Naturela NHC-H41 User manual - page 14
9
Setting temperature for protecting the collector from
overheating and a critical maximum temperature. On getting the
Pump On temperature, the pump turns on to take the heat from
the collector to the water heater. This protection works no
matter the current work mode!!!
10
Setting display contrast.
Caution:
•
Using the electrical power panel for turning on and off the water heater, doesn't change the
set temperature and the water heater's last work mode before the turning off. If the water
heater was on, by turning it off and then on again, it will be on the same mode with the same
set temperature.
•
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.
Use the Holiday mode, which automatically protects the whole solar installation.
•
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 a 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!
Water heater initial settings
The temperature regulators NHC-H41 are designed for different types of boilers. The
necessary personalization is not made in the factory and after you instal your water heater it is
required to enter some information about the heater's power and presence of an anode protection (if
the water heater is made of stainless steal it has no anode protection). By default are entered
parameters for a water heater with 3kW heater and anode protection. If your water heater is the
same, no additional personalization is required.
When the water heater is off, pressing and holding „F” and “
↵
” at the same time for more
than 4 seconds enters the Initial settings mode. It is easier to do this as you press “F” first and then
“
↵
”. After the button combination is recognized, first the screen displays the version of the
controller and the software:
NHC-H41-2 Reference Manual ver 2.2
page 14 / 15