Sealey IR55 - Manual (Page 3)

5.1. Principles of Operation
5.1.1. Fuel and Air System: This heater is equipped with an oil pump that operates from an electric motor. The pump forces oil from the fuel
tank, drawing fuel to the nozzle in the burner head. Air also passes through the nozzle via a fan and ducting where it mixes with the fuel,
sprayed into the combustion chamber as a fine mist where it is super-heated and forced out the front of the chamber.
5.1.2. Quick-Fire Ignition: A transformer sends high voltage to a two pronged spark plug. The spark ignites the fuel/air mixture as it is sprayed
into the combustion chamber.
5.1.3. Electrical System Protection: The heater’s electrical system is protected by a circuit breaker that protects the system components from
damage. If the heater fails, check the fuse first, and replace if necessary.
5.1.4. Flame Sensor: The heater uses a photocell to see the flame in the combustion chamber. Should the flame extinguish, the sensor will stop
electrical current and the heater will shut off.
5.2. Fuel: The heater operates with paraffin, kerosene or diesel fuel. DO NOT use any other type of fuel.
5.3. When used in the construction or agricultural industries ensure that the safety regulations in force are adhered to with regard to distances
from animals, flammable materials and any other specified substances.
 WARNING! Air contaminants taken into the heater may affect the heat output, damage the unit and may cause health problems.
Example: Bodyshop filler dust/paint overspray will damage the motor bearing, clog the filter and compressor and contaminate
the combustion chamber causing flame flutter and health hazards. Please note that any parts damaged by filler dust/paint over
spray will not be covered by warranty. Additionally, a cleaning charge will be made for any heaters damaged by filler dust/paint
over spray.
5.4. Ventilation:

WARNING! Only use the heater in well ventilated areas. Careful consideration must be given to the placing of the heater to provide safe
and comfortable heating. Ensure continuous ventilation is provided to the heater operating area. A ventilation opening must run to the
outside of the premises in which the heater is to be operated.
The heater requires a fresh air opening of at least 2800cm².
For Example:
- A two car garage door should be open at least 11cm.
- A single car garage door should be open at least 16cm.
- Two 76cm windows should be open at least 20cm.
Table of fixings for sub assembly
Power on lamp
Timer / Room
thermostat socket
("II" only) Illuminated reset button Selector switch "I"/"O"/"II".
Power cable
Control Panel
fig.3
fig.2
fig.4
Fuel filter
window and
access
Lifting lugs
Fuel filler caps
Horizontal location hole
Tilt frame
pivot point
Drain plug beneath (8mm hex key)
Heater inclined 10°
Original Language Version
IR55 Issue: 3(I) - 19/02/15 © Jack Sealey Limited
5. OPERATING CONDITIONS