Alde COMFORT 2928 Betriebsanweisung Seite 14

2:2 Starting the LPG boiler
1. Open the regulator and service tap for the LPG.
2. Turn the thermostat knob to ignition position (see fig
2). The indicator light for the ignition spark starts
flashing.
3. Press the thermostat knob down as far as it will go.
Hold it down for about 15 seconds after the indicator
light has gone out. (The boiler has ignited as soon as
the warning light goes out, but in order for the ignition
safety cut-out to remain open, the thermostat knob
must be held down for the necessary period).
4. Release the thermostat knob.
5. Turn it to operating position and set the desired
temperature (see chpt 2:4).
6. If the indicator light starts flashing immediately after
the thermostat knob has been released the boiler has
not ignited. Press the thermostat knob down again and
repeat the starting procedure as above, but hold it down
a little longer.
7. You can also check through the window in the lower
front plate whether the boiler is lit.
Should the boiler go out, turn the thermostat knob to stop
position (see fig 3). Wait 3 minutes and repeat the star-
ting procedure.
The boiler is equipped with automatic reignition, which
means that if it goes out for some reason, it attempts to
restart for about 20 seconds (until the safety cut-out has
cut the gas supply). Should the gas run out while the
boiler is in operation, the warning light will start flashing
and continue on until the boiler is shut down or restarted.
2:3 Shutting down the LPG boiler
1. Turn the thermostat knob clockwise to stop position
(see fig 3). After about 20 seconds, a click should be
heard from the gas valve, which means that the safety
cut-out has closed.
2. Stop the circulation pump on the control panel.
3. Close the service tap for the LPG.
NB. When the boiler has gone out, it must not be
reignited until 3 minutes have elapsed.
2:4 Setting for maximum comfort
For maximum comfort and economy, it is important to set
the right water temperature in the system. At low outside
temperatures, a higher water temperature is required than
at more normal temperatures. The ideal setting on the
thermostat knob is when the circulation pump runs about
75% of the time.
When heating a very cold boiler, the thermostat knob
should not be set to maximum temperature imediately,
but at an intermediate position for the first 10 minutes.
The various figures on the thermostat knob represent the
number of degrees of the water temperature in the boiler
as per fig 4.
When it is extremely cold, the gas boiler and the
immersion heater can be run at the same time. This means
that maximum power is obtained from the heating sys-
tem.
When the heating system is used at a high altitude, the
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boiling point of the liquid mixture changes. In this case
the system temperature should be lowered as per fig 5.
In order to utilize the principle of water-born heat in the
best possible way, it is important that air can pass freely
under beds and behind back cushions. If the vehicle has
a fitted carpet, for example, ensure that the carpet does
not cover the intake hole for the convectors. It is equally
important that the cushions and blankets do not prevent
air circulation behind the back cushions.
2:5 Setting the room temperature
The temperature required inside the vehicle should be
set on the knob of the room thermostat, which is gradua-
ted between 5 and 30 ° C.
2:6 Circulation pump
In order to make the heated glycol water circulate, some
form of pump is required. In the expansion vessel of the
LPG boiler a 12-volt circulation pump is fitted as stan-
dard. The boiler can also be equipped with an immersion
heater with a 240-volt circulation pump. The choice of
which pump to use, and whether it is to run constantly or
be interrupted by the room thermostat, is made on the
boiler's control panel.
2:7 Electrical heating
If the immersion heater is fitted on the boiler it can only
be used if you have access to 230/240 volts ~. The power
output is 1050 and 2100 watts respectively. Choice of
power is made on the boiler's control panel.
Inside the immersion heater's protective cover, there are
two thermostats. One ensures that the immersion heater
maintains an operating temperature of around 80
the other acts as overheating protection, which cuts the
current automatically if the immersion heater boils for
some reason. If the overheating protection triggers, it can
be reset by pressing in the overheat reset button on the
side of the immersion heater (see fig 6A).
Make sure that textiles and other inflammable material
cannot come into contact with the immersion heater.
NB. All electrical work on the immersion heater must
be performed by an authorized person.
3:0 External start
(applies only if the immersion heater is fitted).
Do you want the vehicle to be heated when you arrive?
If so, your neighbour or the warden can start the heating
without having to enter the vehicle. However, your boiler
must be fitted with an immersion heater and there must
be a battery eliminator (art. no. 2921 520) connected to
the boiler.
How to perform an external start:
1. Plug the battery eliminator into a 230/240-volt socket.
2. Plug the 12-volt contact into the power intake on the
boiler's control panel (see fig 1 J).
3. Select power and circulation pump on the control pa-
nel.
4. Switch off the main switch in the vehicle.
5. Disconnect the 230/240-volt cable from the external
power supply.
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