Desa BLP50VA - Manual (Page 4)

PROPANE CONSTRUCTION HEATER
50,000 BTU/HR
4 105331
Air For Combustion Air For Heating
THEORY OF
OPERATION Combustion Chamber
THE FUEL SYSTEM
The hose/regulator assembly attaches to the
propane gas supply. This provides fuel to
the heater.
THE AIR SYSTEM
The motor turns the fan. The fan pushes air
into and around the combustion chamber.
This air is heated and provides a stream of
clean, hot air.
THE IGNITION SYSTEM
The piezo ignitor lights the burner.
THE AUTOMATIC CONTROL
SYSTEM
This system causes the heater to shut down
if the flame goes out.
Motor
Clean
Heated Air
Out
(Front)
Hose/
Regulator
Assembly
Cool Air
In (Back)
Figure 2 - Cross Section Operational View
Fan
ASSEMBLY
1. Remove screw from top of fan guard.
Discard screw.
2. Insert nut clip (provided with handle)
with flat side facing up through slot in
top of shell. Align holes in nut clip with
screw hole behind slot in top of shell.
(see Figure 4).
3. Place handle over hole and clip. Insert
two screws (provided with handle)
through handle and tighten into shell.
Make sure rear screw goes through
shell and into fan guard. Tighten screws
firmly.
Figure 3 - Removing Screw from Top of
Fan Guard
Figure 4 - Installing Nut Clip
Figure 5 - Attaching Handle
Remove
Screw
Nut Clip
Slot
Shell
Screws
Handle
Rear of
Heater
Nut Clip
Flat Side Facing Up