4
FURNACE LOCATION
IMPORTANT
Please read this entire manual and all labels before installing the furnace.
UNPACKING AND INSPECTION
It is the responsibility of the consignee of the unit to examine the packages for damage and, if found, to
note the same on the Carrier’s Bill of Lading.
The NH3 furnace is shipped in one package complete with oil burner, draft regulator, filter racks, air filters,
A/C Control Center (optional) and instruction manual. The LFR is shipped in two packages.
Caution: Remove shipping retaining bracket from blower before start-up.
HEAT LOSS
Before installation, verify the furnace output capacity meets the building heat loss requirements. A detailed
heat loss analysis is recommended.
INSTALLATION REGULATIONS
This unit should be installed in accordance with the regulations of the authority having jurisdiction. In
Canada the installation must conform to CSA Standard B139, "The Installation Code for Oil Burning
Equipment." In the United States, the National Fire Protection Association Standard NFPA 31 should be
followed. Check with provincial, state, or local codes concerning clearances, venting system
requirements and other regulations governing installation. Some codes may vary from the requirements
set forth in this manual.
FOUNDATION
To ensure the furnace is on a level foundation and above any possible dampness, a cement pad is
recommended.
CLEARANCES
The minimum clearances to combustible materials are as follows:
6"
Side
Rear
Top
Front*
Flue Pipe
Floor
NH-3
6”
6”
1”
24”
9”
Combustible
LFR
1”
2”
1”
16”
9”
Combustible
* Measured from the panel on which the burner is installed. Allow sufficient room for servicing.
FOR YOUR SAFETY: Do not store or use gasoline or flammable vapors and liquids in the vicinity of this or any
other appliance.
VENTING PRODUCTS OF COMBUSTION
CHIMNEYS
A negative overfire pressure should be maintained. Locate the furnace as close to the chimney or flue as
possible. The maximum draft is obtained by keeping elbows and pipe length to a minimum. Install the
flue pipe with a gradual rise of at least 1/4" per foot from the furnace to the flue. Do not extend the flue
pipe beyond the inside wall of the chimney. Refer to Table 11(a) and Table 11(b) for proper chimney flue
sizing and Fig. 23 for optimizing chimney draft.
The owner shall provide a chimney constructed to comply with the following specifications:
(a) The chimney must be absolutely smoke tight throughout its entire length, and must extend at least
three feet (3') above a flat roof or two feet above the ridges of peak roofs.
Содержание LFR-72
Страница 17: ...16 FIG 10 TYPICAL OIL TANK PIPING INSTALLATIONS...
Страница 18: ...17 FIG 11 DIMENSIONS CONTROL LOCATION NH3...
Страница 19: ...18 FIG 12 LFR SET UP...
Страница 20: ...19 FIG 13 STANDARD WIRING SCHEMATIC DIRECT DRIVE...
Страница 21: ...20 FIG 14 STANDARD WIRING SCHEMATIC A C READY DIRECT DRIVE...
Страница 22: ...21 FIG 15 STANDARD WIRING SCHEMATIC BELT DRIVE...
Страница 24: ...23 FIG 16 NH3 EXPLODED ASSEMBLY...
Страница 33: ...32 FIGURE 23 COMMON CHIMNEY DRAFT PROBLEMS...
