4
103868
PROPANE CONSTRUCTION HEATER
50,000 BTU/HR
INSTALLATION
Valve Inlet
Hose
Figure 4 - Hose and Inlet Connector
WARNING: Review and un-
derstand the warnings in the
Safety Information Section, page
2. They are needed to safely op-
erate this heater. Follow all local
codes when using this heater.
Propane
Tank
Propane
Supply
Valve
Regulator
Hose
Fuel Gas
Fitting
Figure 3 - Regulator Position
1.
Provide propane supply system (see
Propane Supply).
2.
Connect fuel gas fitting on hose/regu-
lator assembly to propane tank(s). Turn
fuel gas fitting counterclockwise into
threads on tank. Tighten firmly using a
wrench.
IMPORTANT:
Position regu-
lator so that hose leaving the regulator
is in a horizontal position (see Figure
3). This places the regulator vent in the
proper position to protect it from the
weather.
3.
Connect hose to valve inlet. Tighten
firmly using a wrench. You must use
the regulator supplied with heater.
WARNING: Test all gas pip-
ing and connections for leaks
after installation or servicing.
Never use an open flame to check
for a leak. Apply a mixture of
liquid soap and water to all joints.
Bubbles forming show a leak.
Correct all leaks at once.
Knob
THEORY OF
OPERATION
Combustion Chamber
The Fuel System:
The hose/regulator
assembly attaches to the propane gas sup-
ply. 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
4.
Open propane supply valve on propane
tank(s) slowly. Note: If not opened
slowly, excess-flow check valve on pro-
pane tank may stop gas flow. If this
happens, close propane supply valve
and open again slowly.
5.
Check all connections for leaks. Apply
mixture of liquid soap and water to gas
joints. Bubbles forming show a leak
that must be corrected.
6.
Close propane supply valve.
WARNING: Never use an open
flame to check for a leak. Apply a
mixture of liquid soap and water
to all joints. Bubbles forming
show a leak that must be cor-
rected. Correct all leaks at once.
Clean
Heated Air
Out
(Front)
Hose/
Regulator
Assembly
Cool Air
In (Back)
Figure 2 - Cross Section Operational View
Air For Combustion
Air For Heating
Fan
