Page 2 - REFERENCE MANUAL; Model name
2 1 REFERENCE MANUAL 1-1. INDOOR UNIT SERVICE MANUAL Model name Service Ref. Service Manual No. OC331 PKA-RP60/100FALPKA-RP50FAL2 PKA-RP60/100FALPKA-RP50FAL2 PEAD-RP60/71/100GA PEAD-RP60/71/100GA.UK PLA-RP35/50/60/100/125BA PLA-RP35/50/60/100/125BA (1) .UK OCH412 OCB412 HWE05060 PEAD-RP50/60/71/125E...
Page 3 - SAFETY PRECAUTION; Cautions for units utilizing refrigerant R410A; Use new refrigerant pipes.; When charging directly from cylinder
3 2 SAFETY PRECAUTION Cautions for units utilizing refrigerant R410A 2-2. CAUTIONS RELATED TO NEW REFRIGERANT Use new refrigerant pipes. Make sure that the inside and outside of refrige-rant piping is clean and it has no contaminationsuch as sulfur hazardous for use, oxides, dirt, shaving particles,...
Page 4 - [4] Refrigerant leakage detection function
4 Gravimeter Unit [3] Service tools Use the below service tools as exclusive tools for R410A refrigerant. No. Tool name Specifications Gauge manifold ·Only for R410A ·Use the existing fitting specifications. (UNF1/2) ·Use high-tension side pressure of 5.3MPa·G or over. Charge hose ·Only for R410A ·U...
Page 5 - -3. PRECAUTIONS WHEN REUSING EXISTING R22 REFRIGERANT PIPES; Connecting a new air conditioner; Measure the existing pipe thickness and check for damage.; In case that existing pipes were used; Existing pipes can be reused.
5 2-3. PRECAUTIONS WHEN REUSING EXISTING R22 REFRIGERANT PIPES (1) Flowchart Connecting a new air conditioner Flaring work should be done so that flare meets the dimension for R410A. ·Use flare nut provided with indoor and outdoor unit. When using gas piping of : 19.05mm for HRP100, 125 ·Make sure t...
Page 6 - Nominal
6 (2) Cautions for refrigerant piping work New refrigerant R410A is adopted for replacement inverter series. Although the refrigerant piping work for R410A is same as for R22, exclusive tools are necessary so as not to mix with different kind of refrigerant. Furthermore as the working pressure of R4...
Page 7 - FEATURES; HIGH HEATING CAPACITY; quickly in 10 minutes. With industry-first shorter and less; WIDE HEATING RANGE; The heating range is expanded to -25; REFRIGERANT LEAKAGE DETECTION FUNCTION; Performance; Expanded
7 3 FEATURES HIGH HEATING CAPACITY Industry-first flash injection circuit is equipped, which enables to keep the equal capacity with the rating even when outside tem-perature is -15 . HIGH SPEED HEATING START UP The performance of heating start up is improved. Compared to RP type, Zubadan reduced th...
Page 8 - SPECIFICATIONS
A kW W kW * /min(CFM) dBdB mm(in.)mm(in.)mm(in.) kg(lbs) kg(lbs) L mm(in.)mm(in.) Power supply (phase, cycle, voltage) Max. current External finish Refrigerant control Compressor Model Motor output Starter type Protection devices Crankcase heaterHeat exchanger Fan Fan(drive) % No. Fan motor output A...
Page 9 - DATA; Factory; Compressor model
9 5 DATA 5-1. REFILLING REFRIGERANT CHARGE (R410A : kg) 5-2. COMPRESSOR TECHNICAL DATA Piping length (one way) 10m 20m 30m 40m 50m Factory charged 5.1 5.1 5.1 5.3 5.3 5.3 5.5 5.5 5.5 6.1 6.1 6.1 6.7 6.7 6.7 60m 7.3 7.3 7.3 75m 7.9 7.9 7.9 5.5 5.5 5.5 Service Ref. PUHZ-HRP71VHA PUHZ-HRP100VHA PUHZ-HR...
Page 10 - MICROPHONE
10 5-3. NOISE CRITERION CURVES 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATETHRESHOLD OFHEARING FORCONTINUOUSNOISE OCT A VE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 bar) BAND CENTER FREQUENCIES, Hz NC-60 NC-50 NC-40 NC-30 NC-20 NC-70 PUHZ-HRP71VHAPUHZ-HRP100VHAPUHZ-HR...
Page 12 - OUTLINES AND DIMENSIONS; Example of Notes; HRP·VHA; PIPING-WIRING DIRECTIONS
12 6 OUTLINES AND DIMENSIONS Handle f or mo ving Side Air Intak e F ront piping co ver Rear piping co v er Air intak e Rear Air Intak e Handle f or mo ving Handle f or mo ving T er minal connection Left···P o w er supply wir ing Right···Indoor/Outdoor wir ing Ear th ter minal Ser vice panel Handle f...
Page 13 - WIRING DIAGRAM
13 PUHZ-HRP71VHA PUHZ-HRP100VHA TB1MCMF1, MF221S463H TH3,TH32,TH33TH4TH6TH7TH8LEV-A, LEV-B,LEV-CDCL Terminal Block<Power Supply, Indoor/Outdoor>Motor for CompressorFan Motor Solenoid Valve (Four-Way Valve) High Pressure Switch SV 63L Low Pressure SwitchSolenoid Valve (Bypass Valve) Thermistor&...
Page 15 - WIRING SPECIFICATIONS; Electrical wiring; • Synchronized twin; Outdoor Unit
15 8 WIRING SPECIFICATIONS 8-1. FIELD ELECTRICAL WIRING (power wiring specifications) 12 S1S2S3 S1S2S3 Indoor/outdoor unit connection cable Indoor unit Unit power supply Outdoor unit Remote controller L N Earth leakage breaker Wiring circuit breaker or isolating switch Earth leakage breaker Wiring c...
Page 16 - Simultaneous twin system
16 The following connection patterns are available.The outdoor unit power supply patterns vary on models. 1:1 System <For models without heater> * The optional indoor power supply terminal kit is required. S1S2 L N 12 L N S1S2S3 S3 S1S2 L N 12 L N S1S2S3 12 L N S1S2S3 S3 * Affix a label B that...
Page 17 - The optional indoor power supply terminal kit is necessary.
17 8-3. INDOOR – OUTDOOR CONNECTING CABLE The cable shall not be lighter than design 60245 IEC or 60227 IEC. + The max. cable length may vary depending on the condition of installation, humidity or materials, etc. Indoor unit-Outdoor unit Outdoor power supply Max. 45m 3 % 1.5 (polar) 1 % Min. 1.5 Ma...
Page 19 - shield wire for electric wires.
19 8-4-3. Regulations in address settings In case of multiple grouping system, M-NET and refrigerant address settings should be done as explained in the above sec-tion. Set the lowest number in the group for the outdoor unit whose refrigerant address is “00” as its M-NET address. + Refrigerant addre...
Page 20 - REFRIGERANT SYSTEM DIAGRAM; Refrigerant flow in cooling
20 9 REFRIGERANT SYSTEM DIAGRAM PUHZ-HRP71VHA PUHZ-HRP100VHA PUHZ-HRP100YHA PUHZ-HRP125YHA Distributor Thermistor TH7(Outdoor) Heat exchanger RefrigerantGAS pipeconnection(5/8 inch) RefrigerantLIQUID pipeconnection(3/8 inch) Stop valve(with service port) Strainer#100 Powerreceiver Linearexpansion va...
Page 21 - Replacement operation procedures; Stop
21 9-1. Refrigerant recovering (pump down) Perform the following procedures to recover the refrigerant when moving the indoor unit or the outdoor unit. Turn on the power supply (circuit breaker). + When power is supplied, make sure that “CENTRALLY CONTROLLED” is not displayed on the remote controlle...
Page 22 - TROUBLESHOOTING; age, loosened connections and incorrect polarity.
22 10 TROUBLESHOOTING <Error code display by self-diagnosis and actions to be taken for service (summary)> Present and past error codes are logged and displayed on the wired remote controller and control board of outdoor unit. Actions to be taken for service, which depends on whether or not th...
Page 23 - Operating procedures
23 [TEST] button Pipe (liquid) temperature Displays the remainingtest run time. "TEST RUN" and the currently selectedoperation mode are displayed altemately. • In case of test run, the OFF timer will be activated, and the test run will automatically stop after 2 hours.• The room temperature ...
Page 24 - Test run [for wireless remote controller]; while following steps
24 ON/OFF TEMP FAN VANE MODE CHECK LOUVER TEST RUN AUTO STOP AUTO START h min TEST RUN RESET SET CLOCK , Test run [for wireless remote controller] Measure an impedance between the power supply terminal block on the outdoor unit and ground with a 500V Megger and check that it is equal to or greater t...
Page 25 - CHECK; [CHECK] and the refrigerant address are displayed on the
25 10-3-1. When a Problem Occurs During Operation ON/OFF When using remote-/local-controller combined operation, cancel the error code after turning off remote operation. During central control by a MELANS controller, cancel the error code by pressing the ON/OFF button. 10-3-2. Self-Diagnosis During...
Page 26 - FILTER
26 Transmission data from remote controller Transmission data on transmission path When the number of data errors is "02": Press the ON/OFF button twice within 3 seconds. The self-diagnosis address or refrigerant address will blink. When the error history is reset, the display will look like...
Page 27 - Malfunction-diagnosis method at maintenance service>
27 • "CHECK" lights, and refrigerant address "00" blinks.• Check that the remote controller's display has stopped before continuing. • Select the refrigerant address of the indoor unit for the self-diagnosis.Note: Set refrigerant address using the outdoor unit’s DIP switch (SW1). (Fo...
Page 29 - ; Error Code; Check the 63L side of connecting wire.
29 10-4. SELF-DIAGNOSIS ACTION TABLE <Abnormalities detected when the power is turned on> (Note 1) Refer to indoor unit section for code P and code E. Error Code Abnormal point and detection method Case Judgment and action None — No voltage is supplied to termi-nal block(TB1) of outdoor unit. ...
Page 30 - Replace outdoor controller circuit board.
30 Error Code Abnormal point and detection method Judgment and action Eb (6845) Miswiring of indoor/outdoor unit connecting wire (converse wiring or dis-connection) Outdoor controller circuit board can automatically set the unit number of indoor units.Abnormal if the indoor unit number can not be se...
Page 31 - ; High discharging temperature
31 Error Code Abnormal point and detection method Judgment and action U1 (1302) High pressure (High-pressure switch 63H worked) Abnormal if high-pressure switch 63H worked ( + ) during compressor operation. + 4.15 MPa 63H: High-pressure switch Short cycle of indoor unit Clogged filter of indoor unit...
Page 34 - UL
34 Error Code Abnormal point and detection method Judgment and action Case UP (4210) E0 or E4 Remote controller transmission error(E0)/signal receiving error(E4) Abnormal if main or sub remote con- troller cannot receive any transmission normally from indoor unit of refrigerant address “0” for 3 min...
Page 37 - Continued to the next page.
37 A6 (6606) Communication error with communica-tion processor Defective communication between unit processor and transmission processorNote) The address and attribute display at remote controller indicate the con-troller that detected abnormality. Data of transmission proces-sor or unit processor i...
Page 38 - From the previous page.; If displayed address or attribute is
38 Error Code Abnormal point and detection method Case Judgment and action A7 (6607) 5. If displayed address or attribute is FRESH MASTER, indoor unit detects abnormality when indoor unit transmits signal to FRESH MASTER and there was no reply (ACK). During sequential operation of indoor unit and FR...
Page 39 - 0-5. TROUBLESHOOTING BY INFERIOR PHENOMENA
39 10-5. TROUBLESHOOTING BY INFERIOR PHENOMENA Phenomena Factor Countermeasure 1. Remote controller display does not work. 2. “PLEASE WAIT” display is remained on the remote controller. 3. When pressing the remote controller operation switch, the OPERATION display is appeared but it will be turned o...
Page 42 - Symptoms: Nothing is displayed on the remote controller
42 AC 198V to AC 264V? AC 198V to AC 264V? AC 198V to AC 264V? DC 12V to DC 16V? DC 12V to DC 16V? NO YES NO YES NO YES YES NO YES NO Check the voltage between S1 and S2 on the terminal block (TB4) of the indoor unit which is used to connect the indoor unit and the outdoor unit. Check the voltage am...
Page 43 - Check the status
43 AC 198V to AC 264V? Are there looseness or disconnection of the indoor/ outdoor connecting wire? Is anything displayed? DC 17V to DC 28V? Is “E8” displayed? Can all the indoor unit be operated? Check the voltage between S2 and S3 on the terminal block of the outdoor unit. NO YES Not lighting. Bli...
Page 52 -
52 <Output pulse signal and the valve operation> (2) Linear expansion valve operation Open Extra tightning (about 32 pulse) Pulse number 500 pulseOpening a valveall the way Close V alve position (capacity) Opening a valve : 8 ¡ 7 ¡ 6 ¡ 5 ¡ 4 ¡ 3 ¡ 2 ¡ 1 ¡ 8 Closing a valve : 1 ¡ 2 ¡ 3 ¡ 4 ¡ 5 ...
Page 53 - (4) How to attach and detach the coil of linear expansion valve
53 Main body Lead wire Stopper Coil Be sure to attach the stopper. A (4) How to attach and detach the coil of linear expansion valve <Composition>Linear expansion valve is separable into the main body and the coil as shown in the diagram below. <How to detach the coil> Hold the lower par...
Page 54 - (2) Check the following items and cautions for emergency operation; exchanger in indoor unit.
54 10-8. EMERGENCY OPERATION (1) When the error codes shown below are displayed on outdoor unit or microcomputer for wired remote controller or indoor unit has a failure, but no other problems are found, emergency operation will be available by setting the emergency opera- tion switch (SWE) to ON an...
Page 55 - (5) Operation data during emergency operation; Tc
55 (5) Operation data during emergency operation During emergency operation, no communication is performed with the indoor unit, so the data items needed for operationare set to the following values: Operation data Intake temperature (TH1) Indoor pipe temperature (TH2) Indoor 2-phase pipe temperatur...
Page 58 - Connect to the earth; CNDC; outdoor power
58 Outdoor noise filter circuit boardPUHZ-HRP100YHAPUHZ-HRP125YHA LI1, LI2, LI3, NIPOWER SUPPLY LI1-LI2/LI-LI3/LI3-LI1 : AC380/400/415V inputLI1-NI/LI2-NI/LI3-NI : AC220/230/240V input(Connect to the terminal block (TB1)) GD1 Connect to the earth CNAC1, CNAC2AC220/230/240V (Connect to the outdoor co...
Page 59 - Brief Check of POWER MODULE
59 Outdoor power circuit boardPUHZ-HRP71VHAPUHZ-HRP100VHA TABP1Connect to 52C TABP2/SC-P2Connect to the ACTM CN4Connect to the outdoor controller circuit board (CN4) CN2Connect to the outdoor controller circuit board (CN2)1-5:Transmitting signal to the outdoor controller circuit board (0~5V DC) 2-5:...
Page 60 - Connect to DCL; : Power circuit board
60 Brief Check of POWER MODULE Usually, they are in a state of being short-circuited if they are broken. Measure the resistance in the following points (connectors, etc.). If they are short-circuited, it means that they are broken.1. Check of POWER MODULE .Check of DIODE circuit L1 - P1 , L2 - P1 , ...
Page 62 - Load; Connection and internal circuit diagram
62 Active filter module PUHZ-HRP71VHAPUHZ-HRP100VHA L1, L2Connect to the DCL(Reactor) Connect to the outdoor power circuit board(TABP1) Connect to the outdoor power circuit board(TABN1) + – IoConnect to the outdoor power circuit board(TABN2) N2Non-connect N1Non-connect PConnect to the outdoor power ...
Page 63 - Function; ON
63 + 1 Forced defrost should be done as follows. Change the DIP SW1-1 on the outdoor controller board from OFF to ON. Forced defrost will start by the above operation if all these conditions written below are satisfied. • Heat mode setting • 10 minutes have passed since compressor started operating ...
Page 65 - Special function; How to wire; Max. 10 m including local wiring
65 Special function (a) Low-level sound priority mode (Local wiring) Unit enters into Low-level sound priority mode by external signal input setting.Inputting external signals to the outdoor unit decreases the outdoor unit operation sound 3 to 4 dB lower than that of usual. Adding a commercial timer...
Page 66 - ; to connector CNM on outdoor controller board.; EF
66 <Display function of inspection for outdoor unit> The blinking patterns of both LED1(green) and LED2(red) indicate the types of abnormality when it occurs. Types of abnormality can be indicated in details by connecting an optional part “A-Control Service Tool (PAC-SK52ST)” to connector CNM ...
Page 68 - SW2 setting; Display detail; Operation indicator SW2 : Indicator change of self diagnosis; second; Display during error postponement
68 <Outdoor unit operation monitor function>[When optional part “A-Control Service Tool(PAC-SK52ST)” is connected to outdoor controller board(CNM)] Digital indicator LED1 displays 2 digit number or code to inform operation condition and the meaning of error code by controlling DIP SW2 on “A-Co...
Page 71 - Capacity
71 SW2 setting 1 ON 2 3 4 5 6 Display detail Explanation for display Unit Capacity setting display Displayed as an outdoor capacity code. Code display 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 Outdoor unit setting information Indoor pipe temperature / Liquid (TH2(1))Indoor 1– 39~88 Code display – 39~88(When the...
Page 74 - Pulse
74 SW2 setting Display detail Explanation for display Unit 1 ON 2 3 4 5 6 Pulse LEV-A opening pulse on error occurring0~480 0~480(When it is 100 pulse or more, hundreds digit, tens digit and ones digit are displayed by turns.)(Example) When 130 pulse; 0.5 secs. 0.5secs. 2 secs. Indoor room temperatu...
Page 76 - Code
76 SW2 setting Display detail Explanation for display Unit Controlling status of compressor operating frequency 1 ON 2 3 4 5 6 Code display The following code will be a help to know theoperating status of unit. Display Compressor operating frequency control Display Compressor operating frequency con...
Page 77 - FUNCTION SETTING; 1-1. UNIT FUNCTION SETTING BY THE REMOTE CONTROLLER; floor standing models.
77 11 FUNCTION SETTING Function Settings Mode No. Setting No. : Initial setting (when sent from the factory) Remarks Power failure automatic recoveryIndoor temperature detecting 1 LOSSNAY connectivity Power supply voltageAuto operating modeFrost prevention temperatureHumidifier control(Heating mode)...
Page 78 - Settings
Function Settings No. Mode No. Setting : Initial setting (Factory setting) - : Not available 4-Way cassette Ceiling concealed Wall mounted PLA-BA PEAD-EA(2) PEAD-GA PKA-GAL PKA-FAL(2) Filter sign 100h 1 2500h 07 2 No filter sign indicator 3 Air flow Quiet 1 - - (Fan speed) Standard 08 2 - - High cei...
Page 79 - 1-1-1. Selecting functions using the wired remote controller
Select mode No. 02 (room temperature detection position). Select setting No. 03 (remote controller fixed). (Use and .) Enter the setting. (Press .) Finished End function display. (Press and at the same time.) Example:Selecting room temperaturedetection position YES YES NO NO Selecting functions usin...
Page 81 - Flow of function selection procedure
81 ON/OFF TEMP FAN VANE MODE CHECK LOUVER TEST RUN AUTO STOP AUTO START h min CHECK RESET SET CLOCK ON/OFF button Check button HOUR button MINUTE button Flow of function selection procedure The flow of the function selection procedure is shown below. This example shows how to turn off the function t...
Page 82 - 1-2. FUNCTION SELECTION OF REMOTE CONTROLLER
11-2. FUNCTION SELECTION OF REMOTE CONTROLLER The setting of the following remote controller functions can be changed using the remote controller function selection mode.Change the setting when needed. Item 1 1.Change language("CHANGE LANGUAGE")2.Function limit("FUNCTION SELECTION") ...
Page 84 - MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER; TEST; Discharge temperature 69
12 MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER 12-1. HOW TO "MONITOR THE OPERATION DATA" • Turn on the [Monitoring the operation data] (1) (2) (3) (4) (5) (6) (7) (1) Press the TEST button for 3 seconds so that [ Maintenance mode] appears on the screen (at ). (2) Press the CHECK b...
Page 94 - EASY MAINTENANCE FUNCTION; Reduces maintenance work drastically.; Switching to maintenance mode; Remote controller button information; button for 3 seconds to switch to maintenance mode.; Fixed Hz operation; MODE; button to select the desired operation mode.; ] Waiting for stabilization; Stabilized; Discharge temperature 64
13 EASY MAINTENANCE FUNCTION L Reduces maintenance work drastically. L Enables you to check operation data of the indoor and outdoor units by remote controller.Furthermore, use of maintenance stable-operation control that fixes the operating frequency, allows smooth inspection, even forinverter mode...
Page 95 - Data measurement; MENU; [Display example for accumulated operating time]; Display; Twin
95 L Data measurement When the operation is stabilized, measure operation data as explained below. (4) Press the [TEMP] buttons ( and ) to select the desired refrigerant address. [Screen ] (5) Select the type of data to be displayed. After selecting, go to step (6). Compressor information MENU butto...
Page 96 - Check Points; Enter the temperature differences between; Cool mode; Result
13-2. GUIDE FOR OPERATION CONDITION Inspection item Result Power supply Loose con- nection Breaker Good Retightened Terminal block Outdoor Unit Good Retightened Indoor Unit Good Retightened (Insulation resistance) M (Voltage) V Accumulated operating time Time Number of ON/OFF times Times Current A R...
Page 97 - Remote controller button position; Press button for more than 3 seconds to switch to; How to start the initial learning; Press CLOCK button and select the [GAS LEAK TEST START]; ] Waiting for stabilization; How to finish the initial learning; 'Press button for more than 3 seconds to cancel the initial leaning.
13-3. INITIAL SETTINGS FOR REFRIGERANT LEAKAGE DETECTION FUNCTION Operation mode Compressor information Outdoor unit information Indoor unit information Confirm N Remote controller button position Stabilized After 45 minutes This air conditioner (Outdoor unit) can detect refrigerant leakage which ma...
Page 99 - Removing the service panel and top panel; cuit board in electrical parts box.; Removing the electrical parts box; supply wire from terminal block.; Photo 1; DISASSEMBLY PROCEDURE
99 OPERATING PROCEDURE PHOTOS & ILLUSTRATION PUHZ-HRP71VHA PUHZ-HRP100VHA 1. Removing the service panel and top panel (1) Remove 3 service panel fixing screws (5 10) and slide the hook on the right downward to remove the servicepanel. (2) Remove screws (3 for front, 3 for rear/5 10) of the top p...
Page 100 - Photo 4; Sensor holder; Photo 5; Clamp
100 OPERATING PROCEDURE PHOTOS Photo 4 4. Removing the thermistor <Outdoor 2-phase pipe> (TH6) and thermistor <Outdoor>(TH7) (1) Remove the service panel. (See figure 1.)(2) Remove the top panel. (See figure 1.)(3) Disconnect the connectors TH7/6 (red) on the controller circuit board in ...
Page 101 - Photo 9
101 OPERATING PROCEDURE PHOTOS 7. Removing the 4-way valve coil (21S4), and linear expansion valve coil (LEV-A, LEV-B, LEV-C) (1) Remove the service panel. (See figure 1.)(2) Remove the top panel. (See figure 1.) [Removing the 4-way valve coil] (3) Remove 4-way valve coil fixing screw (M4 6). (4) Re...
Page 102 - rear of the unit and remove the right side panel.; Note 1: Recover refrigerant without spreading it in the; remove the capacitor.; Electrical parts box
102 OPERATING PROCEDURE PHOTOS 11. Removing bypass valve coil (SV) and bypass valve (1) Remove the service panel. (See figure 1.)(2) Remove the top panel. (See figure 1.)(3) Remove 3 right side panel fixing screws (5 10) in the rear of the unit and remove the right side panel. (4) Remove the bypass ...
Page 103 - Note: Recover refrigerant without spreading it in the air.
103 OPERATING PROCEDURE PHOTOS 13. Removing the compressor (MC) (1) Remove the service panel. (See figure 1.)(2) Remove the top panel. (See figure 1.)(3) Remove 2 front cover panel fixing screws (5 10) and remove the front cover panel. (See photo 3.) (4) Remove 2 back cover panel fixing screws (5 10...
Page 104 - panel and remove it.; Photo 3
104 OPERATING PROCEDURE PHOTOS & ILLUSTRATION PUHZ-HRP100YHA PUHZ-HRP125YHA 1. Removing the service panel and top panel (1) Remove 3 service panel fixing screws (5 10) and slide the hook on the right downward to remove the service panel. (2) Remove screws (3 for front, 3 for rear/5 10) of the to...
Page 105 - Disassembling the electrical parts box
105 OPERATING PROCEDURE PHOTOS & ILLUSTRATION 4. Disassembling the electrical parts box (1) Disconnect all the connectors on the controller circuit board. (2) Remove the 3 screws, screw , and , that fix the plate equipped with the outdoor controller circuit board,and the electrical parts box, sc...
Page 106 - circuit board in the electrical parts box.
OPERATING PROCEDURE PHOTOS Photo 9 5. Removing the thermistor <Outdoor 2-phase pipe> (TH6) and thermistor <Outdoor> (TH7) (1) Remove the service panel. (See figure 1.)(2) Remove the top panel. (See figure 1.)(3) Disconnect the connectors, TH7/6 (red) on the controller circuit board in th...
Page 108 - Bypass valve
OPERATING PROCEDURE PHOTOS Photo 15 12. Removing bypass valve coil (SV) and bypass valve (1) Remove the service panel. (See figure 1.)(2) Remove the top panel. (See figure 1.)(3) Remove 3 right side panel fixing screws (5 10) in the rear of the unit and remove the right side panel. (4) Remove the by...
Page 109 - OPERATING PROCEDURE
109 13. Removing the reactors (ACL1, ACL2, ACL3) (1) Remove the service panel. (See figure 1.)(2) Remove the top panel. (See figure 1.)(3) Remove the 6 screws, that fix the front panel and remove the front panel. (4) Remove the 2 screws, screw and (both 4 10), that fix the separator, screw from the ...
Page 110 - Removing the power receiver
OPERATING PROCEDURE PHOTOS 15. Removing the power receiver (1) Remove the service panel. (See figure 1.) (2) Remove the top panel. (See figure 1.) (3) Remove 2 front cover panel fixing screws (5 10) and remove the front cover panel. (4) Remove 2 back cover panel fixing screws (5 10) and remove the b...
