Installation & Service Manual
Contents
1. 3 d L i i S E i 2 i e E ET Shee ag un Seg Ze H Ze Gel Bh d d SS EE X Wee Hf gl 3 IN EACH COLUMN Se 2 OPTIONAL LIGHTED SHELVING B i 12FT CASES 3 ROWS 9 SHELVES See 2 28 trr HCH SCH i i FAN MOTORS 3 PER 12FT CASES t To July 2007 Page 15 NOTE LPFDT Domestic amp Export 50 Hz Case Circuits 6 and 8 Cases suna H 9803167 HB esse CA 120VAC POWER OUTLETS INTERIORTOP LIGHTS WIRE NUT UNUSED BLU YEL WIRE o S as ee a N WIRE NUT UNUSED BLU YEL WIRE suo dace N oe a gt a0 TOP zeen LL LOWER CASE t CHE e Ch Page 16 April 2007 i FAN Pane a FN 8 E 2 LM Se S TEA aT ERE g X S HERE NEN E E 3 gas S89 SHELVES TG LIGHT CORREC TOY a 2488 g 7 JN EACH COLUMN P 3 M e n OPTIONAL LigHTED uti ING BFT CASES 3 ROWS 5 SHELVES 2 4 E 5 miS 3 SCH n S a 2 4 i E NOTE LPFDT Do2. 45 114 iL a 5 1 2 2 1 2 k 53 1 4 FLOOR PLAN E I 72 1 4 for 6 case 96 3 8 for 8 case 14 or 144 1 2 for 12 case Add 1 1 2 for Standard Ro Base Legs R Patch End p SS e Rear Storage Cabinet gets os 4e 53 114 zen MAIN Refrigeration T D OA pate are 5 8 Suction M Nes sil Base 3 8 Liquid 1 PVC 8 Waste Outlet Front of Case July 2007 Page 5 TYI LPFMT LPFDT REFRIGERATION M LPFDT Combination Merchandisers with Blower Coil Top Dome Refrigeration Data CASE CAPACITY BTUH FT DISCHARGE AIR Capacity data listed for cases with 1 row of T 8 Dome Lights 1 row of T 8 Canopy Lights and 2 rows of optional lighted shelves If case has unlighted shelves DEDUCT 20 BTUH FT per row of unlightod shelves on the case Evaporator temperature is based on the saturated pressure leaving tho case Air velocity measured 1 hour alter defrost at the dome top discharge or at the discharge grid above the top shell 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 120 Volt TOTAL STANDARD FANS LPFDT 232 1920 LPFDT 232 1920 LPFDT 318 2880 Tola fans include 2 dome top ans and 2 call sore fans for 6 and 8 cases and
3. to top of case with three stainless steel screws 3 in the front top edge and 4 swedge bolts 4 through the reinforcement and bracket into the back of the case NOTE Make sure the scale shelf stays level during the scale shelf support installation 3 Install the scale shelf support 5 under the rear center of the scale shelf 1 and secure it to the rear center mullion 2 with two swedge bolts 6 The support is not mechanically attached to the scale shelf Radiant Heat Information t Fy RADIANT sm HEAT m 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 the cases A dial thermometer stuck into the Page 23 LPFMT LPFDT 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 he
4. 1 1 2 a for Standard en P Palch End CTR Base to RR Base Legs 4B A Refrigeration e OA seier 5 8 Suction Drain 3 8 Liquid 1 PVC ira Waste Outlet Front of Case April 2007 Page 7 LPFMT LPFDT Pre Installation Check List WARNING These cases are very heavy and require two or more people to unload move position and or install them Improper handling of these cases could result in personal injury NOTE Cases with legs are shipped to stores on skids under the base frame Cases should be unloaded and moved by one of the conventional methods All cases containing glass MUST be stored and installed on level surfaces to avoid possible product damage and or glass breakage 1 Check for hidden damage while unloading and unpacking of the case 2 Check the shipped loose parts for any items such as legs shelves nuts and bolts caulking access doors etc 3 Check the equipment remove the screws used to hold down the deck pans during shipping Remove the pans and check the following if applicable Remove all packing material Check all flare nut connections for tightness Check all fan bracket bolts for tightness Check all electrical plug in connections for positive seal 8 Make sure the expansion valve feeler bulb is securely attached to the suction line 9 All field wiring and plumbing MUST conform to national state and local codes 10 Do not remove plugs from fl
5. Circuits 6 8 amp 12 Cases Cleaning and Sanitation Component Removal and Installation Instructions for Cleaning Dome Top Lower Trays isis sss meyer ehh eas Dome Top Front Air Ducts LPFDT Dome Top Rear Air Ducts LPFDT Dome Top Mullion Covers Lower Shelves and Shelf Brackets Lower Bottom Trays and Screens Lower Front Air Ducts Lower Rear Duct Panels w o Shelf Light Sockets with Shelf Light Sockets See General UL NSF I amp S Manual See General UL NSF I amp S Manual Page 2 April 2007 Installation amp Service Manual LPFMT LPFDT Lower Discharge Air Honeycomb Lower Front Cladding Cleaning Instructions Stainless Steel Cleaning Methods General Information Rear ig Door Removal and Installation Top Mounted Scale Shelf Installation Radiant Heat Information Service Instructions Preventive Maintenance See General UL NSF I amp S Manual Fan Blade amp Motor Replacement See Gen UL NSF I amp S Manual Connecting the Refrigeration Piping and Components 24 Light Servicing Ballast and Lighting Locations Lift Glass Replacement Lift Glass Gas Piston Replacement Lower Front Glass Replacement Parts Information TYLER Warranty Cladding and Trim Parts List Operational Parts List The following Medium Temperature Lift Front Straight Glass Service Self Service Meat Seafood Deli Combination Merchandiser model
6. Solenoid Valve Liquid Line Solenoid Valve Hand Electronic Thermostat Valves Located Next to Case Ballast Box Page 11 LPFMT LPFDT Setting the Electronic Thermostat LPFMT Top Dome 1 Remove the four screws and cover from the electronic thermostat 2 Connect sensor wires to the common COM and sensor SEN terminals of the terminal strip located at the top left of the printed circuit board The sensor leads are interchangeble Heating Cooling Mode psa fo foo Heat uwexlo 55 cutout egen at Setpoint KE N Kaypad Lock N i T unlock N 3 Set the Heating Cooling jumper blocks to the COOL position 4 Setthe Cut in at Setpoint Cut out at Setpoint jumper blocks to the Cut out at Setpoint position 5 Set the Keypad Locked Unlocked jumper blocks to the Unlocked position 6 Replace the electronic thermostat cover and secure with four screws Page 12 FalvenhetiCelsius Symbol Healing Cooling Leo Up Button 7 To adjust the setpoint a Push the Menu Button SP will flash on the LCD display b Push the Menu Button one more time and a setpoint temperature will be displayed c Push the Up or Down Button until the desired setpoint is displayed LPFMT Top Dome 20 F d Push the Menu Button 8 To adjust the differential a Push the Menu Button SP will flash on the LCD display b Push the Down Button until D
7. beginning any work involving gas pistons Do not attempt to alter a gas piston in any way Do not expose a gas piston to excessive heat Dispose of gas piston as soon as possible after removal Let Center Right Glass suoni Panel Assemblies Hinge Each lift glass panel uses two gas pistons and two hinges to support it Examples 6 amp 8 cases have 2 lift glass panels mounted on 3 support assemblies with 4 hinges and 4 gas pistons 12 cases have 3 lift glass panels mounted on 4 support assemblies with 6 hinges and 6 gas pistons 1 Have an assitant lift and hold the glass in the full UP position Note position and relationship of all glass lift components 2 While lift glass is being held open Loosen set screw in end of piston rod with a size 2 allen wrench or allen head screw driver Carefully remove piston rod support pin while supporting the piston with your other hand The piston will drop in your hand when the support pin is removed April 2007 Installation amp Service Manual NOTE Replacement piston should be of same weight capacity as the piston being replaced 3 Install new gas piston by supporting base end with rear support pin in back of 4 upright assembly Rotate piston up to line up rod end in hinge and secure in place 5 by inserting the piston rod support pin 4 Tighten size M4 set screw with a size 2 allen wrench or allen head screwdriver 6 then unscr
8. lines where the front base rail and the rear case legs are to be located for the entire line up Check level of floor where cases are to be set Determine the highest point of the floor cases will be set off this point November 2004 n amp Service Manual LPFMT LPFDT NOTE Front edges of base rail and rear edges of the case legs should always be used to line up cases Case base rails are leveled with 6 shims while case legs have built in leveling adjustment capabilities 2 Cases are shipped on skids Using a proper lifting devise lift case off skid and position case where it is to be installed While the case is properly supported install rear legs into threaded holes in base Make sure all legs are completely threaded into the base to properly secure them Carefully lower and position case at the highest point on the chalk line Shim front and middle base rails to level fron posion of case Thread out bottom rear leg inserts up to 1 1 2 to level the rear portion of the case Check leveling across the top of the case bottom front edge of dome top and on top of the front glass CAUTION Case must be leveled from front to back and side to side prior to joining This insures proper operation water drainage and glass alignment If the base of this case is not sitting evenly on the floor the case could warp when loaded and possibly break the lift glass NOTE A foam gasket is factory installed on o
9. pere EM E ueteri H MURE NUT sen INTERIOR TOP LIGHTS H Rut H fan H4 aes nu n Sn TRA 3 DE 3 P D JQUiD LINE H W I M E H DT ANTI SNEAT HEATER rud Bue H Ss TAN H EHH Ep ea a A F i tor teary E ELL G LL E 6 a 6 i E du 5 EO RET COVERS SCT is g SS sig e i SUE GEN EE y OPTIONAL LIGHTED SHELVING E BABFT CASES 3 ROWS 6 SHELVES s 5 2 waz EM o HI EP og t H s p 3 FAN MOTORS 2 PER S amp BFT CASES a 2 NOTE Page 14 July 2007 LPFMT Domestic amp Export 50 Hz Case Circuits 12 Cases S V i i 120VAC POWER OUTLETS Ja a i 9803168 HE a
10. 3 domo top fans and 3 self servo fans for 12 cases T8 Lighting with Electronic Ballasts 120 Volt SHELF LIGHTS PER ROW AMPS ROWS OF SHELVES WATTS ROWS OF Spe 1 2 1 Defrost Data Loar rue lue Lo Ene Ex be be Le o Ere Hoe e E UL SANITATION approved in accordance with 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 data and tests that we belleve are reliable and is intended Tor use by persons having technical skil al their own discretion and risk Since conditions of use are outside of Tyler s 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 6 July 2007 LPFDT CROSS SECTION E LPFMT LPFDT 17 3 4 s 12 7 8 I 47 314 posed Air x Z A oF I x gees 14 1 4 BAI ia ta i lt J Forced Air ER Coil Storage Area 17 19 h x 18 1 2 d 16 O 19 x n e pP x Vol E M 45 1 4 fe 2 1 2 5 1 2 ke 53 1 4 gt FLOOR PLAN N Ie TN for 6 case 96 3 8 for8 case 1 1 2 or 144 1 2 for 12 case Add
11. 962268 Fan Bracket Plate 9041077 9041077 9041077 Fan Blades 7 10 5B LPFDT Top Dome 9805540 9805540 9805540 7 20 5B Self Serve Sect All 5960934 5960934 5960934 Opt ECM Fan Motor all models 9025002 9025002 9025002 8 Watt 8 Watt 8 Watt Opt ECM Fan Motor Brackets 9025005 9025005 9025005 Opt ECM Fan Blades 7 5 5B LPFDT Top Dome 9805539 9805539 9805539 7 15 5B Self Serve Sect All 5223891 8223891 5223891 Rocker Switch 5961377 5961377 5961377 Rectangular Outlet 5236335 5236335 5236335 T 8 Lamp Ballast top dome 1 row 5991029 5991029 5991030 canopy 1 row 5991029 5991029 5991030 opt shelf per row 5991029 5991029 5991030 T 8 Lampholder top dome canopy 9041897 9041897 9041897 T 8 Shelf Harness 9027906 9027906 9027906 Hydro Lift Gas Piston 9801274 9801274 9801274 Hydro Lift Piston Tool 5152656 5152656 5152656 Required to remove pistons Suction Solenoid Valve 5191445 5191445 5191445 LPFMT Top Dome Liquid Solenoid Valve 5084991 5084991 5084991 LPFMT Top Dome Electronic Thermostat 9043552 9043552 9043552 LPFMT Top Dome Check Valve LPFMT Top Dome 5199417 5199417 5199417 For information on operational parts not listed above contact the TYLER Service Parts Department Page 30 April 2007
12. IF is shown on the LCD display c Push the Menu Button one more time and a differential number will be displayed d Push the Up or Down Button until the desired differential setting is displayed LPFMT Top Dome 9 F d Push the Menu Button With the cooling mode selected the differential is ABOVE the setpoint The relay will be energized and the LED indicator will illuminate when the temperature reaches the differential setting When the temperature drops to the setpoint the relay and LED indicator will de energize and refrigeration will stop The settings above are specific to TYLER service cases Other applications will require different setpoints and differentials April 2007 Installation amp Service Manual Electrical Procedures Electrical Considerations CAUTION Make sure all electrical connections at components and terminal blocks are tight This prevents burning of electrical termi nals and or premature component failure NOTE The ballast box is located at the lower right rear corner of the case It houses ballasts and terminal blocks Case Fan Circuit This circuit is to be supplied by an uninterrupted protected 120V circuit The case fan circuit is not cycled on this case The fan circuit consists of 2 3 fans for the LPFMT or 4 6 fans for the LPFDT Fluorescent Lamp Circuit Case lighting is supplied by T 8 electronic ballast lights It is controlled by a light switch in each case The
13. R Refrigeration recommends you order all components from its Service Parts Department Ballast Replacement 1 Remove screws and electrical box cover from rear of case NOTE If tappit screws are not available a starwasher should be used between the ballast and the heads of the screws 2 Install required number of ballasts in electrical box with two screws each 3 Identify and connect required wiring harnesses upper lower etc to the ballast connectors 4 Replace electrical box cover and secure with screws November 2004 LPFMT LPFDT Lift Glass Replacement WARNING Wear safety glasses and gloves and use at least two people when replacing glass Glass is heavy and weight distribution is uneven Mishandling of glass could cause breakage and or personal injury If replacing glass 1 Raise the old glass to the full UP position NOTE Glass is heavy and requires assistance for properly support Note positioning and installation of top edge channel before removing 2 With assistants firmly holding both ends of the glass 1 loosen the set screws 2 in the back of the top edge channel 3 with an allen wrench or allen head screw driver Glass pone SS esi Aluminum Wedge Set Screw Location Page 25 LPFMT LPFDT 3 Using a flathead screwdriver push down aluminum wedge inside top edge channel 3 until it rests in bottom of the channel After wedge has been released from
14. Rear Glass Retainer 9805047 9026549 9026550 10 Color Band Ptd 9025979 9036805 9036806 Color Band Backer Ptd 9025982 9025982 9025982 11 Bumper color per order Bumper Backer color per order Bumper Retainer 9025052 9025058 9025061 12 Front Lower Cladding Ptd 9805057 9801525 9801526 Frt Lwr Clad Joint Trim Ptd 9805553 9805553 9805553 13 Kickplate Ptd 9039277 9039278 9802129 Kickplate Joint Trim Ptd 9039020 9039020 9039020 14 Kickplate Support Assembly 9043461 9043461 9043461 15 Opt Base End Closeoff Ptd 9803675 9803675 9803675 per patch end 16 Horizontal End Trim 5964733 5964733 5964733 17 Rear Pipe Leg Std 1 5 X 4 9330018 3 9330018 3 9330018 4 18 Rear Closeoff Assembly Ptd 9805668 9805669 9805670 19 Rear Lower Cladding Ptd 9805076 9803093 9803096 Rr Lwr Cladding Joint Trim Ptd 9805559 9805559 9805559 20 End Mullion Cover Ptd 9805083 9803115 9803115 21 Upper Rear Cladding Assy Ptd 9805673 9805676 9805679 22 Rr Upr Cladding Joint Trim Ptd 9805454 9805454 9805454 23 Ballast Box Cover 9803150 9803150 9803150 Page 28 April 2007 Installation amp Service Manual LPFMT LPFDT Not Shown 7 16 Not Shown 15 14 November 2004 Page 29 LPFMT LPFDT REFRIGERATIO Operational Parts List Case Usage Domestic Electrical Circuit 115 Volt 60 Hertz Case Size e 8 12 Fan Motor 5243498 5243498 5243498 9 Watt 9 Watt 9 Watt Fan Motor Brackets 5962268 5962268 5
15. TYLER Z Carrier REFRIGERATION Alles Cero SE 2 ZE S Installation amp Service Manual LPFMT LPFDT DOME TOP SERVICE SELF SERVICE COMBINATION MERCHANDISERS Medium Temperature Service 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 INU S A change without notice EDITION 4 04 DATE 7 07 No 9808205 REV C Tyler Refrigeration Niles Michigan 49120 LPFMT LPFDT CONTENTS Page Specifications LPFMT LPFDT Specification Sheets 4 Line Sizing Requirements Pre Installation Responsibilities Pre Installation Check List Installation Procedures Carpentry Procedures Case Line Up Lift Dome Glass Leveling Instructions Trim Installation Plumbing Procedures Refrigeration Procedures Temperature Control Setting the Electronic Thermostat LPFMT Top Dome Electrical Procedures Electrical Considerations Case Fan Circuit Fluorescent Lamp Circuit Defrost Information Defrost Control Chart Installation Procedure Check Lists See Gen Wiring Diagrams LPFMT Case Circuits 6 8 amp 12 Cases LPFDT Case
16. are nuts or caps from threaded connections until the unit is ready for final hook up All coils are pressurized and have a Schrader Valve access fitting If pressure has been lost check for leaks Page 8 INSTALLATION PROCEDURES WARNING The raised front glass does not project in front of the case but could cause personal injury to workers operators and or customers Do not leave lift glass raised and unattended Know where the front edge of the raised glass is when working near it 73 1 2 This case is designed so the front glass of the top dome can be raised for cleaning and merchandising only It is recommended that any cleaning or merchandising of the top dome be done when the store is closed If this is not possible it should be done at a time when customer traffic is low The raised glass should not be left unattended and should be lowered whenever leaving the case April 2007 Installa Carpentry Procedures Case Line Up 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 These cases are very heavy and require two or more people to move position and or install them Do not walk on the tops of these cases Tops of cases are not designed to support the weight of a human being Improper handling of these cases could result in personal injury 1 Snap chalk
17. at 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 prema turely 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 Encourage butchers to maintain all meat below the case load lines and to eliminate product voids Case screens could be covered in some instances to keep the refrigerated 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 Voids in display raise surface temperature of package in front of void 210 6 F Page 24 T REFRI ATI SERVICE INSTRUCTIONS Connecting the Refrigeration Piping and Components ARI G Be sure to position a flame and heat resistent shi
18. cleaning replace in reverse order Dome Top Rear Air Ducts LPFDT 1 Remove lower trays 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 Dome Top Mullion Covers 1 Open the front straight glass by lifting the handle at the bottom 2 Remove mounting screws from each mullion cover WARNING Mullion covers with electrical receptacles can be cleaned without removing the electrical receptacles Do not get moisture on electrical wires when cleaning under this cover Moisture on wires could cause premature product failure and or personal injury or death from electrical shock 3 Carefully remove each mullion cover from the rear uprights 4 After cleaning replace and secure mullion Covers in reverse order Page 18 T REFRI ATI Lower Shelves and Shelf Brackets 5 Remove product from shelves If shelf has a light unplug the light cord from socket from the rear duct panel Completely insert socket cover in the light socket to protect the receptacle Push shelves back and then lift up and out to remove them from the shelf brackets Remove shelf brackets from slots in rear uprights After cleaning replace in reverse order Lower Bottom Trays EM 2 Remove product from bottom of case Grasp and lift each of the bottom trays from the case interior After cleaning replace bottom trays with lips
19. couring pads to clean glass They can scratch and or damage the glass See General UL NSF I amp S Manual for case cleaning instructions Page 19 LPFMT LPFDT REFRIGERATION 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 Stubborn spots and stains baked on splatter and other light discolorations Heat tint or heavy discoloration Page 20 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 tale Liquid NuSteel 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 Penny Brite or Copper Brite Paste NuSteel or DuBois Temp 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 Rub with dry cloth Use a small amount of cleaner Ap
20. ct 13 Lower Rear Cladding Joint Trim Joint End Trim 6 Front Glass 14 Upper Rear Cladding Joint Trim Joint End Trim Optional trim components Horizontal joint trim covers gaps between the cases The trim is glued onto the shipping cardboard Iftrim has a notched side apply trim with notched side towards front of case after running beads of caulking on the edges ofthe cases Sheet metal screws can be used for additional securing July 2007 LPFMT LPFDT Patch end trim is shipped factory installed If field installation is required be sure the patch end is pulled up enough to fit snuggly against the sealing tubing on the inside of the case See General UL NSF I amp S Manual for Plumbing Procedures Refrigeration Procedures Refrigeration system and superheat instructions can be found in the General UL NSF I amp S Manual Service case temperature control information is listed below Temperature Control The top dome section of the LPFMT case has an extra thermostat and a suction line solenoid An additional liquid line solenoid with an on off toggle switch isolates the top dome section on the LPFMT case See pages 4 and 6 for case specifications The LPFMT cases use the thermostat extra solenoid valves and toggle switch for improved temperature control and isolation of the top dome refrigeration system Typical LPFMT Top Dome Gravity and Serpentine Coils x Serpentine Coil Suction Line
21. down in reverse order Lower Front Air Ducts T 2 3 Remove bottom trays see above Lift out front air duct sections After cleaning replace in reverse order Lower Rear Duct Panels w o Shelf Light Sockets t Remove shelves and bottom trays see above Remove mounting screws and rear duct panels from case After cleaning replace and secure rear duct panels in reverse order with Shelf Light Sockets t Remove shelves and bottom trays see above Remove mounting screws from rear duct panels Slowly lift out each rear duct panel until the shelf harness connector can be accessed Disconnect shelf harness connector and complete removing the rear duct panels April 2007 Installation amp Service Manual WARNING Rear duct panels receptacles can be cleaned without removing the electrical receptacles Do not get moisture on electrical wires when cleaning under this cover Moisture on wires could cause premature product failure and or personal injury or death from electrical shock 5 After cleaning reconnect each shelf har ness connector and replace and secure the rear duct panels in reverse order Lower Discharge Air Honeycomb NOTE Note position of the honeycomb grid during removal so it can be reinstalled the same way 1 Remove screws bottom retainer plate and honeycomb grids from rear top duct CAUTION Improper installation of the honeycomb grid could resul improper a
22. eld over the bottom of the case liner Heat from brazing could damage the liner and or cause personal injury or death from fire 1 Remove screws and refrigeration piping cover from the left bottom of the case 2 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 3 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 4 After piping has cooled route and connect thermostat and sensor wires through openings in the bottom of the case Light Servicing See General UL NSF I amp S Manual for preventive maintenance T 8 lamp fan blade and fan motor TLD replacement instructions replacement April 2007 Installa n amp Service Manual Ballast and Lighting Locations Electrical Box n All light ballasts are located in an electrcal box in the top of the rear storage cabinet at the right rear of the case Underwriter s 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 TYLE
23. elf lighis Defrost Data Limes rae ETA 78 TE The actual temperature control for the dome section should be set by the thermostat LPFMT meat settings for the dome section of this case CUT IN 28 F and CUT OUT 20 F Fish Ice bed settings for the dome section CUT IN 34 F and CUT OUT 32 F NOTE This case comes with a toggle switch that enables the dome section to be isolated from the lower section UL SANITATION approved in accordance with ANSI NSF 7 CASE BTUH REQUIREMENTS are calculated to produce approximately the indicated performance with absolute maximum operating ambient limits of 75 F amp SSRH The information contained herein is based on technical data and tests hal we balleve are reliable and is intended for use by persons having technical sil at their own discretion and risk Since conditions of use are outside of Tyler s 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 July 2007 Installation amp Service Manual LPFMT LPFDT LPFMT CROSS SECTION e Gravity Coil 17 3 4 10 11 16 e Serpentine e 17 3 4 jc Con A SES se Force Air Coil Ev Storage Area VA 17 19 h x 18 1 2 d 19 nes E K
24. ew 1 2 turn and secure with Loctite or Weicon semi hard 5 Repeat steps 2 thru 4 until all bad gas pistons have been replaced November 2004 1 LPFMT LPFDT Front Lower Glass Replacement Remove screw 1 screw nut 2 glass joint trim 3 and glass joint backer 4 from both joints of the broken glass Remove glass trim rail 6 from top of glass 5 Loosen rear retainer 7 and remove broken glass from glass retainer assembly 8 Apply sealant tape 9 to top and bottom edge of new glass 5 Position new glass 5 in glass retainer assembly 8 and secure by tightening rear retainer 7 Install glass trim rail 6 over top edge of new glass 5 Install glass joint backer 4 glass joint trim 3 with screw 1 and screw nut 2 over both joint areas of the glass 5 Page 27 LPFMT LPFDT REFRIGERATIO PARTS INFORMATION Cladding and Trim Parts List Item Description 6 8 12 1 Rear Top Cladding Ptd 9805072 9803124 9803127 2 Rr Top Cladding Joint Trim Ptd 9805585 9805585 9805585 3 Front Duct Joint Trim MB 9805575 9805575 9805575 Dome Int Joint Trim Kit MB 9805488 9805488 9805488 4 Top Cladding MB 9805390 9805401 9805349 5 Top Cladding Joint Trim MB 9805572 9805572 9805572 6 Rear Lower Duct Joint Trim 5237536 5237536 5237536 7 Front Glass Joint Trim 9806330 9806330 9806330 8 Top Glass Trim Rail 9805046 9026561 9026562 9 Front Glass Retainer 9026024 9026025 9026026
25. glass 1 remove the old glass from the top edge channel 5 Position the top edge channel 3 on the new glass panel 1 in same position as removed NOTE Glass must be fully inserted into top edge channel before tightening 6 After glass 1 is positioned in the top edge channel 3 tighten each set screw 2 until glass is held into place by the aluminum wedge Do not overtighten 6 With aid of assistants lift and tentatively position new glass assembly 1 in the hinge slots Tighten the hinge set screws 2 7 in Ib Do not overtighten 7 Slowly lower glass to check position If adjustment is necessary raise glass and have assistants hold both ends Loosen the hinge set screws adjust the glass assembly position and retighten set Screws to secure top edge channel in hinge slot Do not overtighten Lift Glass Gas Piston Replacement WARNING The LPFMT amp LPFDT cases rely upon gas pistons to assist lifting the glass and hold ing it in the raised position on the dome top sections The glass is heavy and diffi cult for one person to lift alone while replacing a gas piston Use an assistant to prevent possible glass breakage and or personal injury Since gas pistons are very powerful when in compressed state follow these cautions during replacement Page 26 T REFRI ATI Do not attempt to perform any work on case while piston is in compressed state Raise glass to full UP position before
26. he factory If the doors are not labeled the inner door can be identified as having the limiter stops on it 1 Remove the outer door 1 by sliding it to the right end of the door frame 2 within an inch of being closed 2 Firmly grasp both sides of the outer door 1 and lift into the upper track 3 until it clears the lower track 4 Page 22 REFRIGERATIO 3 Tilt out the bottom of the outer door 1 so it can clear the lower track 4 4 d 4 Lower the outer door 1 out of the upper track 3 to remove it from the case 5 Repeat steps 1 thru 4 to remove the inner door 5 6 Reverse the above steps to replace the inner and outer doors 5 and 1 April 2007 Installation amp Se Top Mounted Scale Shelf Installation The optional scale shelf is mounted to the top center of the case and the center mullion on the back of the case NOTE If the reinforcement is shipped loose align with the center two holes in the bracket and attach during installation P uh Sc bo e ccm i be a Peinforcement SET Panel Bracket The scale shelf panel reinforcement and bracket should be shipped as a pre assem bled unit from the factory Use the follow instructions to mount the scale shelf assembly 1 Align scale shelf 1 so center of the shelf lines up with the center rear mullion 2 November 2004 e Manual LPFMT LPFDT 2 Attach scale shelf 1
27. ir flow and or poor refrigeration 2 After cleaning replace honeycomb grid sections as they were removed and secure with the bottom retainer plate and screws Lower Front Cladding NOTE Lower front cladding is not removable 1 Wipe surface clean with a damp soapy cloth 2 Rinse with clean damp cloth and dry surface completely April 2007 LPFMT LPFDT Cleaning Instructions WAR G TYLER Refrigeration does not recommend the use of high pressure cleaning equip ment on service style cases The sealing of front glass and end joints is critical in these cases and high pressure cleaners can penetrate and or damage these 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 II 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 etc Always use a soft cloth or sponge with mild detergent and water to clean the front glass Never use abrasives or s
28. ire Do not smoke while vapors are present Be sure area is well ventilated 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 Effective on tenacious deposites or where scale has built up Satisfactory for use on all finishes Use of proprietary names is intended only to indicate a type of cleaner and does not constitute an endorsement nor is omission 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 In 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 stainless steel April 2007 Page 21 LPFMT LPFDT GENERAL INFORMATION Rear Sliding Door Removal and Installation The sliding doors come installed from the factory in the door frames These doors are removable for cleaning and to aid in case maintenance NOTE DO NOT FULLY IMMERSE DOORS WHEN CLEANING The inner and outer doors are marked with labels from t
29. mestic amp Export 50 Hz Case Circuits 12 Cases I E if ni ii 120VAC POWER OUTLETS a esee 3 pen vu zim Vepmpe ES pie uen mue ausa I M m IEEE oF s TOP SHELF CANOPY di tee Ee HER a E E E EL 3 Fi 3 rage SEEN s Et D 39089 j Ze d Fae ATTA BOT SERE 2889 pde eresia SES d p 5588 2 9 ose e EE amp n MES IS on ter i 5 EE 3 OPTIONAL LIGHTED SHELVING 8 A Tar CASES 3 ROWS 9 SHELVES E 9 agio H 523 lt ES 8 E 3 TAN MOTORS 3 PER 12F7 cases E NOTE November 2004 Page 17 LPFMT LPFDT CLEANING AND SANITATION Component Removal and Installation Instructions for Cleaning Dome Top Lower Trays 1 Open the front straight glass by lifting at the bottom of the glass panel Remove product from the case interior Grasp and lift out each lower tray from the bottom of the dome top 4 After cleaning replace in reverse order Dome Top Front Air Ducts LPFDT 1 Remove lower trays see this page 2 Lift out front air duct sections 3 After
30. ne end of the case gasket fits into a groove on the adjoining case when cases are pulled together Do not depend on the foam gasket alone to make a good seal Page 9 LPFMT LPFDT 3 Apply two heavy beads of caulking compound from the Filler Kit to the end of case at dotted and dashed lines Proper caulking provides good case refrigeration and sanitation 4 Push cases tightly together making sure the pull ups are aligned 5 Adjust legs or add shims under the end pedestals as required Check leveling at top of the case bottom front edge of dome top and on top of the front glass CAUTION Do not drill or use other holes through the case end for pull ups This may deform the case end and could cause joint leaks and or poor refrigeration 6 Position pull up bolts and mounting hard ware at pull up locations A and B Do not tighten any pull up hardware 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 Page 10 REFRIGERATI Lift Dome Glass Leveling Instructions Accurate leveling is critical for the proper operation of the lift dome glass on this case In some instances setting the case on an apparently level floor can cause the lift glass to fit improperly If there is any twist in the body it could cause the lift glass not to fit or work properly The em
31. p Service Manual LPFMT LPFDT TYPE OF CLEANING Burnt on foods and grease fatty acids milkstone where swab bing or rubbing is not practical Tenacious deposits rusty discolorations industrial atmospheric stains Hard water spots and scale Grease and oil CLEANING AGENT Revere Stainless Steel Cleaner Allen Polish Steel Bright Wyandotte Bab O or Zud Easy Off De Grease lt 4 6 hot solution of such agents as trisodium tripolyphospate or 5 15 caustic soda solution Oakite No 33 Dilac Texo 12 Texo N Y Flash Klenz Caddy Cleaner Turco Scale 4368 or Permag 57 Vinegar 5 oxalic acid 5 sulamic acid 5 10 phospheric acid or Dilac Oakite No 33 Texo 12 or Texo N Y Organic solvents such as carbon tetrachloride tri chlorethylene acetone kero sene gasoline benzene alcohol and chlorethane n u APPLICATION METHOD EFFECT ON FINISH 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 with neutralizer rinse and dry Rub with a cloth Organic solvents may be flammable and or toxic Observe all precautions against f
32. phasis when leveling this case must be on making sure the lift glass works and seals properly The case should be leveled across the top 1 close to the hinge and on the top of the front cladding 2 A 4 foot level is recommended and both places should be level This will enable the lift glass to fit and work properly If the lift dome glass still doesn t close or line up properly adjust the rear legs or shim the base rails at the corners Leg adjustment or shimming will ensure proper operation and alignment of the lift dome glass The inside bottom edge of the lift dome glass must rest evenly on the glass support trim Proper lift glass sealing is essential for good product refrigeration NOTE Do not anchor the base to the floor or enclose the case until the lift dome glass is fitting properly and working correctly See General UL NSF I amp S Manual for further line up assembly instructions April 2007 Trim Installation Ka 6 EH RS ES a Stee 11 en E lt eo The folowing joint trims backers end trims and mounting hardware are shipped loose Trim includes 1 Rear Top Cladding 7 Color Band Backer Joint End Trim 8 Bumper Backer 2 Interior Dome 9 Lower Front Cladding Joint Trim Kit Joint End Trim 3 Front Dome Duct 10 Kickplate Joint Trim Joint End Trim 11 Horizontal 4 Upper Cladding Joint Trim Joint Trim 12 Rear Base Closeoff 5 Rear Lower Du
33. ply 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 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 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 April 2007 Installation am
34. s are covered in this manual MODEL LPFMT LPFDT April 2007 DESCRIPTION 6 8 amp 12 LIFT GLASS DOME TOP GRAVITY COIL SERVICE SELF SERVICE MED TEMP MEAT COMBINATION MERCHANDISERS 6 8 amp 12 LIFT GLASS DOME TOP BLOWER COIL SERVICE SELF SERVICE MED TEMP DELI COMBINATION MERCHANDISERS Page 3 LPFMT LPFDT REFRIGERATION SPECIFICATIONS LPFMT Combination Merchandisers with Gravity Serpentine Coil Top Dome Refrigeration Data DISCHARGE AIR Capacity data listed for cases with 1 row of T A Dome Lights 1 row of T 8 Canopy Lights and 2 rows of optional lighted shelves li case has unlighted shelves DEDUCT 20 BTUH FT per row of unighted shelves on the case Evaporator temperature is based on the saturated pressure leaving the case Air velocity measured 1 hour after defrost at tho back edge of the top shelf 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 120 Volt TOTAL TOTAL STANDARD FANS ECM FANS AMPS WATTS LF UTS PERON WEIT AMPS ROWS OF SHELVES WATTS ROWS OF SHELVES 1 2 1 2 AMPS WATTS For cases with 1 row of dome lights 1 row of canopy lights and 2 rows of sh
35. standard lighting is 1 row of dome lights and 1 row of canopy lights 2 rows of optional shelf lights are available Defrost Information See General UL NSF I amp S Manual for operational descriptions for Off Time defrost control Defrost Control Chart LPFMT Defrost Option Settings Defrost Defrost Defrosts Duration Term Type PerDay Min Temp Off Time 4 40 LPFDT Defrost Option Settings Defrost Defrost Defrosts Duration Term Type PerDay Min Temp Off Time 4 40 November 2004 LPFMT LPFDT NOTE The LPFMT has a thermostat and suction line solenoid to improve the temperature control in the top dome section Atoggle switch with a liquid line solenoid isolates the top dome section from the lower section WIRING DIAGRAMS ELECTRICIAN NOTE OVERCURRENT PROTECTION 120V circuits should be protected by 15 or 20 Amp devices per the requirements noted on the cabinet nameplate or the National Electrical Code Canadian Electrical Code Part 1 Section 28 208V defrost circuits employ No 12 AWG field wire leads for field connections On remote cases intended for end to end line ups bonding for ground may rely upon the pull up bolts The following wiring diagrams on pages 14 thru 17 will cover the LPFMT and LPFDT case defrost and lighting circuits Page 13 LPFMT Domestic amp Export 50 Hz Case Circuits 6 and 8 Cases Spe 3 ie S i VS iis
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