Manual 2100-579A
Page 4 of 41
INSTALLATION and OPERATING INSTRUCTIONS
EQUIPMENT SELECTION
An accurate heating load calculation must be conducted
using American Society of Heating, Refrigeration
and Air Conditioning Engineers (ASHRAE) or Air
Conditioning Contractors of America (ACCA) manuals.
Do not
add a large safety factor above the calculated
value. If the calculated heating load requirement
exceeds the heating capacity rating of a given model,
use only the next larger size available. Never increase
by any more than absolutely necessary based upon
available equipment
heating capacities
. Always select
based upon heat capacity (output), never use input
capacities.
NOTE: It is the personal responsibility and
obligation of the purchaser to contract a
qualified installer to assure that installation
is adequate and is in conformance with
governing codes and ordinances.
LOCATING THE FURNACE
When installing the furnace be sure to provide adequate
space for easy service and maintenance. Locate the
furnace as close to the chimney as practical, giving
consideration to the accessibility of the oil burner,
controls, and blower for service. Allow a minimum
of 24 inches at front of furnace for servicing oil
burner. Allow adequate room for filter and blower
maintenance.
Clearance from combustible material as
stated on the furnace and repeated in Table 1 must be
maintained
. For damp basement installations, a raised
concrete pad is recommended. This will help keep the
bottom of the furnace dry and reduce the risk of rusting.
An oil burner must have a generous supply of
combustion air to operate properly. The flow of
combustion and ventilating air must not be obstructed
from reaching the furnace. See “Combustion Air
Requirements” section.
The furnace area must be kept clear and free of
combustible materials, gasoline and other flammable
vapors and liquids.
This unit is not designed for mobile home or trailer
installations. Always install furnace in a level position.
For the first three (3) feet from plenum. After three (3) feet, no clearance required.
C
Combustible flooring
NC
Noncombustible floor
*
Maintained on one side or the other to achieve filter access and/or blower service.
TABLE 1
MINIMUM CLEARANCES
Model
Minimum Installation Clearances — Inches
Minimum Service
Clearaces
Furnace
Plenum
Duct
Flue
Pipe
Floor
Front
Back
Sides
Front
Back
Sides Sides
Top
FLF075V42A
FLR075V42A
FLR100V48A
FLR100V60A
FLR130V60A
6
6
6
6
6
18
18
18
18
18
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
9
9
9
9
9
NC
NC
NC
NC
NC
24
24
24
24
24
24
24
24
24
24
18 *
18 *
18 *
18 *
18 *
