Movincool CLASSIC PLUS 14 Service Manual
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Movincool CLASSIC PLUS 14 Service Manual

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See also: Service Manual , Operating Manual
SERVICE
M A N U A L
CLASSIC PLUS 14
DENSO SALES CALIFORNIA, INC.
(800) 264-9573
www.movincool.com
REGISTERED TO ISO 9002
FILE NO. A5537
© 2000 DENSO SALES CALIFORNIA, INC.
All rights reserved. This book may not be reproduced or copied, in whole or in part, without the written permission
of the publisher. DENSO SALES CALIFORNIA, INC. reserves the right to make changes without prior notice.
MovinCool is a registerd trademark of DENSO CORPORATION.
DSCA P/N: LA990009-0379-E

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  • Page 1 All rights reserved. This book may not be reproduced or copied, in whole or in part, without the written permission of the publisher. DENSO SALES CALIFORNIA, INC. reserves the right to make changes without prior notice. MovinCool is a registerd trademark of DENSO CORPORATION. DSCA P/N: LA990009-0379-E...

  • Page 2: Definition Of Terms

    FOREWORD This manual has been published to service the MovinCool Classic Plus 14. Please use this service manual only when servicing the Classic Plus 14. DEFINITION OF TERMS WARNING: Describes precautions that should be observed in order to prevent injury to the user during installa- tion or unit operation.
  • Page 3 (condenser) to exhaust exchanged heat to the out- doors. Unlike conventional air conditioners, the MovinCool Spot Cooling System is a spot cooler which directs cool air to particular areas or objects. MovinCool Spot Cooling Systems have the following...
  • Page 4 CONSTRUCTION, SPECIFICATIONS & DATA Cool Air Duct Exhaust Air Duct Centrifugal Fan Capillary Tube Housing for Condenser Fan Condenser Caster with Brake Compressor Drain Switch Control Box Caster Construction of Classic Plus 14 MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 4...
  • Page 5 Upper Panel Fan Motor Side Panel Front Panel Condenser Fan Air Filter(condenser) Air Filter Evaporator Capillary Tube (evaporator) Accumulator Compressor Air Filter (condenser) Drain Tank Condenser Power Cord Casters Base Panel Construction Diagram MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 5...
  • Page 6 CONSTRUCTION, SPECIFICATIONS & DATA Basic Construction The MovinCool Spot Cooling System is compact in construction because the con- denser and the evaporator are enclosed in one unit. The interior is divided into three sections. The upper front face is equipped with the evaporator, while the lower front face contains the drain tank.
  • Page 7 (relative humidity) ..............113 F (45 C), < 50% ........................ 70 F (21.1 C), > 50% Control Device temperature control ................included two speed fan ..................included Specifications Specifications are subject to change without notice. MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 7...
  • Page 8 CONSTRUCTION, SPECIFICATIONS & DATA 26.5 21.1 16.6 20.6 12.5 25.6 19.4 Exterior Dimensions MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 8...
  • Page 9 (68) (77) (86) Wet Bulb Temperature ˚C (˚F) Cooling Capability Curve 45 (113) 40 (104) 35 (95) 30 (86) 25 (77) (77) (86) (95) (104) Wet Bulb Temperature ˚C (˚F) Power Consumption Curve MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 9...

  • Page 10: Refrigerant System

    • Condenser These parts are all connected by copper tubing. All the connections have been brazed. Condenser Evaporator Capillary Tube Compressor Accumulator REFRIGERANT FLOW CONDENSER ACCUMULATOR CAPILLARY MOTOR TUBE EVAPORATOR COMPRESSOR Refrigerant System MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 10...
  • Page 11 Heat is given off and absorbed by air being pulled across the condenser fins by the centrifugal fan and then expelled through the exhaust air duct. MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 11...
  • Page 12 This protects the compressor from possible damage caused by the intake of liquid refrigerant. To Compressor Accumulator MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 12...
  • Page 13 Condenser Inlet Pipe Evaporator Inlet Pipe Compressor Capillary Tube Discharge Pipe Evaporator Outlet Pipe Condenser Outlet Pipe Connecting Pipe (evaporator to compressor) Connecting Compressor Tube (condenser Suction Pipe to capillary tube) (insulated) Refrigerant System Piping MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 13...

  • Page 14: Electrical System

    Auxiliary Connector (CPK3) Capacitor for Compressor AUX2 Auxiliary Connector (Not Used) Relay Board Relay Board Fuse DIP Switch Terminal Block Compressor Capacitor Fan Motor Capacitor Electrical System and Control Box for Classic Plus 14 MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 14...
  • Page 15 ELECTRICAL SYSTEM Basic Operation of Classic Plus 14 Electrical Circuit There are two basic components used to control the operation of the Classic Plus 14 Electrical System: • Control Panel Assembly • Control Box The Control Panel Assembly contains the Control Panel, Control Board (with inputs for the freeze and room temperature thermistors), drain switch, and a microprocessor.
  • Page 16 Fuse Specifications: 2/10A 250V CAUTION: Failure to use the exact type of fuse could result in damage to the unit and/or to com- DIP Switch ponents. It will also void the warranty of the unit. MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 16...
  • Page 17 Specifications: Temperature Variance Trip Time (seconds) Contacts Open 284˚F / 140˚C ± 41˚F / ± 5˚C 2 – 12 Contacts Closed 165˚F / 74˚C ± 48˚F / ± 9˚C MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 17...
  • Page 18 Set Point. Condensate Pump Kit (optional) The Classic Plus 14 model comes standard with a drain tank, which collects the water that forms on the evaporator during normal cooling operation. If the unit is required to operate continuously without periodic emptying of this tank, a condensate pump may be needed.
  • Page 19 Automatic Restart After Power Interruption The program within the microprocessor of the Classic Plus 14 contains a feature that will automatically restart the unit after power is lost and then regained. The unit also has memory in order to return itself back to the operating mode (including temperature set point) it was in prior to the loss of power.

  • Page 20: Troubleshooting And Repair

    • Check wire connections • Defective fan motor capacitor Insufficient Cooling • Environmental conditions • Defective fan motor exceed design specifications • Defective Relay Board • Clogged air filter • Defective Control Board MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 20...
  • Page 21 If the difference is out of the range given in the graphs on page 8 proceed with the remedy suggested in the troubleshooting chart on page Inspection of Cooling Capacity MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 21...
  • Page 22 4. Air filter 13. Left side panel 5. Blower housing (condenser) 14. Drain tank 6. Condenser fan 15. Service panel 7. Rear panel 16. Room thermistor 8. Drain Switch 17. Freeze thermistor 9. Caster Disassembly MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 22...
  • Page 23 Removal of Duct Screws and Ducts C. Remove (4) screws from the Service Panel. Removal of Service Panel Screws D. Remove 3 wires, then remove the power cord. DISCONNECT DISCONNECT DISCONNECT Removal of Power Cord Screws MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 23...
  • Page 24 E. Remove remaining (13) screws and the back panel. Removal of Back Panel Screws Remove (14) screws from the Top Panel. 4 (backside) Removal of Top Panel Screws G. Top Panel (4). Removal of Top Panel MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 24...
  • Page 25 TROUBLESHOOTING AND REPAIR Removal of Electrical Parts Relay Board Relay Board Fuse DIP Switch Terminal Block Compressor Capacitor Fan Motor Capacitor Removal of Electrical Parts in the Control Box MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 25...
  • Page 26 Relay Board to Control Panel (optional) Condensate Pump Kit - CPK-3 Connections to Relay Board Jumper Drain Tank Switch NOT USED Freeze Thermistor Room Thermistor Main Wiring Harness (Control Panel to Relay Board) Connections to Control Board MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 26...
  • Page 27 Removal of Blower Assembly 1. Condenser fan 5. Partition plate 2. Blower housing (condenser) 6. Evaporator fan 3. Fan motor 7. Blower housing (evaporator) 4. Motor bracket 8. Air flow guide Disassembly of Blower MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 27...
  • Page 28 Removal of Blower Housing C. Remove two nuts and two screws as depicted. Then remove the motor bracket together with the fan motor. A - NUT B - SCREW Removal of Fan Motor Assembly MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 28...
  • Page 29 “A” nuts. Removal of Fan Motor E. Remove (7) screws from Left Side Panel. Removal of Left Side Panel Screws Remove (7) screws from Right Side Panel. Removal of Right Side Panel Screws MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 29...
  • Page 30 (2-pin) (4) Freeze Thermistor J102 (2-pin) NOTE: Mark each of the 2-pin connectors with a different color marker to ensure the correct orienta- tion when they are re-connected. Removal of Control Panel Assembly MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 30...
  • Page 31 Warning: Properly discharge the capacitor(s) before testing and after testing has been com- pleted. Failure to do so could cause damage to test equipment or the unit and/or result in personal injury (electrical shock) or death. MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 31...
  • Page 32 Refer to the Wiring Diagrams (pg. 40) and check for connection of each wire. Inspection of Thermistor(s) Using an Ohmeter, check the resistance value across the 2-Pin connector. At normal temperature (77˚F, 25˚C) either thermistor (Room or Freeze) should measure approx. 10,000 or 10k ohms. MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 32...
  • Page 33 Fats and oils may stick to the pipe from handling. All these factors will reduce effectiveness of brazing. It is necessary to eliminate excess brazing filler metal using sand paper and by cleaning thoroughly with a solvent such as Trichlene. MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 33...
  • Page 34 Since the brazing filler metal flows easily into the portion heated to a proper temperature, it is essential to keep the whole fitting at a proper brazing temperature. Vertical Up Joint MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 34...
  • Page 35 NOTE: Hold the compressor body, not the tube, when carrying the compressor. Removal of Refrigeration Cycle Components (Refer to 5-2-2.) PART REPLACED DISCONNECT AT: Compressor A & B Condenser A & C Capillary tube D & E Evaporator E & F Refrigeration Cycle Components MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 35...
  • Page 36 (2) Fit the process tube fitting to the pinch-off tube on both sides. Mounting of Process Tube Fitting MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 36...
  • Page 37 (this could also include gauge manifold). Perform leak check according to procedure indicated in D. Once leak has been found and Checking Vacuum repaired evacuate the system once more, and confirm system holds vacuum. MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 37...
  • Page 38 CAUTION: Be sure to evacuate the system twice or more using the repetitive vacuum method. Evacuation (repeat) Evacuate the system an additional time on rainy or humid days. MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 38...
  • Page 39 Charge to the specified amount, always observing the scale graduations while charging. (5) Close the high pressure valve of the gauge manifold and the valve of the refrigerant cylinder. MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 39...
  • Page 40 Secure the wires using clamps in the same position they were before re- moval. Perform the inspection of cooling capacity and check for abnormal noise or abnormal vibration. MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 40...
  • Page 41 TROUBLESHOOTING AND REPAIR Schematic MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 41...

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