Carrier 52-2038-01 Скачать руководство пользователя страница 36 | Manualshive

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EVAPORATOR COIL REMOVAL

– continued

10.

Sub Top

11.

Air Diverter

12.

Defrost Termination Bulb Well

The view below illustrates the evaporator coil and
tube connections on the lefthand end of the cabi-
net. Take care when reinstalling the coil housing
cover. Reseal areas where moisture could migrate
down into the coil area. This coil area runs at a
temperature of -40°F.

13.

Upper Coil Inlet

14.

Upper Coil Outlet

MAINTENANCE & REPAIR

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Содержание 52-2038-01

Страница 1: ...SERVICE INSTALLATION MANUAL CARRIER COMMERCIAL REFRIGERATION INC Providing BEVERAGE AIR FRIGIDAIRE KELVINATOR UNIVERSAL NOLIN Products Services Frozen Food Ice Cream Merchandisers CMCT 2 03 51 1021 01...

Страница 2: ...ned in this manual which should be retained in a convenient location for future reference All data and information in this manual is subject to change without notice MODEL DESIGNATION INFORMATION 115V...

Страница 3: ...SECTION I Introduction...

Страница 4: ...length Operating ambients range from 70 F to 85 F with cavity temperatures at load line between 0 F to 20 F Except for routine cleaning these cabinets will require little maintenance In the unusual ev...

Страница 5: ...Models 4 6 8 Export 14 Lamp Wiring Detail Upper Raceway 15 MAINTENANCE REPAIR Cabinet Temperature Control 19 Electrical Box Layout 20 Defrost Timer Layout 21 Cabinet Electrical Supply 22 Condensing U...

Страница 6: ...vity Coil Cold Wall Fin Tube Gravity Coil Cold Wall Fin Tube Gravity Coil Cold Wall Fin Tube Gravity Coil Cold Wall Refrigerant Type R404A R 404A R 404A R 404A Refrigerant Control Capillary Capillary...

Страница 7: ...minimum clearance behind for proper air circulation The cabinet must be installed on a sturdy solid level floor The cabinet must be located so it can be plugged or wired into a properly grounded thre...

Страница 8: ...s utilizing 404A refrigerant 1 2 HP on the CMCT 4 and CMCT 6 3 4 HP on the CMCT 8 1 HP on the CMCT 10 A back pressure valve is used to protect the compres sor against excessive pressures during initia...

Страница 9: ...is wired in series with the defrost heater This thermostat will also open the heater circuit when the top coil reaches 76 F should any malfunction of the defrost thermostat occur Any time the system...

Страница 10: ...d Breaker Heater behind 960 15 12 120 each End Breaker Glass Heater around 134 107 89 120 Front Glass CMCT 6 OHMS WATTS AMPS VOLTS Def Heater on Bottom side 15 9 904 7 5 120 of Top Coil Control Bellow...

Страница 11: ...RIG OZ TUBE SUCT DISCH SETTING TEMP CMCT 4 8 0 115V 6 8 115V 404A 22 8 x 042 ID 2 225 No 7 22 F CMCT 6 8 0 115V 8 4 115V 404A 23 8 x 042 ID 5 223 No 7 19 F CMCT 8 12 0 115V 12 0 115V 404A 27 7 x 049 I...

Страница 12: ...t Glass Heated Glass Lid 41 3 14 58 24 each ECMCT 6 OHMS WATTS AMPS VOLTS Def Heater on Bottom side 51 904 4 2 215 of Top Coil Control Bellows Heater below 5375 9 04 215 Def Controls End Breaker Heate...

Страница 13: ...12 INTRODUCTION WIRING DIAGRAM 00 1667 00 CMCT 4 6 8...

Страница 14: ...INTRODUCTION 13 WIRING DIAGRAM 00 1670 00 CMCT 10...

Страница 15: ...14 INTRODUCTION WIRING DIAGRAM 00 1934 00 ECMCT 4 6 8 Export Models...

Страница 16: ...INTRODUCTION 15 LAMP WIRING DETAIL Upper Raceway Typical...

Страница 17: ...SECTION II Maintenance Repair...

Страница 18: ...apillary is inserted in a copper bulb well just to the right of the control The well is approximate ly 20 long and is secured to the cold wall evaporator The control reacts to the evaporator temperatu...

Страница 19: ...n be pulled out for component troubleshooting The following components are located within the box CAUTION 1 Defrost Timer 1 24 Hours 5 Main Terminal Board 2 Run Capacitor 6 115V Power Supply Switch 11...

Страница 20: ...t time of day by turning the inner knob counterclockwise until the correct time is opposite the time indicator on the clock The time clock is set to go into defrost once every 24 hours This defrost oc...

Страница 21: ...must be on a dedicated cir cuit unto themselves Failure to do so could result in loss of product Wiring and connections in power supply system must meet all applica ble local and national electrical c...

Страница 22: ...to aid service personnel in the event service is needed Disconnect the power supply before servicing the cabinet 1 Remove front grill 2 Remove two 2 hold down bolts that are located in the front base...

Страница 23: ...CONDENSING UNIT LAYOUT 24 MAINTENANCE REPAIR...

Страница 24: ...IT COMPARTMENT REAR CMCT 10 models still use fin and tube condensers NOTE 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 1 Accordian Coil 2 Process Tube Evaporator 3 Suction Line 4 Cap Tube Inlet MAINTENANCE REPAIR...

Страница 25: ...n the top left back wall NOTE EVAPORATOR TANK WRAP RIGHTHAND REAR OF CABINET Capillary tube and heat exchange are foamed in place Three lines exit the cabinet shell 11 1 4 Process Line 12 Capillary Tu...

Страница 26: ...s used are polyol esters Special consideration must be made when handling these oils Processing procedures must be more rigorous to avoid absorbing moisture Also P O E s are better solvents which mean...

Страница 27: ...SIG and should not be changed To check this setting it is necessary that the pressure on the inlet side or evaporator side of the valve be above 10 PSIG Put cabinet into defrost cycle to obtain high l...

Страница 28: ...cal box is connected via a wiring harness to the upper lighting channel which houses the following components CAUTION 1 Product Reflector 4 Light Ballast 2 Defrost Termination Control 5 Lamp Receptabl...

Страница 29: ...st behind the light fixture at the warm air intake to coil The baffle can be accessed by removing screws located at the bottom edge of V baffle The heater is attached at the back side of the V baffle...

Страница 30: ...ews in the end panel breaker A and pull breaker down and out 2 Disconnect heater leads from end panel breaker heater A and pull end panel breaker out 3 To remove end panel breaker heater remove tape C...

Страница 31: ...abinet 1 Disconnect the defrost heater leads located on the lower right hand side of the lamp channel Figure 1 2 Remove the air diverter shown as Figure 2 This will expose the defrost heater rack whic...

Страница 32: ...UPPER CROSS SECTION CMCT Models...

Страница 33: ...ws in end track B Pull track forward and lift up Typical both ends Not necessary for glass removal 5 Remove two 2 screws in the front of center track G and swing center track from dotted line position...

Страница 34: ...in order to service various interior components as shown below 1 Product Reflector 4 Upper Electrical Component Housing 2 Defrost Heater Plug 5 Righthand Arm Heater Leads 3 Lamp MAINTENANCE REPAIR 35...

Страница 35: ...bulb well Lift the sub top up and out of the cabinet CAUTION 1 Defrost Termination High Limit Control 3 Defrost Heater Receptacle 2 Defrost Termination Bulb Well 4 Sub Top G Lift the insulation up and...

Страница 36: ...connections on the lefthand end of the cabi net Take care when reinstalling the coil housing cover Reseal areas where moisture could migrate down into the coil area This coil area runs at a temperatu...

Страница 37: ...ck mechanism off defrost Should this thermostat be in the closed position when the clock trips into the defrost cycle it will immediately trip it off again NOTE Switch between terminals 1 2 will not o...

Страница 38: ...SECTION III Parts List...

Страница 39: ...ertical Trim Post RH 6 Center Track 11 Nameplate 2 End Track LH 7 Glass Lid 12 Front Bumper 3 Countertop 8 Glass Rail 13 Bumper Trim 4 End Trim 9 Front Glass 14 Front Trim Panel Upper 5 Lighted Sign 1...

Страница 40: ...19 0458 00 19 0458 00 19 0458 00 19 0458 00 Ballast Lamp 20 Watt 19 0146 00 Lamp Fluorescent 30 Watt 19 0150 00 19 0150 00 19 0150 00 19 0150 00 Lamp Fluorescent 20 Watt 19 0149 00 Lamp Fluorescent 34...

Страница 41: ...9 0911 00 19 0911 00 Ballast Lamp 20 Watt 19 0912 00 22 0200 Lamp Fluorescent 30 Watt 19 0150 00 19 0150 00 19 0150 00 Lamp Fluorescent 20 Watt 19 0149 00 Lamp Fluorescent 34 Watt 19 0151 00 Lampholde...

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