5. INSTALLATION INSTRUCTIONS
Position the heater on a flat, level, non-flammable, solid surface.
Direct-fired heaters are intended for use in outdoor open areas or in indoor well ventilated areas.
For indoor use, provide permanent ventilation openings of at least 25 cm²/kW, equally distributed
between floor and high level, with a minimum of 250 cm².
MODEL
Minimum Opening Size
• Only install the heater in normal upright position.
• Do not place the heater near walls, corners or low ceilings.
• Do not place the heater below a socket outlet.
• Do not place the heater on moving vehicles or where it can tip over.
• Keep the heater away from flammable, combustible, explosive or corrosive materials.
• Keep the heater away from curtains or similar materials that could block the air inlet and
outlet.
• Never block or restrict the air inlet and outlet for any reason.
• Keep the power cable away from heat sources, sharp edges, cutting and moving parts.
• Do not expose directly to the weather or to excessive humidity.
• Do not place the heater in the immediate surroundings of a bath, shower or swimming pool.
• Follow general and special fire safety regulations in force in all fields of applications. In any
case ensure the following minimum safety clearances from materials or objects in the
surroundings of the heater:
• Side: 0.6 m
• Air inlet side: 1 m
• Top: 1.5 m
• Hot air outlet side: 3 m
• Floor: 0 m
• Floors and ceilings must be made of fireproof materials in the place where the heater is
operated.
• Do not connect direct-fired heaters to air ducts.
6. INSTRUCTIONS FOR USE
6.1. Start-up
Fill tank with clean fuel. Only use Diesel or Kerosene.
The fuel gauge on top of the tank allows to check fuel level
Connect the power cord plug to a AC220-240V~50 Hz earthed electrical supply system.
Earthing is mandatory.
MODELS 20501-20553-20503:
When complete "start-up" above, the left display window shows "--", the right display
window shows ambient temperature value.
Push the power switch to "ON"(1) position.
The default temperature setting is 20°C, be showed on the left display window.
If the ambient temperature is lower than default temperature, the electrodes start
sparking, after 7 seconds, the heater starts.
If the ambient temperature is higher than default temperature, turn thermostat control
knob to desired temperature, the electrodes start sparking, after 7 seconds, the heater
starts.
COLD START-UP: at low temperature keep the air vent hole (see Fig. 6) closed by a finger
during ignition to make start-up easier.
ABNORMAL OPERATION: in case of malfunction (flame failure, reduced air flow, bad
combustion, etc.) the heater stops and the indicator light starts FLASHING (THE LOCK-OUT
MODE code will be showed on the display window).
30
20501
20553
600cm²
800 cm²
20503
1250 cm²