Aqua-Hot AHE-100-02S-12 VDC Service Manual Page 25

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Page 25
© 2011 Aqua-Hot
®
AHE-100-02S Hydronic Heating System Service Manual—Rev. B
SECTION 5: AQUA-HOT COMPONENTS
11.
Install the replacement pump onto the Aqua Hot, and t
tighten down the union previously loosened.
12.
Re-Install the check valve onto the Aqua-Hot zone cir-
culation pump. The arrow on the check valve must
point away from the circulation pump.
13
. Reconnect the interior heating zone fitting and line to
the check valve.
14.
Reconnect the wires on the replacement pump to the
wire harness on the heater by using a red butt connector.
Be sure to review the wiring schematic in appendix A
for proper pump wiring.
15.
Refill the Aqua-Hot boiler tank with the antifreeze and
water heating solution.
NOTE: The Aqua Hot zone circulation pump is not a self
priming pump. If the circulation pump gets an air pocket, it
will be necessary to bleed the air out of the zone circulation
pump. Reference appendix B For the proper zone circula-
tion pump bleeding procedure.
C B A
Copper
Pump Stand
Union
Check Valve
Back view of
pump
Figure 15
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