Setting the temperature
When the water heater is on, by pressing any of the buttons “
▲
” or “
▼
”, the mode
Changing the set temperature
activates. Further pressing the same buttons changes the
temperature setting. By pressing the
View/Enter
button, the new setting is saved and the display
goes back to its previous state. If no button has been pressed for 5 seconds, the display goes back to
its previous state, but the changes won't be saved. If one of the buttons “
▲
” or “
▼
” is pressed and
held for more than 0.8 seconds, the value of the temperature automatically increases or decreases
with 3 digits per second. Pressing “
▲
” and “
▼
” at the same time and holding them for more than
0.8 sec. turns on the ECO mode and returns the main screen. The ECO mode can be activated
directly by pressing both buttons while on main screen (without entering the setting Changing the
set temperature). The temperature can be adjusted from 20 to 75°С.
Safety modes
No matter whether the water heater is on or off, or which mode is currently activated, the
temperature regulator constantly monitors the temperature both of the water in the tank and of the
solar collector, and if it is necessary activates safety mode to protect the tank or the collector of
freezing or safety mode to protect the collector of overheating. Therefore, if there is a forecast for
low temperatures or a chance for the collector to get overheated, it is recommended not to turn off
the power of the water heater!
Setting mode
Most of the water heater's predefined parameters could be adjusted. Entering Setting mode is
available from
Design II
of the screen, when the water heater is on, by pressing and holding for
more than 1.5 seconds the
Mode/Set
button. Exception of the rule for the water heater to be on, is
the setting of the time and date, when they are blinking, i.e. they haven't been set yet. In this case
this setting could be done even if the water heater is off. By entering the Setting mode, the screen
goes to
Design III
. Pressing
Mode/Set
button forwards to the next setting screen. The order of the
settings is the following:
1
Setting time
NHC-H41-2 Reference Manual ver 2.2
page 12 / 15
