Mitsubishi PUHZ-RP60VHA Service Manual Page 76
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- Table of contents
- TROUBLESHOOTING
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76
11-9. TEST POINT DIAGRAM
Outdoor controller circuit board
PUHZ-RP35VHA2 PUHZ-RP50VHA2 PUHZ-RP60VHA2 PUHZ-RP71VHA2
PUHZ-RP100VHA2 PUHZ-RP125VHA2 PUHZ-RP140VHA2
PUHZ-RP100YHA2 PUHZ-RP125YHA2 PUHZ-RP140YHA2
Communication
power supply
ZD71 Voltage
developed across:
16-30V DC
–
+
CNS
(Indoor/outdoor unit
connecting wire)
CNAC
2 to 4: Power supply for
outdoor controller
circuit board
(220V-240V AC)
1 to 3: Power supply for
indoor and outdoor unit
connection wire
(220V-240V AC)
CN2
Connect to the outdoor
power circuit board (CN2)
1-5:
Power circuit board
➔
Transmitting signal to
the controller circuit board
(0-5V DC)
2-5: Zero cross signal
(0-5V DC)
3-4: Not used
(RP35-71V)
(RP100-140Y)
18V DC
(RP100-140V)
6-5: 16V DC
7-5: 16V DC
[5: – 1,2,6,7: + ]
21S4
Four-way
valve
63H
High pressure switch
SV2
RP60-71 : Bypass valve
RP100-140 : Replace
valve
CN4
Transmission
to outdoor
power circuit
board (CN4)
SW10
Model select
SW4
Test operation
SW6
Model select
SW5
Function switch
SW1
Forced defrost,
detect history
record reset,
refrigerant address
CNDM
1 to 2: Input of low-level sound priority mode
1 to 3: Input of external contact point
TH4
Thermistor
<Discharge>
TH3
Thermistor
<Outdoor pipe>
TH7
Thermistor<Outdoor>
TH6
Thermistor
<Outdoor 2-phase pipe>
CNDC
DC280V-380V
Connect from out-
door power circuit
board for RP·VHA2,
connect from noise
filter board for
RP·YHA2(CNDC)
–
+
}
VCC (TEST POINT 2)
(voltage between pins of C6B): DC 15V
VDC (TEST POINT 1)
(voltage between pins of C5E)
: DC250V-380V
VFG (TEST POINT 4)
(voltage between right
pins of PC5C and
PC5D, pin 3 and pin 4)
VSP (TEST POINT 3)
(voltage between pins of
C5A, C5B): DC 0V (when
stopped), DC 1– 6.5V
(when operated)
<CAUTION> TEST POINT1 is high voltage.
SW7
Demand control setting
SW9
CN51
External signal output
• Compressor operating signal
• Abnormal signal
LEV-A,-B
Linear expansion valve
SWP
Pump down
CN52C
(Connect to the outdoor noise fil-
ter circuit board (CN52C))
Only for RP35-RP71V
TH33
Thermistor
<Outdoor pipe>
OC374C--3.qxp 08.2.22 8:15 AM Page 76
- 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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