Master Lock 150000 BTU/Hr, 70000 BTU/Hr, 100000 BTU/Hr owner manual Theory, Operation, Fuels

Page 6

6

THEORY OF

The Fuel System: The air pump forces air through the air line. The air is then

OPERATION

pushed through the burner head nozzle. This air causes fuel to lift from the tank. A

fine mist of fuel is sprayed into the combustion chamber.

 

 

 

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 electronic ignitor sends voltage to the spark plug.

 

The spark plug ignites the fuel and air mixture.

 

 

 

The Flame-Out Control System: This system causes the heater to shut down

 

if the flame goes out.

 

 

 

 

 

 

 

 

Motor

Air Pump

 

Combustion

Spark

Burner

Fan

Intake

 

Chamber

Plug

Air

 

Head

 

 

 

 

Filter

 

 

 

 

 

Clean

 

 

 

 

Cool

Heated

 

 

 

Air

Air Out

 

 

 

 

In

 

 

 

 

 

Output

 

 

 

 

 

Air

 

 

 

 

 

Filter

Fuel

Nozzle

Fuel

Air line

Electronic

 

Tank

 

Filter

To Burner

Ignitor

 

 

 

 

Air For Fuel

 

Air For Combustion

Fuel

 

System

 

And Heating

 

 

 

 

 

THEORY CUTAWAY

 

PFA/OV 003

 

 

 

Figure 5 - Cross Section Operational View

 

 

FUELS

WARNING

 

Use only kerosene or No. 1 fuel oil to avoid risk of fi re or explosion. Never use gasoline, naphtha, paint thinners, alcohol or other highly fl ammable fuels.

Do not use heavy fuels such as No. 2 fuel oil or No. 2 Diesel. Using heavy fuels will result in:

clogged fuel filter and nozzle

carbon build up on spark plug

use of non-toxic anti-icer in fuel during very cold weather

IMPORTANT: Use a KEROSENE ONLY container. Be sure storage container is clean. Foreign matter such as rust, dirt, or water will cause the flame-out control to shut down heater. Foreign matter may also require you to clean fuel system often.

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Contents Portable Forced AIR Heaters Contents Safety Information Carbon monoxide poisoning may lead to deathProduct Identification 70,000 BTU/Hr ModelUnpacking Assembly Tools NeededTheory OperationFuels Ventilation Operation To Start HeaterOperation Storage Preventative Maintenance Schedule To Stop HeaterTo Restart Heater Observed Fault Possible Cause TROUBLE- ShootingService Procedures Upper Shell RemovalFuel Filter Spark Plug Fuel Filter Removal, 100/150,000 BTU/Hr ModelsPump Pressure Adjustment Air Output, Air Intake, and Lint FiltersNozzle Removing Burner HeadPump Rotor Rotor Location, 70,000 BTU/Hr ModelSpecifications FanParts Breakdown 70,000 BTU/HrParts List KEY Part Number Description QTY100,000 BTU/Hr M10908-2 Screw, #6-32 x 3/8 Illustrated Parts Breakdown 150,000 BTU/HrPart number and description of the desired part Wheels and Handles for Wiring Diagrams AccessoriesWarranty and Repair Service Certificate of General Equipment Limited 90 DAY Warranty