Installation manual

Increasing Fan Speed
Graph of fan speed and limitation of 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(SW03) on the main PCB to the “OFF” position.
2
Re-install the cover plate and join the removed screw.
3
The value was measured at the wet fan speed.
1
Reading the graph
◆ Hatching part A : Range of normal use
◆ Hatching part B : Reliable, required cares not to loose a static pressure
◆ Hatching part C : Reliable, required cares not to make noise
◆ Out of hatching : Forbidden use
2
K1 K2 K3 K4
SW03
Switch No.
K3
Switch Position
ON
OFF
Function
Normal speed
High speed
Model : ✴✴052✴✴
External Static Pressure (mmAq)
Fan Speed (CMM)
9
3
4
5
6
7
8
10 11 13 14 15
HI
TURBO
LOW
B
A
C
Model : ✴✴070/072✴✴
External Static Pressure (mmAq)
Fan Speed (CMM)
10
3
4
5
6
7
8
9
10
11
12
13
14
12 14 16 18 20 22
HI
TURBO
LOW
B
A
C
E-15
ENGLISH