heated is accounted by the lower thermo-sensor (t1). When the water temperature is lower than the
one set and the higher than the switch on temperature the water heater will maintain its last state,
i.e. if it has been switched off it will stay off if it was switched on it will stay on. This rule is not
observed only if you change the temperature set, then the heater will turn on and will work to reach
the temperature set.
Note that
"El Setting temp."
must be 5 degrees higher than
"Heater On temp."
It is not possible to
set the temperatures unless that condition is satisfied!
RECOMMENDATION!
Even if you have good solar installation and the season is suitable for using
solar energy for hot water, we recommend the following options:
"Heater On temp."
can be set to a
lower value such as 20 degrees and be measured by
"Middle sensor t5"
. So even if there is no
sun, the water in the tank will not be colder than the tolerable 20 degrees. The heat exchanger for
the solar collector (bottom) shall heat the water in the measurement of the middle thermo-sensor t5
and if the day is with sufficient sun radiation the temperature measured by this sensor is unlikely to
drop more than 20 degrees and the electric heater will not switch on. We recommend that you set
"El Setting temp."
at 40-45 degrees, because if there is no sun the water heater will be heated by
the electric heater to such a temperature that can be used for any household needs, but at the
same time if there is a strong sun it can take as well its heat.
3.10 Pumps control
Temperature settings for switching on and off the pumps of
the solar collector and / or boiler. The parameters are as
follows:
Solar ∆t1 (NHC-H52M-1S / NHC-H52M-2)
The differential temperature between the solar collector and
the water heater for switching on and off of the pump. In
case of temperature difference over the value in the column
"On"
the pump will switch on and run until the difference
falls less than the value set in the column
"Off"
Boiler DHW prior. ∆t2
(NHC-H52M-2)
The differential temperature between boiler and the water heater for switching on and off the pump
in mode with priority for heating the water heater for domestic hot water (DHW). In case of
temperature difference over the value in the column
"On"
the pump will switch on and run until the
difference falls less than the value set in the column
"Off"
CH prior. t4 (NHC-H52M-2)
Adjust the temperature for switching on/off of the boiler circulating pump in heating priority mode for
the heating installation. When the temperature measured by
the probe panel in the boiler (t4) is higher than or equal to
the temperature set in the column
"On"
the boiler pump
shall switch on. When this temperature falls below the value
in the column
"Off"
, the pump will turn off.
3.11 Heating Installation
Check any heat source that works with the water heater. If
you still do not have systems for boiler or solar collector, you
can disable the service from this menu. Furthermore, in
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