User Guide

47
Natural gas and Propane
(LP) main burner with
igniter assembly. NG burner
shown. LP burner similar
but with drain hole (item 17
in Figure 1).
Flare
Nut
††
44
46
42
39
41
43
40
38
45
Figure 50
31
32
47
49
33
52
Shown with
Junction Box Cover
removed for clarity.
48
51
50
Figure 51
Notes:
* Items not supplied with the water heater.
** The side recirculation loop connections may not be
used as the primary water inlet and outlet connections.
See “Combo Heating Inlet And Outlet Side Taps”.
*** Caution harness has 120 VAC In operation.
**** See “Vent Pipe Installation” for more information.
† The orifi ce on Natural gas models has Right-hand
thread, the orifi ce on Propane (LP) models has Left-
hand thread.
†† For Natural gas models the Flare Nut has Right-hand
thread. For Propane (LP) models the Flare Nut has
Left-hand thread.