Input/Output Circuit - Mitsubishi Electric AHU-KIT-SP Manual

7. Input/output circuit

Refer to the diagram below for wiring.
Analog input
Remote control
communication
-
+
-X1 (remote control), X5 (Modus) can be used for
only master unit.
-CNN (Thi-R1/2/3) and CNH (Thi-A) must be
connected.
See the 21 -AHU-T-393 manual for details
X0-1 is the functional ground.
Wrap the ferrite core included around 6 turns (5 loops).
Connect to the plate of the enclosure.
2
Wire diameter: 0.75 mm Greater than or equal to.
Line length: 40 cm or more (recommended).
Connect the X0-3 to the L-phase of the outdoor unit.
Connect the X0-4 to the N-phase of the outdoor unit.
Connect the X0-5 to the communication terminal of the outdoor unit.
X0-2 is a free port. Do not connect anything.
Heat exchange
sensor
Thi-R2
Common
Thi-R3
Thi-R1 Cascade
spare
Cascade
B A
Thi-A
GND
Return air
Modbus
sensor
JX1
(Termination available/ not available)
1–2 Short: not available
1
2–3 Short: available 100 Ω
3
Digital output
X0
5 4 3 2 1
Digital input
Outdoor unit
3 2
N
AC220–240V 50 Hz
AC220V 60 Hz N
Enclosure
plate Functional
ground wire
1
1
MODEL NAME
Air Handling Unit Interface
MODEL TYPE
AHU-KIT-SP
ISSUE CLASSIFICATION
MORIKAWA
DWG NO.
PSZ000Z308
21.09.17
SPECIFICATION
REV.MARK PAGE
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