5894307-UIM-B-0920
12
Johnson Controls Ducted Systems
CONDENSATE DRAIN TERMINATION
Use a condensate sump pump if required by local codes or if no indoor
floor drain is available. The condensate sump pump must be approved
for use with acidic condensate.
IMPORTANT:
Condensate must be disposed of correctly. Follow
local plumbing or wastewater codes. The drain line must maintain a
1/4 in./ft (20 mm/m) downward slope to the drain.
Figure 15:
Typical - Condensate Drain, Vertical Installation
ELBOW
STRAIGHT
HOSE
ADAPTOR
HOSE
CONDENSATE
TRAP BRACKET
CONDENSATE
TRAP
CONNECT HOSE TO
FLOOR DRAIN OR
CONDENSATE PUMP
HORIZONTAL
LEFT
HORIZONTAL
RIGHT
UPFLOW - LEFT SIDE DRAIN
UPFLOW - RIGHT SIDE DRAIN
HOSE
CONDENSATE
TRAP
CONNECT
HOSE TO
FLOOR DRAIN
OR
CONDENSATE
PUMP
A1127-001
CAUTION
It is possible for condensation to form inside the combustion air
(intake) pipe in the summer months if significant length of combus-
tion air pipe passes through conditioned space. This problem can
be averted by installing the supplied vent drain and drain hose
located in the loose parts bag. The intake drain hose is to be
installed by connecting it to the inlet pipe coupling and to the collec-
tor box as shown in Figures 16 and 17. The drain hose must not
sag or droop after it is installed. If glue is used when connecting the
intake pipe to the intake coupling, the drain opening in the vent
drain must not be plugged. If the intake drain is used, the bird
screen
cannot
be installed. This is only approved for upflow and
horizontal applications when the intake pipe is located on the top of
the furnace. This is true for all long horizontal venting in any furnace
configuration. This will keep condensate from entering the furnace.
WARNING
Liquid anti-freeze will cause damage to internal plastic parts of this
furnace.
DO NOT attempt to winterize the furnace using liquid
anti-freeze.
WARNING
DO NOT terminate the condensate drain in a chimney, or where the
drain line may freeze. If the drain line will be exposed to temperatures
below freezing, adequate measures must be taken to prevent the
drain line from freezing. Failure to provide proper protection from
freezing can result in improper operation or damage to the equipment
and possible property damage. When exposed to temperatures
below freezing, use of a 3 to 6 watt per foot at 115 VAC, 40°F (4.4°C)
self-regulating, shielded and waterproof heat tape is recommended
on the drain line outside the furnace.
DO NOT trap the drain line at any location. The furnace has an exter-
nal condensate trap.
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