Naturela NHC-H42-2 User Manual - page 15
•
When you are not using hot water for a long time and the sun is strong in this period, do not
turn the water heater off from the electrical power panel. This might damage the collector.
The water heater automatically switches to Holiday mode during the night to transfer the
heat and therefore, it could take the heat energy again on the next day which automatically
protects the whole solar installation from overheating.
•
The water heater's clock is run by a lithium battery even if the water heater is off from the
electrical power panel or failure of the power supply network occurs (no electricity). For
the battery not to run down if the water heater is off for long time, when there is no power
supply for more than 18 hours, the clock stops and on the next turning on, the time won't be
correct. This case is indicated by blinking time and date. A new time setting is required!
Configuring the heat sources – System Settings.
If you still have no boiler or solar installations, you can deactivate them. Moreover, if you don't
want the water heater to use electricity for the electrical heater, you can disable it too. To do so the
water heater must be off and the screen view – in Design I. Then press and hold for more than 2
seconds the F button to enter the Settings mode. Then press the F button three more times to go
through the first three setting menus.
To deactivate any of the heat sources, uncheck the box on the relevant line, using the buttons
▲
or
▼
. Of course, if you need to activate them again, you should have to check the box again. Switch to
the next line by using the View/Enter button. To save the changes and exit the setting menu, press
F.
If the clock is blinking, i.e. it is not set, you would have to do this first and proceed to
System
Setting after that
.
Mind that if you deactivate the solar collector, this disables its safe modes for freezing and
overheating too!
NHC-H42-2 Reference Manual ver 1.6
стр. 15 / 18
The electrical heater
is disabled
The solar installation
is activated
The boiler installation
is activated