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HORIZONTAL RIGHT
(SUPPLY- -AIR DISCHARGE) APPLICATIONS
A horizontal right furnace application is where furnace blower is
located to the left of combustion and controls section of furnace,
and conditioned air is discharged to the right.
CAUTION
!
PROPERTY DAMAGE HAZARD
Failure to follow this caution may result in property
damage.
Local codes may require a drain pan under entire furnace
and condensate trap when a condensing furnace is used in
an attic application or over a finished ceiling.
NOTE:
In Canada, installations shall be in accordance with
current NSCNGPIC and/or local codes.
NOTE: The auxiliary junction box (J- -box ) MUST be relocated
to opposite side of furnace casing. (See Fig. 14.) See Electrical
Connection section for J- -box relocation.
Condensate Trap Location
COLLECTOR BOX
DRAIN TUBE (BLUE)
CAP
COLLECTOR BOX
DRAIN TUBE (BLUE &
WHITE STRIPED)
INDUCER HOUSING
(MOLDED) DRAIN
TUBE (VIOLET)
COLLECTOR BOX
EXTENSION TUBE
Fig. 14 - - Horizontal Right Tube Configuration
The condensate trap must be removed from the factory- -installed
blower shelf location and relocated in selected application location
as shown in Fig. 2 or 14.
To relocate condensate trap from the blower shelf to desired
location, perform the following:
1. Remove three tubes connected to condensate trap.
2. Remove trap from blower shelf by gently pushing tabs
inward and rotating trap.
WARNING
!
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in personal
injury or death.
Casing hole filler cap must be installed in blower shelf hole
when condensate trap is relocated to prevent combustion
products being drawn in from appliances in the equipment
room.
PLUG
COLLECTOR BOX
TUBE (GREEN)
COLLECTOR BOX TUBE (PINK)
AUXILIARY "J" BOX
RELOCATED HERE
CONDENSATE
TRAP
A07279
3. Install casing hole filler cap (factory- -supplied in loose parts
bag) into blower shelf hole where trap was removed.
4. Install condensate trap into right- -hand side casing hole by
inserting tube connection tabs through casing hole and
rotating until tabs snap into locking position.
5. Fill unused condensate trap casing holes with plastic filler
caps (factory- -supplied in loose parts bag).
LEVEL (0")
FRONT
TO 1/2" (13mm)
MIN 1/4" (7mm)
MAX
TO 1/2" (13mm)
UPFLOW OR DOWNFLOW
Fig. 15 - - Proper Condensate Drainage
Condensate Trap Tubing
NOTE: See Fig. 14 or tube routing label on main furnace door to
check for proper connections.
1. Collector Box Drain Tube
a. Remove factory- -installed plug from LOWER collector
box drain tube (blue and white striped label).
b. Install removed clamp and plug into UPPER collector
box drain tube (blue label) which was previously
connected to condensate trap.
c. Connect LOWER collector box drain tube (blue and
white striped label) to condensate trap. Tube does not
need to be cut.
d. Clamp tube to prevent any condensate leakage.
2. Inducer Housing Drain Tube
a. Remove factory- -installed cap and clamp from
LOWER inducer housing drain connection.
b. Remove and discard UPPER (molded) inducer
housing drain tube which was previously
connected to condensate trap.
c. Install cap and clamp on UPPER inducer
housing drain connection where molded drain
tube was removed.
d. Use inducer housing drain extension tube (violet
label and factory- -supplied in loose parts bag) to
connect
LOWER
connection to condensate trap.
e. Determine appropriate length, cut, and connect
tube to condensate trap.
f. Clamp tube to prevent any condensate leakage.
3. Relief Port Tube
Refer
to
Pressure
recommendations and procedures.
Condenste Trap Field Drain Attachment
Refer to Condensate Drain section for recommendations and
procedures.
Pressure Switch Tubing
One collector box pressure tube (pink label) is factory connected to
the pressure switch for use when furnace is installed in UPFLOW
or HORIZONTAL LEFT applications.
disconnected and used for the condensate trap relief port tube. The
other collector box pressure tube (green label) which was factory
connected to the condensate trap relief port connection MUST be
connect
to
the
pressure
HORIZONTAL RIGHT applications.
15
FRONT
HORIZONTAL
MAX
A02146
inducer
housing
drain
Switch
Tubing
section
This tube MUST be
switch
in
DOWNFLOW
for
or
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