INSTALLATION INSTRUCTIONS
Gas Furnace: (F/G)9MVT, (F/G)9MXT, (F/G)9MXE
42
440 01 4001 05
Specifications subject to change without notice.
Figure 48
Vent Terminations
12 IN. (305 MM) MIN. SEPARATION
BETWEEN BOTTOM OF
COMBUSTION AIR AND
BOTTOM OF VENT.
MAINTAIN 12 IN. (305 MM)
CLEARANCE ABOVE
HIGHEST ANTICIPATED
SNOW LEVEL OR GRADE,
WHICHEVER IS GREATER.
COMBUSTION-AIR
(ELBOW PARALLEL TO WALL)
OPTIONAL
BRACKET
COUPLING
A13078B
A13078C
OVERHANG
12 IN. (305 MM) MIN. GROUND
LEVEL OR ANTICIPATED SNOW LEVEL
EXHAUST
CLEARANCE TO OVERHANG PER CODE
Figure 49
Combustion Air and Vent Pipe Termination for Direct Vent (2
−
Pipe) System
A13077
¾
¾
12
in. (305mm) min. separation
between bottom of combustion
air and bottom of vent (Typ.)