The HVAC thermostat allows you to control the air conditioning system (HVAC system) within a zone or room. The HVAC thermostat and the air conditioning system communicate via an HVAC interface (CoolMaster). See HVAC interface.
The HVAC thermostat can be operated locally or remotely via a touchscreen, smartphone or tablet.
Unlike the HVAC thermostat, the thermostat as described in section 6.1 can operate in combination with a heating or cooling module. See Heating or cooling module.
Up to 20 HVAC thermostats may be added in one Niko Home Control installation.
Overview
Operation
Each HVAC thermostat can be programmed independently. There are three adjustable temperature settings (DAY, NIGHT and CUSTOM) and two weekly programmes to choose from. You can use the pre-programmed settings or enter your personal settings. Each temperature setting has two values depending on the operating mode that has been activated (COOLING or HEATING).
In addition, there are three status options (ECO, PROTECT and ON/OFF) as well as the option to enter the temperature of your choice. Statuses ECO and PROTECT cannot be selected via the HVAC thermostat.
Follow the steps below to select one of the temperature settings or pre-programmed weekly programmes:
1 Touch one of the buttons to light up the display. When not in use, the display is dimmed to reduce energy consumption.
2 Press button "C" to view the menu. The following screen will appear:
3 Navigate to the temperature setting or weekly programme of your choice and press button "C".
The following temperature factory settings are pre-programmed into the system:
TEMPERATURE SETTING
COOLING
HEATING
DAY
21 °C
24 °C
NIGHT
18 °C
27 °C
CUSTOM
19 °C
25 °C
The following weekly programmes are pre-programmed into the system:
PROG1
Weekday:
6 AM => 10 PM DAY
10 PM => 6 AM NIGHT
Weekend:
6 AM => 10 PM DAY
10 PM => 6 AM NIGHT
PROG2
Weekday
6 AM => 8 AM DAY
8 AM => 4 PM NIGHT
4 PM => 6 PM CUSTOM
6 PM => 10 PM DAY
10 PM => 6 AM NIGHT
Weekend:
8 AM => 10 PM DAY
10 PM => 8 AM NIGHT
The following settings for the HVAC thermostat are pre-programmed into the system:
Modify temperature settings
Both the temperature setting for COOLING and the temperature setting for HEATING can be modified. To modify one of the temperature settings:
1 Press button "C" until the following screen appears:
2 Press button "C".
The following screen will appear:
3 Navigate to the temperature setting you wish to modify. Press button "C". The following screen will appear:
4 Navigate to the value of the temperature setting you wish to modify (COOLING or HEATING). Press button "C".
5 Enter the temperature setting of your choice using the navigation keys. Press button "C". The new temperature setting is now saved. Select back to go back to the start screen.
There is always at least one degree difference between the value selected for cooling and the value selected for heating. Each temperature setting has two values depending on the operating mode that has
been activated (COOLING or HEATING).
Modifying weekly programmes
Weekly programmes include one or more daily programmes. These can be modified or added individually. To select a daily programme:
1 Press button "C" until the following screen appears:
2 Press button "C". The following screen will appear:
3 Navigate to the weekly programme you wish to modify (PROG1 or PROG2). Press button "C". The following screen appears:
On this screen, the top row represents the week while the bottom row represents the weekend.
4 Select either the week or the weekend if you wish to modify an existing daily programme. Select add if you wish to add a new daily programme.
5 Press button "C".
The daily programme will appear:
You can now modify the daily programme, add new time and temperature settings, or delete existing settings.
To modify a daily programme:
1 Select week or weekend and press button "C". The following screen will appear:
2 Use the navigation keys to navigate through the days of the week. Press button "C" to activate or deactivate the days of your choice.
3 Select back using the navigation keys and press button "C". The following screen will appear:
4 Select the time and temperature setting you wish to modify and press button "C". The following screen will appear:
5 Select the new temperature setting and press button "C". The following screen will appear:
Enter the new time setting using the navigation keys. Press button "C" when you have completed the process.
6 Select the new temperature setting and press button "C". The following screen will appear:
If you do not select a temperature setting, the system will automatically select OFF.
The new temperature setting is now saved and you will be redirected to the previous screen.
7 Select back until you reach the following screen:
8 Repeat steps 4 to 7 for each time setting and temperature setting you wish to modify or add.
Modifying the temperature setting for a certain length of time
The temperature setting can be modified for a certain length of time. To modify the temperature setting:
1 Touch one of the buttons to light up the display.
2 Press any navigation key.
The following screen will appear:
3 Increase or decrease the temperature setting using the navigation keys. Press button "C". The new temperature setting is now saved.
4 Enter the new time setting using the navigation keys. Press button "C".
The temperature setting is now saved and you will be redirected to the start screen.
Consult date and time
The date and time of the Niko Home Control installation are centrally controlled.
You can modify the data in the Niko Home Control user software.
On the thermostat this data can only be consulted.
1 Select DATE on the following screen:
2 You can now see the settings for the year, month, day, hour and minutes.
3 Select back to return to the start screen.
Changing the ventilation speed
Fans in indoor units have three available speed options. To change the ventilation speed:
1 Select FAN on the following screen:
2 Increase or decrease the ventilation speed setting using button “C”. The new ventilation speed setting is now saved.
3 Select back to return to the start screen.
Changing the operating mode (cooling or heating)
To change the operating mode:
1 Select MODE on the following screen:
2 Change the operating mode using button “C”. The new operating mode is now saved.
3 Select back to return to the start screen.
Switching off the HVAC thermostat
When the HVAC thermostat is switched off, all indoor units within the zone of the HVAC thermostat will also be switched off.
When the HVAC thermostat is switched off, only the temperature will be displayed on the screen. This is read from the HVAC system. No temperature will be displayed if the temperature cannot be read.
To switch off the HVAC thermostat:
1 Select POWER on the following screen:
2 Press button "C".
The various options on this screen can no longer be selected:
3 Select back to return to the start screen.
Installation
An HVAC thermostat can be mounted in any room fitted with indoor units of the HVAC system. It controls the heating or cooling for the room in which it is mounted.
The HVAC thermostat only functions properly when the temperature within the room can be measured accurately. Try to eliminate as many factors as you can that may inhibit the thermostat’s ability to accurately control the room temperature.
DO NOT mount the HVAC thermostat:
in direct sunlight.
on an exterior wall.
within the immediate vicinity of a heat generating source (heater, radiator, etc.) or electrical equipment that may radiate heat (TV, computer, etc.).
behind a curtain.
Do not allow air to circulate behind the HVAC thermostat. If needed, fill in any gaps in the flush-mounting box or bus cable duct using PU foam.
