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Installation Manual 9
ENGLISH
Installation
Insulate the connected pipes completely(all thermal insulation must comply with local requirement)
Thermal Insulation
Wiring Connection
Refrigerant pipe
(Local supply)
Thermal insulator for refrigerant pipe
(Local supply)
Overlap with thermal
insulator for piping
Make sure that there is no
Thermal insulator for
refrigerant pipe(Local supply)
clearance here
Lock nut
Conduit
L(L1) N(L2)
Power Supply
High Voltage
(208/230V)
AB
Communication
CAUTION:
Insulate completely unconnected pipes as shown in the Figure.
Not connected pipe
Always seal up the
tip of unused pipe by brazing
Thermal insulator for
refrigerant pipe(Local supply)
Make sure that there is no
clearance here
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.
Wiring Connection
Terminal Block
HR Unit
L(L1) N(L2)
Terminal Block
HR Unit
AB
HR UNIT POWER INPUT
Master
Outdoor Unit
SODU. B SODU. A IDU. B IDU. A CEN. B CEN. A DRY1 DRY2 GND 12V
WARNING : Make sure that the screws of the terminal are free from looseness.
WARNING : Loose wiring may cause the terminal to overheat or result in unit malfunction.
A fire hazzard may also exist.
Therefore, be sure all wiring is tightly connected.
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