Mitsubishi PUHZ-RP60VHA Service Manual Page 71
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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<Output pulse signal and the valve operation>
(2) Linear expansion valve operation
A
B
C
Open
Extra tightning (about 32 pulse)
Pulse number
500 pulse
Opening a valve
all the way
Close
Valve position (capacity)
Opening a valve : 8 → 7 → 6 → 5 → 4 → 3 → 2 → 1 → 8
Closing a valve : 1 → 2 → 3 → 4 → 5 → 6 → 7 → 8 → 1
The output pulse shifts in above order.
· When linear expansion valve operation stops, all output phase
become OFF.
· When the switch is turned on, 700 pulse closing valve signal will
be sent till it goes to
A point in order to define the valve position.
(The pulse signal is being sent for about 20 seconds.)
When the valve moves smoothly, there is no sound or vibration
occurring from the linear expansion valve : however, when the
pulse number moves from B to A or when the valve is locked,
more sound can be heard.
No sound is heard when the pulse number moves from B to A in
case coil is burnt out or motor is locked by open-phase.
· Sound can be detected by placing the ear against the screw dri-
ver handle while putting the screw driver to the linear expansion
valve.
LEV
M
1
6
[4
[4
[3
[2
[1
1
Gray
Orange
Red
Yellow
Black
3
4
5
6
Connector LEV-A
DC12V
Outdoor controller board
Drive circuit
[3
[2
[1
3
2
5
4
LEV-B
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.
<Connection between the outdoor controller board and the linear expansion valve>
1
ON
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
ON
OFF
[1
Output
(Phase)
Output
[2
[3
[4
234
5678
OFF
OFF
ON
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
ON
ON
OFF
OFF
ON
(RP100-RP140)
OC374C--3.qxp 08.2.22 8:15 AM Page 71
- 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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