Ventilation; Operation - Desa ROPANE CONSTRUCTION HEATER Owner's Manual

INSTALLATION
Continued
3. Connect hose to valve inlet. Tighten firmly using a wrench.
You must use the regulator supplied with heater.
4. Open propane supply valve on propane tank(s) slowly. Note:
If not opened slowly, excess-flow check valve on propane 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
corrected. Correct all leaks at once.
Propane
Supply
Valve
Propane
Tank
Figure 6 - Regulator Position
Knob
Valve Inlet
Figure 7 - Hose and Inlet Connector
For more information, visit www.desatech.com
For more information, visit www.desatech.com
105331-01C
Regulator
Fuel Gas
Fitting
Hose

VENTILATION

WARNING: Provide at least a 1.5 square foot
opening of fresh, outside air while running heater. If
proper fresh, outside air ventilation is not provided,
carbon monoxide poisoning can occur. Provide proper
fresh, outside air ventilation before running heater.

OPERATION

WARNING: Review and understand the warnings
in the Safety Information section, pages 2 and 3. They
are needed to safely operate 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. Plug power cord of heater into a three-prong, grounded exten-
Hose
sion cord. Extension cord must be at least six feet long. Exten-
sion cord must be UL listed.
Extension Cord Wire Size Requirements
Up to 50 feet long, use 18 AWG rated cord. 51 to 100 feet
long, use 16 AWG rated cord. 101 to 200 feet long, use 14
AWG rated cord.
4. 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.
5. Open propane supply valve on propane tank(s) slowly. Note:
If not opened slowly, excess-flow check valve on propane tank
may stop gas flow. If this happens, close propane supply valve
and open again slowly.
WARNING: Be sure motor and fan are running before
pushing in automatic control valve button. Flames could
flash outside heater if motor and fan are not running.
6. Turn control knob to the low position and push in (see Figure
8 and 9, page 6). Hold knob in and push piezo ignitor button.
You may need to push piezo ignitor button 3-8 times until the
main burner lights. When main burner lights, keep automatic
control valve knob pushed in. Release button after 30 seconds.
Note: If main burner fails to light, hose may have air in it. If
so, keep control knob pressed and wait 20 seconds. Release
control knob and wait 20 seconds for unburned fuel to exit
heater. Repeat step 6.
INSTALLATION
5 5
VENTILATION
OPERATION
To Start Heater