L.B. White 400 Tradesman Portable Forced Air - Manual (Page 11)

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.
3. Set thermostat on heater to a setting above room
temperature. The heater will start and the burner will
ignite.
■
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.
4. Do not exceed input rating provided on dataplate or
manufacturer’s recommended burner manifold
pressure 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.
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.
Shut-Down Instructions
14 10
Variable Rate Valve
T h i s h e a te r i n c l u d e s a va r i a b l e r a te va l ve fo r
adjusting the heat output from low to high heat, or
anywhere in-between. See Figs. 5. FIG. 5