Mitsubishi PUHZ-RP60VHA Service Manual Page 134
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- TROUBLESHOOTING
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134
OPERATING PROCEDURE
PHOTOS & ILLUSTRATION
PUHZ-RP60,71VHA2(1)/VHA3
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
fixing screws
Service panel
Grille fixing screws
Fan grille
2. Removing the fan motor (MF1)
(1) Remove the service panel. (See figure 1.)
(2) Remove the top panel. (See figure 1.)
(3) Remove 5 fan grille fixing screws (5 ✕ 10) to detach the
fan grille. (See figure 1.)
(4) Remove a nut (for right handed screw of M6) to detach
the propeller. (See photo 1.)
(5) Disconnect the connector CNF1 on controller circuit
board in electrical parts box.
(6) Remove 4 fan motor fixing screws (5 ✕ 25) to detach the
fan motor. (See photo 2.)
Fan motor fixing screws
Photo 3
Electrical parts box
Controller circuit
board
(C.B.)
Electrical parts
box fixing screw
Terminal cover
Cover panel
(Front)
Cover panel fixing screws
Compressor (MC)
Photo 1
Fan
motor
(MF1)
Fan motor
fixing screws
Propeller
Front panel
Front panel fixing screws
Nut
Terminal block
(TB1)
Photo 2
Valve bed
Screw
Slide
3. Removing the electrical parts box
(1) Remove the service panel. (See figure 1.)
(2) Remove the top panel. (See figure 1.)
(3) Disconnect the indoor/outdoor connecting wire from
terminal block.
(4) Remove all the following connectors from controller circuit board;
fan motor, LEV, thermistor<Outdoor pipe>,
thermistor<Discharge>, thermistor<Outdoor 2-phase pipe>,
thermistor<Outdoor>, thermistor<Heatsink>,
high pressure switch, 4-way valve and bypass valve.
Then remove a screw (4 ✕ 8) from the valve bed to
remove the lead wire.
Pull out the disconnected wire from the electrical parts box.
<Diagram symbol in the connector housing>
• Fan motor (CNF1)
• LEV (LEV-A and LEV-B)
• Thermistor <Outdoor pipe> (TH3) (TH33)
• Thermistor <Discharge> (TH4)
• Thermistor <Outdoor 2-phase pipe, Outdoor> (TH6/7)
• Thermistor <Heatsink> (CN3)
• High pressure switch (63H)
• 4-way valve coil (21S4)
• Bypass valve coil (SV2)
(5) Remove the terminal cover and disconnect the compressor
lead wire.
(6) Remove an electrical parts box fixing screw (4 ✕ 10) and
detach the electrical parts box by pulling it upward. The
electrical parts box is fixed with 2 hooks on the left and 1
hook on the right.
OC374C--5.qxp 08.2.22 8:12 AM Page 134
- SERVICE MANUAL 1
- [Service Ref.] 2
- 1 TECHNICAL CHANGES 3
- REFERENCE MANUAL 4
- 3 SAFETY PRECAUTION 5
- Gravimeter 6
- [3] Service tools 6
- (1) which 7
- Dimension A 8
- Dimension B 8
- 4 FEATURES 9
- 5 SPECIFICATIONS 10
- 1PUHZ-RP125YHA21 12
- 1 / YHA3 12
- 1:135(298) / YHA3:130(287) 12
- (at 20°C) 13
- 6-3. NOISE CRITERION CURVES 14
- 7 OUTLINES AND DIMENSIONS 20
- Unit : mm 21
- Piping Knockout Hole Details 22
- Example of Notes 22
- Over 150mm 23
- Over 1000mm 23
- M-NET ADAPTER 25
- (w1 MODEL SELECT) 30
- (Contact Input)> 31
- 9 WIRING SPECIFICATIONS 32
- Set the SW8-3 to ON 33
- 1 2 (SW8) 33
- 9-4. M-NET WIRING METHOD 35
- 9-4-1. M-NET address setting 36
- 10 REFRIGERANT SYSTEM DIAGRAM 37
- 11 TROUBLESHOOTING 40
- OUTDOOR BOARD LED Display 41
- 1, L2, L3 and 41
- Error code (2 or 4 digits) 43
- (Alternating Display) 43
- [Procedure] 45
- Beep Beep 46
- 1,100VHA3) 51
- •V•W phase) to com 51
- 1, RP100VHA3) 51
- •V•W phase) to 51
- •V•W phase) to compres 52
- Continued to the next page 55
- From the previous page 56
- • Before repair 63
- 11-6. HOW TO CHECK THE PARTS 67
- PUHZ-RP35/50/60/71/100VHA2 67
- PUHZ-RP35/50/60/71/100VHA3 67
- DC DC250~330V 68
- CC DC15V 68
- Linear expansion valve 70
- (RP35-RP71) 70
- (RP100-RP140) 71
- <Composition> 72
- 11-8. EMERGENCY OPERATION 74
- 11-9. TEST POINT DIAGRAM 76
- PUHZ-RP35VHA21 PUHZ-RP35VHA3 79
- PUHZ-RP50VHA21 PUHZ-RP50VHA3 79
- PUHZ-RP60VHA2 80
- PUHZ-RP71VHA2 80
- PUHZ-RP71VHA21 PUHZ-RP71VHA3 81
- PUHZ-RP60VHA21 PUHZ-RP60VHA3 81
- PUHZ-RP100VHA2 82
- PUHZ-RP125VHA2 82
- PUHZ-RP140VHA2 82
- PUHZ-RP100VHA21 83
- PUHZ-RP125VHA21 83
- PUHZ-RP140VHA21 83
- PUHZ-RP100YHA2 84
- PUHZ-RP125YHA2 84
- PUHZ-RP140YHA2 84
- PUHZ-RP100YHA21 85
- PUHZ-RP125YHA21 85
- PUHZ-RP140YHA21 85
- Outdoor power circuit board 86
- ➔ Transmitting signal 87
- Active filter module 91
- (1) Function of switches 93
- Model select 94
- Power consumption 95
- (SW1 on) 95
- Detailed 96
- 1 second 98
- SW2 setting 100
- Display detail 100
- Explanation for display Unit 100
- •The ones digit 106
- 12 FUNCTION SETTING 107
- Temperature correction: Valid 108
- Mode number 109
- Setting number 109
- [Operating Procedure] 110
- TEST RUN 111
- Hold down the 113
- 13-2. REQUEST CODE LIST 115
- Refer to 118
- 14 EASY MAINTENANCE FUNCTION 124
- Display 125
- Check Points 126
- Stabilized 127
- " 0" 128
- 15 DISASSEMBLY PROCEDURE 129
- OPERATING PROCEDURE PHOTOS 130
- OPERATING PROCEDURE 134
- PHOTOS & ILLUSTRATION 134
- PUHZ-RP60,71VHA2(1)/VHA3 134
- (1)(TH33 : See Photo 9.) 135
- 1 PUHZ-RP60/71VHA3 135
- PUHZ-RP100, 125, 140VHA2(1) 139
- PUHZ-RP100VHA3 139
- 1 PUHZ-RP100VHA3 140
- PUHZ-RP100/125/140YHA2(1) 144
- PUHZ-RP100YHA3 144
- 1 PUHZ-RP100YHA3 146
- PUHZ-RP35VHA2 155
- PUHZ-RP50VHA2 155
- 17 RoHS PARTS LIST 162
- 1 PUHZ-RP35VHA3 174
- 1 PUHZ-RP50VHA3 174
- (1) VHA3 175
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