Installation & Service Manual
Contents
1. 6 10551 Domestic 6 Export 50Hz Case Circuits 6 Cleaning and Sanitation See General UL NSF I amp S Manual Component Removal and Installation Instructions for Cleaning 7 SCIBBIIS ahh ace IRL S doe id 7 BOUOIi IIayS QU Behe Bad We ees 7 Discharge Air Honeycomb 7 Rear Air Duct Panels 7 Front Air Ducts Panels uu uc uev e eu ace v ao ep e CE Cd 7 Base Access Panel 4 7 Plexiglas Care 7 ur V os 7 Soe nla Se eier 7 2 2004 Installation amp Service Manual LDSSI Page General Information NSF Product Thermometer Installation 8 Radiant Heat Information 8 Radiant Heat Measurement 8 Display Practices ciues diets x WA See eee hee eee Bae EMG 8 Service Instructions Preventive Maintenance See General UL NSF I amp S Manual Fan Blade and Motor Replacement See General UL NSF I amp S Man NSF Product Thermometer Replacement 9 Perimeter Plexiglas Replacement 9 Bumper Replacement 10 Lower Access Panel2. SERIES Installation amp Service Manual LDSSI SELF SERVICE DELI ISLAND MERCHANDISER 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 1999 PRINTED IN Specifications subjectto REPLACES ISSUE PART IN U S A change without notice EDITION DATE 5 04 No 9805002 REV Tyler Refrigeration Niles Michigan 49120 LDSSI Tyler Refrigeration CONTENTS Page Specifications 0551 Specification Sheets 4 Line Sizing Requirements See General UL NSF I amp S Manual Pre Installation Responsibilities See General UL NSF I amp S Manual Installation Procedures Carpentry Procedures 5 Plumbing Procedures See General UL NSF I amp S Manual Refrigeration Procedures See General UL NSF I amp S Manual Electrical Procedures 5 Electrical Considerations 5 Defrost Information 5 Defrost Control Chart 5 Installation Procedure Check Lists See General UL NSF I amp S Man Wiring Diagrams
3. CASE WATTS WATTS AMPS WATTS L ues os 220 NA w 02 ws oss so wa WA Defrost Data EPR SETTINGS DEFROSTS DURATION TERMINATION DEFROST WATER DEFROSTTYPE PERDAY TIME MIN CF EH LB FT DAY meo 4 69 4 o Set EPR to give this pressure at the case LDSSI CROSS SECTION 48 5 8 37 1 4 34 314 LDSSI FLOOR PLAN 8 Case 96 12 Case 144 8 52 12 Base 130 7 1 8 21 1111111111121221212112 211211211112211111111111112 1 Teer Refrigeration Stub ups Electrical Stub ups j rm 48 5 8 i Case e UL SANITATION approved in accordance with ANSI NSF 7 12 Base 72 CASE BTUH REQUIREMENTS are calculated to produce approximately the indicated entering air temperature with absolute maximum operating ambient limits of 75 F amp 55RH The information contained herein is based on technical data and tests that we believe are reliable and is intended for use by persons having technical skill at their own discretion and risk Since conditions of use are outside of Tylers control we cannot assume any liability for results obtained or damages incurred through the applications of the data presented SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE Page 4 May 2004 Installation amp Service Manual IN
4. Removal 10 Parts Information Operational Parts List 11 TYLER Warranty See General UL NSF I amp S Manual The following Medium Temperature Self Service Deli Island Merchandiser models are covered in this manual MODEL DESCRIPTION LDSSI 8 SELF SERVICE DELI ISLAND MERCHANDISER LDSSI 12 SELF SERVICE DELI ISLAND MERCHANDISER May 2004 Page 3 LDSSI Tyler Refrigeration SPECIFICATIONS LDSSI Self Service Medium Temperature Deli Island Merchandisers Refrigeration Data CAPACITY BTUH FT DISCHARGE AR AVG REF CASE EVAPORATOR UNIT SIZING TEMPERATURE VELOCITY CHARGE MODEL LENGTH PARALLEL CONVENTIONAL CF onz wore we m For sizing all refrigeration equipment other than TYLER use conventional BTUH values Evaporator temperature is based on the saturated pressure leaving the case Air velocity measured 1 hour after defrost at the discharge air duct using an ALNOR JR velometer with a scoop This is an average refrigeration charge per foot based on R22 and R404A refrigerant usage FOR SPECIFIC COMPRESSOR SIZING AND OR LINE SIZING INFORMATION REFER TO THE GOLD AND OR BUFF SECTIONS IN THE TYLER SPECIFICATION GUIDE Electrical Data Fans and Heaters 120 Volt TOTAL TOTAL TOTAL STANDARD FANS ECM FANS ANTI SWEATS 120V CASE FANS DISCHARGE AIR LENGTH
5. a clean damp chamois or clean soft cloth Waxing Wax should be applied in a thin even coat and brought to a high polish by rubbing lightly with a dry clean soft cloth Excessive rubbing may cause scratching and or buildup an electrostatic charge which attracts dust and dirt to the surface Electrostatic charge can be removed by blotting acrylic surface with a clean damp cloth Page 7 LDSSI GENERAL INFORMATION NSF Product Thermometer Installation Product Thermometer Install and secure a new product thermome ter with two screws below the return air duct on the left end of the case Radiant Heat Information 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 5 150 200 250 LIGHT LIGHTING INTENSITY IN FOOT CANDLES AT MEAT LEVEL HOW CEILINGS OVER OPEN MEAT CASES AFFECT PACKAGED MEAT lt RADIANT HEAT CEILING TEMPERATURE DEGREES F CEILING TEMPERATURE DEGREES F MEAT SURFACE TEMPERATURE RISE FROM RADIANT HEAT 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 generally known that the temperature of displayed meat in refrigerated cases will run higher than the circulated air temperature of Page 8 Tyle
6. strip from rear interior of case NOTE Note position of the honeycomb grid during removal so it can be reinstalled the same way 2 Remove honeycomb grid sections from the 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 Rear Air Duct Panels 1 Remove screens bottom trays and dis charge air honeycomb see this page 2 Remove mounting screws from rear duct panel 3 After cleaning replace in reverse order May 2004 LDSSI Front Air Duct Panels 1 Remove screens and bottom trays see this page 2 Remove screws and front air duct panels from case 3 After cleaning replace in reverse order Base Access Panel NOTE Note position of the base access panel during removal so it can be reinstalled the same way 1 Remove screws and base access panel from lower front section of the case 2 After cleaning base access panel and under the case replace the base access panel and secure with screws Plexiglas Care Cleaning CAUTION DO NOT use paper towels soft cloths sponges or chamois to clean plexiglas These materials will scratch the acrylic surface Clean with lukewarm water and plenty of nonabrasive soap or detergent Use only bare hand to dislodge any caked on dirt Lightly dry with
7. STALLATION PROCEDURES Carpentry Procedures The LDSSI models do not require any specific carpentry procedures The cases are shipped as complete islands Make sure the floor is level where the cases are to be installed Electrical refrigeration and drain access should be located under the cases After island case is installed install the bottom trays the case screens and the base access panel Refrigeration Procedures See General UL NSF 165 Manual for general system control and superheat information Electrical Procedures Electrical Considerations CAUTION Make sure all electrical connections are tight This prevents burning of electrical terminals and or premature component failure NOTE The electrical box behind the base access panel houses the electrical terminal block and wiring for the case The electrical box covers will be shipped loose Case Fan Circuit This circuit is to be supplied by an uninter rupted protected 120V circuit The case fan circuit is not cycled May 2004 LDSSI 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 Temp Min Off Time 4 40 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 Nation
8. al 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 6 covers all the LDSSI case circuits Page 5 LDSSI Domestic amp Export 50Hz Case Circuits 8 amp 12 Island Cases VEU CFACIN GIO SMS L SAN 11y JLON LVNS3INI ZHOG 5 ZHO9 OVAOCL 16 2 Mad 8 148 36 2 1421 OOTI SNOISIAZY Trew G3HSINI3 OL Alady 32S Mort SSIINN SIHONI NI DN SNO A eae LOCHLIN aen AWO an 98183381983 EXE 5 NO NOI SHOLON NOl1V3OdVA3 May 2004 Page 6 Installation amp Service Manual CLEANING AND SANITATION Component Removal and Installation Instructions for Cleaning Screens 1 Remove product from screens 2 Push screens back until front screen tabs clear the holes in the front duct 3 Remove screens from holes in rear duct panels and from case 4 After cleaning replace in reverse order Bottom Trays 1 Remove product and screens from case See this page 2 Grasp and lift out each of the bottom trays from the case interior 3 After cleaning replace in reverse order Discharge Air Honeycomb 1 Remove screws and bottom retainer
9. ature product voids Case of package in front of void 2 to 6 screens could be cov ered in some instances to keep the refrigerat ed air over the display 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 display cases May 2004 Installation amp Service Manual SERVICE INSTRUCTIONS See General UL NSF 165 Manual for fan blade and motor replacement NSF Product Thermometer Replacement Product Thermometer Am AAA I 1 Remove two screws and the product thermometer from location below the left front return air duct on the case 2 Install and secure the new product thermometer with two screws on the case in the same location as it was previously installed Perimeter Plexiglas Replacement Perimeter plexiglas comes in four sections Each section runs the top perimeter of 1 4 of the case After installation the four sections are adhered together into one piece 1 Carefully cut apart sections of plexiglas at the joints Remove broken or damaged plexiglas CAUTION Make sure ends of adjoining plexiglas are clean and dry 3 Using a sanding block sand all adjoining edges of plexiglas to ensure smooth even edges 4 Measure and cut replacement section of the plexiglass if necessary to approxi mately 1 4 longer then opening B
10. drain and or refrigeration lines to this caes They also provide access for cleaning under the case 1 To remove a lower access panel remove six screws and lower access panel 1 from the base 2 of the case 2 After completing case maintenance and or cleaning under the case replace the lower access panel 1 and secure to base 2 with screws May 2004 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 00 15 5B Opt ECM Fan Motor Opt ECM Fan Motor Brackets Opt ECM Fan Blades 7 00 20 5B NSF Product Thermometer Domestic 115 Volt 60 Hertz 8 5125532 5 Watt 5962269 9041077 5223891 9025002 8 Watt 5205005 5960943 5967100 12 5125532 5 Watt 5962269 9041077 5223891 9025002 8 Watt 5205005 5960943 5967100 LDSSI For information on operational parts not listed above contact the TYLER Service Parts Department May 2004 Page 11
11. il smooth 9 Repeat step 8 using Novus brand fine scratch remover 2 10 Polish the finish area using a clean soft cloth and Novus brand Plastic Clean and Shine 1 Page 9 LDSSI Bumper Replacement 4 1 BUMPER 2 1 Find the bumper joint and one end of the bumper 1 until it start to release from the bumper retainer 2 2 Grasp the loose end of the bumper 1 and pull firmly to peel bumper 1 off the bumper retainer 2 3 Use old bumper as a guide to cut new bumper to the proper length 4 Starting at one end snap the new bumper 1 onto the bumper retainer 2 CUT OFF MEASURE amp REMAINING MARK SECOND LENGTH ON BUMPER 1 4 SECOND LONGER THAN BUMPER BUMPER JOINT FIRST BUMPER SECOND BUMPER 5 If more than one piece of bumper needs to be used to completely go around the case measure and cut the second piece of bumper 3 1 4 longer than the remaining space between the bumper ends Page 10 Tyler Refrigeration NOTE The center of the second piece of bumper may need to be snapped into place with a wooden block and a hammer 6 Starting at both ends and working towards the center snap the second piece of bumper 3 onto the bumper retainer 2 NOTE Bumpers will shrink when the cases are at operating temperature Lower Access Panel There are two lower access panels on this case one on the front base and one on the rear base Both of these panel provide access to the
12. lock sand edges to make sure they are even and smooth May 2004 LDSSI 5 Position and align new section of plexi glas in the opening and set bottom of plexglas in lower track CAUTION Avoid cement touching clear plexiglas sur faces If contact occurs the surface will scar and the final appearance may be unsatisfactory 6 Using a downing fixture align the top edge of plexiglas joint seam Carefully apply acrylic adhesive Weldon 1802 to joint seam from the outside surface of the plexiglas Let adhesive dry for 5 minutes 7 Using the same downing fixture drill a 1 4 hole through the top of the plexigals joint seam Remove the downing fixture 8 Apply acrylic adhesive to 1 4 acrylic dowel pin and insert the pin in top hole Let acrylic adhesive dry for 5 minutes then cut off excess dowel pin and file smooth Plexiglas Finishing Procedure 1 If joint seam of plexiglas does not match perfectly grind uneven seam with 36 grit disc until seam is even The finish area should be approximately 4 inches wide 2 Dry sand using 80 grit sand paper Increase width of finish area approximate ly 1 4 on each side 3 Repeat step 2 using 280 grit sand paper Repeat step 2 using 400 grit sand paper 5 Wet sand finish area using 800 grit sand paper 6 Repeat step 5 using 1000 grit sand paper 7 Repeat step 5 using 1500 grit sand paper 8 Using a buffer apply Novus brand heavy scratch remover 3 unt
13. r Refrigeration 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 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 the 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 department losses 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 2 to 6 F Encourage butchers to maintain all meat below the case load E lines and to eliminate Voids in displayraise surface temper
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