40
10. Attach the 90° end of the molded
hose
to the collector box. Clamp
the hose tight with white nylon
clamp. Then attach the long end of
the molded hose to the 45° elbow
molded into the top of the trap
assembly. Clamp the hose tight
with white nylon clamp.
IMPORTANT:
Tighten all clamp
connections with a pair of pliers
and check for leaks after
conversion is complete.
11.
IMPORTANT:
There are two
options when choosing a height for
the condensate riser:
CONDENSATE OVERFLOW: With
a 1
3
⁄
4
inch riser installed above the
tee, a blocked drain will result in
overflow from the riser.
FURNACE SHUTDOWN: To
cause the furnace to shut down
when a blocked drain is present,
install a riser which is a minimum
of 5
1
⁄
2
”. If the furnace is installed in
an attic, crawlspace or other area
where freezing temperatures may
occur, the furnace drain can freeze
while shut off for long periods of
time. Provisions must be made to
prevent freezing of condensate
(see Figure 2).
Use a solvent cement that is
compatible with PVC material.
NOTE:
See location requirements and
combustion section for additional
recommendations.
L
FILLING THE TRAP
FILL THE TRAP ASSEMBLY WITH
WATER BEFORE OPERATING THE
FURNACE.
Do this by removing the
drain hose from the trap or from the
connection to the secondary coil.
Pour about a cup of water into the
vent trap. Any excess water flows into
the house drain when the trap is full.
NOTE:
Fill the trap assembly with
water every heating season.
