22
7-5. TEST POINT DIAGRAM
7-5-1. Indoor controller board
PEA-A12AA
PEA-A18AA
CN01 Power supply voltage (208 - 230VAC)
SWE
Emergency operation
SW1
Model selection
SW2
Capacity setting
CN32 Remote start/stop adapter
CN24 Heater control (12VDC)
CN22 For MA remote controller cable con-
nection
(10 - 13 VDC (Between 1 and 3.))
CN51 Centralized control
CN41 JAMA standard HA terminal A
CN44 Thermistor
(liquid/condenser/evaporator
temperature)
CN4F Float thermistor
CN20 Thermistor (Inlet temperature)
CN3C Indoor-outdoor transmission
(0 - 24VDC)
CNMF Fan motor output
1 - 4: 310 - 340 VDC
5 - 4: 15 VDC
6 - 4: 0 - 6.5 VDC
7 - 4: Stop 0 or 15 VDC
Run 7.5 VDC
(0 - 15 pulse)
CNP
Drain-up mechanism output (200VAC)
CN2L LOSSNAY
CN4Y For Fan control
CN90 Wireless remote controller
(*1)
V
FG
Voltage on the (-) side of PC672 and
C955
(Same with the voltage between 7 (+)
and 4 (-) of CNMF)
V
CC
Voltage between the C955 pins 15
VDC
(Same with the voltage between 5 (+)
and 4 (-) of CNMF)
V
sp
Voltage between the C626 pins
0VDC (with the fan stopped)
1 - 6.5VDC (with the fan in operation)
(Same with the voltage between 6 (+)
and 4 (-) of CNMF)
CN3C
CNP
Fuse(6.3A 250V)
CNMF
CN20
CN44
CN90
CN4F
LED1
LED2
LED3
CN4Y
SWE
CN2L
C626
PC672
SW2
CN41
CN22
CN24
SW1
CN32
CN51
CN01
C955
