Champion ci 40 - Lead; Lag Pressure Switches

Champion Compressors Ltd. Manual No. 975203 Rev H
23
When a fault is detected, or the Emergency Stop button is depressed, the
machine will not start until the fault is removed and the Fault Reset button is
pressed.
9.3 Lead / Lag Pressure Switches
The central and lead / lag control boxes contain two pressure switches, (lead
and lag), which have been factory set as listed below.
Lead / Lag Pressure Switch Settings
Nominal Operating
Pressure
(kPa)
Nominal Pressure
Differential
(kPa)
Lead
Load
Pressure
(kPa)
Lead
Unload
Pressure
(kPa)
Lag
Load
Pressure
(kPa)
Lag
Unload
Pressure
(kPa)
780 80 700 780 650 730
1000 80 920 1000 870 950
If the settings have “drifted” during transport, it will be necessary to adjust
them on site. This is accomplished as follows (refer Figure 7):
1. (a) To increase pressure - turn range screw anticlockwise
(b) To reduce pressure - turn range screw clockwise
2. (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 required refer
Champion Compressors.
Fig. 7 - Control Pressure Switch (Central Control Box)