Changing Blower External Static Pressure - Mitsubishi Electric CITY MULTI PVFY-P18 NAMU-E Installation Manual

13.4. Changing blower external static pressure

The air handler is equipped with an adjustable static pressure
setting. The available settings are shown in the table below.
Model Available ESP [in. WG]
PVFY-P12 0.30
PVFY-P18 0.30
PVFY-P24 0.30
PVFY-P30 0.30
PVFY-P36 0.30
PVFY-P42 0.30
PVFY-P48 0.30
PVFY-P54 0.30
*PVFY-P36 in Downfl ow External Static pressure: 0.60
**PVFY-P54 in Downfl ow External Static pressure: 0.70
The air handler will be set to 0.50 ESP from the factory.
The blower static pressure setting can be changed by changing the
dip switches SWA & SWC. Vertical, Horizontal Right, and Horizontal
Left Switch C will always be in the "1" position. When the air handler
is installed in the Downfl ow position, Switch C needs to be in the "2"
position.
24
0.50 0.80
0.50 0.80
0.50 0.80
0.50 0.80
0.50 0.80*
0.50 0.80
0.50 0.80
0.50 0.80**
External Static Pressure
0.3 in. WG
(75 Pa)
0.5 in. WG
(125 Pa)
(Factory Setting)
0.8 in. WG
(200 Pa)
Vertical,
Horizontal Right,
Horizontal Left
(Factory Setting)
Downflow
Switch A
3
2
1
3
2
1
3
2
1
Switch C
1
2
1
2