Mitsubishi PUHZ-W90VHA- User Manual

Page 2 - SAFETY PRECAUTION; Cautions for units utilizing refrigerant R410A; Charge refrigerant from liquid phase of gas cylinder.

2 SAFETY PRECAUTION 1 Cautions for units utilizing refrigerant R410A 1-2. CAUTIONS RELATED TO NEW REFRIGERANT 1-1. ALWAYS OBSERVE FOR SAFETY Before obtaining access to terminal, all supply ciucuits must be disconnected. [1] Cautions for service (1) Perform service after recovering the refrigerant le...

Page 3 - -3. CAUTIONS FOR REFRIGERANT PIPING WORK; Gravimeter

3 3 1-3. CAUTIONS FOR REFRIGERANT PIPING WORK Tools for R410A (The following table shows whether conventional tools can be used or not.) Gauge manifoldCharge hoseGas leak detectorRefrigerant recovery equipmentRefrigerant cylinderSafety charger Charge valve Vacuum pump BenderPipe cutterWelder and nit...

Page 4 - SPECIFICATIONS; Heating

4 SPECIFICATIONS 2 Power supply Phase 㱢 Voltage V n o i t i d n o c g n i t a r e p o l a n i m o N z H y c n e u q e r F Heating Capacity kW Heating(A2/W35) (A2/W35) 2 + ) b l u b - y r D ( e r u t a r e p m e t r i a e d i s t u O P O C 㷄 1 + ) b l u b - t e W ( e r u t a r e p m e t r i a e d i s...

Page 5 - DATA; MICROPHONE; BAND CENTER FREQUENCIES, Hz

5 DATA 3 1.5m 1m MICROPHONE UNIT GROUND 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATETHRESHOLD OFHEARING FORCONTINUOUSNOISE NC-60 NC-50 NC-40 NC-30 NC-20 NC-70 BAND CENTER FREQUENCIES, Hz PUHZ-W90VHA COOLING MODE HEATING 49 SPL(dB) 49 LINE OCT A VE BAND SOUND PRESSURE LEV...

Page 7 - OUTLINES AND DIMENSIONS; SERVICE SPACE

7 7 OUTLINES AND DIMENSIONS 4 PUHZ-W90VHA Handle for moving Side Air Intake 330 175 600 175 53 28 370 19 417 Installation Feet 2-U Shaped notched holes (Foundfation Bolt M10) Side Air Intake Rear Air Intake Air Discharge 2-12×36 oval holes (Foundation Bolt M10) 30 81 219 30 220 145 145 145 Drain hol...

Page 8 - WIRING DIAGRAM

8 WIRING DIAGRAM 5 PUHZ-W90VHA TB1 MCMF121S4 63H TH3TH4TH6TH7TH8 LEV-A, LEV-BDCL Terminal Block<Power Supply> TB2 Terminal Block<Controller> TB3 Terminal Block<Controller>Motor for CompressorFan Motor Solenoid Valve < Four-Way Valve > High Pressure Switch 63HS High Pressure S...

Page 9 - WIRING SPECIFICATIONS; FIELD ELECTRICAL WIRING (power wiring specifications); Outdoor unit power supply; SUHQHVKHDWKHGÀH[LEOHFDEOHV

9 WIRING SPECIFICATIONS 6 FIELD ELECTRICAL WIRING (power wiring specifications) Outdoor unit power supply ~/N (single), 50Hz, 230 V Outdoor unit Circuit Breaker capacity *1 25 A Wiring Wire No. × size (mm 2 ) Outdoor unit power supply, earth 3 × Min.4 Controller-Outdoor unit *2 8 × Min.0.5 (polar) C...

Page 10 - REFRIGERANT SYSTEM DIAGRAM

10 REFRIGERANT SYSTEM DIAGRAM 7 Distributor TH7 Strainer(#100) Strainer(#100) Receiver LEV-B TH6 TH32 Plate HEX Water IN Water OUT Strainer(#100) TH3 CHECK/V CHECK/V CHECK/V H/P SW TH4 TH8 P/B LEV-A COMP REV/V P-Sensor S/V Strainer(#100) Refrigerant flow in heating Refrigerant flow in cooling COMP H...

Page 11 - TROUBLESHOOTING; nections and incorrect polarity.

11 TROUBLESHOOTING 8 Unit conditions at service Error code Actions to be taken for service (summary) The trouble is reoccurring. Displayed Not displayed Judge what is wrong and take a corrective action accordingto “8-3. Self-diagnosis action table”. Conduct troubleshooting and ascertain the cause of...

Page 12 -

12 8-3. SELF-DIAGNOSIS ACTION TABLE <Abnormalities detected when the power is turned on> Error Code Abnormal point and detection method Case Judgment and action None — No voltage is supplied to terminal block(TB1) of outdoor unit. a) Power supply breaker is turned off. b) Contact failure or di...

Page 13 -

13 <Abnormalities detected while unit is operating> Error Code Abnormal point and detection method Judgment and action U1 High pressure (High-pressure switch 63H activated) Abnormal if high-pressure switch 63H is activated ( + ) during compressor opera- tion. + 4.15 MPa 63H: High-pressure swit...

Page 19 - Abnormal

19 8-4. HOW TO CHECK THE PARTS PUHZ-W90VHA 1 23 456 M Parts name Check points Disconnect the connector then measure the resistance using a tester. (At the ambient temperature of 10 ~30 ) Disconnect the connector then measure the resistance using a tester. (Winding temperature 20 ) TH3:Liquid pipe te...

Page 22 - Low temperature thermistor

22 Low temperature thermistor • Thermistor <Inlet water> (TH32) 0 15k 10 9.6k 20 6.3k 25 5.1k 30 4.2k 40 2.9k Thermistor R0 = 15k ± 2.5% B constant = 3450 ± 2% R t =15exp{3450( 273+t – 273 )} 1 0 10 20 30 40 50 -20 -10 0 10 20 30 40 50 Temperature( ) Resistance (k ) 1

Page 23 - ; Linear expansion valve; (1) Operation summary of the linear expansion valve; Output

23 <Output pulse signal and the valve operation> (2) Linear expansion valve operation Open Extra tightning (about 32 pulse) Pulse number 500 pulseOpening a valveall the way Close V alve position (capacity) 2SHQLQJDYDOYHĺĺĺĺĺĺĺĺ&ORVLQJDYDOYHĺĺĺĺĺĺĺĺ The output pulse shifts in above order. •...

Page 24 - (3) How to attach and detach the coil of linear expansion valve

24 Main body Lead wire Stopper Coil (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. A <How to detach the coil> Hold the lower part of the main body (shown as A)...

Page 26 - Outdoor noise filter circuit board

26 CNAC1, CNAC2220-240V ACConnect to the out-door controller cir-cuit board (CNAC). EIConnect to the earth. LI, NIVoltage of 220-240V AC is input. Connect to the terminal block(TB1). CN5Input currentConnect to the outdoor power circuit board (CN5). LO, NOVoltage of 220-240V AC is output. Connect to ...

Page 27 - Outdoor power circuit board; ACTM

27 Outdoor power circuit board TABP1Connect to ACTM + TABP2Connect to the ACTM CN4Connect to the outdoor controller circuit board (CN4) CN2Connect to the outdoor controller circuit board (CN2)1-5:Transmitting signal to the outdoor controller circuit board (0~5V DC) 2-5:Zero cross signal (0~5V DC)3,4...

Page 28 - Interface circuit board

28 Interface circuit board CNIF3Input signalConnect to theterminal block(TB2, TB3) CNIF1Connect to the outdoor controller circuit board CNIF2Connect to the outdoor controller circuit board CNIF4Output signalConnect to the terminal block(TB3)

Page 30 - -7. OUTDOOR UNIT OPERATION MONITOR FUNCTION; SW2 setting; Display detail; Operation indicator SW2 : Indicator change of self diagnosis; Display during error postponement; Display Inspection unit

30 8-7. OUTDOOR UNIT OPERATION MONITOR FUNCTION SW2 setting 1 ON 2 3 4 5 6 Display detail Explanation for display Unit Operation indicator SW2 : Indicator change of self diagnosis <Digital indicator LED3 working details> (Be sure that the 1 to 6 in the SW2 are set to OFF.) (1) Display when the...

Page 32 - Model

32 SW2 setting 1 ON 2 3 4 5 6 Display detail Explanation for display Unit Pipe temperature / Liquid(TH3) when error occured.– 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. 1 ON 2 3 4 5 6 1 ON 2 3...

Page 33 - Unit

33 SW2 setting Display detail Explanation for display Unit 1 ON 2 3 4 5 6 Plate HEX liquid pipe temperature(TH6)– 39~88 – 39~88(When the temperature is 0 or less, “–” and temperature are displayed by turns.) 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 Water inlet temperature (TH32)0~100 1 ON 2 3 4 5 6 Condensing ...

Page 35 - Hz

35 SW2 setting Display detail Explanation for display Unit Operation frequency when error occured.0~225 0~225(When it is 100Hz or more, hundreds digit, tens digit and ones digit are displayed by turns.)(Example) When 105Hz; 0.5 secs. 0.5secs. 2 secs. 1 ON 2 3 4 5 6 Hz Fan step when error occured.0~1...

Page 38 - DISASSEMBLY PROCEDURE; OPERATING PROCEDURE; Removing the service panel and top panel; downward to remove the service panel.; Figure 1; (5) Disconnect the connector CNF1 on controller circuit board; Photo 1; Removing the electrical box; (5) Remove the terminal cover and disconnect the compressor; Photo 3

38 DISASSEMBLY PROCEDURE 9 OPERATING PROCEDURE PUHZ-W90VHA 1. Removing the service panel and top panel (1) Remove 3 screws (5x10) and slide the hook on the right downward to remove the service panel. (2) Remove screws (3 for front, 3 for rear/5x10) of the top panel and remove it. Figure 1 Top panel ...

Page 39 - controller circuit board.; recover water in the plate heat exchanger.; Photo 4

39 39 OPERATING PROCEDURE PHOTOS&ILLUSTRATION 4. Removing the thermistor <Plate HEX Liquid> (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. (4) Loosen the clamps f...

Page 40 - on the controller circuit board.; Photo 8

40 OPERATING PROCEDURE PHOTOS&ILLUSTRATION 8. 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) ...

Page 41 - of the unit and remove the right side panel.

41 OPERATING PROCEDURE PHOTOS&ILLUSTRATION 11. 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 (5x10) in the rear of the unit and remo...

Page 42 - Note 1: Recover refrigerant without letting it out in the air.; Note 1: Recover refrigerant without letting it out in the air.; the right side panel.

42 OPERATING PROCEDURE PHOTOS&ILLUSTRATION 14. Removing the compressor (MC) (1) Remove the service panel. (See figure 1.) (2) Remove the top panel. (See figure 1.) (3) Remove 2 screws (5x10) and remove the front cover panel. (4) Remove 2 screws (5x10) and remove the back cover panel.(5) Remove t...

Page 43 - (5) Remove power circuit board from the electrical parts box.; Figure 2

43 OPERATING PROCEDURE PHOTOS&ILLUSTRATION 17. Removing the interface circuit board (I.F.) : Figure 2 (1) Remove 2 Interface board cover fixing screws (4x10). (2) Remove all lead wire connectors (CNIF1, CNIF2, CNIF3, CNIF4) on interface circuit board (I.F.). (3) Remove interface circuit board fr...

Mitsubishi PUHZ-W90VHA- User Manual

Table of Contents:

Summary

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