THERMOBILE AT 306 Manuel De L'utilisateur page 20

English
Diesel oil is poured manually on a burner
dish, which is ignited with a burning paper
pellet. As soon as the burner dish is at the
right temperature, the pump thermostat
activates the fuel pump; the control light
flashes on. The fuel pump pumps the used oil
onto the burner dish. The used oil evaporates
due to the temperature of the burner dish.
The gas vapour burns.
The maximum thermostat switches off the
fuel pump when a failure causes the heater to
overheat.
The fuel pump is switched off when the
heater is switched off.
The fan thermostat switches on the motor of
the hot air fan, which causes the hot air to be
blown from the heater into the space to be
heated.
The hot air fan runs until the fan thermostat
switches off the fan: this allows the heater to
cool down.
The fuel supply has an overflow that ensures
that the used oil flows back into the fuel tank
when the fuel pipe is blocked.
The overflow protection switches off the fuel
pump when the burner dish overflows.
2.4 Main components of the stationary
used oil fired heater (fig. 3)
A Cover
B Flue connection
C Burner
D Connection to hot air fan (optional for AT
306)
E Identification plate
F Fuel filter
G Switch box
H Fuel tank
I Fuel pump
J Drain cock
K Fill filter
L Fuel pipe
M Return line
N Inspection window
O Fuel supply pipe
P For AT 307:
20
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40.020.933 - rev. 04 - 2011
Heat distributor with fan
Q For AT 307:
Maximum thermostat
2.5 Main components burner AT 306
(fig. 4)
A Cover combustion chamber
B Combustion chamber
C Cylinder afterburner
D Upper ring
E Support ring
F Burner dish
G Overflow protection
H Klixon
I Shovel
2.6 Main components burner AT 307
(fig. 6)
A Explosion window
B Combustion chamber
C Heat shield
D Vaporisation section
E Combustion air ventilator
F Burner dish
G Overflow protection
H Fan thermostat
I Maximum thermostat
J Shovel
2.7 Switch box (fig. 5)
A Rocker Switch:
- 0: The pump is switched off
- 1: Manual operation
- 2: Automatic mode
B Control light
C Connection cable
D Pump regulator
2.8 Thermostat
THe AT 300 series has the following
thermostats:
• Pump thermostat (for AT 306 and 307):
When the heater is switched to automatic
mode, the fuel pump starts up
automatically when the burner dish
reaches the right temperature.
• Maximum thermostat (for AT 307):
AT 300 series