6
1.2
Technical safety
equipment
1.2.1 Gas control valve
The water heater is equipped with a
gas control valve wich regulates the
flow of gas to the burner. The gas block
is equipped with a safety valve, gas
valve and burner control (on a standard
natural gas setting). To ensure
improved ignition the gas control valve
opening mechanism is fitted with a
delay (softlite).
The gas control block is suitable for
gasses from the first, second and third
gas family. The maximum inlet pressure
is 60 mbar.
The automatic incandescent ignition (hot
surface) ensures that the burner ignites
as soon as there is a demand for heat.
1.2.2 Control panel
Temperature control for the water
heater is housed in the control column
(See figure 2). For safety purposes,
heaters are always fitted with two
thermostats: a control thermostat is
adjustable between 40 °C and 80 °C
and a safety thermostat 90 °C. The
control column is fitted with an ON/OFF
switch (I/0). At setting ”I”, the gas
control is activated on the basis of heat
demand from the control thermostat. At
setting ”0” the heater is switched off.
Figure 2 - Top view of the heater
IMD 0392
A
B
1
3
5
4
2
A ) Hot water outlet
B) Cold water inlet
1) Electrical connection
2) ON/OFF switch
3) Ignition controller reset button
4) Temperature regulator knob
5) Safety thermostat reset button