Movincool CLIMATE PRO 18 Service Manual
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Movincool CLIMATE PRO 18 Service Manual

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SERVICE MANUAL

CLIMATE PRO 18
Unit Serial Number Range: 0914XXXXH18 to Present
(From September 2014 to Present)
DocID: 00G00095E

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Summary of Contents for Movincool CLIMATE PRO 18

  • Page 1: Service Manual

    SERVICE MANUAL CLIMATE PRO 18 Unit Serial Number Range: 0914XXXXH18 to Present (From September 2014 to Present) DocID: 00G00095E...

  • Page 2: Serial Number Location And Identification

    All rights reserved. This book may not be reproduced or copied, in whole or in part, without the written permission of the publisher. DENSO PRODUCTS AND SERVICES AMERICAS, INC. reserves the right to make changes without prior notice. MovinCool®, Office Pro®, and SpotCool® are registered trademarks of DENSO Corporation.

  • Page 3: Table Of Contents

    Table of Contents Table of Contents Operation Section 1. PRECAUTIONS FOR SAFETY Foreword............... 6 Definition of Terms .
  • Page 4 Table of Contents Power Cord with LCDI ............39 Drain Switch .
  • Page 5 Table of Contents Repair Section 8. TROUBLESHOOTING Troubleshooting ..............56 Self-Diagnostic Codes .

  • Page 6: Precautions For Safety

    Operation Section 1. PRECAUTIONS FOR SAFETY 1.1 Foreword • This manual has been published to service the MovinCool Climate Pro 18. Please use this service manual only when servicing the Climate Pro 18. 1.2 Definition of Terms Describes precautions that should be observed in order to prevent injury to WARNING the user during installation or unit operation.

  • Page 7: Construction

    Operation Section 2. CONSTRUCTION 2.1 Exterior Dimensions DIA. 11.6 (294) 1.4 (35) 1.4 (35) 3.0 (76) 3.0 (76) (116) 20.8 (527) 2.2 (55) 19.4 (492) 27.5 (698) Unit: Inch (mm) ILL00849-00...

  • Page 8: Exterior Components

    Operation Section 2.2 Exterior Components Control Panel Outdoor Heat Exchanger Air Outlet Duct Indoor Heat Exchanger Cool/Hot Air Outlet Grill Air Inlet Grill Caster Drain Tank Cover Outdoor Heat Exchanger Service Panel Power Cord Air Inlet Panel ILL00850-00...

  • Page 9: Internal Structure

    Operation Section 2.3 Internal Structure Indoor Fan Drain Tank Outdoor Fan Motor Electronic Expansion Valve Outdoor Fan Outdoor Indoor Heat Exchanger Heat Exchanger 4-Way Valve Indoor Fan Motor High Pressure Switch Drain Pan Service Box Accumulator Drain Switch Connector for Optional Compressor Condensate Pump ILL00851-00...

  • Page 10: Basic Construction

    Operation Section 2.4 Basic Construction • The Climate Pro 18 is compact in construction because the indoor and the outdoor heat exchangers are enclosed in one unit. The interior is divided into three sections. The upper front face is equipped with the indoor heat exchanger, and the lower front face contains the drain tank and condensate pump (optional accessory).

  • Page 11: Compressor And Fans

    1-speed motor to draw air through the outdoor air inlet. 2.7 Drain Tank • A 5.0 gal (19 L) drain tank is supplied with the Climate Pro 18. The condensate (water) is collected into the tank.

  • Page 12: Technical Specifications

    Operation Section 3. SPECIFICATIONS 3.1 Technical Specifications Technical Specifications - Table 1 ITEM SPECIFICATIONS Electronic Features Operation Digital Programmable Electrical Characteristics Voltage Requirement 1 Phase, 115 V, 60 Hz Operating Voltage Range Max. 127 V Min. 104 V Starting Current 65 A Recommended Fuse Size 20 A...
  • Page 13 Operation Section Technical Specifications - Table 2 ITEM SPECIFICATIONS Ventilation Equipment for Type of Indoor Coil (Heat Exchanger) Plate Fin Indoor Coil Type of Fan Centrifugal Fan Air Flow High 540 CFM (918 m Medium 440 CFM (748 m 350 CFM (595 m Max.
  • Page 14 Operation Section Technical Specifications - Table 3 ITEM SPECIFICATIONS Maximum Equivalent Duct Indoor Heat Exchanger Duct 25 ft (7.6 m) Length Outdoor Heat Exchanger Duct 100 ft (30.5 m) Sound Level* With Outdoor Heat High 61 dB (A) Exchanger Duct Medium 60 dB (A) 59 dB (A)

  • Page 15: Characteristics In Cool Mode

    Operation Section 3.2 Characteristics in Cool Mode • All characteristic values are within ±10% tolerance. (1) Cooling capacity curve (10) (13) (16) (18) (21) (24) (27) (29) (32) (35) Wet Bulb Temp. ºF (ºC) (10) (13) (16) (18) (21) (24) (27) (29) (32)
  • Page 16 Operation Section How to read the cooling capacity curve Example: Dry bulb: 80 ºF (27 ºC), 50 %RH, High fan speed Cooling capacity:14.6 kBtu/h (10) (13) (16) (18) (21) (24) (27) (29) (32) (35) Wet Bulb Temp. ºF (ºC) (10) (13) (16) (18)
  • Page 17 Operation Section (2) Power consumption curve (10) (13) (16) (18) (21) (24) (27) (29) (32) (35) Wet Bulb Temp. ºF (ºC) (18) (10) (13) (16) (21) (24) (27) (29) (32) (35) Dry Bulb Temp. ºF (ºC) ILL00855-00 How to read the power consumption curve Example: Dry bulb: 80 ºF (27 ºC), 50 %RH, High fan speed Power consumption : 1.54 kW (10)
  • Page 18 Operation Section (3) Current consumption curve (10) (13) (16) (18) (21) (24) (27) (29) (32) (35) Wet Bulb Temp. ºF (ºC) (10) (13) (16) (18) (21) (24) (27) (29) (32) (35) Dry Bulb Temp. ºF (ºC) ILL00857-00 How to read the current consumption curve Example: Dry bulb: 80 ºF (27 ºC), 50 %RH, High fan speed Current consumption : 14.2 A (10)
  • Page 19 Operation Section (4) Cool air temperature difference curve 30 (16.7) 25 (13.9) 20 (11.1) 15 (8.3) 10 (5.6) Relative Humidity (%) ILL00859-00...

  • Page 20: Characteristics In Heat Mode

    Operation Section 3.3 Characteristics in Heat Mode • All characteristic values are within ±10% tolerance. (1) Heating capacity curve (10) (13) (16) (18) (21) (24) (27) (29) Dry Bulb Temp. ºF (ºC) ILL00881-00...
  • Page 21 Operation Section How to read the heating capacity curve Example: Dry bulb: 60 ºF (15.6 ºC), 50 %RH, High fan speed Heating capacity:16 kBtu/h (10) (13) (16) (18) (21) (24) (27) (29) Dry Bulb Temp. ºF (ºC) ILL00882-00...
  • Page 22 Operation Section (2) Power consumption curve (10) (13) (16) (18) (21) (24) (27) (29) Dry Bulb Temp. ºF (ºC) ILL00883-00 How to read the power consumption curve Example: Dry bulb: 60 ºF (15.6 ºC), 50 %RH, High fan speed Power consumption: 1.54 kW (10) (13) (16)
  • Page 23 Operation Section (3) Current consumption curve (10) (13) (16) (18) (21) (24) (27) (29) Dry Bulb Temp. ºF (ºC) ILL00885-00 How to read the current consumption curve Example: Dry bulb: 60 ºF (15.6 ºC), 50 %RH, High fan speed Current consumption: 14 A (10) (13) (16)
  • Page 24 Operation Section (4) Hot air temperature difference curve 50 (27.8) 45 (25) 40 (22.2) 35 (19.4) 30 (16.7) 25 (13.9) 20 (11.1) 15(8.3) (10) (13) (16) (18) (21) (24) (27) (29) Dry Bulb Temp. ºF (ºC) ILL00887-00...

  • Page 25: Refrigeration System Construction

    Operation Section 4. REFRIGERATION SYSTEM 4.1 Refrigeration System Construction The component parts of the refrigeration system include the following: • Compressor, Accumulator, Indoor and Outdoor heat exchangers, High pressure switch, Electronic expansion valve with controller, 4-Way valve with controller These parts are all connected by copper tubing. All the connections have been brazed. Outdoor Heat Exchanger Electronic Expansion Valve Controller...
  • Page 26 Operation Section Flow of Refrigerant: Cool Mode Heat Mode CTS2 HPRS (Compressor Pipe OLC (Compressor Overload Relay) (High Pressure Switch) 4-Way Valve Thermistor) (Outdoor Fan Motor) Outdoor Heat Indoor Heat Exchanger Exchanger Air In Air In (Indoor Compressor Accumulator Fan Motor) (Indoor Air Inlet Thermistor) EXV (Electronic Expansion Valve)

  • Page 27: Compressor

    Operation Section 4.2 Compressor • The compressor used for the unit is hermetically sealed. The compressor and the compressor motor are in one casing. (1) Compressor construction •The construction of a rotary type compressor is divided into two mechanisms; the drive mechanism (compressor motor), and the compression mechanism (compressor).
  • Page 28 Operation Section (2) Basic compressor operation •The roller (compression mechanism) is set Discharge eccentrically with a certain distance given from Hole Spring Discharge the axis of the center of the cylinder. A spring Suction Valve Hole loaded blade is mounted on the cylinder. The Blade roller turns to compress the refrigerant in the space between the cylinder and eccentrically...
  • Page 29 Operation Section (3) Operation 1) Start of compression 1) The cylinder is filled with low pressure gas. Discharge Blade Valve 2) Since pressure in the discharge chamber is higher than in the cylinder, the discharge valve is kept closed. Roller I001676 2) Suction and compression 1) The pressure in the cylinder increases...

  • Page 30: Outdoor Heat Exchanger

    Operation Section (4) Compressor lubrication •The lubrication system is comprised of a hollow shaft, an oil scraper mounted at the end face, hollow shaft, a shaft journal (shaft bearing), Rotor and the lubrication groove for the shaft journal. The lubrication groove is wider than the oil hole.

  • Page 31: High Pressure Switch

    Operation Section 4.5 High Pressure Switch • The high pressure switch prevents the outdoor Pressure of Refrigerant heat exchanger and compressor from being Snap Disk damaged by excessive high pressure in the Movable Point high pressure line of the refrigeration cycle. Stationary Point The switch is normally closed.

  • Page 32: Electronic Expansion Valve

    Operation Section 4.7 Electronic Expansion Valve • In cool mode, the electronic expansion valve Valve Spring Spring causes rapid refrigerant expansion by injecting Magnet Valve Holder "high temperature, high pressure liquid Stopper Delivery Screw refrigerant" from the outdoor heat exchanger Valve through a small orifice.

  • Page 33: Electrical System

    Operation Section 5. ELECTRICAL SYSTEM 5.1 Wiring Diagram AC115V, 1PH, 60Hz, 20A T1 T R R1 JUMPER IOLF2 IOLF1 LINE CN25 CN27 CN26 CN17 CN01 CN19 RL02 RL01 RL09 RL03 RL04 RL06 RL08 RL07 AC115V CN02 CN31 CN34 AC20V CN03 CN30 CN37 CN11...

  • Page 34: Basic Operation Of Electrical Circuit

    Operation Section 5.2 Basic Operation of Electrical Circuit • There are two basic components used to control the operation of electrical system: - Control panel assembly - Service box • The control panel assembly contains the display panel and keypad. The service box contains all input and output devices such as temperature devices, sensors, relays, switches and microprocessor.

  • Page 35: Service Box

    Operation Section 5.3 Service Box (1) Capacitors • The capacitors are used to temporarily boost the power output available to the fan motors and the compressor at start-up. • The specifications of each capacitor are listed below: Capacitor Application Voltage Rating Capacitance Fan Motors 370 VAC...
  • Page 36 Operation Section (3) Relay board • The relay board is powered by 20 VAC from the secondary side of the step down transformer. This voltage is then converted from 20 VAC to 12 VDC and supplied to the relay driver circuits on the board.
  • Page 37 Operation Section (4) Transformer for relay board • A dry-type transformer rated 40 VA is equipped <Wiring Diagram> within the unit to provide step down voltage from 115 V to 20 V. • Terminals 1 and 5 are connected to 115 V Primary Secondary power source to supply power to secondary...

  • Page 38: Fan Motor

    Operation Section 5.4 Fan Motor (1) Indoor fan motor • The indoor fan motor is a 1 phase, induction type 3 speed motor. Specifications: - Rated Voltage: 115 V, 60 Hz - Rated Output: Hi - 115 W, Mid - 44.4 W, Lo - 15.4 W CF1-1 (White) Ground...

  • Page 39: Compressor

    MRA4720-12027 5.6 Power Cord with LCDI • The Climate Pro 18 is equipped with UL recognized LCDI power cord and NEMA plug configuration (5-20). The appropriate outlet must be used for this plug type. LCDI is used for monitoring leakage current. Once leakage current is detected, LCDI de-energizes the unit.

  • Page 40: Drain Switch

    Operation Section 5.7 Drain Switch • The Climate Pro 18 is equipped with a drain switch. When the drain tank accumulates approximately 4.0 gal (15 L) of condensate (water) in the drain tank, the drain switch sends a signal to the microprocessor. The microprocessor stops all operation of the unit, displays the "FL"...

  • Page 41: Condensate Pump Kit (Optional)

    • Press the START/STOP button on the control panel. The unit returns to the previous operation mode. 5.8 Condensate Pump Kit (Optional) • The Climate Pro 18 model comes standard with a drain tank, which collects the water that forms on the heat exchangers during normal operation. If the unit is required to operate continuously without periodically emptying this tank, a condensate pump may be needed.

  • Page 42: External Device Connection

    Operation Section 6. EXTERNAL DEVICE CONNECTION 6.1 Millivolt Thermostat Connection (Optional Accessory) WARNING Disconnect power before installation. Beware that some residual voltage may remain in the unit immediately after the power is disconnected. 1) Select the proper location where the millivolt thermostat can be conveniently accessed and install it at the selected location.
  • Page 43 Operation Section 5) Connect the millivolt thermostat wires to the terminal block according to the connection table shown below. Reinstall the service panel to the unit. Service Box Connection Table Millivolt Unit Thermostat Terminal Block 3 Wire No. Terminal No. Millivolts RC Millivolt Thermostat ILL00776-01...
  • Page 44 Operation Section 8) Use TEMP+ or -TEMP button to select YES and press ENTER button to confirm. LCD displays "EXTERNAL THERMOSTAT ACTIVATED" and "KEY LOCKED" with the room temperature. LED color changes from orange to green. ILL00814-00 9) To deactivate thermostat connection, press and hold MENU button for 5 seconds.

  • Page 45: 24Vac Thermostat Connection (Field Supplied)

    Operation Section 6.2 24VAC Thermostat Connection (Field Supplied) • An optional 24VAC transformer is required with a field supplied 24VAC thermostat. WARNING Disconnect power before installation. Beware that some residual voltage may remain in the unit immediately after the power is disconnected. Service Box 24VAC Thermostat Connection Table 24VAC...
  • Page 46 Operation Section 3) Remove the jumper plug from the terminal block. Reinstall the service panel to the unit. < NOTE > Keep this jumper plug in a safe place to reuse when the 24VAC thermostat is removed from the unit. 4) Plug in the power cord.

  • Page 47: Warning Device Connection (Field Supplied)

    Operation Section 6.3 Warning Device Connection (Field Supplied) • The controller of this unit is equipped with a warning signal output relay which can be used to monitor failure condition of the unit and is compatible with various external warning devices such as alarm speaker, light indicators, etc.
  • Page 48 Operation Section Service Box Warning Device ILL00774-01 3) Connect the warning signal wires to the terminals OS-1 and OS-2 as shown in the above figure. Reinstall the service panel to the unit. 4) Plug in the power cord.

  • Page 49: Alarm Device Connection (Field Supplied)

    Operation Section 6.4 Alarm Device Connection (Field Supplied) • The controller of this unit is equipped with two sets of input signal terminals on the terminal block which can connect the external alarm devices such as a fire alarm device. The input signal terminals should only be connected to a close or an open dry contact.

  • Page 50: Control Panel And Lcd Indicators

    Operation Section 7. CONTROL PANEL 7.1 Control Panel and LCD Indicators • Refer to the OPERATION MANUAL supplied with the unit for daily operation. (1) Control panel lLL00778-00 START/STOP button Start or stop the unit operation. Illuminate in Orange color for Self-Diagnostic and Standby mode, in Green color for normal operation.
  • Page 51 Operation Section ENTER button Select item in Menu mode. FAN+, -FAN buttons Change fan speeds Hi, MID, LO. TEMP+, -TEMP buttons Change set point temperature. Display operation mode, status, notification, confirmation, and self-diagnostic codes with two backlight colors. < NOTE > •...
  • Page 52 Operation Section (2) LCD indicators lLL00779-00 lLL00780-00 ILL00781-00 Day of the week Indicate day of the week. Time of the day Indicate time of the day. Indicate room temperature. Room Temp Temperature range: 0 °F ~ 99 °F (0 °C ~ 99 °C) Indicate keypad is locked.

  • Page 53: Operational Status Display

    Operation Section 7.2 Operational Status Display • The operational status of each functional part can be displayed on the LCD while the unit is running. (1) Display method • Press and hold MENU/ESC and ENTER buttons for 5 seconds. • Use FAN+ or -FAN button to select "STATUS", and press ENTER button to confirm.

  • Page 54: Record Display

    Operation Section 7.3 Record Display • The record of unit power on time, compressor operating time, defrosting time and self-diagnostic codes can be displayed on the LCD while the unit is running. • The unit power on time, compressor operating time, and defrosting time can be stored up to 65500 hours (automatically cleared to 0 hour and start counting).
  • Page 55 Operation Section Display Item Description Display Unit TOTAL TIME Total unit power on time COOL TIME Compressor operating time during cool mode HEAT TIME Compressor operating time during heat mode DEF. TIME Defrosting time during heat mode DIAGNOSTIC CODE 1 Self-diagnostic code 1: Latest code (Example) DIAGNOSTIC CODE 2...

  • Page 56: Troubleshooting

    Repair Section 8. TROUBLESHOOTING 8.1 Troubleshooting • Before troubleshooting the system, the following inspection should be performed. WARNING • Disconnect power supply from the unit before performing any service. Beware that some residual voltage may remain in the unit immediately after the power is disconnected. (1) Inspection of power source voltage •...

  • Page 57: Self-Diagnostic Codes

    Repair Section 8.2 Self-Diagnostic Codes • Self-diagnostic codes are displayed on the control panel LCD with backlight in orange color under the following conditions. Refer to the troubleshooting chart on page 62 to 66 for the remedies. Self-Diagnostic Codes - Table 1 Code Condition LCD Display and Description...
  • Page 58 Repair Section Self-Diagnostic Codes - Table 2 Code Condition LCD Display and Description Cooling or heating function failure When loss of cooling or heating occurs 3 times and the following condition continues for 15 minutes, the unit stops, LCD displays “CF”, and relay contact RL07 for terminal OS-1 and OS-2 closes.

  • Page 59: Troubleshooting Chart

    Repair Section 8.3 Troubleshooting Chart • To accurately troubleshoot the problem, it is important to carefully confirm the nature of the problem. Common problems are: - Insufficient cooling or heating. - Unit does not operate. - Overflow of drain water. - Abnormal noise or vibrations.
  • Page 60 Repair Section Troubleshooting of Insufficient Cooling or Heating - Table 1 Condition Check Area Possible Cause Remedy Insufficient Cooling or Heating Usage conditions Operates near minimum or Review the installation (high/low temperature) maximum of operation place. range. Dirt in the indoor or outdoor Insufficient heat exchange Clean the heat heat exchanger...
  • Page 61 Repair Section Troubleshooting of Insufficient Cooling or Heating - Table 2 Condition Check Area Possible Cause Remedy Insufficient Cooling or Heating No hot air LCD display F1 fuse (1.5 A) F1 fuse (1.5 A) is blown. Replace the F1 fuse during shows (1.5 A).
  • Page 62 Repair Section (2) Unit does not operate • In this case, there is a possibility of safety device activating due to the clogged air filter. So make sure to first clean the air filter and then start up again to confirm if the problem lies with the air filter.
  • Page 63 Repair Section Troubleshooting of Unit does not operate - Table 2 Condition Check Area/Diagnostic Possible Cause Remedy Code Drain tank is full of water. 1. Drain the water from the tank. 2. Place the tank back in the unit. 3. Press START/STOP button to start.
  • Page 64 Repair Section Troubleshooting of Unit does not operate - Table 3 Condition Check Area/Diagnostic Possible Cause Remedy Code Operating outside of the 1. Check operating operating temperature temperature and humidity range. condition. Do not use the unit outside the operating condition range.
  • Page 65 Repair Section Troubleshooting of Unit does not operate - Table 4 Condition Check Area/Diagnostic Possible Cause Remedy Code Optional condensate pump 1. Remove any blockage or stops pumping water due to kinks from the drain line or any kinks and/or blockage in improve hose installation.
  • Page 66 Repair Section Troubleshooting of Unit does not operate - Table 5 Condition Check Area/Diagnostic Possible Cause Remedy Code Loose CTS2 thermistor Reconnect the CTS2 connection thermistor and check connection. Defective CTS2 thermistor Replace the CTS2 displays (short or open) thermistor. self- diagnostic Loose CTS3 thermistor...
  • Page 67 Repair Section Troubleshooting of Unit does not operate - Table 6 Condition Check Area Possible Cause Remedy Temperature of fan motor Activation of the internal Replace the fan motor. (abnormally high) overload relay (IOLF) due to fan motor malfunction Temperature of Activation of the overload Inspect the overload relay.

  • Page 68: Basic Inspection

    Repair Section (4) Abnormal noise or vibration • To prevent abnormal noise or vibration, carefully determine the source of the problem and come up with proper countermeasures to solve the problem so that it does not occur again. Condition Check Area Possible Cause Remedy Indoor or outdoor fan...
  • Page 69 Repair Section (3) Inspection of cooling or heating performance • Measure the difference in temperature between the inlet of the indoor heat exchanger and the cool/heat air vent. If the difference is out of the range given in the graphs on page 19 and 24, proceed with the remedy suggested in the troubleshooting chart on page 59 to 61.

  • Page 70: Disassembly

    Repair Section 9. DISASSEMBLY WARNING • Disconnect power supply from the unit before performing any service. Beware that some residual voltage may remain in the unit immediately after the power is disconnected. 9.1 Unit Parts Construction Blower Assembly Control Panel (Indoor Heat Exchanger) Right Panel Upper Front Panel...

  • Page 71: Removal Of Panels

    Repair Section 9.2 Removal of Panels 1) Remove the drain tank. I002203 2) Remove four (4) screws from the upper front Screw (1) panel. Screw (1) Screws (2) ILL00892-00 3) Slide the upper front panel forward and remove. ILL00893-00 4) Louver can be removed from the upper front Pivots panel by unsnapping the lock tap and removing the louver from its pivots.
  • Page 72 Repair Section 5) Remove seven (7) screws from the service panel. Screws (7) ILL00894-00 6) Remove nine (9) screws from the rear panel. Screws (2) Screws (7) ILL00895-00 7) Remove eight (8) screws from the rear panel and Screws (2) two (2) screws from the outdoor fan casing.
  • Page 73 Repair Section 9) Remove ten (10) screws from right panel. Screws (3) Screws (4) Screws (3) ILL00898-00...

  • Page 74: Removal Of Electrical Parts

    Repair Section 9.3 Removal of Electrical Parts WARNING • Disconnect power supply from the unit before performing any service. Beware that some residual voltage may remain in the unit immediately after the power is disconnected. (1) Service box 1) Remove seven (7) screws from the service panel. (See page 72.) 2) Remove the electrical parts.
  • Page 75 Repair Section (2) Relay board 1) Remove nine (9) supports from the service panel. (See page 72.) 2) Disconnect twenty six (26) connectors from the relay board. CN31: To Terminal Block 2 CN34: To Terminal Block 3 for Millivolt, (#GND, Rx, Tx, +5V for Serial Communication Port) 24VAC thermostat RL01A-4 RL01A-3...
  • Page 76 Repair Section (3) Control panel 1) Remove four (4) screws from the control panel stay. Screws (2) Screws (2) ILL00912-00 2) Disconnect the CN2 connector from the control board. CN2 Connector ILL00900-00...
  • Page 77 Repair Section (4) Battery replacement of control board • If the clock is reset to initial setting "SUN 12:00AM" when the unit is powered on, it is time to replace the battery on the control board. 1) Remove the old battery from the holder. <Control Board>...

  • Page 78: Removal Of Blower Assembly

    Repair Section 9.4 Removal of Blower Assembly Stay for Control Panel Outdoor Fan Motor Indoor Wind Outdoor Fan Casing Direction Stay Outdoor Fan Ring Indoor Fan Casing Stay for Outdoor Fan Casing Stay for Indoor Fan Motor Center Panel Indoor Fan Motor Indoor Fan ILL00901-00...
  • Page 79 Repair Section (1) Removal of outdoor fan and motor Outdoor Fan Casing Nuts (2) Outdoor Fan Ring Nuts (2) Set Screw Screws (3) ILL00907-00 1) Remove three (3) screws and take out the ring. 2) Loosen the set screw using a hex key. Then remove the outdoor fan. 3) Remove four (4) nuts and remove the outdoor fan casing.

  • Page 80: Inspection Of Capacitor (For Fan Motor And Compressor)

    Repair Section (2) Removal of indoor fan and motor Indoor Fan Motor Stay Indoor Fan Motor Nuts (4) Nuts (4) Set Screw ILL00909-00 1) Remove four (4) nuts from the motor stay and take out the motor stay together with the indoor fan and motor.

  • Page 81: Inspection Of Drain Switch

    Repair Section (2) Capacitance tester method • Using a capacitance tester and the chart on page 35, test the capacitor for the value indicated. If the value tested is not within 10 % of indicated capacitance, replace the capacitor. WARNING •...

  • Page 82: Inspection Of Compressor

    Repair Section (2) Outdoor fan motor • Check resistance across the terminals of the fan motor. (All terminals must be disconnected from the unit.) - High resistance between CF2-1 and CF2-2 - Medium resistance between RL09-NO and CF2-2 CF2-1 (White) Ground CF2-2 (White/Brown) - Low resistance between RL09-NO and CF2-...

  • Page 83: Inspection Of Transformer

    Repair Section 9.9 Inspection of Transformer (1) Transformer for relay board • Check resistance across the terminals of the <Wiring Diagram> transfomer for the relay board. (All terminals must be disconnected from the unit.) Primary resistance value should be between 10 to 50 Primary Secondary times larger than the secondary resistance...

  • Page 84: Inspection Of Electronic Expansion Valve Control Coil

    Repair Section 9.10 Inspection of Electronic Expansion Valve Control Coil • Check resistance across the connector pins of the electronic expansion valve control coil. Coil resistance should be between 26 to 56 ohm at room temperature. - Between Blue and Red - Between Orange and Red - Between Yellow and Red 7 6 5 4 3 2 1...

  • Page 85: Inspection Of Wiring Connection

    Repair Section 9.13 Inspection of Wiring Connection • Refer to the wiring diagram on page 33 and check the connection of each wire. CAUTION Secure the wires using clamps to prevent contact with the edges of the structure, etc. Secure the wires in the same position as prior to removal.

  • Page 86: Refrigeration System Repair

    Repair Section 10. REFRIGERATION SYSTEM REPAIR 10.1 Repair of Refrigeration System • In case there is a leak, obstruction, or problem in the refrigeration system of this unit, replace or repair the part in question. After replacing any component, all connections must be brazed. (1) Proper brazing techniques •...
  • Page 87 Repair Section (4) Use of dry nitrogen gas • During brazing, the inside of the pipe undergoes an oxidative reaction due to the brazing flame. Introduce dry nitrogen gas (0.27 gal/min (1 L/min); adjust with the flow regulator) through the pinch-off tube of the refrigerant.

  • Page 88: Removal Of Refrigeration Cycle Components

    Repair Section 10.2 Removal of Refrigeration Cycle Components WARNING • Before replacing any refrigeration cycle component, recover the refrigerant using standard recovery procedures and equipment. • When recovering the refrigerant, use the pinch-off tubes at the low pressure side (tube 1) and high pressure side (tube 2) as shown in the figure below.
  • Page 89 Repair Section Part to Replace Disconnect At Electronic Expansion (Pull up from the clip.) Valve Controller 4-Way Valve I, J, K, L 4-Way Valve Controller (Remove one screw.) Pipe Assembly D, Q, R, S Pipe Assembly with High Pressure Switch and A, B, D, T 4-Way Valve Pipe Assembly with...

  • Page 90: Charging The System With R-410A Refrigerant

    Repair Section 10.3 Charging the System with R-410A Refrigerant • Always ensure that the refrigeration system has been properly evacuated before charging with the specified amount of R-410A. • Equipments is only for R-410A. • Liquid charge (no gas charge). •...
  • Page 91 Repair Section (1) Connection of gauge manifold 1) Properly remove the crushed end of the pinch-off tube at the high pressure side and the low Charging Hose Side pressure side of the refrigerant cycle with a pipe cutter. Refrigerant Cycle Side 2) Fit the process tube fitting to the pinch-off tube on both sides.
  • Page 92 Repair Section (3) Checking vacuum 1) Leave the high pressure valve and the low Valve Setting pressure valve of the gauge manifold closed for 5 Closed Closed minutes or more, and confirm that the gauge Pressure Gauge pointer does not return to zero. 2) If the gauge pointer returns gradually to zero Return there is a leak somewhere in the system (this...
  • Page 93 Repair Section (4) Checking gas leak 1) Remove the charging hose (green) from the Valve Setting vacuum pump, and connect the hose to the Closed Closed refrigerant cylinder (R-410A). Air Purging Open The Valve 2) Loosen the nut on the gauge manifold side of the of Refrigerant charging hose (green).
  • Page 94 Repair Section (5) Evacuation (repeat) 1) Close the valve of the refrigerant cylinder. Then Valve Setting remove the charging hose (green) from the Gauge Closed Open Closed Closed 30 inHg (100 kPa) or larger refrigerant cylinder, and connect it to the Low Pressure refrigerant recovery machine.

  • Page 95: Refrigerant Charging Work

    Repair Section 10.4 Refrigerant Charging Work (1) Refrigerant charging 1) Remove the charging hose (green) from the Valve Setting vacuum pump, and connect it to the refrigerant Closed Closed cylinder Air Purging (R-410A). Open The Valve of Refrigerant 2) Loosen the nut on the gauge manifold side of the Cylinder charging hose (green).
  • Page 96 Repair Section (2) Removal of gauge manifold 1) Crimp the pinch-off tube with a pinch-off tool. Pinch-Off Tool 2) Remove the gauge manifold and the process To Gauge Manifold Side tube fitting. Crush the end of the pinch-off tube. Pinch-Off Tube 3) Braze the end of the pinch-off tube.

  • Page 97: Reassembly

    Repair Section 11. REASSEMBLY 11.1 Removal of Unit • Reassemble the unit in the reverse order of removal. Described below are the parts that require special care in reassembling the unit. Perform all wiring or rewiring as referenced in the wiring diagram.

  • Page 98: Perform The Inspection

    Repair Section 11.5 Perform the Inspection • Perform the inspection of cooling and heating performance and check for abnormal noise or vibration. 11.6 Caster Maintenance • Lubricate bearings in caster as needed with standard bearing grease using the zerk fitting. <...
  • Page 99 First Issue: December 2014 P/N: SV0082-00...

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Climate pro 12

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