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Summary of Contents for TECH ST-280
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- Page 2 ST – 280 Instructions manual Declaration of Conformity no. 56/2012 We, TECH Sp.j., with our registered company office at Wieprz 1047A, 34-122 Wieprz, Poland declare under our full responsibility that the ST-280 230V 50Hz thermoregulator that we manufacture meets the requirements of the Directive of the Minister of Economy, Labour and Social Policy (Dz.
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Page 4: Use
ST – 280 Instructions manual I. Use The ST-280 universal room thermostat is designed to control and monitor room temperatures and temperatures in central heating and hot water systems. Additionally, the device can run a weekly heating program and be operated with four mixing valves (using ST-61 control modules). - Page 5 The above screen view is the default view for the ST-280 controller under its factory settings. You can change it to Panels screen: The view can be changed with the buttons in the right or left parameters panel. Irrespective of which screen view is set you can change temperature set-points (by pressing the temperature on the screen that you wish to change) without having to enter the controller menu.
- Page 6 ST – 280 Instructions manual Parameters panels: View showing the current and set temperature inside the room - when you press this panel you can change the room set temperature. View showing the current and set temperatures furnace when you press this panel you can change furnace temperature.
- Page 7 View showing the level of fuel in the furnace (view active only when the thermostat receives such information from the furnace controller). Graph showing the current temperatures of the furnace, water heater or inside the room. It provides graphic presentation of temperature changes over time.
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Page 8: Iia. Thermostat Menu
ST – 280 Instructions manual II.a) Thermostat menu During normal operation of the thermostat the graphic display shows the main page. After pressing the menu button the user can access the individual functions of the controller. The buttons are used to navigate the main menu. II.b) Description of controller functions Time After pressing the Time icon in the main menu a panel will be... - Page 9 Setting the current day of week: ➢ You can use this function to set the current day for the thermostat. Setting the alarm clock: ➢ You can use this function to enter settings for the alarm clock. You can set the alarm clock to go off only on selected days of the week (active on selected days) or set it to go off once.
- Page 10 ST – 280 Instructions manual Screen appearance controller time activation of the the alarm. Safety devices After pressing the Security icon in the main menu a panel will be displayed that can be used to change your parental lock settings. When you press the Auto-lock icon a panel will be shown that can ➢...
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Page 11: Screen
To set your PIN code, which you will need to operate the ➢ thermostat (when the lock is enabled), press the PIN icon. Note: Your PIN is factory preset to "0000". Screen After pressing the Screen icon in the main menu a panel will be displayed that can be used to change your screen settings. -
Page 12: Weekly Control
ST – 280 Instructions manual At night ➢ After pressing the At night icon a panel will be shown for adjusting the night time appearance of the screen with the following options available: As at daytime, Clock and Off. Nocturnal screensaver as a clock. The rest of the screen menu can be used to set the times when the ➢... - Page 13 24 hour day and night cycle. First, select a day of the week on which hourly deviations are to be set - to do so, press the Settings icon and then select the day of the week for which you want to enter temperature settings.
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Page 14: Furnace Control
ST – 280 Instructions manual Weekly settings for set-point temperatures help reduce heating costs and ensure that your desired thermal comfort conditions can be maintained around the clock. The correct operation of this feature requires the setting of the current time and day of the week. Furnace control - this function is activated only when a pellet furnace is used Set temperature - press this icon to change the value of your... - Page 15 Temporary operation - select this icon to run the furnace at ◦ scheduled times Continuous operation - select this icon to run the furnace in ◦ continuous mode Settings - press this icon to program the operation of the furnace ◦...
- Page 16 ST – 280 Instructions manual Working hours ▪ Press this icon to set at what times the furnace is to be on and when it is to be off (time intervals set as multiples of 30 minutes) Temp. in room enabled ▪...
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Page 17: Language Selection
Language selection press the Language selection icon in the main menu to access the user language selection panel About the program press this icon to display the logo of the furnace manufacturer and the version of the software. - 17 -... -
Page 18: Settings
ST – 280 Instructions manual 8. Settings – press this icon to change additional parameters. Sensor – after pressing this icon a panel will be displayed that ➢ allows you to change the hysteresis and calibration settings of the temperature sensor of the room thermostat. Sensor calibration. -
Page 19: Alarms
Operating temperature C - 50 VI. Assembly The ST-280 room thermostat is connected to the host controller (mounted on the CH furnace) with a four-wire communication cable and the room thermostat power supply unit. The cable connections of both devices are shown in the diagram below. - Page 20 ST – 280 Instructions manual Room thermostat terminal block Sequence of wires for connecting room unit: WH - white BR – brown GR – green YE – yellow - 20 -...
- Page 21 Notatki: - 21 -...
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Page 22: Table Of Contents
ST – 280 Instructions manual Table of Contents I. Use..................4 II. Principle of operation............4 IIa. Thermostat menu............8 IIb. Description of controller functions........8 1 Time................8 2. Security..............10 3. Screen..............11 4. Weekly control ............12 5. Furnace control............13 6. Language selection.............16 7. - Page 23 Care for the environment is our highest priority. As a manufacturer of electronic devices we are committed to ensure disposal of end-of-life electronic devices and parts in an manner that is safe for the natural environment. Our company has a registration number assigned by the Chief Environmental Protection Inspector.
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