Installation & Service Manual
Contents
1. 6 Defrost Control Chart satus esses cota i RAEVPu AINE wad ba RE 6 Installation Procedure Check Lists See Gen UL NSF I amp S Manual Wiring Diagrams guardo Ro S mbar 6 N3MGHPEX Domestic amp Export 50Hz Case Circuits 7 Cleaning and Sanitation Component Removal and Installation Instructions for Cleaning 8 Superstructure Shelf and Shelf Brackets 8 2 2 RR COT 12 0 LOIS t DL UL 8 Front Air DUCKS cacions 8 Rear Duct Panels ees bae ER 8 Discharge Air Honeycomb 8 Lower Cladding san sees SP 8 Front Upper Cladding 8 Side UpperGladdiny 9 Cleaning Instructions 9 Stainless Steel Cleaning Methods 9 Page 2 May 2007 Installation amp Service Manual N3MGHPEX Page General Information NSF Product Thermometer 11 Radiant Heat Information 11 Radiant Heat Measurement 12 Display Practices gau vane c ial Ra 12 Service Instructions Preventive Maintenance See General UL NSF 185 Manual Fan Blade and Motor Replacement See Gen UL NSF 185 Manual Color Ban2. Carrier A United Technologies Company REFRIGERATION sanas vanta Installation amp Service N3MGHPEX SINGLE DECK MEAT DELI CRITICAL TEMP PRODUCE HIGH PERFORMANCE END MERCHANDISERS Medium 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 11 05 DATE 5 07 NO 9809135 REV Tyler Refrigeration Niles Michigan 49120 TYLER REFRIGERATION CONTENTS Page _ Specifications N3MGHPEX 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 6 Case Pull Up Locations 6 Plumbing Procedures See General UL NSF 185 Manual Refrigeration Procedures See General UL NSF 185 Manual Electrical Procedures 6 Electrical Considerations 6 Defrost Information
3. Fluorescent Lamp Circuit Case lighting is supplied by T 8 electronic ballast lights It is controlled by a light switch in each case The standard lighting is 1 row of T 8 top lights under the top of the rear riser Anti Sweat Heater Circuit N3MGHPEX cases have four anti sweat heaters One in the top light assembly and three under the glass trim rails All anti sweat heaters are wired directly to the main power supply so they can operate at all times Defrost Information See General UL NSF 185 Manual for operational descriptions for each type of defrost control Defrost Control Chart N3MGHPEX Defrost Option Settings Defrost Defrost Defrosts Duration Term Per Day Min Temp Off Time 4 32 See specification pages in this manual for pump down adjustment variations 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 diagram on page 7 will cover the N3MGHPEX case circuits May 2007 15 N3MGHPEX Domestic 8 Export 50 2 2920 NOI Ld 65160
4. Stubborn spots and stains baked on splatter and other light discolorations May 2007 CLEANING AGENT Soap ammonia or deter gent and water Arcal 20 Lac O Nu Lumin Wash O Cedar Cream Polish Stainless Shine Allchem Concentrated Cleaner Samae Twinkle or Cameo Copper Cleaner Grade FFF Italian pumice whiting or talc Liquid NuSteel APPLICATION METHOD Sponge with cloth then rinse with clear water and wipe dry Rub with cloth as directed on the package Apply with damp sponge or cloth Rub with damp cloth Rub with damp cloth Rub with dry cloth Use a small amount of cleaner EFFECT ON FINISH Satisfactory for use on all finishes Satisfactory for use on all finishes Provides barrier film Satisfactory for use on all finishes Satisfactory for use on all finishes if rubbing is light Use in direction of polish lines on No 4 polished finish May scratch No 2 mill and No 7 and 8 polished finishes Use in direction of polish lines on No 4 polished finish May scratch No 2 mill and No 7 and 8 polished finishes Page 9 N3MGHPEX OF CLEANING CLEANING AGENT Paste NuSteel or DuBois Temp Cooper s Stainless Steel Cleaner Revere Stainless Steel Cleaner Grade F Italian pumice Steel Bright Lumin Cleaner Zud or Restoro Penny Brite or Copper Brite Heat tint or heavy Penny Brite or Copper Brite discoloration Paste NuSteel or DuBois Tem
5. generally known that the temperature of displayed meat in refrigerated cases will run higher than the circulated air temperature of the cases A dial thermometer stuck into the center of a piece of meat compared with one in the air stream quickly confirms this fact May 2007 HEATING EFFECT OF VARIOUS TYPES OF LIGHTING AND INTENSITIES ON PACKAGED MEAT IN OPEN DISPLAY CASES HEAT ADDED TO MEAT SURFACE FROM LIGHT ALONE HEAT ADDED TO MEAT SURFACE FROM LIGHT ALONE NO 50 100 150 200 LIGHT LIGHTING INTENSITY IN FOOT CANDLES AT MEAT LEVEL HOW CEILINGS OVER OPEN MEAT CASES AFFECT PACKAGED MEAT PROPER VENTILATION ABOVE THE CEILING IS THE REMEDY FOR HIGH CEILING TEMPERATURES CEILING TEMPERATURE DEGREES F CEILING TEMPERATURE DEGREES OF 2 6 8 10 12 MEAT SURFACE TEMPERATURE RISE FROM RADIANT HEAT Another fact is that the surface temperature of the meat will be higher than the center temperature due to radiant heat TYLER s ongoing research identifies sources of radiant heat and accurately measures and records it These charts were developed from the information gathered during this research Two major sources of radiant heat are from display lights and ceiling surfaces Additional heat sources come from bad display practices which either overload the case with product or allow voids in the product display Poor display practices impair the efficiency of the refrigeration adding to th
6. is utilized use the settings shown in the chart NOTE The customer will need to set EPR on the parallel rack or single unit to the appropriate suction temperature and the cases must be on a separate suction stub with a separate EPR ADD 0 54 to EPR setting for each 1000 foot rise in elevation Required setup for a conventional unit uses an electronic thermostat to assure accurate temperature control CASE CIRCUITS This case requires a 120V circuit for fans lights anti sweat heaters and defrost heater Screens are standard Case comes with a removable optional rear riser The rear riser has an adjustable non refrigerated 12 shelf 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 8 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 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 Tylers 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
7. riser on the case 2 Remove screws and carefully lower rear trim assembly 2 from top and rear riser of case 3 Disconnect or cut the defective anti sweat wires 3 from the case wires 4 Remove and replace the aluminum tape and defective anti sweat wire 3 from the back of the rear riser trim assembly 2 5 Position new anti sweat wire 3 case and secure with new aluminum tape 6 Reconnect the new anti sweat wires 3 to case wires and reinstall and secure rear trim assembly 2 and discharge air grid 1 in reverse order 7 Restore electrical power to the case Page 13 TYLER REFRIGERATION Front or Side Glass Replacement a 22 3 Remove screws 5 and glass trim rail 6 Fe 1 Pd from top of glass 4 4 Loosen rear retainer 7 and remove broken glass 4 from glass retainer assembly 8 Apply sealant tape 9 to top and bottom i If N CNN Z edge of new glass 4 7 6 Position new glass 4 in glass retainer Sa a assembly 8 and secure by tightening 1 If replacing front glass remove four rear retainer 7 screws for the top and bottom of each 7 Install glass trim rail 6 with screws 5 upper corner trim assembly 1 Lift off over top edge of new glass 4 POUTHPPEn commen MINI 1 8 Install glass joint trim 3 and or upper corner trim 1 and secure with screws 2 If replacing side glass remove upper corner joint see step 1 t
8. with neutralizer rinse and dry Rub with a cloth Organic solvents may be flammable and or toxic Observe all precautions against fire Do not smoke while vapors are present Be sure area is well ventilated TYLER REFRIGERATION EFFECT ON FINISH Use in direction of polish lines on No 4 polished finish May scratch No 2 mill and No 7 and 8 polished finishes Use in direction of polish lines on No 4 polished finish May scratch No 2 mill and No 7 and 8 polished finishes Use in direction of polish lines on No 4 polished finish May scratch No 2 mill and No 7 and 8 polished finishes Use in direction of polish lines on No 4 polished finish May scratch No 2 mill and No 7 and 8 polished finishes Use in direction of polish lines on No 4 polished finish May scratch No 2 mill and No 7 and 8 polished finishes Use in direction of polish lines on No 4 polished finish May scratch No 2 mill and No 7 and 8 polished finishes Use in direction of polish lines on No 4 polished finish May scratch No 2 mill and No 7 and 8 polished finishes Use in direction of polish lines on No 4 polished finish May scratch No 2 mill and No 7 and 8 polished finishes Excellent removal satisfactory for use on all finishes Satisfactory for use on all finishes Satisfactory for use on all finishes Satisfactory for use on all finshes Effect
9. 86 f v wave 301 934940095 38 LSNW 3SVO 71 310N MOOT 50443 SLIOA 1504130 SIDE GLASS 2 AVM3OVH NI 415901 dOMINOO 1 04334 M31V3H 1S0843Q 1 SNV OVAOCL SiV3MS il LNV OVAOZ S1H911 9N1 4 91314 aor 3314v 1003 01 SUONI SS NN GUY SNOISNSNIO TW NOISSINH3d inOHLIM 38 104 AVN GN AWO 3SN 981183381983 51 NOLIWOIOXNT ONTMVE SIHL NO NOLIVIRIOJNT SHI OL CEA 157 1139 8 1 JOHINOO 3UNLVSIdNAL SINOY19373 IVNOI 140 ED Lig G 705 fp 2VAOCL 14805 Ol OVAOZE OL QON310S SSVI9 GQ31V3H INOMJ AHL NI NO NOXI IX 31V201 4 545019 4 SN3dO NOXI DI H31V3H 1504430 431V3H 1S0343Q SIDE HEATED GLASS SYOLOW HO LVHOdVA3 N31V3H IV3MS I1NV 413HS dOl 911 473HS 901 2007 N3MGHPEX CLEANING AND SANITATION Component Removal and Installation Instructions for Cleaning Superstructure Shelf and Shelf Brackets 1 Remove product from shelf 2 Push shelf back and then li
10. d and Bumper Replacement See Gen UL NSF 185 Man Light Servicing 12 Ballast and Lighting Locations 12 Defrost Heater Replacement 18 Anti Sweat Replacement 13 Discharge Air Anti Sweat Replacement 13 Front or Side Glass Replacement 14 Parts Information Operational Parts List 15 Cladding and Trim Parts 5 5 16 TYLER Warranty See General UL NSF 185 Manual The following Single Deck High Performance Meat Deli Critical Temp Produce End Merchandiser model is covered in this manual MODEL DESCRIPTION N3MGHPEX 8 GLASS FRONT SINGLE DECK HIGH PERFORMANCE END MERCHANDISER May 2007 Page 3 TYLER REFRIGERATION SPECIFICATIONS N3MGHPEX Single Deck High Performance Meat Deli Critical Temp Produce End Merchandiser Refrigeration Data CAPACITY camen DISCHARGE AIR AVG REF EVAPORATOR UNIT SIZING CHARGE N3MGHPEX 8 MED TEMP 3 553 3900 425 423 160 194 Capacity data listed for cases with 1 row of T 8 top lights Adjustments must be made to this base rating for each option installed on this case For sizing all refrigeration equipment other than TYLER use conventional BTUH values Evaporator temperature is defin
11. de upper cladding and remaining components in reverse order Cleaning Instructions WARNING TYLER Refrigeration does not recommend the use of high pressure cleaning equipment on display cases High pressure cleaners can penetrate and or damage joint seals Damaged seals allow water leaks and or air leaks that can cause poor case refrigeration CAUTION When cleaning this case try not to introduce water into the case faster than it can be carried away by the waste outlet Liquid chlorine bleach is corrosive to metals The use of bleach or products containing bleach will damage metal surfaces and void the case warranty Sanitize the case with Quaternary Ammonium Solutions ex KAYQUAT J 512 Sanitizer SANIQUAT 512 etc approved per 21CFR 178 1010 followed by adequate draining and air drying These solutions may be obtained from Kay Chemical Co Johnson Wax Professional Coastwide Laboratories Always use a soft cloth or sponge with mild detergent and water to clean any glass Never use abrasives or scouring pads to clean glass They can scratch and or damage the glass See General UL NSF I amp S Manual for case cleaning instructions Stainless Steel Cleaning Methods The cleaning data in the following stainless steel cleaning chart was supplied by AISI The information was supplied by Prime Metals Division Alumax Aluminum Corporation TYPE OF CLEANING Routine cleaning Smears and finger prints
12. e surface temperature of the meat Bacteria and molds grow when surface temperatures rise above 45 F This prematurely discolors displayed meats and causes unnecessary meat depart ment losses Page 11 N3MGHPEX Radiant Heat Measurement Place two accurate dial thermometers side by side in a case Cover one of the thermometer stems with black friction tape The tempera ture difference is the approximate amount of radiant heat A change in display lighting or a reduction of high ceiling temperatures over 80 F could reduce the radiant heat in the case Display Practices Encourage butchers to maintain all meat below the case load lines and to eliminate product voids Case screens could be cov ered in some instances to keep the refrigerated air over 2to 6 F Voids in display raise temperature the display of package m mo of void 2 to 6 CAUTION The quality damage done to meat products by high temperatures and or contamination during delivery cooler storage cutting and wrapping cannot be repaired by placing the products into properly operating dis play cases Page 12 TYLER REFRIGERATION SERVICE INSTRUCTIONS Light Servicing See General UL NSF I amp S Manual for 8 lamp fan blade and motor and color band and bumper replacement instructions Ballast and Lighting Locations The N3MGHPEX light ballast is located behind the lower front cladding in the raceway T
13. ed as the saturated suction temperature leaving the case Air velocity measured 1 hour after defrost at the top discharge air duct using an ALNOR JR velometer with a scoop 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 Heaters 120 Volt FANS cc FANS ECM FANS ANTI SWEATS HEATER MODEL CASE DISCHARGE AIR TOTAL GLASS AMPS WATTS AMPS WATTS Lr Lee ae war fre ware 208 Volt Defrost Heater operating on a 120 Volt circuit T 8 Lighting with Electronic Ballasts 120 Volt EN LIGHTS CASE ws wams EEES Standard lighting for this case is 1 row of top lights Defrost Data DURATION SENSOR SETTINGS COMPRESSOR SETTINGS DEFROST DEFROSTS WATER 3 R22 R22 PSIG R404A PSIG DEFROST TYPE MIN CEE PSIG Psi CUT IN CUT OUT CUT IN LB DAY TMEOFF 4 32 29 F 27 F 49 62 47 36 6 47 12 All high performance cases use OFF CYCLE defrost NOTE 32 minutes is for EPR with suction stop for defrost isolation Defrost times increases by six minutes 38 min total when defrost isolation is by pump down f EPR
14. ft up and out to remove it from the shelf brackets 3 Remove shelf brackets from slots in rear superstructure uprights 4 After cleaning replace in reverse order Bottom Trays 1 Remove product from bottom of case 2 Grasp and lift out each of the bottom trays from the case interior 3 After cleaning replace in reverse order Front Air Ducts 1 Remove lower trays see this page 2 Lift out front air duct sections 3 After cleaning replace in reverse order Rear Duct Panels 1 Remove bottom trays see above 2 Remove mounting screws and rear duct panels from case 3 After cleaning replace and secure rear duct panels in reverse order Discharge Air Honeycomb 1 Loosen screws securing rear retainer plate NOTE Note position of the honeycomb grid during removal so it can be reinstalled the same way 2 Slide rear retainer plate back until the honeycomb grid sections can be removed from the top duct Page 8 TYLER REFRIGERATION AM 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 rear retainer plate and screws Corner Trim 1 Remove four screws and glass corner trim from each side of front glass 2 Remove two bottom screws and bumper corner trim from each side of front bumper 3 Remove four screws and upper cladding tri
15. he top light s are under the front of the rear riser top In order to retain safety approval with Underwriters Laboratory and the Canadian Standards Association the mounting of electrical components and interconnecting wires must not deviate from the following instructions Only qualified personnel are authorized to install the accessory items TYLER Refrigeration recommends you order all component parts from its Service Parts Department May 2007 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 7 1 Remove bottom trays 1 from 2 2 Unclip and lift up fan plenum 3 L J 3 Disconnect and remove defrost heater 4 from mounting clips 5 and case 2 4 Install new defrost heater 4 in reverse order 5 Restore electrical power to case May 2007 Anti Svveat 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 Anti Sweat Replacement 1 Remove screws retaining strip and discharge air grid 1 from rear
16. hen remove two screws 2 and glass joint trim 3 from side joint of the broken side glass 4 Page 14 May 2007 Installation amp Service Manual PARTS INFORMATION Operational Parts List Case Usage Electrical Circuit Case Size Fan Motor Fan Motor Brackets Fan Bracket Plate Fan Blades 7 20 5B Opt ECM Fan Motor Opt ECM Fan Motor Brackets Opt ECM Fan Blades 7 15 5B T 8 Ballast top light T 8 Lampholder Anti Sweat Heater Wire discharge air Opt Electric Defrost Heater Opt Electric Defrost Limit Klixon 50 40 Opt Electric Defrost Control Relay 208V NSF Product Thermometer Domestic 115 Volt 60 Hertz 8 5243498 9 5962268 9041077 5960943 9025002 8 Watt 9025005 5223891 5991029 9041897 5964643 5125153 9303208 5236978 5967100 N3MGHPEX For information on operational parts not listed above contact the TYLER Service Parts Department May 2007 Page 15 Cladding and Parts Lists Item Description 1 2 3 10 11 12 13 14 15 16 17 18 Front Color Band Ptd Front Bumper Front Glass Bumper Retainer Screw Shoulder Front Glass Corner Trim Ptd Upper Screw per corner trim Lower Screw per corner trim Bumper Corner Trim Ptd Lower Screw per corner trim Upper Cladding Corner Trim Screw per corner trim Lower Cladding Corner Trim Ptd Screw per corner trim Front Upper Cladding Ptd Front Lo
17. ive on tenacious deposites or where scale has built up Satisfactory for use on all finishes May 2007 Installation amp Service Manual N3MGHPEX Use of proprietary names is intended only to indicate a type of cleaner and does not constitute an endorsement nor is omis sion of any proprietary cleanser to imply its inadequacy It should be emphasized that all products should be used in strict accordance with instructions on package n all applications a sponge or fibrous brush or pad are recommended DO NOT use ordinary steel wool steel brushes chlorine bleach or products containing bleach for cleaning or sanitizing stainless steel GENERAL INFORMATION NSF Product Thermometer Installation 1 Unwrap the thermometer and bracket assembly shipped loose with the case 2 Position bracket in front left corner of the left most bottom tray Making sure the bracket is flush with the left edge use the bracket holes as a template for where to drill the holes 3 Drill two 196 holes in the bottom tray NOTE For ease of installation position the washers and capnuts on the top side of 4 the bracket and bottom tray 4 Mount the bracket to the bottom tray with two screws washers and capnuts Radiant Heat Information A wide temperature range is shown for each type of lighting This data does not show all situations Many situations will have higher package warm up figures than indicated It is
18. m from each side of front upper cladding 4 Remove four screws and lower cladding corner trim from each side of front lower cladding 5 After cleaning replace and secure corner trim in reverse order Lower Cladding 1 Remove front or side kickplate from kickplate supports See General UL NSF I amp S Manual 2 Remove lower cladding corner trim See corner trim instructions above 3 Remove mounting screws from top and bottom of front or side lower cladding and remove lower cladding 4 After cleaning replace in reverse order Front Upper Cladding 1 Remove front lower lower cladding see above 2 Remove all corner trim See corner trim instructions above 3 Remove front color band bumper and bumper retainer from case See General UL NSF I amp S Manual 4 Remove mounting screws from top and bottom of front upper cladding and remove front upper cladding 5 After cleaning replace front upper cladding and remaining components in reverse order May 2007 Installation amp Service Manual N3MGHPEX Side Upper Cladding 1 Remove side lower cladding See lower cladding instructions 2 Remove corner trim covering side you are removing See corner trim instructions 3 Remove side color band bumper and bumper retainer from case See General UL NSF I amp S Manual 4 Remove mounting screws from top and bottom of side upper cladding and remove side upper cladding 5 After cleaning replace si
19. p Revere Stainless Steel Cleaner Allen Polish Steel Bright Wyandotte or Zud Burnt on foods and Easy Off De Grease lt 4 696 grease fatty acids hot solution of such agents milkstone where swab as trisodium tripolyphospate bing or rubbing is not 5 15 caustic soda practical solution Tenacious deposits Oakite No 33 Dilac Texo 12 rusty discolorations Texo N Y Flash Klenz industrial atmospheric Caddy Cleaner Turco Scale stains 4368 or Permag 57 Hard water spots Vinegar and scale 5 oxalic acid 5 sulamic acid 5 10 phospheric acid or Dilac Oakite No 33 Texo 12 or Texo N Y Grease and oil Organic solvents such as carbon tetrachloride tri chlorethylene acetone kero sene gasoline benzene alcohol and chlorethane n u Page 10 APPLICATION METHOD Rub with dry cloth Use a small amount of cleaner Apply with damp sponge or cloth Rub with a damp cloth Rub with a dry cloth Use a small amount of cleaner Rub with a dry cloth Rub with dry cloth Use a small amount of cleaner Apply with a damp sponge or cloth Rub with a damp cloth Apply generous coating Allow to stand for 10 15 min Repeated application may be necessary Swab and soak with clean cloth Let stand 15 minutes or more according to direc tions on package Rinse and dry Swab or wipe with a cloth Rinse with water and dry Swab or soak with a cloth Let stand 10 15 minutes Always follow
20. wer Cladding Ptd Screws Shoulder per upr amp Iwr cladding Front Kickplate Ptd Screw Kickplate Support Screw per support Kickplate Corner Trim Ptd Screw per corner trim Side Kickplate Ptd Screw per kickplate Kickplate Support Screw per support LH Side Lower Cladding Ptd RH Side Lower Cladding Ptd LH Side Upper Cladding Ptd RH Side Upper Cladding Ptd Screw Shoulder amp upr side cladding Side Bumper Side Glass Bumper Retainer Screw Shoulder per retainer Page 16 N3MGHPEX 8 9808977 color order 9809015 9037753 16 9809090 2 5102643 2 9809196 2 9809092 2 9809196 2 9809091 2 9024814 4 9809076 2 9024814 4 9808974 9808971 9037753 13 9809062 9043080 4 9039022 4 5183536 2 5218220 2 9043080 2 9809066 2 9043022 2 9039022 4 5183536 2 9808973 9808972 9808976 9808975 9037753 8 color order 9809016 2 9037753 7 TYLER REFRIGERATION May 2007 Installation amp Service Manual N3MGHPEX N3MGHPEX Item Description 8 19 Side Color Band Ptd 9808978 2 20 LH Raceway 9808929 21 Front Raceway 9808930 22 RH Raceway 9809014 Screw per all raceways 5183536 14 20 21 822 i Not Shown 18 19 17 16 May 2007 Page 17
21. with any particular model or installed application SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE Page 4 April 2008 Installation amp Service Manual N3MGHPEX N3MGHPEX CROSS SECTION 55 1 4 36 1 4 33 1 2 gt 43 FLOOR PLAN 2 7 8 95 1 2 oo 93 3 1 2 Rear of Case 29 1 2 for Std 33 1 2 25 3 8 es Base 43 O A April 2008 Page 5 INSTALLATION PROCEDURES Carpentry Procedures Case Line Up NOTE See the General UL NSF I amp S Manual for the proper case line up procedures End Case Pull Up Locations N3MGHPEX The has six pull ups to secure it to the end of two back to back cases Pull ups and are located as shown on both sides of the case rear and should be installed and tightend starting with A and finishing with C See General UL NSF 188 Manual for line up assembly instructions 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 Page 6 TYLER REFRIGERATION NOTE The N3MGHPEX raceway houses the electrical wiring components and terminal blocks in the lower front of the case Case Fan Circuit This circuit is to be supplied by an uninter rupted protected 120V circuit The case fan Circuit is not cycled
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