Service, Parts, Operation, Installation & General Manual 12/04
Contents
1. models AMES READING THE SERIAL TAG Serial The permanent ID of your Traulsen OZ Model The model of your Traulsen LOW Volts Voltage Hz Cycle OZ PH Phase LOW Total Current Maximum amp draw Minimum Circuit Minimum circuit required e Lights Light wattage Heaters Heater amperage Refrigerant Refrigerant type used Design Pressure High amp low side operating pressures and refrigerant charge Agency Labels Designates agency listings Il GENERAL INFORMATION Il INTRODUCTION This manual applies to the following Traulsen product types R Series Reach In Even Thaw Models Il b MODEL DESIGNATIONS The first letter indicates the series R R Stainless Steel Exterior amp Interior The next two letters indicate the product type ET Even Thaw Refrigerator The first number indicates the number of sections 2 lt Two Section The next two numbers indicates the product depth 32 32 Deep Over Body not including hardware The next letter indicates the product width N 2 Section 52 1 8 If UT is present the product is self contained If UT is not present the product is remote Il c WIRING DIAGRAM Refer to the wiring diagram for any service work per formed on this unit The copy contained in this book let is for standard 115 60 1 voltage self contained incandescent light equipped models only Other volt ages and feature options sets are n2. CONDENSATE DOOR PERIMETER HEATERS To remove the four breaker strips from around a door frame unscrew the sheet metal screws along the front and back of each After removeing all the screws the breaker strip will still be firmly mounted to the cabinet foam insulation Gently lift the breaker strip away from the cabinet to remove Reverse the procedure to re install breaker strips INSULATION HEATER WIRE BEHIND BREAKER STRIP BREAKER MOUNTING SCREW REPLACE FACE BREAKER WIRE STRIP BREAKER STRIP Fig 8 Heater Breaker Cap Detail IV a REPLACING THE CONDENSER FAN MOTOR AND OR BLADE WARNINGS 1 DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AND FOLLOW LOCKOUT TAGOUT PROCEDURES STEP 1 Remove the louver assembly completely STEP2 Remove the screws holding the fan motor bracket to the compressor mounting base STEP3 Remove the blade from the motor shaft by removing the nut NOTE Install the concave side of the fan blade toward the motor NOTE If the blade is all that is being replaced stop here and reverse procedure to install STEP4 Remove the mounting bracket from the motor STEP 5 Disconnect the lead wires at the compressor junction box STEP 6 Reverse the procedure to install IV b REPLACING THE CONDENSER COIL WARNINGS 1 DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AND FOLLOW LOCKOUT TAGOUT PROCEDURES 2 THIS PROCEDURE REQUIRES THE US
3. 1 Conditions a Unit operating in normal mode 2 Defrost initiated by temperature control a Control turns OFF the evaporator fan 3 Defrost terminated by either 1 Maximum Set Time Interval or 2 Evaporator Coil Temperature a Defrost heater turns OFF b Drain pan heater turns OFF if so equipped 4 Cabinet returns to normal operation a Temperature controlled by controller b Evaporator fan stays OFF until evaporator coil reaches desired temperature Pumps refrigerant thru refrigeration system components and com presses the low pressure vapor to high pressure vapor Condenser Fan Draws air across condenser coil to aid in removing heat from the refrigerant and moves air across compressor to aid in cooling the compressor Evaporator Blower Defrost Heater Start Capacitor Run Capacitor Door Switch Contactor Temperature Controller Draws air from the cabinet and pulls the air thru the evaporator coil Defrosts evaporator coil operates only during defrost cycle Stores electrical charge which helps start the compressor motor Helps keep the compressor motor running after starting A concealed switch which operates the interior incandescent lights Controls voltage to compressor motors Electronic control which regulates the interior temperature of the cabinet and powers ON and OFF the auxiliary fans and heaters needed for even thaw operation Door Perimeter Heater 11 Heats door ope
4. Access the refrigeration system note see section V a SYSTEM ACCESS 2 Attach gauge manifold set to the system low side to process tube on the compressor and the high side to the process tube on the drier 3 Connect refrigerant bottle to the center of gauge manifold and open the valve on the bottle Bleed charg ing hose at the manifold gauge to remove air from the system 4 Open valve on low side of gauge manifold and charge system with one ounce of R 22 5 Close low side valve on gauge manifold and the valve on the refrigerant bottle 6 Disconnect refrigerant bottle and connect nitrogen bottle V c REFRIGERANT LEAK CHECK cont d NOTE The use of a nitrogen requlator is required 7 Set output valve on nitrogen valve to 120 psi 8 Open nitrogen bottle valve and low side gauge mani fold valve Allow pressure to equalize 9 Shut off both valves and disconnect nitrogen bottle 10 Use a leak detector or a thick soapy solution and check for leaks at all tubing connections A If leaks are found repair leaks and repeat process B If no leaks are found evacuate system as outlined in section V d EVACUATING SYSTEM 11 Charge the system and check for proper opera tion V d EVACUATING SYSTEM Introduction Refrigeration reclaiming equipment is required Our goal in system evacuation is to remove all the non condensables possible No evacuation method will remove 100 of the moisture and air
5. replace liquid line drier with a CW style drier Remove the suction drier but do not replace 11 Evacuate and charge system as outlined under EVACUATING SYSTEM and CHARGING SYSTEM V h HEATER TEST DOOR PERIMETER HEATER 1 Access the heater wire around the door frame 2 Plug the unit in and verify 120 volt supply to the heater 3 The reading should be 25 amp V i HEATER TEST DEFROST HEATER WARNING UNPLUG UNIT BEFORE SERVICING 1 Access the heater lead wire to the defrost heater 2 Plug the unit in turn the defrost timer to start a de frost cycle 3 Verify 120 volt supply to the heater 4 The reading should be 3 7 amp 5 If you want to perform a continuity check a Unplug the unit b Disconnect the lead wires to the heater c Use an ohmmeter to check for 32 4 ohms 10 ELECTRICAL OPERATION VI a NORMAL OPERATION 1 Conditions a Unit connected to correct voltage b Defrost settings correct c Condensing unit controlled by temperature control d Cabinet at desired temperature e Door perimeter heaters are powered f Evaporator fan powered g Temperature control operating correctly 2 Cabinet temperature rises above set temperature a Temperature control initiates compressor operation b Evaporator fan should be ON 3 Set temperature is met a Conditions return to those outlined in step 1 VI c COMPONENT FUNCTION Compressor VI b DEFROST MODE
6. from within the refrigeration circuit Because of this guide lines and methods must be developed and adhered to ensuring only harmless amounts of contaminants re main in the system GUIDELINES WARNING DO NOT PRESSURIZE SYSTEM ABOVE 150 PSIG PRIOR TO EVACUATION OR DURING LEAK TEST PROCEDURES Use only a two stage vacuum pump 2 CFM or greater and electronic micron gauge Evacuate from high and low sides of the system No chemical additive or alcohols are to be used to dry up a system Blow down of system with DRY NITROGEN prior to evacuation is acceptable and many times desirable See System Clean Up Evacuate to 200 microns VI SERVICE PROCEDURES amp ADJUSTMENTS cont d WARNING CERTAIN PROCEDURES IN THIS SECTION REQUIRE ELECTRICAL TEST OR MEASUREMENTS WHILE POWER IS APPLIED TO THE MACHINE EXERCISE EXTREME CAUTION AT ALL TIMES IF TEST POINTS ARE NOT EASILY ACCESSIBLE DISCONNECT POWER ATTACH TEST EQUIPMENT AND REAPPLY POWER TO TEST V d EVACUATING SYSTEM GUIDELINES cont d PROCEDURE WARNING DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AT THE MAIN CIRCUIT BOX PLACE A TAG ON THE CIRCUIT BOX INDICATING THE CIR CUIT IS BEING SERVICED WARNING THIS PROCEDURE REQUIRES THE USE OF REFRIGERANTS BE CERTAIN THE WORK AREA IS WELL VENTILATED SAFETY GOGGLES AND GLOVES SHALL BE WORN SINCE REFRIGERANTS MAY CAUSE BURNS TO THE SKIN 1 Access the refrigeration system as outlined under SYSTEM ACC
7. AND FOLLOW LOCKOUT TAGOUT PROCEDURES Ill f DOOR GASKETS To remove the gasket to be replaced grasp it firmly by one corner and pull it out Before attempting to install a new gasket both the unit and the gasket itself must be at room temperature Insert the four corners first by using a rubber mallet or hammer with a block of wood After the corners are properly inserted work your way towards the center from both ends by gently hitting with a mallet until the gasket is completely seated in place see figure 7 for proper gasket place ment Inside Door Pan Gasket Assembly Vertical Gasket Retainer Fig 7 Gasket Detail NOTE The gasket may appear too large but if it is installed as indicated above it will slip into place Ill g DRAIN PAN To remove the drain pan begin by removing the evapo rator housing cover as outlined in section IIl c Next remove the screws and brackets which secure the drain pan and remove the drain tube from the drain pan Finish by sliding the drain pan out from under the coil Reverse the procedure to install EXTERIOR SIDE MOUNTED HEATER lll h DOOR BREAKER STRIPS The door breaker strips can be removed to provide access to the door perimeter heaters All cabinet heater wires are face mounted as shown in figure 8 Face mounted heater wires are located inside the foam Replacement of heater wires can be performed by following procedure IV g REPLACING THE ANTI
8. E OF REFRIG ERANTS BE CERTAIN THE WORK AREA IS WELL VENTILATED SAFETY GOGGLES AND GLOVES SHALL BE WORN SINCE REFRIGERANTS MAY CAUSE BURNS TO THE SKIN STEP 1 Remove the louver assembly completely STEP2 Recover the refrigerant in the system following the current EPA Guidelines for refrigerant recovery NOTE The use of reclaiming equipment is required STEP 3 Disconnect the input and output lines to the condenser coil at the soldered joints closest to the condenser STEP4 Remove the four 4 screws which secure the condenser coil to the condensing unit base and remove the coil from the cabinet STEP 5 Remove the shroud from the coil for installation to the new coil STEP 6 Reverse the procedure to install the new fan motor STEP 7 Install a new drier STEP8 Chargethe refrigeration system as outlined under CHARGING SYSTEM in SERVICE PROCEDUES AND ADJUSTMENTS 9 Reconnect power to the unit IV c REPLACING THE COMPRESSOR WARNINGS 1 DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AND FOLLOW LOCKOUT TAGOUT PROCEDURES IV d REPLACING THE DOOR PERIMETER HEATERS WARNINGS 1 DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AND FOLLOW LOCKOUT TAGOUT PROCEDURES 2 THIS PROCEDURE REQUIRES THE USE OF REFRIG STEP 1 Remove the four stainless steel breaker strips ERANTS BE CERTAIN THE WORK AREA IS WELL around the door perimeter by removing the VENTILATED SAFETY GOGGLES AND GLOVES screws wh
9. ESS 2 Connect low blue side of gauge manifold to schrader valve on compressor process line and high red side of gauge manifold to schrader valve on fil ter drier process line 3 Connect center line of gauge manifold to vacuum pump 4 Turn vacuum pump on and open both sides of gauge manifold 5 Pull a vacuum to 200 microns 6 Break the vacuum with 3 psig of dry nitrogen 7 Repeat steps 5 and 6 8 Pull vacuum to 200 microns 9 Charge system and check for proper operation V e CHARGING SYSTEM WARNING DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AT THE MAIN CIRCUIT BOX PLACE A TAG ON THE CIRCUIT BOX INDICATING THE CIR CUIT IS BEING SERVICED WARNING THIS PROCEDURE REQUIRES THE USE OF REFRIGERANTS BE CERTAIN THE WORK AREA IS WELL VENTILATED SAFETY GOGGLES AND GLOVES SHALL BE WORN SINCE REFRIGERANTS MAY CAUSE BURNS TO THE SKIN 1 Access the refrigeration system 2 Attach gauge manifold set to system low side to process tube on the compressor and the high side to the process tube on the drier NOTE See SYSTEM ACCESS V e CHARGING SYSTEM cont d 3 Be sure the system is properly leak checked and evacuated before charging as outlined under LEAK CHECK and EVACUATING SYSTEM 4 Make certain both valves are closed on the gauge manifold Open the valve on the bottle Bleed charg ing hose at the manifold gauge to remove air NOTE Initially charge system through high side to prevent liqui
10. EXTREME CAUTION AT ALL TIMES IF TEST POINTS ARE NOT EASILY ACCESSIBLE DISCONNECT POWER ATTACH TEST EQUIPMENT AND REAPPLY POWER TO TEST V a SYSTEM ACCESS external indicators should be checked as part of system diagnosis before determining the refrigerant pressures Improper access may expose the refriger antto contaminates and non condensables which will result in system failure V b SWEAT ON PIERCING VALVES NOTE Sweat on piercing valves are used for system diagnostics but may be left on after service is com plete They may be installed while the system is fully charged 1 Place one piercing valve on the compressor pro cess tube and one on the liquid line drier process tube Follow the installation instructions provided by the manufacturer of the piercing valve 2 When complete follow the guidelines as outlined under LEAK CHECK and EVACUATING SYSTEM V c REFRIGERANT LEAK CHECK DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AT THE MAIN CIRCUIT BOX PLACE A TAG ON THE CIRCUIT BOX INDICATING THE CIRCUIT IS BEING SERVICED THIS PROCEDURE REQUIRES THE USE OF REFRIG ERANTS BE CERTAIN THE WORK AREA IS WELL VENTILATED SAFETY GOGGLES AND GLOVES SHALL BE WORN SINCE REFRIGERANTS MAY CAUSE BURNS TO THE SKIN NOTE The use of R 22 in small quantities is recom mended as a trace gas for leak detection NOTE This leak check procedure is to be used only after the refrigerant has been properly reclaimed 1
11. Models Lock Keys T 42 Lock Cylinder Lock Bolt Lock Keeper Reach In Lock Keeper Roll in Alarm Indicator Light Start Capacitor Terminal Block Thermal Fuse Mullion Heater Blower Harness Panel Air Duct Cover Air Duct Channel Heaters Thermometer Heater Relay 2 Pole Relay 30 Amp Transformer Temperature Sensor No 1 Type Tray Slide LOUVER ASSEMBLY 500 60138 06 351 15822 02 2 Section N Reach In Models Louver Screws For All Above CABINET SUPPORTS 344 13168 01 344 13140 01 351 15822 02 6 High Adjustable Stainless Steel Leg 6 High Locking Caster Caster Bolts For Above HINGES SER 28583 00 Door Hinge 344 28484 00 Actuator TEMPERATURE CONTROL 324 60027 00 LIGHTS 333 60241 00 337 30858 00 378 29776 00 Even Thaw Control Lamp Holder 56 LG Light Cover Flush Mounted Incandescent Light Bulb 13 IX TROUBLESHOOTING WARNING CERTAIN PROCEDURES IN THIS SECTION REQUIRE ELECTRICAL AND REFRIGERA TION SYSTEM TEST OR MEASUREMENTS WHILE POWER IS APPLIED TO THE MACHINE EXEERCISE EXTREME CAUTION AT ALL TIMES IF TEST POINTS ARE NOT EASILY ACCESSIBLE DISCONNECT POWER ATTACH TEST EQUIPMENT AND REAPPLY POWER TO TEST Compressor will not run compressor has no current draw Main circuit breaker open Compressor overload tripped Cabinet temperature satisfied Wired wrong or faulty connection Temperature control malfunction Start component malfunction Compressor motor windings open Compres
12. Traulsen Refrigeration SERVICE MANUAL 09 Instructions For The Troubleshooting And Repair Of Traulsen R Series Even Thaw Refrigerator Models RET232NUT FHS amp RET232NUT HHS NOTICE This Manual is prepared for the use of trained Authorized Traulsen Service Agents and should not be used by those not properly qualified This manual is not intended to be all encompassing but is written to supplement the formal training on the job experience and other product knowledge acquired by Autho rized Traulsen Service Agents Before proceeding with any work you should read in its entirety the repair procedure you wish to perform to determine if you have the necessary tools instruments and skills required to perform the procedure Procedures for which you do not have the necessary tools instruments and skills should be performed only by a trained Authorized Traulsen Service Agent Reproduction or other use of this Manual without the express written consent of Traulsen is prohibited FORM NUMBER TR35845 REVISED 12 04 TABLE OF CONTENTS l THE SERIAL TAG Il GENERAL INFORMATION Introduction Model Designations Wiring Diagrams Installation See Owner s Manual Cleaning Tools Refrigeration System Theory Of Operation Air Flow Requirements Control Location Specifications Operating Data Chart REMOVAL amp REPLACEMENT OF PARTS Standard Incandecent Lights Louver Assembly Evaporator Housing Cover Removing The Door Do
13. ch Refrigerant Reclaim Unit REF N SYSTEM THEORY OF OPERATION The refrigeration system is the mechanism whereby heat is transferred from the cabinet to the outside air It works under the principle that the heat moves from hot to cold as it tries to establish equilibrium The temperature control control signals a need for heat to be removed from the cabinet The compressor be gins by compressing the refrigerant gas as it is dis charged The high pressure refrigerant now circulates through the condenser removing heat from the refrig erant and condensing it into a liquid From there the refrigerant flows to the filter drier which removes all traces of moisture and particles from the system After the filter drier the refrigerant passes through a metering device Traulsen uses a thermostatic ex pansion valve to regulate the flow of refrigerant into the evaporator coil In the evaporator coil heat is transfered from the cabi net to the refrigerant which changes from a cold liq uid to a warm low pressure gas When the desired cabinet air temperature has been reached the tem perature control shuts off the compressor Evaporator Thermostatic Expansion Valve lt Liquid A Line 7 Blower Compressor Filter Drier Discharge Hot Gas Line Condensate Evaporator Fig 1 The Traulsen Refrigeration System Il GENERAL INFORMATION cont d Il h AIR FLOW REQUIREMENTS In or
14. d refrigerant from reaching compressor 5 Open the high side gauge valve red Allow refrig erantto flow into the system until the nameplate charge is reached or until the high side will not accept any more refrigerant At this point shut the gauge and bottle valves 6 Reconnect power to the unit and check for proper operation and high pressure leaks 7 Add the remaining amount of refrigeration charge through the low side with the compressor running 8 Check for proper operation and leaks 9 Disconnect power to the unit and replace any cov ers removed V f SYSTEM CLEAN UP INTRODUCTION When a compressor burn out or moisture infiltration is encountered the service person must make the determination as to the degree of system contamina tion Normally a compressor burn out will fit into one of three catagories CONTAINED compressor oil not acidic no oil dis coloration CONTAMINATED COMPRESSOR oil acidic discoloration of oil contamination limited to compressor MASSIVE CONTAMINATION contaminated oil and or refrigerant pumped through system CONTAINED 1 Replacement of liquid line drier 2 Install suction filter drier for clean up and then re move it when service is complete Usually within 48 hours 3 Replacement of compressor 4 Evacuation to 200 microns 5 Charge by weight CONTAMINATED COMPRESSOR The contaminated compressor requires the same procedure as the contained burn out Plus th
15. der to assure optimum performance the condens ing unit of your Traulsen unit MUST have an adequate supply of air for cooling purposes Therefore the op erating location must either have a minimum of 12 clearance overhead of the condensing unit or allow for unrestricted air flow at the back of the unit The louver panel must remain free and clear of obstruc tion The condenser coil must be kept clean see ll e Please note that clearance of at least 12 above is re quired in order to perform certain maintenance tasks Il i CONTROL LOCATION On all Even Thaw refrigerator models the temperature control is located on the evaoprator housing behind the louvers Il SPECIFICATIONS R Series Even Thaw Refrigerator ET232N 1 2 HP 4750 10 0 5 0 R 404A Horsepower Condensing Unit BTU HR Condensing Unit Amp Draw Fan Lights Etc Amp Draw Refrigerant Refrigerant Charge oz 20 Il k OPERATING DATA CHART Even Thaw Models Cabinet Temperature Set at 38 F AMBIENT 70 F 100 F SUCTION PRESSURE 45 PSIG 50 PSIG SUCTION TEMPERATURE 11 F 15 F DISCHARGE PRESSURE 240 PSIG 360 PSIG DISCHARGE TEMPERATURE 100 F 130 F lll REMOVAL amp REPLACEMENT OF BASIC PARTS WARNING DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AT THE MAIN CIRCUIT BOX PLACE A TAG ON THE CIRCUIT BOX INDICATING THE CIRCUIT IS BEING SERVICED Ill STANDARD INCANDESCENT LIGHTS Lights are usually located
16. e sys tem must be flushed with nitrogen after the compres sor and drier has been removed V SERVICE PROCEDURES amp ADJUSTMENTS cont d WARNING CERTAIN PROCEDURES IN THIS SECTION REQUIRE ELECTRICAL TEST OR MEASUREMENTS WHILE POWER IS APPLIED TO THE MACHINE EXERCISE EXTREME CAUTION AT ALL TIMES IF TEST POINTS ARE NOT EASILY ACCESSIBLE DISCONNECT POWER ATTACH TEST EQUIPMENT AND REAPPLY POWER TO TEST V f SYSTEM CLEAN UP INTRODUCTION cont d MASSIVE CONTAMINATION The replacement compressor MUST NOT be installed until after system clean up procedures have been com pleted 1 Remove the burned out compressor as outlined under COMPRESSOR in Section IV f 2 Remove the TXV metering device 3 Purge nitrogen through the high and low sides of system until moisture and contaminated oil has been removed from the remaining components of the sys tem 4 Reassemble refrigeration system and add an CW style liquid drier and a suction line drier 5 Purge nitrogen through the high and low sides of system for 5 minutes 6 Evacuate refrigeration as outlined under EVACU ATING SYSTEM for 30 minutes Repeat nitrogen purge and evacuation two more times 7 Charge system as outlined under CHARGING SYS TEM Allow for the increased liquid capacity of the liquid line drier 8 Reconnect power and check for proper operation 9 Disconnect power and install any panels removed 10 Return between 24 and 48 hours to recover gas
17. ich secure each to the cabine SHALL BE WORN SINCE REFRIGERANTS MAY CAUSE BURNS TO THE SKIN STEP2 Disconnect lead wires and ground to heater from the unit STEP 1 Recover the refrigerant in the system following the current EPA Guidelines for STEP 3 the replacement heater remove the paper refrigerant recovery backing and install in door frame behind front flange screw holes NOTE The use of reclaiming equipment is required TEP 4 care not to pinch the heater wires at the STEP2 Remove the compressor junction box cover corners of the door frame channel STEP 3 Disconnect all wire leads coming into the 5 Connect the lead wires and attach the ground junction box wire STEP 4 Disconnect the input and output lines to the STEP 6 Replace and secure the four stainless steel compressor breaker strips to the door frame Be careful not to force the breaker caps into the corners STEP 5 Remove the compressor which is secured by four 4 nuts STEP 6 Install the new compressor and connect the input and output lines STEP 7 Connect the lead wires at the junction box STEP8 Install a new drier 9 Charge refrigeration system as outlined under CHARGING SYSTEM in SERVICE PROCEDUES AND ADJUSTMENTS STEP 10 Reconnect power to the unit V SERVICE PROCEDURES amp ADJUSTMENTS WARNING CERTAIN PROCEDURES IN THIS SECTION REQUIRE ELECTRICAL TEST OR MEASUREMENTS WHILE POWER IS APPLIED TO THE MACHINE EXERCISE
18. in the front center of the unit mounted on the interior top To replace the light bulb first remove the light cover by squeezing the sides to gether which releases the tabs from the holding slots Replace the burned out light bulb with a similar type appliance bulb To replace the light cover squeeze the sides together and reinsert tabs in to the holding slots and release to lock in place Ill b LOUVER ASSEMBLY To remove the louver assembly first remove the two screws located on both sides at the bottom of the lou ver assembly see figure 2 Once the screws are re moved the panel can be pivoted upwards allowing full access to the front facing condenser see figure 3 Fig 2 Remove Screws Fig 3 Lift Up Louvers When finished lower the louver assembly and replace the screws to hold it in place lll REMOVAL amp REPLACEMENT OF BASIC PARTS WARNING DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AND FOLLOW LOCKOUT TAGOUT PROCEDURES Ill EVAPORATOR HOUSING COVER Remove the screws on top of the evaporator housing Lift off the housing cover to complete removal see figure 4 Fig 4 Lift Off Cover Reverse the procedure when done to reinstall mak ing sure that the gasket forms a tight seal Ill d REMOVING THE DOOR The door can be easily removed from the cabinet To remove the door remove the plug at the bottom of the top hinge Inside the hinge there is a small screw which
19. ng Number of defrost cycles too few Defrost duration too short Cabinet air leak Drain tube plugged Defrost heater not working Non frozen product put into cabinet Coil sensor failure Sensor Light Illuminated 1 Slow or inadequate thawing Check position of Cool Thaw switch Moisture Condensing Around Door Perimeter 1 Excessively humid environment Turn on Door perimeter heaters using defogger switch 14
20. ning to prevent condensate from forming VII WIRING DIAGRAM 120VAC 20A PLUG TOP MULLION BLOWER WHITE POWER N O COOL SWITCH CAPACITOR BLACK N C THAW BOTTOM MULLION BLOWER DEFOG SWITCH CAPACITOR DOOR HEATERS HTR1 EVAPORATOR BLOWER CAPACITOR CENTER MULLION BLOWER DOOR SWITCH LIGHT CAPACITOR SW3 COMPRESSOR RELAY BLACK 4 Q OVERTEMP HEATER SSR RELAY CONTROL EVEN THAW CABINET COIL 120VAC 60HZ 1PH 379 60358 00 SENSOR SENSOR PRINTED IN U S A 12 NOTE Part numbers listed are for standard products as currently manufactured For products manufactured as other than standard or for older production units please contact the factory PART NO Vill PARTS LISTING NAME OF PART HALF LENGTH REACH IN DOORS 200 60136 00 200 60136 01 2 Section N Width Models Hinged Right 2 Section N Width Models Hinged Left FULL LENGTH REACH IN DOORS 200 60135 00 200 60135 00 DOOR GASKETS 341 60060 00 341 60259 00 DOOR LOCKS 346 28924 42 346 13186 42 346 13189 00 SER 60443 00 SER 60434 00 OTHER 378 60013 00 337 60006 00 337 60032 00 337 31075 02 329 60048 00 333 60051 00 601 60809 00 601 60811 00 601 60814 00 344 60126 00 337 60311 00 337 60324 00 337 60309 00 337 60308 00 TRAY SLIDES 701 60032 00 2 Section N Width Models Hinged Right 2 Section N Width Models Hinged Left Gasket Half Length 2 Section N Width Models Gasket Full Length 2 Section N Width
21. or Hinge Snap In Door Gaskets Condensate Drain Pan Door Breaker Caps REPLACING THE CONDENSER FAN MOTOR AND OR BLADE CONDENSER COIL COMPRESSOR DOOR BREAKER CAPS lt C C Coo ION IO IO IO ID V SERVICE PROCEDURES amp ADJUSTMENTS a System Access 8 b Sweat On Piercing Valves 8 Refrigerant Leak Check 8 d Evacuating System 8 9 e Charging System 9 f System Clean up 9 10 g Heater Test Door Perimeter Heater 10 h Heater Test Defrost Heater 10 VI ELECTRICAL OPERATION a Sequence Of Operation Normal Operation 11 b Sequence Of Operation Defrost Mode 11 Component Function 11 WIRING DIAGRAMS 12 Vill PARTS LISTING 13 IX TROUBLESHOOTING 14 For Questions Please Contact Traulsen Service At 800 825 8220 Traulsen FORT WORTH TX SERIAL MODEL VOLTS Hz PH TOTAL CURRENT AMPS MINIMUM CIRCUIT AMPS MAXIMUM OVERCURRENT PROTECTION LIGHTS WATTS HEATERS AMPS REFRIGERANT TYPE DESIGN PRESSURE HIGH REFRIGERANT TYPE DESIGN PRESSURE HIGH 370 60294 00 REV A LISTED Il THE SERIAL TAG The serial tag is a permanently affixed sticker on which is recorded vital electrical and refrigeration data about your Traulsen product as well as the model and serial number This tag is located in the upper right interior compartment on all reach in pass thru and roll in roll thru refrigerator freezer and dual temp
22. ot necessarily covered by the diagrams contained within Should you require a wiring diagram for a specific unit please contact Traulsen Service at 800 825 8220 and provide the model and serial number of the unit involved Il d INSTALLATION Generally R Series refrigeration products are in stalled by the dealer or others contracted by the dealer or owner Detailed installation instructions are included with each unit Il e CLEANING Detailed cleaning instructions are included with each unit however special care MUST be given to the con denser coil The condenser coil must be cleaned at a minumum of every six months Your particular application may require more frequent intervals This can be done with a vacuum cleaners using a brush attachment or a stiff brush or wisk broom For more information please refer to the Owner s Manual sup plied with the unit Your Traulsen unit may incorporate a washable re usable wire mesh filter on the condensing unit Clean it with soap and water or in a dishwasher ll f TOOL REQUIREMENTS For most jobs a standard set of hand tools a VOM and AC current tester along with a temperature tester or thermometer are adequate However in some cases the following additional tools may be required as well Refrigeration Guage Manifold Refrigeration Reclaiming Equipment Acetylene Torch Anti Static Grounding Kit TL 84919 Nitrogen Bottle With Gauges Thin 5 16 Open End Wren
23. secures the door in place Remove this with a flat head screwdriver and the door can then be lifted off the hinge see figure 5 HINGE ASSEMBLY Fig 5 CABINET DOOR JAMB Ill e DOOR HINGE The hinge can be easily removed from the cabinet To remove the door follow the instructions listed in sec tion Ill d To remove the door portion of the hinge from the door lift off the hinge cover and then remove the three Phillips head screws which secure the hinge in place on the door see figure 6 To remove the cabinet por tion of the hinge remove the three Phillips head screws which hold it in place On solid door units the top hinge s contains a microswitch for controlling the interior lighting SWITCH ACTUATOR CAM SURFACE HOUSING SUB ASSEMBLY PIN 344 28482 00 ADJUSTMENT PLATE A PIN 344 28485 00 SCREW PIN 351 27968 00 3 REQUIRED h SCREW 1 LONG 351 41351 00 Pi 3 REQUIRED ACTUATOR BUTTON PIN 344 28484 00 SWITCH Pa BY TRAULSEN PIN 337 28235 00 WHEN INTERIOR LIGHT IS USED HINGE COVER 4 PIN 344 28486 00 BRACKET SUI ASSEMBLY PIN 344 28487 00 screw PIN 344 28483 00 PLUG vs PIN 344 28489 00 NOT USED WHEN SCREW IS INSTALLED Fig 6 To reassemble the hinge reverse the previous proce dure lll REMOVAL amp REPLACEMENT OF BASIC PARTS cont d WARNING DISCONNECT THE ELECTRICAL POWER TO THE MACHINE
24. sor will not run current draw and trips overload Low voltage Start component malfunction Compressor windings shorted Locked rotor Excessive discharge pressure Compressor short cycles on overload Low voltage Low refrigerant charge Dirty condenser coil Wired wrong or faulty connection Condenser fan inoperative Run capacitor malfunction Start component malfunction Temperature control malfunction High head pressure Compressor short cycles Improper air flow over evaporator coil Low ambient conditions Temperature control malfunction Bad sensors Temp differential set too close Continuous unit operation Loss of refrigerant Excessive door openings Temperature control malfunction Broken compressor valves Very dirty condenser Compressor run time lengthy Partial loss of refrigerant High ambient conditions Dirty condenser coil or improper air flow over condenser coil Excessive product load Excessive door openings Door gasket requires replacement Temperature control malfunction Contaminates in refrigeration system Compressor valve leakage 0 Inadequate defrost cycle SO OND OB CN Low suction pressure Expansion valve restricted Drier plugged Loss of refrigerant Poor air flow Iced evaporator coil High head pressure Improper air flow across condenser High ambient conditions Overcharge of refrigerant Air in system Dirty condenser coil Coil ici
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