Page 2 - REFERENCE MANUAL; Model name
2 1 REFERENCE MANUAL 1-1. INDOOR UNIT SERVICE MANUAL Model name Service Ref. Service Manual No. PLA-RP35/50/60/71AA PLA-RP35/50/60/71AA.UK OC335 PLA-RP35/50/60/71AA OC327 OC328 PLA-RP100/125/140AA2 PLA-RP100/125/140AA2.UK PCA-RP50/60/71/100/125/140GAPCA-RP50GA2 PCA-RP50/60/71/100/125/140GAPCA-RP50GA...
Page 3 - SAFETY PRECAUTION; Cautions for units utilizing refrigerant R410A; Use new refrigerant pipes.; Be sure to use a filter drier for new refrigerant.
3 2 SAFETY PRECAUTION Cautions for units utilizing refrigerant R410A 2-1. 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 - Specifications; [4] Refrigerant leakage detection function
4 Gravimeter Unit [3] Service tools Use the below service tools as exclusive tools for R410A refrigerant. No. Specifications 1 Gauge manifold ·Only for R410A ·Use the existing fitting specifications. (UNF1/2) ·Use high-tension side pressure of 5.3MPa·G or over. 2 Charge hose ·Only for R410A ·Use pre...
Page 5 - -2. PRECAUTIONS WHEN REUSING EXISTING R22 REFRIGERANT PIPES; Connecting a new air conditioner; In case existing pipes were used
5 2-2. PRECAUTIONS WHEN REUSING EXISTING R22 REFRIGERANT PIPES (1) Flowchart Connecting a new air conditioner 1 Flaring work should be done so that flare meets the dimension for R410A. Use flare nut provided with indoor and outdoor unit. 2 When using gas piping of [ 19.05mm for RP100, 125 or 140. Ma...
Page 7 - FEATURES; REFRIGERANT LEAKAGE DETECTION FUNCTION
7 3 FEATURES CHARGELESS SYSTEMPRE-CHARGED REFRIGERANT IS SUPPLIED FOR PIPING LENGTH AT SHIPMENT.Max.30m(PUHZ-RP35/50/60/71/100/125/140) The refrigerant circuit with LEV(Linear Expansion Valve) and power receiver always control the optimal refrigerantlevel regardless of the length (30m max. and 5m mi...
Page 8 - SPECIFICATIONS; OUTDOOR UNIT
8 4 SPECIFICATIONS AA kW W kW K /min(CFM) dBdB mm(in.)mm(in.)mm(in.) kg(lbs) kg(lbs) L mm(in.)mm(in.) Power supply (phase, cycle, voltage) Running currentMax. current External finishRefrigerant controlCompressor ModelMotor outputStarter typeProtection devices Crankcase heaterHeat exchangerFan Fan(dr...
Page 10 - DATA; Factory; Unit
10 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 2.1 2.1 3.1 3.1 4.6 4.6 4.6 2.3 2.3 3.3 3.3 4.8 4.8 4.8 2.5 2.5 3.5 3.5 5.0 5.0 5.0 2.7 2.7 4.1 4.1 5.6 5.6 5.6 2.9 2.9 4.7 4.7 6.2 6.2 6.2 60m — — — — ...
Page 11 - OCT
11 5-3. NOISE CRITERION CURVES 1.5m 1m MICROPHONE UNIT GROUND APPROXIMATETHRESHOLD OFHEARING FORCONTINUOUSNOISE NC-60 NC-50 NC-40 NC-30 NC-20 NC-70 PUHZ-RP35VHA2PUHZ-RP50VHA2 COOLING MODE HEATING 44 SPL(dB) 46 LINE 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATETHRESHOLD OF...
Page 15 - OUTLINES AND DIMENSIONS; Minimum installation space for outdoor unit; Basically open; Free space around the outdoor unit; ATTACHING THE CONDUIT
15 6 OUTLINES AND DIMENSIONS Service panel for charge plug w 1 In the place where short cycle tends to occur, cooling and heating capacity and power consumption might get lowered 10%. Air outlet guide (optional PAC-SG58SG) will help them improve. w 2 If air discharges to the wall, the surface might ...
Page 17 - Side Air Intake; PIPING-WIRING DIRECTIONS
17 2 1 Handle for moving Service panel Handle for moving Handle for moving Rear Air Intake Air intake Rear piping cover Front piping cover Side Air Intake Handle for moving Piping Knock-Out Hole Details Example of Notes • • • Refrigerant GAS pipe connction (FLARE) [ 15.88 (5/8F) • • • Refrigerant LI...
Page 18 - WIRING DIAGRAM
18 7 WIRING DIAGRAM PUHZ-RP35VHA2 PUHZ-RP50VHA2 PUHZ-RP60VHA2 PUHZ-RP71VHA2 SYMBOL M-NET ADAPTER NAME TB7CN5CNDCN2MSW1SW11 Terminal Block<M-net connection>Connector<Transmission>Connector<Power Supply>Connector<M-NET communication>Switch<Status of communication>Switch&l...
Page 21 - WIRING SPECIFICATIONS; Synchronized twin and triple system Electrical wiring; • Synchronized twin; Install an earth longer than other cables.
21 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 B N B Earth leakage breaker C wiring circuit breaker or isolating switch C B B Earth leakage brea...
Page 22 - Simultaneous twin/triple system
22 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 A C B D J E B C F G H S1S2 L N 12 L N S1S2S3 12 L N S1S2S3 12 L...
Page 23 - The optional indoor power supply terminal kit is necessary
23 8-3. INDOOR – OUTDOOR CONNECTING CABLE The cable shall not be lighter than design 245 IEC or 227 IEC. w 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 o 1.5 (polar) 1 o Min. 1.5 Max. 5...
Page 25 - shield wire for electric wires.
25 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. w Refrigerant addre...
Page 26 - REFRIGERANT SYSTEM DIAGRAM
26 9 REFRIGERANT SYSTEM DIAGRAM PUHZ-RP60VHA2PUHZ-RP71VHA2 PUHZ-RP35VHA2PUHZ-RP50VHA2 Thermistor TH7(Outdoor) Heat exchanger Refrigerant GAS pipeconnection(1/2F) Refrigerant LIQUID pipeconnection(1/4F) Stop valve Strainer#100 Powerreceiver Linear expansion valve B Thermistor TH6(Outdoor 2-phase pipe...
Page 28 - Unit replacement operation; • Replacement operation procedures; Start and finish of test run; • Operation from the indoor unit; A B
2. Unit replacement operation When reusing the existing pipes that carried R22 refrigerant for the RP100, RP125 and RP140 models, replacementoperation must be performed before performing a test run. 1 If new pipes are used, these procedures are not necessary. 2 If existing pipes that carried R22 ref...
Page 29 - TROUBLESHOOTING; age, loosened connections and incorrect polarity.
29 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 the ...
Page 30 - be displayed regardless of incorrect wiring.; In case OUTDOOR BOARD LED is digital display, — and —; will be displayed alternately every second.; Operating procedures
30 [TEST] button Pipe (liquid) temperature Displays the remainingtest run time. "TEST RUN" and the currently selectedoperation mode are displayed altemately. A B C • In case of test run, the OFF timer will be activated, and the test run will automatically stop after two hours.• The room temp...
Page 31 - Test run [for wireless remote controller]; while following steps
31 ON/OFF TEMP FAN VANE MODE CHECK LOUVER TEST RUN AUTO STOP AUTO START h min TEST RUN RESET SET CLOCK 7 5 6 2 3 , 4 Test run [for wireless remote controller] Measure an impedance between the power supply terminal block onthe outdoor unit and ground with a 500V Megger and check that it isequal to or...
Page 32 - To clear the error code, press the; CHECK
32 10-3. HOW TO PRECEED "SELF-DIAGNOSIS" 10-3-1. When a Problem Occurs During Operation If a problem occurs in the air conditioner, the indoor and outdoor units will stop,and the problem is shown in the remote controller display. [CHECK] and the refrigerant address are displayed on the tempe...
Page 33 - FILTER
33 Transmission data from remote controller Transmission data on transmission path When the number of data errors is "02": D Press the ON/OFF button twice within three seconds. The self-diagnosis address or refrigerant address will flash. When the error history is reset, the display will loo...
Page 34 - Malfunction-diagnosis method at maintenance service>
34 [Procedure] 1. Press the CHECK button twice. 2. Press the temperature buttons. 3. Point the remote controller at the sensor on the indoor unit andpress the HOUR button. 4. Point the remote controller at the sensor on the indoor unit andpress the ON/OFF button. • "CHECK" lights, and refrig...
Page 36 - ; Error Code Meaning of error code and detection method
36 10-4. SELF-DIAGNOSIS ACTION TABLE <Abnormalities detected when the power is put on> (Note 1) Refer to indoor unit section for code P and code E. Error Code Meaning of error code and detection method Case Judgment and action None — 1 No voltage is supplied to terminalblock(TB1) of outdoor un...
Page 37 - Eb; Case; Defective indoor power board.
37 Error Code Meaning of error code and detection method Judgment and action Eb (6845) Mis-wiring of indoor/outdoor unit connecting wire (converse wiring ordisconnection)Outdoor controller circuit board can automatically set the unit number of indoorunits.Abnormal if the indoor unit number can not b...
Page 38 -
38 <Abnormalities detected while unit is operating> Error Code Meaning of error code and detection method Judgment and action U1 (1302) Abnormal high pressure (High-pressureswitch 63H worked)Abnormal if high-pressure switch 63Hworked ( w ) during compressor operation. w 4.15 MPa 63H: High-pres...
Page 40 - Check facility of power supply.
40 Error Code Meaning of error code and detection method Case Judgment and action U7 (1520) Abnormality of super heat due to lowdischarge temperatureAbnormal if discharge super heat is continuously detected less than or equal to -15 : for 3 minutes even though linear expansion valve has minimum open...
Page 41 - If the unit is not normal after replacing
41 Error Code Meaning of error code and detection method Judgment and action UL (1300) Abnormal low pressureAbnormal if the following conditions aredetected for continuously 3 minutes aftercompressor starts heating operating for 10minutes. 1. Heating mode Detection mode1 TH7-TH3 [ 4 : and TH5-Indoor...
Page 44 - Continued to the next page.; Error Code
44 A6 (6606) Communication error with communica-tion processorDefective communication between unitprocessor and transmission processorNote) The address and attribute display at remote controller indicate the con-troller that detected abnormality. 1 Data of transmission proces-sor or unit processor i...
Page 45 - From the previous page.; If displayed address or attribute is
45 Error Code Meaning of error code and detection method Case Judgment and action A7 (6607) 5. If displayed address or attribute is FRESH MASTER, Indoor unit detects abnormality whenindoor unit transmitted to FRESH MAS-TER and there was no reply (ACK). 1 During sequential operation ofindoor unit and...
Page 46 - 0-5. TROUBLESHOOTING BY INFERIOR PHENOMENA
46 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 OPERATIONdisplay is appeared but it will beturned off ...
Page 49 - Symptoms: Nothing is displayed on the remote controller
49 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 50 - Check the status
50 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 59 -
59 <Output pulse signal and the valve operation> (2) Linear expansion valve operation A B C 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 → ...
Page 63 - (2) Check the following items and cautions for emergency operation; this period, cold air will blow out from the indoor unit.
63 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 and...
Page 64 - (5) Operation data during emergency operation; Tc
64 (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 fluid pipe temperature (TH2) Indoor 2-phase pipe temp...
Page 65 - SWP
65 10-9. TEST POINT DIAGRAMOutdoor controller circuit boardPUHZ-RP35VHA2 PUHZ-RP50VHA2 PUHZ-RP60VHA2 PUHZ-RP71VHA2PUHZ-RP100VHA2 PUHZ-RP125VHA2 PUHZ-RP140VHA2PUHZ-RP100YHA2 PUHZ-RP125YHA2 PUHZ-RP140YHA2 Communicationpower supply ZD71 Voltage developed across:16-30V DC – + CNS (Indoor/outdoor unit co...
Page 69 - Connect to the earth; CNDC; outdoor power
69 Outdoor noise filter circuit boardPUHZ-RP100YHA2PUHZ-RP125YHA2PUHZ-RP140YHA2 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 ...
Page 71 - Brief Check of POWER MODULE
71 Outdoor power circuit boardPUHZ-RP100VHA2PUHZ-RP125VHA2PUHZ-RP140VHA2 TABP1Connect to 52C TABP2/SC-P2Connect to theACTM CN4Connect to theoutdoor controllercircuit board(CN4) CN2Connect to the outdoor controller circuit board(CN2)1-5:Transmitting signal to the outdoor controller circuit board (0~5...
Page 72 - and the CK
72 Brief Check of POWER MODULE W 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 1 .Check of DIODE circuit L1 - P1 , L2 - P...
Page 78 - SW2 setting; Display detail; second
78 <Outdoor unit operation monitor function>[When option 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-Contr...
Page 84 - Pulse
84 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 temper...
Page 86 - FUNCTION SETTING; Function; 1-1. UNIT FUNCTION SETTING BY THE REMOTE CONTROLLER; setting the
86 11 FUNCTION SETTING Function Settings No. Mode No. Setting Initial setting (Factory setting) - : Not available 4-Way cassette Ceiling concealed Ceiling suspended Wall mounted Floor standing PLA-AA(2) PEAD-EA(2) PCA-GA(2) PCA-HA PKA-GAL PSA-GA PEAD-GA PKA-FAL(2) Filter sign 100Hr 1 2500Hr 07 2 No ...
Page 87 - 1-1-1. Selecting functions using the wired remote controller
87 6 Select mode No. 02 (room temperature detection position). 7 Select setting No. 03 (remote controller fixed). (Use F and G .) 8 Enter the setting. (Press E .) Finished 0 Ending function display (Press A and B at the same time.) Example:Selecting room temperaturedetection position YES YES NO NO 9...
Page 90 - 1-2. FUNCTION SELECTION OF REMOTE CONTROLLER
90 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 91 - Flowchart of Function Setting
91 OFF no1 no2 OFF ON OFF ON OFF OFF CALL- ON OFF ON OFF : ° F PAR-21MAA ON/OFF FILTER CHECK OPERATION CLEAR TEST TEMP. MENU BACK DAY MONITOR/SET CLOCK ON/OFF F E G C D H B A I G G G G G G E E G G G G E G E G G G G D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D EN GE ES RU IT ZH FR JA H...
Page 92 - MONITORING THE OPERATION DATABY THE REMOTE CONTROLLER; TEST; Discharge temperature 69
92 12 MONITORING THE OPERATION DATABY THE REMOTE CONTROLLER 12-1. HOW TO "MONITOR THE OPERATION DATA" • Turn on the [Monitoring the operation data] A D C B (1) (2) (3) (4) (5) (6) (7) (1) Press the TEST button for three seconds so that [ Maintenance mode] appears on the screen (at A ). (2) P...
Page 102 - EASY MAINTENANCE FUNCTION; Reduces maintenance work drastically.; Remote controller button information; button for three seconds to switch to maintenance mode.; MODE; button to select the desired operation mode.; ] Waiting for stabilization; Stabilized; Discharge temperature 64; Conventional inspection work
102 13 EASY MAINTENANCE FUNCTION ● Reduces maintenance work drastically. ● 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 for inverter...
Page 103 - [Display example for accumulated operating time]; Display; Twin
103 ● Data measurementWhen the operation is stabilized, measure operation data as explained below. (4) Press the [TEMP] buttons ( and ) to select the desired refrigerant address. [Screen B ] (5) Select the type of data to be displayed. After selecting, go to step (6). Compressor information MENU but...
Page 104 - Check Points; Enter the temperature differences between; Classification; Result
104 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 1 Accumulated operating time Time 2 Number of ON/OFF times Time...
Page 105 - Remote controller button position; Press button for more than three seconds to switch to; How to start the initial learning; Press CLOCK button and select the [GAS LEAK TEST START]; ] Waiting for stabilization; 'Press button for more than 3 seconds to cancel the initial leaning.
105 13-3 INITIAL SETTINGS FOR REFRIGERANT LEAKAGE DETECTION FUNCTION D A C B Operation mode Compressor information Outdoor unit information Indoor unit information Confirm ■ Remote controller button position Stabilized After 45 minutes This air conditioner (Outdoor unit) can detect refrigerant leaka...
Page 107 - DISASSEMBLY PROCEDURE; OPERATING PROCEDURE; back panel; right and 3 from the rear side, and detach the back panel.; Removing the fan motor; board in the electrical parts box.; Photo 1
107 14 DISASSEMBLY PROCEDURE OPERATING PROCEDURE PHOTOS PUHZ-RP35VHA2 PUHZ-RP50VHA2 1. Removing the top panel, service panel, front panel and back panel (1) Remove the top panel fixing screws (4 ✕ 10), one from the right and two from the eft side, and detach the top panel. (2) Remove 1 service panel...
Page 108 - (6) Loosen the clamp for the lead wire in the rear of the; Removing the electrical parts box; ; Photo 5; Clamp
108 Electrical parts box Controller circuitboard (C.B.) Electrical parts box fixingscrew Terminal block (TB1) OPERATING PROCEDURE PHOTOS 4. Removing the thermistor <Outdoor 2-phase pipe> (TH6) and thermistor <Outdoor pipe> (TH3) (TH33) (1) Remove the service panel. (See photo 2.)(2) Remo...
Page 109 - Photo 7; sliding the coil to the right.; Sensor holder; Photo 8
109 OPERATING PROCEDURE PHOTOS 5. Removing the thermistor <Outdoor> (TH7) (1) Remove the service panel. (See figure 1.)(2) Remove the top panel. (See figure 1.)(3) Disconnect the connector TH7 (red) on the controller circuit board in the electrical parts box. (4) Loosen the clamp for the lead ...
Page 110 - ing the right side panel.; The reactor is attached to the rear of the electrical parts box.
110 OPERATING PROCEDURE PHOTOS 8. Removing the four-way valve (1) Remove the service panel. (See photo 2.)(2) Remove the top panel. (See photo 1.)(3) Remove the front panel. (See photo 1.)(4) Remove the back panel. (See photo 1.)(5) Remove the electrical parts box. (See photo 5.)(6) Remove the solen...
Page 111 - Valve bed; (9) Remove the welded pipe of motor for compressor inlet; Receiver leg; Removing the power receiver; (9) Remove the power receiver together with the receiver leg.; Note: Collect refrigerant without spreading it in the air.
111 OPERATING PROCEDURE PHOTOS Photo 13 Photo 14 Motor forcompressor(MC) Valve bed Separator Separatorfixing screw Compressorfixing nut Powerreceiver Powerreceiver Outlet Inlet 12. Removing the motor for compressor (MC) (1) Remove the service panel. (See photo 2.)(2) Remove the top panel. (See photo...
Page 112 - Removing the service panel and top panel; Figure 1; (5) Disconnect the connector CNF1 on controller circuit; Photo 3; ) from the valve bad to
112 OPERATING PROCEDURE PHOTOS & ILLUSTRATION PUHZ-RP60VHA2 PUHZ-RP71VHA2 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 ...
Page 113 - Photo 4
113 Thermistor <Outdoor 2-phase pipe>(TH6) OPERATING PROCEDURE PHOTOS Photo 4 4. Removing the thermistor <Outdoor 2-phase pipe> (TH6) (1) Remove the service panel. (See figure 1.)(2) Remove the top panel. (See figure 1.)(3) Disconnect the connectors, TH6 and TH7 (red), on the controller ...
Page 114 - Stop valve
114 OPERATING PROCEDURE PHOTOS 7. Removing the solenoid valve coil <Four-way valve> (21S4), linear expansion valve coil (LEV(A), LEV(B)) and solenoid valve coil <Bypass valve> (SV) (1) Remove the service panel. (See figure 1.)(2) Remove the top panel. (See figure 1.)(3) Remove the electr...
Page 115 - Removing the bypass valve; removing the right side panel.; Reactor fixing screw; rear of the unit and remove the right side panel.; removing the right side panel.; Reactor fixing screws
115 OPERATING PROCEDURE PHOTOS 10. Removing the bypass valve (1) Remove the service panel. (See figure 1.)(2) Remove the top panel. (See figure 1.)(3) Remove the electrical parts box. (See photo 3.)(4) Remove 3 right side panel fixing screws (5 ✕ 10) in the rear of the unit and remove the right side...
Page 120 - bypass valve; Electrical parts box
120 OPERATING PROCEDURE PHOTOS 10. Removing solenoid valve coil <Bypass valve> (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 pane...
Page 122 - circuit board in electrical parts box.
122 OPERATING PROCEDURE PHOTOS & ILLUSTRATION PUHZ-RP100YHA2 PUHZ-RP125YHA2 PUHZ-RP140YHA2 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 rea...
Page 123 - Disassembling the electrical parts box
123 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 1 , 2 and 3 , that fix the plate equipped with the outdoor controller circuit board, and the electrical parts b...
Page 124 - controller circuit board in the electrical parts box.; replace it together with thermistor
124 OPERATING PROCEDURE PHOTOS Photo 10 5. Removing the thermistor <Outdoor 2-phase pipe> (TH6) (1) Remove the service panel. (See figure 1.)(2) Remove the top panel. (See figure 1.)(3) Disconnect the connectors, TH6 and TH7 (red), on the controller circuit board in the electrical parts box. (...
Page 127 - and; Note 2: The reactor box is also removable.
127 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, screw 8 and 9 (5 ✕ 10), that fix the front panel and remove the front panel. (See photo 3.) (4) Remove the 2 screws, screw 0 and 1 (both 4 ✕...
Page 133 - Part numbers that are circled are not shown in the figure.
133 Price Part No. Part Name Specification No. Wiring Diagram Symbol Recom- mended Q , ty Unit Amount Remarks (Drawing No.) Q , ty/set PUHZ-RP35VHA2PUHZ-RP50VHA2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 MF1 MC TH4 TH3 21S4 LEV(A) 63H LEV(B) TH6,7 ACL TB1 N.F. C.B...
Page 137 - Part numbers that are circled are not shown in the figures.
137 Part No. Part Name Specification No. Wiring Diagram Symbol Recom- mended Q , ty Unit Amount Remarks (Drawing No.) Q , ty/set 100 125 VHA2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 2 2 2 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1...
Page 140 - RoHS PARTS LIST
140 16 RoHS PARTS LIST FUNCTIONAL PARTSPUHZ-RP35VHA2PUHZ-RP50VHA2 1 3 4 2 5 6 7 8 9 10 11 12 13 14 17 15 16 18 19 20 21 22 23 24 25 26 27 OC374A--5.qxp 06.7.26 6:01 PM Page 140
Page 141 - RoHS
141 Price Part No. Part Name Specification No. Wiring Diagram Symbol Recom- mended Q , ty Unit Amount Remarks (Drawing No.) Q , ty/set PUHZ-RP35VHA2PUHZ-RP50VHA2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 RoHS G G G G G G G G G G G G G G G G G G G G G G G G G G G G...
Page 147 - Wiring
147 Part No. Part Name Specification No. RoHS Wiring Diagram Symbol Recom- mended Q , ty Unit Amount Remarks (Drawing No.) Q , ty/set 100 125 YHA2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 G G G G G G G G G G G G G G G G G G G G G G G...
