Warranty

12
WHL-012 REV. 10.31.17
Figure 1 – 140W Specifications and Dimensions
DESCRIPTION
DIAMETER (ALL NPTM)
A
Automatic Air Vent
-
B
Intake Pipe Connection
3”
C
Exhaust Vent Connection
3”
D
Relief Valve Adapter
¾” NPT
E
CH Supply Adapter
1” NPT
F
CH Return Adapter
1” NPT
G
DHW Outlet Adapter
¾” NPT
H
DHW Inlet Adapter
¾” NPT
I
Gas Connection Adapter
½” NPT (1/2” X ¾” Bell Coupling Provided to Upsize Gas Line)
J
Condensate Adapter
-
Table 5 – 140W Adapter Specifications