Fitted Equipment
60
from stainless steel, while the heat
exchanger is made from aluminium.
The heat exchanger is divided into two semi-
circles. The burner is located in the upper
half, the combustion chamber, and the
combustion gases are expelled through the
lower half. The burner unit is fitted on the
end of the heat exchanger. It consists of a
combustion fan, burner, solenoid valve and
intake/exhaust connections. One or two
heating cartridges are fitted to the water
jacket of the heating system. Output is 2 or
3 kW, depending on model.
DESCRIPTION OF FUNCTIONS
Using LPG
When the sliding switch on the control panel
is set to LPG, the combustion fan starts.
The fan creates pressure against the
pressure gauge. When the fan pressure is
sufficiently high, the pressure gauge signals
the electronics box that the boiler can be lit.
The electronics box sends ignition sparks to
the spark plug at the same time as it sends
electricity to the solenoid valves, which open
to allow gas in. The burner ignites, and a
sensor transmits a signal back to the
electronics box that the boiler is lit and
ignition spark stops. The burner keeps
burning until the boiler thermostat or the
room thermostat reaches the set
temperature reading. Should the boiler go
out for any reason, the sensor is activated
and the electronics box ensures that a new
attempt is made to start the boiler (in about
10 seconds).
Using the heating cartridge
When the heating cartridge sliding switch is
set to any of the output settings on the
control panel, the 12-volt relays on the
circuit board trip, allowing the 230-volt
supply to reach the cartridge. The heating
cartridge is controlled in the same way as
the gas boiler.
IMPORTANT INFORMATION
- The LPG boiler and heating cartridge may
be operated in parallel.
- The heating system may be heated up
without the warm water heater being filled
with fresh water.
- Always drain the warm water heater of
fresh water if there is a risk of frost.
- The LPG boiler must not be operated
when filling the vehicle with fuel, in a
garage or elsewhere.
- The boiler must not be started if there is
no glycol in the system.
Note: If heating is to be operational
whilst unattended, ensure mains hook
up is connected. System can cause
battery to run flat, if battery is the sole
power source.
THE CONTROL PANEL
The boiler is controlled using sliding
switches on the control panel. The desired
temperature in the vehicle is set and
regulated via the thermostat on the control
panel.
Control panel functions:
A. Heating cartridge switched off.
B. Heating cartridge switched on at 1050 W.
C. Heating cartridge switched on at 2100 W.
D. Heating cartridge switched on at 3150W
(if the boiler is fitted with this output
setting).
E. LPG boiler switched off.
F. LPG boiler switched on.
G. LED indicates that the LPG boiler is in
blocking mode (the burner has not
ignited, or has gone out for some reason).
H. Warm water setting. The circulation
pump switched off. The heating
cartridge/LPG boiler is operated by the
boiler's built-in thermostat. Used when
only hot water is wanted.
I. Normal setting. The circulation pump is
switched on and is controlled by the
thermostat on the control panel. The
operation of the heating cartridge/LPG
boiler is controlled by the boiler's built-in
thermostat. Used when both heating and
warm water is wanted.
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