THB & TLB
Oil Furnaces
–
Furnace Manual
670-000-005/1010
3
1
Prepare furnace location
Pre-installation checklist
Verify code compliance
Local, state, provincial, and national codes, laws, regulations
and ordinances
NFPA-31, Installation of Oil-Burning Equipment
National Electrical Code
All local codes and/or regulations take precedence over the
instructions in this manual and should be followed accordingly.
THB & TLB furnaces, their burners and controls met
safe lighting and other performance criteria when
furnace underwent tests specified in Underwriters
Laboratories Standard UL727.
Check location and furnace specifications
Furnace
heating
capacity
Space is large enough to provide required clearances
Verify the installation will meet the requirements of this manual:
Clearances (page 3)
Combustion/ventilation air openings (page 4)
Supply air duct (page 8)
Return air duct (page 8)
Vent system (page 11)
Fuel oil piping (page 12 plus burner manual)
Electrical connection (page 12)
Clearances
Minimum clearance to combustible materials
1.
Install the furnace, ductwork and vent such that no combustible
surface is closer than listed in Table 1.
Flue pipe clearances must take precedence over
jacket clearances (listed below).
Service accessibility clearances
1.
Provide no less than the minimum clearances given in Table 1 to
ensure the furnace can be properly operated, serviced and
maintained.
Always apply whichever clearance is
LARGER
– combustible
construction or service accessibility.
Flooring and foundation
Flooring
THB & TLB furnaces are approved for installation on combustible
flooring, but must never be installed on carpeting.
Do not install furnace on carpeting even if foundation
is used. Fire can result, causing severe personal
injury, death or substantial property damage.
Foundation
1.
Provide a solid brick or minimum 2-inch concrete foundation pad
if any of the following is true:
•
The floor can become flooded.
•
The furnace mounting area is not level.
Residential garage installations
Take the following special precautions when installing the furnace in
a residential garage. Il the furnace is located in a residential garage:
•
Mount the furnace a minimum of 18 inches above the floor
of the garage.
•
Locate or protect the furnace so it cannot be damaged by a
moving vehicle
.
Table 1
Minimum
clearances
To combustible
const ruction
For service
accessibility
To combustible
construction
For service
acces sibilit y
Top of plenum to ce iling
1"
1"
Above warm air duct within 6 fee t of furna ce
1"
1"
Fron t of furn ace
1 8" (alcove)
18"
18" (alcove)
18"
Flu e p ipe (or barometric d. c.) to any surface
9" (note 1)
18"
9" (note 1)
18"
Rea r of fu rnace
0"
0"
Side of furna ce
0"
0"
Warm air plenum to wall
1"
1"
Comb ustible floor
0"
0"
Minimum clearances from furnace, ductwork and vent
Note 1 : Single wall metal vent (or baromet ric draft control) can be no closer than 9 inches t o any combustible surfac e. Apply requirement s of NFPA 31
and local codes to reduce clearance using double-wall vent pipe and/or prot ective insulation between the flue pipe or barometric draf t control and
combustible surfaces. Minimum clearance when using Type L double-wall vent pipe is 6”.
Service accessibility cleara nce s are recommen ded
mi nimum dimensions to al low access to furn ace
comp onents (mo tor, blower, filters, etc.).
THB Furnac es
TLB Furnace s
Содержание THB High Boy series
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