Naturela NHC-H42-2 User Manual - page 13
Work parameters settings
The controller has options for settings for most of the preset parameters. While the screen is in
Design II and the water heater is on, press and hold the F button for more than 1.5 seconds to enter
the settings mode. The only exception of the requirement for the water heater to be on is when the
time and date are blinking, i.e. they haven't been set yet. In this case you can enter the time setting
mode even if the water heater is off. While in settings mode the screen has the Design III view.
The screen has a similar view for all of the setting mode menus. Pressing the buttons
▲
or
▼
changes the value of the currently blinking parameter. Press the View/Enter button to select the
next editable value of the same screen. Press the F button to save the changes made on this
parameter and to proceed to the next settings menu, if any. If there are no more settings, the display
goes back to the main screen view. If no buttons have been pressed for awhile, the controller leaves
the setting mode without saving the changes made on the current parameter. Setting menus appear
in the following order:
1
Setting the temperature for turning on and off the electrical
heater, if it has been activated.
•
It turns on when the temperature, measured by Sensor 5
(if the solar installation is activated) or measured by
sensor 1 (if the solar installation is deactivated), is lower
than Heater On.
•
It turns off when the temperature, measured by Sensor 1
is higher than Heater Off
2
Setting the time intervals that allow using the electrical heater if
the temperature of the water, measured by Sensor 1 is lower
than Heater Off–5°C. The rest of the time the electrical heater
turns on if the temperature of the water, measured by Sensor 5,
is lower than Heater On
3
Setting start time for the day and night electricity rates. An
important information for correctly reporting the consumed
electricity.
4
Setting the differential temperatures between the solar collector
and the water heater for turning the pump on and off. If the
temperature difference between the collector and the water
heater is more than Pump On, the pump turns on and works
until the difference is less than Pump Off.
NHC-H42-2 Reference Manual ver 1.6
стр. 13 / 18
Title of the menu
Parameter's value