Mitsubishi Electric AHU-KIT-SP Manual page 7

Air handling unit interface
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●Input/output list #2 of AHU interface
Connector
Item
Housing
LED
CNH
2P
Return air temperature
CNF
2P
Reserve
Heat exchanger (U-bend)
Analog
CNN
6P
Heat exchanger (capillary)
Input
Heat exchanger (header)
X3
2P
Capacity control
X2-1: run/stop
X2-2: cooling/heating
Digital
X2
5P
X2-3: emergency stop
Input
X2-4: reserve
X2-5: common
X4a
2P
Outdoor unit, interface error
X4b
2P
Compressor ON
X4c
2P
Defrost ON
Digital
Selection:
Output
①Run/stop【initial】
X4d
2P
②Cooling/heating
LED1
Normal
LED2
Error
X1
2P
Remote control
X5
3P
Modbus
Cascade
2P
X7
2P
Cascade reserve
Input/
X0-1: functional ground
Output
X0-2: empty port
X0
5P
X0-3: power L phase
X0-4: power N phase
X0-5: communication terminal
Function
Color Remarks
Black Thi-A
Yellow The CNF connector can not be used.
Thi-R1
Yellow
Thi-R2
Thi-R3
Depending on the JX2 setting,
Green
0-10V/4-20mA can be switching.
Power supply: AC24-240V/DC20-130V 0.5A
Power supply: AC24-240V/DC20-130V 0.5A
Green
Power supply: AC24-240V/DC20-130V 0.5A
Power supply: AC24-240V/DC20-130V 0.5A
Common terminal
Voltage free at contact output
Voltage free at contact output
Voltage free at contact output
Green
Voltage free at contact output
X4d is selectable by Modbus communication
Green
Red
Green Remote control and SC-ADNA-E can be connected
Green RS-485 communication circuit
Green
X0-2 is an empty port due to reinforced insulation
Green
AC220–240V
AC220–240V
MODEL NAME
Air Handling Unit Interface
MODEL TYPE
AHU-KIT-SP
ISSUE
CLASSIFICATION
SPECIFICATION
MORIKAWA
DWG NO.
REV.MARK PAGE
PSZ000Z308
21.09.17
7/38

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