Trane GAF2A0A36S31EE Installer's Manual page 13

6.3 Minimum Clearance Table
6.4 Non Ducted Applications
!
HAZARDOUS VAPORS!
with a non-ducted return in the same closet, alcove, or utility
room as a fossil fuel device. Hazardous vapors can be distributed
throughout the conditioned space and equipment damage can
result.
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 clear-
ances to combustible materials and service
access must be observed (see outline draw-
ing).
• This area may also be used for other purpos-
es, 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.
6.5 Ducted Applications
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 ac-
cess must be observed (see outline drawing).
CAUTION
Do not install an air handler
Minimum Unit Clearance Table
To Combustible Material
(Required)
Sides 0"
Front 0"
Back 0"
Inlet Duct 0"
Outlet Duct 0"
Supply Duct
Plenum
Accessory
with safety guard
Supply Duct
Return Duct
Service Clearance
(Recommended)
2"
21"
0"
N/A
N/A
Non-Ducted
Return
Ducted Return
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