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AdaptAire Digital Control System User Manual

1. CAUTION OPEN MAIN TO CIRCUIT BREAKER DISCONNECT SWITCH BEFORE SERVICING DISCONNECT EQUIPMENT OP MORAL O n 208 230 460 575 VOLT ka L om 3 PHASE OL 60 HERTZ 1 2 STARTER FAN 3 WIRE CONTACTS MOTOR 10 MAIN SUPPLY AR AB CIRCUIT BREAKER DISCONNECT J 6 9 SWITCH UNIT SHALL BE GROUNDED ACCORDING 5 OPTIONAL a OPTIONAL T P TO THE LATEST PROVISIONS OF NEC T CONTROL TRANSFORMER CUSTOMER EXHAUST JUMPER 1B 1 JUMPER 1A 1B DAMPER MOTOR FAN INTERLOCK _ F USED IF NOT USEH DAMPER O l m JUMPER 1 3 y TRANSFORMER FAO Mosen UNIT ENABLE RELAY JE 14 59 3 4 5 1 114 LOW AND HIGH VELOCITY STARTER BURNER ENABLE RELAY AIRFLOW SWITCHES CONTACT FAN STARTER 19 m 18 re 13 N 1 STATUS MODULATING VALVE TRANSFORMER ELECTRONIC RELAY 24 DOOOE 111 L208 m TO ADAPTARE CONTROL 208 0 10 12 INPUT MODULATING GAS VALVE BURNER STATUS g BURNER RELAY HIGH LOW AND HIGH GAS r AUXILIARY GAS VALVE TEMPERATURE PRESSURE SWITCHES LOCATION 7 LIMIT SWITCH OPT
2. DISCONNECT SWITCH BEFORE SERVICING STARTER EQUIPMENT S CONTACTS q 208 230 460 575 VOLT j l ME UN OL ELECTRONIC RELAY 3 PHASE 14 24 E 60 HERTZ lt 7 MODULATING 6 29 32 5 WIRE MOTOR CIRCUIT BAR Do Not Ground TRANSFORMER Transformer Use Only 34 208 To AdaptAire Control 1 MODULATING 1 0 10 Shielded Signal Conductors VALVE ate 58 Input 4 4 TRANSFORMER FUSING SUPPLY AIR RETURN AIR lt gt FIRESTAT FIRESTAT DOOR OPTIONAL OPTIONAL SWITCH 4 24 ALT toa cele 04 lt 2 01 CONTROL TRANSFORMER JUMPER 103 104 JUMPER 101 103 6 gt 02 IF NOT USED IF NOT USED l UNIT SHALL BE GROUNDED ACCORDING TO THE LATEST PROVISIONS OF NEC LOW AND HIGH GAS STARTER LOW AND HIGH VELOCITY HIGH PRESSURE SWITCHES VALVE RELAY INTERLOCK AIRFLOW SWITCHES LIMIT OPTIONAL CONTACT prob GAS VALVE lt Ho 116 11 1191 2 21 2 fo 121 oc par GAS VALVE JUMPER 112 120 IF NOT USED 17 SAFETY CIRCUIT STATUS RELAY FAN STATUS RELAY 5 DAMPER MOTOR UNIT ENABLE RELAY WES E be hos fio7 fo Pe SW 18 FAN BURNER ENABLE RELAY OLOLOL STARTER 12 111 10 o id FIELD PURGE TIMER LOCATION DOG OO BURNER STATUS GAS VALVE FACTORY RELAY INSTALLED JUMPER T FLAME SENSOR 2 p C KEYPAD DISPLAY MODULE COO
3. Are the outside air hood filters or bird screen or any associated outside air ductwork obstructed a Yes Clear obstruction or change filters b No Continue Are the outside air and return air dampers and actuators working properly a Yes Continue b No Make necessary adjustments and force the unit to recalibrate See Calibrate in the Resets Section of this manual Are the AdaptAire flow measuring station pitot tubes and pressure tubing clear a Yes Continue b No Clean and force the unit to recalibrate See Calibrate in the Resets Section of this manual Do the dampers track with a change in the OA setpoint The dampers utilized on the heater are not linear with respect to airflow and openness and as such the proportion of outside air damper movement will not be exactly equal to the OA setpoint However at 20 OA the dampers should be approximately 1 2 open a Yes Continue b No Check the damper motor and linkage connections When 24VAC is powering the damper actuator and the control signal is OVDC the outside air damper should be close to a rattle tight position and the return air damper should be open If the 24VAC power is removed the actuator will draw the outside air damper tightly closed and the return air damper tightly open When 24VAC is powering the damper actuator and the control signal is 10VDC the outside air damper should be fully open and the return air damper should be closed
4. sse 42 Recirculating Cache Table for Modbus and N24 dete td deti t dud 43 Appendix IT oai ortae 44 Thermistor Output QUEE a tube set aee crt perat cd indu et dii 44 Appendix CL EE 45 Airflow Station i dt petiolo ep edit miti ede A 45 Overview Applied Air s Digital Control System AdaptAire is designed to give the user the ultimate in heater performance and operational flexibility Combined with the patent applied for airflow station used with recirculating heaters AdaptAire provides flexibility adaptability and reliability in a user friendly package Non recirculating heaters equipped with the AdaptAire system do not have return air capabilities and all functions related to recirculating heaters are not relevant Where a function is similar but different between recirculating and non recirculating heaters the function is explained separately AdaptAire accepts single or multiple heaters on the system network Each heater is provided with a local user interface The operating parameters for individual heaters may be input through the local interface A PC may also be connected to the network This allows the user to configure each heater separately or all heaters can be configured simultaneously A controls contractor can provide assistance in networking Operational modes include time scheduling filter monitoring and multiple damper control and tempera
5. Home Previous Min User SP Home Previous CLOCKSET Date dd mm yy Time hh mm ss Prev DST Enable gt N gt Y Sou Hem gt N gt Y no yes no yes 03Beg gt 06 03End gt Oct 26 04Beg gt Apr 04 04End gt Oct 31 05 gt 03 05 gt Oct 30 06Beg gt Apr 02 06End gt Oct 29 07Beg gt 01 07End gt Oct 28 08Beg Apr 06 8 gt Oct 26 09Beg gt Apr 05 09End gt Oct 25 Prev 39 Appendix I Network Port Setup Network Port Owner BACnet use B for BACnet M for Modbus or N for N2 Network Port Type EIA 485 use 2 or 4 Network communications set for 8 data bits No parity 1 stop bit BACnet Device Parameters Use default device object name Y Device Name see status screen Use default device object ID Y Device Name see status screen APDU Timeout 3000 milliseconds Number of APDU retries 0 Vendor Name Automated Logic Vendor Identifier 24 BACnet MS TP Parameters Station ID set by module s rotary address switches see status screen Master node X Max masters 127 1 127 BACnet default 127 Max info frames 50 BACnet default 1 Should not be 0 Modbus Device Parameters Modbus address for this device is 1 Slave use 0 for master The transmission mode is RTU use A for ASCII Reverse order of high and low words for FLOAT data type NO Master response timeout 1 x
6. 4 27 A 100 OUTPUT 219 ALARM STATUS RELAY 10K OHM DO3 b17 pg a 1 FLAME FAILURE 20K OHM CONTACT E M USER CONFIGURED TRANSDUCER INPUT DR 5 TO LINE BLOCK OR OPTIONAL DISCONNECT SWITCH 7 PS 20 201 000575 10 LOW VOLTAGE TRANSFORMER Networking AdaptAire operates on BACnet network architecture at 38 4K or 9600 baud BACnet Modbus and N2 network systems do not require special communication interfacing The AdaptAire system can be connected to most existing building automation systems using special controllers and network communication devices See Appendix I for Device Parameters and Cache Setup information AdaptAire Default Settings The following is a list of AdaptAire DDC controller defaults These are the default operating parameters set at the factory prior to shipment ITEM DEFAULT RANGE RELATED I O Unit Network Address 000 binary dips 000 255 binary dips Unit Operating Mode OFF OFF MANUAL AUTO DO6 Time Clock Schedule None 16 Normal 16 Holiday 8 DOG Override schedules Heating Cooling Heating HEATING COOLING DOS Operating Mode Damper Operating Manual MANUAL BUILDING AO2 Mode PRESS MIXED AIR TEMP Fuel Selection Natural Gas NATURAL PROPANE AO3 Heating Night Setback 55 F 40 80 F DOS DO6 Cooling Night Setback 100 F 75 F 120
7. E 1201 2 LOW VOLTAGE TRANSFORMER C000552 REV 1 JMJ CHANGED WIRE NUMBERS 212 4214 TO 202 NON RECIRCULATING DFOA and DFIA MODEL DIAGRAM CAUTION OPEN MAIN DISCONNECT SWITCH ican ae BEFORE SERVICING STARTER OPTIONAL EQUIPMENT GONTACTS m 208 230 480 575 VOLT Hl Le OL ELECTRONIC RELAY 3 PHASE 9 24 VAC 3 T3 MODULATING ls 3 MES MOTOR CIRCUIT T Do Not Ground 208 x TRANSFORMER Transformer Use Only 54 m AdaptAire Control 4 1 MODULATING 0 10 vd Shielded Signal Conductors VALVE 36 Input 4 TRANSFORMER FUSING SUPPLY AIR RETURN AIR 4 FIRESTAT FIRESTAT DOOR OPTIONAL 3 OPTIONAL SWITCH 4 24 VAC 4 1 104 19 1031 5 79 101 7 10 CONTR
8. i 21 vas Asa aka haa tahoe aad 21 PC EN 21 JUN COUNT i otii ptas r a 21 HEATING COUNT iuto ee heit me potuto eee eoe reden 21 COOLING COUNT dte a E ean ask 21 Diagnostics Critical Fault Codes see 21 FAULT CODE Unitoff ONGA Saeco e orm lated a ade a 22 SOLUTION If fan is running eere ettet iicet i Re hie 22 SOLUTION If fan is not running eite iit WR E RR EE e 22 FAULT CODE fr soe citron ead dq ERES EDAD 22 SOLUTION If fan motor i r nning 22 SOLUTION If fan motor is not nennen ener enne nnne bosib 23 FAULT CODE Low Discharge Temperature esses 23 SOLUTION If burner was operating prior to shutdown check prior alarm 0 23 SOLUTION If burner was not operating prior to shutdown check prior alarm log 25 FAULT CODES Circuit Open hee Rie eo ei puerta 26 SOLUTION If fan is not running check prior alarm 27 SOLUTION If fan is running check prior alarm 27 FAULT CODES Burner Stalussc ou ases ete d ei toda 27 SOLUTION Inspect burner control circuit and burner 27 PAULL CODE TIONG ctio 28 SO
9. AdaptAire Digital Control System User Manual Rev 7 22 04 Table of Contents OV CT VIGW aoc pui dmn dub audi ot 5 Controll r SpeciiCcatiolis eee ramas 6 Typical Wiring Schematic nte ioter alee 7 RECIRCULATING CDF MODEL tein 7 NON RECIRCULATING CDF MODEL RECIRCULATING DFOA MODEL DIAGRAM sse 9 NON RECIRCULATING DFOA and DFIA MODEL DIAGRAM see 10 anlar 11 AdaptAire Default 5 5 0122022 4 4 2 11 Unit Operating Modes eerie toe dei te tenia sit eene 12 ri tad ov V 12 MANOA SIC CAR EN PIPES RENTRER CU a 12 NST M ONDES erede Copt 42 Scheduling Time Clock SEE RED id aset iut 12 Heating Night Setb ele t e eee tie a a pei i t ts 12 Cooling Night setback 54 5 bei e ee ise ee s t s 13 Auxillary Unit 5 d det edi e tbe be tfe e e ee dei etes 13 Heating Cooling Operating 2 2 22 13 HPEATENGOM saa sl a aval osa esae A E Lb tas ab sees 13 Ge
10. Hg ai ie 34 SOLUTION It less outside air 18 aereo or pe DOR eie D E Valve lan a 35 GIOSSaEy R Gui os de 35 Menu Selection eios thu et p ID tad Noe ka Avi la a ik 36 UNIT 36 POUNDS na ean ds e ace e Rol ene RR 36 E hac cides a 37 ALARM ates SOA oir ede PaO ef 37 38 SCHE ULES etre ne mre Ot NOT ta ne a ae 38 USER CONFIGURABLE TO b aeos arnar 38 39 Appendix D on LEE 40 Network Port Setup ats Coy 40 BAChet Device Parameter S essi tdeo 40 BACnet MS TP aee e RU DONE ARN s DAR QUU 40 Modbus Device Par meters atit Aaa derent n A z f kazi 40 Device PUT ANI CLOTS cones tactu t Mu t D 40 Cache Setup for Modbus dn a Dues deis aee ds toda rol aS 40 Non Recirculating Cache Table for Modbus and N2
11. air OAt room air RoomT or discharge air temperature DAt displayed on the BACview remote reading 150 F or more a Yes That sensor circuit or the sensor itself is shorted Unplug the input jack from the AdaptAire controller Did the display change to 40 F or less 23 1 No There is a short in the controller input Replace the controller 2 Yes Disconnect the sensor wiring at the sensor Connect an ohmmeter to the sensor If it is shorted replace the sensor At 70 F the resistance should be 10KQ See thermistor output curve for other temperatures If it is not shorted there is a short in the wiring between the sensor and the input plug Determine cause and rectify Refer to Appendix II for a typical 10KQ thermistor output curve b No Continue 2 Is the outside air OAt room air RoomT or discharge air temperature DAt displayed on the BACview remote reading 40 F or less a Yes That sensor circuit or the sensor itself is open Jumper the input for the sensor Did the display change to 150 F or more 1 No There is an open in the controller input Replace the controller 2 Yes Disconnect the sensor wiring at the sensor Connect an ohmmeter to the sensor If it is open replace the sensor At 70 F the resistance should be 10 See thermistor output curve for other temperatures If it is not open there is a break in the wiring between the sensor and the input plug Determine cause and rectify b No Cont
12. any other dry contact to override the time clock schedule Heating Cooling Operating Modes There are two different modes which control the heating and cooling operation Heating and Cooling These operating modes are selected through the UNJT MODES menu tree of the local user interface or PC HEATING MODE Heating Mode allows the burner to operate as needed When heating is required digital output DOS will be activated To place the unit in Heating Mode scroll through the Unit Modes menu tree locate the HTG CLG OFF branch and select Heating This will place the unit in the Heating mode General Burner Control In the Heating Mode the burner will modulate to maintain a constant room temperature To change the desired heating room temperature scroll through the SETPOINTS menu tree locate the Heating Setpoint and enter a new temperature The allowable temperature range is 55 F 90 F The burner will modulate using a PID loop to maintain this temperature Additionally the control system modulates the burner to maintain the supply air temperature within a user defined operating window This window defines the maximum and minimum discharge temperatures To change the desired minimum supply or discharge air temperature scroll through the SETPOINTS menu tree locate the MIN DAT Setpoint and enter a new temperature This temperature must not be greater than the MAX DAT Setpoint The allowable temperature range is 40 F 90 F This sets the low
13. dk DIAGRAM SENSOR s AO02Q 29 gt Bre 7 DENOTES BY OTHERS FAN STATUS um 4 224 5 UNIT ENABLE RELAY RESISTORS AUXILARY UNIT SAFETY STATUS ozs S INS bo 10K OHM ENABLE SWITCH iF De DU pee are pa 1 225 a MA BURNER ENABLE RELAY CLOGGED FILTER BURNER STATUS 24 ING 55 1 20K SWITCH 1 F s 16 24 T p23 e y COOLING ENABLE RELAY p wae 4 1008 15 ALARM STATUS RELAY OHM 15 00 3 1 17 4 8 215 3 Fk INS 20K OHM 202 a 18 1218 213 BA E FM BM0 004 AIRFLOW STATION PRESSURE_TRANSDUCER BUILDING PRESSURE jos eres TRANSDUCER DISCONNECT SWITCH E 20 LOW VOLTAGE TRANSFORMER 000546 REV 1 JMJ 11 06 03 CHANGED WIRE NUMBERS 212 amp 214 202 NON RECIRCULATING CDF MODEL DIAGRAM CAUTION OPEN MAIN
14. pressure by connecting the high sensing port of a manometer to one of the airflow sensing tubes and the low sensing port to the other Is the differential pressure approximately the midpoint between the high and low airflow switch setpoints 1 No Close the profile opening until the differential pressure is approximately the midpoint between the high and low airflow switch setpoints Reconnect the sensing tubes restart the burner and verify the airflow switch remains closed when the burner is at the maximum rated input Continue 2 Yes Continue Are all of the filters dirty a Yes Install clean filters and continue b No Continue Does the external static pressure match that listed on the rating plate a No Verify all associated ductwork is installed as designed and there are no obstructions Continue b Yes Continue Does the fan RPM match that listed on the Spec Sheet a No Correct to increased fan speed and continue b Yes Continue Are the airflow switches sensing tubes obstructed a Yes Clear and continue b No Continue Contact factory FAULT CODE Clogged Filter Switch PROBLEM The filter air pressure switch has closed and connected a 20 000Q or 6 667Q resistance at controller input IN7 See the Typical Wiring Schematic Multiplexed Input and Clogged Filter sections of this manual for more information SOLUTION If clogged filter switch is closing 1 Are the filters dirty a Yes Install clean f
15. the functionality of this controller These two switches effectively share their respective input To allow the controller to identify which switch has closed the switches are connected to the input through different size resistors These resistors have values of 10K ohms and 20K ohms When a single switch is closed either the 10K or 20K resistor is connected to the input When both switches are closed the effective resistance at the input is 6 667 ohms The controller is programmed to associate each different resistance with a specific function For example a 20K ohm resistor is connected to input 7 when the optional clogged filter switch is closed This tells the controller that the filters are clogged and it notifies the user through the local user interface See the Typical Wiring Schematic section of this manual for more information 20 Resets This section should assist the user in resetting alarms and cycle counters which have been displayed on the local user interface ALARM RS Alarm RS is the alarm reset To reset an alarm scroll through the menu tree locate the Resets branch and select Alarm RS Press the Enter key The word OFF should flash Now press the INC key and the word ON should flash on the display Press the Enter key again and ON should stop flashing Repeat this process so the word OFF is displayed and not flashing The alarm has now been cleared and the Alarm RS function has been rearmed CALIBRATE The Calibrate
16. to maintain the specified supply air temperature If the supply air temperature is 75 F the output from the controller will be determined by the PID control sequence and the override will have no effect on the output If the supply air temperature is more than 75 F the output from the controller will be determined by the PZD control sequence or the override whichever is less If the supply air temperature is less than 75 F the output from the controller will be determined by the PZD control sequence or the override whichever is more Max User SP 80 F 100 override scaler User Ctrl SP 75 F PID 0 100 75 F 100 0 100 Output override scaler Input lt 75 F 70 F 0 Min User SP 18 REVERSE ACTING The controller output AO 1 is modulated by a PID loop from 0 to 100 based on the User Control setpoint and the input signal to IN 9 As the input signal increases the output voltage decreases Additionally a secondary control acts to override the PID loop to scale the output as follows If the input variable equals the User Control setpoint the output will be determined by the PID loop In this situation the override has no effect on the output value If the input variable is above the User Control setpoint the output could decrease from 100 to 0 as the input variable increases from the User Control setpoint to the Max User setpoint In this situation the output value is the lesser of the P
17. various temperature pressure and damper readings The system s diagnostic capabilities provide the user with up to the minute status reporting Controller Specifications POWER REQUIREMENTS 24VAC 10 20VA NETWORK COMMUNICATION BACnet Modbus or N2 bus at 38 4K or 9600 baud LonWorks using gateway LOCAL USER INTERFACE BACview 2 line 16 character display connected to controller via CAT5 cable and RJ45 connectors BACview 4 line 40 character display required for Modbus or N2 bus Either BACview can be located up to 1000 away from the controller MEMORY 512K bytes of flash memory and 512K bytes of non volatile battery backed RAM REALTIME CLOCK Battery backed to keep time in event of power failure TEMPERATURE OPERATING RANGE 20 F to 150 F 10 to 95 RH non condensing INPUTS OUTPUTS 10 Universal Inputs e 0 5 VDC or 0 20 mA 6 Digital Outputs e Relay contacts rated at 3A Resistive 24VAC Hand Off Auto switches e LED indication 4 Analog Outputs e 0 10 VDC or 0 20 mA e LED indication OUTPUT ASSIGNMENTS ANALOG AOI Unassigned AO2 RA or Mixing Damper Control 0 10VDC AO3 Burner firing rate to Maxitrol A200 0 10 VDC 4 User Configured OUTPUT ASSIGNMENTS DIGITAL DO1 Unassigned DO2 Pilot to Main Flame Sensor Changeover Switch DO3 Alarm DO4 Cooling Enable DOS Burner Enable DO6 Unit Enable INPUT ASSIGNMENTS UNIVERSAL IN1 Outside Air sensor IN2 Room Air sensor no lim
18. 0 as the input variable increases from the User Control setpoint to the Max User setpoint In this situation the output value is the greater of the PID output or the override output If the input variable is below the User Control setpoint the output could decrease from 100 to 0 as the input variable decreases from the User Control setpoint to the Min 17 User setpoint In this situation the output value is the lesser of the PID output or the override output See the following example Assume the user wishes to control a chilled water valve using a temperature transducer The control variable will be supply air temperature As the supply air temperature increases the chilled water valve should open to lower the temperature The temperature transducer has a range of 50 F 85 F The user would like the supply air temperature to be 75 F but does not want it to drop below 70 F or go above 80 F The parameters entered on the keypad display will be PID Select Direct as input increases output increases High Input Val 85 F Low Input Val 50 F User Ctrl SP 75 F Max User SP 80 F Min User SP 70 F The temperature transducer senses the supply air temperature and sends a corresponding signal to the AdaptAire controller The controller compares this signal to the desired user control setpoint 75 F and uses the PID loop to modulate the output from 0 100 0 10Vdc The output is connected to the chilled water valve which opens or closes
19. 1 c No Contact factory Do the dampers track with a change in the OA setpoint The dampers utilized on the heater are not linear with respect to airflow and openness and as such the proportion of outside air damper movement will not be exactly equal to the OA setpoint However at 20 OA the dampers should be approximately 1 2 open a Yes Continue b No Check the damper motor and linkage connections When 24VAC is powering the damper actuator and the control signal is OVDC the outside air damper should be close to a rattle tight position and the return air damper should be open If the 24VAC power is removed the actuator will draw the outside air damper tightly closed and the return air damper tightly open When 24VAC is powering the damper actuator and the control signal is 10VDC the outside air damper should be fully open and the return air damper should be closed Is there approximately 24VAC at the COM and EXC terminals on the airflow station pressure transducer a Yes Continue b No Is there 120VAC on the primary side of the low voltage transformer and 24VAC volt at the transformer secondary 1 Yes There is an open in the wiring between the transformer and the transducer Locate the wiring problem and rectify 32 2 No If there is 120VAC on the primary and on the secondary replace the transformer If there is OVAC on the primary there is an open in the wiring supplying power to the tran
20. 100ms default 100ms N2 Device Parameters The slave address for this N2 device is 255 use 1 255 Cache Setup for Modbus and N2 The cache allows you to configure up to 200 points for Modbus or N2 communications The protocol assigned to the I O 6104 s Network Port determines which cache parameters Modbus or N2 will be used to process the cache point Type The BACnet object type of thie internal BACnet microblock that will send data to or receive data from an external device Valid object types include AI BACnet Analog Input microblock AO BACnet Analog Output microblock AV BACnet Analog Value Parameter or Status microblock BI BACnet Binary Input microblock BO BACnet Binary Output microblock BV BACnet Binary Value Parameter or Status microblock 40 ID The BACnet Object ID assigned to the BACnet microblock This must be a decimal value in the range 1 to 999 999 Description Optional text describing the cache point Action This determines how the cache line is processed Valid actions depend on whether the module is configured as a Master or Slave device Use to disable the cache line Mod Fmt This describes the Modbus format for the object Valid Modbus formats are UINT 16 bit unsigned integer SINT 16 bit signed integer FLOAT 32 floating point number in two adjacent registers BITn where n 0 15 BITO being the least significant DO discrete output DI discrete input ES exception stat
21. CIRCUIT 4 De Not Ground 208 4 4 TRANSFORMER Transformer Use Only 34 To AdaptAire Control 1 MODULATING 0 10 vdc Shielded Signal Conductors VALVE M 3 Input TRANSFORMER FUSING SUPPLY AIR RETURN AIR 4 FIRESTAT FIRESTAT DOOR OPTIONAL OPTIONAL SWITCH rta VAC Tb 104 103 101 0 CONTROL 5 725 TRANSFORMER JUMPER 103 104 JUMPER 101 103 oO 92 NOT USED IF NOT USED UNIT SHALL BE GROUNDED ACCORDING TO THE LATEST PROVISIONS OF NEC LOW AND HIGH GAS STARTER LOW AND HIGH VELOCITY HIGH PRESSURE SWITCHES VALVE RELAY INTERLOCK AIRFLOW SWITCHES LIMIT OPTIONAL CONTACT AUX GAS VALVE e eegee naeris a 20 xH khia 1 MAIN GAS VALVE JUMPER 119 120 NOT USED SAFETY CIRCUIT STATUS RELAY FAN STATUS RELAY Cx UNIT ENABLE RELAY DANRER log fe a6 2 07 04 3 Adoptaire r Control FAN BURNER ENABLE RELAY OLOLOL STARTER 12 111 pe 10 10 Hohe ar FIELD PURGE TMER LOCATION E IIS BURNER STATUS 11 GAS VALVE FACTORY RELAY INSTALLED JUMPER 115 FLAME SENSOR x KEYPAD DISPLAY MODULE COOLING MODE ENABLE REMOTE ALARM INDICATION f REMOTE MOUNTED COOLING ENABLE CONTACT ALARM STATIS CONTACT CONTROL MODULE 7 A Tx SHIELDED CABLE 5 IM Keypad Display OUTSIDE AIR TEMPERATURE qi Port ped SENSOR MAL 04 Q 7 SPACE TEMPERATURE me SEE_UNIT SENSOR tj NL A08 Q 5 WIRING DISCHARGE AIR TEMPERATURE an
22. DO 7 BO 22 N BV 15003 Fan Fault Status Expose to DI 10009 Bl 52 N BV 15004 Bnr Cntr Clear Expose to DO 2 BO 17 N BV 15006 Cool Cntr Clear Expose to DO 3 BO 18 N BV 15008 Aux On Expose to DI 10012 Bl 55 N BV 15009 Filter Dirty Expose to DI 10013 56 N BV 15011 FSG Alarm Expose to DI 10011 Bl 54 N BV 15013 H C Mode Select Expose to DO 4 BO 19 N BV 15016 Network Enable Expose to DO 8 BO 57 N BV 15017 User PID Select Expose to DI 10014 BI 68 42 Recirculating Cache Table for Modbus and N2 POINT ID INSTANCE MOD MOD N2 N2 Recirc Only TYPE NUMBER DESCRIPTION ACTION FMT OBJ FMT OBJ R Al Al 4 13001 Space Temp Expose to FLOAT 30001 R Al 13002 Temp Expose to FLOAT 30003 Al 5 R Al 13003 DA Temp Expose to FLOAT 30005 Al 6 R Al 13004 Flow Stn Prs Expose to FLOAT 30007 AI 7 R Al 13005 Bldg Prs x 100 Expose to FLOAT 30009 Al 8 14 15 Htg Nite SP 33 Unit Enable A O M 34 Freeze Stat SP 32 Flow Stn Avg Prs 40 Return Air 96 41 Outside Air 96 42 Act EQ Temp Rise 39 Max EQ Temp Rise 38 Max Disch Temp 44 Mixed Air Temp Fan Cycles Fan Hours Mix Air Temp SP Bldg Press SP Manual Damper SP 40009 ADI Mode Select 1 40015 ADI 30030 ADI 40003 ADI Gas Open Min DAT SP Cooling Cycles Cooling Hours 30033 ADI 40005 ADI 40008 ADI Time secs Calb Time mi
23. F DO4 DO6 Room Temperature 65 F 55 F 90 F AO2 DO6 Setpoint Freezestat 45 F 35 F 50 F DO6 Outside Air 65 F 40 F 80 F DOS Economizer Setpoint Minimum Discharge 55 F 40 F 130 F AO3 Temperature Setpoint Maximum Discharge 100 F 55 F 130 F AO3 Temperature Setpoint Mixed Air 50 F 30 F 90 F AO2 Temperature Setpoint Building Pressure 0 W C 0 05 0 05 W IN10 AO2 Setpoint Manual Damper 20 Outside 0 100 AO2 Position Setpoint Air Minimum Ventilation 20 Outside 0 100 AO2 Setpoint Air User PID Select Direct Acting DIRECT REVERSE IN 9 AO1 High Input Value 0 00 9999 99 9999 99 IN 9 Low Input Value 0 00 9999 99 9999 99 IN 9 User Control Setpoint 0 00 9999 99 9999 99 IN 9 AO1 Maximum User 0 00 9999 99 9999 99 IN 9 AO1 Setpoint Minimum User 0 00 9999 99 9999 99 IN 9 AO1 Setpoint 11 Unit Operating Modes There are three different modes which control the supply fan and unit operation Off Manual and Auto These operating modes are selected through the UNJT MODES menu tree of the local user interface or PC OFF MODE Off Mode is the default heater operational mode To place the unit in Off Mode scroll through the Unit Modes menu tree locate the AUTO OFF MAN branch and select OFF This will place the unit in the OFF mode The OFF mode prevents the fan and burner from starting This mode will override the Time Clock a
24. ID output or the override output If the input variable is below the User Control setpoint the output could increase from 0 to 100 as the input variable decreases from the User Control setpoint to the Min User setpoint In this situation the output value is the greater of the PID output or the override output See the following example Assume the user wishes to control the fan speed using a variable frequency drive The VFD input is 0 10Vdc The control variable will be building pressure As the building pressure increases the fan speed should decrease The building pressure transducer has a range of 0 1 to 0 1 The user would like the building pressure to be 0 03 but does not want it to drop below 0 0 or go above 0 05 The parameters entered on the keypad display will be PID Select Reverse as input increases output decreases High Input Val 0 10 Low Input Val 0 10 User Ctrl SP 0 03 Max User SP 0 05 Min User SP 0 00 The pressure transducer compares the pressure outside the space to the pressure inside the space and transmits a corresponding signal to the AdaptAire controller The controller compares this signal to the desired user control setpoint 0 03 and uses the PID loop to modulate the output from 0 100 0 10Vdc The output is connected to the VFD which changes speed to maintain the specified building pressure If the building pressure is 0 03 the output from the controller will be determined by th
25. IONAL OR GAREVAINE 21 Tuv 122 ROS D ES Ld 125 a FLAME SUPERVISION 74 TRANSFORMER JUMPER 22 25 SWITCHING CONTACT TOFO 27 TE d gt GAS VALVE PILOT FAILURI AY FLAME FLAME og FAILURE REL 92 Bog CIRCUIT STATUS KEYPAD DISPLAY MODULE COOLING MODE ENABLE REMOTE ALARM INDICATION 1 REMOTE MOUNTED COOLING ENABLE CONTACT ALARM STATIS CONTACT CONTROL MODULE 4 pag 24 H d H Fe m SHIELDED CABLE 4 Ke pad D splay OUTSIDE AIR TEMPERATURE 255 Por bn SENSOR A 1 J 234 A040 7 SPACE TEMPERATURE 233 Gre SEE UNIT sensor 190 29 Nz 030 1 5 WIRING DISCHARGE AIR TEMPERATURE A 23 Sut DIAGRAM SENSOR 230 N3 20 S ur 7 A DENOTES BY OTHERS FAN STATIS oo 227 227 Ws UNIT ENABLE RELAY 10K OHN ENABLE SWITCH nps 2 me 225 BURNER ENABLE RELAY CLOGGED FILTER BURNER STATUS 224 005 4 20K OHM SWITCH 2 COOLING ENABLE RELAY Kz 004 8 F A1007 OUTSIDE ALARM STATUS RELAY 10K OHM AIR fi cae ET Fiane FALURE 219 I5 5 FLAME SUPERMSION 20K OHM CONTACT 202 Doz 4 1 it SWITCHING RELAY 22 o ARN D04 AIRFLOW STATION PRESSURE TRANSDUCER 7 de BUILDING PRESSURE TRANSDUCER 2 1 ON UNIT WIRING DIAGRAM 5 e Eg
26. LING MODE ENABLE REMOTE ALARM INDICATION f REMOTE MOUNTED COOLING ENABLE CONTACT ALARM STATIS CONTACT CONTROL MODULE 4 of had TX af SHIELDED CABLE NUM Keypad Display F OUTSIDE AIR TEMPERATURE 235 Pot ay 8 SENSOR I 234 A040 7 SEE_UNIT 8 WIRING SPACE TEMPERATURE E SENSOR o A03Q s DIAGRAM DISCHARGE AIR TEMPERATURE S SENSOR 1 1230 02 s 229 USER OUTPUT A DENOTES BY OTHERS FEN STATIS 258 5 Modes x 0 10VDC 227 UNIT ENABLE RELAY RESISTORS AUXILARY UNIT SAFETY STATUS 226 bd Dos T 10K OHM ENABLE SWITCH uL og 221 TIE 1 lg 1 BURNER ENABLE RELAY CLOGGED FILTER BURNER STATUS 224 Dos 35 20K OHM SWITCH 1 F Os fa I B24 ts COOLING ENABLE RELAY 004 5 4 100 OUTPUT r ALARM STATUS RELAY 10K OHM SWITCH DOS 4 5 4 gr i 119 Ox 00 2 r3 E gt DOA g 2 9 USER CONFIGURED TRANSDUCER INPUT TO LINE BLOCK Power OR OPTIONAL Q DISCONNECT SWITCH C000574 po 201 20 LOW VOLTAGE TRANSFORMER RECIRCULATING DFOA and DFIA MODEL DIAGRAM
27. LUTION Inspect burner control circuit This fault has the potential to be a very serious problem Close the manual gas valves immediately if the fan is not running 28 FAULT CODE Flame Failure sada aud RR DAS 29 SOLUTION Investigate flame relay see eo clita We ws erie o EU IG Ae e Rb e GREG 29 Diagnostics Non Critical Fault Codes 6 29 FAULT CODE Check Airflow Switches velata eda 29 SOLUTION If high airflow switch is opening Do not adjust the switch setpoints 29 SOLUTION If low airflow switch is opening Do not adjust the switch setpoints 30 FAULT CODE Clogged Filter SWIM s dedico oae Re e eden 30 SOLUTION If clogged filter switch is 30 FAULT CODE Energy Save Mode aei te dnd ae 3l SOLUTION If setpoints are misadjusted s ttt 31 SOLUTION _ If setpoints not misadjusted e ttt 31 FAULT CODE Energy Save c hah cate lead cdi 24 SOLUTION If OAT RoomT or DAT are such that heat is required 32 FAULT CODE Energy 33 SOLUTION If OAT RoomT or DAT are such that heat is 33 SOLUTION If setpoints are misadjusted 33 FAULT CODE e asap i M g dink aus 33 SOLUTION
28. OL ARRS TRANSFORMER JUMPER 103 104 JUMPER 101 103 575 02 IF NOT USED IF NOT USED UNIT SHALL BE GROUNDED ACCORDING TO THE LATEST PROVISIONS OF LOW AND HIGH GAS STARTER LOW AND HIGH VELOCITY HIGH PRESSURE SWITCHES VALVE RELAY INTERLOCK T AIRFLOW SWITCHES LIMIT OPTIONAL CONTACT AUX GAS VALVE Fe 116 Po 118 119 Sap 9 3 l a WE E I MAIN GAS VALVE JUMPER 119 120 A IF NOT USED u 17 SAFETY CIRCUIT STATUS RELAY FAN STATUS RELAY oo DAMPER MOTOR UNIT ENABLE RELAY RED 94 H 07 E h ies FAN BURNER ENABLE RELAY SWIS LOLOL STARTER 112 111 H H 10 o NSH FIELD PURGE TIMER LOCATION BOE OO BURNER STATUS GAS_VALVE FACTORY 9 RELAY INSTALLED JUMPER E T FLAME SENSOR 2 p EG KEYPAD DISPLAY MODULE COOLING MODE ENABLE REMOTE ALARM INDICATION 1 si REMOTE MOUNTED COOLING ENABLE CONTACT ALARM STATIS CONTACT CONTROL MODULE pa4 rpad x SHIELDED CABLE Diaplay n OUTSIDE AIR TEMPERATURE SENSOR tj aoa 7 SEE_UNIT on WIRING SPACE TEMPERATURE SENSOR of A03 s DIAGRAM DISCHARGE AIR TEMPERATURE p SENSOR 02 LI ng i E USER OUTPUT A DENOTES BY OTHERS CSS me e 0 10VDC 5 227 UNIT ENABLE RELAY RESISTORS AUXILARY UNIT SAFETY STATUS _226 10K OHM ENABLE SWITCH n 25 BURNER ENABLE RELAY CLOGGED FILTER BURNER STATUS 224 pos 4 20K OHM SWITCH m s bad I B24 223 COOLING ENABLE RELAY 220
29. and rectify 27 b Yes Continue 3 Is the burner enable relay s normally open contact closed a No Replace relay b Yes Continue 4 Is there a pilot flame present a No Refer to the Installation Operation and Maintenance Manual for guidance in troubleshooting the flame relay or ignition module b Yes Continue 5 Is the flame relay or ignition module main valve terminal energized a No Refer to the Installation Operation and Maintenance Manual for guidance in troubleshooting the flame relay or ignition module b Yes Continue 6 Is the gas valve burner status relay energized a No There is an open in the main valve control circuit Determine cause and rectify b Yes Continue 7 Is the gas valve burner status relay s normally open contact closed a No Replace relay b Yes Continue 8 Is there continuity across both IN 6 terminals 11 and 12 a No There is an open in the wiring between these terminals Determine cause and rectify b Yes Replace controller FAULT CODE Burner Hand PROBLEM The controller has not activated DO 5 to start the burner but the burner status input IN6 is receiving a signal that the burner is on SOLUTION Inspect burner control circuit This fault has the potential to be a very serious problem Close the manual gas valves immediately if the fan is not running 1 Is the controller output DO 5 LED lit a Yes Close manual gas valves There is a pro
30. blem with the controller program Contact factory b No Continue 2 Are the main automatic gas shutoff valves energized a No The main automatic gas shutoff valves are leaking Turn off unit and close manual gas valves Determine cause of valve failure and rectify b Yes Continue 3 Is the flame relay energized a No There is a short in the wiring of the gas valves Close manual gas valves Determine cause of short and rectify b Yes Continue 4 Is the burner enable relay energized 28 a Yes There is a short in the wiring of the flame relay Close manual gas valves Determine cause of short and rectify b No Continue 5 Is the burner enable relay s normally open contact closed a Yes Close manual gas valves Replace the relay b No Continue 6 Unplug the input terminals from the input jack Is there continuity between IN 6 terminals 11 and 12 a No Close manual gas valves There is a short in the wiring between the burner status relay and IN 6 Determine cause and rectify b Yes Close manual gas valves Replace the controller FAULT CODE Flame Failure PROBLEM DFOA and DFIA Models Only The controller has received a signal from the flame relay at input IN8 indicating a flame failure SOLUTION Investigate flame relay 1 Is there a prior alarm such as Unit On Fan Off Airflow Sw or Safety Circuit a Yes See the Diagnostic section for the previous alarm b No Continue 2 See flame relay troublesho
31. ce the sensor At 70 F the resistance should be 10KQ See thermistor output curve for other temperatures If it is not shorted there is a short in the wiring between the sensor and the input plug Determine cause and rectify Refer to Appendix II for a typical 10 thermistor output curve 2 Is the outside air sensor in the direct sunlight a Yes Provide shade for the sensor so it is not affected by the direct sun b No Contact factory SOLUTION If setpoints are misadjusted 1 Is the Econmzr Setpoint set for 80 F a Yes The outside air temperature is over 80 F and there should be no need for heat If this is not the case contact factory b No Increase the ECONMZR SP setpoint See Heating Mode Energy Savings Mode 3 section of this manual for more information FAULT CODE Insufficient OA PROBLEM The controller has turned off DOS because the percentage of outside air has dropped below 20 for more than five minutes and the unit is in the Heating mode 33 SOLUTION If heat is desired 1 Are the outside air hood filters or bird screen or any associated outside air ductwork obstructed a Yes Clear obstruction or change filters b No Continue 2 Are the outside air and return air dampers and actuators working properly a Yes Continue b No Make necessary adjustments and force the unit to recalibrate See Calibrate in the Resets Section of this manual 3 Are the AdaptAire flow measuring station pitot tubes a
32. cent of outside air See Heating Cooling Mode and Minimum Ventilation Sections of this manual b No Contact factory Glossary Equivalent temperature rise Simply stated this value is the actual temperature rise generated by the heater at any given time More precisely stated it is the quantity of outside air raised to the discharge air temperature plus the quantity of return air raised to the discharge air temperature It is equivalent to the heat actually delivered to the space The purpose for this in the burner control scheme is to limit the burner s firing rate based on the percentage of outside air and thus the carbon monoxide generated by the heater Expressed mathematically it is Teg OA Toa RA Taa Tra Local User Interface The BACview two line by sixteen character display used to change setpoints and monitor the unit s operation PID Control or loop Proportional Integral Derivative a common control scheme used in modulating HVAC systems 35 Menu Selection Tree UNIT MODES Auto Off Man o Auto o Off o Man Htg Clg o Heating o Cooling e Damper Mode o MA Temp Ctrl o Bldg Prs Ctrl o Manual Pos e Fuel Select o Natural Gas o Propane Gas e Home e Previous SETPOINTS e Roomt SP o F range 55 90 o Home o Previous e Htg Setback SP o F range 40 80 o Home o Previous e Clg Setback SP o F range 75 130 o Home o Previous e Max DAt SP o F range 55 130 o Home
33. ction automatically notifies the user of a dirty filter condition A Clogged Filter indication will appear on the local user interface This function is activated whenever a 20 000Q or 6 667Q resistance is connected across Universal Input 7 See the Typical Wiring Schematic and Multiplexed Input sections of this manual for more information 16 User Configured PID Control This function is applicable to non recirculating heaters only The User Configured PID Control function allows the user to control an analog output AO 1 based on a user defined analog input IN 9 and setpoint This function also allows the user to select the PID type direct or reverse acting and establish upper and lower control limits Five keypad entries define the operational parameters These parameters are User Control Setpoint Minimum User Setpoint Maximum User Setpoint Low User Input Value and High User Input Value The low and high input values describe the input transducer range The control setpoint is the primary operational parameter while the minimum and maximum setpoints describe the extents of the desired operating range and provide secondary control as described below The allowable range for all of these parameters is 9999 99 99999 09 The analog input must be connected to IN 9 Terminal A the IN 9 input is the positive terminal Terminal B on the IN 9 input is the negative terminal This input must be configured for either of two different t
34. ction toggles digital output DO1 The default for this setpoint is 55 F To change the Heating Night Setback setpoint scroll through the SETPOINTS menu tree locate the Heating Night Setback setpoint and enter a new temperature The allowable temperature range is 40 F 80 F Cooling Night Setback The Cooling Night Setback function automatically cycles the heater on if the room temperature rises above the Cooling Night Setback temperature setpoint and the heater is scheduled to be off If the heater is scheduled to be off and the Cooling Night Setback function turns the heater on the heater will be cycled off once the room air temperature has fallen 3 below the Cooling Night Setback setpoint This function toggles digital output DO1 The default for this setpoint is 100 F To change the Cooling Night Setback setpoint scroll through the SETPOINTS menu tree locate the Cooling Night Setback setpoint and enter a new temperature The allowable temperature range is 75 F 125 F Auxiliary Unit Enable The Auxiliary Unit Enable function overrides all other Auto Mode functions and automatically cycles the heater into operation This function is activated whenever a 10 000Q or 6 667Q resistance is connected across Universal Input 7 See the Typical Wiring Schematic and Multiplexed Input sections of this manual for more information This function can be used with a twist timer toggle switch door switch exhaust fan interlock or
35. d and the Heating Count function has been rearmed COOLING COUNT Cooling Count records each cooling start To reset a cooling count scroll through the menu tree locate the Resets branch and select Cooling Count Press the Enter key The word OFF should flash Now press the INC key and the word ON should flash on the display Press the Enter key again and ON should stop flashing Repeat this process so the word OFF is displayed and not flashing The cooling count has now been cleared and the Cooling Count function has been rearmed Diagnostics Critical Fault Codes This section should assist the user in troubleshooting critical fault codes messages which have been displayed on the local user interface 21 FAULT CODE Unit off Fan on PROBLEM The controller has not activated DO6 to start the fan but the fan status input IN4 is receiving a signal that the fan is running SOLUTION If fan is running 1 Is controller output LED for DO 6 lit a Yes There is a problem with the controller program Call factory b No Continue 2 Is controller output contact for DO 6 closed a Yes Turn off the power to the controller and recheck If contact is still closed the controller output is shorted Replace the controller b No Continue 3 Is the unit enable relay energized a Yes There is a short or jumper in the wiring Determine cause and rectify b No Continue 4 Is motor starter energized a Yes There is a short or jumper in t
36. e PID control sequence and the override will have no effect on the output If the building pressure is more than 0 03 the output from the controller will be determined by the PZD control sequence or the override whichever is less If the building pressure is less than 0 03 the output from the controller will be determined by the PZD control sequence or the override whichever is more 19 Max User SP 05 0 override scaler 03 100 03 PID 0 100 03 0 User Ctrl SP 0 100 Output override scaler Input lt 03 00 100 Min User SP Clock Set The Clock Set function is used to set the current time and date as well as enabling Daylight Saving Time To set the clock scroll through the menu tree locate the Clockset branch select Date and enter a new date and time Select DST to enable Daylight Saving Time Daylight Saving Time is the default If the unit is installed in the southern hemisphere Sou Hem must be enabled The default is not Sou Hem For you convenience Daylight Saving Time has been preprogrammed for the next several years To reset the starting and ending DST dates scroll through the DST menu tree locate the desired year and enter a new date Multiplexed Inputs The I O 6104 Automated Logic controller has 6 digital outputs 10 universal inputs and 4 analog outputs thus the name I O 6104 Connecting two switching devices each to input 7 and to input 8 has expanded
37. e controller 2 Yes Disconnect the sensor wiring at the sensor Connect an ohmmeter to the sensor If it is shorted replace the sensor At 70 F the resistance should be 10 See thermistor output curve for other temperatures If it is not shorted there is a short in the wiring between the sensor and the input plug Determine cause and rectify Refer to Appendix II for a typical 10KQ thermistor output curve b No Continue 3 Is the discharge air temperature DAt displayed on the BACview remote reading 40 F or less a Yes The discharge air temperature sensor circuit or the sensor itself is open Jumper the input for the sensor Did the display change to 150 F or more 1 No There is an open in the controller input Replace the controller 2 Yes Disconnect the discharge air temperature sensor wiring at the sensor Connect an ohmmeter to the sensor If it is open replace the sensor At 70 F the resistance should be 10KQ See thermistor output curve for other temperatures If it is not open there is a break in the wiring between the sensor and the input plug Determine cause and rectify b No Continue 25 4 Reset the alarm Check and note the DC voltage at AO 3 Set the Heating Setpoint for 90 F Set the MAX DAT and MIN DAT Setpoints for 130 F Did the Burner VDC displayed on the BACview remote increase a No Unless the outside air temperature is extremely warm the Burner VDC should have increased to 7 5VDC o
38. e Air function overrides all other damper control functions Minimum Ventilation The Minimum Ventilation function defines the minimum outside air percentage and automatically prevents the dampers from modulating below this point This function can be used in heating or cooling mode In the heating mode the AdaptAire controller will attempt to maintain a minimum of 2046 outside air by overriding other damper controls as necessary Anytime the outside air drops below 20 the burner will automatically cycle off To specify the Minimum Ventilation scroll through the menu tree locate the Setpoints branch and select Min Vent and enter the desired outside air percentage The allowable range is 0 100 outside air Freezestat The Freezestat function automatically cycles the heater off if the supply air temperature drops below the Freezestat setpoint for 3 continuous minutes There is an initial 8 minute delay prior activation on recirculating heaters and an initial 6 minute delay on non recirculating heaters The Freezestat function prevents digital output DO1 from activating and keeps the heater from starting The default for this setpoint is 45 F To change the Freezestat setpoint scroll through the menu tree locate the Setpoints branch select Freezestat SP and enter a new temperature The allowable temperature range is 35 F 50 F Clogged Filter An optional clogged filter switch is required for this function The Clogged Filter fun
39. e or supply air temperature and equivalent temperature rise There are three Energy Savings modes which could disable the burner Energy Savings Mode 1 Recirculating Heaters Energy Savings Mode 1 will automatically disable the burner if the mixed air temperature is equal to or greater than the minimum discharge air temperature setpoint and the room air temperature is 5 F above the room air temperature setpoint When the burner is disabled digital output DOS is deactivated This function is intended to restrain the room temperature from rising uncontrollably in buildings with internal heat gain In certain conditions it may be necessary to readjust the minimum discharge air or room temperature setpoint upward or adjust the outside return air ratio to provide a warmer supply air temperature Energy Savings Mode 1 Non Recirculating Heaters Energy Savings Mode 1 will automatically disable the burner if the outside air temperature is equal to or greater than the minimum discharge air temperature setpoint and the room air temperature is 5 F above the room air temperature setpoint When the burner is disabled digital output DOS is deactivated This function is intended to restrain the room temperature from rising uncontrollably in buildings with internal heat gain In certain conditions it may be necessary to readjust the minimum discharge air or room temperature setpoint upward or adjust the outside return air ratio to provide a warmer supply air tempe
40. ect Mixed Air SP and enter the desired temperature The allowable range is 30 F 80 F Anytime the outside air drops below 20 the burner will automatically cycle off See Minimum Ventilation 15 BUILDING PRESSURE MODE The Building Pressure mode varies the percentages of outside air and return air to maintain a constant pressure within the space A pressure transducer compares the pressure outside the space to the pressure inside the space and transmits a corresponding signal to the AdaptAire controller The controller compares this signal to the desired building pressure setpoint and uses a PID loop to modulate the outside air and return air dampers to maintain the specified building pressure To place the damper operation in Building Pressure Mode scroll through the menu tree locate the Damper Mode branch and select Bldg Prs Ctrl Next scroll through the menu tree locate the Setpoints branch select Bldg Prs SP and enter the desired pressure The allowable range is 0 05 wc to t 0 05 wc Anytime the outside air drops below 20 the burner will automatically cycle off See Minimum Ventilation 100 OUTSIDE AIR The 100 Outside Air function automatically opens the outside air dampers and closes the return air dampers This function is activated whenever a 10 000Q or 6 667Q resistance is connected across Universal Input 8 See the Typical Wiring Schematic and Multiplexed Input sections of this manual for more information The 100 Outsid
41. er a new temperature The allowable temperature range is 55 F 90 F The cooling will be disabled when the room temperature drops 3 F below the Cooling Setpoint Damper Control Modes There are four different modes which control the heater damper operation Manual Mixed Air Temperature Building Pressure and 100 Outside Air Except for the 100 Outside Air mode these operating modes are selected through the menu tree of the local user interface or PC MANUAL MODE Manual Mode is the default damper operational mode This will set the outside air damper to a fixed position To place the damper operation in Manual Mode scroll through the menu tree locate the Damper Mode branch and select Manual Pos Next scroll through the menu tree locate the Setpoints branch select Man Vent SP and enter the desired damper position The allowable range is 0 to 100 Any setting below 20 will cause the burner to automatically cycle off MIXED AIR TEMPERATURE MODE The Mixed Air Temperature mode varies the percentages of outside air and return air to maintain a constant mixed air temperature The AdaptAire controller computes the mixed air temperature using the outside air and return air temperatures and the ratio of their respective airflows To place the damper operation in Mixed Air Temperature Mode scroll through the menu tree locate the Damper Mode branch and select MA Temp Ctrl Next scroll through the menu tree locate the Setpoints branch sel
42. est discharge air temperature which will leave the heater 13 To change the desired maximum supply or discharge air temperature scroll through the SETPOINTS menu tree locate the MAX DAT Setpoint and enter a new temperature This temperature must not be less than the MIN DAT Setpoint The allowable temperature range is 55 F 130 F This sets the highest discharge air temperature which will leave the heater If the maximum and minimum discharge temperature setpoints are set for the same temperature the supply air temperature will be the same as the setpoint regardless of the room temperature setpoint or actual room temperature Direct fired heaters deliver all of their products of combustion directly to the heated air space For this reason it is extremely important that the proper ventilation rate be maintained to dilute these emissions The AdaptAire system accurately measures the ratio of outside and return air calculates the allowable equivalent temperature rise and automatically limits the burners firing rate This insures the products of combustion delivered to the space by the heater are held at or below allowable OSHA thresholds The outside air percentage is the driving parameter for this function A greater percentage of outside air or dilution air enables the heater to generate a higher allowable equivalent temperature rise In order of lowest to greatest priority the burner modulation parameters are room temperature discharg
43. fan status relay energized a No There is an open or break in the wiring Determine cause and rectify b Yes Continue 5 Is the fan status relay s normally open auxiliary contact closed a No Replace relay b Yes Continue 6 Is there continuity between both IN 4 terminals 7 and 8 a No There is an open in the wiring between these terminals Determine cause and rectify b Yes Replace controller SOLUTION If fan motor is not running 1 Is the BACview remote indicating an alarm a Yes Check previous alarms and continue b No Continue 2 Is controller output LED for DO 6 lit a No There is a problem with the controller Replace controller b Yes Continue 3 Is the unit enable relay energized a No There is an open in the wiring between these terminals Determine cause and rectify b Yes Continue 4 Is the unit enable relay s normally open contact closed a No Replace relay b Yes Continue 5 Is the motor overload relay tripped a Yes Determine cause rectify and reset b No Continue 6 Is the motor starter energized a No There is an open or break in the wiring Determine cause and rectify b Yes Check motor and motor wiring FAULT CODE Low Discharge Temperature PROBLEM The controller has detected a low temperature at the fan outlet and has shut off the unit See Freezestat section of this manual SOLUTION If burner was operating prior to shutdown check prior alarm log 1 Is the outside
44. function forces the controller to recalibrate the return air flow station The recalibration will occur immediately if the fan is running or at the next fan start To recalibrate scroll through the menu tree locate the Resets branch and select Calibrate Press the Enter key The word OFF should flash Now press the INC key and the word ON should flash on the display Press the Enter key again and ON should stop flashing Repeat this process so the word OFF is displayed and not flashing The calibration has now been initiated and the Calibration function has been rearmed FAN COUNT Fan Count records each fan start To reset a fan count scroll through the menu tree locate the Resets branch and select Fan Count Press the Enter key The word OFF should flash Now press the INC key and the word ON should flash on the display Press the Enter key again and ON should stop flashing Repeat this process so the word OFF is displayed and not flashing The fan count has now been cleared and the Fan Count function has been rearmed HEATING COUNT Heating Count records each burner start To reset a heating count scroll through the menu tree locate the Resets branch and select Heating Count Press the Enter key The word OFF should flash Now press the INC key and the word ON should flash on the display Press the Enter key again and ON should stop flashing Repeat this process so the word OFF is displayed and not flashing The heating count has now been cleare
45. h cannot be reset replace it See Installation Operation and Owners Manual for more information b Yes Continue 3 Is the high gas pressure switch closed a No Verify the firing rate pressure at full input is as specified on the unit rating plate The high gas pressure switch setpoint should not be adjusted The firing rate pressure must remain as specified when unit fires at full input Correct gas pressure and reset switch If the switch cannot be reset replace it See Installation Operation and Maintenance Manual for more information b Yes Continue 4 Is the safety circuit relay energized a No Check for loose wiring and rectify b Yes Continue 5 Is the safety circuit relay s normally open contact closed a No Replace the relay b Yes Continue 8 Is there continuity across both IN 5 terminals 9 and 10 a No There is an open in the wiring between these terminals Determine cause and rectify b Yes Replace controller FAULT CODE Burner Status PROBLEM The controller has activated DOS to start the burner but the burner status input IN6 is not receiving a signal that the burner is SOLUTION Inspect burner control circuit and burner 1 Is there a prior alarm such as Unit On Fan Off Airflow Sw or Safety Circuit a Yes See the Diagnostic section for the previous alarm b No Continue 2 Is the burner enable relay energized a No There is an open in the 24VAC circuit Determine cause
46. he wiring Determine cause and rectify b No Continue 5 Is the fan status relay energized a Yes There is a short or jumper in the wiring Determine cause and rectify b No Continue 6 Is the fan status relay s normally open contact closed a Yes Replace relay b No Continue 7 Is there continuity between both IN 4 terminals 7 and 8 a Yes There is a short in the wiring between these terminals Determine cause and rectify b No Replace controller SOLUTION If fan is not running 1 Is the fan status relay s normally open contact closed a Yes Replace relay b No Continue 2 Is there approximately 5VDC at both IN 4 terminals 7 and 8 a Yes There is a short in the wiring between these terminals Determine cause and rectify b No Replace controller FAULT CODE Unit on Fan off PROBLEM The controller has activated DO6 to start the fan but the fan status input IN4 is not receiving a signal that the fan is running SOLUTION If fan motor is running 1 Is the BACview remote indicating an alarm a Yes Check previous alarms and continue b No Continue 2 Is the motor starter s normally open auxiliary contact closed 22 a No Replace contact b Yes Continue 3 Are the high and low velocity airflow switch contacts closed a No Are the belts on and is the fan motor 1 Yes Contact factory Do not adjust the switches setpoints 2 No Determine cause and rectify b Yes Continue 4 Is the
47. ilters and continue b No Continue Are the airflow switch sensing tubes obstructed a Yes Clear and continue b No Continue Is the airflow switch setpoint properly adjusted a No Adjust setpoint b Yes Continue Are the wires connected to the air pressure switch s normally open contact a No Rewire switch and continue b Yes Continue Is the air pressure switch s normally open contact open a No Disconnect the sensing tubes and recheck Replace the switch if contacts do not open 30 b Yes Continue 6 Disconnect the wire from terminal 13 of IN7 Does this clear the alarm a Yes There is short in the wiring Determine cause and rectify b No There is an internal short in the controller Replace the controller FAULT CODE Energy Save Mode 1 PROBLEM The controller has turned off DOS because it determined the mixed air temperature is equal to or greater than the minimum discharge air temperature setpoint and the room air temperature is 5 F above the room air temperature setpoint See the Energy Savings Mode 1 section of this manual for more information SOLUTION If setpoints are misadjusted 1 Is the mixed air temperature MAt displayed on the BACview remote greater than or equal to the minimum discharge air temperature setpoint a Yes Increase the MIN DAT setpoint See Heating Mode General Burner Control section of this manual for more information b No Continue 2 Is the room temperature mo
48. inue 3 Reset the alarm Check and note the DC voltage at AO 3 Set the Heating Setpoint for 90 F Set the MAX DAT and MIN DAT Setpoints for 130 F Did the Burner VDC displayed on the BACview remote increase a No Unless the outside air temperature is extremely warm the Burner VDC should have increased to 7 5 VDC or more Close the manual main gas valve closest to the burner and measure the discharge air temperature Is it less than 130 F 1 Yes There is a problem with the controller program or controller itself Contact the factory 2 No The outside air temperature is too hot to determine the actual cause of the problem Reset the alarm and recheck when the outside air temperature is much cooler b Yes This signal is fed to the Maxitrol A200 signal conditioner Disconnect the wires from terminals 5 and 6 on the A200 and measure the voltage on the wires Is it the same as the voltage coming from the controller 1 No There is an open in the wiring from the controller output Correct wiring and reconnect the wires to the terminals on the A200 Be sure the wire from AO 3 terminal number 6 is connected to the A200 s terminal number 5 2 Yes Continue 4 Isthere 24VAC on the A200 terminals 1 and 2 a No Determine cause and rectify b Yes Continue 5 Is there twice the DC voltage on the A200 terminals 3 and 4 as there is on terminals 5 and 6 a No Replace the A200 b Yes Continue 24 c Yes Continue 6 Is the DC
49. it on distance from controller IN3 Discharge Air sensor INA Fan Status INS Safety Circuit Status IN6 Burner Status IN7 Multiplexed A Auxiliary Unit Enable B Clogged Filter IN8 Multiplexed A 100 Outside Air Switch B Flame Failure from flame IN9 Pressure Transducer for Building Pressure Control or User Configured IN10 Pressure Transducer for Flow Station Typical Wiring Schematic RECIRCULATING CDF MODEL DIAGRAM CAUTION OPEN MAIN DISCONNECT SWITCH BEFORE SERVICING STARTER TIONAL EQUIPMENT ol 208 230 480 575 VOLT 2 H Ob ELECTRONIC RELAY 3 d iso 24 VAC 29 60 HERTZ pe z Ed MODULATING 1 32 BAMPE MOTOR
50. nd Night Setback functions The Off mode prevents digital output DOI from activating and keeps the heater from starting MANUAL MODE Manual Mode allows the supply fan to turn on regardless of the Time Clock or Night Setback functions To place the unit in Manual Mode scroll through the Unit Modes menu tree locate the AUTO OFF MAN branch and select MANUAL This will place the unit in the MANUAL mode This function activates digital output AUTO MODE Auto Mode has four different functions which control the supply fan and unit operation They are a time clock function heating and cooling night setbacks and a signal from an external source to an auxiliary digital input To place the unit in Auto Mode scroll through the Unit Modes menu tree locate the AUTO OFF MAN branch and select AUTO This will place the unit in the AUTO mode This activates the four Auto mode functions Scheduling Time Clock The primary Auto Mode function is the Time Clock Schedule The Time Clock function allows the user to schedule the operational times of the heater There are three different schedules available normal holiday and override Each of these schedules can be programmed for up to nine separate On Off events with any combination of days The normal schedule sets the typical On Off times for the heater The holiday schedule sets the Off times for holidays and other shutdown periods The override schedule sets the On times that will override the holiday
51. nd pressure tubing clear a Yes Continue b No Clean and force the unit to recalibrate See Calibrate in the Resets Section of this manual 4 Do the dampers track with a change in the OA setpoint The dampers utilized on the heater are not linear with respect to airflow and openness and as such the proportion of outside air damper movement will not be exactly equal to the OA setpoint However at 20 OA the dampers should be approximately 1 2 open a Yes Continue b No Check the damper motor and linkage connections When 24VAC is powering the damper actuator and the control signal is 0VDC the outside air damper should be close to a rattle tight position and the return air damper should be open If the 24VAC power is removed the actuator will draw the outside air damper tightly closed and the return air damper tightly open When 24VAC is powering the damper actuator and the control signal is 10VDC the outside air damper should be fully open and the return air damper should be closed 5 Is there approximately 24VAC at the COM and EXC terminals on the airflow station pressure transducer a Yes Continue b No Is there 120VAC on the primary side of the low voltage transformer and 24VAC volt at the transformer secondary 1 Yes There is an open in the wiring between the transformer and the transducer Locate the wiring problem and rectify 2 No If there is 120VAC on the primary and on the secondary re
52. neral Burner Control eee utei te e teet bre ease taa 13 Energy Savings Mode 1 Recirculating Heaters essent 14 Energy Savings Mode 1 Non Recirculating 404002 2 21002 ener 14 Enetgy Savings Mode 2 nette E e DR seat YER a r SO ee Pedes URS 14 Energy Savings Mode 3 sos etian m etes odode a eda Utere 15 COOLING MODE Syria 15 Damper Control Modes uunaeccacecccceeoeoooooooocooocoonnnnanononzeesnncuauonenentuennannunuoneu1e 15 MANUAL MODE S d eae to 15 MIXED ATR TEMPERATURE MODE id iisdem t ceo d le te bodie Lud ice 15 BUILDING PRESSURE MODE 16 TUU TOU TSIPE CIR etit a sale va A 16 Minimum 222222 16 Freezestat to edlen pM verit de ure 16 Closed eoe 16 User Configured PID Control nitentes i tert 17 DIREGCE ACTING toli a tetas dde 17 REVERS AG TING s salsa smsa aa 19 Clock laa rrr 20 Multiplexed 20 the
53. ns Blower Status Burner Status Safety Limits Unit Enable Burner Enable FSG Alarm Enable Cooling Enable Flame Rod Switch Fan Cntr Clear Reset Fan Fault Status Bnr Cntr Clear Cool Cntr Clear Aux On Filter Dirty All Vent FSG Alarm H C Mode Select Fuel Select Force Calibrate Network Enable R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R Appendix 11 10KQ Thermistor Output Curve Typical 10 000 Ohm Thermistor Output Curve 180000 170000 160000 150000 140000 Resistance Ohms e 22 4 14 32 41 50 59 68 77 86 95 104 113 122 131 140 149 Temperature in Degrees Typical 10 000 Ohm Thermistor Output Curve 30000 25000 20000 15000 10000 Resistance Ohms 5000 32 41 50 59 68 77 86 95 104 Temperature in Degrees F 44 Appendix III Airflow Station Layout AIRFLUW STATION AIRFLOW STATION AMPLIFIER WING SHEET METAL STRIP TOTAL PRESSURE SENSING TUBE STATIC PRESSURE SENSING p AIRFLOW JE xu senis HIGH PRESSURE TUBE CONNECTION HEATER RA DAMPER d nn LOW PRESSURE TUBE CONNECTION 45
54. o Previous e Min DAt SP o F range 40 130 o Home o Previous e Mixed Air SP o F range 30 80 o Home o Previous e Bldg Prs SP o WC range 0 05 0 05 36 o Home o Previous e Man Vent SP o 9 range 0 100 o Home o Previous e Min Vent SP o range 0 100 o Home Previous e Econmzr SP o F range 40 80 o Home o Previous e Freeze SP o F range 35 80 o Home o Previous e Home e Previous STATUS MENU Roomt OAt DAt F MAt F MaxEQ Bldg P WC Dmprs VDC Burner VDC User In User Out Fan Hrs Fan Cyc Htg Hrs Htg Cyc Clg Cyc Clg Hrs Home Previous ALARM e Alarm History Critical o Non Critical o Return Normal 37 o Previous RESETS Alarm RS Calibrate Fan Count Htg Count Clg Count Previous SCHEDULES e Normal o Schedulel typical 1 through 16 V V gt gt gt e Holiday Start hr min Stop hr min DAYS SUN MON TUE WED THU FRI SAT Prev Next o Holidayl typical 1 through 16 VVVVV e Override MM DD Start hr min Stop hr min Prev Next month day o Overridel typical 1 through 8 MM DD month day Start hr min Stop Prev Next USER CONFIGURABLE IO e PID Select o PID Type Direct Acting Reverse Acting o Home o Previous e Hi Input Val o Home o Previous e Lo Output Val o Home o Previous e User Control SP o Home o Previous 38 Max User SP
55. oting information in unit Installation Operation and Maintenance Manual Diagnostics Non Critical Fault Codes This section should assist the user in troubleshooting non critical fault codes messages which have been displayed on the local user interface FAULT CODE Check Airflow Switches PROBLEM The controller has activated DO6 to start the fan and detected that the fan is running from a signal at the fan status input IN4 Subsequently the controller has detected a momentary opening of the fan status input INA The momentary opening must occur within two seconds of the previous closure for this fault to occur SOLUTION If high airflow switch is opening Do not adjust the switch setpoints 1 Are all of the filters in place a No Install filters and continue b Yes Continue 2 Does the external static pressure match that listed on the rating plate a No Verify all associated ductwork is installed and continue b Yes Continue 3 Does the fan RPM match that listed on the Spec Sheet a No Correct to reduced fan speed and continue b Yes Continue 4 Are the airflow switches sensing tubes obstructed a Yes Clear and continue b No Continue 5 Contact factory 29 SOLUTION If low airflow switch is opening Do not adjust the switch setpoints 1 6 Does low airflow switch open when the burner is off a No Disconnect both pressure sensing tubes from one of the airflow switches and measure the differential
56. place the transformer If there is OVAC on the primary there is an open in the wiring supplying power to the transformer Locate the wiring problem and rectify 6 Remove both of the plastic tubes from the airflow station pressure transducer and gently blow into the HIGH side port Is there approximately 5VDC across the COM and OUT terminals of the pressure transducer a Yes Continue b No The pressure transducer is defective Replace it 7 Remove both of the plastic tubes from the airflow station pressure transducer and gently blow into the HIGH side port Is there approximately 5VDC across the IN 9 terminals 17 and 18 terminals a Yes There is a problem with the controller Replace it b No There is an open in the wiring between these pressure transducer and the AdaptAire controller terminals Locate and rectify 34 SOLUTION If less outside air is desired 1 Is heat required a Yes The AdaptAire control system must be in the Heating mode In this mode the smallest allowable amount of outside air is 20 Verify the system is in the Heating mode and the MIN VENT SP is set for 20 See Heating Cooling Mode and Minimum Ventilation Sections of this manual b No Continue 2 Is cooling or ventilation required a Yes The AdaptAire control system must be in the Cooling mode In this mode the smallest allowable amount of outside air is 0 Verify the system is in the Cooling mode and the MIN VENT SP is set for the desired per
57. r more Close the manual main gas valve closest to the burner and measure the discharge air temperature Is it less than 130 F 1 Yes There is a problem with the controller program or controller itself Contact the factory 2 No The outside air temperature is too hot to determine the actual cause of the problem Reset the alarm and recheck when the outside air temperature is much cooler b Yes This signal is fed to the Maxitrol A200 signal conditioner Disconnect the wires from terminals 5 and 6 on the A200 and measure the voltage on the wires Is it the same as the voltage coming from the controller 1 No There is an open in the wiring from the controller output Correct wiring and reconnect the wires to the terminals on the A200 Be sure the wire from AO 3 terminal number 6 is connected to the A200 s terminal number 5 2 Yes Continue 5 Is there 24VAC on the A200 terminals 1 and 2 a No Determine cause and rectify b Yes Continue 6 Is there twice the DC voltage on the A200 terminals 3 and 4 as there is on terminals 5 and 6 a No Replace the A200 b Yes Continue c Yes Continue 7 Is the DC voltage on the Maxitrol modulating valve terminals the same as the DC voltage on the A200 terminals 3 and 4 a No There is a break in the wiring between the A200 and the modulating valve terminals Determine cause and rectify b Yes The electronics are working to this point Continue 8 Is there sufficient temperat
58. rature Energy Savings Mode 2 Energy Savings Mode 2 will automatically disable the burner if the burner s minimum firing rate exceeds the allowable equivalent temperature rise When the burner is disabled digital output DOS is deactivated This condition is unlikely to occur unless the burner s minimum firing rate is misadjusted and set too high or the inlet air opening is restricted 14 Energy Savings Mode 3 Energy Savings Mode 3 will automatically disable the burner if the outside air temperature is above the Outside Air Economizer setpoint When the burner is disabled digital output DOS is deactivated This function is similar to an inlet duct thermostat The burner will cycle back on if the supply air temperature drops 3 F below the Outside Air Economizer setpoint To change the desired outside air economizer temperature scroll through the SETPOINTS menu tree locate the ECONOMIZER Setpoint and enter a new temperature The default for this setpoint is 65 F The allowable temperature range is 40 F 80 F COOLING MODE Cooling Mode allows the cooling to operate as needed When cooling is required digital output DO4 will be activated To place the unit in Cooling Mode scroll through the Unit Modes menu tree locate the HTG CLG OFF branch and select Cooling This will place the unit in the Cooling mode To change the desired cooling operational temperature scroll through the Setpoints menu tree locate the Cooling Setpoint and ent
59. re than 5 F above the room air temperature setpoint a Yes Increase the Roomt SP setpoint See Heating Mode General Burner Control section of this manual for more information b No Continue SOLUTION If setpoints are not misadjusted 1 Is there a prior alarm such as Insufficient OA a Yes See the Diagnostic section for the previous alarm b No Continue 2 Is the discharge air temperature DAT displayed on the BACview remote reading 150 F or more a Yes That sensor circuit or the sensor itself is shorted Unplug the input jack from the AdaptAire controller Did the display change to 40 F or less 1 No There is a short in the controller input Replace the controller 2 Yes Disconnect the sensor wiring at the sensor Connect an ohmmeter to the sensor If it is shorted replace the sensor At 70 F the resistance should be 10KQ See thermistor output curve for other temperatures If it is not shorted there is a short in the wiring between the sensor and the input plug Determine cause and rectify Refer to Appendix II for a typical 10KQ thermistor output curve b No Contact factory FAULT CODE Energy Save Mode 2 PROBLEM The controller has turned off DOS because it determined the burner s minimum firing rate exceeds the allowable equivalent temperature rise See the Energy Savings Mode 2 section of this manual for more information 31 SOLUTION If OAT RoomT or DAT are such that heat is required 1
60. schedule This scheduling system allows the user to program a diverse array of On Off operations An example of a typical schedule would be to have the heater On Monday through Friday from 6 00 AM to 5 00 PM except during the weeks of Thanksgiving and Christmas when the heaters will be Off However they will run each weekday during the Thanksgiving shutdown from 8 00 AM until noon while a maintenance crew is in the building AdaptAire has no preset operational schedule To set the operational times of the heater scroll through the SCHEDULES menu tree and locate the desired Normal Holiday or Override branch Enter the days and times for the heater to operate In the Normal or Override section these times should correspond to the desired on times for the heater s operation In the Holiday section these times should correspond to the desired off times for the heater s operation See the CLOCK SET section of this manual for setting the time date and Daylight Savings function Heating Night Setback The Heating Night Setback function automatically cycles the heater on if the room temperature falls below the Heating Night Setback temperature setpoint and the heater is 12 scheduled to be off If the heater is scheduled to be off and the Heating Night Setback function turns the heater the heater will be cycled off once the room air temperature has risen 3 above the Heating Night Setback setpoint This fun
61. sformer Locate the wiring problem and rectify 7 Remove both of the plastic tubes from the airflow station pressure transducer and gently blow into the HIGH side port Is there approximately 5VDC across the COM and OUT terminals of the pressure transducer a Yes Continue b No The pressure transducer is defective Replace it 8 Remove both of the plastic tubes from the airflow station pressure transducer and gently blow into the HIGH side port Is there approximately 5VDC across the IN 9 terminals 17 and 18 terminals a Yes There is a problem with the controller Replace it b No There is an open in the wiring between these pressure transducer and the AdaptAire controller terminals Locate and rectify FAULT CODE Energy Save Mode 3 PROBLEM The controller has turned off DOS because it determined the inlet air temperature exceeds the Economizer setpoint See the Energy Savings Mode 3 section of this manual for more information SOLUTION If OAT RoomT or DAT are such that heat is required 1 Is the outside air temperature OAT displayed on the BACview remote reading 150 F or more a Yes The outside air sensor circuit or the sensor itself is shorted Unplug the input jack from the AdaptAire controller Did the display change to 40 F or less 1 No There is a short in the controller input Replace the controller b Yes Disconnect the sensor wiring at the sensor Connect an ohmmeter to the sensor If it is shorted repla
62. ture control schemes All of these modes provide the maximum in heater operational flexibility The patent applied for airflow station imparts unparalleled adaptability into the operation of each heater A daily self calibration enables AdaptAire to detect the total air volume and the exact ratio of outside and return air entering the heater Then AdaptAire daily fine tunes the heater s operation based on these new parameters Air volume can vary because of changes in static pressure conditions due to loading filters VAV boxes and building dynamics These varying conditions influence the ventilation air provided by the heater which in turn impacts the allowable equivalent temperature rise of the heater Systems which do not measure the outside air return air ratio and recalibrate themselves accordingly may cause the burner to shut off when it is need the most AdaptAire diagnostic capabilities insure swift response to abnormal heater conditions A fault is generated anytime the operational parameters and actual heater operation are at odds An indication of trouble is displayed at the local user interface and system PC in text format In the Diagnostics section of this manual is a list of all faults and possible causes and solutions All of the features of the AdaptAire system are designed to provide the user with real time information At any time the user can display all of the operational parameters make changes if necessary and observe the
63. ure rise for the amount of outside air that is being delivered to the space a No Follow the instructions in this manual for placing the heater in Manual Pos damper control Adjust the Man Vent setpoint to 20 outside air Is there sufficient temperature rise for the amount of outside air that is being delivered to the space 1 No Contact the factory 2 Yes Continue b Yes Continue 9 Verify there is sufficient inlet gas pressure Verify the modulating valve is properly adjusted Verify the burner orifices are clear of obstruction Contact the factory FAULT CODE Safety Circuit Open PROBLEM The controller has detected a failure in the safety circuit 26 SOLUTION If fan is not running check prior alarm log 1 Is there a prior alarm such as Unit On Fan Off or Airflow Sw a Yes See the Diagnostic section for the previous alarm b No Continue 2 Set Unit Mode to Manual Did fan start a No See the Diagnostic section for Unit On Fan Off b Yes Continue SOLUTION If fan is running check prior alarm log 1 Is the high temperature limit tripped a Yes Determine cause and rectify b No Continue 2 Is the low gas pressure switch closed a No Verify the inlet gas pressure is as specified on the gas piping diagram The low gas pressure switch setpoint should not be adjusted The inlet gas pressure must remain as specified when unit fires at full input Correct gas pressure and reset switch If the switc
64. us DEV device type COMERR communication error Mod Obj This is the data address on the Modbus device N2 Fmt The Network Point type Valid Modbus formats are AI Exposed as an Analog Input BI Exposed as an Binary Input AO Exposed as an Analog Output BO Exposed as an Binary Output ADF Exposed as an Analog Data Float ADI Exposed as an Analog Data Integer BYT Exposed as a Data Byte N2 Obj The N2 Network Point address 1 255 41 Non Recirculating Cache Table for Modbus and N2 Pee Non Only NUMBER DESCRIPTION ACTION FMT OBJ Space Temp FLOAT 30001 A OA Temp FLOAT 30003 A DA Temp FLOAT 30005 User PID Input FLOAT 30038 i eee 14003 User Output Expose to FLOAT 30040 AO Htg Nite SP Unit Enable A O M 40013 ADI Freeze Stat SP Fan Cycles Fan Hours Bnr Cycles Bnr Hours Inlet Duct SP Heating SP Gas Open Min DAT SP Cooling Cycles Cooling Hours Cooling SP Max DAT SP Clg Nite SP User Ctrl SP Low User Range Hi User Range User Output Min User SP Max User SP Blower Status Burner Status Safety Limits Unit Enable Burner Enable FSG Alarm Enable Cooling Enable Flame Rod Switch H 222212 212122121 21212 2 2 212 2 BV 15001 Fan Cntr Clear Expose to DO 1 BO 16 N BV 15002 Reset Expose to
65. voltage on the Maxitrol modulating valve terminals the same as the DC voltage on the A200 terminals 3 and 4 a No There is a break in the wiring between the A200 and the modulating valve terminals Determine cause and rectify b Yes The electronics are working to this point Continue 7 Is there sufficient temperature rise for the amount of outside air that is being delivered to the space a No Follow the instructions in this manual for placing the heater in Manual Pos damper control Adjust the Man Vent setpoint to 20 outside air Is there sufficient temperature rise for the amount of outside air that is being delivered to the space 1 No Contact the factory 2 Yes Continue b Yes Continue 8 Verify there is sufficient inlet gas pressure Verify the modulating valve is properly adjusted Verify the burner orifices are clear of obstruction Contact the factory SOLUTION If burner was not operating prior to shutdown check prior alarm log 1 Is there a prior alarm such as Safety Ckt Airflow Sw or Flame Failure a Yes See the Diagnostic section for the previous alarm b No Continue 2 Is the room air RoomT or discharge air temperature DAt displayed on the BACview remote reading 150 F or more a Yes That sensor circuit or the sensor itself is shorted Unplug the input jack from the AdaptAire controller Did the display change to 40 F or less 1 No There is a short in the controller input Replace th
66. ypes of input signals 0 5 The output impedance must not exceed 10KQ The input impedance of the controller is IMQ 0 20mA or 4 20mA The input resistance on the A terminal is 250Q The B terminal supplies a voltage source to power the transducer The B terminal is capable of supplying 18 24Vdc but the total current of all B terminals must not exceed 200mA If the voltage measured from the terminal to Gnd is less than 18Vdc an external power supply is required See the wiring diagrams for recirculating model heaters for typical connections of transducers The IN 9 configuration jumpers on the controller must be set for the appropriate input signal A thermistor or RTD must not be used The analog output is AO 1 and is 0 10Vdc Polarity is identified at AO 1 by Gnd and A contact closure across IN 8 will drive the output to 100 DIRECT ACTING The controller output AO 1 is modulated by a PID loop from 0 to 100 based on the User Control setpoint and the input signal to IN 9 As the input signal increases the output voltage increases Additionally a secondary control acts to override the PID loop to scale the output as follows If the input variable equals the User Control setpoint the output will be determined by the PID loop In this situation the override has no effect on the output value If the input variable is above the User Control setpoint the output could increase from 0 to 10

AdaptAire Digital Control System User Manual

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