FILE NO.
CONTENTS 1. SAFETY PRECAUTIONS ............................................................................ 3 2. SPECIFICATIONS ........................................................................................ 5 3. REFRIGERANT R410A ............................................................................. 12 4. CONSTRUCTION VIEWS ......................................................................... 20 5. WIRING DIAGRAM ..........................................................................
1. SAFETY PRECAUTIONS For general public use Power supply cord of outdoor unit shall be more than 1.5 mm2 (H07RN-F or 245IEC66) polychloroprene sheathed flexible cord. • • • • Read this “SAFETY PRECAUTIONS” carefully before servicing. The precautions described below include the important items regarding safety. Observe them without fail. After the servicing work, perform a trial operation to check for any problem. Turn off the main power supply switch (or breaker) before the unit maintenance.
WARNING • Never modify this unit by removing any of the safety guards or by-pass any of the safety interlock switches. • Do not install in a place which cannot bear the weight of the unit. Personal injury and property damage can result if the unit falls. • After the installation work, confirm that refrigerant gas does not leak. If refrigerant gas leaks into the room and flows near a fire source, such as a cooking range, noxious gas may generate.
2. SPECIFICATIONS The indoor and outdoor units that can be used in combination are shown in the tables below.
2-1-1 Specifications Heat pump models Unit model Indoor Outdoor Cooling Capacity (kW) Cooling Capacity range (kW) Heating Capacity (kW) Heating Capacity range (kW) Power supply Electric Indoor charactaristics (220V/230V/ 240V) Outdoor (220V/230V/ 240V) Unit model Runnning Current (A) Power Consumption (W) Power factor (%) Unit model Operation mode Running current (A) Power Consumption (W) Power factor (%) Starting current (A) COP(Cooling/Heating) Operating noise Indoor dB(A) (Cooling/Heating) Indoor uni
2-1-2 Specifications Cooling-only models Unit model Indoor Outdoor Cooling Capacity (kW) Cooling Capacity range (kW) Heating Capacity (kW) Heating Capacity range (kW) Power supply Electric Indoor charactaristics (220V/230V/ 240V) Outdoor (220V/230V/ 240V) Unit model Runnning Current (A) Power Consumption (W) Power factor (%) Unit model Operation mode Running current (A) Power Consumption (W) Power factor (%) Starting current (A) COP(Cooling/Heating) Operating noise Indoor dB(A) (Cooling/Heating) Indoor
2-2 Performance specifications combinations of indoor unit RAS-M14EAV-E, RAS-M14EACV-E Operation Mode Volts V Operation Status Operating indoor unit Unit capacity (kW) Capacity (kW) Running current Power Consumption A B A B kW A W 10 – 2.5 – 2.5 (1.1 to 3.2) 3.05 (1.10 to 4.30) 570 (170 to 880) 1 unit 220 13 – 3.5 – 3.5 (1.1 to 3.8) 5.26 (1.10 to 6.06) 1100 (170 to 1280) 10 10 1.95 1.95 3.9 (1.4 to 4.4) 5.12 (1.49 to 6.11) 1070 (230 to 1290) 13 10 2.33 1.
RAS-M18EAV-E , RAS-M18EACV-E Operation mode Volts V Operation Status 1 unit 220 Operating indoor unit Capacity (kW) Running current Power Consumption A B Unit capacity (kW) A B kW A W 10 – 2.7 – 2.7 (1.1 to 3.2) 3.03 (1.43 to 3.83) 600 (220 to 800) 13 – 3.7 – 3.7 (1.1 to 4.2) 5.10 (1.43 to 6.49) 1100 (220 to 1400) 16 – 4.5 – 4.5 (1.1 to 4.9) 6.96 (1.43 to 7.88) 1500 (220 to 1700) 10 10 2.55 2.55 5.1 (1.4 to 6.1) 7.19 (1.69 to 9.
2-2-1. Operation Characteristic Curve RAS-M14EAV-E 8 8 7 7 6 6 5 5 Current (A) Current (A) RAS-M14EAV-E, RAS-M14EACV-E 4 3 4 3 2 2 • Conditions Indoor : DB 27˚C/WB 19˚C Outdoor : DB 35˚C Air flow : High Pipe length : 7.5m x 2 2 units operating 230V 1 0 • Conditions Indoor : DB 20˚C Outdoor : DB 7˚C/WB 6˚C Air flow : High Pipe length : 7.
2-2-3. Operation Characteristic Curve RAS-M18EAV-E, RAS-M18EACV-E 12 11 11 10 10 • Conditions Indoor : DB 27˚C/WB 19˚C Outdoor : DB 35˚C Air flow : High Pipe length : 7.5m x 2 2 units operating 230V 8 7 9 8 Current (A) 9 Current (A) RAS-M18EAV-E 12 6 5 7 6 5 4 4 3 3 2 2 1 1 0 0 10 20 30 40 50 60 70 80 0 90 • Conditions Indoor : DB 20˚C Outdoor : DB 7˚C/WB 6˚C Air flow : High Pipe length : 7.
3. REFRIGERANT R410A This air conditioner adopts the new refrigerant HFC (R410A) which does not damage the ozone layer. The working pressure of the new refrigerant R410A is 1.6 times higher than conventional refrigerant (R22).
Table 3-2-1 Thicknesses of annealed copper pipes Thickness (mm) Nominal diameter Outer diameter (mm) R410A R22 1/4 6.35 0.80 0.80 3/8 9.52 0.80 0.80 1/2 12.70 0.80 0.80 5/8 15.88 1.00 1.00 (2) Joints For copper pipes, flare joints or socket joints are used. Prior to use, be sure to remove all contaminants. a) Flare Joints Flare joints used to connect the copper pipes cannot be used for pipings whose outer diameter exceeds 20 mm. In such a case, socket joints can be used.
d) Flare Processing Make certain that a clamp bar and copper pipe have been cleaned. By means of the clamp bar, perform the flare processing correctly. Use either a flare tool for R410A or conventional flare tool. Flare processing dimensions differ according to the type of flare tool. When using a conventional flare tool, be sure to secure “dimension A” by using a gauge for size adjustment. ØD A Fig.
Table 3-2-6 Flare and flare nut dimensions for R22 Nominal diameter Outer diameter (mm) Thickness (mm) A B C D Flare nut width (mm) 1/4 6.35 0.8 9.0 9.2 6.5 13 17 3/8 9.52 0.8 13.0 13.5 9.7 20 22 1/2 12.70 0.8 16.2 16.0 12.9 20 24 5/8 15.88 1.0 19.7 19.0 16.0 23 27 3/4 19.05 1.0 23.3 24.0 19.2 34 36 45˚ Dimension (mm) 6˚ to 4 B A D C 43˚ to 4 5˚ Fig.
3-3. Tools 3-3-1. Required Tools The service port diameter of packed valve of the outdoor unit in the air conditioner using R410A is changed to prevent mixing of other refrigerant. To reinforce the pressure-resisting strength, flare processing dimensions and opposite side dimension of flare nut (For Ø12.7 copper pipe) of the refrigerant piping are lengthened. The used refrigerating oil is changed, and mixing of oil may cause a trouble such as generation of sludge, clogging of capillary, etc.
3-4. Recharging of Refrigerant When it is necessary to recharge refrigerant, charge the specified amount of new refrigerant according to the following steps. Recover the refrigerant, and check no refrigerant remains in the equipment. When the compound gauge’s pointer has indicated –0.1 Mpa (–76 cmHg), place the handle Low in the fully closed position, and turn off the vacuum pump’s power switch. Connect the charge hose to packed valve service port at the outdoor unit’s gas side.
(1) Be sure to make setting so that liquid can be charged. (2) When using a cylinder equipped with a siphon, liquid can be charged without turning it upside down. It is necessary for charging refrigerant under condition of liquid because R410A is mixed type of refrigerant. Accordingly, when charging refrigerant from the refrigerant cylinder to the equipment, charge it turning the cylinder upside down if cylinder is not equipped with siphon.
(2) Characteristics required for flux • Activated temperature of flux coincides with the brazing temperature. • Due to a wide effective temperature range, flux is hard to carbonize. • It is easy to remove slag after brazing. • The corrosive action to the treated metal and brazing filler is minimum. • It excels in coating performance and is harmless to the human body.
4. CONSTRUCTION VIEWS 4-1.
4-2.
Color Identification RED : RED WHI : WHITE BLK : BLACK BLU : BLUE BRW : BROWN ORN : ORANGE PUR : PURPUL YEL : YELLOW GRY : GRAY PNK : PINK GRN& GREEN& YEL : YELLOW – 22 – Wireless Unit Assembly 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 MCC-899 10 10 CN100 (WHI) BLU BLU BLU BLU BLU BLU BLU BLU WHI THERMO SENSOR (TA) 9 8 7 6 5 4 3 2 1 9 8 7 6 5 4 3 2 MAIN P.C.
5-2.
6. SPECIFICATIONS OF ELECTRICAL PARTS 6-1. Indoor Unit RAS-B16EKVP-E, RAS-B13EKVP-E, RAS-B10EKVP-E RAS-M16EKCVP-E, RAS-M13EKCVP-E, RAS-M10EKCVP-E No. Parts name Type MF-280-30-5 Specifications 1 Fan motor (for indoor) 2 Room temp. sensor (TA-sensor) (–) 10kΩ at 25°C 3 Heat exchanger temp.
6-2. Outdoor Unit RAS-M14EAV-E, RAS-M14EACV-E, RAS-M18EAV-E, RAS-M18EACV-E No. Parts name Rating Model name SC coil (Noise filter) (L03) ADR2520-R15TB or SC-20-01J-A AC 250V, 20A, 0.15mH SC coil (Noise filter) (L01) ADR25H-200R8TB AC 250V, 20A, 0.88mH 2 DC-DC transformer SWT-72 or SWT-83 Primary side DC 280VSecondary side: 7.5V x 1, 13V x 126.
7. REFRIGERANT CYCLE DIAGRAM 7-1. Refrigerant Cycle Diagram RAS-B13EKVP-E, RAS-B10EKVP-E RAS-M14EAV-E INDOOR UNIT Indoor heat exchanger Indoor fan P Pressure measurement Gauge attaching port Vacuum pump connecting port Deoxidized copper pipe Both A and B rooms Outer dia. : 9.52mm Thickness : 0.8mm Temp. measurement To B room Ta Deoxidized copper pipe Both A and B rooms Outer dia. : 6.35mm Thickness : 0.8mm Sectional shape of heat insulator Per 1 unit Max.
RAS-M13EKCVP-E, RAS-M10EKCVP-E RAS- M14EACV-E INDOOR UNIT Indoor heat exchanger Indoor fan P Pressure measurement Gauge attaching port Vacuum pump connecting port Deoxidized copper pipe Both A and B rooms Outer dia. : 9.52mm Thickness : 0.8mm Temp. measurement To B room Ta Deoxidized copper pipe Both A and B rooms Outer dia. : 6.35mm Thickness : 0.8mm Sectional shape of heat insulator Allowable pipe length To B room T1 Allowable height difference : 10m *1 Tca Per 1 unit Max.
RAS-B16EKVP-E, RAS-B13EKVP-E, RAS-B10KVP-E RAS-M18EAV-E INDOOR UNIT Indoor heat exchanger Indoor fan P Pressure measurement Gauge attaching port Vacuum pump connecting port Deoxidized copper pipe Both A and B rooms Outer dia. : 9.52mm (10,13) : 12.7mm (16) Thickness : 0.8mm Temp. measurement To B room Ta Deoxidized copper pipe Both A and B rooms Outer dia. : 6.35mm Thickness : 0.8mm Sectional shape of heat insulator Per 1 unit Max.
RAS-M16EKCVP-E, RAS-M13EKCVP-E, RAS-M10EKCVP-E RAS-M18EACV-E INDOOR UNIT Indoor heat exchanger Indoor fan P Pressure measurement Gauge attaching port Vacuum pump connecting port Deoxidized copper pipe Both A and B rooms Outer dia. : 9.52mm (10,13) : 12.7mm (16) Thickness : 0.8mm Temp. measurement To B room Ta Deoxidized copper pipe Both A and B rooms Outer dia. : 6.35mm Thickness : 0.
7-2. Operation Data RAS-M14EAV-E, RAS-M14EACV-E Temperature condition indoor outdoor No.of operating units 1 unit 27 / 19 35 / – 2 units Operating combination (Unit) Heat exchanger pipe temp. T2 (°C) Indoor fan Outdoor fan compressor revolution (rps) 43 to 45 High 700rpm 39 8 to 11 47 to 49 High 750rpm 66 Standard pressure P (Mpa) T1 (°C) 10 0.7 to 0.9 11 to 13 13 0.9 to 1.1 A B 10 10 0.9 to 1.1 14 to 16 47 to 49 High 750rpm 64 13 10 0.9 to 1.
8. CONTROL BLOCK DIAGRAM 8-1. Indoor Unit RAS-B10EKVP-E, RAS-B13EKVP-E, RAS-B16EKVP-E Indoor Unit Control Unit M.C.
RAS-M10EKCVP-E, RAS-M13EKCVP-E, RAS-M16EKCVP-E Indoor Unit Control Unit M.C.
220–240 V ~50Hz 220 V ~60Hz MCC-5015 (SUB P.C.B) Unit A send/receive circuit MCC-5009 (SUB P.C.B) Unit B send/receive circuit Current detect M.C.U • PWM synthesis function • Input current release control • IGBT over-current detect control Gas side pipe temp. sensor (unit A) (TGa) • High power factor correction control • Signal communication to MCU M.C.U – 33 – Outdoor Heatexchanger temp. sensor (TE) • Inverter output frequency control Discharge temp. sensor (TD) • P.M.V. control Suction temp.
9.
9-2. Operation Description No. 9-2 Contents 1 Basic operation ................................................................................... 36 1) 2) 3) 4) 5) 2 Page Operation control ................................................................................................ 36 Operating mode selection ................................................................................... 37 Cooling/Heating operation ................................................................................
Item 1. Basic operation Operation flow and applicable data, etc. Description 1) Operation control Receiving the user’s operation condition setup, the operation statuses of indoor/outdoor units are controlled.
Operation flow and applicable data, etc. Item 1. Basic operation Description 2) Operating mode selection when performing 2-room operation No.
Operation flow and applicable data, etc. Item 1. Basic operation 4) AUTO operation Selection of operation mode As shown in the following figure, the operation starts by selecting automatically the status of room temperature (Ta) when starting AUTO operation. Ta Cooling operation Ts + 1 Monitoring (Fan) Description 1) Detects the room temperature (Ta) when the operation started. 2) Selects an operation mode from Ta in the left figure. 3) Fan operation continues until an operation mode is selected.
Item 2. Indoor fan motor control Operation flow and applicable data, etc. Description (This operation controls the fan speed at indoor unit side.) The indoor fan (cross flow fan) is operated by the phasecontrol induction motor. The fan rotates in 5 stages in MANUAL mode, and in 5 stages in AUTO mode, respectively. (Table 1) COOL ON Fan speed setup MANUAL Indication Fan speed L W6 L+ (L + M) / 2 M W9 M+ (M + H) / 2 H WC (Fig.
Item Description Operation flow and applicable data, etc. 2. Indoor fan motor control (Heat pump model) 1) When setting the fan speed to L, L+, M, M+ or H on the remote controller, the operation is performed with the constant speed shown in Fig. 3 and Table 1. 2) When setting the fan speed to AUTO on the remote controller, revolution of the fan motor is controlled to the fan speed level shown in Fig. 5 according to the set temperature and room temperature.
Item 3. Outdoor fan motor control Operation flow and applicable data, etc. Description The blowing air volume at the outdoor unit side is con1) The operation command sent trolled. from the remote controller is processed by the indoor unit Receiving the operation command from the controller of controller and transferred to the indoor unit, the controller of outdoor unit controls fan speed. controller of the outdoor unit.
Item Operation flow and applicable data, etc. Heating operation TE Zone A: 24°C Zone B: Description 1) Operation is performed at the MAX revolutions shown in the Zone A: The fan revolutions are left tables for 3 minutes after decreased by 100 rpm compressor operation starts and every 20 seconds (to the for 1 minute after defrosting MIN revolutions). operation ends.
Item Operation flow and applicable data, etc. 4. Capacity control Outdoor unit Indoor Unit A Inverter Compressor Indoor Unit A Outdoor unit Operation mode No.of operating unit 1 unit M18EAV-E M18EACV-E Cooling 2 units 1 unit M18EAV-E Heating 2 units 1 unit M14EAV-E M14EACV-E Cooling M14EAV-E Heating 2 units 1 unit 2 units 5.
Item Indoor heat exchanger temperature (Prevent-freezing control for indoor heat exchanger) In cooling/dry operation, the sensor of indoor heat exchanger detects evaporation temperature and controls the compressor speed so that temperature of the heat exchanger does not exceed the specified value. Usual cooling capacity control R Description 1) When temperature of the indoor heat exchanger drops below 5°C, the compressor speed is reduced.
Item 7. Winding/Coil heating control Operation flow and applicable data, etc. When the outdoor temperature is low, the windings/coils are heated to ensure compressor reliability. Outdoor temperature To Winding/Coil heating amount OFF –1˚C –3˚C 20W 8. Defrost control (This function removes frost adhered to the outdoor heat (Only in heating exchanger.
Item 9. Louver control 1) Louver position Operation flow and applicable data, etc. Description This function controls the air direction of the indoor unit. • The position is automatically controlled according to the operation mode (COOL/HEAT). • The set louver position is stored in memory by the microcomputer, and the louver returns to the stored position when the next operation is performed. (Cooling/heating memory position) The angle of the louver is indicated as the horizontal angle is 0°.
Item Description When pushing [ECO] button on the remote controller, a quiet and mild operation is performed by reducing the fan speed and the compressor speed. This function operates the air conditioner with the difference between the set and the room temperature as shown in the following figure. The time correction is performed for 8 minutes each. (However, the first correction is performed 150 seconds after start of the operation.) TA [˚C] +4.0 +3.5 +3.0 +2.5 +2.0 +1.5 +1.0 +0.
Item Operation flow and applicable data, etc. 11. Temporary operation Pushing [RESET] button starts the temporary operation of [AUTO] operation. When keeping [RESET] button pushed for 10 seconds or more, the temporary [COOL] operation is performed. FILTER indicator ON YES Push RESET button. NO Did you push [RESET] button for 3 seconds or more? NO Temporary [AUTO] operation YES Did you push [RESET] button for 10 seconds or more? YES NO Switch to [AUTO RESTART] control.
Item 12. Air purifying control Operation flow and applicable data, etc. This function generates nagative ion while cleaning the air in the room. If air purifier-ON signal is received while the air conditioner stops, the air purifier starts operation, and if it is received while the air conditioner operates, the air conditioner and the air purifier start operation. The air ion generator operates linked with the air purifying operation.
Item 12. Air purifying control [Detection of abnormality] Operation flow and applicable data, etc. 1. Purpose The air purifying control function is to alert the user to trouble in the ionizing or air purifying operation. Purifying operation YES Total operation time 1000H NO FILTER indicator ON Error input NO YES Purifier power OFF Purifier power ON 1 minute or less YES FILTER indicator ON Purifier power OFF NO FILTER incicator-OFF continues. Purifier power OFF Error detection NO Approx.
Item 14. Pulse Motor valve (PMV) control Operation flow and applicable data, etc. This function controls throttle amount of the refrigerant in the refrigerating cycle. According to operating status of the air conditioner, this function also controls the open degree of valve with an expansion valve with pulse motor. Starting up Initialize Move to initial position Compressor ON SH control Td release control PMV open degree control Stop by remote controller Room temp.
Item Operation flow and applicable data, etc. 15. Clean operation Unit now performing cooling or dry operation Push "stop" button Only S.CLEAN indicator lights, and clean operation starts Time set now elapses Operation stops • During clean operations: The louver opens slightly. The indoor fan operates continuously at a speed of 260 rpm.
Item 16. Clean operation release Operation flow and applicable data, etc. Description Setting the clean operation release Add J04 of the indoor P.C. board assembly. * This cancels the auto restart function. Hold down the auto operation switch on the indoor unit for at least 3 seconds but not more than 10 seconds. * J04 will be near the MUC so take steps to ensure that it will not be exposed to excessive levels of heat. Also take care to avoid solder bridging with the surrounding components.
Item 17. Select switch on remote controller Description Operation flow and applicable data, etc. Push the operation button on the remote controller. Select “B” as the setting for YES one of the two indoor units and for the remote controller. (See below for details.) Both indoor units start operation. NO Unnecessary set [Remote controller select] 1. Purpose This operation is to operate only one indoor unit using one remote controller. 2.
9-3. Auto Restart Function 9-3-1. How to Set the Auto Restart Function This indoor unit is equipped with an automatic restarting function which allows the unit to restart operating with the set operating conditions in the event of a power supply being accidentally shut down. The operation will resume without warning three minutes after power is restored. This function is not set to work when shipped from the factory. Therefore it is necessary to set it to work.
9-3-2. How to Cancel the Auto Restart Function To cancel auto restart function, proceed as follows : Repeat the setting procedure : the unit receives the signal and beeps three times. The unit will be required to be turned on with the remote controller after the main power supply is turned off. • When the system is on stand-by (not operating) Operation Push [RESET] button for more than three seconds. (Less than 10 seconds) Motions The unit is on standby. ↓ The unit starts to operate.
9-5. Remote Controller and Its Fuctions 9-5-1. Parts Name of Remote Controller a Infrared signal transmitter Transmits signals to the indoor unit. b button Press the button to start operation. (A receiving beep is heard.) Press the button again to stop operation. (A receiving beep is heard.) If no receiving sound is heard from the indoor unit, press the button twice. c Mode select button (MODE) Press this button to select a mode.
9-5-2. Name and Functions of Indications on Remote Controller [Display] All indicators, except for the clock time indicator, are displayed by pressing the button. a Transmission mark This transmission mark ( ) indicates when the remote control transmits signals to the indoor unit. b Mode indicator adbhj c Indicates the current operation mode.
9-6. Hi-POWER Mode ([Hi-POWER] button on the remote controller is pushed.) When [Hi-POWER] button is pushed while the indoor unit is in Auto, Cooling or Heating operation, Hi-POWER mark is indicated on the display of the remote controller and the unit operates as follows. (1) Automatic operation • The indoor unit operates in according to the current operation. (2) Cooling operation • The preset temperature drops 1°C. (The value of the preset temperature on the remote controller does not change.
10. INSTALLATION PROCEDURE 10-1.Installation Diagram of Indoor and Outdoor Units For the rear left and left piping 47 mm or more Hook Hook a Installation plate Wall 140 mm or more 74 mm or more Hook g Mounting screw Insert the cushion between the indoor unit and wall, and tilt the indoor unit for better installation work. Do not allow the drain hose to become slack.
10-2.Optional Parts, Accesories and Tools Optional Installation Parts Part Code Parts name Refrigerant piping Q’ty Liquid side Gas side (Outer diameter) (Outer diameter) 10, 13 6.35 mm 9.52 mm 16 6.35 mm 12.7 mm Shield pipe (for extension drain hose) (polyethylene foam, 6 mm thick) Indoor unit name Y Z Attachment bolt arrangement of outdoor unit • Secure the outdoor unit with the attachment bolts and nuts if the unit is likely to be exposed to a strong wind.
Installation/Service Tools Changes in the product and components In air conditioners using R410A, in order to prevent any other refrigerant from being accidentally charged, the service port diameter size of the outdoor unit control valve (3 way valve) has been changed. (1/2 UNF 20 threads per inch) • In order to increase the pressure resisting strength of the refrigerant piping, flare processing diameter and opposing flare nuts sizes have been changed.
10-3. Installation of Indoor Unit Installation Location • • • • • • A place which provides enough space around the indoor unit as shown in the diagram. A place where there are no obstacles near the air inlet and outlet. A place which allows easy installation of the piping to the outdoor unit. A place which allows the front panel to be opened. The indoor unit shall be installed so that the top of the indoor unit is positioned at least 2 m high. Also, avoid putting anything on the top of the indoor unit.
Mounting the installation plate Anchor bolt holes 25 mm 91 mm a Installation plate Pipe hole Pipe hole Indoor unit g Mounting screw When the installation plate is directly mounted on the wall 1. 2. 3. Securely fit the installation plate onto the wall by screws with the upper and lower catches, that hold the indoor unit, facing out. To mount the installation plate on a concrete wall use anchor bolts. Drill the anchor bolt holes as illustrated in the above figure.
CAUTION • This appliance can be connected to a main circuit breaker in either of the following two ways. (1) Connection to fixed wiring: A switch or circuit breaker which disconnects all poles and has a contact separation of at least 3 mm must be incorporate in the fixed wiring. An approved circuit breaker or switch must used. (2) Connection with power supply plug: Attach power supply plug with power cord and plug it into wall outlet. An approved power supply cord and plug must be used.
Piping and Drain Hose Installation Piping and drain hose forming • Since condensation results in machine trouble, make sure to insulate both the connecting pipes separately. (Use polyethylene foam as insulating material.) Rear right Left Bottom right Right Die-cutting front panel slit Bottom left Piping preparation Changing drain hose Rear left 1.
In case of right or left piping • After making slits on the front panel with a knife or similar tool, cut them out with a pair of nippers or an equivalent tool. Slit In case of bottom right or bottom left piping • After making slits on the front panel with a knife or similar tool, cut them out with a pair of nippers or an equivalent tool. Slit Left-hand connection with piping Bend the connecting pipes so that they are positioned within 43 mm above the wall surface.
Indoor Unit Installation 1. 2. 3. Pass the pipe through the hole in the wall, and hook the indoor unit on the installation plate at the upper hooks. Swing the indoor unit to right and left to confirm that it is firmly hooked on the installation plate. While pressing the indoor unit onto the wall, hook it at the lower part on the installation plate. Pull the indoor unit toward you to confirm that it is firmly hooked on the installation plate.
10-4.
10-5. Installation of Outdoor Unit 10-5-1. Installation Location • A place which provides enough space around the outdoor unit as shown in the diagram. A • place which can bear the weight of the outdoor unit and does not allow an increase in noise level and vibration. • A place where the operation noise and discharged air do not disturb neighbors. • A place which is not exposed to a strong wind. • A place free of combustible gases. • A place which does not block a passageway.
CAUTION 1. 2. 3. 4. Install the outdoor unit without anything blocking the discharging air. When the outdoor unit is installed in a place always exposed to strong winds like on the coast or on a high story of a building, secure the normal fan operation using a duct or a wind shield. Especially in windy areas, install the unit to prevent the admission of wind. Installation in the following places may result in trouble. Do not install the unit in such places. • A place full of machine oil.
10-5-2. Refrigerant Piping Connection Flaring 1. Cut the pipe with a pipe cutter. 2. Insert a flare nut into the pipe, and flare the pipe. • Projection margin in flaring: A (Unit: mm) Rigid (Clutch type) Outer diameter of copper pipe 6.35 9.52 12.7 Die 3. Warp Roughness Obliquity R410A tool used 0 to 0.5 0 to 0.5 0 to 0.5 Conventional tool used 1.0 to 1.5 1.0 to 1.5 1.0 to 1.5 Imperial (Wing nut type) Outer diameter of copper pipe 6.35 9.52 12.7 Pipe R410A 1.5 to 2.0 1.5 to 2.0 2.0 to 2.
• Tightening torque for connection of flare pipe The pressure of R410A is higher than R22. (Approx. 1.6 times.) Therefore securely tighten the flare pipes which connect the outdoor unit and the indoor unit with the specified tightening torque using a torque wrench. If any flare pipe is incorrectly connected, it may cause not only a gas leakage but also trouble in the refrigeration cycle. φ 6.
Packed valve handling precautions • Open the valve stem all the way; but do not try to open it beyond the stopper. Securely tighten the valve stem cap with torque in the following table: Gas side (φ 12.7 mm) 50 to 62 N·m (5.0 to 6.2 kgf·m) Gas side (φ 9.52 mm) 33 to 42 N·m (3.3 to 4.2 kgf·m) Liquid side (φ 6.35 mm) 14 to 18 N·m (1.4 to 1.8 kgf·m) Service port 14 to 18 N·m (1.4 to 1.8 kgf·m) Hexagon wrench is required. 4 mm 10-5-4. Wiring Connection 1. 2. 3. 4. 5. 6.
10-6. Grounding This air conditioner must be grounded without fail. Grounding is necessary not only to safeguard against the possibility of receiving an electric shock but also to absorb both the static, which is generated by high frequencies and held in the surface of the outdoor unit, and noise since the air conditioner incorporates a frequency conversion device (called an inverter) in the outdoor unit.
10-8.Test Operation Valve cover Gas Leak Test • Check the flare nut connections for gas leaks with a gas leak detector and/or soapy water. Check places for indoor unit Electric parts cover Check places for outdoor unit Test Operation To test the system, press and hold RESET button for 10 sec. (There will be one short beep.) RESET button Auto Restart Setting This product is designed so that, after a power failure, it can restart automatically in the same operating mode as before the power failure.
10-9. USEFUL FUNCTIONS Self-Diagnosis by LED Indication • For this outdoor unit, by referring to the 5 LED (Red) indicator lights, self-diagnosis is possible. • LEDS (Red, D09 to D13) are located on the sub-control board underneath the inverter. Indoor alarm code Contents Normal running LED indication D09 D10 D11 D12 D13 None IGBT short circuit, Compressor motor rear short 14 Trouble on position detecting circuit 16 Trouble on current detecting circuit 17 CONDENSOR PIPE TEMP.
11. HOW TO DIAGNOSE THE TROUBLE The pulse motor circuits are mounted to both indoor and outdoor units. Therefore, diagnose troubles according to the trouble diagnosis procedure as described below. (Refer to the check points in servicing written on the wiring diagrams attached to the indoor/outdoor units.) Table 11-1 No.
Precautions when inspecting the control section of the outdoor unit NOTE : A large-capacity electrolytic capacitor is used in the outdoor unit controller (inverter). Therefore, if the power supply is turned off, charge (charging voltage DC280 to 380V) remains and discharging takes a lot of time. After turning off the power source, if touching the charging section before discharging, an electrical shock may be caused. Discharge the electrolytic capacitor completely by using soldering iron, etc.
11-1. First Confirmation 11-1-1. Confirmation of Power Supply Confirm that the power breaker operates (ON) normally. 11-1-2. Confirmation of Power Voltage Confirm that power voltage is AC 220–230–240 ± 10%. If power voltage is not in this range, the unit may not operate normally. 11-1-3. Operation Which is not a Trouble (Program Operation) For controlling the air conditioner, the program operations are built in the microcomputer as described in the following table.
11-2. Primary Judgment To diagnose the troubles, use the following methods. (1) Judgment by flashing LED of indoor unit (2) Self-diagnosis by service check remote controller (3) Judgment of trouble by every symptom Firstly use the method (1) for diagnosis. Then, use the method (2) or (3) to diagnose the details of troubles. For any trouble occured at the outdoor unit side, detailed diagnosis is possible by 5-serial LED on the inverter P.C. board. 11-3.
11-4. Self-Diagnosis by Remote Controller (Check Code) (1) If the indicators light as shown B to E in Table 11-3-1, excute the self-diagnosis by the remote controller. (2) When the remote controller is set to the service mode, the indoor controller diagnoses the operation condition and indicate the information of the self-diagnosis on the display of the remote controller with the check codes.
11-4-2. Caution at Servicing (1) After servicing, push the START/STOP button to return to the normal mode. (2) After servicing by the check code, turn off breaker of the power supply, and turn on breaker of the power supply again so that memory in the microcomputer returns the initial status. However, the check codes are not deleted even if the power supply is turned off because they are stored in the fixed memory.
Operation of diagnosis function Block distinction Check code Block Outdoor P.C. board Check code Air conditioner status Cause of operation Remarks Judgment and action Current-detect circuit error All off Displayed when error is detected. Even if trying operation again, all operations stop immediately. : Replace P.C. board. Being out of place, disconnection or shortcircuit of outdoor temp. sensor (Ts) All off Displayed when error is detected. Check 5-serial LED. 1. Check outdoor temp.
11-5. Judgment of Trouble by Every Symptom 11-5-1. Indoor Unit (Including Remote Controller) (1) Power is not turned on (Does not operate entirely) 1. Is the supply voltage normal? 2. Is the normal voltage provided to the outdoor unit? 3. Is the crossover cable connected properly? 4. Is the fuse (F01) blown? Operation Check Item Considerable principle cause Turn off power supply once, and 5 second later, turn it on again.
(3) Only the indoor motor fan does not operate 1. Is it possible to detect the power supply voltage (AC220–240V) between # and $ on the terminal block? 2. Does the indoor fan motor operate in cooling operation? (In heating operation, the indoor fan motor does not operate for approximately 10 minutes after it is turned on, to prevent a cold air from blowing in.) Turn off power supply once, and turn it on again.
(4) Indoor fan motor automatically starts to rotate by turning on power supply The IC is built in the indoor fan motor. Therefore the P.C. board is also mounted to inside of the motor. If the P.C. board is soldered imperfectly or the IC is defective, the fan motor may automatically rotate by turning on power supply. 1. Remove the front panel. (Remove 2 screws.) 2. Remove the cover of the fan motor lead wires. 3.
(5) Troubleshooting for remote controller Check that A or B selected on the main unit is matched with A or B selected on the remote controller. The unit does not beep at all. Push the START/STOP button. OPERATION indicator on indoor unit is not lit. NO Is transmission mark indicated? YES Is receiver on indoor unit exposed to direct sunlight? Push RESET button on remote controller with tip of pencil.
11-5-2. Wiring Failure (Interconnecting and Serial Signal Wire) (1) Outdoor unit does not operate 1) Is the voltage between $ and % of the indoor terminal block varied? Confirm that transmission from indoor unit to outdoor unit is correctly performed based upon the following diagram. NOTE: • Measurement should be performed 2 minutes and 30 seconds after starting of the operation. • Be sure to prepare a diode for judgment.
11-6. Check Code 1C (Miswiring in indoor/outdoor units) and 1E 1C 1C 1E Disconnection of TGa sensor. TGb sensor, P.M.V sensor error (Check dode 02,1C) Miswiring in indoor/outdoor units, gas leakage, disconnection of TS/TC sensors (Check code 02, 1C) Discharge temp.
11-7. Trouble Diagnosis by Outdoor LED For the outdoor unit, the self-diagnosis is possible by five LEDs (Red). • LEDs (Red) (D11 to D15) are provided on the subcontrol board under surface of the inverter, and as shown below, they are checked from the wiring port when removing the wiring cover. (1) If a trouble occurs, LED (Red) goes on according to the trouble as described in the table below. (2) When two or more troubles occur, LEDs go on cyclically. (3) Usually, LEDs (Red) go off.
11-7. Troubleshooting 11-7-1. How to Check Whether the Air Purifier is Good or Not Turn off the power breaker once, and turn on again after 10 seconds. Does the OPERATION indicator flash? NO To item “Power supply is not turned on” Primary check YES Turn off the power breaker and remove CN34 (Micro switch connector). Short-circuit between 1 and 2 pin of CN34 at PC side, and turn on the power breaker after 10 seconds.
11-7-2. How to Check Whether the Minus Ion Generator is Good or Not Turn off the power breaker once, and turn on again after 10 seconds. Does the OPERATION indicator flash? NO To item “Power supply is not turned on” Primary check YES Turn off the power breaker and remove CN34 (Micro switch connector). Short-circuit between 1 and 2 pin of CN34 at PC side, and turn on the power breaker after 10 seconds.
11-8. How to Diagnose Trouble in Outdoor Unit 11-8-1. Summarized Inner Diagnosis of Inverter Assembly Table 11-8-1 Diagnosis/Process flowchart Item Contents Preparation Turn “OFF” the power supply breaker, and remove 3P connector which connects inverter and compressor. Check • Check whether 25A fuse on the control board assembly is blown or not. (F01) Remove connector of compressor. Check 25A fuse (Part No.F01).
Diagnosis/Process flowchart A Item Contents Check Check winding resistance between phases of compressor, and resistance between outdoor frames by using a tester. B Replace control board assembly. Check compressor winding resistance. • Is not grounded. → OK if 10MΩ or more • Is not short-circuited between windings. • Winding is not opened. → OK if 0.51Ω → 0.57Ω (Check by a digital tester.) NG Operation OK Replace control board. Summary Replace compressor.
(3) Check procedures Table 11-9-1 Check points Causes No. Procedure 1 Turn off the power supply breaker and remove the P.C. board assembly from electronic parts base. Remove the connecting cables from the terminal block. Check whether or not the fuse (F01) is blown. Impulse voltage was applied or the indoor fan motor short-circuited. 2 Remove the connector of the motor and turn on the power supply breaker.
11-9-2. P.C. Board Layout GND +12V +5V [1] Sensor characteristic table 100 Resistance value (kΩ) 90 80 TD TA TC TO TE TS TGa TGb TD 70 60 50 40 30 : Discharge temp. sensor : Room temp. sensor : Heat exchanger temp. sensor : Outdoor temp. sensor : Outdoor heat exchanger temp. sensor : Suction temp. sensor : A room Gas side temp. sonsor : B room Gas side temp.
11-9-3. Indoor Unit (Other Parts) No. 1 Part name Room temp. (TA) sensor Heat exchanger (TC) sensor Checking procedure Disconnect the connector and measure the resistance value with tester. (Normal temp.) Temperature Sensor TA, TC (kΩ) 10°C 20°C 25°C 30°C 40°C 20.7 12.6 10.0 7.9 4.5 2 Remote controller Refer to 11-5-1. (5). 3 Louver motor MP24GA Measure the resistance value of each winding coil by using the tester. (Under normal temp.
No. Part name 5 Outdoor temperature sensor (TO), discharge temperature sensor (TD), suction temperature sensor (TS), outdoor heat exchanger temperature sensor (TE), A room gas side temperature sensor (TGa), B room gas side temerature sensor (TGb) Disconnect the connector, and measure resistance value with the tester. (Normal temperature) 4-way valve coil (Model : VHV) Measure the resistance value of winding by using the tester.
11-10. How to Simply Judge Whether Outdoor Fan Motor is Good or Bad 1. Symptom • Outdoor fan motor does not rotate. • Outdoor fan motor stops within several tens seconds though it started rotating. • Outdoor fan motor rotates or does not rotate according to the position where the fan stopped, etc. Remote controller check code “02 : Outdoor block, 1A : Outdoor fan drive system error” 2. Cause The following causes are considered when the outdoor fan motor does not normally rotate.
12. HOW TO REPLACE THE MAIN PARTS WARNING • Since high voltages pass through the electrical parts, turn off the power without fail before proceeding with the repairs. Electric shocks may occur if the power plug is not disconnected. • After the repairs have been completed (after the front panel and cabinet have been installed), perform a test run, and check for smoking, unusual sounds and other abnormalities. If this check is omitted, a fire and/or electric shocks may occur.
No. ! Part name Front panel Procedures Remarks 4 ) Push “ ” part under the front panel and remove hooks of the front panel from the installation plate. Pull here Installation plate Push here Push here Front panel Push 5) Remove the front panel fixing screws (2 pcs.). 6) Push the electric parts box with the right thumb while pulling the both sides of the front panel toward you.
No. Part name " High voltage generator Procedures Remarks 1) Follow to the procedure in the item !. 2) Remove the drain guide. Connector Drain guide Air ionizer 3) To remove the air ionizer from the back body, pull it toward you while pressing down on its left and right claws. Disconnect the two leads (black) connected to the air ionizer from where they are fitted into the other components. (Caution: do not remove the Faston.
No. " Part name High voltage generator Procedures Remarks 1) Insert the high voltage generator straight into the evaporator, and secure it using the fixing screw. Check whether the leads have been completely inserted. 2) Pass the leads of the high voltage generator through the area designated and insert them into its connectors.
No. Part name Procedures # Electric parts box assembly 1) Follow the procedure up to 4) in " above. 2) Remove screw of earth lead attached to the end plate of the evaporator. 3) Remove the lead wire cover, and remove connector (5P) for the fan motor and connector (5P) for the louver motor from the electric parts box assembly. 4) Pull out TC sensor from sensor holder of the evaporator.
No. % Part name Horizontal louver Procedures Remarks 1) Remove shaft of the horizontal louver from the back body. (First remove the left shaft, and then remove other shafts while sliding the horizontal louver leftward.) Slide the horizontal louver leftward $ Evaporator (Heat exchanger) 1) Follow to the procedure in the item #. 2) Remove the pipe holder from the rear side of the main unit. 3) Remove two fixing screws at the left side of the end plate of the heat exchanger.
No. & Part name Bearing Procedures 1) Follow to the procedure in the items !. 2) Remove the two fixing screws used to secure the left edge panel of the heat exchanger, and remove the two screws used to secure the bearing base. Remarks Screw Bearing base Screw 3) Raise the left side of the heat exchanger slightly, and remove the bearing base. • If the bearing is out from the housing, push it into the specified position and then incorporate it in the main body.
No. ' Part name Fan motor Procedures Remarks 1) Follow to the procedure in the item #. 2) Loosen the set screw of the cross flow fan. 3) Remove two fixing screws of the motor band (Right), and then remove the motor band (Right). 4) Pull the fan motor outward. In assembling work, install the fan motor as follows. • When assembling the fan motor, the fan motor must be installed in such a way that the fan motor leads will be taken out is positioned at the bottom front.
No. ( Part name Cross flow fan Procedures Remarks a) At assembling work of the bearing base, check that the drain pipe is surely incorporated in the back body. (Otherwise, water leak is caused.) Drain pipe Bearing base b) To incorporate the fan motor, remove the fan motor rubber (at shaft core side), incorporate the motor into the position in the following figure, and then install the fan motor.
12-2. Microcomputer No. Part name Procedure ! Common procedure Remarks 1) Turn the power supply off to stop the operation of air-conditioner. 2) Remove the front panel. • Remove the 2 fixing screws. 3) Remove the electrical part base. Replace terminal block, microcomputer assembly and the P.C. board assembly.
12-3. Outdoor Unit No. Part name ! Common Procedures 1. Detachment Remarks Upper cabinet procedure NOTE : Wear gloves for this job. Otherwise, you may injure your hands on the parts, etc. 1) Stop operation of the air conditioner, and turn off the main switch of the breaker for air conditioner. 2) Remove the valve cover. (ST1TØ4 x 8ll 1 pc.) • After removing screw, remove the valve cover pulling it downward. 3) Remove wiring cover (ST1TØ4 x 8ll 2 pcs.), and then remove connecting cable.
No. Part name Procedures " Front cabinet 1. Detachment 1) Perform step 1 in 1. 2) Remove the fixing screws (ST1TØ4 x 8ll 2 pcs.) used to secure the front cabinet and inverter cover, the screws (ST1TØ4 x 8ll 3 pcs.) used to secure the front cabinet at the bottom plate, and the fixing screws (ST1TØ4 x 8ll 2 pcs.) used to secure the motor base. • The front cabinet is fitted into the side cabinet (left) at the front left side so pull up the top of the front cabinet to remove it. 2.
No. Part name # Inverter assembly Procedure 1) Perform work of item 1 in !. 2) Remove screw (ST1TØ4 x 8l 2 pcs.) of the upper part of the front cabinet. • If removing the inverter cover in this condition, P.C. board can be checked. • If there is no space above the unit, perform work of 1 in ". Remarks Inverter cover P. C. board (Soldered surface) Be careful to check the inverter because high-voltage circuit is incorporated in it.
No. Part name Procedures % Control board assembly 1) Disconnect the leads and connectors connected to the other parts from the control board assembly. 1) Leads • 3 leads (black, white, orange) connected to terminal block. • Lead connected to compressor : Disconnect the connector (3P). • Lead connected to reactor : Disconnect the two connectors (2P). 2) Connectors (x8) Main P.C. board CN300 : Outdoor fan motor (3P: white)* Remarks CN701 CN300 Main P.C.
No. Part name $ Side cabinet Procedures Remarks 1. Side cabinet (right) 1) Perform step 1 in " and all the steps in #. 2) Remove the fixing screw (ST1TØ4 x 8ll 5 pcs.) used for securing the side cabinet to the bottom plate and valve fixing plate. 2. Side cabinet (left) 1) Perform step 1 in ". 2) Remove the fixing screw (ST1TØ4 x 8ll 1 pcs.) used to secure the side cabinet (left) onto the heat exchanger. 3) Remove the fixing screw (ST1TØ4 x 8ll 2 pc.
No. & ' ( Part name Fan motor Compressor Reactor Procedures 1) Perform work of item 1 of ! and ". 2) Remove the flange nut fixing the fan motor and the propeller. • Flange nut is loosened by turning clockwise. (To tighten the flange nut, turn counterclockwise.) 3) Remove the propeller fan. 4) Disconnect the connector for fan motor from the inverter. 5) Remove the fixing screws (2 pc.) holding by hands so that the fan motor does not fall.
No. ) Part name Electronic expansion valve coil Procedures 1. Detachment 1) Perform step 1 in ", all the steps in # and 1 in $. 2) Remove the coil by pulling it up from the electronic control valve body. 2. Attachment 1) When assembling the coil into the valve body, ensure that the coil anti-turn lock is installed properly in the pipe. When handling the parts, do not pull the leads.
No. 11 Part name TE sensor (outdoor heat exchanging temperature sensor) Procedures Remarks • Attachment With the sensor leads pointing in the direction shown in the figure, install the sensor onto the straight pipe part of the condenser output pipe.
No. 16 Part name Replacement of temperature sensor for servicing only Common service parts of sensor TO, TS, TE, TD, TGa, TGb Remarks Procedure 1) Cut the sensor 100 mm longer than old one. 2) Cut the protective tube after pulling out it (200 mm). 3) Move the protective tube toward the thermal sensor side and tear the tip of lead wire in two then strip the covering part. 4) Pass the stripped part through the thermal constringent tube.
Outdoor unit main PCB (MCC-5009) – 120 –
Outdoor unit Sub PCB (MCC-5009) – 121 –
13. EXPLODED VIEWS AND PARTS LIST 13-1. Indoor Unit (1) 234 240 238 248 235 247 217 214 216 225 226 213 209 236 230 212 223 201 203 215 221 222 224 218 219 246 210 211 207 227 205 228 206 202 239 229 245 204 232 Location No. 201 Part No.
Indoor Unit (2) Location No. Part No. Description 401 4306A123 TERMINAL BLOCK, 2P 402 43062189 COVER, E-PARTS 403 43050382 SENSOR, TC (F6) 404 43050400 SENSOR, TA 405 4306S484 P.C.
13-2. Outdoor Unit Location No. 001 Part No.
13-3. P.C. Board Layout Cooling only model Heat pump model Location No. 701 Part No. 43050412 Description Sensor , (Heat pump) 702 43050413 Sensor , TS 703 43050415 Sensor , TO 704 43050418 705 706 Location No. 707 Part No.
Appendix Cord Heater Installation Work Applicable Models: RAS-10EAVP-E, RAS-13EAVP-E, RAS-16EAVP-E 1. Required parts for installation work (Recommendation) No. Part name Q’ty 1 Cord heater 1 Drain line heaters CSC2 (1.5m, 40W/m) by Flexelec com. (Please go to the following URL.) http://www.flexelec.com Procured locally 2 Thermostat 1 US-622AXRLQE by ASAHI KEIKI Operating temperature: on 4 ± 4°C, off 15 ± 3°C A thermostat holder is incorporated with a thermostat in the package.
Appendix No. Part name Q’ty Specifications/Vendor Remarks 13 Power cord 1 2-cores x 0.75mm² or more, H05RN-F Procured locally 14 Thermostat fixing plate 1 Material: SGCC-Z08, Board thickness: 0.
Appendix 3. Cord heater installation wiring diagram L N Fuse Thermostat Cord heater * Be sure to connect the fuse and the thermostat to LIVE side of the cord heater. Outdoor unit Earth leakage circuit breaker Power supply for air conditioner Earth leakage circuit breaker Power supply for cord heater NOTE: Separate the cord heater power from the air conditioner power, and connect it to its exclusive breaker.
Appendix 4. Cord heater installation work procedure No. 1 Photo / Explanatory diagram Procedure Remove each cabinet, inverter assembly, motor base assembly, and partition board assembly. * Do not damage the electric parts such as cables, connectors, etc. while this work. Remove the upper cabinet and the valve cover.
Appendix No. Photo / Explanatory diagram Procedure Motor base assembly Remove the motor base assembly, partition plate assembly and the sound insulation board. Related parts / Screws list Partition plate assembly Part name Screw type Quantity Motor base assembly (Including motor and fan) Ø4 × 8 2 Partition plate assembly (Including reactor) Ø4 × 8 3 1-5 Sound insulation board Used screw Remove the fixing screws of the heat exchanger and the valve fixing plate.
Appendix No. Photo / Explanatory diagram Procedure Cord heater installation work 2 Drill a hole on the outdoor unit base plate, and fix the cord heater to the outdoor unit base plate using P-shape clamp. Connect the cord heater cables. 2-1 Using a motor drill, etc., drill Ø3.2 holes on the outdoor unit base plate. (12 positions) See Appendix-10 for the additional hole positions. These holes are used to fix the cord heater to the outdoor unit base plate with P-shape clamp.
Appendix No. Photo / Explanatory diagram Procedure Rework the side cabinet (L) to remove part of it. Side cabinet (L) The area to be removed is indicated by the shaded lines in the left figure. After removing part of the side cabinet (L), deburr the edges of the side cabinet (L). 2-4 10 5 Delete Perform end process and bundling of each cable. Close-end connector insulation tape Using fixing screws (Self-tapping screw type-B Ø3.5 × 6mm), fix the thermostat to the thermostat fixing plate.
Appendix No. Photo / Explanatory diagram Procedure Assembly 3 Return a set of the refrigeration cycle assembly into the outdoor unit base plate and reassemble sound insulation board, partition plate assembly, fan motor assembly, and side cabinet (R/L) as original. Fix the thermostat fixing plate to the side cabinet (R), built in the inverter assembly, and then connect various cables. After then, incorporate front cabinet, upper cabinet, wiring cover, and valve cover as before.
Appendix 5.8 8 5. Drawing of thermostat fixing plate 37 2- 3.4 burring hole (Upward) 18 11 11 28 36 46 56 11 55 24 11 3- 3.4 burring hole (Downward) 18 45 Material: SGCC-Z08, Thickness: 0.
Appendix 6. Diagram showing positions φ3.