ā 82 ā
(3) Connection check of FS (Flow Selector) unit with indoor unit
CN01 CN02
CN81
Indoor unit
Remote Controller
L N
A B
U1 U2
A B
To Header unit
U1/U2
Cooling/Heating
FS unit
1
2
4
3
CN01 CN02
CN81
Indoor unit
Remote Controller
L N
A B
U1 U2
A B
Cooling/Heating
FS unit
CN01 CN02
CN81
Indoor unit
Remote Controller
L N
A B
U1 U2
A B
Cooling/Heating
FS unit
NOTE
The above figure does not described all the electric wiring. For details, refer to the Installation Manual of FS unit.
Main check items Check
(1) Is the indoor/outdoor communication line connected to U1/U2 terminals of the header unit?
(2) Is the control wires connected of FS unit to the connector CN81?
(3) Is the power supply wires connected of FS unit to RS Faston terminal?
(4) In case of the indoor unit wish end-closed connector, Is power supply wire of FS unit connected to
end-closed connector?
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