CWH companion water heater — Product Manual
Boiler/CWH piping — 70 or 110 / Left-side mixing valve
(cont.)
Figure 11 Typical piping for WM97+70 or
110 — CWH installed with left-
side mixing valve
All piping must comply
with the instructions in the
WM97+ Boiler manual.
Piping can be routed out ei-
ther side or both sides of the
CWH piping access cover.
The example shown here is
just one possibility.
CWH circulator mounting
• The circulator MUST be mounted in
the position shown — pumping out
of the boiler toward the CWH.
This is
required to flow boiler water through
the water heater in the correct direction.
• Rotate the lower circulator flange adapt-
er 10° counterclockwise (looking down
on the flange). This is necessary to ensure
the circulator electrical housing will clear
the inside of the piping access cover.
Boiler water connections
• The CWH boiler water supply and
return lines MUST be routed to the
boiler connections as shown to en-
sure proper flow.
Part number 635-500-156/0113
15
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