Airxcel Aqua-Hot 600 Series, Installation Manual

Page: 16 / 63

Locations and Clearances
©Aqua-Hot® 600D Installation Manual p. 15
Mounting the Heat Exchangers
1. Cut out a 2.5” H x 10” W (7cm x 26cm) opening for each
heat exchanger outlet and cold-air return grate as shown
in Figure 27.
2. Mount each heat exchanger permanently into place. There
are 4 tabs on both sides - see Figure 24.
3. Install the hot-air outlet and cold-air return grate.
A minimum of supply ventilation cross-sectional area of at
least 29in
2
(74cm
2
) must be supplied to each heat exchanger.
If the toe-kick area is inadequate to house a heat exchanger
for regular installation, a plenum assembly may be purchased
to redirect air via ducting. Refer to Figure 26 & 28.
1 2 3 4 5
1. Hot Air Outlet Vent
2. Air Ducting Hose
3. Plenum
4. Cozy Heat Exchanger
5. Toe Kick Board
Mounting the Heat Exchangers
Figure 27
Figure 26
Figure 28
NOTE: When wiring the heat exchangers in parallel, the
main 18-gauge wire is split to allow the heat exchanger
wires to combine with the main wire to be powered or
grounded, respectively.
Figure 29
- (Ground) Black Wires
+ (Positive) Red Wires
NOTE: A return air register may not be required. However,
adequate return air must be provided to each particular
heat exchanger. This means that the total cross-sectional
area of the return air opening must be equal to or greater
than the cross-sectional area of the hot air outlet opening of
the heat exchanger.