9
PLUG
CAP
COLLECTOR BOX 
DRAIN TUBE (BLUE & 
WHITE STRIPED)
INDUCER HOUSING 
(MOLDED) DRAIN 
UBE (BEHIND 
COLLECTOR BOX 
DRAIN TUBE)
COLLECTOR BOX 
TUBE (PINK)
COLLECTOR BOX 
DRAIN TUBE (BLUE)
COLLECTOR BOX 
TUBE (GREEN  
ROUTES BEHIND 
INDUCER)
FIELD-INSTALLED 
FACTORY-SUPPLIED 
DRAIN TUBE 
COUPLING (LEFT 
DRAIN OPTION)
FIELD-INSTALLED 
FACTORY-
SUPPLIED 
DRAIN TUBE
FIELD-INSTALLED 
FACTORY-
SUPPLIED 
½ - IN. CPVC STREET 
ELBOWS (2) FOR 
LEFT DRAIN OPTION
FIELD- INSTALLED 
FACTORY-
SUPPLIED 
DRAIN TUBE 
COUPLING (LEFT 
DRAIN OPTION)
CONDENSATE 
A07274
Fig. 7 -- Factory --Shipped Trap Location
(Shown with Blower Access Panel Removed)
1. Collector Box Drain Tube
Connect collector box drain tube (blue label) to
condensate trap.
NOTE: On 17--1/2--in. (444.5mm) wide furnaces ONLY, cut
tube between corrugated sections to prevent kinks.
2. Inducer Housing Drain Tube
a. Remove and discard LOWER (molded) inducer housing
drain tubewhich was previouslyconnected tocondensate
trap.
b. Use inducer housing drain extension tube (violet label
and factory-- supplied in loose parts bag) to connect
LOWER inducer housing drain connection to
condensate trap.
c. Determine appropriate length, then cut and connect tube.
d. Clamp tube to prevent any condensate leakage.
3. Relief Port Tube
a. Connect relief port tube (green label) to condensate trap.
b. Extend this tube (if required) by splicing to small
diameter tube (factory--supplied in loose parts bag).
c. Determine appropriate length, then cut and connect tube.
Condensate Trap Field Drain
Attachment
Refer to Condensate Drain section for recommendations and
procedures.
PLUG
CAP
COLLECTOR BOX 
DRAIN TUBE (BLUE & 
WHITE STRIPED)
INDUCER HOUSING 
(MOLDED) DRAIN 
TUBE (VIOLET)
COLLECTOR BOX 
TUBE (PINK)
COLLECTOR BOX 
DRAIN TUBE (BLUE)
COLLECTOR BOX 
TUBE (GREEN)
CONDENSATE 
A07281
Fig. 8 -- Alternate Tra p Location
Pressure Switch T
ubing
The LOWER collector box pressure tube (pink label) is factory
connected to the pressure switch and should not require any
modification.
NOTE: See Fig. 7 or 8 or tube routing label on main furnace
door to check for proper connections.
Upper Collector Box and Inducer Housing (Unused)
Drain
Connections
Upper Collector Box Drain
Connection
Attached to the UPPER collector box drain connection is a
factory--installed corrugated, plugged tube (blue and white
striped label). This tube is plugged to prevent condensate leakage
in this application. Ensure this tube is plugged.
NOTE: See Fig. 7 or 8 or tube routing label on main furnace
door to check for proper connections.
Upper Inducer Housing Drain
Connection
Attached to the UPPER (unused) inducer housing drain
connection is a cap and clamp. This cap is used to prevent
condensate leakage in this application. Ensure this connection is
capped.
NOTE: See Fig. 7 or 8 or tube routing label on main furnace
door to check for proper connections.
Condensate Trap Freeze Pr
otection
Refer to Condensate Drain Protection section for
recommendations and procedures.
58MVC