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Figure 2. Horizontal Installation
Suspended in Attic or Crawl Space
Upflow and Horizontal Furnaces
UPFLOW APPLICATION
TOP
LEFT
SIDE
BOTTOM
Table 3. Minimum Clearances to Combustible Material
6
Note: Edge or Line
Contact is Permissible
Type "B" Vent
Coil Plenum
Electrical
Supply
Connection
Figure 3. Horizontal Installation
HORIZONTAL APPLICATION
RIGHT
SIDE
INSTALLATION CLEARANCES
Vent Connector
Type
LEFT SIDE
RIGHT SIDE
VENT
BACK
BOTTOM
TOP
FRONT
†
Allow 24" minimum clearance for servicing.
The recommended clearance is 36".
Gas Inlet
Combustible
Platform
Louver Door
on a Platform
SIDE
SIDE
Standard Single
Type B-1 Double
Wall Metal Vent
Wall Metal Vent
0"
0"
0"
0"
6"
1"
0"
0"
0"
0"
1"
1"
†
†
4"
4"
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