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Installation & Operation Manual
2 Venting (continued)
15
Condensing Vent Options: CAT II & IV
(CAT II vent options A, B, & C requires an adapter kit - see page 14)
A
CAT II
requires an
adapter kit.
See page 14.
Vertical vent with combustion air from
equipment room - see page 16.
CAT II/IV
D
Sidewall termination with combustion air from
equipment room - see page 17.
CAT IV
B
CAT II
requires an
adapter kit.
See page 14.
Vertical Direct Vent installation with rooftop
combustion air inlet - see page 16.
CAT II/IV
E
Horizontal Direct Vent installation with sidewall
combustion air inlet - see page 18.
CAT IV
C
CAT II
requires an
adapter kit.
See page 14.
Vertical DirectAire installation with sidewall
combustion air inlet - see page 17.
CAT II/IV
F
Horizontal DirectAire installation with vertical
combustion air inlet - see page 18.
CAT IV