Increasing Fan Speed - Samsung HH105ECM Installation Manual

Increasing fan speed

K1 K2 K3 K4
SW03
Range of static pressure
External static pressue(mmAq)
Model
Min. Normal
HH105ECM
HH140ECM
8 14
HH175ECM
HH175EZM
Without air filter
25
20
HH
15 Maximum Air Flow
10
5
Minimum Air Flow
0
10 15 20 25 30
Air Flow (m 3 /min)
20
E-
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.
Switch No.
K3
How to Read Diagram
1 The vertical axis is the external static pressure(mmAq) while the horizontal
axis represents the AIR FLOW(m
2 The characteristic curves for 'HH', 'H', 'Med', and 'Low' fan speed controller
Max.
are shown.
3 The nameplate values are shown based on the 'H' air flow.
20
4 If external static pressure is too great, the air flow volume may drop too
low as explained above.
N N N N o o o o t t t t e e e e
Without air filter
HH105ECM
25
20
15
10
5
0
20
35 40 45
Switch Position
ON
OFF
3 /min).
◆ HH : DIP Switch OFF position(High speed)
H : At shipment(Normal speed)
HH140ECM
HH
25 30 35 40 44
Air Flow (m 3 /min)
Function
Normal speed
High speed
Without air filter
HH175ECM/175EZM
25
20
Maximum Air Flow
15
10
5
Minimum Air Flow
0
15 20 25 30 35 40 45 50 55 60
Air Flow (m 3 /min)