ESP-LX Modular Controller 75
Connect Source Power
WARNING: To prevent electrical shock, make sure
all supply power is OFF before connecting these
wires. Electrical shock can cause severe injury or
death.
The ESP-LX Modular controller has an internal transformer that
reduces supply voltage (120 VAC in U.S. models; 230 VAC in
international models; 240 VAC in Australian models) to 24 VAC to
operate the valves connected to the controller. You will need to
connect power supply wires to the transformer's three wires.
NOTE: Indoor units and 240 VAC (Australian) units
do not require a conduit because the cable is already
installed.
CAUTION: All electrical connections and wiring
runs must be made according to local building codes.
With the front panel removed, locate the high-voltage
compartment in the lower left corner of the controller cabinet.
Remove the screw on the right edge of the compartment cover.
Then pull the cover open to expose the transformer's primary
input wires.
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