61
OCH670
9-9. TEST POINT DIAGRAM
Outdoor controller circuit board
PUHZ-P100VKA.TH(-ET/-ER) PUHZ-P100YKA.TH(-ET/-ER)
PUHZ-P125VKA.TH(-ET/-ER) PUHZ-P125YKA.TH(-ET/-ER)
PUHZ-P140VKA.TH(-ET/-ER) PUHZ-P140YKA.TH(-ET/-ER)
TH3
Thermistor
<Liquid>
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)
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
: 18 V DC
6
-
5
: 16 V DC
7
-
5
: 16 V DC
SW1
Manual 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
SW7
Demand control setting
63H
High pressure switch
SW4
Test operation
SW6
Model select
SW5
Function switch
TH4
Thermistor
<Discharge>
TH7/6
Thermistor
<Ambient/2-phase pipe>
V
FG
(Voltage between right
pins of PC5C and
PC5D, pin 3 and pin 4)
(Same as (CNF1
7
(+)-
4
(-))
V
SP
(Voltage between pins of C5A, C5B):
0 V DC (when stopped),
1– 6.5 V DC (when operated)
LEV-B
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)
TH33
Thermistor
<Comp. surface>
Communication power supply
D71 Voltage
24 V DC
CNF1
Connect to the fan motor
1
-
4
: 250-380 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 V-15 V pulse)
CNDC
250-380 V DC
(
1
+,
3
-)
(Outdoor power circuit
board for SP42/48V)
(Noise filter circuit board
for SP36/42/48Y)
+ -
LEV-A
Linear expansion valve
