Imperial Systems CMAXX, Installation, Operation & Maintenance Manual

Page: 13 / 28

To power up the master controller and the channel expander, connect
line power to L1 and L2 (see Dimensional Specifications, Figure 1).
Connect the solenoids between the selected output and the solenoid
common. Solenoid common and L2 are internally connected.
Switches connected to the control inputs at the top of the board must
be isolated contacts connected only to the relevant terminal and to the
common terminals. The following subparagraphs describe the external
switch connections. Refer to figure 2 for switch connection illustration.
Note: Supply voltage to the timer controller must match the rated
voltage of the pilot valve solenoids.
5.4 DIFFERENTIAL PRESSURE KIT INSTALLATION
There are high and low pressure ports on the CMAXX that need
connected to the pressure transmitter on the timer control board via
¼ ” OD tubing.
The low-pressure port (-) is located in the clean air side of the dust
collector near the air header tank (A – arrow in the below diagram),
and the high-pressure port (+) is located in the base frame of the
CMAXX (B-arrow in the below diagram).
Instructions:
1. Thread a push connect fitting into both 1/8” NPT differential
pressure ports on the CMAXX. (there are both straight and 90 degree
fittings supplied so that you can use the fitting that will work best in
your application)
2. Thread the push connect fittings into the 1/8” NPT ports on the
bottom of the timer controller. (typically, the straight fittings work
best on the control panel)
3. The differential pressure kit comes with a 100’ roll of silver tubing.
this tubing will be used to connect the high-pressure port on the CMAXX
to the (+) pressure port on the timer controller, and the low-pressure
port on the CMAXX to the (-) pressure port on the timer controller.
4. To connect the tubing into the push to connect fitting cut the end
of the tubing square and firmly push the tubing into the fitting until
it fully clicks into place.
5. When running the tubing between the CMAXX and timer controller
do not kink the tube or clamp so tight that is crushes it.
If your installation requires the timer controller to be located further
away from the CMAXX than 50’ an additional differential pressure
tubing kit can be purchased.
imperialsystemsinc.com 13 Imperial Systems Inc.