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PUMP
Crimping Terminal
Wiring
Throughway
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 120 V 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 120 V will
be supplied directly from a wall circuit to the pump.
5. Replace the front cover.
Supplies Power for
Circulating Pump
(Use a Relay for
Larger Pumps)
Pump Wiring
* This feature is not available when using the Quick Con-
nect Multi System feature.
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.
Circulation Pump
AC120V
Relay (ex. Omron G7L2ABUBJCBAC120)
Connect to Pump Control
Wires in Unit
0
1
2
4
Pump Control
Wire Tag
07.1.5, 4:34 PMPage 23