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10
EASYTOUCH
®
PL4/PSL4 Control System Installation Guide
Control panel
(fold down to
access circuit board
and low voltage
compartment)
Control Panel
Retaining
screw
Control Panel
Retaining
screw
EasyTouch PL4/PSL4 Control System Power Center (front view)
(Front door and high voltage compartment panel removed)
Accessing the EasyTouch
®
PL4/PSL4 Control System
Circuit Board and Electronics
The main EasyTouch PL4/PSL4 Control System circuit board is located behind the control panel
located on the front of the Power Center. The main circuit board provides connectors for the
auxiliary relays, valve actuators and sensors. To access the circuit board connectors, fold down the
main control panel. Note:
To access the EasyTouch PL4/PSL4 Control System circuit board connectors:
1. Loosen the two retaining screws securing from the top edge of the control panel.
2. Fold down the control panel to access the rear of the circuit board for the electrical
connections.
3. For relay, valve actuators and sensors installation and connection instructions see the
following:
•
Connecting EasyTouch PL4/PSL4 Control System Relays
, page 11
•
Installing Valve Actuators
, page 12
•
Installing and Connecting Temperature Sensors, page 13
4. After electrical connections have be completed, close the control panel and tighten the two
retaining screws.