18-GJ06D2-2E-EN
17
Ducted and Non-Ducted Applications
Table 4.
Non-Ducted Applications
C
CA
AU
UT
TIIO
ON
N
H
HA
AZ
ZA
AR
RD
DO
OU
US
S V
VA
AP
PO
OR
RS
S!!
F
Fa
aiillu
urre
e tto
o ffo
ollllo
ow
w tth
hiiss C
Ca
au
uttiio
on
n cco
ou
ulld
d rre
essu
ulltt iin
n
p
prro
op
pe
errtty
y d
da
am
ma
ag
ge
e o
orr p
pe
errsso
on
na
all iin
njju
urry
y..
H
Ha
azza
arrd
do
ou
uss v
va
ap
po
orrss c
ca
an
n b
be
e d
diissttrriib
bu
utte
ed
d tth
hrro
ou
ug
gh
ho
ou
utt tth
he
e
c
co
on
nd
diittiio
on
ne
ed
d ssp
pa
acce
e a
an
nd
d e
eq
qu
uiip
pm
me
en
ntt d
da
am
ma
ag
ge
e c
ca
an
n
rre
essu
ulltt.. D
Do
o n
no
ott iin
nsstta
allll a
an
n a
aiirr h
ha
an
nd
dlle
err w
wiitth
h a
a n
no
on
n--
d
du
ucctte
ed
d rre
ettu
urrn
n iin
n tth
he
e ssa
am
me
e ccllo
os
se
ett,, a
allcco
ov
ve
e,, o
orr u
uttiilliitty
y
rro
oo
om
m a
as
s a
a ffo
osss
siill ffu
ue
ell d
de
ev
viicce
e..
Non-Ducted Return Installations:
•
Installation in a closet, an alcove, or a utility room without a
return duct requires the use of a plenum accessory kit as it uses
the area space as a return air plenum. Minimum clearances to
combustible materials and service access must be observed (see
outline drawing).
•
This area may also be used for other purposes, including an
electric hot water heater, but in no case shall a fossil fuel device be
installed and/or operated in the same closet, alcove, or utility
room.
•
Review local codes to determine limitations if the unit is installed
without a return air duct.
Suppl y Du ct
Ple n u m
Accessor y w ith
S a fe ty Gu a rd
No n -Du cte d
Re tu rn
Table 5.
Ducted Return Installations.
Ducted Return Installations:
•
Installation in an attic, garage, or crawl space with ducted supply
and return air is appropriate. Minimum clearances to combustible
materials and service access must be observed (see outline
drawing).
Suppl y Du ct
Re tu rn Du ct
Ducted Re tu rn
