– 21 –
Wire connection change of fan motor
The motor wires for the fan have been connected to
F
2
at shipment from the factory.
Change the wire connection if change of the external static pressure is required due to the duct resistance.
<MMD-AP048 type>
F1 F2 F3 F4
Bl
ac
k
Bl
ue
Or
an
ge
Electrical control box
Fan motor
2P terminal block
4P terminal block
Control
P.C.
board
FM
Lead wire for changing the external static pressure
When changing the external static pressure is
necessary, change connection of this lead wire.
Orange (at shipment of factory)
F1
F2
F3
F4
F1
F2
F3
F4
Bl
ac
k
Bl
ue
Or
an
ge
Electrical control box
Fan motor
4P terminal block
2P terminal block
Control
P.C.
board
FM
Lead wire for changing the external static pressure
When changing the external static pressure is
necessary, change connection of this lead wire.
Orange (at shipment of factory)
Orange (at shipment of factory)
Bl
a
c
k
Bl
ue
Or
an
ge
Fan motor
FM
Terminal block No.
Fan motor wiring
Remarks
F1 (Low static pressure tap)
Blue
—
F2 (Middle static pressure tap)
Orange
At shipment from factory
F3 (High static pressure tap)
Black
—
Terminal block No.
Fan motor wiring
Remarks
F1 (-)
Blue
Not used.
F2 (Low static pressure tap)
Orange
At shipment from factory
F3 (High static pressure tap)
Black
—
<MMD-AP072 type, AP096 type>
REQUIREMENT
When the external static pressure was changed, enter the changed static pressure value in the identification
plate of the unit.
<MMD-AP048, AP072 type>
<MMD-AP096 type>