Increasing The Fan Speed - Sanyo SPW-X483GH56 Installation Instruction

3-29.

Increasing the Fan Speed

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 may
be solved by increasing the fan speed using the
following procedure:
(1) Remove 4 screws on the electrical component
box and remove the cover plate.
(2) Disconnect the fan motor sockets in the box.
(3) Take out the booster cable (sockets at both ends)
clamped in the box.
(4) Securely connect the booster cable sockets
between the disconnected fan motor sockets in
step 2 as shown in the Fig. 3-94.
(5) Place the cable neatly in the box and reinstall the
cover plate.
Indoor Fan Performance
12 Type
6 6 6 6 6
20
U
15
10
5
0
5 10
Air Flow (m 3 /minute)
0786_U_I
How to read the diagram
The vertical axis is the external static pressure (mmAq) while the horizontal axis represents the AIR FLOW (m
minute). The characteristic curves for "HH," "H," "Med," and "Low" fan speed control are shown.
The nameplate values are shown based on the "H" air flow. For the 25 type, the air flow is 21 m
the external static pressure is 5 mmAq at "H" position. If external static pressure is too great (due to long
extension of duct, for example), the air flow volume may drop too low at each air outlet.
This problem may be solved by increasing the fan speed as explained above.
18 Type
20
150
15
100 10
50
5
0
10 15
Air Flow (m 3 /minute)
0787_U_I
Fig. 3-95
NOTE HH : Using the booster cable
Booster cable
Fan
motor
Fan motor socket
(At shipment)
25 Type
25
150
20
100
15
50
10
5
0
10 20
Air Flow (m minute)
3/
H : At shipment
46
S4179544
Electrical component box
Booster cable
(Booster cable installed)
Fig. 3-94
9 Type
15
10
5
0
5
Air Flow (minute)
36, 48 Type
25
200
20
150
15
100
10
50
5
0
30
20
Air Flow (m
0788_U_I
3
/minute, while
0491_M_I
100
50
10
0724_U_I
200
150
100
50
30 40
3 /minute)
0789_U_I
3
/