Carrier 58MVP Installation, Start-Up, And Operating Instructions Manual page 26

FIELD-SUPPLIED
2-IN. DIAMETER
PVC 90° ELBOW
COMBUSTION-AIR DISC
(FACTORY-SUPPLIED IN
LOOSE PARTS BAG)
Length of Straight Pipe Portion of
Combustion-Air Inlet Pipe Assembly (In.)
CASING WIDTH
17-1/2
21
24-1/2
Fig. 28—Combustion-Air Inlet Pipe Assembly
12 " MIN
VENT PIPE
HORIZONTAL TO ROOF
VERTICAL TO ROOF
NOTE: A 12-In. minimum horizontal 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.
Fig. 29—Short Vent (5 to 8 Ft) System
FIELD-SUPPLIED
2-IN. DIAMETER
PVC PIPE
A
A96211
A
8-1/2 ± 1/2
10-1/2 ± 1/2
12 ± 1/2
VENT PIPE
12 " MIN
UNIT DAMAGE HAZARD
Failure to follow this caution may result in unit component
damage.
Inducer housing outlet cap must be installed and fully seated
against inducer housing. Clamp must be tightened to prevent
any condensate leakage.
3. Install pipe support (factory-supplied in loose parts bag) into
selected furnace casing vent pipe hole. Pipe support should be
positioned at bottom of casing hole.
UNIT DAMAGE HAZARD
Failure to follow this caution may result in unit component
damage.
Vent pipe must be installed and fully seated against inducer
housing internal stop. Clamp must be tightened to prevent any
condensate leakage.
NOTE: A 2-in. diameter pipe must be used within the furnace
casing. Make all pipe diameter transitions outside furnace casing.
4. Be certain that mating surfaces of inducer housing connection
elastomeric coupling, and 2-in. diameter vent pipe are clean
and dry. Assemble the elastomeric (rubber) vent coupling
(with 2 loose clamps) onto inducer housing connection. Insert
the 2-in. diameter vent pipe through the elastomeric (rubber)
26
A04163