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Mitsubishi Electric PUHZ-P100VHA3.UK Service Manual
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Mitsubishi Electric PUHZ-P100VHA3.UK Service Manual

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SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
SERVICE MANUAL
R410A
Outdoor unit
[model names]
PUHZ-P100VHA2
PUHZ-P125VHA2
PUHZ-P140VHA2
PUHZ-P100VHA3
PUHZ-P125VHA3
PUHZ-P140VHA3
PUHZ-P100YHA
PUHZ-P125YHA
PUHZ-P140YHA
PUHZ-P100VHA2.UK
PUHZ-P100VHA3.UK
[Service Ref.]
PUHZ-P100VHA2.UK
PUHZ-P125VHA2.UK
PUHZ-P125VHA2
.UK
1
PUHZ-P140VHA2.UK
PUHZ-P140VHA2
.UK
1
PUHZ-P100VHA3.UK
PUHZ-P100VHA3R1.UK
PUHZ-P100VHA3R2.UK
PUHZ-P125VHA3.UK
PUHZ-P125VHA3R1.UK
PUHZ-P125VHA3R2.UK
PUHZ-P140VHA3.UK
PUHZ-P140VHA3R1.UK
PUHZ-P140VHA3R2.UK
PUHZ-P100YHA.UK
PUHZ-P125YHA.UK
PUHZ-P140YHA.UK
REVISED EDITION-D
Revision:
• PUHZ-P100/125/140
• Some descriptions have
• Please void OCH415
Note:
• RoHS compliant products
CONTENTS
1. TECHNICAL CHANGES ................................. 2
2. REFERENCE MANUAL .................................. 2
3. SAFETY PRECAUTION .................................. 3
4. FEATURES ...................................................... 6
5. SPECIFICATIONS ........................................... 7
6. DATA ............................................................... 9
7. OUTLINES AND DIMENSIONS .................... 12
8. WIRING DIAGRAM ....................................... 20
9. WIRING SPECIFICATIONS .......................... 23
10. REFRIGERANT SYSTEM DIAGRAM ............... 28
11. TROUBLESHOOTING ................................... 31
12. FUNCTION SETTING .................................... 85
13. EASY MAINTENANCE FUNCTION .............. 92
14. MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER ... 95
15. DISASSEMBLY PROCEDURE ................... 105
PARTS CATALOG (OCB415)
November 2009
No.OCH415
VHA3R2.UK and PUHZ-
P100/125/140YHA.UK
are added in REVISED
EDITION-D.
been modified.
REVISED EDITION-C.
have <G> mark on the
spec name plate.

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Summary of Contents for Mitsubishi Electric PUHZ-P100VHA3.UK

  • Page 1 PUHZ-P100VHA2.UK P100/125/140YHA.UK PUHZ-P125VHA2.UK PUHZ-P125VHA2 are added in REVISED PUHZ-P125VHA2 EDITION-D. PUHZ-P140VHA2 PUHZ-P140VHA2.UK • Some descriptions have PUHZ-P140VHA2 been modified. PUHZ-P100VHA3.UK PUHZ-P100VHA3 • Please void OCH415 PUHZ-P100VHA3R1.UK REVISED EDITION-C. PUHZ-P100VHA3R2.UK PUHZ-P125VHA3.UK PUHZ-P125VHA3 Note: PUHZ-P125VHA3R1.UK • RoHS compliant products PUHZ-P125VHA3R2.UK have <G> mark on the PUHZ-P140VHA3.UK...
  • Page 2 • Thermiostor <Discharge/TH4> has been changed to Thermistor <Comp. Surface/TH32>. • Electrical parts, Controller circuit board (C.B.), Power circuit board (P.B.), Noise filter circuit board (N.F.) and Active filter mod- ule (ACTM)(inclucling P.B.) have been changed. PUHZ-P100VHA3.UK PUHZ-P100VHA3R1.UK PUHZ-P125VHA3.UK PUHZ-P125VHA3R1.UK PUHZ-P140VHA3.UK...
  • Page 3 SAFETY PRECAUTION 3-1. ALWAYS OBSERVE FOR SAFETY Before obtaining access to terminal, all supply circuits must be disconnected. Preparation before the repair service. • Prepare the proper tools. • Prepare the proper protectors. • Provide adequate ventilation. • After stopping the operation of the air conditioner, turn off the power-supply beaker. •...
  • Page 4 [1] Cautions for service (1) Perform service after recovering the refrigerant left in unit completely. (2) Do not release refrigerant in the air. (3) After completing service, charge the cycle with specified amount of refrigerant. (4) When performing service, install a filter drier simultaneously. Be sure to use a filter drier for new refrigerant.
  • Page 5 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.
  • Page 6 FEATURES PUHZ-P125VHA2.UK PUHZ-P140VHA2.UK PUHZ-P100VHA2.UK PUHZ-P125VHA2 PUHZ-P100VHA3.UK PUHZ-P140VHA2 PUHZ-P125VHA3.UK PUHZ-P140VHA3.UK PUHZ-P125VHA3R1.UK PUHZ-P140VHA3R1.UK PUHZ-P100VHA3R1.UK PUHZ-P125VHA3R2.UK PUHZ-P100VHA3R2.UK PUHZ-P140VHA3R2.UK PUHZ-P100YHA.UK PUHZ-P125YHA.UK PUHZ-P140YHA.UK CHARGELESS SYSTEM PRE-CHARGED REFRIGERANT IS SUPPLIED FOR PIPING LENGTH AT SHIPMENT. (Max. 30m (PUHZ-P125/P140)) The refrigerant circuit with LEV (Linear Expansion Valve) and Accumulator always control the optimal refrigerant level regardless of the length (30m max.
  • Page 7 SPECIFICATIONS PUHZ-P100VHA2.UK PUHZ-P100VHA3.UK Service Ref. PUHZ-P100VHA3R1.UK PUHZ-P100VHA3R2.UK Cooling Heating Mode Power supply (phase, cycle, voltage) Single, 50Hz, 230V Running current 12.26 12.62 Max. current External finish Munsell 5Y 7/1 / Munsell 3Y 7.8/1.1 (VHA3R1 / R2) Linear Expansion Valve Refrigerant control...
  • Page 8 Service Ref. PUHZ-P100YHA.UK Cooling Heating Mode Power supply (phase, cycle, voltage) 3phase, 50Hz, 400V Running current 4.78 5.05 Max. current External finish Munsell 3Y 7.8/1.1 Refrigerant control Linear Expansion Valve Hermetic Compressor Model TNB220FLCMT Motor output Inverter Starter type Protection devices HP switch Discharge thermo —...
  • Page 9 DATA 6-1. REFILLING REFRIGERANT CHARGE (R410A : kg) Piping length (one way) Initial Service Ref. charged PUHZ-P100VHA2.UK PUHZ-P100VHA3.UK PUHZ-P100VHA3R1.UK PUHZ-P100VHA3R2.UK PUHZ-P100YHA.UK PUHZ-P125VHA2.UK PUHZ-P125VHA2 PUHZ-P125VHA3.UK PUHZ-P125VHA3R1.UK PUHZ-P125VHA3R2.UK PUHZ-P125YHA.UK PUHZ-P140VHA2.UK PUHZ-P140VHA2 PUHZ-P140VHA3.UK PUHZ-P140VHA3R1.UK PUHZ-P140VHA3R2.UK PUHZ-P140YHA.UK Longer pipe than 20 or 30m, additional charge is required.
  • Page 10 6-3. NOISE CRITERION CURVES PUHZ-P100VHA2.UK MICROPHONE PUHZ-P100VHA3.UK PUHZ-P100VHA3R1.UK SPL(dB) MODE LINE UNIT PUHZ-P100VHA3R2.UK COOLING PUHZ-P100YHA.UK HEATING 1.5m NC-70 GROUND NC-60 NC-50 NC-40 NC-30 APPROXIMATE THRESHOLD OF HEARING FOR NC-20 CONTINUOUS NOISE 1000 2000 4000 8000 BAND CENTER FREQUENCIES, Hz PUHZ-P125VHA2.UK PUHZ-P140VHA2.UK...
  • Page 11 6-4. STANDARD OPERATION DATA PLA-RP100BA PLA-RP125BA PLA-RP140BA(2) Representative matching Heating Cooling Heating Cooling Cooling Heating Mode 16,000 12,300 14,000 13,600 Capacity 9,400 11,200 4.98 Input 4.09 4.11 5.21 3.12 3.28 PLA-RP100BA PLA-RP125BA PLA-RP140BA(2) Indoor unit 1 , 50 1 , 50 1 , 50 Phase , Hz Volts...
  • Page 12 OUTLINES AND DIMENSIONS OUTDOOR UNIT Unit : mm(inch) PUHZ-P100VHA2.UK PUHZ-P100VHA3.UK...
  • Page 13 PUHZ-P125VHA2.UK Unit : mm(inch) PUHZ-P140VHA2.UK PUHZ-P125VHA2 PUHZ-P140VHA2 PUHZ-P125VHA3.UK PUHZ-P140VHA3.UK...
  • Page 14 OUTDOOR UNIT Unit : mm (inch) PUHZ-P100VHA3R1.UK...
  • Page 15 PUHZ-P125VHA3R1.UK Unit : mm (inch) PUHZ-P140VHA3R1.UK...
  • Page 16 PUHZ-P100VHA3R2.UK Unit : mm (inch)
  • Page 17 PUHZ-P125VHA3R2.UK Unit : mm (inch) PUHZ-P140VHA3R2.UK...
  • Page 18 PUHZ-P100YHA.UK Unit : mm (inch)
  • Page 19 PUHZ-P125YHA.UK Unit : mm (inch) PUHZ-P140YHA.UK...
  • Page 20 WIRING DIAGRAM PUHZ-P100VHA2.UK PUHZ-P125VHA2.UK PUHZ-P140VHA2.UK PUHZ-P125VHA2 PUHZ-P140VHA2 PUHZ-P100VHA3.UK PUHZ-P125VHA3.UK PUHZ-P140VHA3.UK PUHZ-P100VHA3R1.UK PUHZ-P125VHA3R1.UK PUHZ-P140VHA3R1.UK SYMBOL NAME SYMBOL NAME SYMBOL NAME Terminal Block<Power Supply, Indoor/Outdoor > P.B. Power Circuit Board Switch Motor Compressor TABU/V/W Connection Terminal<U/V/W-Phase> Switch MF1,MF2 Fan Motors TABS/T Connection Terminal<L/N- Phase>...
  • Page 21 PUHZ-P100VHA3R2.UK PUHZ-P125VHA3R2.UK PUHZ-P140VHA3R2.UK     The black square ( ) indicates a switch position.
  • Page 22 PUHZ-P100YHA.UK PUHZ-P125YHA.UK PUHZ-P140YHA.UK     The black square ( ) indicates a switch position.
  • Page 23 WIRING SPECIFICATIONS 9-1. FIELD ELECTRICAL WIRING (power wiring specifications) Outdoor unit model P100, 125V P140V P100,125,140Y Outdoor unit power supply ~/N (single), 50 Hz, ~/N (single), 50 Hz, 3N~ (3ph,4-wires), 230 V 230 V 50Hz, 400 V Outdoor unit input capacity 32 A 40 A 16 A...
  • Page 24 9-2. 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 <For models without heater> * The optional indoor power supply terminal kit is required. Outdoor unit power supply Earth leakage breaker Wiring circuit breaker or isolating switch Outdoor unit...
  • Page 25 9-3. INDOOR – OUTDOOR CONNECTING CABLE The cable shall not be lighter than design 60245 IEC or 60227 IEC. The cable length may vary depending on the condition of installation, humidity or materials, etc. Wire size Cross section Number Polarity L(m) *5 of cable of wires...
  • Page 26 9-4. M-NET WIRING METHOD (Points to note) (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 5 cm. Do not put them in the same conduit tube.
  • Page 27 M-NET wiring M-NET (1) Use 2-core × 1.25 mm² shield wire for electric wires. terminal Earth (Excluding the case connecting to system controller.) block wire (2) Connect the wire to the M-NET terminal block. Connect one core of the trans- mission wire (no-polarity) to A terminal and the other to B.
  • Page 28 REFRIGERANT SYSTEM DIAGRAM Unit : mm (inch) PUHZ-P100VHA2.UK Refrigerant flow in cooling PUHZ-P100VHA3.UK Refrigerant flow in heating PUHZ-P100VHA3R1.UK Service High pressure port protect switch (check) Stop valve Outdoor heat exchanger 4-way valve (#50) Thermistor Refrigerant GAS pipe Strainer (TH6) 15.88mm( 5/8)
  • Page 29 Unit : mm (inch) PUHZ-P100VHA3R2.UK Refrigerant flow in cooling PUHZ-P100YHA.UK Refrigerant flow in heating Service High pressure port protect switch (check) Stop valve Outdoor heat exchanger 4-way valve (#50) Thermistor Refrigerant GAS pipe Strainer (TH6) 15.88mm( 5/8) Thermistor Service (TH3) port Muffler (check)
  • Page 30 1. Refrigerant recovery (pump down) Perform the following procedures to recover the refrigerant when moving the indoor unit or the outdoor unit. 1 Turn on the power supply (circuit breaker). w When power is supplied, make sure that “CENTRALLY CONTROLLED” is not displayed on the remote controller. If “CENTRALLY CONTROLLED”...
  • Page 31 TROUBLESHOOTING 11-1. 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 trouble is reoccurring at service, are summarized in the table below.
  • Page 32 Operating procedures While the room temperature display on the remote "TEST RUN" and the currently selected controller is “PLEASE WAIT”, the remote controller is disabled. operation mode are displayed alternately. Wait until “PLEASE WAIT” disappears before using remote controller. 1. Turn on the main power supply. “PLEASE WAIT”...
  • Page 33 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 1.0 M". TEST RUN 1 Turn on the main power to the unit. TEST RUN 2 Press the button twice continuously.
  • Page 34 11-3. HOW TO PROCEED "SELF-DIAGNOSIS" 11-3-1. 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.
  • Page 35 When the error history is reset, the display will look like the one shown below. Press the button twice within 3 seconds. The self-diagnosis ON/OFF However, if you fail to reset the error history, the error content will be displayed again. address or refrigerant address will flash.
  • Page 36 11-3-4. Malfunction-diagnosis method by wireless remote controller <In case of trouble during operation> When a malfunction occurs to air conditioner, both indoor unit and outdoor unit will stop and operation lamp blinks to inform unusual stop. < Malfunction-diagnosis method at maintenance service> [Procedure] 1.
  • Page 37 • Refer to the following tables for details on the check codes. [Output pattern A] Beeper sounds Beep Beep Beep Beep Beep Beep Beep OPERATION · · · Repeated INDICATOR lamp blink pattern Approx. 2.5 sec. 0.5 sec. 0.5 sec. 0.5 sec.
  • Page 38 11-4. 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. Judgment and action Error Code Abnormal points and detection method Case 1 No voltage is supplied to terminal 1 Check following items.
  • Page 39 Error Code Abnormal points and detection method Case Judgment and action 1 Contact failure or miswiring of 1 Check disconnection or looseness or polar- Indoor/outdoor unit connector indoor/outdoor unit connecting ity of indoor/outdoor unit connecting wire of miswiring, excessive number of units (4 wire indoor and outdoor units.
  • Page 40 <Abnormalities detected while unit is operating> Error Code Abnormal points and detection method Judgment and action Case High pressure (High-pressure switch 1 Short cycle of indoor unit 1~6 Check indoor unit and repair defect. 63H operated) 2 Clogged filter of indoor unit Abnormal if high-pressure switch 63H oper- 3 Decreased airflow caused by ated ( w ) during compressor operation.
  • Page 41 Abnormal points and detection method Judgment and action Error Code Case Open/short circuit of discharge 1 Disconnection or contact 1 Check connection of connector (TH4) on the temperature thermistor (TH4 or TH32) outdoor controller circuit board. failure of connector (TH4 or Check breaking of the lead wire for Abnormal if open (3: or less) or short TH32) on the outdoor controller...
  • Page 42 Abnormal points and detection method Judgment and action Error Code Case Overvoltage or voltage shortage and 1 Decrease of power supply voltage 1 Check the facility of power supply. synchronous signal to main circuit 2 Disconnection of compressor 2 Correct the wiring (U·V·W phase) to compres- wiring sor.
  • Page 43 Abnormal points and detection method Judgment and action Error Code Case Compressor overcurrent interruption 1 Stop valve of outdoor unit is 1 Open stop valve. Abnormal if overcurrent DC bus or com- closed. pressor is detected after compressor starts 2 Decrease of power supply volt- 2 Check facility of power supply.
  • Page 44 Abnormal points and detection method Judgment and action Case Error Code Remote controller transmission error (E3)/ signal receiving error (E5) 1 2 remote controllers are set as 1 Set a remote controller to main, and the 1 Abnormal if remote controller could not “main.”...
  • Page 45 Abnormal points and detection method Judgment and action Error Code Case Pipe temperature 1 Slight temperature difference Check pipe <liquid or condenser/ <Cooling mode> between indoor room evaporator> temperature with room Detected as abnormal when the pipe temperature and pipe <liquid temperature display on remote temperature is not in the cooling range 3 or condenser/evaporator>...
  • Page 46 Error Code Abnormal points and detection method Case Judgment and action Communication error with communica- Turn off the power supply of outdoor unit, 1 Data of transmission proces- tion processor sor or unit processor is not indoor unit and FRESH MASTER or Defective communication between unit transmitted normally because LOSSNAY at the same time for 2 minutes or...
  • Page 47 From the previous page. Error Code Abnormal points and detection method Case Judgment and action 4. If displayed address or attribute is Same as mentioned in “A7” of the previous 1 During group operation with indoor unit of multi- refrigerant page remote controller, indoor unit detects system, if indoor unit transmit...
  • Page 48 Error Code Abnormal points and detection method Case Judgment and action M-NET NO RESPONSE 1 Transmitting condition repeats 1 Check transmission wave form or noise on fault because of noise and the Abnormal if a message was transmitted transmission wire. like.
  • Page 49 Phenomena Factor Countermeasure 4. Even controlling by the wireless 1 The pair number settings of the wireless remote 1 Check the pair number settings. remote controller, no beep is heard controller and indoor controller board are mismatched. and the unit does not start operat- ing.
  • Page 50 Symptoms: “PLEASE WAIT” is kept being displayed on the remote controller. Inspection method and Diagnosis flow Cause troubleshooting Check the display time of “PLEASE WAIT” after turning on the main power. 6 minutes 2 minutes or more or less How long is “PLEASE WAIT” •...
  • Page 51 LED display of the indoor controller board Symptoms: Nothing is displayed on the remote controller LED1 : LED2 : LED3 : Inspection method and Diagnosis flow Cause 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.
  • Page 52 LED display of the indoor controller board Symptoms: Nothing is displayed on the remote controller LED1 : LED2 : LED3 : Inspection method and Diagnosis flow Cause 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.
  • Page 53 LED display of the indoor controller board Symptoms: Nothing is displayed on the remote controller LED1 : LED2 : LED3 : — Inspection method and Diagnosis flow Cause troubleshooting Check the voltage of the terminal block (TB6) of the remote controller. DC 10V to DC 16V? •...
  • Page 54 • Before repair Frequent calling from customers Phone Calls From Customers How to Respond Note Unit does The operating display of remote Check if power is supplied to air conditioner. not operate controller does not come on. Nothing appears on the display unless power is at all.
  • Page 55 Phone Calls From Customers How to Respond Note 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.
  • Page 56 Phone Calls From Customers How to Respond Note Something Air blows out for a while after However, this control is also This is not a malfunction. is wrong HEAT operation is stopped. applied to the models which The blower is operating just for cooling down the with the heated-up air conditioner.
  • Page 57 Phone Calls From Customers How to Respond Note 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 Cooling;...
  • Page 58 11-6. HOW TO CHECK THE PARTS PUHZ-P100VHA2.UK PUHZ-P125VHA2.UK PUHZ-P140VHA2.UK PUHZ-P125VHA2 PUHZ-P140VHA2 PUHZ-P100VHA3.UK PUHZ-P125VHA3.UK PUHZ-P140VHA3.UK PUHZ-P100VHA3R1.UK PUHZ-P125VHA3R1.UK PUHZ-P140VHA3R1.UK PUHZ-P100VHA3R2.UK PUHZ-P125VHA3R2.UK PUHZ-P140VHA3R2.UK PUHZ-P100YHA.UK PUHZ-P125YHA.UK PUHZ-P140YHA.UK Check points Parts name Thermistor (TH3) Disconnect the connector then measure the resistance with a tester. <Outdoor pipe>...
  • Page 59 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. Pay 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...
  • Page 60 11-7. HOW TO CHECK THE COMPONENTS <Thermistor feature chart> Low temperature thermistors • Thermistor <Outdoor pipe> (TH3) • Thermistor <Outdoor 2-phase pipe> (TH6) • Thermistor <Outdoor> (TH7) Thermistor R0 = 15k' ± 3% B constant = 3480 ± 2% =15exp{3480( 273+t – 273 )} 15k' 4.3k' 9.6k'...
  • Page 61 Linear expansion valve (1) Operation summary of the linear expansion valve • Linear expansion valve open/close 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. <Connection between the outdoor controller board and the linear expansion valve>...
  • Page 62 (3) 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. Main body Stopper Coil Lead wire <How to detach the coil> 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.
  • Page 63 11-8. 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) on indoor controller board to ON and short-circuiting the connector (CN31) on outdoor controller board.
  • Page 64 (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 Operation data Remarks COOL HEAT Intake temperature (TH1) 20.5 Indoor liquid pipe temperature (TH2) Indoor 2-phase pipe temperature (TH5)
  • Page 65 11-9. TEST POINT DIAGRAM <CAUTION> CNF1 and CNF2 are high voltage. Outdoor controller circuit board PUHZ-P100VHA2.UK PUHZ-P125VHA2.UK PUHZ-P140VHA2.UK PUHZ-P125VHA2 PUHZ-P140VHA2 PUHZ-P100VHA3.UK PUHZ-P125VHA3.UK PUHZ-P140VHA3.UK PUHZ-P100VHA3R1.UK PUHZ-P125VHA3R1.UK PUHZ-P140VHA3R1.UK CN51 CNDM External signal output Forced defrost, 1 to 2: Input of low-level sound priority mode •...
  • Page 66 <CAUTION> TEST POINT 1 is high voltage. Outdoor controller circuit board PUHZ-P100VHA3R2.UK PUHZ-P125VHA3R2.UK PUHZ-P140VHA3R2.UK PUHZ-P100YHA.UK PUHZ-P125YHA.UK PUHZ-P140YHA.UK CN51 CNDM External signal output Forced defrost, 1 to 2: Input of low-level sound priority mode • Compressor operating signal detect history Demand control setting 1 to 3: Input of external contact point •...
  • Page 67 Outdoor noise filter circuit board PUHZ-P100VHA2.UK PUHZ-P125VHA2.UK PUHZ-P140VHA2.UK PUHZ-P125VHA2 PUHZ-P140VHA2 PUHZ-P100VHA3.UK PUHZ-P125VHA3.UK PUHZ-P125VHA3.UK PUHZ-P100VHA3R1.UK PUHZ-P125VHA3R1.UK PUHZ-P125VHA3R1.UK CN52C 52C driving signal (Connect to the outdoor controller circuit board (CN52C)) LO, NO Voltage of 220-240V AC is output (Connect to the outdoor...
  • Page 68 Outdoor noise filter circuit board PUHZ-P100YHA.UK PUHZ-P125YHA.UK PUHZ-P140YHA.UK 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)) Connect to the earth CNAC1, CNAC2 AC220/230/240V (Connect to the outdoor controller circuit board (CNAC)) Connect to the earth CNCT...
  • Page 69 If they are short-circuited, it means that they are broken. 1. Check of diode bridge (DS2, DS3) PUHZ-P140VHA2.UK TABP1-TABS, TABN1-TABS, TABP1-TABT,TABN1-TABT PUHZ-P125VHA2 2. Check of DIP-IPM P-U, P-V, P-W, N-U, N-V, N-W PUHZ-P140VHA2 PUHZ-P100VHA3.UK PUHZ-P125VHA3.UK PUHZ-P140VHA3.UK PUHZ-P100VHA3R1.UK PUHZ-P125VHA3R1.UK PUHZ-P140VHA3R1.UK CNAF CNDC...
  • Page 70 Outdoor power circuit board PUHZ-P100VHA3R2.UK PUHZ-P125VHA3R2.UK PUHZ-P140VHA3R2.UK Connect to the outdoor controller circuit board (CN2) 1-5: Transmitting signal to outdoor controller circuit board (0-5 V DC) Connect to the outdoor 2-5: Zero cross signal (0-5 V DC) controller circuit board (CN4) 3-4: 18 V DC 6-5: 16 V DC 7-5: 16 V DC...
  • Page 71 Outdoor power circuit board Brief Check of POWER MODULE W Usually, they are in a state of being short-circuited if they are broken. PUHZ-P100YHA.UK Measure the resistance in the following points (connectors, etc.). PUHZ-P125YHA.UK If they are short-circuited, it means that they are broken. 1.
  • Page 72 Active filter module PUHZ-P100VHA2.UK PUHZ-P100VHA3.UK PUHZ-P100VHA3R1.UK PUHZ-P125VHA2 PUHZ-P125VHA3.UK PUHZ-P125VHA3R1.UK PUHZ-P140VHA2 PUHZ-P140VHA3.UK PUHZ-P140VHA3R1.UK Connect to the out- door power circuit board (TABP2) L1, L2 Connect to the DCL (Reactor) Non-connect Upper Lower side side Non-connect Connect to the outdoor power circuit board...
  • Page 73 11-10. FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS (1) Function of switches Type Action by the switch operation Switch Function Effective timing switch When compressor is working Compulsory defrosting 1 Start Normal in heating operation. Abnormal history clear Clear Normal off or operating 1 2 3 4 5 6 1 2 3 4 5 6...
  • Page 74 (2) Function of connectors and switches Connector Action by open/short operation Types Function Effective timing Switch Short Open Connector CN31 Start Emergency operation When power supply ON Normal MODEL SW5-6 MODEL SW5-6 SW6-1 100VHA2 100VHA3R2 SW6-2 100VHA3(R1) 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6...
  • Page 75 <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 abnor- mality can be indicated in details by connecting an optional part ‘A-Control Service Tool (PAC-SK52ST)’ to connector CNM on outdoor controller board.
  • Page 76 Indication Error Error Outdoor controller board Detailed Contents Inspection method code reference LED1 (Green) LED2 (Red) page 3 blinking 1 blinking Check if stop valves are open. P.40 Abnormality of shell thermostat Check if connectors (TH4, LEV-A) on outdoor controller board are not and discharging temperature (TH4) disconnected.
  • Page 77 <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 control- ling DIP SW2 on ‘A-Control Service Tool’.
  • Page 78 SW2 setting Display detail Explanation for display Unit 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:; 2 3 4 5 6 0.5 secs. 0.5secs. 2 secs.
  • Page 79 SW2 setting Display detail Explanation for display Unit Pipe temperature/Liquid(TH3) on error – 40~90 occurring (When the coil thermistor detects 0: or below, “–” – 40~90 and temperature are displayed by turns.) (Example) When –15:; 0.5 secs. 0.5secs. 2 secs. 2 3 4 5 6 Compressor temperature (TH32) or 3~217...
  • Page 80 SW2 setting Display detail Explanation for display Unit The number of connected indoor units (The number of connected indoor units are dis- played.) Unit 2 3 4 5 6 Capacity setting display Displayed as an outdoor capacity code. Capacity Code Code P100 display...
  • Page 81 SW2 setting Display detail Explanation for display Unit Indoor setting temperature 17~30 17~30 2 3 4 5 6 -39~88 Outdoor pipe temperature/2-phase (TH6) (When the temperature is 0: or less, “–” and -39~88 temperature are displayed by turns.) 2 3 4 5 6 -39~88 Outdoor outside temperature (TH7) (When the temperature is 0: or less, “–”...
  • Page 82 SW2 setting Display detail Explanation for display Unit 0~100 Capacity save (When the capacity is 100% hundreds digit, tens digit 0~100 and ones digit are displayed by turns.) When air conditioner is connected to (Example) When 100%; M-NET and capacity save mode is 0.5 secs.
  • Page 83 SW2 setting Display detail Explanation for display Unit 0~480 LEV-A opening pulse on error occurring (When it is 100 pulse or more, hundreds digit, tens 0~480 digit and ones digit are displayed by turns.) (Example) When 130 pulse; Pulse 0.5 secs. 0.5secs.
  • Page 84 Explanation for display Unit SW2 setting Display detail 0~255 Discharge super heat on error occurring (When the temperature is 100°C or more, hundreds digit, tens digit and ones digit are displayed by 0~255 turns.) Cooling = TH4-TH6 VHA2 (Example) When 150°C; 0.5 secs.
  • Page 85 FUNCTION SETTING 12-1. UNIT FUNCTION SETTING BY THE REMOTE CONTROLLER Each function can be set as necessary 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. <Table 1>...
  • Page 86 (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 4 setting the indoor unit number of Operating Procedure.
  • Page 87 12-1-1. 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 Setting number Refrigerant address Unit number...
  • Page 88 [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 , fill in the "Check" column in Table 1, and then change them as necessary. For factory settings, refer to the indoor unit's installation manual. Switch off the remote controller.
  • Page 89 12-1-2. 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 refriger- ant system with wireless function. Refrigerant address cannot be specified by the wireless remote controller. [Flow of function selection procedure] The flow of the function selection procedure is shown below.
  • Page 90 12-2. 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 Item 3 (Setting content) 1.Change Language Language setting to display •...
  • Page 91 [Function selection flowchart] Normal display (Display when the air conditioner is not running) Setting language (English) 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.
  • Page 92 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 models. Smooth Mainte- Discharge temperature 64 Conventional inspection work...
  • Page 93 Data measurement When the operation is stabilized, measure operation data as explained below. (4) Press the [TEMP] buttons ( ) to select the desired refrigerant address. [Screen (5) Select the type of data to be displayed. After selecting, go to step (6). Compressor information button MENU...
  • Page 94 13-2.GUIDE FOR OPERATION CONDITION Check Points Inspection item Result Breaker Good Retightened Enter the temperature differences between into Terminal block Outdoor Unit Good Retightened the graph given below. Indoor Unit Good Retightened Operation state is determined according to the plotted areas on (Insulation resistance) the graph.
  • Page 95 14 MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER 14-1. HOW TO "MONITOR THE OPERATION DATA" • Turn on the [Monitoring the operation data] Example) Request code "004" Discharge temperature 69 Refrigerant address "00" B: Refrigerant address C: Data display area D: Request code display area (1) Press the button for 3 seconds so that [ Maintenance mode] appears on the screen (at...
  • Page 96 14-2. REQUEST CODE LIST * Certain indoor/outdoor combinations do not have the request code function; therefore, no request codes are displayed. Description Request content Unit Remarks (Display range) Operation state Refer to 14-2-1. Detail Contents in Request Code. – Compressor-Operating current (rms) 0 –...
  • Page 97 Description Request content Unit Remarks (Display range) Indoor unit-Control state – Refer to 14-2-1.Detail Contents in Request Code. Outdoor unit-Control state – Refer to 14-2-1.Detail Contents in Request Code. Compressor-Frequency control state Refer to 14-2-1.Detail Contents in Request Code. – Outdoor unit-Fan control state –...
  • Page 98 Description Request content Unit Remarks (Display range) Error history 1 (latest) Displays error history. (" - - " is displayed if no history is present.) Code Error history 2 (second to last) Displays error history. (" - - " is displayed if no history is present.) Code Error history 3 (third to last) Displays error history.
  • Page 99 Description Request content Unit Remarks (Display range) Indoor-Fan operating time 0 – 9999 1 hour (After filter is reset) Indoor-Total operating time 0 – 9999 10 hours (Fan motor ON time) Indoor fan output value (Sj value) 0 – 255 Fan control data –...
  • Page 100 14-2-1. Detail Contents in Request Code Example) Request code "004" Discharge temperature 69 Refrigerant address "00" B: Refrigerant address C: Data display area D: Request code display area [Operation state] (Request code :"0") Relay output state Power currently Data display Display Compressor Four-way valve Solenoid valve...
  • Page 101 [Fan control state] (Request code :" 53 ") Data display Fan step correction value by heatsink temperature overheat prevention control Fan step correction value by cool condensation temperature overheat prevention control Display Correction value - (minus) – 1 [Actuator output state] (Request code :"54") Data display Actuator output state Actuator output state...
  • Page 102 [Contact demand capacity] (Request code :"61") Setting content Data display Setting Display Setting value Setting content SW7-1 SW7-2 100% [External input state] (Request code :"62") Input state : Input present Data display Contact demand Silent mode Spare 1 Spare 2 Display Input state input...
  • Page 103 [Outdoor unit switch setting display (SW1 to SW10, except SW3)] Request codes: 73 to 82 0: Switch OFF 1: Switch ON 0: Switch OFF 1: Switch ON SW1, SW2, SW6, SW7 Data display Data display 00 00 00 00 00 01 00 01 00 02 00 02...
  • Page 104 [Indoor unit – Model setting information] (Request code :"162") Data display Display Model setting state Display Model setting state PSA-RP•GA, PSH-PGAH PKA-RP•FAL(2), PKH-P•FALH See the table on the right. PEAD-RP•EA(2)/GA, PEHD-P•EAH PCA-RP•GA(2), PCH-P•GAH, PLA-RP•BA, PLA-RP71/100/125BA2 SEZ-KA•VA SLZ-KA•VA(L) PCA-RP•HA PCA-RP•KA PKA-RP•GAL, PKH-P•GALH PLA-RP•...
  • Page 105 DISASSEMBLY PROCEDURE PUHZ-P100VHA2.UK PUHZ-P100VHA3.UK PUHZ-P100VHA3R1.UK PUHZ-P100VHA3R2.UK PUHZ-P100YHA.UK OPERATING PROCEDURE PHOTOS & ILLUSTRATION Top panel fixing screws 1. Removing the service panel and top panel Figure 1 Top panel (1) Remove 3 service panel fixing screws (5 × 10) and slide the hook on the right downward to remove the service panel.
  • Page 106 From the previous page. OPERATING PROCEDURE PHOTOS Photo 4 (PUHZ-P100Y) Electrical parts box fixing screws Terminal block (TB1) Terminal block (TB2) Photo 5 Thermistor 4. Removing the thermistor <Outdoor 2-phase pipe> (TH6) <Outdoor 2-phase pipe> (TH6) (1) Remove the service panel. (See Figure 1) (2) Remove the top panel.
  • Page 107 PHOTOS OPERATING PROCEDURE Photo 8 7. Removing the 4-way valve (21S4), LEV coil (LEV(A)) 4-way valve (1) Remove the service panel. (See Figure 1) LEV coil (LEV A) fixing screw (2) Remove the top panel. (See Figure 1) (3) Remove the electrical parts box. (Refer to No.3) [Removing the 4-way valve] (4) Remove the 4-way valve fixing screw (M4 ×...
  • Page 108 OPERATING PROCEDURE PHOTOS 10. Removing the high pressure switch (63H) Photo 10 (1) Remove the service panel. (See Figure 1) Lead wire of (2) Remove the top panel. (See Figure 1) high pressure switch (3) Remove the electrical parts box. (Refer to No.3) (4) Remove 3 right side panel fixing screws (5 ×...
  • Page 109 OPERATING PROCEDURE PHOTOS 12. Removing the compressor (MC) Photo 12 Electrical parts box (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.
  • Page 110 PUHZ-P125VHA2.UK PUHZ-P140VHA2.UK PUHZ-P125VHA2 PUHZ-P140VHA2 PUHZ-P125VHA3.UK PUHZ-P140VHA3.UK PUHZ-P125VHA3R1.UK PUHZ-P140VHA3R1.UK PUHZ-P125VHA3R2.UK PUHZ-P140VHA3R2.UK PUHZ-P125YHA.UK PUHZ-P140YHA.UK OPERATING PROCEDURE PHOTOS & ILLUSTRATION 1. Removing the service panel and top panel Top panel fixing screws Top panel Figure 1 (1) Remove 3 service panel fixing screws (5 × 10) and slide the hook on the right downward to remove the service Service panel panel.
  • Page 111 From the previous page. OPERATING PROCEDURE PHOTOS Photo 4 (PUHZ-P125,140Y) Electrical parts box fixing screws Terminal block (TB1) Terminal block (TB2) 4. Removing the thermistor <Outdoor 2-phase pipe> (TH6) Thermistor (1) Remove the service panel. (See Figure 1) <Outdoor 2-phase pipe> (TH6) Photo 5 (2) Remove the top panel.
  • Page 112 OPERATING PROCEDURE PHOTOS Photo 8 7. Removing the 4-way valve coil (21S4), and LEV coil (LEV(A)) (1) Remove the service panel. (See Figure 1) LEV coil (LEV A) (2) Remove the top panel. (See Figure 1) [Removing the 4-way valve coil] Lead wire of high Thermistor (3) Remove 4-way valve solenoid coil fixing screw...
  • Page 113 OPERATING PROCEDURE PHOTOS 10. Removing bypass valve coil (SV) and bypass valve Photo 9 (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.
  • Page 114 HEAD OFFICE : TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN CCopyright 2007 MITSUBISHI ELECTRIC ENGINEERING CO., LTD. Distributed in Nov. 2009 No.OCH415 REVISED EDITION-D PDF 6 Distributed in Jul. 2009 No.OCH415 REVISED EDITION-C PDF 6 Distributed in Mar.

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