48
11-6. TEST POINT DIAGRAM
Outdoor controller circuit board
PUHZ-SW75VHA(-BS).UK
PUHZ-SW75VHAR3(-BS).UK
PUHZ-SW100VHA(-BS).UK
PUHZ-SW100VHAR3(-BS).UK PUHZ-SW120VHA(-BS).UK
PUHZ-SW120VHAR3(-BS).UK
PUHZ-SW100YHA(-BS).UK PUHZ-SW120YHA(-BS).UK
PUHZ-SW100YHAR1(-BS).UK
PUHZ-SW100YHAR3(-BS).UK PUHZ-SW120YHAR1(-BS).UK
PUHZ-SW120YHAR3(-BS).UK
–
+
}
SW4
Test operation
SW6
Model select
SW5
Function switch,
Model select
SW1
Manual defrost, detect
history record reset,
refrigerant address
CNDM
1
–
2
: Input of low-level sound priority mode
1
–
3
: Input of external contact point
TH4
Thermistor <Discharge>
TH3
Thermistor
<Liquid>
TH6
Thermistor
<2-phase pipe>
TH7
Thermistor<Ambient>
V
DC
(TEST POINT
1
)
(voltage between pins of C5E)
: 250–380 V DC
V
FG
(TEST POINT
4
)
(voltage between right
pins of PC5C and PC5D,
pin 3 and pin 4)
V
SP
(TEST POINT
3
)
(voltage between pins of
C5A, C5B): 0 V DC (when
stopped), 1–6.5 V DC
(when operated)
SW7
Demand control setting
SW9
Function switch
CN51
External signal output
• Compressor operating signal
• Abnormal signal
LEV-A,-B
Linear expansion valve
SWP
Pump down
CN52C
(Connect to the outdoor noise
filter circuit board (SW75V)/
the outdoor power circuit
board (SW100/120V))
Only for SW·VHA
CNS
(Indoor/outdoor unit
connecting wire)
CNAC
2
–
4
: Power supply for
outdoor controller circuit
board (230 V AC)
1
–
3
: Power supply for
indoor and outdoor unit
connection wire (230 V
AC)
CN2
Connect to the outdoor
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
(0-5V DC)
3
–
4
: Not used
(SW75V,100/120Y)
18 V DC (SW100/120V)
6
–
5
: 16 V DC
7
–
5
: 16 V DC
[
5
: –
1
,
2
,
6
,
7
: + ]
21S4
4-way valve
63H
High pressure switch
CN4
Transmission to out-
door power circuit
board (CN4)
CNDC
280–380 V DC Connect
from outdoor power circuit
board for VHA, connect
from noise filter board for
YHA
(CNDC)
V
CC
(TEST POINT
2
)
(voltage between pins of
C6B): 15 V DC
63L
Low pressure switch
(SW100/120)
63HS
High pressure sensor
TH34
Thermistor
<Comp. surface>
OCH533D