John-wood Noritz N-069M-DV User Manual download pdf (Page 53)

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.

Pump Control

Wire Tag

Supplies Power for

Circulating Pump

(Use a Relay for

Larger Pumps)

Pump Wiring

*This feature is not available when using

the Quick Connect 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

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John-wood Noritz N-069M-DV User Manual Page 53