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Start-Up Instructions
1. Connect the heater's electrical cord to an
approved electrical outlet.
2. Open the gas supply valve. For LP heaters, this is
located on the tank or cylinder.
3. Tradesman 400 Dual Fuel: Set the fuel selector valve
to correct position. See Fig. 10
4. Set thermostat on heater to a setting above room
temperature. The heater will start and the burner
will ignite.
5. Position the variable rate valve to desired heat. See
Fig. 11.
■ It is normal for air to be trapped in gas hose on new
installations. You may need to recycle the heater
before air is finally purged from the line and ignition
takes place.
■ Do not exceed input rating provided on dataplate or
manufacturer's recommended burner manifold pre-
ssure for size orifice used. Ensure that the primary
air supply to heater is open and free of dust, dirt and
debris for complete proper combustion
Shut-Down Instructions
If the heater is to be shut down for cleaning,
maintenance, or repair, follow steps 1-4. Otherwise
turn the thermostat to a lower setting.
1. Close the gas supply valve.
2. Allow the heater to burn off any fuel gas remaining
in the gas supply line.
3. Set the thermostat to its lowest setting.
4. Disconnect the heater from its gas and electrical
supplies.
Tradesman Construction Heaters
Selector Valve
(Tradesman 400 Dual Fuel)
This heater is shipped from the factory with the fuel selec-
tor valve in the propane gas (LP) position. Ensure the fuel
selector valve's handle is properly positioned for the fuel
being used.
FIG. 10
Variable Rate Valve
All heaters includes a variable rate valve for adjusting the
heat output from low to high heat, or anywhere
in-between. See Fig. 11.
FIG. 11
Cleaning Instructions
Fire, Burn and Explosion Hazard
■ This heater contains electrical and mechanical compo-
nents in the gas management, and safety systems.
■ Such components may become inoperative or fail due
to dust, dirt, wear and aging.
■ Periodic cleaning and inspection as well as proper
maintenance are essential to avoid serious injury or
property damage.
1. Before cleaning, shut off all gas supply valves and
disconnect electrical supply.
2. The heater should have dirt or dust removed
periodically:
NOTE: Before each use clean the heater using compressed
air or a soft brush or dry rag on its case and internal com-
ponents. At this time, dust off the motor case to prevent the
motor from over-heating. Also ensure the fan blade is free of
material build-up.
Owner's Manual • Tradesman
WARNING
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