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WINTERIZATION
[]NIT
AND PROPERTY
DAMAGE
HAZARD
Failure
to follow
this caution may result in unit component
or
property
damage.
If the furnace
is installed
in an unconditioned
space where the
ambient
temperatures
may be 32 ° F (0 ° C) or lower, freeze
protection
measures
must be taken to prevent
minor property
or product
damage.
Since
the furnace
uses a condensing
heat exchanger,
some water
will accumulate
in the unit as a result of the heat transfer
process.
Therefore,
once it has been
operated,
it cannot
be turned
off and
left off for an extended
period
of time when
temperatures
will
reach
32°F
(0°C)
or
lower
unless
winterized.
Follow
these
)rocedures
to winterize
your furnace:
7. Pour
1 quart
of anti-freeze
solution
into the funnel/tube.
Antifreeze
should
run through
the inducer
housing,
overfill
condensate
trap and flow to an open drain.
8. If
a
condensate
pump
is
used,
check
with
pump
manufacturer
to verify pump
is safe for use with antifreeze
used.
Allow
pump
to start and pump
anti-freeze
to open
drain.
9. Remove
funnel and tube from collector
box.
10. Replace
plug in collector
box.
11. Remove
the other plug and repeat steps 4- 10.
12. Replace
main door.
13. When
furnace
is re-started,
flush
condensate
pump
with
clear water
to check
for proper
operation
before
re-starting
furnace.
14. Propylene
glycol
need
not be removed
before
re-starting
furnace.
UNIT
COMPONENT
DAMAGE
HAZARD
Failure
to follow
this caution
may
result
in damage
to the
furnace
and other property
damage.
Do not use ethylene
glycol
(Automotive
antifreeze
coolant
or
equivalent).
Failure of plastic components
may occur.
1. Obtain
propylene
glycol
(RV/swimming
pool
antifreeze
or
equivalent).
2. Turn off gas and electrical
supplies
to your furnace.
ELECTRICALSHOCK
HAZARD
Failure
to follow
this warning
could
result
in personal
iniury or death.
Turn
off electrical
power
supply
to your
furnace
and
install
lockout
tag before
removing
the access doors
to
service or perform
maintenance.
3. Remove
furnace
control
compartment
door.
4. Remove
one of the unused
rubber
plugs in the port on the
collector
box opposite
the condensate
trap. See Fig 30.
5. Connect
a field supplied
3/8-in.
(9.5-mm)
ID tube
to the
open port on the collector
box
6. Insert a field supplied
funnel into the tube.
Fig. 30 - Winterizing
Furnace
A11392
12
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