amp left hand connections BCXC SVX01B EN Digit 14 Unit Coil 1 Note All coils hydronic unless stated otherwise none 1 row preheat 2 row hydronic high capacity preheat 4 row hydronic 6 row hydronic 4 row hydronic autochangeover 6 row hydronic autochangeover 4 row hydronic high capacity 6 row hydronic high capacity 4 row hydronic high capacity autochangeover 6 row hydronic high capacity autochangeover 3 row DX 3 16 distributor 0 032 4 row DX 3 16 distributor 0 032 6 row DX 3 16 distributor 0 032 3 row DX 3 16 distributor 0 049 4 row DX 3 16 distributor 0 049 6 row DX 3 16 distributor 0 049 Digit 15 Unit Coil 2 Note All coils are hydronic unless stated ot
118. n mode failure e CO sensor failure e Generic AIP failure e Humidity input failure e Defrosting compressor lockout e Maintenance required e Invalid Unit Configuration e Generic temperature failure e Discharge air low limit Resetting Diagnostics BCXC SVX01B EN There are seven ways to reset unit diagnostics Automatically by the controller By initiating a manual output test at the controller By cycling power to the controller By using a building automation system Tracer ZN510 or ZN520 only By using the Rover service tool oa PWN gt By using any other communicating device able to access the controller s diagnostic reset input Tracer ZN510 or ZN520 only 7 By cycling the fan switch from off to any speed setting Tracer ZN520 only Automatic Reset by the Controller The controller includes an automatic diagnostic reset function which attempts to automatically restore the unit when a low temperature diagnostic occurs Note The controller implements the automatic diagnostic reset function only once every 24 hours For the controller to increment the 24 hour timer you must maintain power to the controller Cycling power resets all timers and counters After the controller detects the first low temperature diagnostic the unit waits 30 minutes before invoking the automatic diagnostic reset function The automatic diagnostic reset function clears the special diagnostic and attempts to restore the controller to n
119. n the Trane zone sensor determines the fan operation the off position controls the unit off and valves to close The controller includes entering water temperature sampling logic which is automatically invoked during 2 pipe and 4 pipe changeover when the entering water temperature is either too cool or too hot for the desired heating or cooling Refer to Entering Water Temperature Sampling Function p 55 A specific list of diagnostic affects valve operation For more information see Table 41 p 77 and Table 42 p 77 The controller must be properly configured based on the actual installed end devices and application When the unit configuration does not match the actual end devices the valves may not work correctly Example A 2 pipe heat cool changeover unit will not cool if the entering water temperature is too warm for cooling or if the entering water sensor is not present The unit will not heat if the entering water temperature is too cool for heating The wiring between the controller outputs and the valve s must be present and correct for normal valve operation After power up the controller always observes a random start from 0 to 25 seconds The controller remains off until the random start time expires Table 50 DX or electric outputs do not energize Probable cause Explanation Unit wiring Unit configuration Diagnostic present Manual output test Freeze avoidance Normal operation 80
120. nce that concealed damage did not occur after delivery O Do not continue unpacking the shipment if it appears damaged Retain all internal packing cartons and crate Take photos of damaged material if possible O Notify the carrier s terminal of the damage immediately by phone and mail Request immediate joint inspection of the damage by the carrier and consignee O Notify your Trane representative of the damage and arrange for repair Have the carrier inspect the damage before making any repairs to the unit O Compare the electrical data on the unit nameplate with the ordering and shipping information to verify the correct unit is received Jobsite Storage Recommendations BCXC SVX01B EN This unit is intended for indoor use only To protect the unit from damage due to the elements and prevent it from possibly becoming a contaminant source for IAQ problems store the unit indoors If indoor storage is not possible the Trane Company makes the following provisions for outdoor storage 1 Place the unit s on a dry surface or raised off the ground to assure adequate air circulation beneath unit and to assure that no portion of the unit contacts standing water at any time 2 Cover the entire unit with a canvas tarp only Do not use clear black or plastic tarps as they may cause excessive moisture condensation and equipment damage Note Wet interior unit insulation can become an amplification site for microbial growth mola
121. ne initial values e the random start time 0 25 seconds expires and normal operation begins Tracer ZN Modes of Operation Tracer ZN controllers operate the fan in one of the modes listed below as noted e occupied e unoccupied e occupied standby Tracer ZN510 ZN520 only e occupied bypass Tracer Summit with supply fan control Tracer ZN510 or ZN520 only Note The Tracer ZN520 controller operates the supply fan continuously when the controller is in the occupied and occupied standby modes for either heating or cooling The controller only cycles the fan off with heating and cooling capacity in the unoccupied mode When the communicated occupancy request is unoccupied the occupancy binary input if present does not affect the controller s occupancy When the communicated occupancy request is occupied the controller uses the local occupancy binary input to switch between the occupied and occupied standby modes Occupancy Sources There are four ways to control the Tracer ZN controller s occupancy as noted below 1 By pressing the zone sensor s timed override on button 2 Occupancy binary input either normally open or normally closed see Table 18 for occupancy sensor states BCXC SVX01B EN BCXC SVX01B EN 3 Default operation of the controller occupied mode 4 Communicated request usually provided by the building automation system BAS or peer device available on Tracer ZN510 and ZN520 only
122. ne layer when released to the atmosphere In particular several of the identified chemicals that may affect the ozone layer are refrigerants that contain Chlorine Fluorine and Carbon CFCs and those containing Hydrogen Chlorine Fluorine and Carbon HCFCs Not all refrigerants containing these compounds have the same potential impact to the environment Trane advocates the responsible handling of all refrigerants including industry replacements for CFCs such as HCFCs and HFCs Responsible Refrigerant Practices Trane believes that responsible refrigerant practices are important to the environment our customers and the air conditioning industry All technicians who handle refrigerants must be certified The Federal Clean Air Act Section 608 sets forth the requirements for handling reclaiming recovering and recycling of certain refrigerants and the equipment that is used in these service procedures In addition some states or municipalities may have additional requirements that must also be adhered to for responsible management of refrigerants Know the applicable laws and follow them Z WARNING Refrigerant warning information System contains oil and refrigerant under high pressure Recover refrigerant to relieve pressure before opening the system See unit nameplate for refrigerant type Do not use non approved refrigerants refrigerant substitutes or refrigerant additives Failure to follow proper procedures or the use of non approv
123. ne so the refrigerant vapor leaving the coil flows downward below the suction header outlet before turning upward Pitch the suction line slightly 1 in 10 ft 1 cm 3 m so the refrigerant drains toward the evaporator Insulate the suction line Figure 10 Field installed evaporation piping example Evaporator Coil with Standard Circuiting suction line 6 7 4 i thermal solenoid filter drier expansion valve valve TXV 3 5 distributor BCXC SVX01B EN Steam Piping BCXC SVX01B EN e TRANE Installation Piping Proper installation piping and trapping is necessary to insure satisfactory heating coil operation and prevent operational damage under service conditions These installation recommendations and piping diagram see Figure 11 p 42 must be followed to assure satisfactory trouble free operation General 1 Support all piping independently of coils 2 Provide swing joints or flexible fittings in all piping connections adjacent to heating coils to absorb expansion and contraction strains 3 Install coils so air passes through fins in proper direction stenciled on top of coil channel Steam Coils NOTICE Coil Condensate Condensate must flow freely from the coil at all times to prevent coil damage from water hammer unequal thermal stresses freeze up and or corrosion In all steam coil installations the condensate return connections must be at the low point
124. ngeover without sacrificing the benefits of 2 way 2 position valves Tracer ZN controllers periodically test the entering water temperature on all hydronic main coil changeover units Hydronic heating cooling changeover operation requires central plant operation and the unit controller must use an entering water temperature sensor to verify delivery ofthe correct water temperature from the central plant Entering Water Temperature Sampling Function The entering water temperature EWT must be five degrees above the space temperature for hydronic heating and five degrees below the space temperature for hydronic cooling When water BCXC SVX01B EN 55 flows normally and frequently through the coil the controller does not invoke the sampling function because the EWT is satisfactory Table 25 Unit mode as related to water temperature Unit type EWT sensor required Coil water temperature 2 pipe changeover Yes Can cool if space temp EWT gt 5 F Can heat if EWT space temp gt 5 F 4 pipe changeover Yes Can cool if space temp EWT gt 5 F Can heat if EWT space temp gt 5 F 2 pipe heating only No Hot water assumed 2 pipe cooling only No Cold water assumed 4 pipe heat cool No Cold water assumed in main coil Hot water assumed in auxiliary coil However when the controller detects an incorrect water temperature based on heating or cooling mode it invokes the entering water tempera
125. nit has a electric heat power and ground connections are inside the electric heat control box connected to a non fused disconnect switch or terminal block Electrical Grounding Restrictions BCXC SVX01B EN WARNING Hazardous Voltage Disconnect all electric power including remote disconnects before servicing Follow proper lockout tagout procedures to ensure the power can not be inadvertently energized Failure to disconnect power before servicing could result in death or serious injury All sensor and input circuits are normally at or near ground common potential When wiring sensors and other input devices to the Tracer ZN controller avoid creating ground loops with grounded conductors external to the unit control circuit Ground loops can affect the measurement accuracy of the controller Note Unittransformer IT1 provides power to the blower coil unit only and is not intended for field connections Field connections to the transformer IT1 may cause immediate or premature unit component failure All input output circuits except isolated relay contacts and optically isolated inputs assume a grounded source either a ground wire at the supply transformer to control panel chassis or an installer supplied ground Note Do not connect any sensor or input circuit to an external ground connection The installer must provide interconnection wiring to connect wall mounted devices such as a zone sensor module Refer to the unit w
126. no valves are ordered with the unit the factory default for Tracer ZNO10 and ZN510 controllers are main valve configured as normally closed and aux valve configured as normally open 2 If the fresh air damper option is not ordered on the unit 2 pos damper is configured as none 3 Pin J 1 2 can be configured for an exhaust fan with the use of Rover software Factory default is none a Two pipe hydronic heat cool changeover units use terminals J 1 5 and J 1 6 to control the primary valve for both heating and cooling Units configured and applied as 2 pipe hydronic heat cool changeover with electric heat use terminals J 1 5 and 1 6 to control the primary valve for both cooling and heating and terminals J 1 9 and J 1 10 for the electric heat stage For those 2 pipe changeover units electric heat will not energize while the hydronic supply is hot 5 or more degrees above the space temperature In a 4 pipe application pin J 1 5 is for cooling and pin J 1 6 for heating Zone Sensor The Tracer ZN controller accepts the following zone sensor module inputs e Space temperature measurement 10kW thermistor e Local setpoint either internal or external on the zone sensor module e Fan mode switch e Timed override using on and cancel buttons Tracer ZN510 and ZN520 only Communication jack Tracer ZN510 and ZN520 only Table 30 Zone sensor wiring connections TB1 Description Space temperature Common Setpoin
127. of the coil Failure to follow these instructions could result in equipment damage 1 Install 1 2 inch 15 degree swing check vacuum breaker in unused condensate return tapping as close as possible to coil Vent vacuum breaker line to atmosphere or connect into return main at discharge side of steam trap Vacuum relief is particularly important when coil is controlled by modulating steam supply or two position on off automatic steam supply valve 2 Proper steam trap selection and installation is necessary for satisfactory coil performance and service life a Select trap based on maximum possible condensate rate and recommended load factors b Locate steam trap discharge at least 12 inches below condensate return tapping This provides sufficient hydrostatic head pressure to overcome trap losses and assure complete condensate removal c Float and thermostatic traps are preferred because of gravity drain and continuous discharge operation d Use float and thermostatic traps with atmospheric pressure gravity condensate return with automatic controls or where possibility of low pressure supply steam exists e Bucket traps should only be used when supply steam is unmodulated and 25 psig or higher f When installed with series airflow size traps for each coil using capacity of first coil in airflow direction g Always trap each coil separately to prevent condensate holdup in one or more coils h Always install strainers as close as
128. oller disables economizing and moves the fresh air damper back to its predetermined minimum position based on the current occupancy mode or communicated minimum damper position Table 26 Relationship between outdoor temperature sensors and economizer damper position Tracer ZN520 only Modulating fresh air damper Outdoor air temperature occupied or occupied bypass Occupied standby Unoccupied None or invalid Open to occupied minimum Open to occupied standby minimum Closed position position Failed Open to occupied minimum Open to occupied standby Closed position Present and economizer Economizing minimum position Economizing between occupied Open and economizing only when feasible to 100 standby minimum position to 10096 unit operating closed otherwise Present and economizer not Open to occupied minimum Open to occupied standby minimum Closed feasible position position Tracer Dehumidification Tracer ZN520 Only Dehumidification is possible when mechanical cooling is available the heating capacity is located in the reheat position and the space relative humidity setpoint is valid The controller starts dehumidifying the space when the space humidity exceeds the humidity setpoint The controller continues to dehumidify until the sensed humidity falls below the setpoint minus the relative humidity offset The controller uses the cooling and reheat capacities simultaneously to dehumidify the space While dehumidifying the disc
129. one sensor NOTES 1 UNLESS OHER SE ALL SWITCHES ARE SHO UNLES CE ERWISE N SN CHES ARE SH WN 4560 60 3 DEVICE PREFIX LOCATION CODE LEGEND 2 RECA VE ITH ALL ES TURNED 1 12 15 AREA DEVICE DESCRIPTION LINE OFF AND AFTER A NORMAL SHUTDOWN HAS OCCURED 11 1 CONTROL PANEL DESIGNATION NUMBER 2 DASHED LINES INDICATI RECOMMENDED FIELD WIRI r 4 21 1 2 SUPPLY FAN AND COIL SECTION 1 1 TRANSFORMER CIRCUIT BREAKER 16 2 Bevice QU NER NoNe t 4 BENET AND OR SHED rey 47 3 1 1 SUPPLY FAN CONTACTOR 20 1 4 44 4 MIXING BOX SECTION 181 MANUAL DISCONNECT SWITCH 7 BY IHE FIELD SOLID LINES INDICATI IRING BY A 3 TRANE CO MESOS YIN 4 dH 5 EXTERNAL PIPING Tri CONTROL POWER TRANSFORMER 16 A 1 1756 6 1181 41 12 CONTROL TERMINAL BLOCK AL FIELD WIRING MUST IN ACCORDANCE WITH THE im m mi NATIONA Et ESM NEC STATE AND 19 7 FELD INSTALLED DEVICE iut COMFORT LINK CONTROLLER 18 REQUIREMENTS he a Se 281 SUPPLY FAN MOTOR 11 4 NUMBERS ALONG THE RIGHT SIDE OF THE SCHEMATIC b M 2RT DISCHARGE AIR TEMP SENSOR 33 5 DESIGNATE THE LOCATION OF CONTACTS BY LINE NUMBER wl ul A 252 CONDENSATE OVERFLOW SWITCH 32 lt 5 SUPPLIED CONTROL RELAYS POWERED BY THIS UNIT 2 S 26 36 6 UST BE PILOT DUTY RATED 24 COIL 6 MAX Go 255 FAN STATUS SWITCH 36 lt WIRING ZONE SENSOR MUST RE E 15 22 AWS CU eu BUG
130. onnects before servicing Follow proper lockout tagout procedures to ensure the power can not be inadvertently energized Failure to disconnect power before servicing could result in death or serious injury Installing the Unit Follow the procedures below to install the blower coil unit Horizontal Units Model BCHC Install horizontal units suspended from the ceiling with 3 8 threaded rods that are field provided There are two knockouts in each corner of the unit for installation of the threaded rods Ensure the ceiling opening is large enough for unit installation and maintenance requirements BCHC Installation Procedure Materials needed e threaded rods 3 8 4 e nuts 8 e flat washers or steel plates 8 e vibration isolator hangers or turnbuckles 4 1 Determine the unit mounting hole dimensions Prepare the hanger rod isolator assemblies which are field provided and install them inthe ceiling Trane recommends using threaded rods to level the unit Consult the unit nameplate or Dimensions and Weights p 15 in this manual for the unit weight See Figure 4 for proper horizontal unit installation Figure 4 How to hang the horizontal unit from the ceiling Vibration Isolation Hanger Use 3 8 Dia Hanger Rods Vibration Isolation Hanger 2 Remove motor access panels and filter access panels 3 Punch out the eight knockouts in the top and bottom panels BCXC SVX01B EN 33 e TRANE Instal
131. ontrol valve option cycle as needed 2 position control valve option opens to an adjustable mechanical stop position Low or high continuous fan ZN520 fan operates continuously at selected speed modulating control valve option cycles as needed Auto cycling ZNO010 ZN510 fan 2 position damper cycle and control valve cycle as needed in cooling mode fan cycles from off to high in heating mode fan cycles from off to low when heating cooling is not required the fan is off and the 2 position damper option closes Auto ZN520 fan cycles between high and medium and never turns off unless the controller is in unoccupied mode modulating 2 position control open to maintain setpoint During dehumidification when the fan is in auto the fan speed can switch depending on the error The fan speed increases as the space temperature rises above the active cooling setpoint 52 BCXC SVX01B EN BCXC SVX01B EN Additional flexibility built into the controller allows you to enable or disable the local fan switch input The fan mode request can be hardwired to any of the Tracer ZN controllers or communicated to the Tracer ZN510 or ZN520 controller When both inputs are present the communicated request has priority over the hardwired input See Table 19 p 52 Fan Speed Switch Off Fan is turned off two position damper option spring returns closed High or Low Fan runs continuously at the selected speed The two pos
132. ontroller determines the EWT is valid for heating or cooling it resumes normal heating cooling control and effectively disables entering water temperature sampling until it is required Electric Heat Operation Tracer ZN controllers support 1 stage electric heat Also Tracer ZN520 supports 2 stage electric heat Tracer ZN520 cycles the electric heat to control the discharge air temperature The rate of cycling is dependent upon the load in the space and the temperature of the incoming fresh air from the economizer if any Two pipe changeover units with electric heat use the electric heat only when hot water is not available Economizer Damper Tracer ZN520 Only 56 With a valid outdoor air temperature either hardwired or communicated Tracer ZN520 uses the modulating economizer damper as the highest priority cooling source Economizer operation is only possible using a modulating damper during the occupied occupied standby unoccupied and occupied bypass modes The controller initiates the economizer function if the fresh air temperature is cold enough for use as free cooling capacity If the fresh air temperature is less than the economizer enable setpoint absolute dry bulb the controller modulates the fresh air damper between the active minimum damper position and 10096 to control the amount of fresh air cooling capacity When the fresh air BCXC SVX01B EN temperature rises 5 F above the economizer enable point the contr
133. ontroller s response to low temperature detection condensate overflow and fan status diag nostics c The generic binary input does not affect unit operation A building automation system reads this input as a generic binary input BIP Description Fan Valve Electric heat Damper BI 1 Low temperature detection Off Open Off Closed BI 2 Condensate overflow Off Closed Off Closed BI 4 Fan status Off Closed Off Closed BCXC SVX01B EN Start Up Analog Inputs See Table 28 for a complete description of analog inputs Table 28 Analog inputs Analog input Terminal Function Range ZNO10 ZN510 ZN520 Zone TB3 1 Space temperature input 5 to 122 F 15 to 50 C Ground TB3 2 Analog ground N A Set TB3 3 Setpoint input 40 to 115 F 4 4 to 46 1 C e e Fan TB3 4 Fan switch input 4821 to 4919 W Off 2297 to 2342 W Auto 10593 to 10807 W Low 15137 to 16463 W High Ground TB3 6 Analog ground N A Analog Input 1 13 1 Entering water temperature 40 to 212 F 40 to 100 C 3 2 Analog ground N A Analog Input 2 3 3 Discharge air temperature 40 to 212 F 40 to 100 C 3 4 Analog ground N A Analog Input 3 3 6 Fresh air temp generic temp 40 to 212 F 40 to 100 C Analog ground N A Analog Input 4 13 7 Universal Input 0 100 Generic 4 20 ma 0 100 Humidity 0 2000ppm CO Ground 3 8 Analog ground N A Ground 3 9 Analog ground N A Not
134. ormal operation The controller resumes normal operation until another diagnostic occurs Note The automatic diagnostic reset function does not operate during the manual output test sequence If a special diagnostic occurs within 24 hours after an automatic diagnostic reset the controller must be manually reset Other possible methods of resetting diagnostics are described in the sections that follow 1 Non latching diagnostics automatically reset when the input is present and valid 75 e TRANE Diagnostics 76 Manual Output Test You can use the Test button on the controller either during installation to verify proper end device operation or during troubleshooting When you press the Test button the controller exercises all outputs in a predefined sequence The first and last outputs of the sequence reset the controller diagnostics See p 73 for more information about the manual output test Cycling Power When someone turns off the controller s 24 VAC power then re applies power the unit cycles through a power up sequence By default the controller attempts to reset all diagnostics at power up Diagnostics present at power up and those that occur after power up are handled according to the defined unit diagnostics sequences see Table 41 p 77 and Table 42 p 77 Building Automation System Tracer ZN510 or ZN520 Only Some building automation systems can reset diagnostics in the Tracer ZN510 or ZN520 controller
135. ow fan speed capacity switch point is reached the fan switches to high speed and the water valve repositions to maintain an equivalent capacity The reverse sequence takes place with a decrease in required capacity Units with 2 speed fans on low or high The fan will run continuously at the selected speed and the valve option will cycle to meet setpoint Continuous Fan Operation During occupied and occupied standby modes the fan normally is on For multiple speed fan applications the fan normally operates at the selected or default speed off high or low When fan mode is auto the fan operates at the default fan speed During unoccupied mode the fan is off While unoccupied the controller will heat or cool to maintain the unoccupied heating and cooling setpoints In unoccupied mode the fan runs on high speed only with heating or cooling See Table 24 p 55 The unit fan is always off during occupied occupied standby and unoccupied modes when the unit is off due to a diagnostic or when the unit is in the off mode due to the local zone sensor module a communicated request or the default fan speed off If both a zone sensor module and communicated request exist the communicated request has priority See Table 23 p 55 53 54 Fan Cycling Operation Tracer ZN520 does not support fan cycling in occupied mode The fan cycles between high speed and off in the unoccupied mode only The controller s cascade control algor
136. ow is blocked or if filters are dirty 2 Check the condition and tension of fan belts Adjust tension if belts are floppy or squeal continually Replace worn or fraying belts in matched sets Note Check and adjust belt tension at least twice daily the first days of new belt operation Belt tension will rapidly decrease until the belts are run in 3 Re lubricate motor bearings if motor is fitted with oil tubes and operating conditions include moist or dirty air continuous duty and or high temperatures Semi Annual Maintenance 1 Verify the fan motor is properly lubricated Follow lubrication recommendations on the motor tag or nameplate Contact the motor manufacturer for more information 2 With power disconnected manually rotate the fan wheel to check for obstructions in the housing or interference with fan blades Remove any obstructions and debris 3 Check the fan assembly sheave alignment Tighten set screws to their proper torques 4 Check fan belt tension Adjust if belt is slipping Replace if belt is worn or frayed 5 Inspect the coils for dirt build up Clean fins if airflow is clogged Annual Maintenance Check and tighten all set screws bolts locking collars and sheaves 1 Inspect clean and tighten all electrical connections and wiring BCXC SVX01B EN e TRANE Maintenance 2 Visually inspect the entire unit casing for chips or corrosion Remove rust or corrosion and repaint surfaces 3 Clean fan wheel
137. possible to inlet side of trap 3 Use V port modulating valves to obtain gradual modulating action or slow opening 2 position valves to prevent steam hammer Note Contact the factory for recommendations regarding steam coil valve selections compatible with Tracer ZN controllers 4 Use normally open non modulating control valves if coils are exposed to freezing air Note Contact the factory for recommendations regarding steam coil valve selections compatible with Tracer ZN controllers 5 Control each coil bank separately when installing coils for series airflow with automatic steam control valves 41 e TRANE Installation Piping 42 10 11 Do not modulate steam or use on off supply control on systems with overhead or pressurized returns unless condensate is drained by gravity to receiver vented to atmosphere and returned to main by condensate pump At startup with dampers slowly turn steam on full for at least 10 minutes before opening fresh air intake Pitch all supply and return steam piping down a minimum of one inch per 10 feet in direction of flow Do not drain steam mains or take offs through coils Drain mains ahead of coils through steam trap to return line Do not bush or reduce coil return tapping size Run return pipe full size of steam trap connection except for short nipple screwed directly into coil condensate connection Overhead returns require 1 psig pressure at steam trap discharge for
138. r manual ball shutoff valves access port and possibly a solenoid valve Position these components as close to the evaporator as possible e Thermal expansion valve TEV Select the TEV based on the actual evaporator capacity considering the full range of loadings Verify that the valve will successfully operate at the lightest load condition considering if hot gas bypass is to be used For improved modulation choose a TEV with balanced port construction and an external equalizer connection The valve must be designed to operate against a back pressure of 20 psi higher than actual evaporator pressure Install the TEV directly on the coil liquid connection distributor provided The remote expansion valve bulb should be firmly attached to a straight well drained horizontal section of the suction line The external equalizer line should be inserted downstream of the remote bulb e Moisture indicating sight glass Install a moisture indicating sight glass in the liquid line between the expansion valve and filter drier The sight glass should be sized to match the size of the liquid line Filter drier Install a properly sized liquid line filter drier upstream from the expansion valve and as close to the evaporator coil as possible Select the filter drier for a maximum pressure drop of 2 psi at the design condition Manual ball type shutoff valves on either side ofthe filter drier allows replacement of the core without evacuating the
139. resentative Trademarks Trane the Trane logo Frostat Integrated Comfort Rover Tracer and Tracer Summit are trademarks of Trane in the United States and other countries All trademarks referenced in this document are the trademarks of their respective owners 4 BCXC SVX01B EN Table of Contents BCXC SVX01B EN Model Number Description 00 0000 cece eect eas 7 General Information 9 Pre Installation 11 Receiving and Handling 11 Jobsite Storage 11 Installation 12 Service ACCESS wre sos ux 12 Rigging and Handling 13 Unit Location 13 Skid Removal unsere b es ea pee Er imus ee wh dod 14 Pre Installation Checklist 0 cc cece eee eee ee 14 Dimensions and Weights 15 Horizontal Blower Coil _ 15 Vertical Blower Coil 16 Angle Filter and Mixing
140. rigeration piping practices and safety precautions for typical refrigerant coil piping and components Specific recommendations are provided with the compressor unit including instructions for pressure testing evacuation and system charging Leak test the entire refrigerant system after all piping is complete Charge the unit according to approximate weight requirements operating pressures and superheat subcooling measurements Adjust the thermal expansion valve setting if necessary for proper superheat Liquid Line Line Sizing Properly sizing the liquid line is critical to a successful application If provided use the liquid line size recommended by the manufacturer of the compressor unit The selected tube 38 BCXC SVX01B EN BCXC SVX01B EN e TRANE Installation Piping diameter must be as small as possible while still providing at least 5 F 2 7 C of subcooling at the expansion valve throughout the operating envelope Routing Install the liquid line with a slight slope in the direction of flow so that it can be routed with the suction line Minimize tube bends and reducers because these items tend to increase pressure drop and reduce subcooling at the expansion valve Insulation The liquid line is generally warmer than the surrounding air so it does not require insulation Components Liquid line refrigerant components necessary for a successful job include an expansion valve moisture indicating sight glass filter drie
141. rill two 3 16 diameter holes approximately one inch deep Insert and fully seat the plastic anchors c Pull the control wires through the cutout and attach the module to the wall using the screws provided To install the zone sensor module to a standard junction box a Level and install a 2 x 4 junction box installer supplied vertically on the wall 25 e TRANE Installation Controls Communication 26 b Pull the control wires through the cutout Attach the module to the wall using the screws provided Strip the insulation the interconnection wires back 0 25 inch and connect to TB1 Screw down the terminal blocks 6 Replace the zone sensor cover and adjustment knob If installing a Tracer ZN510 or ZN520 zone sensor see Tracer Summit Communication Wiring p 27 for more information Wiring Units with Tracer ZN510 or ZN520 only Note Communication link wiring is a shielded twisted pair of wire and must comply with applicable electrical codes Follow these general guidelines when installing communication wiring on units with either a Tracer ZN510 or ZN520 controller e Maintain a maximum 5000 ft aggregate run e Install all communication wiring in accordance with the NEC and all local codes e Solder the conductors and insulate tape the joint sufficiently when splicing communication wire Do not use wire nuts to make the splice e Do not pass communication wiring between buildings because the
142. s and fan shaft Remove any rust from the fan shaft with an emery cloth and recoat with L PS 3 or equivalent 4 Inspect the drainpan for sludge or other foreign material Clear the drain openings and drain line to ensure adequate flow 5 Rotate the fan wheel and check for obstructions in the fan housing The wheel should not rub on the fan housing or cutoff Adjust to center if necessary and tighten the wheel set screws per the torque recommendations in Table 31 p 64 Examine flex connector for cracks or leaks Repair or replace any damaged duct material BCXC SVX01B EN 71 e TRANE Diagnostics Troubleshooting LED Activity 72 Red Service LED The red LED normally indicates if the unit controller is operating properly or not Refer to Table 36 Table 36 Red service LED activity LED activity Description Off continuously after power is applied to the controller Normal operation On continuously even when power is first applied to the Someone is pressing the Service button or the controller controller has failed LED flashes about once every second Uninstall normal controller mode Use Rover service tool to restore normal unit operation Black Service push button Use the Service button to install the Tracer ZN520 controller in a communication network Green Status LED The green LED normally indicates whether the controller is powered on 24 VAC supplied Refer to Table 37 Table
143. s to verify the system is leak free insulate the suction lines to prevent heat gain and unwanted condensation Components Installing the suction line requires field installation of these components an access port and possibly a suction filter Position them as close to the compressor as possible Access port The access port is used to determine suction pressure and adjust the TEV It should be located near the external equalizer line connection This port is usually a Schraeder valve with a core Suction filter If required by the compressor unit a replaceable core suction filter is installed as close to the compressor unit as possible Adding manual ball type shutoff valves upstream and downstream of the filter simplifies replacement of the filter core Field Installing Evaporator Piping 40 See Figure 10 and refer to the instructions below to field install evaporator piping 1 7 Pitch the liquid line slightly 1 in 10 ft 1 cm 3 m so that the refrigerant drains toward the evaporator Provide one expansion valve per distributor Slightly pitch the outlet line from the suction header toward the suction riser that is 1 in 10 ft 1 cm 3 m in the direction of flow Use the tube diameter that matches the suction header connection For the vertical riser use the tube diameter recommended by the condensing unit manufacturer Assure the top of the riser is higher than the evaporator coil Arrange the suction li
144. setpoint e Current zone temperature e Fan mode selection off auto high low For optimal system performance blower coil units can operate as part of an Integrated Comfort System ICS building automation system controlled by Tracer Summit The controller is linked directly to the Summit control panel via a twisted pair communication wire requiring no additional interface device i e a command unit The Trane ICS system can monitor or override ZN520 control points This includes such points as temperature and output positions Rover Service Software 44 This windows based software package option allows field service personnel to easily monitor save download and configure Tracer controllers through a communication link from a portable computer When connected to the communication link Rover can view any Tracer controller that is on the same communication link Table 15 Tracer controller input output summary Tracer controller ZNO10 ZN510 ZN520 Binary outputs 2 speed fan 2 position hydronic valve 2 position mixing box damper 1 stage electric heat Modulating mixed air damper Modulating hydronic valve 2 stage electric heat Reheat hydronic Generic Binary inputs Condensate overflow detection Low temperature detection Generic input Analog inputs Zone temperature Setpoint Fan mode auto high low
145. sheaves and pull tight Adjust sheaves and tighten the sheave set screws to the correct torques recommended in Table 31 Figure 15 Clearance recommendation to Figure 16 Correct sheave alignment prevent fan frame and belt interface Edge Y Minimum Equal Distance Top and Bottom From Belt Center Line To Straight Edge Driven Table 31 Recommended torques for tightening sheaves and bearing thrust collar Torque in Ib Ft Ib N m Sheave setscrew 144 12 16 3 Bearing thrust collar 66 5 5 7 5 Fan wheel screw 144 12 16 3 Fan Assembly Set Screws Check and adjust fan wheel bearing and sheave set screws whenever a component is removed or an adjustment is made Refer to Table 31 for recommendations Fan Belt Tension Proper belt tension is necessary to endure maximum bearing and drive component life and is based on fan brake horsepower requirements Replace belt when frayed or worn Fan belt tension should only be tight enough so the belt does not slip and maintains adequate airflow Note Check fan belt tension at least twice during the first days of new belt operation since there is a rapid decrease in tension until belts are run in Be careful not to over tension fan belt Excessive tension will reduce fan and motor bearing life accelerate belt wear and possibly cause shaft failure Clean the sheaves and belt with a dry cloth Keep oil and grease away from the belt beca
146. st p 73 A specific list of diagnostics effects fresh air damper operation For more information see Table 41 p 77 and Table 42 p 77 The controller must be properly configured based on the actual installed end devices and application When the unit configuration does not match the actual end device the damper may not work correctly If the controller does not have power the unit fan does not operate For the Tracer 2 010 510 controller to operate normally it must have an input voltage of 24 VAC When the green LED is off continuously the controller does not have sufficient power or has failed The wiring between the controller outputs and the fresh air damper must be present and correct for normal damper operation Refer to the unit wiring diagrams on the unit BCXC SVX01B EN 79 e TRANE Diagnostics Table 48 Fresh air damper stays open Probable cause Explanation Normal operation Manual output test Unit configuration Unit wiring The controller opens and closes the fresh air damper based on the controller s occupancy mode and fan status Normally the fresh air damper is open during occupied mode when the fan is running and closed during unoccupied mode The controller includes a manual output test sequence that verifies analog and binary output operation and associated wiring However based on the current step in the test sequence the fresh air damper may be open Refer to the Manua
147. strip Tracer Controllers BCXC SVX01B EN The Tracer family of controllers ZN010 ZN510 ZN520 offer the combined advantages of simple and dependable operation with the latest Trane designed controller Standard control features include options normally available on more elaborate control systems All control options are available factory configured or can be field configured using Rover service software For more detailed information refer to Trane publication CNT IOP 1 nstallation Operation and Programming Guide for 213010 ZN510 or CNT SVX0AA EN Installation Operation and Programming Guide for ZN520 Tracer ZN010 Tracer 2 010 is a stand alone microprocessor controller Tracer ZN510 and ZN520 The Tracer ZN510 controller can be used as either a standalone or as part of a Trane Integrated Comfort System ICS Figure 12 ZN510 control board Figure 13 ZN520 control board Inthe stand alone configuration ZN510 or 520 receives operation commands from the zone sensor and or the auto changeover sensor on auto changeover units ZN520 also receives commands from the discharge air sensor The entering water temperature is read from the auto changeover sensor and determines if the unit is capable of cooling or heating The zone sensor module is capable of transmitting the following information to the controller e Timed override on cancel request 43 e TRANE Controls Interface e Zone
148. t Fan mode Communications Ui Communications Space Temperature Measurement Zone sensors use a 10kW thermistor to measure the space temperature Wall mounted zone sensors include a space temperature thermistor Unit mounted zone sensors have a return air sensor mounted in the unit s return airstream If both a hardwired and communicated space 60 BCXC SVX01B EN BCXC SVX01B EN temperature value exists the controller ignores the hardwired space temperature input and uses the communicated value Local Setpoint The zone sensor may be equipped with a thumbwheel for setpoint adjustment Fan Mode Switch The zone sensor may be equipped with a fan mode switch The fan mode switch offers selections of off low high or auto External Setpoint Adjustment Zone sensors with an external setpoint adjustment 1kW provide the Tracer ZN controller with a local setpoint 50 85 F or 10 to 29 4 C The external setpoint is exposed on the zone sensor s front cover When the hardwired setpoint adjustment is used to determine the setpoints all unit setpoints are calculated based on the hardwired setpoint value the configured setpoints and the active mode of the controller The hardwired setpoint is used with the controller s occupancy mode occupied occupied standby or unoccupied the heating or cooling mode the temperature deadband values and the heating and cooling setpoints high and low limits to de
149. t with a flexible material such as heavy canvas to help minimize noise and vibration If a fire hazard exists Trane recommends using Flexweave 1000 type FW30 or equivalent canvas Use three inches for the return duct and three inches for the discharge duct Keep the material loose to absorb fan vibration Run the ductwork straight from the opening for a minimum of 1 1 2 fan diameters Extend remaining ductwork as far as possible without changing size or direction Do not make abruptturns or transitions near the unit due to increased noise and excessive static losses Avoid sharp turns and use elbows with splitters or turning vanes to minimize static losses Poorly constructed turning vanes may cause airflow generated noise Align the fan outlet properly with the ductwork to decrease duct noise levels and increase fan performance Check total external static pressures against fan characteristics to be sure the required airflow is available throughout the ductwork To achieve maximum acoustical performance minimize the duct static pressure setpoint BCXC SVX01B EN 37 e TRANE Installation Piping Water Coil Connections Water coils have sweat connections Reference coil connection dimensions in Dimensions and Weights p 15 Proper installation and piping is necessary to ensure satisfactory coil operation and prevent operational damage Water inlet and outlet connections extend through the coil section side panel see Figure 9 Follow st
150. termine the controller s active setpoint When a building automation system or other controller communicates a setpoint to the controller the controller ignores the hardwired setpoint input and uses the communicated value The exception is the unoccupied mode when the controller always uses the stored default unoccupied setpoints After the controller completes all setpoint calculations based on the requested setpoint the occupancy mode the heating and cooling mode and other factors the calculated setpoint is validated against the following setpoint limits e Heating setpoint high limit e Heating setpoint low limit e Cooling setpoint high limit e Cooling setpoint low limit Note Only units with ZN510 or ZN520 can receive a communicated setpoint from Tracer or other building automation system However Rover service software can communicate with all Tracer ZN controllers These setpoint limits only apply to the occupied and occupied standby heating and cooling setpoints These setpoint limits do not apply to the unoccupied heating and cooling setpoints stored in the controller s configuration When the controller is in unoccupied mode it always uses the stored unoccupied heating and cooling setpoints The unit can also be configured to enable or disable the local hardwired setpoint This parameter provides additional flexibility to allow you to apply communicated hardwired or default setpoints without making physical changes
151. tion No action Condensate overflow detection Yes off Closed off Closed Entering water temperature No Enabled Enabled Enabled Enabled Fan mode failure No Enabled Enabled Enabled Enabled Invalid unit configuration failure Yes Disabled Disabled Disabled Disabled Low temperature detection Yes Off Open Off Closed Maintenance required Yes Enabled No action No action No action Setpoint No Enabled No action No action No action Zone temperature failure No Off Closed Off Closed Notes 1 Priority Level Diagnostics are listed in order from highest to lowest priority The controller senses and records each diagnostic independently of other diagnostics It is possible to have multiple diagnostics present simultaneously The diagnostics affect unit operation according to priority level N Latching A latching diagnostic requires a manual reset of the controller while a non latching diagnostic automatically resets when the input is present and valid Enabled End device is allowed to run if there is a call for it to run Disabled End device is not allowed to run even if there is a call for it to run No Action The diagnostic has no affect on the end device Table 42 Tracer ZN520 diagnostics Diagnostic Fan Other outputs 2 Condensate overflow Off Valves closed fresh air damper closed electric heat off baseboard heat off Low temperature detection Off Valves open fresh air damp
152. to ensure the power can not be inadvertently energized Failure to disconnect power before servicing could result in death or serious injury NOTICE Use copper conductors only Unit terminals are not designed to accept other conductor types Failure to use copper conductors could cause equipment damage BCXC SVX01B EN 83 e TRANE Wiring Diagrams Two Pipe BCXC with Tracer ZN520 e 460 volt 3 phase e 2 position valve e economizer damper e 2 stage electric heat e fan status switch e condensate overflow e wall mounted zone sensor NOTES 1 UNLESS OTHERWISE NOTED ALL SWITCHES ARE SHO ERE dur t Ee PERSONE AD COE TE 1 OPE AND AFTER NORMAL SHUTDOWN HAS OCCURED ter 1 CONTROL PANEL DESIGNATION DESCRIPTION NUMBER 2 DASHED LINES INDICATE BEOOMENDER FELD WR ING r 4 ME WM 2 SUPPLY FAN AND COIL SECTION 1 1 TRANSFORMER CIRCUIT BREAKER 16 d LINE Eh OSUI Be DA OR DASHED ri in 3 1K1 SUPPLY FAN CONTACTOR 20 213 55010 LINES 202122 ar 4 MIXING BOX SECTION PEN 14 di 5 EXTERNAL PIPING m CONTROL POWER TRANSFORMER 16 1134 A 11756 6 ELECTRIC
153. ture sampling function For example when the measured EWT is too cool to heat or too warm to cool For cooling the EWT needs to be five degrees below the measured space temperature For heating the EWT should be five degrees above the measured space temperature After the controller invokes the function the unit opens the main hydronic valve for no more than three minutes before considering the measured EWT The controller allows an initial stabilization period equal to 30 seconds plus 1 2 the valve stroke time to flush the coil Once the temperature stabilization period expires the controller compares the EWT against the effective space temperature either hardwired or communicated to determine whether the EWT is correct for the desired heating or cooling mode If the EWT is not usable for the desired mode the controller continues to compare the EWT against the effective space temperature for a maximum of three minutes The controller automatically disables the entering water temperature sampling and closes the main hydronic valve when the measured EWT exceeds the high EWT limit 110 F When the EWT is warmer than 110 the controller assumes the EWT is hot because it is unlikely the coil would drift to a high temperature unless the actual loop temperature was very high If the EWT is unusable too cool to heat or too warm to cool the controller closes the hydronic valve and waits 60 minutes before initializing another sampling If the c
154. uired For personal safety refer to the cleaning agent manufacturer s Materials Safety Data Sheet and follow all recommended safe handling practices Failure to follow all safety instructions could result in death or serious injury 69 e TRANE Maintenance Winterizing the Coil Make provisions to drain coils that are not in use especially when subjected to freezing temperatures To drain the coil first blow out the coil with compressed air Next fill and drain the tubes with full strength ethylene glycol several times Then drain the coil as completely as possible NOTICE Potential coil freeze condition Make provisions to drain the coil when not in use to prevent coil freeze up Failure to follow this procedure could result in equipment damage Periodic Maintenance Checklists 70 Monthly Checklist The following check list provides the recommended maintenance schedule to keep the unit running efficiently A WARNING Hazardous Voltage Disconnect all electric power including remote disconnects before servicing Follow proper lockout tagout procedures to ensure the power can not be inadvertently energized Failure to disconnect power before servicing could result in death or serious injury A WARNING Rotating parts Secure drive sheaves to ensure motor cannot freewheel Failure to follow this procedure could result in death personal injury or equipment damage 1 Inspect unit air filters Clean or replace if airfl
155. uration see Figure 7 Figure 7 Typical vertical unit installation Heating Coil Option Note The hydronic heating coil option is factory installed in either the reheat or preheat position Coils can be rotated for either right or left hand connections If you need to rotate the hydronic heating coil option to change the coil connection side follow the procedure below 1 Remove both coil access panels Remove the coil and rotate to change connection position Exchange coil patch plates Knock out drain pipe connections on new coil hand access panel gu 10 19 Plug old drain connections Mixing Box Option Materials provided e mounting legs BCXC SVX01B EN 35 e TRANE Installation Mechanical e interconnecting linkage LH or RH attachment Materials needed e grooved and extendible drive rods 1 2 inch O D grooved screws The mixing box option ships separately for field installation It has two low leak opposed blade dampers and all necessary interconnecting linkage components for left or right hand attachment onto 1 2 inch O D grooved extendible drive rods Also mounting legs are provided for floor mounting on a vertical unit Knockouts are provided to suspend the mixing box from the ceiling horizontally Mixing Box Installation Procedure 1 Support the mixing box independent of the unit in the horizontal position 2 Install the mixing box as a sleeve around the duct collar o
156. uration does not match the actual end device the valves may not work correctly The wiring between the controller outputs and the valve s must be present and correct for normal valve operation Refer to the unit wiring diagrams on the unit Table 46 Electric heat not operating Probable cause Explanation Normal operation Requested mode off Communicated disable Manual output test Diagnostic present Unit configuration No power to the controller Unit wiring The controller cycles electric heat on and off to meet the unit capacity requirements Itis possible to communicate the operating mode such as off heat cool to the controller When off is communicated to the controller the units shuts off the electric heat Numerous communicated requests may disable electric heat including an auxiliary heat enable input and the heat cool mode input Depending on the state of the communicated request the unit may disable electric heat The controller includes a manual output test sequence that verifies analog and binary output operation and associated output wiring However based on the current step in the test sequence the electric heat may not be on Refer to the Manual Output Test p 73 A specific list of diagnostics affects electric heat operation For more information see Table 41 p 77 and Table 42 D 77 The controller must be properly configured based on the actual installed end devices and app
157. use they may cause belt deterioration and slippage Trane does not recommend belt dressing 64 BCXC SVX01B EN e TRANE Maintenance NOTICE Belt tension Do not over tension belts Excessive belt tension will reduce fan and motor bearing life accelerate belt wear and could result in shaft failure Table 32 BCHC BCVC fan filter and mixing box general data Unit size 12 18 24 36 54 72 90 Nominal cfm 400 600 800 1200 1800 2400 3000 Air flow Minimum cfm 250 375 500 750 1125 1500 1875 Maximum cfm 500 675 1000 1600 2400 3000 4000 Fan data Fan wheel in dia x width 95 4 5 9 5 4 5 9 5 9 5 95 9 5 12 6 9 5 12 6 9 5 12 6x9 5 2300 2300 1800 1800 1500 1500 1500 Motor hp 0 33 1 0 0 33 1 0 0 33 1 0 0 33 1 5 0 33 2 0 0 33 3 0 0 33 3 0 Unit flat filter Qty size in 1 12x24 1 12x24 1 16x25 2 16x20 2 20x20 1 20x 20 3 16x25 1 20x25 Area sq ft 2 000 2 000 2 778 4 444 5 556 6 250 8 333 Velocity ft min 200 300 288 270 324 384 360 Angle filter Qty size in 2 12x24 2 12x24 2 12x24 2 20x20 4 16x20 4 16x20 4 20x20 Area sq ft 4 000 4 000 4 000 5 556 8 889 8 889 11 111 Velocity ft min 100 150 200 216 203 270 270 Bottom top access filter box Qty size in 1 12x20 1 12x24 1 16 x25 1 16x20 1 16x20 1 20 25 2 16x25 1 16x16 1 20x20 1 20x20 1 14 x 25 Area sq ft 1 700 2 000 2 800 4 000 5 000 6 300 8 000 Velocity ft min 240 300 288 300 360 384 375 Mixing box Damper openin
158. wer before servicing could result in death or serious injury Table 1 Service requirements in cm Unit size Dimension A 12 20 50 8 18 25 63 5 24 25 63 5 36 37 94 0 54 37 94 0 72 45 114 3 90 45 114 3 12 BCXC SVX01B EN e TRANE Pre Installation Figure 2 view of blower coil unit showing recommended service and code clearances Drain Pan Piping Package P Control Box DimA Dimension A Rigging and Handling Before preparing the unit for lifting estimate the approximate center of gravity for lifting safety Because of placement of internal components the unit weight may be unevenly distributed with more weight in the coil area Approximate unit weights are given in Dimensions and Weights p 15 Also you may reference the unit weight on the unit nameplate Before hoisting the unit into position use a proper rigging method such as straps slings or spreader bars for protection and safety Always test lift the unitto determine the exact unit balance and stability before hoisting it to the installation location WARNING Improper Unit Lift Test lift unit approximately 24 inches to verify proper center of gravity lift point To avoid dropping of unit reposition lifting point if unit is not level Failure to properly lift unit could result in death or serious injury or possible equipment or property only dama
159. which may cause odors and health related indoor air quality problems If there is visible evidence of microbial growth mold on the interior insulation remove and replace the insulation prior to operating the system 11 e TRANE Pre Installation Installation Preparation Before installing the unit perform the following procedures to ensure proper unit operation 1 Verify the floor or foundation is level Shim or repair as necessary To ensure proper unit operation install the unit level zero tolerance in both horizontal axes Failure to level the unit properly can result in condensate management problems such as standing water inside the unit Standing water and wet surfaces inside units can result in microbial growth mold in the drain pan that may cause unpleasant odors and serious health related indoor air quality problem 2 Allow adequate service and code clearances as recommended in the Service Access section below Position the unit and skid assembly in its final location Test lift the unit to determine exact unit balance and stability before hoisting it to the installation location Service Access See Table 1 below and Figure 2 p 13 for recommended service and code clearances WARNING Hazardous Voltage Disconnect all electric power including remote disconnects before servicing Follow proper lockout tagout procedures to ensure the power can not be inadvertently energized Failure to disconnect po
160. x largest motor FLA second motor FLA heater amps if applicable HACR Heating Air Conditioning and Refrigeration type circuit breakers are required in the branch circuit wiring for all units with electric heat 29 e TRANE Installation Electrical 30 See Table 13 for electric heat kW and Table 14 p 31 for motor FLAs Select a standard fuse size or HACR type circuit breaker equal to the MCA Use the next larger standard size if the MCA does not equal a standard size Standard fuse sizes are 15 20 25 30 35 40 45 50 60 amps Useful Formulas kW cfm x AT 3145 AT kW x 1000 voltage Single phase amps kW x 1000 voltage Three phase amps kW x 1000 voltage x 1 73 Electric heat MBh Heater kW 3 413 Table 13 Available electric heat min max kW Unit size Voltage 12 18 24 36 54 72 90 115 60 1 1 3 1 3 1 3 1 3 1 3 1 3 1 3 208 60 1 1 4 1 6 1 8 1 8 1 8 1 8 1 8 230 60 1 1 4 1 6 1 8 1 8 1 8 1 8 1 8 277 60 1 1 4 1 6 1 8 1 11 1 11 1 11 1 11 208 60 3 1 4 1 6 1 8 1 11 1 12 1 12 1 12 230 60 3 1 4 1 6 1 8 1 11 1 12 1 12 1 12 460 60 3 1 5 4 1 5 5 1 8 1 11 1 16 1 21 1 30 575 60 3 2 4 2 4 1 8 1 11 1 16 1 21 1 30 220 50 1 1 4 1 6 1 8 1 8 1 8 1 8 1 8 240 50 1 1 4 1 6 1 8 1 8 1 8 1 8 1 8 380 50 3 1 4 1 5 1 8 1 11 1 16 1 20 1 28 415 50 3 1 5 4 1 5 5 1 8 1 11 1 16 1 21 1 30 190 50 3 N A N A N A N A N A N A N A Notes 1 Heaters are available in the following Kw increments 1

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