Desa H.S.I. - Manual (Page 4)

112846-01A
4
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WARNING: Before operating heater or any appli-
ance from a portable generator, verify that generator
has been properly connected to earth ground. Im-
proper grounding or failure to ground generator can
result in electrocution if a ground fault occurs. Refer
to owner’s manual supplied by generator manufac-
turer for proper grounding procedures.
The operating voltage range of the heater is 108 to 132 Volts (120
Volts +/- 10%). Prior to plugging heater into generator the output
voltage should be verified (if generator is equipped with the automatic
idle feature, the output voltage should be measured with the generator
running at full speed). If the voltage does not measure in this range
the heater should not be plugged into the generator.
Refer to Operation for starting, stopping, and resetting heater
procedures.
OPERATION WITH PORTABLE
GENERATOR
Figure 3 - Typical Generator Grounding Method (Generator
construction may vary from that shown)
Ground Lug
Ground Wire (#10 AWG -
Stranded-Copper)
Alternator
Copper or Brass
Grounding Point
VENTILATION
OPERATION
OPERATION WITH PORTABLE GENERATOR
VENTILATION
WARNING: Provide a fresh air opening of at least
three square feet (2,800 square cm) for each 100,000
Btu/hr rating. Provide extra fresh air if more heaters
are being used. The minimum ventilation require-
ments must be followed to avoid risks associated
with carbon monoxide poisoning. Make certain these
requirements are met prior to operating heater.
Example: A 60,000 Btu/Hr (17.6kw) heater requires one of the
following:
• a two-car garage door [16 feet (4.88 meter) opening] raised 1.5
inches (3.9 cm)
• a single-car garage door [9 feet (2.74 meter) opening] raised
2.5 inches (6.4 cm)
• two, 30 inch (76.2 cm) windows raised 4.5 inches (11.5 cm)
TO START HEATER
1. Follow all ventilation and safety information.
2. Locate heater to provide maximum circulation of the heated
air. Follow all location requirements noted in Safety Informa-
tion, page 2.
3. Fill fuel tank with kerosene, #1#2 diesel/fuel oil, JET A or
JP-8 fuel.
4. Attach fuel cap.
5. For thermostat models, turn thermostat knob clockwise to the
high position.
6. Plug heater’s power cord into approved, grounded, three-wire
extension cord. Extension cord must be at least six feet (1.8
meters) long.
Extension Cord Size Requirement
6 to 10 feet (1.8 to 3 meters) long, use 18 AWG (0.75 mm 2 )
rated cord
11 to 100 feet (3.3 to 30.5 meters) long, use 16 AWG (1.0 mm 2 )
rated cord
101 to 200 feet (30.8 to 61 meters) long, use 14 AWG (1.5 mm 2 )
rated cord
7. Plug extension cord into standard 120 volt/60 hertz, 3-prong
grounded outlet.
Note: Ignitor will preheat for five seconds,
then heater will start.
OPERATION
IMPORTANT: Review and understand the warnings
in the
Safety Information section, page 2. They are
needed to safely operate this heater. Follow all local
ordinances and codes when using this heater.
8. For thermostat models, adjust thermostat knob to the desired
setting.
Note: A cold heater may affect the thermostat setting.
This thermostat is a general-heating control. It is not intended
for precise temperature control. Adjust thermostat until heater
cycles at the desired setting.
TO STOP HEATER
Unplug extension cord from outlet.
TO RESTART HEATER
1. Unplug extension cord from outlet and wait 10 seconds. (Wait
two minutes if heater has been running.)
2. Repeat steps under To Start Heater.