Modify tube as described below:
1. Disconnect collector box pressure tube (pink label) attached to
High Pressure Switch.
2. Use smaller diameter tube (factory-supplied in loose parts
bag) to extend tube disconnected in item 1.
3. Route extended tube:
a. Behind inducer housing.
b. Between blower shelf and inducer housing.
4. Determine appropriate length, cut, and reconnect tube to High
Pressure Switch connection labeled COLLECTOR BOX.
CONDENSATE TRAP FREEZE PROTECTION
Refer to Condensate Drain Protection section for recommenda-
tions and procedures.
CONSTRUCT A WORKING PLATFORM
Construct working platform where all required furnace clearances
are met. (See Fig. 3 and 11.)
UNIT MAY NOT OPERATE
Failure to follow this caution may result in intermittent unit
operation
The condensate trap MUST be installed below furnace. See
Fig. 5 for dimensions. The drain connection to condensate
trap must also be properly sloped to an open drain.
NOTE:
Combustion-air and vent pipes are restricted to a mini-
mum length of 5 ft. (See Table 7.)
NOTE:
A 12-in. minimum offset pipe section is recommended
with short (5 to 8 ft) vent systems. This recommendation is to
reduce excessive condensate droplets from exiting the vent pipe.
(See Fig. 11 or 35.)
Step 5—Horizontal Right (Supply-Air Discharge)
Applications
In a horizontal right furnace application, the blower is located to
the left of the burner section, and conditioned air is discharged to
the right.
MINOR PROPERTY DAMAGE
Failure to follow this caution may result in minor property
damage.
Local codes may require a drain pan under entire furnace and
condensate trap when a condensing furnace is used in attic
application or over a finished ceiling.
NOTE:
In Canada, installations shall be in accordance with
current NSCNGPIC Installation Codes and/or local codes.
NOTE:
The auxiliary junction box (J-Box) MUST be relocated to
opposite side of furnace casing. (See Fig. 12.) See Electrical
Connection section for J-Box relocation.
CONDENSATE TRAP LOCATION
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 12.
To relocate condensate trap from the blower shelf to desired
location, perform the following:
1. Remove 3 tubes connected to condensate trap.
2. Remove trap from blower shelf by gently pushing tabs inward
and rotating trap
Fig. 10—Horizontal Left Tube Configuration
A01029
CONDENSATE
TRAP
AUXILIARY
"
J
"
BOX
PLUG
CAP
INDUCER HOUSING
DRAIN TUBE (VIOLET)
COLLECTOR BOX
DRAIN TUBE (BLUE)
COLLECTOR BOX TUBE (PINK)
RELOCATE TUBE BETWEEN BLOWER SHELF AND INDUCER HOUSING FOR
040, 060, AND 080 HEATING INPUT FURNACES
COLLECTOR BOX
EXTENSION TUBE
COLLECTOR BOX
DRAIN TUBE
(BLUE AND WHITE STRIPED)
DRAIN TUBE COUPLING
COLLECTOR BOX
TUBE (GREEN)
COLLECTOR
BOX EXTENSION
DRAIN TUBE
11
