14
Plumbing
Drain Line
The ventilation portion of the Clean Air Furnace has two
drain pans for removing condensation, which may occur on
the heat recovery core during cold weather.
Piping
The hot water piping between the hot water tank and the
Clean Air Furnace should be new copper type, and should
not be treated with chemicals, sealant or anything else, that
will interfere with the purity of the potable water. Only non-
lead, low temperature solder is permitted for sealing copper
joints.
Where possible the length of pipe should not exceed 200'
total equivalent length. Any piping running through uncon-
ditioned space must be insulated to prevent heat loss, and
possible freezing of the line.
Look inside the furnace and locate the pump. Attach the
"Hot Water In" (Supply) to the pipe running to the pump.
Attach the "Hot Water Out" (Return) to the pipe running to
the coil. Do not reverse these lines, as this will cause the
unit to malfunction.
For piping conventional water heaters, connections to and
from the Clean Air Furnace to the water tank should be
made at the point where the pipes leave the tank vertically.
A "T" fitting used in each vertical line, with the Clean Air
Furnace piping connected to the horizontal side of this fit-
ting, will work best in avoiding air locks in the circulation
pump of the furnace.
*Note: Remove shipping block from underneath pump and
discard.
DRAIN
SPOUT
TAPE
THROUGH KNOCKOUT
TO DRAIN
TEE
CONNECTOR
DRAIN
SPOUT
2” (50 mm)
KNOCKOUT
KNOCKOUT
HRV Drain Line Diagram
Summary of Contents for CAF-D-L4A-36-P16
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