Installation & Service Manual
Contents
1. 24 Return Air Ducts Panels 24 Corner Trim 24 FOM OCIJOdINO PP aya 24 Page 2 March 2008 NFJCX NCJCX NTJCX Installation amp Service Manual NFJECX NCJECX Page Service Instructions Preventive Maintenance See General UL NSF 185 Manual NSF Product Thermometer Replacement 25 Corner Trim Replacement 25 Defrost Heater 25 Drain Pan Heater Replacement 26 Fan Blade and Motor Replacement See Gen UL NSF 185 Manual Anti Sweat Replacement 26 Center Riser Discharge Air Anti Sweat 26 Discharge Air Anti Sweat NFJECX NCJECX 26 Return Air Duct Anti Sweat NFJCX NCJCX NTJCX 27 Return Air Duct Anti Sweat NFJECX NCJECX 27 Color Band and Bumper Replacement See Gen UL NSF 185 Man Parts Information Cladding and Trim Parts 1515 28 Operational Parts List 32 TYLER Warranty See General UL NSF 185 Manual The following Low Temperature Frozen Food and or Ice Cream Medium Temperature and Dual Temperature Split Coil Merchandiser models are covered in this manual MODEL DES2. WIWIWWWWww E DEFROST HEATER Il LJ 3 PER 12 CASE W E 2 B CASE o5 WIWWWww L EL REAR RETURN AIR ANTI SWEAT HEATER CENTER RISER ANTI SWEAT HEATER REAR n F Vh U OPTIONAL SUPER STRUCTURE LIGHTING rfi CENTER RISER ANTI SWEAT HEATER FRONT Gr WWW e Geuri e e s o p a A Sie e i a e i e o o A o DRAIN PAN HEATER WIWWwwww L DK 5199436 O n FAN PANEL TT GROUND 9 208VAC 60HZ SUPPL Y 120VAC 2 220 50HZ OR INTERNAT IONAL 220VAC INTERNAT ONAL BE GROUNDED 252027 c LL ul ho C x O Q NFJCX NCJCX 8 amp 12FT f lt S 5 32045 RELEASE DATE PAT ADDED ASWETS 7 2216 cc SA DESCRIPTION DECIMALS 13 28 um DRAIN PAN HEATER DP HEATER CONTROL KLIXON OPENS 3O F CLOSES 50 F SFY DP HEATER FAIL SAFE KLIXON OPENS 70 F CLOSES 40 F r FAN MOTORS 3 PER 12 CASE E PER B CA 2 PER B CASE M E
3. nn eee DRAIN PAN HEATER E DEFROST TERM KL I XON OPEN SO F CLOSE 30 F AWWA kE 9039734 O Lu CN oe gt lt C gt OO gt u lt 2 14 O lt o l OQ DEFROST HEATER i Ej g m FAN MOTORS 3 PER 12 CASE HO 123 2 PER 8 5 e 5199436 SOLENOID VALVE rese owe jox DUAL TEMP SWITCH MAMMA r RETURN AIR ANTI SWEAT HEATER REAR 030 ANGES 1 c o B C _ 5 i WWW 7 CENTER RISER ANTI SWEAT HEATER REAR x 5 9 C 2 PET CENTER RISER ANTI SWEAT HEATER FRONT WAT RETURN AIR ANTI SWEAT HEATER FRONT jWwiwwwwc L L i 5212544 DUAL TEMP SWITCH COTL LOCAT ION d WHITE 9 SOLENOID VALVE lt CH FAN MOTORS B P 1 a T n 5 u m n a ee ee DEFROST HEATER rH WWW k 8 DEFROST TERM KL I XON i t OPEN 50 F CLOSE 30 F PR PANEL 5 zi WA GROUND 1 DRAIN HEATER L MALL ee care ER n alo 2 m m 208VAC 60HZ GRN SUPPLY OR 120VAC 60HZ 220VAC 50HZ 2 SUPPLY INTERNAT ONAL OR 220VAC 50HZ INTERNAT I ONAL NOTE ALL CASES MUST BE GROUNDED Page 20 March 2008
4. 9 Bottom Irays 9 Plumbing Procedures See General UL NSF 185 Manual Refrigeration Procedures 10 Optional Dual Temperature Control 10 Electrical Procedures 11 Electrical Considerations 11 Defrost Information 11 Defrost Control Chart 11 Defrost Schedules 12 Installation Procedure Check Lists See Gen UL NSF I amp S Manual Wiring Diagrams 12 NFJCX NCJCX Domestic amp Export 50Hz Case Circuits 13 NTJCX Domestic amp Export BOHz Case Circuits 15 NFJECX NCJECX Dom amp Exp 50Hz End Case Circuits 17 NTJCX Dual Temp Control Circuits 18 NFJCX NCJCX Dual Temp Control Circuits 20 NFJECX Dual Temp Control Circuits 22 Optional Superstructure Wiring Circuit 23 Cleaning and Sanitation See General UL NSF 185 Manual Component Removal and Installation Instructions for Cleaning 24 Bottom Screens and Trays 24 NSF Product Thermometer 24 Discharge Air Honeycomb 24 Discharge Air Duct Panels
5. t ARM P HR RIS e RR MES 27 9 N a gt a NR Ip eom CENTER RISER ANTI SWEAT HEATER FRONT sn a a Qu EI FRONT RETURN AIR ANTI SWEAT HEATER Tgn WIWWWW ELI PE gt x lt _ O FAN MOTORS u 3 PER 12 CASE ret al 2 PER 8 n E 20 zo I ONAL SOLENOID VALVE LLL PASE WALL o uj 3 w j OPTIONAL HOT GAS DEFROST 2 mnm TERMINATION KLIXON og FANS t OPENS 55 F CLOSES 40 F POWER SUPPLY Q OR CLOSES 55 F OPENS 40 F E ONAL TRIS THE KLIXON 15 MOUNTED ON THE PIPE BETWEEN 9 THE DISTRUBITOR AND OR i 120 60HZ THE CHECK VALVE ON 2 220VAC 50HZ i ca EET TO RACK INTERNAT ONAL NOTE ALL CASES MUST BE GROUNDED OPTIONAL HOT GAS DEFROST TERMINATION KLIXON A OPENS 55 F CLOSES 40 F OR CLOSES 55 F OPENS 40 F fo OPT I ONAL THE KLIXON IS MOUNTED TEMPERATURE ON THE PIPE BETWEEN THERMOSTAT THE DISTRUBITOR AND THE CHECK VALVE ON THE EVAPORATOR COIL 3618 NO 35015 NMOMB NS POWER SUPPLY DRAIN PAN HEATER 5224112 DP HEATER CONTROL KLIXON OPENS 3O F CLOSES 50 F DP HEATER FAIL SAFE KLIXON OPENS 70 F CLOSES 40 F Page 16 FAN PANEL GROUND 881 2F T 9039580 D 9 O Qc lt cc
6. OPTIONAL HOT GAS DEFROST 2 TERMINATION KLIXON OPENS 55 F CLOSES 40 F OR CLOSES 55 F OPENS 40 F THE KLIXON IS MOUNTED ON THE PIPE BETWEEN THE DISTRUBITOR AND THE CHECK VALVE ON THE EVAPORATOR COIL TO RACK DRAIN PAN HEATER CONTROL KLIXON CONTROL CIRCUITS OPENS 3O F CLOSES 50 F DRAIN PAN HEATER DRAIN PAN HEATER FAIL SAFE KLIXON OPENS 70 F CLOSES 40 F BLK FAN MOTORS OPTIONAL FAN DELAY 3 PER 12 CASE KL IXON 2 PER 8 CASE OPENS 50 F CLOSES 40 F RED RED BROWN 10 BLUE o MEDTEMP BLACK OPT ONAL Enon Z SOLENOID VAENE ONLY NCJCX CAN OPTIONAL DUAL g DT BETWEEN FROZEN TEMPERATURE SWITCH o AND FOR REAR COIL LJ 2 x lt REAR RETURN AIR ANTI SWEAT HEATER WWWWWWw ET ME 59 i H 2 xu a CENTER RISER REAR ANTI SWEAT HEATER WWWWWWw EL is 2 LJ CENTER RISER pima CENTER RISER FRONT ANTI SWEAT HEATER EL P lt 552 SSS FRONT RETURN AIR ANTI SWEAT HEATER WAWWWWWWWW EL LJ o ur Z e 10 6o OPTIONAL DUAL SWITCH HARNESS CONNECTION SHOWN n lt n SA vote ROUEN TEMPERATURE SWITCH IS FOR RUNNING CASE DUAL TEMP usus EE FOR FRONT COIL FRONT AND REAR ONE SWITCH FRONT amp aq AND ICE CREAME COIL ONE SWITCH REAR COIL IXZ ONAL i lt lt SOLENOID s 55 8 VALVE LOW TEMP
7. st CENTER RISER ANT SWEAT HEATER FRONT m FRONT RETURN AIR ANTI SWEAT HEATER E FAN MOTORS 3 PER 12 CASE Ql 2 PER 8 CASE ES rT 2 in D poe u OPT ONAL SOLENOID DEFROST HEATER a ails E DEFROST LIMIT SWITCH OPEN 50 F CLOSE 30 F DRAIN PAN HEATER SENA NIIS ON DU eee UAM IUE LJ Ey D IONAL TO FANS TEMPERATURE l THERMOSTAT POWER SUPPLY 1 120VAC 60 7 SUPPLY 220VAC 50 7 208VAC 60HZ INTERNAT 1 ONAL SUPPLY OR 220VAC 50HZ NOTE ALL CASES MUST BE GROUNDED INTERNATIONAL March 2008 Page 15 TO RACK 3 CONTROL CIRCUITS g F l cime A E a gt AIN 2 DRAI N HEATER SOLENO ID VALVE DP HEATER FAIL SAFE KLIXON OPENS 70 F CLOSES 40 F DP HEATER CONTROL KLIXON Z OPENS 30 F CLOSES 50 F FAN MOTORS Ou 3 PER 12 CASE 2 PER 8 CASE D in cul Sro gt lt _1 ZY Ju WW W Www EL a gt uJ O __ mE REAR RETURN AIR ANTI SWEAT HEATER lt 222 Wan 4 532 2 255 lt pet lt lt N c CENTER RISER ANTI SWEAT HEATER REAR a z o a u H z gt x Cr z ar 5 m o OPTIONAL SUPER STRUCTURE LIGHTING 5 5 z lt d 5 i x lt E A OPTIONAL SUPER STRUCTURE HEATERS Fae
8. ICE CREAM BLACK m Backs BLUE OPTIONAL FAN DELAY KLIXON OPENS 50 F CLOSES 40 F FAN MOTORS 3 PER 12 CASE 2 PER B CASE DRAIN PAN HEATER DP HEATER CONTROL KLIXON OPENS 30 F CLOSES 50 F DP HEATER FAIL SAFE KLIXON OPENS 70 F CLOSES 40 F OPTIONAL HOT GAS DEFROST TERMINATION KLIXON amp gt OPENS 55 F CLOSES 40 F o OR CLOSES 55 F OPENS 40 F ON THE PIPE BETWEEN THE DISTRUBITOR AND THE CHECK VALVE ON THE EVAPORATOR COIL TO RACK CONTROL CIRCUITS THE KLIXON IS MOUNTED FIELD LUG SUPPLY OR INTERNATIONAL 220VAC SOHZ INTERNAT ONAL GND 120VAC 60HZ 120VAC 60HZ SUPPLY HEE OR 220VAC 50HZ 22JAN07 NUM DOW 45200 z 41 lt i x lt 6 o z amp lt als x ala lt x 02 lt 2 lt IAGRAM WRG DT HG FJCX NCJCX 8 amp 12FT 9059741 N E 08 3 g jk DATE RELEASE DESCRIPTION March 2008 Page 21 NFJECX Dual Temperature Control Circuits DISCHARGE AIR ANTI SWEAT HEATER gt ree em Lu RIGHT GLASS HEATER H 4 NES L 5 Q FRONT GLASS HEATER LL A E 4 d LEFT GLASS HEATER WWWWWWWEF F ES E 8 ES DUAL TEMPERATURE GLASS HEAT CONTROL KLIXON iz gt OPENS 10 F CLOSES 0 s lt C P N 9310711 HM p RIGH
9. TJCX D N M o RELEASE 030 ANGLES ADDED A 70 40 FAIL SAFE KLIXON FOR THE DRAIN DESCRIPTION PAN HEATER DECIMALS xi 2008 NFJECX NCJECX Domestic amp Export 50 Hz Case Circuits EFRIGERAT HN DISCHARGE AIR ANTI SWEAT HEATER WWW INLE RETURN AIR ANTI SWEAT HEATER WWIWWWWW EL PERMISSION 2 8 un eig 8 2 AA FAN MOTORS 22555 RIMIS DE eX 694 AME 5 Ue E ssh P op Se ougtie 2 828555 E TENE lt 3 525 DELAY KLIXON USED ON MEDIUM TEMP CASES OPENS 50 F CLOSES 40 F FAN DELAY CONNECT t ON 5224112 ONAL SOLENOID VALVE ML a og 2 j FANS oc POWER SUPPLY 3 OPTIONAL HOT GAS DEFROST amp OPTIONAL FIELD TERMINATION KL IXON c TEMPERATURE GND 2 OPENS 55 F CLOSES 40 F m THERMOSTAT wd OPENS 40 F CLOSES 55 F la i z 120VAC 60 2 THE KLIXON 15 MOUNTED SUPPLY Z ON THE PIPE BETWEEN 2 6 OR jura MN INTERNAT THE EVAPORATOR COIL RE TO RACK CONTROL CIRCUITS HOT GAS DEFROST DISCHARGE AIR ANTI SWEAT HEATERWWWWWWW E RETURN AIR ANTI SWEAT HEATER WWW DEFROST HEATER DEFROST LIMIT KLIXON SOLENOID OPEN 50 F CLOSE 30 F GP FAN PANEL VALVE siwa qp pem cmm mm cmm ci ncm
10. NFJCX NCJCX NTJCX NFJECX NCJECX Item Description 1 Bumper Retainer 2 Bumper Retainer Hand Rail Backer 3 Color Band Painted 4 Color Band Backer Ptd 5 Bumper End Trim 6 Bumper Backer 7 Bumper 8 Front Cladding Ptd 9 Raceway Cover Backer 10 Raceway Cover End Trim 11 Raceway Cover 12 Kickplate Ptd Screw per kickplate 19 Screw per retainer 14 Raceway Cover Retainer per side 15 Kickplate Support Assy per side Shoulder Screw 16 Screw per side 17 Raceway Support 18 Screw per support 19 Screw 20 Raceway 21 Cladding Retainer per side 22 Screw per retainer 23 Shoulder Screw per side NFJECX NCJECX Front Side color per order 9025316 9025316 9023795 9023789 9040223 9040223 color per order color per order color per order 9025642 9025640 color per order color per order color per order 9329436 9329437 2 9324612 4 9324612 2 5183536 2 5183536 2 9023841 3 9023841 2 9043402 2 9323069 2 9025833 8 9025833 4 5183536 6 5183536 4 9041465 4 9041465 2 5183536 2 5183536 2 5120943 10 5120943 8 5205386 5203747 2 9300197 3 9300197 2 5183536 5183536 9025833 6 9025833 3 Corner Trim Parts List Item Description Raceway Corner Trim Kickplate Corner Trim Ptd 1 Upper Corner Trim bumper 2 Screw 3 Corner Cladding Trim 4 Screw 5 Screw 6 7 color order 9025833 2 9041336 5048626 4 9025833 2 color
11. TG 3 40 40 40 TG 3 40 40 40 TG 3 50 50 50 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 f 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 as 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 NFJCX NCJCX NTJCX Installation amp Service Manual NFJECX NCJECX CASE TO CASE SUCTION LINE SUB FEED BRANCH LINE SIZING reer 2 we 29 32 3 4 4 S k s 1 1 8 1 1 8 11 8 1 31 8 13 8 1 3 8 1 3 8 1 5 8 1 5 8 1 5 8 15 8 1 1 8 1 1 8 1 1 8 1 1 8 1 3 8 1 3 8 1 3 8 1 3 8 Defrost Data EPR EPR SETTINGS EPR SETTINGS DEFROSTS DURATION TERMINATION R404A DEFROST WATER DEFROST TYPE
12. 12 5644521 5 Watt 5213132 9041077 9313752 9313764 2 Watt 5213132 9313765 9313416 0124217 9313430 9313262 9036670 9303208 9023508 5246348 9313384 9313437 9313348 5627909 5217544 5967100 End Case 5644521 5 Watt 5213132 9041077 5105621 9313764 2 Watt 5213132 9313765 5080970 5028893 9313164 9036670 9303208 5102019 5217544 5967100 g 5126572 5 Watt 5213532 9041077 5104294 5081149 5081147 9313431 9313263 9036670 9303208 9023508 5246348 5627909 5217544 TYLER REFRIGERATION Export 220 Volt 50 Hertz 12 End Case 5126572 5126572 5 Watt 5 Watt 5213532 5213532 9041077 9041077 5104294 5104294 5081150 5081201 5081148 5081271 9313430 9313262 9313164 9036670 9036670 9303208 9303208 9023508 5246348 5102019 5627909 5217544 5217544 5967100 5967100 5967100 For information on operational parts not listed above contact the TYLER Service Parts Department Page 32 March 2008
13. Use one dual temp control when both wells are controlled together Use two separate dual temp controls when you want to control the front and rear wells separately on one compressor NTJCX These models have the front and rear coils piped separately This case is designed to run off separate compressor systems and operate in dual temp applications In addition this version has an insulated center partition to aid in maintaining the temperature differences between the two sides Both sides must defrost at the same time TYPICAL USAGES 1 Frozen food on one side and ice cream on the other side 2 Frozen food on one side and medium temp on the other side 3 Frozen food on one side and dual temp on the other side NOTE Dual temp refers to frozen food or medium temp operation by use of a dual temp control Dual temp also requires an expansion valve sized for the coldest dual temp operation 4 Dual temp on both sides NOTE This requires two dual temp controls to control both the front and rear wells on their respective compressor systems NON TYPICAL USAGES 5 Frozen food on both sides 6 Ice cream on both sides 7 Medium temp on both sides No dual temp control is needed but you must specify the proper expansion valve and size each compressor system accordingly DEFROST WIRING There are two defrost heater circuits in each case The heater wiring stubs out in the 208V raceway as two pairs of wires Defrost circuits can therefore be wire
14. 860 224 466 5 00 600 NCJCXNTJCX 8 192 2304 060 720 3 80 456 0 2164 4 500 2 88 600 5 00 600 NFJCX 12 254 3048 0 90 108 0 5 20 3240 20 60 4 290 336 700 7 50 900 NCJCXNTJCX 12 254 3048 0 90 108 0 5 20 3240 34 62 7 200 4 33 900 7 50 900 NFJECX NCJECX 77 1 2 0 40 480 0 60 720 130 1560 781 1624 NA N A N A CASE CIRCUITS In addition to 208V defrost circuit there is the 120V case fan circuit plus the 120V case anti sweat circuit Cases with Gas Defrost have a separate 120V circuit for the drain pan heater Shelf or canopy lights require a separate 120V circuit which can be switched at the back room for convenience in controlling the lights 208 VOLT DEFROST AMPS FEET 8 12 16 20 24 2 32 0 4 FF MED 16 0 24 0 32 0 40 0 Separate circuit recommended due to high amp draw 1 PH TG 30 TG 30 TG 40 TG 50 N A FF MED 12 1 20 7 18 6 18 2 31 1 32 8 37 0 15 6 15 6 15 6 24 2 26 8 26 8 31 0 31 0 32 0 32 0 3 PH TG 3 30 TG 3 30 TG 3 30 TG 3 30 TG 3 40 TG 3 40 TG 3 50 TG 3 30 30 TG 3 30 30 TG 3 40 40 TG 3 40 40 TG 3 40 40 IC 24 5 38 9 Separate circuit recommended due to high amp draw 1 PH TG 30 TG 50 N A IC 21 0 34 0 32 0 38 0 34 34 28 28 34 34 34 34 38 38 34 34 34 34 34 34 38 38 38 3 PH TG 3 30 TG 3 40 TG 3 40 TG 3 50 TG 3 40 40 TG 3 40 40 TG 3 40 40 TG 3 40 40 TG 3 50 50
15. PER 8 CASE 5199456 1 DEG o Toe CENTER RISER ANTI SWEAT HEATER FRONT SOLENO D VALVE RETURN AIR ANTI SWEAT CENTER RISER ANTI SWEAT HEATER REAR RETURN AIR ANTI SWEAT HEATER FRONT DUAL LOW TEMPERATURE TEMP SWITCH 030 ANGLES V WWqiWWwwww EL ADDED 70 40 FAIL SAFE KLIXON FOR THE DRAIN PAN HEATER BIDECIMALS WE L BLACK DUAL LOW 2 3 MED TEMPERATURE EMP f r TEMP SWITCH DESCRIPTION FAN DELAY THERMOSTAT OPENS 50 F CLOSES 40 F BLUE RED 2 eA B X FAN MOTORS 1 IT 3 PER 12 CASE Ld OPTIONAL HOT GAS DEFROST 5 TERMINATION KLIXON m OPENS 55 F CLOSES 40 F OR CLOSES 55 F OPENS 40 F THE KLIXON 18 MOUNTED ON THE PIPE BETWEEN THE DISTRUBITOR AND THE CHECK VALVE ON THE EVAPORATOR COIL TO RACK CONTROL CIRCUITS March 2008 3518 NO 35012 DRAIN PAN HEATER DP HEATER CONTROL KLIXON OPENS 3O F CLOSES 50 F DP HEATER FAIL SAFE KLIXON OPENS 70 F CLOSES 40 F 120VAC 60HZ 120VAC 60HZ SUOR SUPPLY 220 SOHZ 220VAC SOHZ INTERNAT ONAL INTERNAT ONAL Page 19 NFJCX NCJCX Dual Temperature Control Circuits gt a 3 wu Ave n cub x s w RUE
16. PERDAY TIME MIN TEMP F PSIG LB FT DAY ELECTRIC FF_ 1 60 5 7 14 068 058 EECRC CO 1 36 50 3 8 ELECTRIC MD 1 3e 50 3 50 045 HOTGAS FF 23 2025 5 7 14 06 HOTGAS IC 1 5 23 If an Electronic Sensor is used for termination it should be set at 65 F termination temperature Set EPR to give this pressure at the case NFJCX NCJCX NTJCX APPLICATIONS The NFJCX NCJCX and NTJCX cases can be used in a wide variety of applications as described below NFJCX NCJCX These models have front and rear coils piped together and both wells are run off one compressor system Always pipe the compressor system that will supply the coldest application usage 1 Frozen food on both sides 2 Icecream on both sides NCJCX only 3 Medium temp on both sides No dual temp control is needed but you must specify the proper expansion valve and size the compressor system accordingly Frozen food on one side and ice cream on the other side NCJCX only Frozen food on one side and medium temp on the other side 6 Frozen food on one side and dual temp on the other side NOTE Dual temp refers to frozen food or medium temp operation by use of a dual temp control Dual temp also requires an expansion valve sized for the coldest dual temp operation 7 Dual temp on both sides NOTE This requires either one or two dual temp controls
17. ee ee PA W o ee m c ee ee w ba WALL F kN MOTON S 119 5 POWER SUPPLY ONAL TEMPERATURE 20BVAC 60 2 THERMOSTAT i 220VAC 50HZ arsi INTERNAT I ONAL OR 220VAC 50 7 INTERNAT I ONAL ELECTRIC DEFROST NOTE ALL CASES MUST BE GROUNDED March 2008 gt gt Lid gt Z gt Q LJ 2920 C C a C x lt x lt lt DFR H SA AS 44195 JO2JUNO6 RELEASE 030 ANGLES 1 DEG ul gt lt z awl LJ 5 bn lt ta Q D l N ad lt o a Page 17 NTJCX Dual Temperature Control Circuits ON Q mE iJ 7 4 WAR MERDA HMM SN 2 7 77 7 Ei A C An i ad Hm f 5 gt 16 gt n DRAIN PAN HEATER oz WWWWwWwwew p DEFROST TERM KLIXON Q OPEN 50 F CLOSE 30 F t MINIMI HL F C5 DEFROST HEATER mx 0 Mar CO a Fo to ils 5 FAN MOTORS E E 5 maur ol of allr rot rt 2 SOLENOID s VALVE BLUE BLACK MED 4 DUAL TEMP SWITCH FOR COIL RETURN AIR ANTI SWEAT HEATER REAR 030 ANGLES 1 DEG s CEN
18. equipment other than TYLER use conventional BTUH values Evaporator temperature is based on the saturated pressure leaving the case Air velocity is measured 60 minutes after defrost at the Discharge Air Ducts BTUH rating is for entire end case Stand alone end cases require higher capacity loads ADD 38 7 to frozen NFJECX loads ADD 51 296 to ice cream NCJECX loads ADD 70 196 to medium temp NFJECX loads 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 EVAPORATOR UNIT SIZING Electrical Data Fans 120 Volt and Optional T 8 Lighting with Electronic Ballasts 120 Volt x TOTAL FOR TOTAL FOR T 8 LIGHTING FOR CASE FANS STANDARD FANS ECM FANS OPT SUPERSTRUCTURE 8 4 136 1208 048 136 200 2400 12 6 204 1812 072 204 300 3600 NFJEC NCJECX 77 1 2 2 068 604 024 68 030 360 Heaters 120 and 208 Volt HEATER ANTI SWEAT HEATERS 120 V DEFROST HEATERS 208 V OPT DRAIN PAN CASE DISCHARGE AIR RETURN AIR SUPERSTRUCTURE COILS 208V Elec 120V HG moti ui aes wars muss wars anes vars ws wars meo wars ues war DRAIN PAN 8 192 2304 0 60 720 3 80 456 0 13 80 2
19. gt Carrier A United Technologies Company TYLER REFRIGERATION Installation amp Service Manual NFJCX NCJCX NT JCX NFJECX NCJECX JUMBO ISLAND FROZEN FOOD ICE CREAM MEDIUM TEMP MERCHANDISERS Low Medium and Dual 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 3 07 3 08 NO 9037164 REV H Tyler Refrigeration Niles Michigan 49120 NFJCX NCJCX NTJCX TYLER NFJECX NCJECX REFRIGERATION CONTENTS Page Specifications NFJCX NCJCX NTJCX NFJECX NCJECX Specification Sheets 4 Line Sizing Requirements See General UL NSF 185 Manual Pre Installation Responsibilities See General UL NSF 185 Manual Installation Procedures Carpentry Procedures 7 Case Pull Up Locations 1 Solid Partition 7 Plexiglas Partition 7 Superstructure Installation 7 Trim Installation Alignment
20. gt OPENS 56 F CLOSES 40 F TEMPERATURE HERMOSTAT CLOSES 55 F OPENS 40 F THERMOS 120VAC 60HZ an tal ON THE PIPE BETWEEN 220VAC 50 2 OR THE DISTRUBITOR AND I NTERNAT I ONAL 220VAC 50HZ THE CHECK VALVE ON 2 INTERNAT ONAL THE EVAPORATOR COIL 7 CONTROL CIRCUITS NOTE ALL CASES MUST BE GROUNDED Page 14 March 2008 NTJCX Domestic amp Export BO Hz Case Circuits Qc QA OL Lis 8 OPTIONAL TEMPERATURE FANS Os THERMOSTAT POWER SUPPLY 100 lo x LO J TORGI m aoe evened pasay lo gt wl 5 O S 60 2 99 o DRAIN PAN HEATER mW MAMMA HL E DEFROST LIMIT SWITCH o OPEN 50 F CLOSE 30 F wj wuj O zio OX AWWW S vid ud OPTIONAL z N 7 DEFROST HEATER i yo nsu EN FAN MOTORS LI E 11 3 12 CASE x 2 PER B CASE uem d a NM 44195 020 GH 32216 sunnos tc Cres sar ow REAR RETURN AIR ANTI SWEAT HEATER 7 z e e e t 3 8 CENTER RISER ANTI SWEAT HEATER REAR 9 Zi t B Eli gt 9 z lt lt ONT UE alm OPTIONAL SUPER STRUCTURE LIGHTING E T ele Six kik OPTIONAL SUPER STRUCTURE ANTI SWEAT HEATERS 1 mi Q ite A
21. must face the end posts in step 2 NOTE Notches on upright alignment channel will help position the channels properly 5 Position the upright alignment channel 14 on top of the upright posts 13 Using the holes in the upright alignment channel as a guide drill 1 8 pilot holes L 1 in the upright posts 13 and secure with 3 Install and align the center upright 10 screws 15 to base plate 8 and angle brackets 9 6 Install each pair of shelf brackets 16 in with four bolts 11 The four corner slots in upright posts 13 Use one RH bolts are used for adjusting the center and one LH bracket per shelf Super uprights The center uprights may face structures with end shelves have angled in either direction Connect upright wire brackets on the end shelf uprights 13 plugs 12 to harness Route wires and 7 Position shelves 17 on shelf brackets la E 16 and install front alignment screws insulation 18 Page 8 March 2008 Installation amp Service Manual 8 Install shelving close offs 19 in space between shelves The close offs are supported by the shelf brackets 16 If end close offs 20 are supplied they are also secured to the shelf brackets 16 21 22 9 Plug in the shelf anti sweat heaters 21 and shelf lights 22 NOTE Notches on upright alignment channel will help position the channels properly 10 Install top riser caps 23 on top of the center
22. or medium temp usage and is equipped with one electric defrost heater on each side The entire case both sides will operate at low or medium temperatures NCJCX is for ice cream usage and is equipped with one electric defrost heater on each side The entire case both sides runs from a single refrigeration system NTJCX is the dual temp split coil version for ice cream on one side and frozen food on the other The NTJCX is also equipped with one electric defrost heater on each side This case also has an insulated center partition to aid in maintaining the temperature difference in the two sides This allows either side of the case to be run from separate refrigeration systems The NTJCX case can also be setup to display frozen food on one side and medium temp on the other or ice cream on one side and medi um temp on the other Either side can be optionally set up with a dual temperature con trol to allow one side to be switched between low temp and medium temp operations The evaporator coils are piped individually so there are two refrigeration stub ups The NFJCX case can also be setup for dual temperature operations but the evaporator coils are piped together so there is only one refrigeration stub up This case requires extra refrigeration components to allow it to perform dual temperature operations NFJCX or NTJCX cases setup for electric defrost medium temp applications utilize the standard defrost heaters Gas defros
23. per order 9324546 2 TYLER REFRIGERATION For additional information on parts not listed above contact the TYLER Service Parts Dept Page 30 March 2008 NFJCX NCJCX NTJCX Installation amp Service Manual NFJECX NCJECX March 2008 Page 31 NFJCX NCJCX NTJCX NFJECX NCJECX Operational Parts List Case Usage Electrical Circuit Case Size Fan Motor Fan Motor Brackets Fan Bracket Plate Fan Blades 6 19 5B 6 21 3B 6 27 3B Opt ECM Fan Motors Opt ECM Fan Motor Brackets Opt ECM Fan Blades 6 13 5B Anti Sweat Heater Wire Discharge Air NFJCX NCJCX NTJCX Discharge Air NFJECX NCJECX Return Air Lo Watt NFJCX NCJCX NTJCX Domestic 115 Volt 60 Hertz g 5644521 5 Watt 5213132 9041077 9313752 9313764 2 Watt 5213132 9313765 9313417 5124216 Return Air NFJECX NCJECX Electric Def Heater NFJCX NCJCX NTJCX NFJECX NCJECX Electric Def Term Klixon Opt Gas Def Fan Delay Klixon Med or Dual Temp only Opt Gas Def Term Klixon Opt Gas Def Drain Pan Heater 50 30 Klixon Drain Pan Heater 120V Hot Gas All Models 208V Elec NFJCX 208V Elec NCJCX NTJCX Opt Superstructure Lighting 430MA Ballast 20W 1 lamp 430MA Ballast 40W 1 lamp T 12 Lampholder NSF Product Thermometer 9313431 9313263 9036670 9303208 9023508 0246348 9313385 9313436 9313349 0627909 0217544 5967100
24. CRIPTION NFJCX 8 amp 12 JUMBO ISLAND FROZEN FOOD OR MEDIUM TEMP MERCHANDISERS NCJCX 8 amp 12 JUMBO ISLAND ICE CREAM MERCHANDISERS NTJCX 8 amp 12 JUMBO ISLAND LOW TEMPERATURE FROZEN FOOD amp ICE CREAM DUAL TEMP SPLIT COIL MERCHANDISERS NFJECX JUMBO ISLAND FROZEN FOOD OR MEDIUM TEMP END MERCHANDISER NCJECX JUMBO ISLAND ICE CREAM END MERCHANDISER March 2008 Page 3 NFJCX NCJCX NTJCX TYLER NFJECX NCJECX REFRIGERATION SPECIFICATIONS NFJCX NCJCX NTJCX NFMJCX NFJECX NCJECX Jumbo Island and End Frozen Food Ice Cream Medium Temperature Merchandisers Refrigeration Data DISCHARGE AIR AVG REF CAPACITY BTUH FT CASE CHARGE TEMPERATURE VELOCITY MODEL LENGTH PARALLEL CONVENTIONAL FPM LBS FT NFJCX 8 12 FROZEN 544 568 2 28 45 260 085 NCJCX 8 12 Icecream 636 62 35 38 25 20 os NFJCX 8 12 MEDTEMP 437 48 5 13 2 260 085 NFJCX 8 12 FROZ MEDTEMP 272 218 284 224 25 15 28 13 15 22 260 043 043 NTJCX 8 12 FROZ ICECRM 272 318 284 326 25 35 28 38 15 25 260 0 43 0 43 NFJECX 77 1 2 FROZEN 1 633 1 704 25 28 5 242 035 NCJECX 77 1 2 ICECREAM 1 907 1 956 35 38 5 242 035 NFJECX 77 1 2 MEDTEMP 1 310 1344 13 2 242 035 For sizing all refrigeration
25. LI REAR RETURN AIR ANTI SWEAT HEATER CENTER RISER ANTI SWEAT HEATER REAR CENTER RISER ANTI SWEAT HEATER FRONT FRONT RETURN AIR ANTI SWEAT HEATER E LI Smm suae amas mone qune oeum ame mee e ee OPTIONAL SUPER STRUCTURE LIGHTING E s LV Y OPTIONAL SUPER STRUCTURE ANTI SWEAT HEATERS Hl 5199436 FAN DELAY KLIXON FOR MEDIUM TEMPERATURE USAGE OPENS 50 F CLOSES 40 F FAN MOTORS 3 PER 12 CASE ro et al 2 PER B CASE i M g py AR DRAIN PAN HEATER DP HEATER CONTROL KLIXON OPENS 3O F CLOSES 50 F FAN PANEL DU GROUND DP HEATER FAIL SAFE KL KA OPENS 70 F CLOSES 40 F ONAL 50 10 VALVE RED RED WE FJCX NCJCX 8 amp 12 9059558 DIAGRAM WRG HG N SZ 170 5 C AS 7 L A 8 32045 d 3 LB es 1 6 030 ANGLES ADDED 70 40 FAIL SAFE KLIXON FOR THE DRAIN DESCRIPTION PAN HEATER BIDECIMALS Y d 3 FANS B aes POWER SUPPLY OPTIONAL HOT GAS DEFROST 2 w TERMINATION KLIXON m 3 OPT I ONAL
26. N 5123832 4 low OPTIONAL DUAL wn TEMP GFA TEMP TEMPERATURE SWITCH M Alor 2 VALVE L Ek FAN MOTORS J DEFROST HEATER or QS 5 FAN PANEL GROUND Q DEFROST LIMIT SWITCH 3 OPEN 50 F CLOSE 30 F bi AM 22222224 ey ad 208VAC 60HZ SUPPLY ELECTRIC DEFROST OR il 120VAC 60 7 220VAC 5 2 SUPPLY INTERNAT I ONAL OR 220VAC 50HZ NOTE ALL CASES MUST BE GROUNDED NTERNATIONAL Page 22 March 2008 NFJCX NCJCX NTJCX Installation amp Service Manual NFJECX NCJECX Optional Superstructure Wiring Circuit END SHELF 4 STD SHELVES w LIGHTS END SHELF w LIGHT w LIGHT e 12 CASE SHOWN March 2008 Page 23 NFJCX NCJCX NTJCX NFJECX NCJECX CLEANING AND SANITATION Component Removal and Installation Instructions for Cleaning Bottom Screens and Trays 1 Remove product from bottom screens 2 Push screens up until bottom screen tabs clear the holes in the front duct 3 Remove bottom screens from holes in center riser panel and from case 4 Grasp and lift out each bottom tray from the case interior 5 After cleaning replace in reverse order Bottom tray should have ribs up CAUTION Do not place product directly on bottom trays Doing so could break a bottom tray and or cause damage to the case NSF Product Thermometer Hemove two screws and product thermome ters fr
27. T GLASS RETAINER ANTI SWEAT HEATER E o FRONT GLASS RETAINER ANTI SWEAT HEATER HAM al i lt lt LEFT GLASS RETAINER ANTI SWEAT HEATER 0 PZN 5123832 OPTIONAL DUAL OPTIONAL TEMPERATURE SWITCH SOLENOID VALVE m gt 2 P N 5233210 P N 5123832 HR e cH BROWN OPTIONAL FAN DELAY id p THERMOSTAT 3 BH OPENS 50 F CLOSES 40 F 3 FAN PANEL GROUND OPTIONAL HOT GAS DEFROST b x _ __ _ LLL TERMINATION KLIXON L SS ERO WALL OPENS SS F CLOSES 40 F 0 CLOSES 55 F OPENS 40 F NMOMH 32v 18 THE KLIXON 18 MOUNTED ON THE PIPE BETWEEN THE DISTRUBITOR AND THE CHECK VALVE ON THE EVAPORATOR COIL RACK NOMNOO 5 JSI NO 35019 lt z e 120VAC 60HZ SUPPLY OR CONTROL CIRCUITS 220VAC 50HZ HOT GAS DEFROST INTERNAT ONAL DISCHARGE AIR ANTI SWEAT HEATER oo A 49302008 E 7 PT RiGHT GLASS HEATER FRONT GLASS HEATER FILL UNUSED CONNECTORS WITH SILCONE CAUK LEFT GLASS HEATER OO gt DUAL TEMPERATURE A GLASS HEAT CONTROL KLIXON in OPENS 10 F CLOSES O F z P N 9310711 RIGHT GLASS RETAINER ANTI SWEAT HEATER A gt FRONT GLASS RETAINER ANTI SWEAT HEATER ET CN LEFT GLASS RETAINER HEATER q m em o P
28. TE Cladding corner trim bumper corner trim front bumper and front bumper retainer must be removed from the end case 1 Remove screws and front trim assembly 1 from top of front case wall 2 from top of front and or rear case wall 2 Cut the defective anti sweat wire 3 from the case wires Remove and replace the aluminum tape 4 and defective anti sweat wire 3 from inside of front and or rear trim assembly 1 Reconnect anti sweat wire 3 to case wires and reinstall front and or rear trim assembly 1 with screws Install bumper retainer bumper cladding reaceway cover and cladding joint trim to front and or rear of case March 2008 Cut the defective anti sweat wire 3 from the case wires Remove and replace the aluminum tape 4 and defective anti sweat wire 3 from inside of front trim assembly 1 Reconnect anti sweat wire 3 to case wires and reinstall front trim assembly 1 with screws Install front bumper retainer front bumper and all other removed corner trim Page 27 NFJCX NCJCX NTJCX NFJECX NCJECX PARTS INFORMATION Cladding and Trim Parts Lists Item Description CON DOF Q N O OI O 17 18 19 20 21 22 23 24 Bumper Retainer Bumper Retainer Hand Rail Backer Color Band Painted Color Band Backer Ptd Bumper End Trim Bumper Backer Bumper Front Cladding Ptd Raceway Cover Backer Raceway Cove
29. TER RISER ANTI SWEAT HEATER REAR A CENTER RISER ANTI SWEAT HEATER FRONT z RETURN AIR ANTI SWEAT HEATER FRONT WWW EL DUAL TEMP SWITCH FOR FRONT COIL DESCRIPT ON PIDECIMALS N N N sul Q Q Z gt LOCAT ION SOLENOID VALVE REAR 5199447 2 PER B CASE d DEFROST HEATER DEFROST TERM KLIXON OPEN 50 F CLOSE 30 F DRAIN PAN HEATER DFR TERM KL I XON 50 30 F F hj GROUND 90 n lt x Y m 2 8 5 208 60HZ GRN SUPPLY OR 120 80HZ 220VAC 50HZ SUPPLY INTERNAT ONAL OR 220VAC SOHZ INTERNAT I ONAL NOTE ALL CASES MUST BE GROUNDED Page 18 March 2008 OPTIONAL HOT GAS DEFROST 4 TERMINATION KLIXON OPENS 55 F CLOSES 40 F 9 ON THE PIPE BETWEEN THE DISTRUBITOR AND THE CHECK VALVE ON THE KLIXON IS MOUNT CLOSES 55 F OPENS 40 F ED THE EVAPORATOR COIL TO RACK CONTROL CIRCUITS FAN DELAY THERMOSTAT OPENS 50 F CLOSES 40 F SOLENOID VALVE L 3 Sa EM N 5 O DRAIN PAN HEATER MM gt 90 m m DP HEATER CONTROL KLIXON N 2 OPENS 30 F CLOSES 50 F 857 p o IVa DP HEATER FAIL SAFE KLIXON OPENS 70 F CLOSES 40 F 09 04 LC gl 32045 FAN MOTORS 3 PER 12 CASE K 33 aivol nad 2
30. are wired directly to the main power supply so they can operate at all times Superstructure Shelf Lamp Circuit Optional superstructures can be equipped with one row of 430MA T 12 or 265MA T 8 shelf lights March 2008 NFJCX NCJCX NTJCX NFJECX NCJECX Defrost Information See General UL NSF I amp S Manual for operational descriptions for each type of defrost control Defrost Control Chart Defrost Defrost Defrosts Duration Term Type Per Day Min Temp Electric FF 1 60 50 F Electric IC 1 36 50 F Electric MED 1 36 50 F Gas FF 2 3 20 25 55 F Gas IC 2 3 25 30 55 F Gas MED 2 3 16 20 55 F Most klixons are located on the right end of the evaporator coil The diagram shows the location for each defrost type that uses a klixon NFJCX NCJCX NTJCX 2B SSS Fio o 486 9222 5 N NFJECX NCJECX SS Su 5 S SS E Electric Defrost Termination F S Electric Defrost Failsafe Opt F D Gas Defrost Fan Delay D P Gas Defrost Drain Pan Heater 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 Page 11 NFJCX NCJCX NTJCX NFJECX NCJECX Defrost Schedules For satisfactory pe
31. d an additional check valve is mounted around the EPH valve to allow reverse flow 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 March 2008 Installation amp Service Manual Electrical Procedures Electrical Considerations CAUTION Make sure all electrical connections at components and terminal blocks are tight This prevents burning of electrical terminals and or premature component failure NOTE The raceway houses the electrical wiring components and terminal blocks for the case All raceway covers will be shipped loose Case Fan Circuit This circuit is to be supplied by an uninterrupt ed protected 120V circuit Cases being used for Low Temp applications with electric or gas defrost keep fans on all the time Cases being used for Medium Temp applications with electric defrost also keep fans on all the time Cases being used for Medium Temp applications with gas defrost cycle fans with a 50 40 klixon Anti Sweat Circuit NFJCX NCJCX NTJCX cases have one anti sweat heater on each side of the top of the center riser discharge air and one in each rub rail return air When cases are equipped with an optional superstructure there is an anti sweat heater on the superstructure NFJECX NCJECX end cases have one anti sweat heater in the rear riser discharge air and one in the rub rail return air Anti sweat heaters
32. d as a single phase load or they can be wired as an unbalanced 3 phase load The 3 phase defrost information is based on dividing the heater loads as evenly as possible across the phases NOTE Optional shelving superstructures with lights have the same electrical requirements per row of lights as the amps shown m gt March 2008 Page 5 NFJCX NCJCX NTJCX TYLER NFJECX NCJECX REFRIGERATION NFJCX NCJCX NTJCX CROSS SECTION 19 3 4 4 To Center of Front and Rear Drain 2 74 1 2 2 78 1 2 NFJCX NCJCX NTJCX FLOOR PLAN Add 1 for Add 4 1 4 Insulated for Add 1 1 2 Partition for Flat Wrap End Patch End T ILL S LLLI Lu LL s ss 2 1 2 Clearance Between Bottom of Drain Pipe and Floor 1 1 2 PVC Pipe Waste Outlet STD to Front of Case OPT to Rear of Case Plug side not used Refrigeration 7 8 Suction 3 8 Liquid ama e ama am al 0 5 4 2 igeration uction March 2008 Installation amp Service Manual INSTALLATION PROCEDURES Carpentry Procedures Back of End Case Case Pull Up Locations The NFJCX NCJCX NTJCX models have two pull ups at each end of the case Pull ups A and B are located as shown and used for join ing all cases The NFJECX NCJECX models have four pull
33. ers in the bottom slots 5 Remove two bottom screws 8 and lift off the bumper corner trim 9 6 Replace bumper corner trim raceway corner trim corner cladding trim raceway covers kickplates kickplate corner trim and mounting hardware in reverse order 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 1 Remove bottom trays from case 2777 f 2 Unscrew and remove top coil cover 1 3 Unscrew and lift up fan plenum 2 4 Disconnect defective defrost heater 3 and remove mounting clips 4 and defrost heater 3 from front of coil assembly 5 5 Install new defrost heater 3 in reverse order 6 Restore electrical power to case Page 25 NFJCX NCJCX NTJCX NFJECX NCJECX Drain Pan Heater Replacement WARNING Always shut off electricity to case before replacing a drain pan heater Automatic cycling of fans or electrical power to wire ends could cause personal injury and or death 1 Remove bottom trays from case 2 Unlug defective drain pan heater 1 and remove from slots in bracket supports 2 3 Install new drain pan heater 1 in reverse order 4 Restore electrical power to case Anti Sweat Replacement WARNING Shut off or disconnect power supply to case before changing an anti sweat Electrical po
34. mpo nents replace front cladding and corner trim components in reverse orde using instructions below and on page 21 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 March 2008 Installation amp Service Manual SERVICE INSTRUCTIONS See General UL NSF 185 Manual for fan blade and motor replacement color band and bumper replacement and raceway cover removal instructions NSF Product Thermometer Replacement L Remove two screws 1 and thermometer 2 from top right end of front or rear return air ducts m Install and secure a new product ther mometer 2 on front or rear return air ducts with two screws 1 Corner Trim Replacement Since some of the corner trim fasteners are hidden remove the trim and hardware in the following sequence 1 Remove mounting screwsm kickplates 1 and kickplate corner trim 2 from both sides of the corner trim 2 Remove raceway covers 3 from both sides of the corner trim March 2008 NFJCX NCJCX NTJCX NFJECX NCJECX 3 Remove four screws 4 and corner cladding trim 5 4 Remove two top screws 6 from the raceway corner trim 7 then lift and remove the raceway corner trim 7 from the retain
35. om top right end of front and rear return air ducts After cleaning replace product thermometer on front and rear ducts and secure with screws Discharge Air Honeycomb 1 Remove screws and bottom retainer strips from both sides of the top of the center riser NOTE Note position of the honeycomb grid during removal so it can be reinstalled the same way 2 Remove honeycomb grid sections from both sides of the center riser 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 strips and screws Page 24 TYLER REFRIGERATION Discharge Air Duct Panels 1 Remove bottom trays and discharge air honeycomb see above 2 Remove mounting screws and discharge air duct panels from both sides of the center riser NFJCX NCJCX NTJCX Or Remove mounting screws and discharge air duct panels NFJECX NCJECX 3 After cleaning replace in reverse order Return Air Duct Panels 1 Remove bottom trays see this page 2 Remove mounting screws and front and rear return air duct panels NFJCX NCJCX NTJCX Remove mounting screws and front return air duct panels NFJECX NCJECX 3 After cleaning replace in reverse order Corner Trim 1 See page 21 for corner trim removal Instructions 2 After cleaning trim and cladding co
36. ould be piped to thier respective systems and defrosts should be scheduled at the same time Each coil requires a separate defrost termination klixon at the check valve 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 13 thru 23 will cover the NFJCX NCJCX NTJCX NFJECX NCJECX case circuits electric defrost circuit gas defrost circuit dual temperature control circuits and the super structure wiring circuit March 2008 NFJCX NCJCX Domestic amp Export 50 Hz Case Circuits DEFROST LIMIT SWITCH OPEN 50 F CLOSE 30 F D 1 1 55 OTHERWISE DIMENSIONS APPLY TO FINISHED PART AFTER ANY TREATMENT 5 NO MANUAL REVISIONS ALLOWED FAN MOTORS FRONT RETURN AIR ANTI SWEAT HEATER WiWwwwWwr EL FAN MOTORS 3 PER 12 CASE 2 PER B CASE a IR OPTIONAL SOLENOID VALVE DEFROST HEATER DEFROST LIMIT SWITCH OPEN 50 F CLOSE 30 F DRAIN PAN HEATER TEMPERATURE i POWER SUPPLY NOTE ALL CASES MUST March 2008 a v o
37. partition Drill pilot holes in the top center of the two riser caps and secure with screws 24 11 Position card moulding 25 as shown and drill 1 8 pilot holes in riser caps 23 Secure card mouldings 25 to riser caps 23 with screws 26 March 2008 NFJCX NCJCX NTJCX NFJECX NCJECX Trim Installation Alignment See General UL NSF 1 5 Manual for bumper color band raceway and kickplate installation Corner Trim Installation Most corner trim on these cases comes fac tory installed The kickplate corner trim requires field installation 2 After kickplates 1 have been installed posi tion kickplate corner trim 2 over both ends of the kickplates 1 and secure with screws Bottom Trays CAUTION Placing product directly on bottom trays could break a bottom tray and or cause damage to the case The bottom trays are made from polypropy lene They are designed to be non weight bearing After the bottom trays have been installed be sure to install the bottom screens before stocking the case with product The bottom trays should have the ribs up Plumbing Procedures See General UL NSF 188 Manual for recommended drain practices Page 9 NFJCX NCJCX NTJCX NFJECX NCJECX Refrigeration Procedures See General UL NSF 185 Manual for general system control and superheat information There are three standard versions of the 8 and 12 case is for frozen food
38. r End Trim Raceway Cover Kickplate Ptd per side Screw per retainer Raceway Cover Retainer per case Screw per side Kickplate Support Assy per side Shoulder Screw Screw per support Raceway Support per side Screw Raceway Shoulder Screw per side Horizontal End Trim Base End Closeoff LH for flat end Base End Closeoff RH for flat end Interior Joint Trim not shown Center Interior Joint Trim Ptd Return Air Joint Trim Top Return Air Joint Trim Bottom NFJCX NCJCX NTJCX 8 12 color per order 9025316 2 9025316 2 9023798 2 9023800 2 9040223 2 9040223 2 color order color per order color per order 9041965 2 9041966 2 color per order color per order color per order 9313317 9313310 5183536 2 5183536 2 9023841 4 9023841 6 5183536 8 5183536 12 9323069 4 9323069 4 9025833 8 9025833 8 5183536 5183536 9041322 4 5183536 12 9300243 9025833 8 5196166 9027925 9027926 9308850 4 5207491 2 5203015 2 9041322 6 5183536 18 9300244 9025833 10 5196166 9027925 9027926 9308850 4 5207491 2 5203015 2 TYLER REFRIGERATION For additional information on parts not listed above contact the TYLER Service Parts Dept Page 28 March 2008 NFJCX NCJCX NTJCX Installation amp Service Manual NFJECX NCJECX 23 22 42 20 19 1718 16 15 14 13 12 March 2008 Page 29
39. rformance both sides of the case should be scheduled to defrost at the same time This holds true even when both sides run from different machines Two Single Machines use the defrost clock which controls one of the machines and run a relay to control the other machine Defrost load is spread across clock contacts and extra contactors as required Parallel with Electric Defrost and Dual Temp or Dual Temp Split Coil Operation use one station of the multi circuit time clock to control the defrost circuit breakers for the cases defrost heaters This ensures both sides defrost at the same time Parallel with Gas Defrost NTJCX only Make sure that only 2596 of the combined load frozen food amp ice cream is on one circuit Use one station of the multi circuit time clock to control the booster circuit and that portion of the frozen food cases opposite the ice cream side Gas defrosting is only available as an option on cases operated from a parallel system About 2596 of the cases can be defrosted at one time This allows the refrigeration heat being removed from the cases to be used to defrost the others Page 12 TYLER REFRIGERATION NOTE Insulated partitions must be used between case line ups that have gas defrost Gas defrost cases NFJCX NCJCX NFJEOCX NCJECX are piped individually and are to be joined at installation when both sides are on the same system Dual Temp Split Coil cases NTJCX with gas defrost sh
40. t medium temp applications incorporate a fan delay klixon 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 Page 10 TYLER REFRIGERATION 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 Gas Defrost Dual Temperature Controls with EPR Valve SUCTION LINE TO COMPRESSOR N d Suction L Electric Defrost Dual Temperature Controls with EPR Valve TO EXPANSION VALVE 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 14 psig of suction pressure With the suction line solenoid open the coil pressure operates at 14 psig with a temperature of 25 F When the toggle switch is flipped the solenoid closes directing the flow through the EPR valve If the EPR valve is set for 49 5 psig the evaporator will see a coil temperature of 15 F and will operate at a discharge air temperature of about 22 F When gas defrost is use
41. ture Installation Make sure discharge air grids are removed Remove top riser cap knockouts and insula tion on top of center partition from the super structure end sockets and upright support angles 1 Ifthe wiring harness has not been factory installed remove insulation from top of center riser and lay wire harnesses 1 on top of the center partition 2 The 8 harness has three female plugs and one male plug The 12 harness has four female plugs and one male plug There is one harness for shelf anti sweat heaters Page 7 NFJCX NCJCX NTJCX TYLER NFJECX NCJECX REFRIGERATION and one for the shelf lights The sockets NOTE are not interchangeable The anti sweat Items 8 and 9 will be shipped loose on harness male plug connects at the RH superstructures ordered through TYLER post socket The light harness male plug Service Parts Department Separate goes down the RH post socket 3 and installation instructions will be provided plugs into the matching receptacle in the with the superstructures 115V case wiring block 4 Replace 19 insulation 4 Ge 13 dem TI lr I Rl 16 18 1 17 gt 2 Position the RH end post 5 in the RH superstructure hole in the center riser 3 Install the two plugs 6 and push them into the insulation Push down the RH end post 5 until it seats into the center riser 3 and secure with four bolts 7 NOTE On 12 cases the electrical outlets on the center posts
42. ups at the rear of the case Pull ups A B C and D are located as shown and used for joining end cases Pull ups C and D are shipped loose All pull ups should be installed and tightened starting with A and finishing with B or D After cases have been pulled together fill and seal all gaps between cases and or patch ends with caulking 1 Solid Partition A 1 insulated partition is required between adjacent gas defrost cases that are on different defrost schedules 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 March 2008 NFJCX NCJCX NTJCX NFJECX NCJECX 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 differ ent defrost schedules These partitions can be installed after the cases have been joined 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 Superstruc
43. wer from wire ends could damage other components and or cause personal injury or death Page 26 TYLER REFRIGERATION Center Riser Discharge Air Anti Sweat NFJCX NCJCX NTJCX 2 a N S x2 x S SN 1 Remove screws 1 and top riser caps 2 and insulation from top of center riser 3 2 Disconnect or cut the defective anti sweat wire 4 from the case wires 3 Remove and replace the aluminum tape and defective anti sweat wire 4 from the bottom of the top riser cap 2 4 Reconnect the new anti sweat wires to case wires and reinstall the insulation top riser caps and screws Discharge Air Anti Sweat NFJECX NCJECX lt 1 34 da 5 1 Remove screws and 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 and reinstall rear guard trim with screws March 2008 NFJCX NCJCX NTJCX Installation amp Service Manual NFMJCX NFJECX NCJECX Return Air Duct Anti Sweat NFJCX NCJCX NTJCX NOTE Cladding joint trim raceway cover cladding bumper and front and bumper retainer must be removed from front and or rear of case 1 Remove screws and trim assembly 1 Return Air Duct Anti Sweat NFJECX NCJECX NO
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