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ESP-LXIVM Series Controllers
Connect Power to the Controller
Connect Power Source
The ESP-LXIVM controller has an internal transformer that reduces
supply voltage (120 VAC in U.S. models; 230 VAC in International and
European models; 240 VAC in Australian models) to 24 VAC to oper-
ate the 2-Wire Devices connected to the controller. You will need to
connect power supply wires to the transformer’s three wires.
CAUTION
Electric shock can cause severe injury or death. Make sure
power supply is turned OFF before connecting power wires.
All electrical connections and wiring runs must be made
according to local building codes.
With the front panel removed, locate the transformer wiring com-
partment in the lower left corner of the controller cabinet. Remove
the screw on the right-hand side and pull the cover off to expose
the wiring compartment.
Wiring Connections
120 VAC (US) 230 VAC (International)
Black supply wire (hot) to the
black transformer wire
Black supply wire (hot) to the
black transformer wire
White supply wire (neutral) to
the white transformer wire
Blue supply wire (neutral) to
the blue transformer wire
Green supply wire (ground)
to the green transformer wire
Green-with-yellow-stripe
supply wire (ground) to the
green-with-yellow-stripe
transformer wire
NOTE: 240 VAC Australian models come equipped with an
installed power supply cable.
Strip the insulation from the three incoming wires to expose
approximately 1/2 in (13 mm) of bare wire.
Remove the knockout on the bottom of the cabinet below the
transformer and attach a 1/2 in (13 mm) conduit fi tting to the
bottom entrance of the wiring compartment.
NOTICE
240 VAC (Australian) units do not require a conduit because
the power supply cable is already installed.
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