Installation & Service Manual
Contents
1. E Electric Defrost Termination G Gas Defrost Fan Delay Dual Temp F S Electric Defrost Failsafe Optional May 2004 LFSC5 LF5 LNSC5 LN5 NOTE The termination klixon for gas defrost is located at the bypass check valve CAUTION If electronic sensors are used in place of the klixons the sensors must be located in the same location as the klixons for that defrost type Any other location will effect the refrigeration efficiency of the case WIRING DIAGRAMS ELECTRICIAN NOTE OVERCURRENT PROTECTION 120V circuits should be protected by 15 or 20 Amp devices per the requirements noted on the cabinet nameplate or the National Electrical Code Canadian Electrical Code Part 1 Section 28 208V defrost 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 12 thru 15 will cover the LFSC5 LF5 LNSC5 LN5 case circuits The defrost circuits are shown in the case circuits Page 11 TV 1748706 vB 1148006 Bec new asas asa 1 4 3 N AG LSNW SISVO 11 ALON T HOLIMS 1VO14 IVISONYIHI 11017 N3lV3H HOLON HOSSIYANOI o 5 1g SA MO129VINOO I JOYLNOD2. TOXLNOI IUNSSIMA 1544 HOLIMS 193NNOOSIQ 3572 AlddNs CNNOND 3HIM Z ZHO9 OVADZI HOLOM 4 0 3S010 4 0 SN3dO MO1VNOdVA3 1VISOWN3Hl LINIT L50430 LVAMS 1LNV M3lV3H 1500 30 MJNIVI3M 55770 UVIU M3LlV3H 1 3 5 1 Tiva Wiel UVIy SNOISIAZY TYNNYN ON d P er 33147 LN GGHSINI4 OF 35 1 0 031219395 SSIMO SIHONI NI SNOISNSMIG NOISSIPeL3d INGHLIM 38 LON OY _ AMO 350 ONIH33N SI NOIL SIHL NO NOI LYONI OL SIIA 3900 NOLEYH3S LUE LNSC5 Domestic amp Export 50 Hz May 2004 Page 14 ircuits LN5 Domestic amp Export 50 Hz Case C NVY9VIA 38 LSAW SASVO 11y 5 ZHO9 OVAOZI DOTE Do ATddNS l CL amme 2109 302 S3S019 4 0S SN3dO sn LIWI1 1504430 NOLON YOLVHOdVAI LI 2 LF M31V3iH 1504338 M31V3H IVIMS INV N3NIVI3H SSVIO Ta ed YILVIH LvaMS INV Wil EL I GaMOTTY SNOISIA3N TVONVN ON INIRUVAUL NO IVEDSROO_ NOLI VELO TN M3l4V LUVd GIHSINIA OL AlddY SNOISNANIG 3SIMM3HIO 031312395 VE VA n SSJINN S3HONI NI SNOISN3MIQ 17 X dalvol wavs 13008 SIHO IH SMIVIO NOIIVH39 3 434 NITAL Page 15 dLO
3. E amp 3 4 i b i 11 3 4 da 1 5 1 2 Front of Case Note Self Contained cases not require floor drains 4 gt 34 Base 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 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 May 2004 Installation amp Service Manual LFSC5 LF5 LNSC5 LN5 LN5 Medium Temperature Spot Merchandisers Remote Refrigeration Data __CAPACITY BTUH FT DISCHARGE AIR AVG REF E EVAPORATOR UNIT SIZING TEMPERATURE VELOCITY CURSE PARALLEL CONVENTIONAL CF FPM ins 5 __ 1750 1820 1 219 ode 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 aver
4. medium temps can be achieved by adjusting the thermostat NOTE COMPRESSOR SIZING SHOULD ALLOW FOR SUCTION LINE PRESSURE DROP THE ABOVE RATINGS ARE FOR COMPRESSOR SELECTION ONLY FOR ENERGY CALCULATION DATA REFER TO THE ENERGY SECTION FOR COMPRESSOR SIZING INFORMATION REFER TO THE GOLD SECTION amp FOR LINE SIZING INFORMATION REFER TO THE BUFF SECTION OF THE TYLER SPECIFICATION GUIDE DEFROST CONTROL REMOTE BACKUP PRESSURE SETTINGS EPRSETTINGS Si MODE m CUT IN CUT OUT 404 ELECTIFF FF 14 RaQIA 79 ELECT 36 MIN 5 IC 9 Q R404A 120 HOT GAS FF 55F 0 HOT GAS IC 55F FF 144 Q R404A 4 RA04A 17 0 9t R404A 12 0 If an Electronic Sensor is used for termination it should be set at 70 F termination temperature O RA04A REMOTE DATA Defrost Above Table Control Setting See Above Table SELF CONTAINED DATA Refrigerant 50 oz R 404A Control Settings See Above Table Maximum Overcurrent 115v 20 amps Minimum Circuit Capacity 115v 16 amps A S Heater amps 9 Electrical Fan amps 5 120 60Hz 1ph A S Heater amps 9 Total Fan amp A S 1 4 220v 60Hz 1ph Defrost Heater amps 4 5 1 1 2 PVC Electrical 120v 60Hz 1ph Condensate Htr amps 3 5 Defrost water evap
5. DESIGN PRESSURE DISCHARGE AIR DEFROSTS SETTINGS REFRIGERATION LOW SIDE TEMPERATUR VELOCITY DEFROSTS DURATION cut IN CHARGE PSIG E F FPM PERDAY TIME MIN CF LBS CASE MEDTEMP 183 400 20 219 2 30 37 32 27 t Air velocity measured 1 hour after defrost at the discharge air duct using an ALNOR JR velometer with a scoop FOR SPECIFIC COMPRESSOR SIZING AND OR LINE SIZING INFORMATION REFER TO THE GOLD AND OR BUFF SECTIONS IN THE TYLER SPECIFICATION GUIDE Electrical Data CASE ELECTRICAL CIRCUIT One 120V Electrical Power Supply is required for this Self Contained case This 120V Power Supply runs all circuits and components in this unit Self Contained Electrical Data 120 Volt SELF CONTAINED TOTAL DEFROST COMPRESSOR ANTL SWEATS HEATER MODEL UNT RLA LRA amps AMPS amps warts AMPS WATTS 120V 60Hz es mie rs mo ver em oso oto Run Load Amperage includes the condenser fan Locked Rotor Amperage Minimum Circuit Ampacity includes condenser fan defrost heater and anti sweat heaters Maximum Overcurrent Protection NOTE These units do not require a condensate pan heater The water is dissipated via hot gas loop off the compressor e LNSC5 CROSS SECTION LNSC5 FLOOR PLAN 62 End Bumpers 40 conden Say d
6. Hz Case Circuits 12 LF5 Domestic amp Export BOHz Case Circuits 13 LNSC5 Domestic amp Export 50Hz Case Circuits 14 LN5 Domestic amp Export 50Hz Case Circuits 15 Cleaning and Sanitation See General I amp S Manual Service Instructions Preventive Maintenance See General I amp S Manual Troubleshooting Self Contained 16 Fan Blade and Motor Replacement See General I amp S Manual Color Band and Bumper Replacement See General I amp S Manual Parts Information Operational Parts 81 17 Cladding and Trim Parts List 18 TYLER Warranty See General I amp S Manual The following Low and Medium Temperature Self Contained and Remote Spot Merchandiser models are covered in this manual MODELS DESCRIPTION LFSC5 LOW MEDIUM DUAL TEMP SELF CONTAINED SPOT MERCHANDISER LF5 LOW MEDIUM DUAL TEMP REMOTE SPOT MERCHANDISER LNSC5 MEDIUM TEMPERATURE SELF CONTAINED SPOT MERCHANDISER LF5 MEDIUM TEMPERATURE REMOTE SPOT MERCHANDISER May 2004 Page 3 LFSC5 LF5 LNSC5 LN5 Tyler Refrigeration SPECIFICATIONS LFSC5 LF5 Low Temperature Glass Top Spot Merchandiser Specification USAGE FROZEN ICECREAM DATA BASED ON Store Temp of 75F amp 55 Relative Humidity Maximum This case is designed to operate at dual temp Desired
7. N May 2004 LFSC5 LF5 LNSC5 LN5 SERVICE INSTRUCTIONS Troubleshooting Self Contained Units LFSC5 LNSC5 Only WARNING Tyler Refrigeration Never work on electrically powered equipment while it is energized Electrical shock could cause personal injury and or death TROUBLE 1 Unit will not run 2 Refrigerated section is too warm 3 Refrigerated section too cold 4 Unit runs all the time 5 Noisy operation 6 Frost or ice on evaporator coil 7 Water dripping from case drain Page 16 COMMON CAUSE Blown fuse Low voltage Inoperative motor or temperature control Shelves overloaded blocked air flow Thermostat set incorrectly Pressure control set incorrectly Case fans not operating Thermostat set incorrectly Pressure control set incorrectly Inadequate air circulation Room temperature too warm Thermostat set incorrectly Refrigerant charge low Loose baffles Tubing contacting cabinet or other tubing Cabinet not level Defrost clock doesn t work Condensate drain clogged Dissipator not functioning REMEDY Replace fuse Check outlet with voltmeter Voltage should be 115V or 220V 10 Check connections Make sure items do not block the air flow Check setting Check setting Check terminal block connections Check setting Check setting Relocate cabinet or remove obstruc tion Check installation requirements Ventilate room appropriately Re
8. TYLER Atella aiita Installation amp Service Manual LFSC5 LF5 LNSC5 LN5 SELF SERVE SELF CONTAINED amp REMOTE SPOT MERCHANDISERS Low and Medium Temperature Refrigerated Display Cases This manual has been designed to be used in conjunction with the General Installation amp Service Manual Save the Instructions in Both Manuals for Future Reference This merchandiser conforms to the Commercial Refrigeration Manufacturers Association Health and Sanitation standard CRS S1 96 PRINTED IN Specifications subject to REPLACES ISSUE PART IN U S A change without notice EDITION 9 99 5 04 NO 9027525 REV D Tyler Refrigeration Niles Michigan 49120 Installation amp Service Manual LFSC5 LF5 LNSC5 LN5 CONTENTS Page Specifications LFSC5 LF5 Specification Sheets ale a 4 LNSC5 Specification Sheet ss ai 6 LN5 Specification Sheets 7 Pre Installation Responsibilities See General I amp S Manual Installation Procedures Plumbing Procedures LF5 LN5 only See General I amp S Manual Electrical Procedures 8 LFSC5 LNSC5 Condensing Unit Start Up and Maintenance 9 Defrost Information shies e ea eee E ERES ERE 11 Defrost Control Chart ste eue ehe t D 11 Installation Procedure Check Lists 11 Wiring Diagrams Recte ce CR i do 11 LFSC5 Domestic amp Export 50
9. age 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 and 208 Volt TOTAL TOTAL STANDARD TOTAL ANTI SWEATS 208 VOLT AMPS WATTS Lem ie we a wu E RES Defrost Data BACKUP PRESSURE SETTINGS EPR SETTINGS DEFROST DEFROSTS DURATION TERMINATION BACKUP PRESSURES EN WATER DEFROSTTYPE PERDAY TIME MIN CF CUT IN CUT OUT Bn LB FT DAY Electronic Sensor is used for termination it should be set at 70 F termination temperature The sensor must be located in the same location as the defrost termination klixon for that defrost type Used with Thermostat or EPR Control Set EPR to give this pressure at the case LN5 CROSS SECTION LN5 FLOOR PLAN 62 LS Wi End Bumpers 4 24 3 4 40 27 3 W 15 1 2 Wo e d E y 34 CASE REQUIREMENTS 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 o
10. f 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 May 2004 Page 7 LFSC5 LF5 LNSC5 LN5 INSTALLATION PROCEDURES Carpentry Procedures NOTE If installing LF5 or LN5 remote models see the plumbing and refrigeration procedure sections in the General I amp S Manual Electrical Procedures Electrical Considerations CAUTION Make sure all electrical connections are tight This will prevent burning of electrical terminals and or premature component failure Case Fan Circuit LF5 LN5 Only 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 Self Contained Circuit LFSC5 LNSC5 Only LFSC5 and LNSC5 cases are self contained units Specific electrical information pertaining to self contained units should be obtained directly from TYLER Refrigeration Page 8 Tyler Refrigeration May 2004 Installation amp Service Manual LFSC5 LF5 LNSC5 LN5 LFSC5 LNSC5 Condensing Unit Start Up and Maintenance 1 Condensing unit access is obtained by 6 On the LFSC5 the condensate pan is removing the front and rear ventilation stainless steel and is equipped with a panels 400W heater The heater is connected to a 190 F limit switch and a float switch to prevent the it from operat
11. g and Trim Parts Lists ltem Description Rear Cladding Painted Rear Bumper Retainer Bumper Rear Color Band Pntd Rear Trim Rail Rivet Rear Riser Trim Assy Screw Rear Glass Retainer O Glass Rail Assy N DOO WIN LFSC5 LF5 9022761 9025147 color per order 9022762 9022806 5104702 21 5960862 5203018 5 5217422 9022803 Tyler Refrigeration ltem Description 11 12 13 14 15 16 17 18 19 RH Front Glass Support LH Front Glass Support Frt Glass Retainer Assy Frt Color Band Pntd Frt Bumper Retainer Bumper Bumper Backer Screw Frt Cladding Pntd Rivet LFSC5 LF5 5217453 5217454 5217662 9020966 9025047 color per order color per order 9025833 16 9022761 5105037 4 For additional information on parts not listed above contact the TYLER Service Parts Department ltem Description Rear Cladding Painted Bumper Retainer Bumper Color Band Rear Glass Retainer Assy Rivet Rear Glass Retainer Screw Rear Glass Retainer Frt Glass Trim Rail Assy O NO dd O Rear Glass Trim Rail Assy LNSC5 LN5 9022761 9025047 color per order 9020966 5991856 5991860 5104702 2 5955527 5203018 10 5955527 5991858 Item Description 12 13 14 15 16 17 18 19 20 RH Front Glass Support LH Front Glass Support RH 3 Pane Glass Support LH 3 Pane Glass Support Front Glass Retainer Color Band Painted Bumper Reta
12. i o 5 n 5 I o 1544 HO11MS 19 103NNOOS Q 352 A ddns 3UIM Z 4 ZHO9 di MOLON 4 02 S3S010 4 05 SN3d0 IVISONYSHL 11411 1S0 430 H31V3H 1 3 5 LNY FOYVHOSIO o i E M31V3H LSOY430 M31V3H IV3MS l1NV 8 iva NISI INOMA YILVIH LV3MS 1NV LO M3NIVIJM 55770 INOUA N D sui e ane BENE e i SEW lene E UA 77 ts ircul LF5 Domestic amp Export 50 Hz Case C 0 728 06 E 641 3 103 SYM WvsSovid UILVIH LIVIMS 1INV NIV JOUVHOSIG Licores E eil ua i Page 13 7 SITONV 0207 SWWIO3Q 5 IMS Io aga ZHO9 OVAOZI ____ M3MOS INI ANNOY YOLOW YOLVYOdVAR M31V3H 1 5 11 WIML LNOYS CNW ELI M31v3H 1V3MS 11NV M3NIVI3M 55 19 OR EL I G3MO1lTV SNOISIA3H TVNNV ON NOLIVHOAUOD NOI IVI TUE VEAL INJMIVJHI ANY GIHSINI4 OL AlddY SNOISN3MIQ SNIVIO NOIIYN39 E3333 NITAL 7 38 LSNW S3svo 11 310N r 5 r 034 M18 2809 OVvA80Z 4 0 S3S019 4 0S 5 340 IVISONH3HI LINE 1504438 WWW YILVIH 1504439 May 2004 SOSN1 1N DUM WVYOV 39 LSAW SISVO WIV 310N YOLON YOLON YI TIOLLNOO PIL DINONIIIT M3SN30NOO MOSSIYANOI ts ircul
13. ich Clean more frequently if it gets clogged defrosts the coil The defrost limit switch with dust in less time Use a shop vacu opens at 50 F and turns off the heater um and or air pressure to clear the finned The unit will resume the refrigeration cycle coil of dust and dirt when the failsafe is expired May 2004 Page 9 LFSC5 LF5 LNSC5 LN5 Tyler Refrigeration LFSC5 Self Contained Unit REMOVE SHIPPING SCREWS X TO ALLOW CONDENSING UNIT TO BE SLID OUT FOR SERVICE NADY EMI ir in Re i f Va AT QA JA Q V Apia D BI y S4 QN T ESSET n a pu ld XL ah Ar N Oy o n To p y L e Logo L egies zi 10 2004 Installation amp Service Manual Defrost Information See General 145 Manual for operational descriptions for each type of defrost con trol Defrost Control Chart LFSC5 LF5 Defrost Option Settings Defrost Defrost Defrosts Duration Term Type Per Day Min Temp Electric FF 2 36 50 F Electric IC 2 36 50 F Gas FF 2 15 55 F Gas IC 2 15 55 F LNSC5 LN5 Defrost Option Settings Defrost Defrost Defrosts Duration Term Type Per Day Min Temp Electric 2 30 Gas 2 15 Most klixons are located on the left end of the evaporator coil The diagram shows the loca tion for each defrost type that uses a klixon
14. iner Bumper Bumper Backer Front Cladding Painted Screw Rivet LNSC5 LN5 5217448 5217449 5217453 5217454 5217423 9020966 9025047 color per order color per order 9022761 9025833 16 5105037 4 For additional information on parts not listed above contact the TYLER Service Parts Department Page 18 May 2004 Installation amp Service Manual LFSC5 LF5 LNSC5 LN5 LFSC5 LF5 6 789 10 LNSC5 LN5 May 2004 20 Page 19
15. ing when water is not present 2 Electrical supply should be wired directly to the terminal block alongside the defrost clock Electrical supply should be a 40A 115V 60Hz cicuit Be sure the case is On the LNSC5 the condensate water is properly grounded eliminated using the heat from the com NOTE pressor No resistance electrical heat is required The water from the case coil defrosting makes the unit more efficient when water is in the pan See Wiring Diagrams in this manual for wiring specifics 3 The compressor is mounted on rubber grommets Do not loosen the nuts The pan in either case will not handle wash water The plastic drain hose can 4 Set the thermostat for 0 F to 5 F for be pulled out to drain case interior to a LFSC5 or 35 F for LNSC5 A screwdriver bucket during cleaning Be sure to will be required to turn the slotted dial replace the plastic hose securely after NOTE cleaning The sensing bulb should be located in the 7 Service pressure access to the system is return air After the air passes through the through the Schrader valve and the suc coil it will be about 10 lower tion service valve on the compressor The condensing unit is on a slide out base 5 Set defrost control for two defrosts per day at 36 minutes failsafe for the LFSC5 8 Keep the condenser efficient by cleaning or 30 minutes failsafe for the LNSC5 it regularly at least every six months There is a 1000W electric heater wh
16. orated by 400w Condensate Heater Pan equipped with a float switch Defrost Heater amps 8 7 Condensing Unit Copeaweld FJAF A075 CAA ___ Drain No External Drain Required CASE REQUIREMENTS are calculated to produce approximately the indicated entering air temperature with absolute maximum operating ambient limits of 75F amp 55RH The information contained herein is based on technical data and tests which we believe to be reliable and is intended for use by persons having technical skill at their own discretion and risk Since conditions of use are outside Tyler s control we can assume no liability for results obtained or damages incurred through the applications of the data presented SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE Page 4 November 1999 Installation amp Service Manual LFSC5 LF5 LNSC5 LN5 LFSC5 LF5 Low Temperature Glass Top Spot Merchandisers 37 1 2 FLOOR PLAN SELF CONTAINED UNIT SAW ida 2 6 7 26 3 8 W Bumpers Note Self Contained cases do not require floor drains FLOOR PLAN REMOTE UNIT 62 W Bumpers 5 i Rear of Case 26 3 8 Base 34 O A W Bumpers October 1996 Page 5 LFSC5 LF5 LNSC5 LN5 Tyler Refrigeration LNSC5 Medium Temperature Spot Merchandisers Self Contained Self Contained Refrigeration amp Defrost Data
17. set thermostat Have unit serviced by a qualified service technician Tighten or brace baffles Move tubing Level cabinet Check electrical conections Have unit serviced by a qualified service technician Clear drain Check electrical supply Check float assembly May 2004 Installation amp Service Manual LFSC5 LF5 LNSC5 LN5 NOTE See General I amp S Manual for fan blade amp motor and color band amp bumper replace ment instructions PARTS INFORMATION Operational Parts List Domestic Case Usage LFSC5 LF5 LNSC5 LN5 Electrical Circuit 115 Volt 60 Hertz 115 Volt 60 Hertz Fan Motor 5125532 5125532 5 Watt 5 Watt Fan Motor Brackets 5962269 5962269 Fan Blades 7 20 5B 5960943 5960943 Anti Sweat Heater Wire Lo Watt 5217424 5217424 Hi Watt 5136615 5136615 Electric Defrost Heater LFSC5 LNSC5 5108188 5108188 LF5 LN5 5109046 5109046 Electric Defrost Limit Switch 5125211 5125211 Opt Gas Defrost Thermostat 9023508 9023508 Self Contained Unit Parts LFSC5 LNSC5 Only Defrost Time Clock 5161076 5161076 Magnetic Contactor 5960949 5960949 Condensing Unit 5932118 5234874 Condensing Unit Fan Motor SP B6SE192 SP B6SE192 Condensate Pan Thermostat 5216455 Condensate Float Switch 5900533 Condensate Heater 5217665 For information on operational parts not listed above contact the TYLER Service Parts Department May 2004 Page 17 LFSC5 LF5 LNSC5 LN5 Claddin
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