than the set critical minimum temperature and it is possible the fluid to be frozen.
Only modes with electrical heating and boiler heating will work. Should check the
system completeness, before turning it on again.
■
Overheat2
– The temperature sensor of the collector has registered temperature
higher than the set critical maximum temperature. Only modes with electrical heating
will work. Should check the system completeness, before turning it on again.
■
S4 E1
– A breakdown in the temperature sensor in the boiler. It is broken or
disconnected. Only modes with electrical heating and solar heating will work.
■
S4 E2
– A breakdown in the temperature sensor in the boiler. It is on short circuit.
Only modes with electrical heating and solar heating will work.
■
S4 Frost
– The temperature sensor of the boiler has registered temperature lower
than the set critical minimum temperature and it is possible the fluid to be frozen.
Only modes with electrical heating and solar heating will work. Should check the
system completeness before turning it on again.
* Consummation for the last 24 hours
The last system information, Consummation for the last
twenty-four hours, displays on full screen a diagram of
the heater's work for the day, hour by hour. On the top of
the screen is shown the date, which the information is for
and the field in the bottom left corner, where the rest of
the parameters appear, displays the total consumed
electricity for that date. The information appears for 30
seconds or until a button is pressed, then the screen goes
back to its initial state.
Important
If the consumed daily or night electricity is displayed in the field
Measured or set
parameters
, pressing and holding the
View/Enter
button for more than 1.5 seconds will reset this
information.
The information about the work intervals of the heater contains the real work intervals of
the heater, as a combination of the two set intervals. When the interval is not activated, instead of
its start and end, “-- : --” is displayed. If both of the intervals are not activated or they cover the
whole day, the heater will work with no restriction.
System time
field
shows the current time. If the clock is not set, this field blinks.
The temperature regulator has a
battery, which keeps the timing on if the power supply is off for short time. The maximum time for
keeping the timing on is 18 hours, and then the clock turns off and needs to be set again.
Water temperature
field
gives information about the current temperature of the water in the upper section of the tank.
Should have in mind, that if a breakdown of the temperature sensor in the upper section of the tank
occurs, the data from the temperature sensor in the bottom section of the tank will be displayed.
And the hot water goes to the upper section and from there to the pipeline installation of the house.
Therefore, it is possible, despite of the displayed by the temperature regulator low temperature, the
real temperature of the water to be much higher. This is a restriction of the temperature measuring
method and it is necessary to pay attention when using only not cooled hot water.
NHC-H41-2 Reference Manual ver 2.2
page 9 / 15
