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Installation & Service Manual

1. The following Medium Temperature Self Service Cheese Deli Wedge Merchandiser models are covered in this manual MODEL DESCRIPTION NNG9OIS 90 INSIDE GLASS FRONT CHEESE DELI WEDGE MERCHANDISERS NNG900S 90 OUTSIDE GLASS FRONT CHEESE DELI WEDGE MERCHANDISERS Page 2 April 2008 Installation amp Service Manual NNG CORNER CASES SPECIFICATIONS NNG Self Service Medium Temp Cheese Deli Wedge Specifications Refrigeration Data CAPACITY BTUH CS BTUH CS DISCHARGE AIR AVG REF CASE EVAPORATOR TEMPERATURE VELOCITY CHARGE MODEL LENGTH PARALLEL CONVENTIONAL er EC LBS CS MED TEMP For sizing all refrigeration equipment other than TYLER use conventional BTUH values Evaporator temperature is based on the saturated pressure leaving the case Air velocity measured 1 hour after defrost at the rear 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 TOTAL TOTAL DISCHARGE AIR FANS ECM FANS ANT SWEAT FANS EE E wans ws wans ws wans opes NNG900SA __ 64 014 170 Defrost Data BACKUP PRESS
2. 5 After cleaning replace lower cladding support brackets front upper cladding and remaining front components in the reverse order April 2008 Installation amp Service Manual SERVICE INSTRUCTIONS See General UL NSF 145 Manual for fan blade amp motor and color band amp bumper replacement instructions Connecting the Refrigeration Piping and Components WARNING Be sure to position a flame and heat resistent shield over the bottom of the case liner Heat from brazing could damage the liner and or cause personal injury or death from fire f Remove screws and refrigeration piping cover from the left bottom of the case Position loose refrigeration piping and or optional valves between the open lines in the bottom and upright of the case NOTE Make sure all sensor and thermostat wires are clear of areas being heated Mount all refrigeration lines off the floor to allow for cleaning access Apply flux to all joint ends Starting at one end thoroughly heat each new pipe joint and braze it together Repeat this process until all new pipe joints have been brazed After piping has cooled route and con nect thermostat and sensor wires through openings in the bottom of the case January 2006 NNG CORNER CASES Front Glass Replacement Remove screw 1 and glass joint trim 2 from both joints of the broken glass 3 Remove screws 4 and glass trim rail 5 from top of glass 3 Loosen
3. Z Carrier A United Technologies Company TYLER REFRIGERATION Series Vantage Installation amp Service NNG900S NNG CORNER WEDGE CASES INSIDE OUTSIDE SELF SERVE CHEESE DELI CORNER MERCHANDISERS Medium Temperature Refrigerated Corner Display Cases This manual has been designed to be used in conjunction with the General UL NSF Installation amp Service Manual Save the Instructions in Both Manuals for Future Reference This merchandiser conforms to the American National Standard Institute amp NSF International Health and Sanitation standard ANSI NSF 7 2003 PRINTED IN Specifications subject to REPLACES ISSUE PART IN U S A change without notice EDITION 1 06 DATE 4 08 NO 9037175 REV Tyler Refrigeration Niles Michigan 49120 TYLER NNG CORNER CASES REFRIGERATION CONTENTS Page _ Specifications NNG Corner Case Specifications 3 Line Sizing Requirements See General UL NSF 1 5 Manual Pre Installation Responsibilities See General UL NSF 1 5 Manual Installation Procedures Carpentry Procedures 5 Case Line Up and Pull Up Locations 5 Trim amp NSF Thermometer Installation 6 Electrical Procedures 6 Electrical Considerations 6 Case Fan Circuit 6 Plumbing Pr
4. 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 all the NNG IS and NNG OS corner case circuits April 2008 ircuits NNG Domestic amp Export 50 Hz Corner Case C 98506 sees sv LEEREN CARE ONN 50 X09 206 0 1 SYM WYX9Y10 mm 031938300 90 15 IV3JASIINV 300 15 11 8 311 ONILNNOW 3 1 QJO0N OHOD 38 ISAW 53579 311 12 8 OL S3MIM WIHL 440 102 LVYNYSILNI ZHOS OVAOCC aNnOS9 3NVd NV Qo rw AcOH W313v iuvd G3HSINI4 01 SNOISNSNIG NOISSHV43d 100HitM 2350 39 LON AYN ONY JSN DNIN33N ON3 YOJ S NOFLYPRIOINI ONIMYEG SIHI NO 3HL OL TY SAIVT NOILYM3OIHA3H M33AL 7 GISLAO 06 Yad n 3015 1 06 Yad 1 SYOLON M31V3H IV3MS INV NIV 39 9510 Page 7 January 2006 CORNER CASES CLEANING AND SANITATION Component Removal and Installation Instructions for Cleaning Lower Trays and Screens 1 Remove product from the case
5. 2963 9450316 9450369 11 CORNER CASES Operational Parts List Case Usage Domestic Electrical Circuit 115 Volt 60 Hertz Case Size 90415 Fan Motor 5125532 5 Watt Fan Motor Brackets 5213132 Fan Bracket Plate 9041077 Fan Blades 6 21 9015 5105621 6 35 5B NNG900S Anti Sweat Heater Discharge Air 9403434 NSF Product Thermometer 5967100 TYLER REFRIGERATION Domestic 115 Volt 60 Hertz 90 OS 5125532 5 Watt 5213132 9041077 9450091 9403434 5967100 For information on operational parts not listed above contact the TYLER Service Parts Department Page 12 April 2008
6. IGERATION Discharge Grid Replacement Remove screws 1 lower grid retainer 2 and discharge grid 3 Replace discharge grid 3 and lower grid retainer 2 and secure with screws 1 April 2008 Installation amp Service Manual PARTS INFORMATION Cladding and Optional Trim Parts List Item Description Upper Rear Panel Card Molding Bumper Joint Trim Color Band Painted Bumper Bumper Retainer Upr Front Cladding Joint Trim RH Upr Front Cladding Joint Trim LH Upper Front Cladding Lwr Front Cladding Joint Trim Std Lwr Front Cladding Joint Trim Opt 10 Lower Front Cladding Std Lower Front Cladding Opt 11 Front Cladding Support Std Lwr Front Cladding Support Opt 12 Kickplate Joint Trim 13 Kickplate Assembly Std 14 Pipe Leg Std 1 5 X 9 75 Pipe Leg Opt 1 5 X 6 00 15 Electrical Box Cover Painted oc 25 o m Screw 16 NSF Product Thermometer 17 Rear Base Close off for 52CH Opt Rear Base Close off for 48CH January 2006 NNG CORNER CASES 90 IS 90205 9455130 9450692 9455171 9450671 color per order 9455154 9450675 color per order 9452901 9450388 9453655 9450863 9453651 9450864 9452890 9450336 9450837 9450836 9452889 9450335 9450813 9451029 9451029 9451030 9453645 9451025 9452885 9450315 9024894 4 9024894 4 9024893 4 9024893 4 5968093 5968093 9024814 2 9024814 2 5967100 5967100 945
7. URE SETTINGS EPRSETTINGS DEFROSTS DURATION TERMINATION R404A DEFROST WATER DEFROST TYPE PER DAY TIME MIN TEMP F CUT OUT psig LB FT DAY TIME OFF CHEESE 6 28 40 R22 30 R22 43 56 TIME OFF DELI 6 28 354 R22 25 R22 38 50 Used with electronic thermostat and EPR control Set EPR to give this pressure at the case TEMPERATURE CONTROL can be achieved by a thermostat suitably sized EPR or Low Pressure Control The Discharge Air Thermostat should be set at 28 F CUT IN the EPR set at 43 R22 and Low Pressure Control see table NSF CERTIFIED to meet ANSI NSF 7 CASE BTUH REQUIREMENTS are calculated to produce approximately the indicated performance with absolute maximum operating ambient limits of 75 F amp 55RH The information contained herein is based on technical analysis and or tests performed in a controlled lab environment that are consistent with industry practices and is intended 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
8. application SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE April 2008 Page 3 TYLER NNG CORNER CASES REFRIGERATION NNG WEDGE CROSS SECTION 35 to Top of Partition 20 29 6 5 16 6 5 16 14 7 16 30 3 4 This drawing shows the dimensions for the NNG90OS Width and depth dimensions will vary on other wedge cases See floor plan views for specific width and depth dimensions NNG WEDGE FLOOR PLANS NNG90IS 71 5 8 Sucti 3 8 Liquid 18 3 8 Front of Case Page 4 April 2008 Installation amp Service Manual NNG CORNER CASES INSTALLATION PROCEDURES WARNING Corner cases are not intended as stand alone commercial refrigerated merchandis ers They must be bolted to the adjoining case s to provide stability Failure to do so could result in product damage and or possible personal injury Carpentry Procedures Case Line up and Pull Up Locations Before starting the case line up review the store layout floorplans and survey the areas where case line ups are going to be installed WARNING Corner cases can be very heavy and 3 Position corner case at end of case possibly top heavy before they are line up so front bumpers and case secured in a line up Always use a lifting pull ups line up device to remove case from skid and two 4 Adjust legs inserts in bottom of legs 1 or more people to move and position case u
9. int trim 3 and kickplate joint trim 4 The NSF product thermometer and bracket assembly 5 is shipped loose with the case After removing the thermometer and bracket assembly from the shipping packaging position it on the inside of the front bottom left cutout in the partition Secure bracket to partition with two screws Electrical Procedures Electrical Considerations CAUTION Make sure all electrical connections at components and terminal blocks are tight This will prevent burning of electrical terminals and or premature component failure NOTE The electrical components are located in the electrical terminal box at the right front of the case behind the lower front cladding Page 6 TYLER REFRIGERATION Case Fan Circuit This circuit is to be supplied by an uninter rupted protected 120V circuit The case fan Circuit is not cycled during defrost on any of these models Anti Sweat Circuit A discharge air anti sweat heater is located in the bull nose It is wired directly to the main power supply so it can operate at all times Defrost Information See General UL NSF 1 5 Manual for operational descriptions for Off Time defrost control Defrost Control Chart Defrost Defrost Defrosts Duration Term Type Per Day Min Temp Off Time 6 28 WIRING DIAGRAMS ELECTRICIAN NOTE OVERCURRENT PROTECTION 120V circuits should be protected by 15 or 20 Amp devices per the requirements noted on
10. interior 3 Grasp and lift out each lower tray or screen from the bottom of the case 4 After cleaning replace in reverse order Front Air Ducts 1 Remove lower trays or screens see this page 2 Lift out front air duct sections 3 After cleaning replace in reverse order Rear Air Ducts 1 Remove lower trays or screens see this page 2 Remove mounting screws from rear air duct 3 Lift out rear air duct sections 4 After cleaning replace in reverse order Front Lower Cladding 1 Remove screws kickpate corner trim and lower cladding corner trim Remove the front kickplate Remove bottom screws and pull down front lower cladding to clear top tabs from front upper cladding Remove front lower cladding from case 4 After cleaning replace front lower cladding by inserting top tabs in front upper cladding and secure it with bottom screws Replace front kickplate Page 8 TYLER REFRIGERATION Front Upper Cladding 1 Remove front lower cladding See this page 2 Remove screws bumper joint trim and upper cladding joint trim from front corners of the case 3 Remove color band bumper and bumper retainer from the case See General UL NSF 145 Manual NOTE Lower cladding support brackets will come off when bottom screws are removed from front upper cladding 4 Remove screws from bottom and sides of front upper cladding and remove lower cladding support brackets and front upper cladding
11. ocedures See General UL NSF 1 5 Manual Refrigeration Procedures See General UL NSF 1 5 Manual Defrost Information 6 Defrost Control Chart 6 Wiring Diagrams 6 NNGIS NNGOS Dom amp Exp 50Hz Corner Case Circuits 7 Cleaning and Sanitation 8 Component Removal and Installation Instructions for Cleaning Lower Trays POP 8 Front Air Ducts Rea be 8 Hear Air Ducts 8 Front Lower Cladding 8 Front Upper Cladding 8 Cleaning Instructions See General UL NSF 1 5 Manual Service Instructions Preventive Maintenance See General UL NSF 1 5 Manual Connecting the Refrigeration Piping and Components 9 Front Glass Replacement 9 Anti Sweat Heater Replacement 10 Discharge Grid Replacement 10 Fan Blade and Motor Replacement See Gen UL NSF I amp S Manual Color Band amp Bumper Replacement See Gen UL NSF I amp S Man Parts Information Cladding and Optional Trim Parts List 11 Operational Parts List 12 TYLER Warranty See General UL NSF 1 5 Manual
12. p to 1 1 2 to align and level pull ups Improper handling of these cases could and bumpers Push corner case tight result in product damage and or personal against case line up CAUTION Do not drill or use other holes through the case end for pull ups This may deform the case ends and could cause joint leaks and or poor refrigeration 5 Secure corner case to case line up by installing pull up bolts and mounting hardware 2 at pull up locations A amp B NOTE Do not tighten any pull up hard ware until all of it has been installed Tighten all pull up hardware equally starting at point A and finishing at point B Do not overtighten 1 Apply two heavy beads of caulking compound from the Filler Kit to the ends 6 Install lower front cladding support 3 to of the adjoining cases at dotted and foam body with screw dashed lines Proper caulking provided good case refrigeration and sanitation 7 Install lower front cladding 4 and secure to upper front cladding and lower front cladding support 3 with screws 2 Using an appropriate lifting device lift corner case from skid and install four pipe legs Lower corner case to floor June 2004 Page 5 CORNER CASES Trim amp NSF Thermometer Installation The joint trim and mounting hardware are shipped loose Trim includes bumper joint trim 1 front upper cladding joint trim 2 front lower cladding jo
13. rear retainer 6 and remove broken glass 3 from glass retainer assembly 7 Apply sealant tape 8 to top and bottom edge of new glass 3 Position new glass 3 in glass retainer assembly 7 and secure by tightening rear retainer 6 Install glass trim rail 5 with screws 4 over top edge of new glass 3 Install glass joint trim 2 with screw 1 over the joint areas of glass 3 Page 9 CORNER CASES Anti Sweat Heater Replacement Discharge Air WARNING Shut off or disconnect power supply to case before changing an anit sweat Electrical power from wire ends could damage other components and or cause personal injury or death 1 Remove screws 1 and card molding 2 from front of rear riser 2 Remove screws 3 upper rear riser trim 4 and insulation 5 from top of rear riser 3 Disconnect or cut the defective anti sweat wire 6 from case wires 4 Remove the aluminum tape and defective anti sweat wire 6 from the lower riser trim 7 5 Position new anti sweat wire 6 on the lower riser trim 7 and secure with aluminum tape 6 Connect or splice the new anti sweat wire 6 to the case wires 7 Position the insulation 5 on the lower riser trim 7 8 Install the upper rear riser trim 4 on top of rear riser with screws 3 9 Install card molding 2 on front of rear riser with screws 1 10 Restore electrical power to case Page 10 TYLER REFR

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