Mitsubishi PUHZ-SP100VHA - Page 63

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63
<CAUTION> TEST POINT 1 is high voltage.
PUHZ-SP100VHA.UK PUHZ-SP125VHA.UK PUHZ-SP140VHA.UK
PUHZ-SP100YHA.UK
PUHZ-SP125YHA.UK PUHZ-SP140YHA.UK
10-9. TEST POINT DIAGRAM
Outdoor controller circuit board
CNS
S1-S2: 230 V AC
CNAC
2 to 4: Power supply for
outdoor controller circuit
board (230 V AC)
1 to 3: Power supply for
indoor and outdoor unit
connection wire
(230 V AC)
21S4
4-way valve
CN4
Transmission to out-
door power circuit
board (CN4)
CN51
External signal output
• Compressor operating signal
• Abnormal signal
CN2
Connect to the outdoor
power circuit board (CN2)
1–5: Reception from
power circuit board
2–5: Zero cross signal
(0–5 V DC)
3,4: Not used
6–5: 16 V DC
7–5: 16 V DC
CN52C
(Connect to the noise
filter circuit board
(CN52C)) (VHA)
SV1/CH
Crankcase heater
(SP125/140 only)
SV2
Bypass valve
(SP125/140 only)
Communication power supply
D71 Voltage
24 V DC
CNF1, CNF2
Connect to the fan motor
1–4: 250–330 V DC
5–4: 15 V DC
6–4: 0–6.5 V DC
7–4: 15 V DC(When stopped)
7.5 V DC(When operated)
(0–15 V pulse)
CNDC
280 V DC
(1+, 3−)
(Outdoor power circuit
board for VHA)
(Noise filter circuit board
for YHA)
+ −
63H
High Pressure
Switch
SW4
Test operation
SW6
Model select
SW5
Function switch
SW1
Forced defrost,
detect history
record reset,
refrigerant address
TH3
Thermistor
<Liquid>
TH7/6
Thermistor
<Ambient/
2-phase pipe>
VFG
(Voltage between
right pins of PC5C
and PC5D, pin 3
and pin 4)
(Same as
(CNF1
7(+)–4(−))
VSP
(Voltage between pins of
C5A, C5B):
0 V DC (when stopped),
1–6.5 V (when operated)
LEV-A
Linear Expansion
Valve
SWP
Pump down
SW8
Pipe replace
Wiring replace
CNM
Connect to A control
service tool
CNMNT
Connect to
M-NET adapter (CN5)
CNVMNT
Connect to
M-NET adapter (CND)
TH32
Thermistor
<Comp. Surface>
CNDM
1 to 2: Input of low-level sound priority mode
1 to 3: Input of external contact point
SW7
Demand control setting
OCH566A