INSTAT+ the programmable room thermostat allows you to set time periods (up to 6 per day) and temperatures to suit your own lifestyle. Once fully installed and powered the device will automatically set the correct time and in auto mode will control your heating system according to pre-set program 1 (see 7.). The temperature is controlled by sensing air temperature, switching on the heating when the air temperature falls below the thermostat setting, and switching it off once this set temperature has been reached.
NOTE:
The adjusted values (while programming) will be accepted automatically after ~5 sec.
How to insert batteries (2 AA 1,5V Alkaline)
Automatic mode (AUTO)
In this mode, the room temperature is automatically controlled according to the pre-set program. The pointer indicates the mode is set to AUTO. The number at the bottom right indicates the program event during the day. (Fig. 1)
How to change the temperature for a short period of time (override)
When in AUTO mode, you can override the existing temperature setting for a short period of time. Press the + or – buttons to change the temperature setting. While in temperature override the pointer indicates both AUTO and MAN (Fig. 2). When the next programmed time/temperature event is reached, the device will revert to the AUTO mode.
How to set a constant room temperature (manual operation)
In this mode, a constant temperature can be set, and the pre-set program is ignored. The temperature last selected is chosen as the initial temperature.
How to activate this mode
Press the < button until the pointer indicates MAN (Fig. 3). Set the temperature by pressing the +- button Exit the mode by pressing the > button
How to set the room temperature for a set time (holiday/party mode)
In this mode, the temperature can be set for periods of time ranging from a few hours up to 199 days, e.g. when you are away from home for longer periods of time (holidays). The remaining hours/days are shown. Time periods between 1 hour and 23 hours and 1 day and 199 days can be set.
How to activate this mode
Press the < button until the pointer indicates the suitcase icon (Fig. 4)
Once you have set your time period, the time will flash for 10 seconds and then start the holiday/party period.
To exit this mode, press < or >.
When hours have been set, the controller will return to AUTO mode once the set hours have passed.
When days have been set, the controller will return to AUTO mode at midnight of the last day.
Note: the current day (today) must be included in the setting. e.g. 1 day is set; the controller returns to AUTO today at midnight.
Pre-set programs
There are 3 pre-set time/temperature programs that are already available in the controller. Pre-set program 1 (as shown below) is the default. Therefore, if pre-set program 1 is the best program to suit your lifestyle, you do not need to change the time/temperature settings on the device. To select another program see 9.3
If operating mode “7 days” is chosen (see installer options, option 1), the days can be selected as blocks or individual days (Fig. 5 to 8). The blocks are selected by repeatedly pressing the > button.
Note: To facilitate programming, blocks of days with the same times/temperatures can be formed before starting.
Program 1 (home during the day)
Program 2 (home for lunch and on weekends)
Program 3 (at work all day)
How to adjust the pre-set time/temperature program to suit personal needs
The controller offers a number of options that can be changed by the user (see Table 1.). To activate the menu, in AUTO Mode press the < and > buttons simultaneously for 3 seconds elect an option by pressing the < or > button Change an option by pressing the +- button Press < or > to accept each change. To exit the menu, press the < and > buttons simultaneously for 3 seconds. If no button is pressed within 2 minutes, the device will return to auto mode.
How to change from 24h to 12h clock (option 1, table 1)
Shows the time as 24 hours or 12 hours
How to change the manual set point temperature (option 2, table 1)
Setting the temperature used when the manual mode is selected for the first time, e.g. 20°C
How to change to another pre-set program (option 3, table 1)
Selection of a pre-set program to be used for programming events (see 7.).
How to change the number of events per day (option 4, table 1)
2, 4 or 6 time/temperature events can be selected for all days according to individual need (not used events will be skipped). If there is no need for e.g. 6 events, choosing 4 makes programming easier.
How to switch on/off the automatic daylight savings time/standard time change (option 5, table 1)
You can select whether or not you want the time change to be carried out automatically. If it is not carried out automatically, the time has to be adjusted manually (see 11.).
How to change the temperature display (option 6, table 1)
The temperature display can be adjusted to individual needs, e.g. 3 = +0,3°; -15 = -1,5°.
How to restore the built-in time temperature programs (option 7, table 1)
Restores the pre-set programs to its original factory settings.
How to switch off the programmable thermostat (option 8, table 1)
When switched off, the programmable thermostat no longer controls the room temperature, and the room is not heated. The display will show OFF, and the buttons will not function. In the installer options (refer to Installation Guide) you can select whether or not frost protection is to active (heating is called for if the temperature falls below 5°C) when the programmable thermostat is switched off.
How to change the batteries
When the batteries start to run low, the battery icon (refer to Fig. 1) starts to blink. The controller continues to function normally. After roughly 6 months, the device will cease to function and will permanently display the battery icon (Fig. 9). Disposal of batteries according to legislation.
How to change the time, day, month, and year
The controller comes with a pre-set clock, which also automatically switches from daylight savings time to standard time. There should be no need to change these settings. However, should the need arise, the
settings can be changed in the following way.
Activate the clock mode
Select DAY with button > and then Sunday with button + With the button,> move through all 6 time/temperature events (without any modification) until the pointer indicates the clock icon. The time will now flash.
| Table 1 User options | ||||
| User options | Description | Select between | Default | |
| 1 | Change 12 h or 24 h clock | 12 | 24 | 24 |
| 2 | Change he manual set point temperature | 7 | 32 | 20 |
| 3 | Change to another pre-set program | 1 | 3 | 1 |
| 4 | Change the number of program events per day | 2, 4 or 6 | 6 | |
| 5 | Switch on/off automatic daylight savings time/standard time change | ON | OFF | ON |
| 6 | Change temperature display | –5.0 | 5.0 | 0.0 |
| 7 | Restore the built in time temperature programs | ON | OFF | OFF |
| 8 | Switch off the thermostat | ON | OFF | OFF |
Warning!
Switch off the mains supply before removing an existing room thermostat or installing this controller.
Caution!
The device must only be opened by a competent electrician and installed according to the wiring diagram in the housing cover or this guide. The existing safety regulations must be complied with. Appropriate installation measures must be taken to achieve protection class II. This electronic device which can be installed independently may only be used to control the temperature in dry and enclosed rooms in a normal environment. The device is radio-interference suppressed according to VDE 0875 T.14 resp. EN 55014 and functions according to the method of operation 1C (EN 60730).
Applications
The electronic thermostat INSTAT+ 2R can be used for temperature control together with:
Installation location:
The device should be installed in a location in the room that:
The controller must be installed directly onto the wall or on a flush-mounting socket.
Attention: The settings should only be carried out by the installer only, as settings may affect the functions and security of the heating system. A list of Installer options sees Table 2. To activate the menu, press the < and + buttons simultaneously for 5 seconds Select an option by pressing the < or > button Change an option by pressing the +- button Press < or > to accept each change. To exit the menu, press the < and + buttons simultaneously for 5 seconds. If no button is pressed within 2 minutes, the controller will return to auto mode.
Kind of program (option 1, table 2)
The operating mode of the controller is set via this function. 7 days (7d): Different time/temperature settings can be chosen for each day individually. 5/2 days (5:2):
Different time/temperature settings can be chosen for the weekdays (Monday to Friday) and the weekend (Saturday and Sunday) in this mode. 24 hours (24h):
The same time/temperature settings are used for all days of the week in this mode. 3.2 Access protection lock/child lock (option 2, table 2)
When this function is activated, all buttons will be locked. To switch off the protection lock, enter the installer options and set option 2 to OFF.
Frost protection (option 3, table 2)
The frost protection of the controller can be activated via this option.
Frost protection will switch on the heating if the room temperature falls to 5°C and will then control the temperature at 7°C.
When in Off mode frost protection will still be active.
The low and high limit set points (options 4, 5, table 2)
These limits can be used to prevent temperatures from being set too high or too low. The set point default values are 32°C (high limit) and 7°C (low limit).
Frost protection (option 3, table 2)
The frost protection of the controller can be activated via this option. Frost protection will switch on the heating if the room temperature falls to 5°C and will then control the temperature at 7°C. When in Off mode frost protection will still be active.
The low and high limit set points (options 4, 5, table 2)
These limits can be used to prevent temperatures from being set too high or too low. The set point default values are 32°C (high limit) and 7°C (low limit).
Optimum start (option 6, table 2)
If this function is activated, the controller will automatically calculate the warm-up time for the heating system in order to achieve the desired temperature for each event. This function is a major energy-saving factor.
Note: This function is only possible in the AUTO mode. After commissioning, it takes a couple of days for the controller to gather enough information to correctly calculate this function.
Heating/cooling (option 7, table 2)
Use this function to select whether the controller is used exclusively for either heating or cooling applications.
HEATING: The relay will switch on when the temperature falls below the set point.
COOLING: The relay will switch on when the temperature rises above the set point.
Valve protection (option 8, table 2)
If valve protection is selected, the controller’s relay will be switched on once a day at 10 o’clock.
This function is designed to prevent the valves and pumps from getting stuck during the summer months. If this is required, select On in the installer options. The operating period can be chosen via option 9.
Valve protection time (option 9, table 2)
The valve protection time can be set between 1 and 5 minutes (default: 3 minutes).
Emergency heating in case of sensor failures (option 10, table 2)
The following message is shown in case of sensor failures: E1 for an internal sensor failure
A sensor failure can have the following effects
| Table 2 Installer Options | ||||||
| Installer- Options | Descriptions | Select between | Default | |||
| 1 | Kind of program | 5:2 days (5:2) | 7 days (7d) | 24 hours (24h) | 7 days | |
| 2 | Access protection lock (child lock) | ON | OFF | OFF | ||
| 3 | Frost protectio | ON | OFF | ON | ||
| 4 | Low limit set point °C | 7 | High limit | 7 | ||
| 5 | High limit set point °C | Low limit | 32 | 32 | ||
| 6 | Optimum start | ON | OFF | ON | ||
| 7 | Heating/Cooling | Heat | Cool | Heat | ||
| 8 | Valve protectio | ON | OFF | ON | ||
| 9 | Valve protection time | 1 … 5 | 3 | |||
| 10 | Emergency heating (sensor failure) | ON | OFF | OFF | ||
| 11 | Application type | Radiator (0) | Water Floor heating (1) | 0 | ||
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