SECTION XIII - RECIRCULATION
WARNING: On Heaters, which recirculate room
air, outside ventilation air must be provided in
accordance with the information shown on the
heater nameplate.
Recirculation of room air may be hazardous in the
presence of:
•
fl
ammable solids, liquids and gases
• explosive materials such as grain dust, coal dust,
gunpowder, etc.
• substances such as refrigerants or aerosols which
may become toxic when exposed to heat or
fl
ame
Recirculation is not recommended in uninsulated build-
ings where outside temperatures fall below 32°F (0°C).
Excessive recirculation or insuf
fi
cient ventilation air,
which results in inadequate dilution of combustion
products generated by the heater, may create haz-
ardous concentration of carbon monoxide, nitrogen
dioxide, and other combustion products in the heated
space.
If gas fork trucks or other fossil fuel powered equip-
ment are utilized in the conditioned area, additional
ventilation requirements for the facility must be ad-
dressed separately.
The heater inlet shall be located in accordance with
applicable building code provisions for ventilation air.
Field constructed intake accessories should be prop-
erly designed to minimize the entry of snow and rain.
All ventilation air to the heater shall be ducted directly
from the outdoors.
If in doubt regarding the application, consult the heater
manufacturer.
ETL labeled heaters must be equipped with a control
system and an air measuring station provided by the
heater manufacturer and installed on the return air
damper or duct.
Dealer/Contractor Name:
City:
Address:
State:
Zip:
Ph:
SECTION XII - REPLACEMENT PARTS
Replacement parts may be ordered from the factory.
All warranty parts will be shipped freight allowed from
factory for normal ground service. Warranty parts must be
returned prepaid within
30 days.
Credit will be issued if
part is complete, defective and returned on time.
When parts are ordered, MODEL NUMBER, SERIAL
NUMBER, FACTORY ORDER (F.O.) and PART NUM-
BERS are required. Belts,
fi
lters, and fuses are not
covered under warranty.
4830 Transport Drive, Dallas, TX 75247
Phone: 214-638-6010 Fax: 214-905-0806
www.ljwing.com
