DTC 100/2
7
Setting the temperature in the DHWS
By turning the right button (2) on the cover of the thermostat, you can set the maximum
temperature of the water in the DHWS (Domestic Hot Water Storage) between 10 and
90°C. When the set temperature is achieved, the thermostat closes the valve and turns
off the pump. This allows connection of appliances using hot water while operating, such
as the washing machine and the dish-washing) While using this option, attention needs to
be paid to the allowed input temperature of the water, as prescribed by the manufacturer
for each individual appliance.
WARNING:
If heating the water in a system including a heat pump, it is necessary to consult the
heat pump manufacturer concerning the appropriate coupling. It is forbidden to switch on
the thermostat, where this, provided that the temperature of the water is risen, turns the
compressor off.
With the appliances using hot water, additional protection against overheating is required,
which is to close the supply of water in case of thermostat failure.
Setting the temperature difference (the switching difference)
The temperature difference between the source of heating and the consumer (the DHWS)
is set to the value required by the mechanical part of the installation by means of a screw-
drive and the potentiometer (3) on the cover of the thermostat.
When using collector heating this difference is between 5 and 10 K, depending on the
length of the tubes and the quality of their insulation. If the tubes connecting the collec-
tors with the boiler are insulated and their total length does not exceed 15 meters, the
difference can be 5 K, whereas it needs to be increased in proportion to their length and
poorer insulation.
