Concealed Duct High Static Pressure | Installation Manual |
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!Wire connection change of fan motor
This duct is composed of 3 fan motors.
To change external static pressure by duct resistance, connect the 3 connectors of the orange lead wires that are connected to the underside of the fan tap changing terminal block to the same number (F1, F2 or F3) terminal.
The wires of the fan motor has been connected to (F2) [External static pressure 137Pa (14mmAq)] as factory default.
Low static pressure (F1)
FM | FM |
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Fan motor | YEL | BLU | ORG | Fan motor | ||
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YEL
BLU
ORG
FM
Fan motor
YEL: Yellow
BLU: Blue
ORG: Orange
YEL |
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F1 F2 F3 F4
F1 F2 F3 F4
F1 F2 F3 F4
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| ORG |
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ORG |
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| FAN3 |
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| FAN2 | ||||||
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Standard (Middle) static pressure (F2)
ORG
FAN1
Fan tap changing terminal block
FM
Fan motor
FM | FM |
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| Fan motor |
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| ORG | Fan motor |
| ORG |
YEL | BLU | ORG | YEL | BLU | YEL | BLU | ||
F1 F2 F3 F4 | F1 F2 F3 F4 | F1 F2 F3 F4 | ||||||
ORG |
| FAN3 | ORG |
| FAN2 | ORG |
| FAN1 |
Electrical control box
Control
P.C. board 
4P terminal block
3P terminal
2P terminal block block
High static pressure (F3)
FM
Fan motor
FM
Fan motor
FM
Fan motor
YEL
BLU
ORG
YEL
BLU
ORG
YEL
BLU
ORG
F1 F2 F3 F4
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F1 F2 F3 F4
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| ORG |
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F1 F2 F3 F4
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| ORG |
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Terminal block No. | Fan motor wiring | External static pressure | Remarks | ||
Pa (mmAq) | |||||
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F1 | Yellow | 69 | (7) |
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Low static pressure |
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F2 | Blue | 137 | (14) | Factory default | |
Middle static pressure | |||||
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F3 | Orange | 196 | (20) |
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High static pressure |
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* Do not use F4.
NOTE
When the external static pressure is changed, write down the static pressure once change in the wiring diagram of the indoor unit is made.
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