100299634_2000545244_ Rev. A
53
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
††
43
45
41
38
40
42
39
37
44
Figure 55.
30
46
51
32
48
Shown with Junction Box
Cover removed for clarity.
47
50
31
49
Figure 56.
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 orifice on Natural gas models has Right-hand
thread, the orifice 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.
