SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS October 2007 No.OCH425 SERVICE MANUAL R410A Outdoor unit [model names] PUHZ-HRP71VHA PUHZ-HRP100VHA PUHZ-HRP100YHA PUHZ-HRP125YHA [Service Ref.] PUHZ-HRP71VHA PUHZ-HRP100VHA PUHZ-HRP100YHA PUHZ-HRP125YHA NOTE: • This manual describes only service data of the outdoor units. • RoHS compliant products have mark on the spec name plate. CONTENTS 1. REFERENCE MANUAL·································· 2 2. SAFETY PRECAUTION ································· 3 3.
1 REFERENCE MANUAL 1-1. INDOOR UNIT SERVICE MANUAL Model name Service Ref. PLA-RP35/50/60/100/125BA PLA-RP35/50/60/100/125BA(1).UK PKA-RP60/100FAL PKA-RP50FAL2 PKA-RP60/100FAL PKA-RP50FAL2 PEAD-RP50/60/71/125EA PEAD-RP100EA2 PEAD-RP50/60/71/125EA.UK PEAD-RP100EA2.UK PEAD-RP60/71/100GA PEAD-RP60/71/100GA.UK 1-2. TECHNICAL DATABOOK Manual No. OCS11 2 Service Manual No.
2 SAFETY PRECAUTION 2-1. ALWAYS OBSERVE FOR SAFETY Before obtaining access to terminal, all supply circuits must be disconnected. 2-2. CAUTIONS RELATED TO NEW REFRIGERANT Cautions for units utilizing refrigerant R410A Use new refrigerant pipes. Do not use refrigerant other than R410A. In case of using the existing pipes for R22, be careful with the followings. · Be sure to perform replacement operation before test run. · Change flare nut to the one provided with this product. Use a newly flared pipe.
Unit Gravimeter [3] Service tools Use the below service tools as exclusive tools for R410A refrigerant. No. Tool name Gauge manifold Specifications ·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 ·Use pressure performance of 5.09MPa·G or over. Electronic scale Gas leak detector ·Use the detector for R134a, R407C or R410A. Adaptor for reverse flow check ·Attach on vacuum pump.
2-3. PRECAUTIONS WHEN REUSING EXISTING R22 REFRIGERANT PIPES (1) Flowchart Measure the existing pipe thickness and check for damage. The existing pipe thickness meets specifications and the pipes are not damaged. The existing pipe thickness does not meet specifications or the pipes are damaged. Check if existing air conditioner can operate. Existing air conditioner can operate. Perform cooling operation for about 30 minutes and then do a pump down work. Disconnect existing air conditioner from piping.
(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 R410A is 1.6 time higher than that of R22, their sizes of flared sections and flare nuts are different.
3 FEATURES PUHZ-HRP71/100VHA PUHZ-HRP100/125YHA Industry-first flash injection circuit is equipped, which enables to keep the equal capacity with the rating even when outside temperature is -15 . Performance about 30%UP (kW) 15 HRP125 Heating capacity HIGH HEATING CAPACITY 25 RP1 HRP100 00 RP1 10 HRP71 RP71 0 -25 -20 -15 -10 -5 0 Outdoor W.B. temp.
4 SPECIFICATIONS PUHZ-HRP71VHA Service Ref. OUTDOOR UNIT Mode Power supply (phase, cycle, voltage) Max. current External finish Refrigerant control Compressor Model Motor output Starter type Protection devices Crankcase heater Heat exchanger Fan Fan(drive) % No. Fan motor output Airflow Defrost method Noise level Dimensions REFRIGERANT PIPING Charge Connection method Between the indoor & outdoor unit A kW OUTDOOR UNIT 52 53 950(37-3/8) 330+30(13+1-3/16) 1,350(53-1/8) 120(265) R410A 5.5(12.
5 DATA 5-1. REFILLING REFRIGERANT CHARGE (R410A : kg) 10m 20m Piping length (one way) 30m 40m 50m 60m 75m Factory charged PUHZ-HRP71VHA 5.1 5.3 5.5 6.1 6.7 7.3 7.9 5.5 PUHZ-HRP100VHA PUHZ-HRP100YHA 5.1 5.3 5.5 6.1 6.7 7.3 7.9 5.5 PUHZ-HRP125YHA 5.1 5.3 5.5 6.1 6.7 7.3 7.9 5.5 Service Ref. For pipe longer than 30m, additional charge is required. 5-2. COMPRESSOR TECHNICAL DATA Serice Ref.
5-3. NOISE CRITERION CURVES PUHZ-HRP71VHA PUHZ-HRP100VHA PUHZ-HRP100YHA PUHZ-HRP125YHA MODE SPL(dB) COOLING 52 HEATING 53 LINE OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 bar) 90 80 70 NC-70 60 NC-60 50 NC-50 40 NC-40 30 NC-30 20 10 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE 63 125 NC-20 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES, Hz MICROPHONE 1m UNIT 1.
5-4. STANDARD OPERATION DATA PEAD-RP71EA Representative matching Electrical circuit Total Mode Refrigerant circuit PEAD-RP125EA Cooling Heating Cooling Heating Cooling Heating Capacity W 7,100 8,000 10,000 11,200 12,500 14,000 Input kW 2.15 2.34 3.06 3.10 3.89 3.88 Indoor unit PEAD-RP71EA PEAD-RP100EA2 PEAD-RP125EA Phase , Hz 1 , 50 1 , 50 1 , 50 230 230 230 Voltage V Current A Outdoor unit 1.55 1.55 2.62 2.62 2.62 2.
FREE Ov er 10m m mm 0 15 er Ov 10 Over Service space ···Refrigerant LIQUID pipe connection (FLARE)W 9.
WIRING DIAGRAM [LEGEND] SYMBOL TB1 MC MF1, MF2 21S4 63H 63L SV TH3,TH32,TH33 TH4 TH6 TH7 TH8 LEV-A, LEV-B,LEV-C DCL ACTM CB CY1,CY2 PUHZ-HRP100VHA NAME Terminal Block Motor for Compressor Fan Motor Solenoid Valve (Four-Way Valve) High Pressure Switch Low Pressure Switch Solenoid Valve (Bypass Valve) Thermistor Thermistor Thermistor Thermistor Thermistor Electronic Expansion Valve Reactor Active Filter Module M
PUHZ-HRP100YHA PUHZ-HRP125YHA [LEGEND] SYMBOL TB1 TB2 MC MF1, MF2 21S4 63H 63L SV TH3,TH32,TH33 TH4 TH6 TH7 LEV-A, LEV-B, LEV-C ACL1~ACL4 CB1, CB2 CK CY1, CY2 RS NAME Terminal Block Terminal Block Motor for Compressor Fan Motor Solenoid Valve (Four-Way Valve) High Pressure Switch Low Pressure Switch Solenoid Valve (Bypass Valve) Thermistor Thermistor Thermistor Thermistor Electronic Expansion Valve Reactor Main Smoothing
8 WIRING SPECIFICATIONS 8-1. FIELD ELECTRICAL WIRING (power wiring specifications) Outdoor unit model Outdoor unit power supply HRP100, 125Y 3N ~ (3phase), 50 Hz, 400 V HRP71, 100V ~/N (single), 50 Hz, 230 V *1 Wiring Circuit rating Wire No.
8-2. SEPARATE INDOOR UNIT/ OUTDOOR UNIT POWER SUPPLIES The following connection patterns are available. The outdoor unit power supply patterns vary on models. 1:1 System Outdoor unit power supply Earth leakage breaker Wiring circuit breaker or isolating switch Outdoor unit Indoor unit/outdoor unit connecting cords Remote controller Indoor unit Option Indoor unit power supply * The optional indoor power supply terminal kit is required.
8-3. INDOOR – OUTDOOR CONNECTING CABLE The cable shall not be lighter than design 60245 IEC or 60227 IEC. Wire No. % Size ($) Outdoor power supply Indoor unit-Outdoor unit Indoor unit-Outdoor unit earth Max. 45m Max. 50m Max. 80m 3 % 1.5 (polar) 3 % 2.5 (polar) 3 % 2.5 (polar) and S3 separated 1 % Min. 1.5 1 % Min. 2.5 1 % Min. 2.5 + The max. cable length may vary depending on the condition of installation, humidity or materials, etc. Indoor/Outdoor separate power supply Wire No.
8-4. M-NET WIRING METHOD (Points to notice) (1) Outside the unit, transmission wires should stay away from electric wires in order to prevent electromagnetic noise from making an influence on the signal communication. Place them at intervals of more than 5cm. Do not put them in the same conduit tube. (2) Terminal block (TB7) for transmission wires should never be connected to 220~240V power supply. If it is connected, electronic parts on M-NET P.C. board may burn out. (3) Use 2-core x 1.
L M-NET wiring (1) Use 2-core x 1.25mm2 shield wire for electric wires. M-NET terminal (Excluding the case connecting to system controller.) Ground block wire (2) Connect the wire to the M-NET terminal block. Connect one core of the transmission wire (non-polar) to A(M1) terminal and the other to B(M2). Peel the A B S shield wire, twist the shield part to a string and connect it to S terminal.
9 REFRIGERANT SYSTEM DIAGRAM PUHZ-HRP71VHA PUHZ-HRP100YHA PUHZ-HRP100VHA PUHZ-HRP125YHA Heat exchanger Refrigerant GAS pipe connection (5/8 inch) Thermistor TH6 (Outdoor 2-phase pipe) Solenoid valve (Four-way valve) Ball valve Strainer #50 Charge plug (High pressure) Charge plug (Low pressure) Muffler Thermistor TH3 (Outdoor pipe) High pressure switch 63H Distributor Low pressure switch 63L Thermistor TH32 (Outdoor pipe) Strainer #100 Strainer #100 Linear expansion valve B Refrigerant LIQUID
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 controller. If “CENTRALLY CONTROLLED” is displayed, the refrigerant recovering (pump down) cannot be completed normally.
10 TROUBLESHOOTING 10-1. TROUBLESHOOTING 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 trouble is reoccurring at service, are summarized in the table below. Check the contents below before investigating details.
"TEST RUN" and the currently selected operation mode are displayed altemately. Displays the remaining test run time. Operating procedures 1. Turn on the main power supply. While the room temperature display on the remote controller is “PLEASE WAIT”, the remote controller is disabled. Wait until “PLEASE WAIT” disappears before using remote controller. “PLEASE WAIT” appears for about 2 minutes after power supply is turned on. +1 2. Press TEST button twice. The TEST RUN appears on the screen. 3.
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 than 1.0M . Turn on the main power to the unit. TEST RUN TEST RUN Press the button twice continuously. (Start this operation from the status of remote controller display turned off.) TEST RUN TEMP ON/OFF A and current operation mode are displayed.
10-3. HOW TO PROCEED “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 temperature display, and the error code and unit number are displayed alternately as shown below. (If the outdoor unit is malfunctioning, the unit number will be “00”.
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 the one shown below. However, if you fail to reset the error history, the error content will be displayed again. Cancel self-diagnosis. Self-diagnosis can be cancelled by the following 2 methods. Press the CHECK button twice within 3 seconds. Press the ON/OFF button.
10-3-4. Malfunction-diagnosis method by wireless remote controller When a malfunction occurs to air conditioner, both indoor unit and outdoor unit will stop and operation lamp blinks to inform unusual stop. [Procedure] 1. Press the CHECK button twice. • "CHECK" lights, and refrigerant address "00" blinks. • Check that the remote controller's display has stopped before continuing. 2. Press the temperature buttons.
• Refer to the following tables for details on the check codes. [Output pattern A] Beeper sounds OPERATION INDICATOR lamp blink pattern Beep Beep Beep Beep Off Beep 1st 2 nd 3 rd nth On On On On Beep Beep 1st Off On 2 nd · · · Repeated On 0.5 sec. Approx. 2.5 sec. 0.5 sec. 0.5 sec. Self-check Approx. 2.5 sec. 0.5 sec. 0.5 sec. 0.5 sec. starts. (Start signal Number of blinks/beeps in pattern indicates the check Number of blinks/beeps in pattern indicates received) code in the following table.
10-4. SELF-DIAGNOSIS ACTION TABLE Error Code None Abnormal point and detection method — (Note 1) Refer to indoor unit section for code P and code E. Case No voltage is supplied to terminal block(TB1) of outdoor unit. a) Power supply breaker is turned off. b) Contact failure or disconnection of power supply terminal c) Open phase (L or N phase) Electric power is not charged to power supply terminal of outdoor power circuit board.
Error Code Abnormal point and detection method 2 connector open Abnormal if both 63H and 63L connector circuits are open for three minutes continuously after power supply. F9 (4119) EA (6844) Eb (6845) 63H: High-pressure switch 63L: Low-pressure switch Disconnection or contact failure of connector (63H,63L) on outdoor controller circuit board. Disconnection or contact failure of 63H, 63L 63H and 63L are working due to defective parts. Defective outdoor controller board.
Error Code Abnormal point and detection method High pressure (High-pressure switch 63H worked) Abnormal if high-pressure switch 63H worked ( + ) during compressor operation. + 4.15 MPa 63H: High-pressure switch U1 (1302) High discharging temperature (1) Abnormal if discharge temperature thermistor (TH4) exceeds 125 or 110 continuously for 5 minutes.
Error Code U4 (TH3:5105) (TH6:5107) (TH7:5106) (TH8:5110) (TH32:5105) (TH33:5105) Abnormal point and detection method Open/short of outdoor unit thermistors (TH3, TH32, TH33, TH6, TH7, and TH8) Abnormal if open or short is detected during compressor operation. Open detection of thermistors TH3, TH32, TH33 and TH6 is inoperative for 10 seconds to 10 minutes after compressor starting and 10 minutes after and during defrosting. Check which unit has abnormality in its thermistor by switching the mode of SW2.
Error Code U8 (4400) U9 (4220) Ud (1504) UF (4100) UH (5300) Abnormal point and detection method Case Judgment and action Outdoor fan motor The outdoor fan motor is considered to be abnormal if the rotational frequency of fan motor is abnormal when detected during operation. Fan motor rotational frequency is abnormal if; • 100 rpm or below detected continuously for 15 seconds at 20 or more outside air temperature. • 50 rpm or below or 1500 rpm or more detected continuously for 1 minute.
Error Code Abnormal point and detection method Judgment and action Stop valve of outdoor unit is Check stop valve. closed during operation. Disconnection or loose con~ Turn the power off and on again to check nection of connector (63L) on if F3 is displayed on restarting. outdoor controller board If F3 is displayed, follow the F3 processing direction. Disconnection or loose connection of 63L Defective outdoor controller board Leakage or shortage of refriger- Correct to proper amount of refrigerant.
Error Code E1 or E2 E3 or E5 E8 (6840) E9 (6841) EF (6607 or 6608) Abnormal point and detection method Remote controller control board Abnormal if data cannot be read normally from the nonvolatile memory of the remote controller control board. (Error code: E1) Abnormal if the clock function of remote controller cannot be operated normally.
Error Code Abnormal point and detection method Pipe temperature Detected as abnormal when the pipe temperature is not in the cooling range 3 minutes after compressor start and 6 minutes after the liquid or condenser/evaporator pipe is out of cooling range. Note 1) It takes at least 9 minutes to detect. Note 2) Abnormality P8 is not detected in drying mode.
Error Code Abnormal point and detection method Case Judgment and action A6 (6606) Communication error with communication processor Defective communication between unit processor and transmission processor Note) The address and attribute display at remote controller indicate the controller that detected abnormality. Data of transmission processor or unit processor is not transmitted normally because of accidental trouble such as noise or thunder surge.
From the previous page. Error Code Abnormal point and detection method Case Judgment and action 4. If displayed address or attribute is remote controller, indoor unit detects abnormality when indoor unit transmits signal to remote controller and there was no reply (ACK). Same as mentioned in “A7” of the previous During group operation with indoor unit of multi-refrigerant page.
Error Code Abnormal point and detection method M-NET NO RESPONSE Abnormal if a message was transmitted and there were reply (ACK) that message was received, but response command does not return. Transmitting side detects abnormality every 30 seconds, 6 times continuously. Note) The address and attribute displayed at remote controller indicate the controller that did not reply (ACK). A8 (6608) Case Transmitting condition is repeated fault because of noise and the like.
Phenomena 4. Even controlling by the wireless remote controller, no beep is heard and the unit does not start operating. Operation display is indicated on wireless remote controller. Factor The pair number settings of the wireless remote controller and indoor controller board are mismatched. 5. When operating by the wireless remote controller, beep sound is heard, however, unit does not start operating. No operation for 2 minutes at most after the power supply ON.
Symptoms: “PLEASE WAIT” is kept being displayed on the remote controller. Diagnosis flow Cause Inspection method and troubleshooting Check the display time of “PLEASE WAIT” after turning on the main power. 6 minutes or more How long is “PLEASE WAIT” kept being displayed on the remote controller? 2 minutes or less 2 to 6 minutes Are any error codes displayed on the remote controller? Check the LED display of the outdoor controller circuit board.
Symptoms: Nothing is displayed on the remote controller Diagnosis flow Cause LED display of the indoor controller board LED1 : LED2 : LED3 : Inspection method and troubleshooting 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. AC 198V to AC 264V? YES NO Check the voltage among L(L3) and N on the terminal block (TB1) of the outdoor power circuit board.
Symptoms: Nothing is displayed on the remote controller Diagnosis flow Cause LED display of the indoor controller board LED1 : LED2 : LED3 : or Inspection method and troubleshooting 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. NO AC 198V to AC 264V? YES Not lighting. Check the status of the indoor controller board LED3 display.
Symptoms: Nothing is displayed on the remote controller Diagnosis flow Cause LED display of the indoor controller board LED1 : LED2 : or LED3 : — Inspection method and troubleshooting Check the voltage of the terminal block (TB6) of the remote controller. DC 10V to DC 16V? YES • Defective remote controller • Replace the remote controller. NO Check the status of the LED2.
• Before repair Frequent calling from customers Phone Calls From Customers Unit does not operate at all. The operating display of remote controller does not come on. Unit cannot be restarted for a while after it’s stopped. Remote controller How to Respond Note Check if power is supplied to air conditioner. Nothing appears on the display unless power is supplied. Wait around 3 minutes to restart unit. The air conditioner is in a state of being protected by the microcomputer’s directive.
Phone Calls From Customers How to Respond The room cannot be cooled or heated sufficiently. Check the set temperature of remote controller. The outdoor unit cannot be operated if the set temperature is not appropriate. The outdoor unit operates in the following modes. COOL: When the set temperature is lower than the room temperature. HEAT: When the set temperature is higher than the room temperature. Note Check if filters are not dirty and clogged.
Phone Calls From Customers How to Respond Note Something is wrong with the blower….. Air blows out for a while after HEAT operation is stopped. However, this control is also This is not a malfunction. The blower is operating just for cooling down the applied to the models which heated-up air conditioner. This will be done within has no electric heater. 1 minute. This control is conducted only when the HEAT operation is stopped with the electric heater ON.
Phone Calls From Customers How to Respond A white mist is expelled from the indoor unit. This is not a malfunction. This may occur when the operation gets started in the room of high humidity. Water or moisture is expelled from the outdoor unit. Cooling; when pipes or piping joints are cooled, they get sweated and water drips down. Heating; water drips down from the heat exchanger. * Make use of optional parts “Drain Socket” and “Drain pan” if these water needs to be recovered and drained out for once.
10-6. HOW TO CHECK THE PARTS PUHZ-HRP71VHA PUHZ-HRP100VHA PUHZ-HRP100YHA PUHZ-HRP125YHA Check points Parts name Thermistor (TH3) Disconnect the connector then measure the resistance with a tester. (At the ambient temperature 10 ~30 ) Thermistor (TH4) Normal TH4 Thermistor (TH6) Abnormal 160k ~410k TH3 TH6 Thermistor (TH7) Open or short TH7 4.3k ~9.
Check method of DC fan motor (fan motor / outdoor controller circuit board) Notes · High voltage is applied to the connecter (CNF1, 2) for the fan motor. Give attention to the service. · Do not pull out the connector (CNF1, 2) for the motor with the power supply on. (It causes trouble of the outdoor controller circuit board and fan motor.) Self check Symptom : The outdoor fan cannot turn around. Fuse check Check the fuse (F5) on outdoor controller board.
10-7. HOW TO CHECK THE COMPONENTS 50 Low temperature thermistors • Thermistor (TH3) • Thermistor (TH6) • Thermistor (TH7) • Thermistor (TH32) • Thermistor (TH33) Thermistor R0 = 15k ± 3% B constant = 3480 ± 2% Resistance (k ) 40 1 1 Rt =15exp{3480( 273+t – 273 )} 0 10 20 25 15k 9.6k 6.3k 5.2k 30 40 30 20 4.3k 3.
Linear expansion valve (1) Operation summary of the linear expansion valve • Linear expansion valve opens/closes through stepping motor after receiving the pulse signal from the outdoor controller board. • Valve position can be changed in proportion to the number of pulse signal.
(4) How to attach and detach the coil of linear expansion valve Linear expansion valve is separable into the main body and the coil as shown in the diagram below. Stopper Main body Coil Lead wire Hold the lower part of the main body (shown as A) firmly so that the main body does not move and detach the coil by pulling it upward. Be sure to detach the coil holding main body firmly. Otherwise pipes can bend due to pressure.
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 operation switch (SWE) to ON and short-circuiting the connector (CN31) on outdoor controller board. LWhen following abnormalities occur, emergency operation will be available.
(5) Operation data during emergency operation During emergency operation, no communication is performed with the indoor unit, so the data items needed for operation are set to the following values: Operation mode Remarks Operation data COOL HEAT Intake temperature (TH1) 27 20.
10-9. TEST POINT DIAGRAM Outdoor controller circuit board PUHZ-HRP71VHA PUHZ-HRP100VHA TEST POINT PUHZ-HRP100YHA is high voltage.
Outdoor noise filter circuit board PUHZ-HRP71VHA PUHZ-HRP100VHA CN52C 52C driving signal (Connect to the outdoor controller circuit board (CN52C).
Outdoor noise filter circuit board PUHZ-HRP100YHA PUHZ-HRP125YHA LI1, LI2, LI3, NI POWER SUPPLY LI1-LI2/LI-LI3/LI3-LI1 : AC380/400/415V input LI1-NI/LI2-NI/LI3-NI : AC220/230/240V input (Connect to the terminal block (TB1)) GD1 Connect to the earth CNAC1, CNAC2 AC220/230/240V (Connect to the outdoor controller circuit board (CNAC)) GD3 Connect to the earth CNCT Primary current CNDC (Connect to the outdoor power circuit board (CN5)) (Connect to the outdoor controller circuit board (CNDC)) CNL Connect
Outdoor power circuit board PUHZ-HRP71VHA PUHZ-HRP100VHA CN2 Connect to the outdoor controller circuit board (CN2) 1-5:Transmitting signal to the outdoor controller circuit board (0~5V DC) 2-5:Zero cross signal (0~5V DC) 3,4:18V DC 6-5:16V DC 7-5:16V DC 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.
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 , L3 - P1 , L1 - N1 , L2 - N1 , L3 - N1 .
Outdoor converter circuit board PUHZ-HRP100YHA PUHZ-HRP125YHA CK-OU Connect to the CK capacitor L1-IN, N-IN L1-A1 Connect to the noise filter circuit board (LO1, No) Connect to the ACL1 CN7 Connect to the outdoor power circuit board (CN7) L1-A2, L2-A2, L3-A2 Connect to the ACL1, ACL2, ACL3 61 L1-OU, L2-OU, L3-OU Connect to the outdoor power circuit board (TB-L1, L2, L3)
Active filter module PUHZ-HRP71VHA PUHZ-HRP100VHA P Connect to the outdoor power circuit board(TABP2) L1, L2 Connect to the DCL(Reactor) N1 Non-connect Lower side Upper side + N2 Non-connect Connect to the outdoor power circuit board (TABP1) – Connect to the outdoor power circuit board(TABN1) Connect to the outdoor power circuit board(CNAF) 1 : GND 2-1 : 15V DC 3-1 : Control signal 4, 5 : Not used 6-1 : Control signal Connection and internal circuit diagram Io Connect to the outdoor power circuit
10-10. FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS (1) Function of switches Type of Switch No. switch Action by the switch operation Function 1 Forced defrost +1 2 Abnormal history clear Effective timing ON OFF Start Normal When compressor is working in heating operation.
Type of Switch No.
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 or on-off switch contactor setting to the CNDM connector which is optional contactor for demand input located on the outdoor controller board enables to control compressor operation frequency.
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 on outdoor controller board.
Indication Outdoor controller board LED1 (Green) LED2 (Red) Error Contents 3 blinking 1 blinking Abnormality of shell thermostat and discharging temperature (TH4) Abnormality of superheat due to low discharge temperature 2 blinking Abnormal high pressure (High pressure switch 63H worked.) Abnormal low pressure (Low pressure switch 63L worked.
[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-Control Service Tool”.
SW2 setting ON Explanation for display Display detail Pipe temperature / Liquid(TH3) – 40~90 – 40~90 (When the coil thermistor detects 0 or below, “–” and temperature are displayed by turns.) (Example) When -10 ; 0.5 secs. 0.5secs. 2 secs. 1 2 3 4 5 6 Unit 10 Discharge temperature (TH4) 3~217 3~217 (When the discharge thermistor detects 100 or more, hundreds digit, tens digit and ones digit are displayed by turns.) (Example) When 105 ; 0.5 secs. 0.5secs. 2 secs.
SW2 setting ON Display detail Explanation for display Unit Pipe temperature / Liquid(TH3) on error occurring – 40~90 – 40~90 (When the coil thermistor detects 0 or below, “–” and temperature are displayed by turns.) (Example) When –15 ; 0.5 secs. 0.5secs. 2 secs. 15 Compressor temperature (TH4) or discharge temperature (TH4) on error occurring 3~217 3~217 (When the temperature is 100 or more, the hundreds digit, tens digit and ones digit are displayed by turns.) (Example) When 130 ; 0.5 secs.
SW2 setting Explanation for display Display detail The number of connected indoor units ON 0~3 (The number of connected indoor units are displayed.) Unit Unit 1 2 3 4 5 6 Capacity setting display Displayed as an outdoor capacity code.
SW2 setting ON Explanation for display Display detail Indoor setting temperature 17~30 17~30 Outdoor pipe temperature / Cond./ Eva. (TH6) -39~88 -39~88 (When the temperature is 0 or less, “–” and temperature are displayed by turns.) Outdoor outside temperature (TH7) -39~88 -39~88 (When the temperature is 0 or less, “–” and temperature are displayed by turns.
SW2 setting ON Explanation for display Display detail 0~255 (When the capacity is 100% hundreds digit, tens digit and ones digit are displayed by turns.) (Example) When 100%; 0.5 secs. 0.5secs. 2 secs. 1 00 Capacity save 0~255 When air conditioner is connected to M-NET and capacity save mode is demanded, “0”~”100” is displayed. 1 2 3 4 5 6 Unit % When there is no setting of capacity save “100” is displayed.
SW2 setting Display detail Explanation for display LEV-A opening pulse on error occurring 0~480 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. 1 30 ON 1 2 3 4 5 6 ON Indoor room temperature (TH1) on error occurring 8~39 Unit Pulse 8~39 1 2 3 4 5 6 ON Indoor pipe temperature / Liquid (TH2) on error occurring -39~88 1 2 3 4 5 6 ON Indoor pipe temperature / Cond./ Eva.
SW2 setting Display detail Explanation for display Unit Discharge superheat on error occurring SHd 0~255 0~255 (When the temperature is 100°C or more, hundreds digit, tens digit and ones digit are displayed by turns.) (Example) When 150°C; 0.5 secs. 0.5secs. 2 secs. 1 50 0~130 (When the temperature is 100°C or more, hundreds digit, tens digit and ones digit are displayed by turns.) (Example) When 115°C; 0.5 secs. 0.5secs. 2 secs.
SW2 setting Explanation for display Display detail Controlling status of compressor operating frequency ON Unit The following code will be a help to know the operating status of unit. •The tens digit Display Compressor operating frequency control 1 Primary current control Secondary current control 2 •The ones digit (In this digit, the total number of 1 2 3 4 5 6 activated control is displayed.
11 FUNCTION SETTING 11-1. UNIT FUNCTION SETTING BY THE REMOTE CONTROLLER Each function can be set according to necessity using the remote controller. The setting of function for each unit can only be done by the remote controller. Select function available from the table 1. (1) Functions available when setting the unit number to 00 (Select 00 referring to setting the indoor unit number.) 1 The functions below are available only when the wired remote controller is used.
(2) Functions available when setting the unit number to 01-03 or AL (07 in case of wireless remote controller) • When setting functions for an indoor unit in an independent system, set the unit number to 01 referring to Set the indoor unit number of Operating Procedure.
11-1-1. Selecting functions using the wired remote controller First, try to familiarize yourself with the flow of the function selection procedure. In this section, an example of setting the room temperature detection position is given. For actual operations, refer to steps to . Setting number Refrigerant address Unit number Mode number Modes 01 to 14 can be activated by pressing buttons and simultaneously, and modes 15 to 28 by pressing buttons and .
[Operating Procedure] Check the setting items provided by function selection. If settings for a mode are changed by function selection, the functions of that mode will be changed accordingly. Check all the current settings according to steps to , fill in the "Check" column in Table 1, then change them as necessary. For initial settings, refer to the indoor unit's installation manual. Switch off the remote controller.
11-1-2. Selecting functions using the wireless remote controller (Type C) Functions can be selected with the wireless remote controller. Function selection using wireless remote controller is available only for refrigerant system with wireless function. Refrigerant address cannot be specified by the wireless remote controller. [Flow of function selection procedure] Flow of function selection procedure The flow of the function selection procedure is shown below.
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 Item 2 1.Change language Language setting to display ("CHANGE LANGUAGE") 2.
[Function selection flowchart] Setting language (English) Normal display (Display when the air conditioner is not running) Hold down the button and press the button for 2 seconds. Hold down the button and press the button for 2 seconds. Press the operation mode button. Press theTIMER MENU button. Press theTIMER ON/OFF button. Remote controller function selection mode Item 1 Change Language Item 2 English Dot display Germany Spanish TEMP.
12 MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER 12-1. HOW TO "MONITOR THE OPERATION DATA" • Turn on the [Monitoring the operation data] Example) Request code "004" Discharge temperature 69 Refrigerant address "00" (7) (3) (5) (1) (2) (6) (4) (1) Press the TEST A: Maintenance mode B: Refrigerant address C: Data display area D: Request code display area button for 3 seconds so that [ Maintenance mode] appears on the screen (at ).
12-2. REQUEST CODE LIST Request code * Certain indoor/outdoor combinations do not have the request code function; therefore, no request codes are displayed. Description Request content (Display range) Unit 0 Operation state Refer to 12-2-1. Detail Contents in Request Code.
Request code Description Request content (Display range) Unit 50 Indoor unit-Control state Refer to 12-2-1.Detail Contents in Request Code. – 51 Outdoor unit-Control state Refer to 12-2-1.Detail Contents in Request Code. – 52 Compressor-Frequency control state Refer to 12-2-1.Detail Contents in Request Code. – 53 Outdoor unit-Fan control state Refer to 12-2-1.Detail Contents in Request Code. – 54 Actuator output state Refer to 12-2-1.Detail Contents in Request Code.
Request code Description Request content (Display range) Unit 103 Error history 1 (latest) Displays error history. (" - - " is displayed if no history is present.) Code 104 Error history 2 (second to last) Displays error history. (" - - " is displayed if no history is present.) Code 105 Error history 3 (third to last) Displays error history. (" - - " is displayed if no history is present.
Request code Description Request content (Display range) Unit Remarks 153 154 155 Indoor-Fan operating time (After filter is reset) Indoor-Total operating time (Fan motor ON time) 0 – 9999 1 hour 0 – 9999 10 hours 156 0 – 255 Fan control data – For indoor fan phase control "00 **" "**" indicates fan control data. – For indoor fan pulsation control "00 **" "**" indicates fan control data.
12-2-1.
[Fan control state] (Request code :" 53 ") Data display 0 0 Fan step correction value by heatsink temperature overheat prevention control Fan step correction value by cool condensation temperature overheat prevention control Display - (minus) 0 1 2 Correction value –1 0 +1 +2 [Actuator output state] (Request code :"54") Data display 0 0 Actuator output state Actuator output state Actuator output state Actuator output state Display SV1 0 1 ON 2 3 ON 4 5 ON 6 7 ON 8 9 ON A b ON C d E F
[Contact demand capacity] (Request code "61") Data display 0 0 Setting content 0 Setting content Display Setting value 0 1 2 3 0% 50% 75% 100% Setting SW7-1 SW7-2 ON ON ON ON Silent mode input Spare 1 input [External input state] (Request code "62") Data display Input state 0 0 0 Input state Display Contact demand input 0 1 2 3 4 5 6 7 8 9 A b C d E F [Outdoor unit - Capacity setting display] (Request code : "70") Data display 9 10 11 14 20 25 28 40 50 Capacity 35 50 60 71 100 125 14
[Outdoor unit switch setting display (SW1 to SW10, except SW3)] Request codes: 73 to 82 0: Swich OFF 1: Swich ON SW1, SW2, SW6, SW7 Data display 1 2 3 4 5 6 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0
[Indoor unit – Model setting information] (Request code : 162) Data display 0 Display 0 See the table on the right.
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 for inverter models. Smooth Maintenance Function Discharge temperature 64 L Conventional inspection work unit L LOutdoor LIndoor unit L Measure the intake air temperature. Remove the service panel.
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).
13-2.
13-3. INITIAL SETTINGS FOR REFRIGERANT LEAKAGE DETECTION FUNCTION NRemote controller button position This air conditioner (Outdoor unit) can detect refrigerant leakage which may happen during a long period of use. In order to enable the leakage detection, the following settings are required to let the unit memorize the initial condition (initial refregerant amount).
3. How to start "Judgment of refrigerant leakage " mode. To know the current condition of refrigerant amount, same operation must be performed. Please repeat the same procedure ~ as when "Initial learning operation" for "Checking operation". Press . CLOCK button and select the [GAS LEAK JUDGE] Refrigerant leakage detection (initial teaching) Refrigerant leakage detection judgment GAS LEAK TEST START Press FILTER GAS LEAK JUDGE ( ) button to confirm.
14 DISASSEMBLY PROCEDURE PUHZ-HRP71VHA PUHZ-HRP100VHA PHOTOS & ILLUSTRATION OPERATING PROCEDURE 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 top panel and remove it. Figure 1 Top panel fixing screws Top panel Service panel Grille fixing screws Slide Fan grille Grille fixing screws Service panel fixing screws 2.
OPERATING PROCEDURE PHOTOS 4. Removing the thermistor (TH6) and thermistor (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 the electrical parts box. (4) Loosen the clamp for the lead wire in the rear of the electrical parts box. (5) Pull out the thermistor (TH6) and thermistor (TH7) from the sensor holder.
PHOTOS OPERATING PROCEDURE 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) Remove the 4-way valve coil by sliding the coil toward you. (5) Disconnect the connector 21S4 (green) on the controller circuit board in the electrical parts box.
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 valve solenoid coil fixing screw (M5 6). (5) Remove the bypass valve coil by sliding the coil upward. (6) Disconnect the connector SV2 (blue) on the controller circuit board in the electrical parts box.
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) and remove the back cover panel. (5) Remove the electrical parts box. (See photo 3.
PUHZ-HRP100YHA PUHZ-HRP125YHA PHOTOS & ILLUSTRATION OPERATING PROCEDURE 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 top panel and remove it. Figure 1 Top panel fixing screws Top panel Service panel Grille fixing screws Slide Fan grille Grille fixing screws 2. Removing the fan motor (MF1, MF2) (1) Remove the service panel.
PHOTOS & ILLUSTRATION OPERATING PROCEDURE 4. Disassembling the electrical parts box (1) Disconnect all the connectors on the controller circuit board. Photo 4 (2) Remove the 3 screws, screw , and , that fix the plate equipped with the outdoor controller circuit board, and the electrical parts box, screw from the front and the screw and from the bottom of the electrical parts box. (See photo 4 and 5.) (3) Slide the plate in the direction of the arrow A and remove it. (See photo 4.
PHOTOS OPERATING PROCEDURE Photo 9 5. Removing the thermistor (TH6) and thermistor (TH7) Electrical parts box (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 the electrical parts box. (4) Loosen the 2 wire clamps on top of the electrical parts box. (5) Pull out the thermistor (TH6) and thermistor (TH7) from the sensor holder.
OPERATING PROCEDURE PHOTOS 8. 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 solenoid coil fixing screw (M4 6). (4) Remove the 4-way valve coil by sliding the coil toward you. (5) Disconnect the connector 21S4 (green) on the controller circuit board in the electrical parts box.
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 Replace filter rear of the unit and remove the right side panel. (4) Remove the bypass valve solenoid coil fixing screw (M5 6). (5) Remove the bypass valve coil by sliding the coil upward.
OPERATING PROCEDURE PHOTOS 13. Removing the reactors (ACL1, ACL2, ACL3) Photo 16 (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 valve bed and screw from the bottom of the separator, and tilt the separator to the side of the fan motor slightly. (See photo 16.
OPERATING PROCEDURE PHOTOS 14. Removing the compressor (MC) Photo 19 (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 Valve bed Separator remove the front cover panel. (See photo 3.) (4) Remove 2 back cover panel fixing screws (5 10) and remove the back cover panel. (5) Remove the electrical parts box. (See photo 3.
