INSTALLING THE
I
NDOOR UNIT
E-
20
Increasing Fan Speed
External Static Pressure
If external static pressure is too great(due to long extension of ducts, for
example), the air flow volume may drop too low at each air outlet. This
problem can be solved by increasing the fan speed using the following
procedure.
Remove the screw on the electrical component box and remove the
cover plate.
1
Adjust the DIP switch(SW05) on the main PCB to the “OFF” position.
2
Re-install the cover plate and join the removed screw.
3
Switch No.
K3
Switch Position
ON
OFF
Function
Normal speed
High speed
External Static Pressure (mmAq)
1.0
015201-14021C
-200001-300000
015201-14023E
-200001-300000
015201-140390
-200001-300000
015203-1403F9
-200001-300000
015201-16025F
-200001-300000
011224-1940D5
-200001-300000
015201-160370
-200001-300000
011224-1940E6
-200001-30000
0
015203-160183
-200001-300000
011224-1940F7
-200001-300000
015203-1603CE
-200001-300000
011224-194208
-200001-300000
2.0 3.0 4.0
MH026FECA
MH035FECA
MH052FECA
❊ 2.0mmAq is the basic model of this product.
Refer to the table above depending on the installation environment.
MH***FEEA IM_E_26174 5/11/06 4:23 PM Page 20