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Wiring the Heat Exchangers:
1.
Run two 18-gauge wires, red for (+) and black for (-),
from each particular heating zone's heat exchanger to
the electronic controller. Reference Figure 22.
2.
Label the wires indicating the heating zone they pertain
to (e.g., Living Room, Bathroom, Bedroom, etc.).
3.
Insert all heat exchanger wires into the appropriate ter-
minal/heating zone location on the electronic control-
ler. Reference Figure 21 and Appendix A.
4.
Wire all heat exchangers in a zone in-series. Reference
Figure 23 and Appendix A.
5.
Connect all electronic controller wires to the positive
and negative leads of the heat exchanger. Reference
Figure 22.
NOTE: Tolerance
+/- .030
3.63 in.
Figure 22
Section 2: Hydronic Heating System
+ (Positive) Red Wires
To Aqua-Hot's Terminal
14.44 in.
13.06 in.
© 2008 Aqua-Hot
®
450-DE/DM Hydronic Heating System Installation Manual
Electronic Controller Board
Reset Button
Header
1
Wire
Loom
1
Wire
Loom
(Secondary
Power Source)
12 Volt-DC Screw
Terminal
(Primary
Power Source)
12 Volt-DC Screw
Terminal
Ground Wire
Screw Terminal
Figure 21
Block
- (Ground) Black Wires
To a chassis ground source
Mounting Tab
Terminal Strip/Plug
Wire
Loom
J2
J3
1
J1
Wire
Loom
1
J4
Pin Jumper
6.44 in.
— Page 13 —
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