15
Electric module
ME 0040/1030/1045/1060
ME 1090/2090/2120/2180
EN
3 Operation
At the front of the heating module housing there is
a LED indicator informing the user about requesting
the heater to work and a temperature regulation knob
(
Fig. 5
and
Fig. 6
). Blinking of the diode indicates the
heater operation. Temperature setpoint adjustment is
made manually using the knob in the range from MIN
(minimum setting) to MAX (maximum setting). Tem-
perature adjustment range is 30-75 °C. For optimal
life of the heater, long-term operation at the maximum
setpoint is not recommended.
Fig. 6
Front of the ME 1030 module housing.
Fig. 7
Front of the ME 0040 / ME 1045 / ME 1060
/ ME 1090 / ME 2090 / ME 2120 / ME 2180
module housing.
Temperature adjustment
Thermal protection
Frost protection
Temperature
regulation knob
STB cover
Temperature
regulation knob
Signal diode
Signal diode
The heating element is equipped with an integrated
temperature limiter (i.e. STB), which protects the heat-
er against overheating above 87ºC (ME 1030) or 98ºC
(ME 0040/1045/1060/1090/2090/2120/2180), and dam-
age. If the temperature limiter is triggered (the heating
element stops heating), disconnect the heating element
from the power supply and determine the cause of op-
eration of the limiter. To restart the heater, remove the
temperature regulation knob (ME 1030) or STB cover
(ME 0040-2180). The button (reset) located underneath
must be pressed using a flat, thin screwdriver. Put on
the knob or STB cover and connect the heating element
to the power supply. After cooling the water to a temper-
ature of approx. 65°C, the heater returns to the normal
mode. The reasons for the temperature limiter operation
may be water temperature rise above 98 °C caused,
among others, by a thermostat failure, supply of high
temperature water or overheating it due to the action of
another source (e.g. coil pipe). Moreover, water hard-
ness in the part of the heating module can also cause
the operation of the STB limiter.
The thermoregulator installed in the heater has a frost
protection function to keep the water at +7 ºC. This
function works after turning the knob to the “ ” posi-
tion (as far as it will go to the left). This position is used
to turn off the heater, also additional protection against
freezing.
IMPORTANT
Operation of the STB temperature limiter is a warning.
Identify and eliminate the causes, then press the „reset”
button to return to default settings. If after removing the
causes of operation of the limiter and resetting it the
problem persists, contact an authorized service centre.
CAUTION
The electrical module must not be connected to mains
if the tank is empty or if the heating element is not com-
pletely immersed in water. If it is necessary to drain the
tank (e.g. for the risk of water freezing). first, disconnect
the heating module from electrical power supply or dis-
connect the protections in the other modules.
CAUTION
In the case of heating water using a coil supplied from
e.g. slow- burning boiler, after the heating season,
the correct functioning of the heating element should
be checked. If malfunctions occur (the heater does not
heat), follow the steps described in the chapter entitled
„3 Service”, sub-chapter „Thermal protection”.
CAUTION
The manufacturer is not liable for damages caused by
interruptions in electric energy supplies.