Increasing The Fan Speed - Sanyo SPW-CR363GVH8 Service Manual

7. Concealed Duct Type

7-6. 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.
(5) Place the cable neatly in the box and reinstall the
cover plate.
Indoor Fan Performance
12 Type
20
150
15
100
10
50
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 exten-
sion 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
NOTE HH : Using the booster cable
H : At shipment
ECO MULTI SYSTEM Unit Specifications
Electrical component box
Booster cable
Fan
motor
Fan motor socket
(At shipment)
25 Type
25
200
20
150
15
100
10
50
5
0
10 20 30
Air Flow (m 3/ minute)
0788_U_I
I - 99
Booster cable
(Booster cable installed)
0491_M_I
9 Type
15
10
100
50
5
0
5 10
Air Flow (m /minute)
3
0724_U_I
36, 48 Type
25
200
20
150
15
100
10
5
0
20 30 40
Air Flow (m /minute)
3
0789_U_I
3
/
3
/minute, while
SM830063
1
50