Plumbing The Hydronic Heating System - Aqua-Hot 600-D Installation Manual

Plumbing the Hydronic Heating System:

1. Lay out the plumbing lines for all heat exchangers.
2. Label each line with the heating loop number and des-
ignate as an inlet or an outlet line.
NOTE: Run all plumbing lines in areas where they cannot be
pinched off or damaged under normal operating con-
ditions.
Be sure to secure all lines where necessary and apply
protective shielding in areas where chafing may occur.
Rubber Coated/Closed-Type clamps are recommended
when securing the plumbing lines.
Outlet Port
(Highest Port)
Mounting
Bracket
Cozy Heat Exchanger
(Rear View)
Figure 23
© 2008 Aqua-Hot ® 600-D Hydronic Heating System Installation Manual
section 2: Hydronic Heating system
3. Connect and clamp the outlet line from the Aqua-
Hot to the lowest port on the closest heat exchanger
for both heating loops. Reference Figures 23 and 24.
Then, connect each additional heat exchanger in the
same arrangement (low to high). Reference Figure 22.
4. Connect and clamp the inlet line from the heater to the
highest port on the last heat exchanger for both heating
loops. Reference Figure 22.
NOTE: Reference Figure 24 for visual instructions on connect-
ing PEX-type tubing to each heat exchanger.
Plumbing heat exchangers in this manner will allow
air to escape naturally. If air is trapped in any heat ex-
changer, it will significantly reduce the heat exchanger's
overall heating performance (heat output).
5. Connect and tighten all interior plumbing lines, outlet
and inlet, to the Aqua-Hot's appropriate heating loop
ports. Reference Figure 25.
Mounting
Bracket
Inlet Port
(Lowest Port)
— Page 15 —