Installing the Water Heater 23
Locate the 10-switch DIP(SW1) on the front panel and turn on
8.
the proper switches based on the desired recirculation setting
(see Recirculation Dipswitch Settings below).
1 2 3
1 2
4 5 6 7 8 9 10
ON
ON
Turn on the switch beside the front panel.
9.
Put the water heater cover back on and secure it with the
10.
4 screws.
C
H
G
Condensate
Gas
Domestic
Cold Water
Domestic
Hot Water
Domestic
Recirculation
Return
Recirculation Using External Pump Only
Remove the 2 screws holding the PCB box in place and remove
3.
the PCB box from the system.
Remove Screws here.
Connect the external pump wiring connector to the connector
4.
socket on the PCB(TB1).
TB1
Put the PCB box back in its original place and secure it using
5.
the 2 mounting screws.
Remove the plastic insulation from the external pump wire
6.
with a wire stripper before connecting it to the pump.
Connect the External Pump Wire to the proper wires from the
7.
pump junction box.
WARNING
To avoid the danger of electric shock, turn on the water heater
ONLY after connecting the wire to the external pump.
Summary of Contents for NPE-180A
Page 61: ...Appendixes 61 5 5 6 Fan Gas Assembly 1 8 13 14 15 6 2 4 5 10 10 10 3 11 7 9 12...
Page 66: ...Memo...
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