Desa RV125EDI User Manual
ReDDY Hea TeR
PORTABLE
FORCED
AIR HEATER
OWNER’S MANUAL
125 SIDE PFA/PV 004
Model RV125EDI
IMPORTANT
Read and understand this manual before assembling, starting or servicing
heater. Improper use of heater can cause serious injury. Keep this manual
for future reference.
CONTENTS
SECTION PAGE
Safety Information......................................................................... 3
Introduction ...................................................................................4
Product Identification ....................................................................4
Unpacking......................................................................................4
Assembly ....................................................................................... 5
Theory of Operation ......................................................................6
Fuels .............................................................................................. 6
Ventilation ..................................................................................... 7
Operation ....................................................................................... 7
Storage ...........................................................................................8
Preventative Maintenance Schedule.............................................. 8
Troubleshooting............................................................................. 9
Service Procedures ........................................................................10
Upper Shell Removal ..............................................................10
Fan...........................................................................................10
Air Output, Air Intake, and Lint Filters .................................. 11
Pump Pressure Adjustment ..................................................... 11
Fuel Filter................................................................................ 12
Spark Plug ...............................................................................12
Nozzle .....................................................................................13
Pump Rotor ............................................................................. 14
Specifications................................................................................. 15
Wiring Diagram............................................................................. 15
Accessory ...................................................................................... 15
Illustrated Parts Breakdown and Parts List....................................16
Wheels and Handles................................................................ 17
Burner Head Assembly ........................................................... 18
Motor and Pump Assembly .................................................... 18
Warranty and Repair Service.........................................................Back Cover
2
SAFETY
INFORMATION
!
WARNINGS
IMPORTANT: Read this owner’s manual carefully and completely
before trying to assemble, operate, or service this heater. Improper use
of this heater can cause serious injury or death from burns, fire,
explosion, electrical shock, and carbon monoxide poisoning.
!
DANGER
Carbon monoxide poisoning may lead to death!
Carbon Monoxide Poisoning: Early signs of carbon monoxide poisoning
resemble the flu, with headaches, dizziness, and/or nausea. If you have these signs,
the heater may not be working properly. Get fresh air at once! Have heater
serviced. Some people are more affected by carbon monoxide than others. These
include pregnant women, people with heart or lung disease or anemia, those under
the influence of alcohol, and those at high altitudes.
Make certain you read and understand all warnings. Keep this manual for reference.
It is your guide to safe and proper operation of this heater.
• Use only kerosene or No. 1 fuel oil to avoid risk of fire or explosion. Never
use gasoline, naphtha, paint thinners, alcohol, or other highly flammable fuels.
• Never use heater where gasoline, paint thinner, or other highly flammable
vapors are present.
• Follow all local ordinances and codes when using heater.
• Never use heater without properly installed vent piping and regulator.
• This heater must have fresh air for proper operation. If not, poor fuel
combustion and improper venting of flue gases will result. Carbon monoxide poisoning from backed-up flue gases could occur.
• Use only in places free of flammable vapors or high dust content.
• Use only with the electrical voltage and frequency specified on model plate.
• Use only a three-prong, grounded (earthed) extension cord.
• Minimum heater clearances from combustibles:
Outlet: 8 Ft. (250 cm) Sides, Top, and Rear: 4 Ft. (188 cm)
• Locate heater on a stable and level surface while hot or running or a fire
may occur.
• When moving or storing heater, keep heater in a level position or fuel
spillage may occur.
• Keep children and animals away from heater.
• Unplug heater when not in use.
• When used with thermostat, heater may start anytime.
• Never use heater in living or sleeping areas.
• Never block air inlet (rear) or air outlet (front) of heater.
• Never move, handle, refuel, or service a hot, operating, or plugged-in heater.
• Never attach duct work to front or rear of heater.
3
INTRODUCTION
PRODUCT
IDENTIFICATION
This heater is designed to provide heated air. The heated air is free of harmful
exhaust gases. Vent exhaust gases to the outdoors through a flue pipe, smokestack, or chimney. When using the heater, provide enough air for combustion and
ventilation. Provide proper power supply for the heater.
This manual contains operating, maintenance, and troubleshooting instructions. A
complete parts list is also included.
Exhaust
Gases Outlet
Interrupter
Hot Air
Outlet
Lower
Shell
Fuel Cap
Upper Shell
Air Filter
End Cover
UNPACKING
Fan Guard
Power Cord
Figure 1 - RV125EDI
1. Remove all packing items applied to heater for shipment.
2. Remove all items from carton.
3. Check items for shipping damage. If heater is damaged, promptly inform
dealer where you bought heater.
Flame-out
Control Reset
Button
Fuel
Tank
4
ASSEMBLY
This heater is furnished with wheels, handles, and an interrupter. These items and
the mounting hardware are found in the shipping carton.
Tools Needed
• Medium Phillips Screwdriver
• 3/8" Open or Adjustable Wrench
• Hammer
1. Slide axle through wheel support frame. Install wheels on axle.
IMPORTANT:
wheel support frame (see Figure 2).
2. Place cap nuts on axle ends. Gently tap with hammer to secure.
3. Place heater on wheel support frame. Make sure air inlet end (rear) of heater is
over wheels. Line up holes on fuel tank flange with holes on wheel support
frame.
4. Place front handle and rear handle on top of fuel tank flange. Insert screws
through handles, fuel tank flange, and wheel support frame. Attach nut finger
tight after each screw is inserted.
5. After all screws are inserted, tighten nuts firmly.
6. Place interrupter onto combustion chamber. Secure with two screws. Save two
additional screws for mounting vent pipe.
When installing wheels, point extended hub of wheels toward
Hot Air
Outlet
Fuel
Tank
Flange
Wheel
Support
Frame
Wheel
Screw
Nut
Front
Handle
Interrupter
Screw
Rear
Handle
Air
Inlet
Cap Nut
Extended
Axle
Figure 2 - Wheel, Handle, and Interrupter Assembly
Hub
5
THEORY OF
!
OPERATION
The Fuel System: The air pump forces air through the air line. The air is then
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.
Exhaust gases are ducted out of the heater through a vent pipe. The user must
supply the vent pipe.
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.
Exhaust Gases
Outlet
Heat Exchanger
Outer Shell
Spark
Plug
Burner
Head
Motor Air Pump
Fan
Intake
Air Filter
Clean
Heated
Air Out
FUELS
Exhaust gases cross over
from combustion chamber
to heat exchanger
Exhaust
Gases
Fuel
Tank
Air For Fuel
System
Figure 3 - Cross Section Operational View
Nozzle
Air For Combustion
And Heating
Air line
To Burner
Fuel
WARNING
Use only kerosene or No. 1 fuel oil to avoid risk of fire or
explosion. Never use gasoline, naphtha, paint thinners,
alcohol, or other highly flammable fuels.
Cool
Air
In
Output
Air
Filter
Electronic
Ignitor
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
• the need of non-toxic anti-icer in fuel during very cold weather
IMPORTANT:
Use a KEROSENE ONLY storage container. Be sure storage
container is clean. Foreign matter such as rust, dirt, or water will cause the flameout control to shut down heater. Foreign matter may also require you to clean fuel
system often.
6
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