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© 2008 Aqua-Hot
®
375-D Hydronic Heating System Installation Manual Rev. A
Living Room
Heat Exchanger
Fresh W
ater T
ank
Heat Exchanger
Bathroom Heat
Exchanger
Bedroom Heat
Exchanger
Living Room
Heat Exchanger
Kitchen Heat
Exchanger
Heating Loop #1
Heating Loop #2
Outgoing Plumbing Lines
Incoming Plumbing Lines
Heating Zone #1
Heating Zone #2
Heating Zone #3
section 3: Hydronic Heating system
Plumbing Requirements:
Once all heat exchangers have been mounted, formu-
late a plan for the routing of the plumbing lines from
each heating zone to the Aqua-Hot.
All plumbing lines should be laid as flat as possible,
and any extreme rises in height should be avoided to
eliminate any potential air-traps.
The kitchen and living room heat exchangers (typically
three) must be plumbed together
in-series
on “Heating
Loop 1.” Reference Figure 22.
The fresh water tank, bedroom, and bathroom heat
exchangers (typically 3) must be plumbed together
in-
series
on “Heating Loop 2.” Reference Figure 22.
Use 5/8 inch I.D. (Inside Diameter) plumbing lines for
both heating loops.
Use wide-sweeping elbows or “bend supports” when-
ever the plumbing lines may be susceptible to kinking
(i.e., 90° bends).
Figure 22
Summary of Contents for 375D
Page 1: ...2008 Aqua Hot Heating Systems Inc Installation Manual...
Page 38: ...Wiring Diagram Appendix A...
Page 40: ...Wire Gauge Information Appendix B...
Page 42: ...Antifreeze Types Appendix C...
Page 44: ...Antifreeze Mixture Water Quality Recommendations Appendix D...
Page 46: ...Antifreeze Terms and Mixture Ratio Appendix E...
