20 | Walker Filtration
8.2.3 Energy management application selection
For correct energy management operation it is important to select the correct mode of
operation for the application.
For applications where the compressor, receiver and the dryer are in the same location
linking the controller energy management into the compressor pressure limit switch, an
effective method of energy saving is offered.
For applications where the compressor is a continual operating type or the dryer is point
of use or is remote from the receiver, then a dew point dependant method of switching
should be employed.
This links the operation of the energy management to the outlet dew point from the
dryer.
The flow diagram below illustrates the correct selection:
Energy management
required
Point of use dryer
application (remote from
compressor)
Dewpoint dependant energy
management switching
Dewpoint monitoring
Continuous running
compressor
Dewpoint dependant energy
management
switching
Dryer directly connected to
local compressor
and receiver
Compressor load energy
management
switching
Dry receiver application
15 second default EM delay
Wet receiver application
Input compressor/receiver
operating parameters
Calculated EM delay
Compressor
Dry air receiver
Wet air receiver
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
DRY AIR RECEIVER
COMPRESSOR
WET AIR RECEIVER
COMPRESSOR
1
4
5
6
7
8
9
10
11
12
13
14
15
16
2
3
