Installation & Service Manual
Contents
1. DEG 1 23420 31MAR99 2 9 58 CH FAN MOTORS 3 PER 12 CASE vi la 2 PER 688 2 PER END CASE I FAN PANEL 4 CROUND I qan CASE WALL SOI 3 OPT ONAL HOT GAS DEFROST TERMINATION THERMOSTAT OPENS 55 F CLOSES 40 F THERMOSTAT 15 MOUNTED ON THE PIPE BETWEEN THE DISTRUBITOR AND THE CHECK VALVE ON THE EVAPORATOR COIL TO RACK CONTROL CIRCUITS HOT CAS DEFROST T 2 1 SES 2 GRN lt o z 515 Pu olz xi FANS 915 1 a Bs z s5 LIGHTS ANT SWEATS Su n e x J Bes lt ajo gt Sp Ch Li o elz i 120VAC 60 2 M SUPPLY a OR 220VAC 50 2 INTERNAT ONAL END CASE HEATERS RIGHT GLASS HEATER VAMAMAMAMANAMMWIS FRONT GLASS HEATER HI LEFT GLASS HEATER WAWAN 3 PER 1 STANDARD CASE GLASS HEATERS DUAL TEMPERATURE GLASS HEATED GLASS PANELS tt LASS PANELS e END CASE WIRING FOR Tui DUAL TEMPERATURE Li H rd E i i 1 a J HEATER THERMOSTAT2. 1 Unplug glass anti sweat wires 1 February 2001 NFW NCW NFWG NCWG NFWE NCWE Remove two screws 2 and glass joint trim 3 from both joints of the broken glass 4 Remove screws 5 and glass trim rail 6 from top of glass 4 Loosen rear retainer 7 and remove bro ken glass 4 from glass retainer assem bly 8 NOTE Inspect the anti sweat wire in glass retain er 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 Position new glass 4 in glass retainer assembly 8 and secure by tightening rear retainer 7 Install glass trim rail 7 with screws 6 over top edge of new glass 4 Install glass joint trim 3 with two screws 2 over the joint areas of glass 4 Reconnect the anti sweat wires 1 Page 19 NFW NCW NFWG NCWG NFWE NCWE PARTS INFORMATION Operational Parts List Models NFW NCW NFWG NCWG Case Usage Electrical Circuit Case Size Fan Motor Fan Motor Brackets Fan Bracket Plate Fan Blades 6 27 3B Opt ECM Fan Motor Opt ECM Fan Motor Brackets Opt ECM Fan Blades 6 25 1 4 3B Anti S weat Heater Wire discharge air NFW NCW glass retainer NFWG NCWG Electric Def Heater Electric Def Term Klixon Opt Gas Def Fan Delay Klixon Opt Gas Def Term Klixon NSF Product Thermometer Domestic 115 Volt 60 Hertz 8 12 51
3. 03 6 9 2785 35F 6 ADD 0 4 amps to the adjacent case for the End Case Superstructure Anti Sweats If the End Case Superstructure has lights ADD an additional 0 3 amps per row to the adjacent case February 2001 Page 5 NFW NCW NFWG NCWG NFWE NCWE INSTALLATION PROCEDURES Carpentry Procedures Case Pull Up Locations The NFW NCW NFWG NCWG 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 The NFWE NCWE models have six pull ups at the rear of the case Pull ups A B C D E and F are located as shown and used for joining end cases All pull ups should be installed and tightened starting with A and finishing with B or F Page 6 Tyler Refrigeration 1 Solid Partition A 1 insulated partition is required between adjacent gas defrost cases that are on differ ent 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 refrigera tion to all parts of the case line up Apply sealantto 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 Partiti
4. OPENS 10 F CLOSES O F DUAL TEMPERATURE SWITCH FAN MOTORS LOW TEMP o 3 PER 12 CASE 2 PER 6 amp 8 CASE 2 PER END CASE MED TEMP WHITE E DEFROST HEATER SOLENOID WA PAN PANEL VALVE DEFROST LIMIT SWITCH ROUND BLUE OPEN 50 F CLOSE 30 F Le SECOND DEFROST HEATER E GO STANDARD ON END CASES CI RANIERI TIA CASE WALL m 22 a FANS D SWEATS 208VAC 60HZ SUPPLY OR ll 120VAC 60HZ 220VAC 5042 SUPPLY INTERNATIONAL OR 220VAC INTERNATIONAL ELECTRIC DEFROST Page 14 February 2001 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 f
5. 9025058 9025061 color per order 9025833 36 9025833 52 9300197 4 9300197 4 color per order 9300218 9300219 color per order 9023841 4 9023841 6 color per order 5183536 8 5183536 12 9042340 4 9042340 4 9025833 8 9025833 8 color per order 9041790 9041790 color per order 9301351 9301352 9025637 9025638 color per order 9020971 9020972 9023798 9023800 color per order 5128700 5128700 9031808 9031808 5048626 2 5048626 2 February 2001 NFW NCW NFWG NCWG Installation amp Service Manual NFWE NCWE February 2001 Page 25 NFW NCW NFWG NCWG NFWE NCWE Item Description 1 Screw per trim 2 LH J oint Riser Trim RH J oint Riser Trim 3 Side Bumper Retainer Handrail 4 Side Color Band Ptd 5 Side Bumper 6 Side Cladding Ptd 7 Side Raceway Cover 8 Shoulder Screw per side 9 Bumper Backer per end case 10 Side Kickplate 11 Side Kickplate Extension Opt 12 Shoulder Screw per kickplate support 13 Kickplate Support Assembly 14 Raceway Cover Support Screw per support 15 Raceway Cover Backer 16 Cladding Retainer 17 FrontRaceway RH Side Raceway LH Side Raceway 18 Raceway Cover Support 19 Raceway Cover Retainer Screw 20 FrontKickplate Extension Opt 21 Shoulder Screw 22 FrontColor Band Ptd 23 FrontRaceway Cover 24 Front Cladding Ptd 25 Front Bumper 26 FrontKickplate 27 Kickpl
6. 40 F OR 220VAC SOHZ THERMOSTAT 15 MOUNTED INTERNATIONAL ON THE PIPE BETWEEN THE DISTRUBITOR AND THE CHECK VALVE ON THE EVAPORATOR COIL TO RACK CONTROL CIRCUITS 120VAC 60HZ SUPPLY ALL CASES MUST BE GROUNDED Page 12 February 2001 NFWE NCWE Domestic amp Export 50 2 End Case Circuits REAR RISER AND TRIM RAIL ANTI SWEAT HEATERS NFWE NCWE 9028670 RIGHT GLASS RETAINER ANTI SWEAT HEATER FRONT GLASS RETAINER ANTI SWEAT HEATER LEFT GLASS RETAINER ANTI SWEAT HEATER WIRING NF D NC G E RIGHT GLASS HEATER FRONT GLASS HEATER p 7 UNALUS S ON NF C FOR MEDIUM TEMPERATURE USAGE LEFT GLASS HEATER B B e tc H 79 054 E 1 E mm H H Le Ci os J 2 T Sea Saa 23349 9 carc FAN DELAY THERMOSTAT USED ON NF G E MEDIUM TEMPERATURE CASES OPENS so F CLOSES 40 F ONAL HOT GAS DEFROST TERMINATION THERMOSTAT OPENS SS F CLOSES 40 F CIMALS 030 ANGLES 1 DEG po er TER EE D Gi oR 220 _SOHZ CONTROL CIRCUITS INTERNAT I ONAL REAR RISER AND TRIM RAIL ANTI SWEAT HEATERS RIGHT GLASS RETAINER ANTI SWEAT HEATER FRONT GLASS RETAINER ANTI SWEAT HEATER LEFT GLASS RETAINER ANTI SWEAT HEATER RIGHT GLASS HEATER 1 JG GLASS EA i FOR MEDIUM TEMPERATURE USAGE FRONT GLASS HEATER
7. Gen UL NSF I amp S Man NSF Product Thermometer Replacement 16 Corner Trim Replacement 16 Defrost Heater Replacement 17 Anti Sweat Replacement 17 Front Glass Replacement NFWG NCWG 19 Parts Information Operational Parts List 20 Cladding and Optional Trim Parts List 22 NEW and NEW cnd d a tit vedo Yo fd om es 22 NFWG NCWG 24 NFWE 26 TYLER Warranty See General UL NSF I amp S Manual The following Low Temperature Wide Island and Wide Island End Frozen Food and Ice Cream Merchandiser models are covered in this manual MODEL NFW NCW NFWG NCWG NFWE NCWE DESCRIPTION 8 amp 12 WIDE ISLAND FROZEN FOOD MERCHANDISER 8 amp 12 WIDE ISLAND ICE CREAM MERCHANDISER 8 amp 12 GLASS FRONT WIDE ISLAND FROZEN FOOD MERCHANDISER 8 amp 12 GLASS FRONT WIDE ISLAND ICE CREAM MERCHANDISER WIDE ISLAND FROZEN FOOD END MERCHANDISER WIDE ISLAND ICE CREAM END MERCHANDISER February 2001 Page 3 NFW NCW NFWG NCWG NFWE NCWE Tyler Refrigeration SPECIFICATIONS NFW NCW NFWE NCWE Wide Island and End FF amp IC Merchandiser 550 aomen 450 so LZ 321 Evaporator temperature is defined as the satura
8. LEFT GLASS HEATER FAN MOTORS d H DEFROST HEATER DEFROST LIMIT SWITCH Gf OPEN SO F CLOSE 30 F SECOND DEFROST HEATER STANDARD ON SC CASES TO FANS POWER SUPPLY THERMOSTAT Or 120 60HZ 220 5 2 INTERNAT I ONAL SUPPLY OR NOTE ALL CASES MUST BE GROUNDED INTERNATIONAL February 2001 Page 13 TYLER REFRIGERATION CORP CLAIMS RIGHTS TQ THE INFORMATION ON THIS DRAWING 1 INFORMATICN 15 FOR ENGINEERING USE ONLY Dual Temperature Control Circuits END CASE HEATERS HEATED GLASS PANELS STANDARD CASE GLASS HEATERS 3 PER 12FT 2 PER 6 amp SFT RIGHT GLASS HEATER MAMANS FRONT GLASS HEATER YW WWW HIA Hi LEFT GLASS HEATER YWA WWW XR END CASE WIRING FOR DUAL TEMPERATURE CASES TEMPERATURE DUAL TEMPERATURE GLASS HEATER THERMOSTAT OPENS 10 F CLOSES 0 AND MAY NOT USED WITHOUT PERMISSION 3 ALL DIMENSIONS ARE IN INCHES UNLESS SPECIFIED OTHERWISE 5 NO MANUAL REVISIONS ALLOWED ES FAN DELAY THERMCSTAT OPENS 50 F CLOSES 40 F 9028671 H as ES DUAL TEMPERATURE SWITCH BLACK lt x 2 of e T LOW 216 TEMP TEMP E UI BLUE WHITE SOLENOID VALVE RED
9. re E DEFROST LIMIT THERMOSTAT OPENS SO F CLOSES 30 F OE E SECOND DEFROST HEATER 15 STANDARD IN NCN AND NCB CASES FAN MOTORS 3 PER 12FT 2 PER 8FT CASES TO FANS POWER SUPPLY ONAL CASE TEMPERATURE THERMOSTAT ZO8VAC 60HZ 120VAC 60 2 SUPPLY SUPPLY OR 220VAC 50 2 220VAC 50 2 INTERNAT IONAL INTERNAT IONAL ALL CASES MUST BE GROUNDED February 2001 Page 11 jJ OPTIONAL SUPER STRUCTURE LIGHTING POWER CONNECTION FOR OPTIONAL POWER HARNESS CONNECTION FOR SUPER STRUCTURE ANTI SWEAT HEATERS NFB amp NCB CASES ONLY SEE INSTALLATION MANUAL FOR SEE INSTALLATION MANUAL FOR HARNESS CONNECT IONS SUPERSTRUCTURE WIRING NFB amp NCB CASES ONLY NCB G NFW NCW 9028669 SECOND REAR RISER ANTI SWEAT HEATER DH NFB AND NCB CASES ONLY WHAT REAR RISER DISCHARGE WU E ANTI SWEAT HEATER DIA WIRING NFN NCN NFB N LL 297 37 057 A sel ene Les Le C Ri LEFT GLASS PANEL ANTI SWEAT HEATER RIGHT GLASS PANEL ANTI SWEAT HEATER GLASS TRIM RAIL ANTI SWEAT HEATER WWW GLASS RETAINER ANTI SWEAT HEATER WWW ANTI SWEAT HEATER CONNECTIONS FOR GLASS FRONT CASES ONLY HOT GAS DEFROST CIMALS 030 ANGLES 1 DEG 9 NEW BOARDER HG SYM 23345 paano Lc cx TO FANS POWER SUPPLY OPTIONAL CASE TEMPERATURE THERMOSTAT GAS OPTIONAL HOT 2 DEFROST TERMINATION m THERMOSTAT e OPENS 5S F CLOSES
10. 020972 2 24 Bumper End Trim per patch end color per order 25 Horizontal End Trim 5128700 5128700 Page 22 February 2001 Installation amp Service Manual February 2001 NFW NCW NFWG NCWG NFWE NCWE Page 23 NFW NCW NFWG NCWG NFWE NCWE Item Description 1 2 3 4 5 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 Return Air Duct Trim Screw Screw Top Rear Riser J oint Trim Rear Color Band Backer Ptd Front Color Band Backer Ptd Rear Handrail Backer Bumper Backer Rear Raceway Cover Support Front Raceway Cover Support Screw per support Front Bumper Retainer Rear Bumper Retainer Handrail Shoulder Screw Cladding Retainer Raceway Cover Backer Raceway Raceway Cover End Trim per patch end Raceway Cover Retainer Kickplate Extension Opt Screw Kickplate Support Assembly Shoulder Screw Kickplate Kickplate Backer Raceway Cover Front Cladding Ptd Rear Cladding Ptd Bumper Front Color Band Ptd Rear Color Band Ptd Bumper End Trim per patch end Horizontal End Trim Glass J oint Trim Assembly Screw per joint trim Page 24 Tyler Refrigeration NFWG NCWG 8 12 5207491 5207491 5145037 4 5145037 4 5145037 4 5145037 4 5203016 5203016 9040223 9040223 9025982 9025982 9025316 9025316 color per order 9041327 4 9041327 4 9041324 4 9041324 4 5183536 8 5183536 8
11. 25532 5125532 5 Watt 5 Watt 5213132 5213132 9041077 9041077 5104294 5104294 9025022 9025022 8 Watt 8 Watt 5205279 5205279 9025138 9025138 5124818 5124819 5218331 5218332 5124521 5124522 5125211 5125211 9023503 9023503 9023508 9023508 5967100 5967100 Tyler Refrigeration Export 220 Volt 50 Hertz 8 12 5126572 5126572 5 Watt 5 Watt 5213132 5213132 9041077 9041077 5104294 5104294 5124216 5124217 5081149 5081148 5124521 5124522 5125211 5125211 9023503 9023503 9023508 9023508 5967100 5967100 For information on operational parts not listed above contact the TYLER Service Parts Department Page 20 February 2001 NFW NCW NFWG NCWG Installation amp Service Manual NFWE NCWE Models NFWE NCWE Case Usage Domestic Export Electrical Circuit 115 Volt 60 Hertz 220 Volt 50 Hertz Case Size End Case End Case Fan Motor 5125532 5202538 5 Watt 5 Watt Fan Motor Brackets 5213132 5213132 Fan Bracket Plate 9041077 9041077 Fan Blades 6 27 3B 5104294 5104294 Opt ECM Fan Motor 9025002 gt 8 Watt Opt ECM Fan Motor Brackets 5205279 Opt ECM Fan Blades 9025138 gt 6 25 1 4 3B Anti S weat Heater Wire discharge air 5225810 5639012 return air 5225805 5639011 Electric Def Heater 5225840 5225840 Electric Def Term Klixon 5125211 5125211 Opt Gas Def Fan Delay Klixon 9023503 9023503 Opt Gas Def Term Klixon 9023508 9023508 NSF Product Thermometer 5967100 5967100 For information on operati
12. CWE a 1 3 4 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 1 with screws Front Glass Retainer Anti Sweat NFWG NCWG See Front Glass Replacement on page 18 for glass removal and glass retainer anti sweat replacement instructions Page 18 Tyler Refrigeration Return Air Duct Anti S weat NFWE NCWE NOTE 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 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 inside of front trim assembly 1 4 Reconnect anti sweat wires to case wires and reinstall front trim assembly with new rivets 5 Install front bumper retainer front bumper and all other removed corner trim on the end case February 2001 Installation amp Service Manual Front Glass Replacement NFWG NCWG NOTE End cases require corner trim removal before replacing the glass See Corner Trim Replacement in this manual
13. FW NCW NFWG NCWG NFWE NCWE SERVICE INSTRUCTIONS See General UL NSF 165 Manual for fan blade and motor replacement color band and bumper replacement and raceway cover removal instructions NSF Product Thermometer Replacement 22 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 rear of case with four screws 1 Page 16 Tyler Refrigeration Corner Trim Replacement NFW NCW NFWG NCWG w wrap ends NFWE NCWE end cases Since some of the corner trim fasteners are hidden remove the trim and hardware in the following sequence 1 Remove kickplates 1 and kickplate ner trim 2 2 Remove raceway covers 3 from both sides of the corner trim 3 Remove four screws 4 and cladding cor ner trim 5 4 Remove two top screws 6 from raceway corner trim 7 then lift and remove the raceway corner trim 7 from the retainers in the bottom slots 5 Remove two bottom screws 8 and lift off the bumper corner trim 9 6 Replace bumper corner trim raceway cor ner trim corner cladding trim raceway covers and kickplates in reverse order 5 Install new defrost heater 6 in reverse order 6 Re
14. SWT SUPERSTRUCTURE STD ECM WISUPER SHELF LIGHTS PER FT FANS FANS ANTI SWT STRUCTR ROW AMPS 19 1 4 18 a 12 1 5 6 2 4 33 12 STUB UP NOTE One floor drain can serve up to two cases per drain One electrical stub up can serve a number of cases depending on the circuits required utilizing the continuous wirw raceway s on the front of the cases One refrigeration stub up can serve several or all cases on a line up with case to case piping Maximum 1 5 8 for case to case piping END CASE lt gt 54 1 2 _ FLOOR PLAN lt 35 1 4 Base Case back can be drilled for i case to case refrigeration 35 1 2 40 1 8 _1 Galvanized pipe OA Waste Outlet 7 14 Electric Refrigeration Ze i 5 8 Suction E 3 8 Liquid 35 1 4 2 8 1 2 6 3 4 Add 1 1 2 for Standard D Patch End 54 1 2 Add 1 for d 4 1 4 Insulated tor Wrap Partition End na B or 12 Rear of Case Denotes Auxiliary Refrigeration Stub Ups cialde sind 0 48 q 1 Galvanized pipe FLOOR PLAN 54 1 2 IX Waste Outlet efrigeration Electric SCH 5 8 Suction 3 8 Liquid zi ee Base Rail Front of Case E 51 2 22 212 4 or 5 gt END CASE REFRIGERATION AND ELECTRICAL DATA AMPS 120V DATA 208V BTUH STD DRAIN DEFROST REQUIRED FANS ANTI SWT HEATER HEATER IC
15. TYLER Installation amp Service Manual NFW NCW NFWG NCWG NFWE NCWE WIDE ISLAND 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 1999 PRINTED IN Specifications subjectto REPLACES ISSUE PART U S A change without notice EDITION DATE 2 01 No 9037140 REV Tyler Refrigeration Corporation Niles Michigan 49120 NFW NCW NFWG NCWG NFWE NCWE Tyler Refrigeration CONTENTS Page Specifications NFW NCW NFWE NCWE Specification Sheets 4 Line Sizing Requirements See General UL NSF I amp S Manual Pre Installation Responsibilities See General I amp S Manual Installation Procedures Carpentry Procedures 6 CasePul UpLocationS 6 ENEE aria 6 Plexiglas Partition 6 Superstructure Installation 7 Trim Installation Alignment 9 Plumbing Procedures See General UL NSF I amp S Manual Refri
16. arnesses 4 to supply power to the shelves 2 amp 3 Post heater pads 5 must be located even with the load lines of the case to provide a heat barrier to prevent sweating Their pressure sensative backs make installation easy 5 The light and heater harness wires in the lower upright must be inserted underneath the tray support and plugged into the prop er receptacles 6 Secure the lower uprights 1 to the patch ends with 3 8 16 x 1 screws 6 for addi tional support In a continuous line up the ends of the shelves can be bolted together 7 Before inserting the wires into the upright posts transfer drill 7 64 thru the covers and into the posts This will prevent accidental drilling into the wires Use 6 SMS to fas ten the covers over the wires February 2001 Page 7 NFW NCW NFWG NCWG NFWE NCWE Tyler Refrigeration Truss Rod Adjustment Instructions The 8 or 12 span of these shelves is made possible by the use of truss rod construction Ke 58 To Floor N Truss Rods 1 Remove joint trim or shelf end caps to obtain access to truss rod adjustments 2 The truss rods on these shelves may require adjusting for maximum load con ditions For heavier loads tighten the truss rod nuts For lighter loads loosen the truss rod nuts This will prevent bow ing and or sagging in the shelving 1 lt gt Shelf End Caps or Joint Trim EE SENS Two 3 8 x 1 Nuts and bolts join 18 shel
17. ate Corner Trim 28 Corner I Bracket Screw per bracket 29 Raceway Corner Trim Screw per trim Washer per trim 30 Screw per corner cladding 31 Corner Cladding Ptd Page 26 Tyler Refrigeration NFWE NCWE 9 25833 2 9042341 2 Side 5183536 2 5216949 5216948 color per order 9025640 2 color per order 9025640 2 color per order 9025833 8 color per order color per order color per order 9025833 2 9042341 4 9041327 4 5183536 2 color per order 9300197 4 9301365 9041324 4 9023841 2 5183536 4 color per order 9025833 21 9023791 color per order 9025641 color per order color per order color per order 9300456 2 5183536 2 color per order 5183536 2 5100982 2 5183536 4 9026182 2 9300197 4 9300267 9300268 9023841 4 5183536 8 February 2001 NFW NCW NFWG NCWG Installation amp Service Manual NFWE NCWE Item Description Front Side 32 Bumper Corner Trim color per order Screw per corner trim 5183536 2 Washer per corner trim 5100982 2 33 Front Bumper Retainer Handrail color per order February 2001 Page 27
18. ffect 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 cir cuits 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 11 thru 14 will cover the NFW NCW NFWG NCWG NFWE NCWE case circuits and dual temp circuits with electric and hot gas defrost options February 2001 NFW NCW NFWG NCWG Domestic amp Export 50Hz Case Circuits POWER CONNECTION FOR OPTIONAL SUPER STRUCTURE ANTI SWEAT HEATERS ERREUR RET SEE INSTALLATION MANUAL FOR HARNESS CONNECT IONS SES NEG NC CASES d NFB NCB CASES ONLY SEE INSTALLATION MANUAL OR SUPER STRUCTURE WIRING NG NFN NCN G NFW 9028668 7 KC SE Greg SECOND REAR RISER ANTI SWEAT HEATER NFB AND NCB CASES ONLY REAR RISER DISCHARGE AIR ANTI SWEAT HEATER 2 LEFT GLASS PANEL ANTI SWEAT HEATER RIGHT GLASS PANEL ANTI SWEAT HEATER E GLASS TRIM RAIL ANTI SWEAT HEATER WWW GLASS RETAINER ANTI SWEAT HEATER WHAT E V c Li O c O LJ J c J gt L l DEFROST HEATER
19. geration Procedures 9 Optional Dual Temperature Control 9 Electrical Procedures 9 Electrical Considerations 9 Defrost Information 10 Defrost Control Chart 10 Installation Procedure Check Lists See General UL NSF I amp S Man Wiring Diagrams 10 NFW NCW NFWG NCWG Domestic amp Export 50Hz Case Circuits 11 NFWE NCWE Domestic amp Export 50Hz End Case Circuits 13 Dual Temperature Control Circuits 14 Cleaning and Sanitation See General UL NSF I amp S Manual Component Removal and Installation Instructions for Cleaning 15 Bottom AWS ee EDU E PS 15 NSF Product Thermometer 15 Discharge Air Honeycomb 15 Rear Air Duct Panels 15 Front Air Duct Panels 15 Lal RE EE 15 Frontand Rear Cladding 15 Page 2 February 2001 NFW NCW NFWG NCWG Installation amp Service Manual NFWE NCWE Page Service Instructions Preventive Maintenance See General UL NSF 165 Manual Fan Blade and Motor Replacement See General UL NSF I amp S Man Color Band and Bumper Replacement See
20. gh the EPR valve which has been preset to the desired medium tem perature 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 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 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 flow for the defrosting gas A fan delay is also connected with gas defrost to cycle the fans off but only during the medi um temperature mode Electrical Procedures Electrical C onsiderations 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 Page 9 NFW NCW NFWG NCWG NFWE NCWE Case Fan Circuit This circuit is to be supplied by an uninterrupt ed 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
21. on A plexiglas plug partition is required on adja cent electric defrost cases that are on differ ent refrigeration systems These partitions can be installed after the cases have been joined 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 February 2001 NFW NCW NFWG NCWG Installation amp Service Manual NFWE NCWE Superstructure Installation NFW NCW NFWG NCWG Merchandising Shelf Superstructures Display Height off Model Length Depth Lights Area Floor D8LFS 8 12 Std 8 sq ft 48 D12LFS 12 12 Std 12sq ft 48 D8HFS 8 18 Std 12sq ft 55 D12HFS 12 18 Std 18sq ft 55 D82FSL 8 1 12 amp 1 18 20 sq ft 58 0122651 12 1 12 amp 1 18 30 sq ft 58 12 shelf standard with lights 18 shelf lights are optional IMPORTANT Follow instructions in the numbered order l Install lower uprights 1 on end of case and secure with 3 8 16 x 1 1 4 bolts pro vided 2 After uprights are installed and secured install lower shelf 2 by inserting shelf uprights into lower upright sections 1 and securing with 3 8 16 x 1 1 2 screws wash ers and nuts 3 When furnished the upper shelf 3 is installed and secured in the same manner as the lower shelf 2 4 The internal wiring of the shelving and uprights is factory installed It is necessary to connect the provided h
22. onal parts not listed above contact the TYLER Service Parts Department February 2001 Page 21 NFW NCW NFWG NCWG NFWE NCWE Tyler Refrigeration Cladding and Optional Trim Parts List NFW NCW Item Description 8 12 1 Return Air Duct Trim 5207491 5207491 2 Screw 5145037 4 5145037 4 3 Handrail Backer 9025316 2 9025316 2 4 Screw 5145037 4 5145037 4 5 Top Rear Riser J oint Trim 5203016 5203016 6 Color Band Backer Ptd 9040223 2 9040223 2 7 Bumper Backer color per order 8 Rear Raceway Cover Support 9041327 4 9041327 4 Front Raceway Cover Support 9041324 4 9041324 4 Screw per support 5183536 8 5183536 8 9 Bumper Retainer Handrail color per order Shoulder Screw 9025833 36 9025833 52 10 Cladding Retainer 9300197 4 9300197 4 11 Raceway Cover Backer color per order 12 Raceway 9300218 9300219 13 Raceway Cover End Trim color per order per patch end 14 Raceway Cover Retainer 9023841 4 9023841 6 15 Kickplate Extension Opt color per order 16 Screw 5183536 8 5183536 12 17 Kickplate Support Assembly 9042340 4 9042340 4 18 Shoulder Screw 9025833 8 9025833 8 19 Kickplate color per order Kickplate Backer 9041790 9041790 20 Raceway Cover color per order 21 Front amp Rear Cladding 9301351 2 9301352 2 22 Bumper color per order 23 Front amp Rear Color Band Ptd 9020971 2 9
23. reaches 40 F at the fan delay klixon Anti S weat Circuit All cases have at least one anti sweat heater in each discharge air grid and return air grid When cases are equipped with an optional superstructure there is an anti sweat heater on the superstructure Cases with glass fronts have an addtional 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 Defrost Information See General UL NSF I amp S Manual for oper ational descriptions for each type of defrost control Defrost Control Chart NFW NCW NFWG NCWG NFWE NCWE Defrost Defrost Defrosts Duration Term Type PerDay Min Temp Electric FF 1 46 50 1 46 50 Gas FF 2 3 16 20 55 Gas IC 2 3 20 26 55 10 Tyler Refrigeration GD o D NFW NCW NFWG NCWG NFWE NCWE E Electric Defrost Termination F S Electric Defrost Failsafe Opt G Gas Defrost Fan Delay Dual Temp A S Glass Anti Sweat Dual Temp Most klixons are located on the end of the evaporator coil The diagram shows the loca tion for each defrost type that uses a klixon 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 e
24. ront or rear interior of case NOTE Note position of the honeycomb grid dur ing 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 February 2001 NFW NCW NFWG NCWG NFWE NCWE Rear Air Duct Panels 1 Remove bottom trays and discharge air honeycomb see this page 2 Remove 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 Corner Trim 1 See page 16 for corner trim removal instructions 2 After cleaning trim and cladding compo nents replace front and rear cladding and corner trim components in reverse order using instructions below and on page 16 Front amp Rear Cladding 1 Remove kickplates and raceway covers from front and rear of case 2 Remove screws from bottom and top of front and rear cladding and pull cladding down to remove it from behind the bottom edge of the bumper retainer 3 After cleaning replace front and rear cladding and remaining components in reverse order Page 15 N
25. sed for termination it should be set at 70 F termination temperature Used with Electronic Thermostat and EPR Control Set EPR to give this pressure at the case 60 1 8 1 8 1 8 3 8 3 8 3 8 3 8 3 8 3 8 CASE CIRCUITS 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 CASE BTUH REQUIREMENTS are calculated to produce approximately the indicated performance with absolute maximum operating ambient limits of 75 amp 55RH The information contained herein is based on technical data and tests which we believe to be reliable and is intended for use by persons having technical skill at their own discretion and risk Since conditions of use are outside Tyler s control we can assume no liability for results obtained or damages incurred through the applications of the data presented SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE Page 4 February 2001 NFW NCW NFWG NCWG Installation amp Service Manual NFWE NCWE NFW NCW NFWE NCWE Wide Island and End FF amp IC Merchandisers 120 VOLT ELECTRICAL DATA AMPS 120 VOLT LIGHTING DATA ANTI
26. store electrical power to case February 2001 Installation amp Service Manual 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 Models NFW NCW NFWG NC WG NFWE NCWE 2 Disconnect defrost heater plug 3 from junction block 4 3 Unclip and lift up fan plenum 5 4 Remove defrost heater 6 from mounting clips 7 and case 2 February 2001 NFW NCW NFWG NCWG NFWE NCWE 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 Discharge Air Grid Anti Sweat NFW NCW 1 Remove screws 1 retainer strip 2 and discharge air grid 3 from interior of the front case wall 4 2 Remove mounting screws and support assembly 5 from air grid opening 3 Disconnector cut the defective anti sweat wire 6 from the case wires 4 Remove and replace the aluminum tape and defective anti sweat wire 6 from top of support assembly 5 5 Reconnect the anti sweat wires and replace the support assembly discharge air grid and mounting hardware Page 17 NFW NCW NFWG NCWG NFWE NCWE Discharge Air Grid Anti Sweat NFWE N
27. ted suction temperature leaving the case NOTE COMPRESSOR SIZING SHOULD ALLOW FOR SUCTION LINE PRESSURE DROP THE ABOVE RATINGS ARE FOR COMPRESSOR SELECTION ONLY FOR ENERGY CALCULATION DATA REFER TO THE ENERGY SECTION FOR COMPRESSOR SIZING INFORMATION REFER TO THE GOLD SECTION 8 FOR LINE SIZING INFORMATION REFER TO THE BUFF SECTION OF THE TYLER SPECIFI CATION GUIDE 208 VOLT DEFROST AMPS e 20 24 28 32 36 44 5 3 13 8 20 6 27 6 34 4 41 2 TG 30 TG 30 TG 40 TG 50 TG 50 N A N A N A N A N A N A 24 0 30 0 36 0 30 0 36 0 36 0 42 0 30 36 36 36 36 36 36 36 36 36 N A TG 3 TG 3 TG 3 TG 3 TG 3 TG 3 TG 3 TG 3 TG 3 TG 3 TG 3 30 40 50 40 50 50 50 50 50 50 50 50 50 50 50 50 50 CASE TO CASE SUCTION LINE SUB FEED BRANCH LINE SIZING 1 3 8 1 5 8 7 8 7 8 7 8 1 1 1 1 1 1 1 1 1 8 1 8 1 8 1 8 18 1 8 3 8 3 8 8 1 1 1 1 1 1 1 1 1 5 8 7 8 7 8 DEFROST CONTROL BACKUP PRESSURE SETTINGS EPR SETTINGS DAY MODE TIME TERM om curour R22 R404 ELECT FF 46 506 FF 12 amp GR404A 2 R404A 14 52 6 R4o4a 1 R404A 8 23 HOTGAS FF 1620 MIN sse FF 14 HOT GAS IC 68 4 4 1 R404A 8 if an Electronic Sensor is u
28. ves end to end Des 4 H 3 8 Bolt OR tapped into Join to Patch End next right with Nut amp Bolt Bolt Uprights to Patch End or next Upright Case Joint Page 8 February 2001 Installation amp Service Manual Trim Installation Alignment See General UL NSF 165 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 v 2 After kickplates 1 have been installed slide kickplate corner trim 2 into both ends of the kickplates 1 Refrigeration Procedures See General UL NSF 165 Manual for gen eral system control and superheat infor mation 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 February 2001 NFW NCW NFWG NCWG NFWE NCWE 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 throu
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