Condensate Drain - International comfort products A Series Installation Instructions Manual

*Minimum dimensions of 3‐in. (76mm)
NOTE: Use any of the following combinations of openings:
A & B, C & D, D & E, F & G
Fig. 8 - - Air for Combustion, Ventilation, and Dilution for
Outdoors
* Minimum opening size is 100 sq in. (64516 sq. mm) with
minimum dimensions of 3‐in. (76mm)
{ Minimum of 3‐in. (76mm) when type‐B1 vent is used.
Fig. 9 - - Air for Combustion, Ventilation, and Dilution from
Indoors
CONDENSATE TRAP
Condensate Trap
The condensate trap is a field installed trap. A bag of loose parts
needed to construct the trap is provided with the furnace. The
assembled components of the trap (Fig. 16 and Fig. 17) are shown
with assembly instructions in the Installation section of this
manual. A float switch is included and must be installed in the trap
assembly and connected to the factory- -provided wire harness
connections before furnace will operate.
WARNING
!
CARBON MONOXIDE
PROPERTY DAMAGE HAZARD
Failure to follow this warning could result in property
damage, personal injury or death.
The condensate trap provided with furnace must be installed
per the furnace installation instructions. Do not modify the
trap beyond what is permitted or substitute a different trap.
440 01 4601 01
L12F012
L12F013
POISONING AND
Specifications subject to change without notice.
NOTICE
The condensate trap extends below the underside of the casing
in the horizontal position. A minimum of 15- -in. of clearance
is required between the casing side and the furnace platform
for the trap to extend out of the casing in the horizontal
position. Allow at least 1/4- -in. per foot of slope down.
CONDENSATE DRAIN CONNECTION
CAUTION
!
FROZEN AND BURST WATER PIPE HAZARD
Failure to protect against the risk of freezing may result in
property damage.
Special precautions MUST be made if installing furnace in an
area which may drop below freezing. This can cause improper
operation or damage to equipment. If furnace environment has
the potential of freezing, the drain trap and drain line must be
protected. The use of accessory electric heat tape and/or RV
antifreeze is required for these installations.
CAUTION
!
PROPERTY DAMAGE HAZARD
Failure to follow this caution may result in burst water pipes
and/or property damage.
If a condensate pump is installed, a plugged condensate drain
or a failed pump may cause the furnace to shut down. Do not
leave the home unattended during freezing weather without
turning off water supply and draining water pipes or otherwise
protecting against the risk of frozen pipes.
DO NOT trap condensate water in the drain line in any other
location than at the condensate drain trap supplied with the furnace.
If possible, DO NOT route the drain line where it may freeze. The
drain line must terminate at an inside drain to prevent freezing of
the condensate and possible property damage.
Special precautions MUST be made if installing furnace in an area
which may drop below 32_ F (0_ C). This can cause improper
operation or damage to the equipment. If the furnace environment
has the potential of freezing, the drain trap and drain line must be
protected. In areas where the temperature may be below 32_ F (0_
C), a Condensate Freeze Protection heat tape kit is required. Refer
to the Accessory section of the Specification for current kit
number. A self- -regulating, shielded and waterproof heat tape rated
at 3 to 6 watt per foot (10 to 20 watt per meter) at 115 volt, 40_F
(4_C) may be used to provide freeze protection of the remaining
condensate drain line. Wrap the drain trap and drain line with the
heat tape and secure with appropriate plastic ties. Follow the heat
tape manufacturer's recommendations. Prime the trap before
furnace operation.
The condensate drain line must be supported and/or secured per
local codes. Supports and clamps should be spaced to prevent the
drain line from sagging or being dislocated from the furnace or
termination point. In the absence of local codes, consult the current
edition of the National Standard Plumbing Code, in the U.S.
An indoor coil condensate drain or humidifier drain can be
connected to the external furnace condensate drain provided:
a. All condensate piping is at least 3/4-in. PVC and there is
a relief tee at the top of condensate drain piping (Fig. 11).
b. Connect the coil condensate drain downstream of the
furnace condensate trap.
11