Champion Compressors Ltd. Manual No. 975203 Rev H
17
8.3 Control Pressure Switch
The control pressure switch (tank mounted or supplied loose on base mounts
for line mounting) has been set prior to leaving the factory with the following
settings:
Nominal
Operating
Pressure
(kPa)
Nominal
Pressure
Differential
(kPa)
Load
Pressure
(kPa)
Unload
Pressure
(kPa)
780 120 660 780
1000 120 880 1000
1300 120 1180 1300
If the settings have “drifted” during transport, it will be necessary to adjust
them on site. This is accomplished as follows (refer Figure 4):
1. Remove the protective cover from the pressure switch assembly.
2. (a) To increase pressure - turn range screw clockwise
(b) To reduce pressure - turn range screw anticlockwise
3. (a) To increase differential - turn differential screw clockwise
(b) To reduce differential - turn differential screw anticlockwise
For safety reasons, under no circumstances adjust the setting differently
to the ones listed above. If different pressure settings are desired refer
to your Champion Compressors Service Agent
.
Adjust under pressure
Fig. 4 - Control Pressure Switches
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