34
9-6. TEST POINT DIAGRAM
Outdoor controller circuit board
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CNS
S1–S2: 230 V AC
CNAC
2
–
4
: Power supply
for outdoor controller
circuit board (230 V AC)
1
–
3
:
Power supply for
interface unit/Flow
temp. controller-
outdoor unit connec-
tion wire (230 V AC)
CN2
Connect to the out-
door power circuit
board (CN2).
1
–
5
:
Power circuit board
Transmitting signal
to the controller circuit
board
(0–5 V DC)
2
–
5
: Zero cross signal
(0–5 V DC)
3
–
4
: 18 V DC
6
–
5
: 16 V DC
7
–
5
: 16 V DC
21S4
4-way valve
63H
High pressure switch
SV2
Bypass valve
CN4
Transmission
to outdoor
power circuit
board (CN4)
SW6
Model select
SW1
Forced defrost,
detect history
record reset
TH4
Thermistor
<Discharge>
TH3
Thermistor
<Liquid>
TH7
<Ambient>
TH6
Thermistor
<Plate Hex liquid>
CNDC
280–380 V DC
Connect from out-
door power circuit
board.
–
+
}
V
CC
(TEST POINT
2
)
(voltage between pins of C6B): 15 V DC
V
DC
(TEST POINT
1
)
(voltage between pins of C5E)
: 280–330 V DC
V
FG
(voltage between right
pins of PC5D, pin 3
and pin 4)
V
SP
(voltage between pins
of C5B): 0 V DC (when
stopped), 1–6.5 V DC
(when operated)
<CAUTION> TEST POINT
1
is high voltage.
SW10
Model select
LEV-A,-B
Linear expansion valve
CN52C
Connect to the outdoor noise
filter circuit board (CN52C)
TH32
Thermistor
<Inlet water>
SW8
Function switch
SW2
Operation monitor
function
[
5
: –
1
,
2
,
6
,
7
: + ]
SW5
Function switch
Model select
–
+
Communication
power supply
D71 Voltage
24 V DC
TH33
Thermistor
<Comp. surface>
CNDM
1
–
2
:Input of low level
sound priority mode
SV1
Drain hose
heater output
63HS
High pressure sensor
SW7
Function switch
OCH465D
