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Pump Wiring
Connecting the pump control wire
1. Leave enough slack so that the pump control
wires will stay connected if the unit is removed
from the wall.
2. Remove the front cover of the heater (4 screws).
3. Cut off the connector at the end of the pump
control wires.
4. Wire the pump control wires through the wiring
throughway and connect them to the wiring inside
the pump (this will be the power supply for the pump,
do not also connect 120VAC to the pump).
If a large pump is being used (greater than 85W) use
the voltage from these wires as the signal to close a
normally open relay through which 120VAC will be
supplied directly from a wall circuit to the pump.
5. Replace the front cover.
Relay connection with larger pumps (>85 W)
1. Locate and prepare the pump control wires as described above.
2. Choose a suitable installation location for the relay where it will be protected from moisture.
3. Connect the pump control wires from the heater to the signal input on the relay.
4. Cut one of the electrical supply leads and wire it across the open terminals of the relay.
5. Secure all connections and replace the front cover of the heater.
Connect to Pump Control
Wires in Unit
* This feature is not available when using the Quick Con-
nect Multi System feature.
120VAC
1
4
Relay (ex. Omron G7L2ABUBJCBAC120)
0
2
Circulation Pump
Pump Control
Wire Tag
Crimping Terminal
Wiring
Supplies Power for
Throughway
Circulating Pump
(Use a Relay for
Larger Pumps)
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