4
THEORY OF OPERATION PROPANE/LP SUPPLY VENTILATION INSTALLATION
THEORY OF OPERATION
The Fuel System: The hose/regulator assembly attaches to the propane gas supply. The propane gas moves through the solenoid valve and out the nozzle.
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 direct spark ignitor (DSI) sends voltage to the ignitor. The ignitor ignites the fuel and air mixture.
The Safety Control System: This system causes the heater to shut down if the flame goes out. The motor will continue to run, but no heat is produced.
The chart below shows the number of
Do not operate this product with any tank smaller than 100 pounds.
Temperature (°F) At Tank
40° 32° 20° 0° -10° -20°
Number of tanks 3 (Use larger tank below 40°F)
Less gas is vaporized at lower temperatures. You may need a larger tank in colder weather. Your local propane/LP gas dealer will help you select the proper supply system. The minimum surrounding air temperature rating for each heater is
VENTILATION
Clean
Heated
Air Out 
(Front)
Combustion
Chamber
| Ignitor Fan | Motor | |
|
| ||
|
| Cool | |
|
| Air In | |
|
| (Back) | |
|
| Power | |
DSI |
| Cord | |
|
| ||
Nozzle | Solenoid |
| |
Valve | Hose/ | ||
| |||
Air For Combustion | Air For Heating | Regulator | |
|
| Assembly |
WARNING: Follow the minimum fresh, outside air ventilation requirements. If proper fresh, outside air ventilation is not provided, carbon monoxide poison- ing can occur. Provide proper fresh, outside air ven- tilation before running heater.
Provide at least three square feet of fresh, outside air for each 100,000 Btu/Hr of rating. This heater requires a fresh air opening of at least 11.25 square feet. Provide extra fresh air if more heaters are being used.
INSTALLATION
WARNING: Review and understand the warnings
Figure 2 - Cross Section Operational View
PROPANE/LP SUPPLY
Propane/LP gas and propane/LP tank(s) are to be furnished by the user.
Use this heater only with a propane/LP vapor withdrawal supply system. See Chapter 5 of the Standard for Storage and Handling of Liquefied Petroleum Gas, ANSI/NFPA 58 and the Propane Instal- lation Code CAN/CGA B149.2. Your local library or fire depart- ment will have these booklets.
The amount of propane/LP gas ready for use from propane/LP tanks varies. Two factors decide this amount:
1.The amount of propane/LP gas in the tank(s)
2.The temperature of tank(s)
in the Safety Information section, page 2. They are needed to safely operate this heater. Follow all local codes when using this heater.
WARNING: Test all gas piping and connections for leaks after installing 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.
1.Provide propane/LP supply system (see Propane/LP Supply).
2.Connect POL fitting on hose/regulator assembly to propane/LP tank(s). Turn POL fitting counterclockwise into threads on tank. Tighten firmly using a wrench. IMPORTANT: Tighten regula- tor with black adjustment knob pointing down. Pointing adjust- ment knob down protects regulator from weather damage.
3.Connect hose to inlet connector. Tighten firmly using a wrench. IMPORTANT: Extra hose or piping may be used if needed. Install extra hose or piping between hose/regulator assembly and propane/LP tank. You must use the regulator supplied with the heater.
For more
visit www.
.com
103018