www.desatech.com
103908-01E 5
OPERATION
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.
TO START HEATER
1. Follow all installation, ventilation and safety
information.
2. Locate heater on stable and level surface.
Make sure strong drafts do not blow into front
or rear of heater.
3. Make sure the control knob is in the OFF
position.
5. Check all connections for leaks.
6. Close propane supply valve.
INSTALLATION
Continued
Figure 3 - Regulator With Vent Pointing
Down
Hose
Regulator
Vent
(pointing
down)
Fuel Gas
Connector
Supply Valve
Propane
Tank
Figure 4 - Hose and Inlet Connector
Hose
100,000 Btu/Hr
Model Shown
Inlet
Connector
4. Plug power cord of heater into a three-prong,
grounded extension cord. Extension cord must
be at least 6 ft. (2 m) long, UL/CSA listed, and
of a proper size.
Extension Cord Size Requirement
Up to 100 ft. (30 m) long, use 16 AWG rated
cord.
101 to 200 ft. (31 to 60 m) long, use 14 AWG
rated cord.
5. Plug extension cord into a 120 volt/60 hertz,
3-hole, grounded outlet. Motor will start. Fan
will turn, forcing air out front of heater.
6. Open propane supply valve on propane tank(s)
slowly.
Note: If not opened slowly, excess-
flow check valve on propane tank will stop
gas flow. If this happens, close propane supply
valve and open again slowly.
7. Press and hold in control knob. Turn counter
-
clockwise to the LOW position. Heater should
ignite within a few seconds.
Note: If heater fails to ignite, hose may have
air in it. If so, keep automatic control valve
button pressed and wait 20 seconds. Release
automatic control valve button and wait 20
seconds for unburned fuel to exit heater.
Repeat step 7.
8. After heater ignites, wait 30 seconds then
release the control knob. This activates the
automatic control system.
9. When burner remains lit, set heater at the
desired heat level by turning the control valve
counterclockwise. If burner goes out, turn off
gas. Turn control knob fully clockwise to the
lowest position. Check fuel supply. If adequate
fuel is available, restart heater beginning at
step #1.
TO STOP HEATER
1. Tightly close propane supply valve on propane
tank(s).
2. Wait a few seconds. Heater will burn gas left
in supply hoses.
3. Turn control knob to the OFF position.
4. Unplug heater.