Navien NPE-32AWE, Installation Manual

Page: 25 / 68

25 Insta ll ing the Water Heater
6. R emove the plastic insulation from the external pump wire
with a wire stripper before connecting it to the pump.
7 . Connect the External Pump Wire to the proper wires from
the pump junction box.
WARNING
8. Locate the 10 Dip switch( S W1) on the front panel and turn
on the proper switches based on the desired recirculation
setting (see
R ecirculation Dipswitch S ettings below).
1 2 3 1 2 4 5 6 7 8 9 10
ON ON
9. Turn on the switch beside the front panel.
10. Put the water heater cover back on and secure it with the
C H G
Condensate
Gas
Domestic
Cold Water
Domestic
Hot Water
Domestic
R ecirculation
R eturn
Recirculation Using External Pump Only
C H G
Condensate
Gas
Domestic
Cold Water
Domestic
Hot Water
Domestic
R ecirculation
R eturn
Recirculation Using Two Pumps
(Navien Internal Pump & External Pump)
To avoid danger of electrocution turn OFF the water heater
until external pump connected.