INSTALLATION
17
ENGLISH
Wiring Connection
Connect the wires to the terminals on the control board individually according to the outdoor unit
connection.
- Ensure that the color of the wires of outdoor unit and the terminal No. are the same as those of
HR Unit respectively.
Terminal Block
HR Unit
Master Outdoor Unit
HR Unit
L(L1)
N(L2)
Terminal Block
HR Unit
A
B
HR UNIT POWER SUPPLY
220-240 V~ 50/60 Hz
COMMUNICATION LINE
(HRU-ODU)
SODU. B SODU. A
IDU. B
IDU. A
CEN. B
CEN. A
DRY1
DRY2
GND
12V
Lock nut
Conduit
L(L1)
N(L2)
Power Supply
High Voltage
(220-240 V)
AB
Communi
-cation
WARNING
!
Loose wiring may cause the terminal to overheat or result in unit malfunction.
A fire hazard may also exist.
Therefore, be sure all wiring is tightly connected.
WARNING
!
Make sure that the screws of the terminal are free from looseness.
Summary of Contents for Multi V PRHR023
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