Installation & Service Manual
Contents
1. 7 Optional Dual Temperature 7 Electrical Procedures 8 Electrical Considerations 8 Defrost Information 8 Defrost Control Chart 8 Installation Procedure Check Lists See General UL NSF I amp S Man Wiring Diagrams 8 NFX NFSX NCSX NFSGX NCSGX Domestic amp Export 50 Hz Case Circuits 9 Dual Temperature Control Circuits 11 Cleaning and Sanitation See General UL NSF 1 5 Manual Component Removal and Installation Instructions for Cleaning 13 Bottom Trays 13 NSF Product Thermometer 13 Discharge Air Honeycomb 13 Rear Riser Panels 13 Front Air Duct Panels 13 Rear Riser Canopy Cover 13 Front Cladding 22 uec hh deeds ceed peter de 13 Page 2 November 2007 NFX NFSX NCSX Installation amp Service Manual NFSGX NCSGX Page Service Instructions Preventive Maintenance See General UL NSF 185 Manual Fan Blade and Motor Replacement See Gen UL NSF 1 5 Manual Color Band and Bumper Replacement See Gen UL NSF2. 9028666 IAGRAM WRG ELEC DFR FX NFS G X NCS G X E cx T97 057 Ew mese er fox 030 ANGLES 1 DEG DESCRIPTION AND REMOVED THE 5123836 CHANGED THE BORDER DECIMALS Page 9 MAAR Page 10 NOTE 3 LAMPS FOR 12FT CASES IS SHOWN 2 LAMPS AND A TWO LAMP BALLAST OPTIONAL T8 CANOPY LIGHTING PEE WN er A CASES SECOND SHELF ANTI SWEAT HEATER IS REQUIRED ON NON LIGHTED SHELF WAMWAWWWMWWW Fi OPTIONAL SHELF ANTI SWEAT HEATER WAWMAWAWAWAWW L i SHELF WIRING FOR NFSX NCSX CASES REAR RISER NOSE WWM ANT SWEAT HEATER LEFT_END HEATED GLASS PANEL ANT SWEAT HARNESS 5212544 USED ON GLASS FRONT CASES RIGHT END HEATED GLASS PANEL iui oo GLASS RETAINER HEATER WAMMAWWAWMWW L 1 EXT HARNESS 5220495 ANTI SWEAT HEATER CONNECTIONS FOR GLASS FRONT CASES OPTIONAL SOLENOID VALVE 111 121 NW FAN PANEL fo Lo to e FAN MOTORS 3 PER 12FT 2 PER 8FT CASES OPTIONAL CASE TEMPERATURE THERMOSTAT OPTIONAL HOT GAS DEFROST TERMINATION KLIXON OPENS 55 F CLOSES 40 F OR CLOSES 55 F OPENS 40 F THE KLIXON 15 MOUNTED ON THE PIPE BETWEEN THE DISTRUBITOR AND THE CHECK VALVE ON THE EVAPORATOR COIL I RACK CONTROL CIRCUITS NO 390 3514 NO 36019 NMONB OTE ALL CASES MUS
3. ZY Carrier A United Technologies Company REFRIGERATION van Installation amp Service Manual NFX NFSX NCSX NFSGX NCSGX OPEN WELL FROZEN FOOD amp ICE CREAM MERCHANDISERS Low Temperature Self Serve Display Cases This manual has been designed to be used in conjunction with the General UL NSF Installation amp Service Manual Save the Instructions in Both Manuals for Future Reference This merchandiser conforms to the American National Standard Institute amp NSF International Health and Sanitation standard ANSI NSF 7 2003 PRINTED IN Specifications subject to REPLACES ISSUE PART IN U S A change without notice EDITION 1 06 DATE 11 07 No 9037163 REV C Tyler Refrigeration Niles Michigan 49120 NFX NFSX NCSX TYLER NFSGX NCSGX REFRIGERATION CONTENTS Page Specifications NFX NFSX NCSX NFSGX NCSGX Specification Sheets 4 Line Sizing Requirements See General UL NSF 1 5 Manual Pre Installation Responsibilities See General UL NSF 1 5 Manual Installation Procedures Carpentry Procedures 7 Case Pull Up Locations 7 1 Solid Partition 7 Plexiglas Partition 7 Trim Installation Alignment 7 Plumbing Procedures See General UL NSF 1 5 Manual Refrigeration Procedures
4. color per order 30 Color Band Ptd NFX NFSX NCSX 9023798 9023800 31 Bumper Retainer Hand Rail color per order Bumper Retainer 9025058 9025061 32 Bumper End Trim color per order 33 Glass Trim NFSGX NCSGX 9031808 9031808 34 Screw 5048626 2 5048626 2 35 Color Ptd NFSGX NCSGX 9020971 9020972 Color Band Backer NFSGX NCSGX 9025982 9025982 November 2007 Page 17 NFX NFSX NCSX NFSGX NCSGX Operational Parts List Models NFX NFSX NCSX NFSGX NCSGX Case Usage Electrical Circuit Case Size Fan Motor Fan Motor Brackets Fan Bracket Plate Fan Blades 6 21 3B 6 27 3B Opt ECM Fan Motor Opt ECM Fan Motor Brackets Opt ECM Fan Blades 6 25 1 4 3B Anti Sweat Heater Wire Hi Watt Lo Watt glass retainer NFSGX NCSGX Electric Def Heater Electric Def Term Klixon Opt Gas Def Fan Delay Klixon Opt Gas Def Term Klixon T 8 Electronic Ballast NFS G X NCS G X rear shelf T 8 Lampholder NSF Product Thermometer Domestic 115 Volt 60 Hertz 8 12 5125532 5125532 5 Watt 5 Watt 5213132 5213132 9041077 9041077 5105621 5105621 9025002 9025002 8 Watt 8 Watt 5205279 5205279 9025138 9025138 5124818 5124819 5124216 5124217 5218331 5218332 5960934 5960935 5125211 5125211 9023503 9023503 9023508 9023508 5991029 5991030 5092414 5092414 5967100 5967100 TYLER REFRIGERATION Export 220 Volt 50 Hertz 8
5. Installation amp Service Manual INSTALLATION PROCEDURES Carpentry Procedures Case Pull Up Locations The NFX NFSX NCSX NFSGX and NCSGX models have two pull ups at each end of the case Pull ups A and B are located as shown and used for joining all cases 1 Solid Partition A 1 insulated partition is required between adjacent gas defrost cases that are on different refrigeration systems 1 partitions are shipped installed as specified in the case order Make sure the partitioned case is being installed in the proper location in the case line up This assures proper refrigeration to all parts of the case line up Apply sealant to outside surface of partition where the two surfaces of the adjoining case will contact the partition See General UL NSF I amp S Manual for line up assembly instructions After all case pull ups have been secured all interior wall joint seams should be sealed with duct tape Plexiglas Partition A plexiglas plug partition is required on adja cent electric defrost cases that are on different refrigeration systems These partitions can be installed after the cases have been joined January 2006 NFX NFSX NCSX NFSGX NCSGX 1 Install partition brackets 1 at case joint on front center and or rear case wall 2 with screws 3 2 Slide plexiglas partitions 4 into partition brackets 1 Trim Installation Alignment See General UL NSF I amp S Manual for
6. bumper color band raceway and kickplate installation Refrigeration Procedures See General UL NSF I amp S Manual for general system control and superheat information Optional Dual Temperature Control The dual temperature control unit is a factory installed option This control allows the user to easily switch from medium to low tempera ture operation by flipping a switch The dual temperature control consists of an EPR valve in the suction line coming off the evaporator The EPR valve can be bypassed with a sole noid controlled bypass line around it The toggle switch opens or closes this solenoid When the solenoid is open the evaporator is connected directly to the compressor suction that allows for low temperature operation When the solenoid is closed the evaporator must operate through the EPR valve which has been preset to the desired medium temperature EXAMPLE R 404A system with 12 psig of suction pressure With the suction line sole noid open the coil pressure operates at 12 psig with a temperature of 29 F When the Page 7 NFX NFSX NCSX NFSGX NCSGX toggle switch is flipped the solenoid closes directing the flow through the EPR valve If the EPR valve is set for 48 psig the evapora tor will see a coil temperature of 12 F and will operate at a discharge air temperature of about 22 F When gas defrost is used an additional check valve is mounted around the EPR valve to allow reverse f
7. 12 5126572 5126572 5 Watt 5 Watt 5213132 5213132 9041077 9041077 5104294 5104294 5081149 5081150 5081147 5081148 5081149 5081150 5088278 5088279 5125211 5125211 9023503 9023503 9023508 9023508 9028437 9028438 5092414 5092414 5967100 5967100 For information on operational parts not listed above contact the TYLER Service Parts Department Page 18 November 2007
8. AND THE CHECK VALVE ON THE EVAPORATOR COIL TO RACK CONTROL CIRCUITS NONNOO 120VAC 60HZ 220VAC 60HZ SUPPLY NO 35019 NMONS LI NOTE ALL CASES MUST BE GROUNDED Page 12 November 2007 Installation amp Service Manual CLEANING AND SANITATION Component Removal and Installation Instructions for Cleaning Bottom Trays 1 Remove product from bottom of case 2 Grasp and lift out each of the bottom trays from the case interior and carefully remove through the door openings 3 After cleaning replace in reverse order NSF Product Thermometer Remove four screws and product thermome ter bracket assembly from right rear location in the case After cleaning replace product thermometer bracket assembly and secure with four screws Discharge Air Honeycomb 1 Remove screws and bottom retainer strip from front or rear interior of case NOTE Note position of the honeycomb grid during removal so it can be reinstalled the same way 2 Remove honeycomb grid sections from the front or rear duct CAUTION Improper installation of the honeycomb grid section could result in improper air flow and or poor refrigeration 3 After cleaning replace honeycomb grid sections as they were removed and secure with the bottom retainer strip and screws November 2007 NFX NFSX NCSX NFSGX NCSGX Rear Duct Panels 1 Remove bottom trays and discharge air honeycomb see this page 2 Rem
9. Data DEFROSTS DEFROST TYPE PER DAY DEFROST WATER LB FT DAY Lie e M M amp ECRC C 1 6 9 26 EECRC MD 1 36 5 37 45 HOTGAS FF_ 23 205 55 74 45 HOTGAS IC_ 1 um 1 6 951 HOTGAS MED 23 EE i i 495 f an Electronic Sensor is used for termination it should be set at 70 F termination temperature The sensor must be located in the same location as the defrost termination klixon for that defrost type Set EPR to give this pressure at the case NFX CROSS SECTION NFSX NCSX CROSS SECTION With Optional DSAL Superstructure With Optional DNS Superstructure p 35 8 94 25 1 4 5 1 1 4 March 2008 Page 5 NFX NFSX NCSX TYLER NFSGX NCSGX REFRIGERATION NFSGX NCSGX_CROSS SECTION 16 1 2 42 1 2 eget 25 1 4 5 41 1 4 NEX NF C SX NF C SGX_FLOOR PLAN OW 3 SPACE between the back of this case and the store wall other cases or coolers to minimize possible condensation problems FORCED VENTILATION may be necessary in some situations 1 for Insulated Partition 8 or 12 dd 1 1 2 277 ERMINE for Standard Patch End 2 Uprights for Optional__ Superstructures every 4 1 Galvanized pipe Waste Outlet 4 22 RorL 4 or 6 Page 6 March 2008
10. Lower Top Shelf Joint Trim without light NFS G X NCS G X 5182435 5182435 8 Screw NFS G X NCS G X 5205439 4 5205439 4 9 Screw NFS G X NCS G X 5205439 2 5205439 2 10 Lower Top Shelf Joint Trim with light NFS G X NCS G X 5128761 5128761 11 Screw 5145037 4 5105037 4 12 Return Air Duct Joint Trim 5203017 5203017 13 Rail Backer 9025316 9025316 14 Color Band Backer Ptd 9040223 9040223 NFX NFSX NCSX 15 Bumper Backer color per order 16 Horizontal Joint Trim 5127503 5127503 17 Cladding Retainer 9300197 4 9300197 4 Screw 5183536 8 5183536 8 18 Raceway Cover Backer color per order 19 Raceway 9300218 9300219 Screw 5183536 18 5183536 18 Kickplate Hanger 9300210 6 9300210 8 Screw 5183536 12 5183536 16 20 Raceway Cover End Trim color per order 21 Raceway Cover Retainer 9023841 4 9023841 6 22 Screw 5183536 8 5183536 12 23 Metal Kickplate Ptd 9324399 9324406 Kickplate Joint Trim Ptd 9324550 9324550 Screw BLK 9324612 6 9324612 6 24 Shoulder Screw 9025833 6 9025833 8 25 Kickplate Support Assy 3 4 26 Raceway Cover color per order 27 Shoulder Screw 9025833 18 9025833 26 28 Front Cladding Ptd 9025637 9025638 NFX NFSX NCSX Page 16 November 2007 NFX NFSX NCSX Installation amp Service Manual NFSGX NCSGX Item Description 8 12 Front Cladding NFSGX NCSGX 9036715 9036716 29 Bumper
11. 1 5 Man NSF Product Thermometer Replacement 14 Defrost Heater Replacement 14 Anti Sweat Replacement 15 Front Glass Replacement NFSGX NCSGX 15 Parts Information Cladding and Optional Trim Parts List 16 Operational Parts List 18 TYLER Warranty See General UL NSF 1 5 Manual The following Low Temperature Open Well Frozen Food and Ice Cream Merchandiser models are covered in this manual MODEL DESCRIPTION NFX NFSX 8 amp 12 OPEN WELL FROZEN FOOD MERCHANDISER NCSX 8 amp 12 OPEN WELL ICE CREAM MERCHANDISER NFSGX 8 amp 12 GLASS FRONT OPEN WELL FROZEN FOOD MERCHANDISER NCSGX 8 amp 12 GLASS FRONT OPEN WELL ICE CREAM MERCHANDISER November 2007 Page 3 NFX NFSX NCSX TYLER NFSGX NCSGX REFRIGERATION SPECIFICATIONS NFX NFSX NCSX NFSGX NCSGX Open Well FF amp IC Merchandisers Refrigeration Data CAPACITY IFT DISCHARGE AIR AVG REF CASE EVAPORATOR NUM CHARGE 0 peu VELOCITY MODEL j LENGTH PARALLEL FR FPM er E ea merge NCSX 8 12 Icecream 390 40 5 25 200 028 NFX NFSX 812 MeEDTEMP 314 322 5 13 42 200 0 28 NFSGX 8 12 FROZENFOOD 366 987 25 28 15 200 028
12. 8 NrSX NA 125 1500 220 2640 NA NA NA NA 69 1435 NCSX NA NA 125 1500 220 2640 NA NA NA NA 138 2870 NA NA 125 1500 220 2640 094 1130 066 790 69 1435 NcscX NA NA 125 1500 220 2640 O94 1130 0 66 790 138 2870 126 1520 NA NA NA NA NA NA NA NA 103 2 142 NFSX 12 NA 170 2060 295 3580 NA NA NA 103 2 142 Ncsx 12 NA NA 170 2060 295 3580 NA NA NA NA 206 4285 12 NA NA 170 2060 295 3580 125 1500 155 1860 103 2142 Ncsax 12 NA 170 2060 295 3580 125 1500 155 1860 206 4 285 CASE CIRCUITS In addition to the 208V defrost circuit there is the 120V case fan circuit plus the 120V case anti sweat heater circuit Shelf or canopy lights require a separate 120V circuit which can be switched at the back room for convenience in controlling the lights UL SANITATION approved in accordance with ANSI NSF 7 CASE BTUH REQUIREMENTS are calculated to produce approximately the indicated entering air temperature with absolute maximum operating ambient limits of 75 F amp 55RH The information contained herein is based on technical analysis and or tests performed in a controlled lab environment that are consistent with industry practices and is intended a
13. ING BLUE 3 LAMP BLUE BALLAST BLK LAMP AP P9 BLUE 5 RED siis SECOND SHELF ANTI SWEAT HEATER 9 15 REQUIRED ON NON LIGHTED SHELF 8 CASE 5124216 WHAM 12 CASE 5124217 OPTIONAL SHELF ANTI SWEAT HEATER WAMMAWAMMWMMW LL IE 8 CASE 5124818 SS 12 CASE 5124819 SHELF WIRING REAR RISER NOSE ANTI SWEAT HEATER WWW EC 8 5124818 12 5124819 45 N 9 Br 3 xz LEFT END HEATED 5129895 95 9 55 GLASS PANEL oN amp Tf of N Fw B k 2 lt Tr as zl Ii 55 O RIGHT END HEATED GLASS PANEL 5129895 5 m GLASS RETAINER HEATER 8 CASE 5218331 a ECE 12 52183352 D ANTI SWEAT HEATER CONNECT ONS Em amNY Ey SA EQ XQ DEFROST HEATER 57777 DEFROST LIMIT THERMOSTAT OPENS 50 F CLOSES 30 F 1 71 777 SECOND DEFROST HEATER IS TT STANDARD IN NCSGX CASES 8 5 5199414 12 CASE 5199415 SOLENOID i VALVE L 2 P s B ole FAN PANEL L L 8 8 FAN MOTORS 3 PER 12FT 2 PER 8FT CASES FANS POWER SUPPLY OPTIONAL CASE TEMPERATURE THERMOSTAT 208 60HZ 120VAC 60HZ SUPPLY SUPPLY OR OR 220VAC 50 2 220VAC 50HZ INTERNAT I ONAL INTERNAT I ONAL NOTE ALL CASES MUST BE GROUNDED November 2007
14. M WRG HG DFR DT NFN G X NFW G X 8 amp 12FT CASES d NONE pi REAR RISER NOSE 8 cw ANTI SWEAT HEATER El 150 96 CK 55 194 V V V L 1 1 1 REAR RISER ANTI SWEAT HEATER CONNECTIONS 8 iva ako 138 HR EM IMP ae M WITH SILICONE CAULK 58 g fel 5129895 95302008 52 LEFT END HEATED e GLASS PANEL X Exe n 8 PEN 9 m M RIGHT END HEATED MAMMA EL E E bd GLASS PANEL TRO T 4 I 8 1 5 i DUAL TEMPERATURE ANT SWEAT KL1XON OPENS 10 F CLOSES O F GLASS RETAINER ASWT HEATER up m HARNESS 5210941 USED ON NON GLASS CASES DESCRIPTION DUAL TEMPERATURE SWITCH LOW FAN DELAY THERMOSTAT TEMP OPENS 50 F CLOSES 40 F LU B CASES 5199414 12 CASES 5199415 DUAL TEMP SOLENOID VALUROI 2 FAN MOTORS 3 PER 12FT 2 PER 8FT CASES FAN PANEL GROUND FILL THE UNUSED CONNECTOR WITH SILICON CAULK n a CASE ea ae I ee ea LL 4 OPTIONAL HOT GAS DEFROST TERMINATION KLIXON a OPENS 55 F CLOSES 40 F CLOSES 55 F OPENS 40 F 5199320 THE KLIXON 15 MOUNTED ON THE PIPE BETWEEN THE DISTRUBITOR
15. MED 1 36 50 F Gas FF 2 3 20 25 55 F Gas IC 1 25 30 55 F Gas MED 2 3 16 20 55 F Most klixons are located on the end of the evaporator coil Klixon uses are as follows Electric Defrost Termination Electric Defrost Failsafe Opt Gas Defrost Fan Delay Dual Temp and Glass Anti Sweat Dual Temp NOTE The defrost termination klixon for gas defrost is located at the bypass check valve CAUTION If electronic sensors are used in place of the klixons the sensors must be located in the same location as the klixons for that defrost type Any other locations will effect the refrigeration efficiency of the case WIRING DIAGRAMS ELECTRICIAN NOTE OVERCURRENT PROTECTION 120V circuits should be protected by 15 or 20 Amp devices per the requirements noted on the cabinet nameplate or the National Electrical Code Canadian Electrical Code Part 1 Section 28 208V defrost circuits employ No 12 AWG field wire leads for field connections On remote cases intended for end to end line ups bonding for ground may rely upon the pull up bolts The following wiring diagrams on pages 9 thru 11 will cover the NFX NFSX NCSX NFSGX NCSGxX case circuits and dual temp circuits with electric and hot gas defrost options November 2007 NFX NFSX NCSX NFSGX NCSGX Domestic amp Export 50 Hz Case Circuits NOTE 3 LAMPS FOR 12FT CASES ARE SHOWN 2 LAMPS AND A TWO LAMP BALLAST ARE USED IN 8FT CASES UMAR OPTIONAL T8 CANOPY LIGHT
16. NCSGX 8712 Icecream 48 40 55 8 25 200 028 NFSGX 8 12 367 376 d 13 22 2004 0 28 For sizing all refrigeration equipment other than TYLER use conventional BTUH values Evaporator temperature is based on the saturated pressure leaving the case Air velocity measured 1 hour after defrost at the discharge air duct using an ALNOR JR velometer with a scoop This is an average refrigeration charge per foot based on R22 and R404A refrigerant usage FOR SPECIFIC COMPRESSOR SIZING INFORMATION REFER TO TYLER APPLICATIONS FOR RACK SYSTEM COMPRESSORS AND OR THE COMPRESSOR MANUFACTURERS FOR SINGLE COMPRESSORS FOR LINE SIZING INFORMATION REFER TO THE MISCELLANEOUS SECTION BUFF IN THE TYLER SPECIFICATION GUIDE Electrical Data Fans and T 8 Lighting with Electronic Ballasts 120 Volt pes STDFANS TOTALECMFANS TOTAL T 8 LIGHTING PER REAR SHELF LIGHT OPT SUPRSTR LIGHT Lemomu case amps aues wars 22 NOTE Optional shelving superstructures with lights have same electrical requirements row of lights as shown in this chart A separate electrical supply for superstructure lights must be provided since there is no plug in from the superstructure to the case Heaters 120 and 208 Volt 120 120 208 CASE EA EE a mara re 8 095 1140 NA NA NA NA NA NA NA NA 69 14
17. NFX NFSX NCSX NFSGX NCSGX Front Glass Replacement NFSGX NCSGX 1 Unplug or disconnect heated glass panels and glass retainer anti sweat wires 1 2 Remove two screws 2 and glass joint trim 3 from both joints of the broken glass 4 3 Remove screws 5 and glass trim rail 6 from top of glass 4 4 Loosen rear retainer 7 and remove broken glass 4 from glass retainer assembly 8 NOTE Inspect the anti sweat wire in glass retainer assembly If wire is damaged or broken replace it before replacing the front glass 5 Apply sealant tape to top and bottom edge of new glass 4 6 Position new glass 4 in glass retainer assembly 8 and secure by tightening rear retainer 7 7 Install glass trim rail 7 with screws 6 over top edge of new glass 4 8 Install glass joint trim 3 with two screws 2 over the joint areas of glass 4 9 Reconnect heated glass panels and glass retainer anti sweat wires 1 Page 15 NFX NFSX NCSX NFSGX NCSGX TYLER REFRIGERATION PARTS INFORMATION Cladding and Optional Trim Parts List NFX NFSX NCSX NFSGX and NCSGX Item Description 8 12 1 Screw NFX 5205439 4 5205439 4 2 Lower Rear Riser Joint Trim NFX 5182434 5182434 3 Top Rear Riser Joint Trim NFX 5629361 5629361 4 Screw NFX 5058099 4 5058099 4 5 Screw NFS G X NCS G X 5058099 4 5058099 4 6 Shelf Joint Trim 5629360 5629360 NFS G X NCS G X 7
18. T BE GROUNDED WRG HG DFR FX NFS G X NCS G X USED ON NON GLASS CASES C3 E HARNESS 5210941 1S REMOVED THE STUB HARNESS 120VAC 60HZ SUPPLY OR 220VAC 50 2 INTERNAT ONAL November 2007 9028667 BF m Dual Temperature Control Circuits C gt la OPTIONAL SUPERSTRUCTURE LIGHTING POWER HARNESS CONNECTION SEE INSTALLATION MANUAL FOR SUPER STRUCTURE WIRING NON LIGHTED SHELF SECOND ANTICSMEAT WARM HEATER REQUIRED ON GPIIOMAE SHELE ANTI SWEAT HEATER a lun i z Qc gt lt ze zw lt 2 cu Oz em BH 9039740 B amp T2FT CASES REAR NOSE WIMMIMMIMMMMMI LITE ANTI SWEAT HEATER REAR RISER ANTI SWEAT HEATER CONNECT 5 E WK 1 V B 79 5 z 5 22 i EERE 1 TE BENI FILL UNUSED CONNECTORS WITH SILIGONE CAULK L 5129895 9302008 s LEFT HEATED n 5 GLASS PANEL i 8 V n N v RIGHT END HEATED MW E ENS 1 y GLASS PANEL 298 1 aS 5 4 7o 0 8 2 Er E 1 25 E m DUAL TEMPERATURE ine t ANTI SWEAT KLIXON na 91 1215 OPENS 10 F CLOSES O F n 1 2 t 2 8 8 A 0 1918 08 8 2I2 5 5 GLASS RETAINER ASWT HEATER iu zo Slzlol m ls m io 8 nm
19. X s ANTI SWEAT HEATER CONNECTIONS FOR GLASS FRONT CASES 5 1 o 2121018 2 a he NCBX 1 1 1 1 J 1 1 DUAL TEMP SWITCH i V V L 1 1 1 G 8 CASES 5199414 12 CASES 5199415 FAN MOTORS 3 PER 12FT 2 PER 8FT CASES DUAL TEMP SOLENOID N o E o Em a lt o a lt 9023586 DEFROST HEATER DEFROST LIMIT THERMOSTAT OPENS 50 F CLOSES 30 F FAN PANEL GROUND FILL THE UNUSED CONNECTOR WITH SILICON CAULK SSS SS CASE WALL 1 9 4 a aa 2 2 bee ee T 2 D eo x o FIELD N N WHT Bu WHT E8 208 220VAC 60HZ SUPPLY 120A 60HZ 220VAC SUPPLY NOTE ALL CASES MUST BE GROUNDED November 2007 Page 11 F 5 OPTIONAL SUPERSTRUCTURE LIGHTING POWER HARNESS CONNECTION SEE INSTALLATION MANUAL FOR SUPER STRUCTURE WIRING uua SECOND ANTI SWEAT WT HEATER REQUIRED ON NON LIGHTED SHELF PERMISSION DRAWING ING USE ONLY INCHES UNLESS 9028671 WANNA EE ANTI SWEAT HEATER DIAGRA
20. ar of case with four screws 1 Defrost Heater Replacement WARNING Always shut off electricity to case before replacing a defrost heater Automatic cycling of fans or electrical power to wire ends could cause personal injury and or death Page 14 TYLER REFRIGERATION 1 Remove bottom trays from case 2 Unclip and lift up fan plenum 1 3 Disconnect defective defrost heater 2 and remove from mounting clips 3 and case 4 Install new defrost heater 4 in reverse order 5 Restore electrical power to case Anti Sweat Replacement WARNING Shut off or disconnect power supply to case before changing an anti sweat Electrical power from wire ends could damage other components and or cause personal injury or death November 2007 Installation amp Service Manual Discharge Air Grid Anti Sweat NFX Only 4 1 34 1 Remove screws rear guard trim 1 from top of rear case wall 2 2 Disconnect or cut the defective anti sweat wire 3 from the case wires 3 Remove and replace the aluminum tape 4 and defective anti sweat wire 3 from top of rail and wire trim assembly 5 4 Reconnect anti sweat wires to case wires Reinstall rear guard trim 1 and secure with screws Canopy Anti Sweat Locations NFSX NCSX NFSGX NCSGX us Night Cover Shelf with Light HiWatt Night Cover Shelf without Light Lo Watt HiWatt HiWatt November 2007
21. low for the defrosting gas A fan delay is also connected with gas defrost to cycle the fans off but only during the medium temperature mode Electrical Procedures Electrical Considerations CAUTION Make sure all electrical connections are tight This prevents burning of electrical terminals and or premature component failure NOTE The raceway houses the electrical wiring and components for the case All raceway covers will be shipped loose Case Fan Circuit This circuit is to be supplied by an uninter rupted protected 120V circuit The case fan circuit is not cycled except when equipped for gas defrost On gas defrost cases the fan circuit is controlled by a 50 40 klixon when used for medium temperatures NOTE With gas defrost the fans will not start until the coil temperature reaches 40 F at the fan delay klixon Anti Sweat Circuit All cases have at least one anti sweat heater in each discharge air grid and return air grid Cases with front glass have an additional anti sweat heater under the glass retainer Anti sweat heaters are wired directly to the main power supply so they can operate at all times Page 8 TYLER REFRIGERATION Defrost Information See General UL NSF I amp S Manual for operational descriptions for each type of defrost control Defrost Control Chart NFX NFS G X NCS G X Defrost Defrost Defrosts Duration Term Type Per Day Min Temp Electric FF 1 60 50 F Elec IC
22. ove mounting screws from rear duct panel 3 After cleaning replace in reverse order Front Air Duct Panels 1 Remove bottom trays see this page 2 Remove screws and front air duct panels from case 3 After cleaning replace in reverse order Rear Riser Canopy Cover NFSX NCSX NFSGX NCSGX 1 Remove screws and rear riser joint trim 2 Remove screws price tag molding and rear riser canopy cover from top of case 3 After cleaning replace rear riser canopy cover and remaining components in reverse order Front Cladding 1 Remove front kickplate and raceway cover 2 Remove screws from bottom and top of front cladding and pull cladding down to remove it from behind the bottom edge of the bumper retainer 3 After cleaning replace front cladding and remaining front components in reverse order Page 13 NFX NFSX NCSX NFSGX NCSGX SERVICE INSTRUCTIONS See General UL NSF I amp S Manual for fan blade and motor replacement color band and bumper replacement and raceway cover removal instructions NSF Product Thermometer Replacement EAE 1 Remove four screws 1 and thermometer bracket 2 from rear of case 2 Remove two screws nuts washers and the product thermometer 3 from the thermometer bracket 2 3 Install and secure a new product ther mometer 3 on the thermometer bracket 2 with two screws washers and nuts 4 Install thermometer bracket 2 on re
23. s a reference for system sizing and configuration purposes only and for use by persons having technical skill at their own discretion and risk Conditions of use are outside of Tyler s control and we do not assume and hereby disclaim any liability for results obtained or damages incurred through application of or reliance on the data presented including but not limited to specific energy consumption with any particular model or installed application SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE Page 4 March 2008 NFX NFSX NCSX Installation amp Service Manual NFSGX NCSGX 208 VOLT DEFROST AMPS Fr e 12 te 20 24 28 32 36 40 44 44 s52 56 60 69 10 3 13 8 17 2 20 6 24 1 27 5 30 9 34 3 37 8 41 2 44 6 N A 1 PH TG 30 TG 30 TG 30 TG 30 TG 30 TG 40 TG 40 TG 40 TG 50 TG 50 TG 50 TG 50 FF MED N A 12 0 15 0 18 0 15 0 18 0 18 0 21 0 25 0 28 0 30 0 33 0 36 0 3 PH TG 3 30 TG 3 30 TG 3 30 TG 3 30 TG 3 30 TG 3 30 TG 3 30 TG 3 40 TG 3 40 TG 3 40 TG 3 50 TG 3 50 13 8 27 6 41 2 Separate circuit due to high amp draw 1 PH TG 30 16 TG 40 Tae TG 50 Ba e om e pae e e BB 3 PH TG 3 30 TG 3 40 TG 3 50 TG 3 40 TG 3 50 TG 3 50 TG 3 50 TG 3 50 50 TG 3 50 50 TG 3 50 50 TG 3 50 50 TG 3 50 50 R22 5 8 76 78 ze ve ze 1ve 11 8 118 vus 117 13 8 138 DURATION vano 2 Defrost
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