temperature is detected in them.
•
Protects the water heater or the solar collector of freezing.
•
Protects the solar collector of overheating. If the hot water in the water heater is not going to
be used for a long time, the Holiday mode might be activated, which automatically takes the
heat off from the water heater during the night, so it can be warmed up again on the next day
and takes the heat off from the solar collector.
•
Information about the condition of the anode protector.
•
Information if a leakage from the heater to a hull higher than 30mA occurs and
automatically turning off the water heater when such a leakage is registered.
•
Uses self adapting and energy saving algorithm for heating up the water with the electrical
heater.
•
Diagnostics of all used circuits.
•
Two timers which allows you to set up the work time of the electrical heater. This might be
used, for instance, for automatic work only in the time interval with cheaper electricity rates
or to set up a time when the water heater starts being electrically heated up if the sun wasn't
strong enough by this time.
•
System time and date. Knowing what time it is while you are in the bathroom is really
convenient.
•
Measures the consumed electricity in kWh and shows it in a digital view for two rates or in a
graphic view hour by hour for the whole day.
•
Shows at the same time the temperature of the water in the upper and the bottom section of
the water heater, the temperature in the heat exchanger of the solar collector and the
temperature of the water in the boiler.
•
Monitors the condition of the heater and shows a message if the water is not heated up for
the presumed time.
Connection scheme of NHC-H41-2 with a water heater
NHC-H41-2 Reference Manual ver 2.2
page 2 / 15
