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Related Manuals for TECH ST-480
Summary of Contents for TECH ST-480
- Page 2 ST – 480 Declaration of Conformity No. 60/2010 Hereby, we declare under sole responsibility that the ST-480 230V 50Hz thermoregulator manufactured TECH, headquartered in Wieprz 1047A, 34-122 Wieprz, is compliant with the Regulation by the Ministry of Economy. (Journal of Laws Dz.U.
- Page 3 ST – 480 ATTENTION! High voltage! Make sure the regulator is disconnected from the mains before working on the power supply (cable connections, device installation, etc.)! All connection works must only be carried out by qualified electricians. Before activating the controller, measure the motor resetting efficiency and inspect wire insulation.
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Page 5: Description
Each driver should be adjusted according to individual needs depending on the fuel type used and the boiler type. TECH shall not be held liable for wrong adjustment of the controller. I.1. Basic terms Operation– once activated the controllers enters the operation mode and a "WORKING"... -
Page 6: Functions Of The Controller
ST – 480 "SUSTAIN" message appears on the display. Both pause time and operation time in sustain mode have to be configured for the temperature to be reduced properly. Functions of the controller This chapter describes the controller functions, methods of changing the settings and use of the menu with the pulser (knob). -
Page 7: Ii.1.Preset Temperature Of The Central Heating System
ST – 480 valve 2 (displays working parameters of the second valve). ➔ NOTE The valve parameter views are available only if the valves have been properly preinstalled and configured by a technician. II.1.Preset temperature of the central heating system The option is used to set the boiler temperature. -
Page 8: Ii.4. Weekly Control
ST – 480 You can start the motor of your selected device by pressing the pulser. The device will remain activated until the pulser is pressed again. Additionally, an option to control the blowing power is available where you can set any fan speed in manual mode. II.4. -
Page 9: Ii.5.Feeding Time
ST – 480 As an alternative to the temperatures being preset separately for individual days, the temperatures can also be set collectively, in the second mode, for the working days (from Monday to Friday) and the weekend (Saturday and Sunday) separately - Set mode 2. Monday - Friday;... -
Page 10: Ii.7. Temperature Alarm
ST – 480 pause length should be adapted to the fuel type combusted in the boiler. Wrong selection of operation and/or pause times may result in boiler malfunctioning i.e. the fuel may be not fully combusted or the boiler may not reach the preset temperature. -
Page 11: Ii.9.B) Boiler Tank Priority
ST – 480 - see Section III.g). The pump will turn off below this temperature (minus a hysteresis of 2°C). Boiler tank priority II.9.b) In this mode, the boiler tank (hot water) pump will be switched on first to run until the set-point temperature is reached (see Section II.e), after which the pump will be turned off and the CH circulating pump will be enabled. -
Page 12: Ii.9.D) Summer Mode
ST – 480 II.9.d) Summer mode Once this function is activated the central heating pump will be off and the DHW pump will turn on above the preset activation temperature (see Section III.h) and will work continuously until the temperature drops below the activation temperature by the hot water hysteresis value or until the following conditions are met: (boiler temperature) + 2°C ≤... -
Page 13: Ii.16 Factory Settings
ST – 480 time a message reading "!-10º" will be shown in the main display next to the preset boiler temperature. II.16 Factory settings The controller is pre-configured for operation. However, it should be adapted to individual needs. Factory settings can be restored at any time. -
Page 14: Iii.a.1 Switch On
ST – 480 III.a.1 Switch on This feature allows you to temporarily make the valve inactive. III.a.2) Set-point valve temperature This setting is used to set the circuit temperature to be maintained by the mixing valve. This is the main temperature based on which the room thermostat reduction function is to be run (see Section III.a.10). -
Page 15: Iii.a.5) Single Step
ST – 480 III.a.5) Single step You can use this function to set a percentage value for a single step in the operation of valve opening, that is to say the maximum percentage value of opening or closing that the valve can move in a single step (maximum movement of the valve in one measurement cycle). -
Page 16: Iii.a.9) Return Protection
ST – 480 the controller based on the outside temperature. In our controller this curve is established based on four temperature set-points selected for their respective outside temperatures. Set-point temperatures must be provided for the following outside temperatures: -20ºC, -10ºC, 0ºC and 10ºC. The more points there are available for constructing the curve, the greater is its accuracy, which allows you to determine its shape in a flexible way. -
Page 17: Iii.a.11) Operation Of Tech Thermostat
(see Section III.a.11) III.a.11) Operation of TECH thermostat This setting is active only if the controller is connected with a TECH room thermostat (with RS communication) and allows a choice in how the thermostat is to work together with the mixing valve: temperature reduction –... -
Page 18: Iii.b) Valve 1
ST – 480 III.a.12) Factory settings This parameter allows you to restore the mixing valve settings saved by the manufacturer. By restoring the factory settings you will not change the valve type setting (central heating or floor type). III.b) Valve 1 NOTE: Control with an additional valve (1 or 2) is only possible after you purchase and connect the controller to an additional control module (ST-61), which is not provided as standard equipment with the controller. - Page 19 If the valve is to be operated with a room thermostat, you should select its type: module controller (traditional two-state type – “from the module”), standard or TECH controller (traditional two-state type – “from the controller”), TECH algorithm controller (RS communication), ...
- Page 20 ST – 480 III.a.7). III.b.10) Weather program (weather control) (Setting as for the main valve – see Section III.a.8). III.b.11) Return protection - (Setting as for the main valve – see Section III.a.9). III.b.12) Additional sensors When two mixing valves are used and you select this function you will be able to select the sensors from which temperature data are to be retrieved for a valve (for return and outside temperature sensors).
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Page 21: Iii.c)Valve 2
ST – 480 III.b.17) About the program When this option is selected the display will show the software version of the active valve module. III.c)Valve 2 All settings for valve 2 are made in the same way as in the case of valve 1. III.1. -
Page 22: Iii.4. Tech Controller
. After TECH Controller option is enabled a letter "P" appears in the upper part of the display in the main screen of the controller. A flashing letter "P"... -
Page 23: Iii.6. Internet Module
ST – 480 of all sensors. After entering an authentication code it is also possible to remotely change the set temperatures. The GSM module can also operate independently from the boiler controller. It has two inputs with temperature sensors, single contact input for use in any configuration (detecting short circuit/opening of contacts) and one controlled output (e.g. -
Page 24: Iii.8. Blowing In Auto Mode
ST – 480 III.8. Blowing in auto mode Automatic operation of the fan can be enabled or disabled using this function. Blowing can be disabled to manually control the natural chimney draught. III.9. Floor pump The function is used to control the floor heating. The user sets the floor heating temperature in the range between 30ºC to 55ºC. -
Page 25: Iii.14. Language Selection
Display contrast III.17 Allows changing the display contrast settings. IV. Service menu A 4-digit code has to be input to enter service functions of ST-480 controller. The code is in possession of Tech Company. - 25 -... -
Page 26: Protections
ST – 480 Protections To ensure maximally safe and unfailing operation, the regulator has a number of protections. In the case of an alarm, a sound signal is activated and an appropriate message is shown on the display. To make the controller return to operation, press the pulse generator. V.1. -
Page 27: Protection Against Boiling Of Water In The Boiler
Maintenance The ST-480 controller must be checked for the technical condition of its wires before and during the heating season. You should also check the mounting of the controller, clean it of dust and other contamination. Furthermore, you... -
Page 28: Assembly
ST – 480 heating pump, hot water pump and blower). Item Specification Unit Power supply 230V/50Hz +/-10% Maximum power consumption Ambient temperature 5÷50 Load on output of central heating pump; domestic hot water pump, floor pump; circulation pump; valve Load on blower output Load on fuel feeder output Temperature measurement range 0÷90... - Page 29 ST – 480 * Pictorial diagram – it cannot replace CH installation project. Its aim is to present how the controller may be expanded. This heating installation diagram does not include protective elements which are necessary to ensure correct installation - 29 -...
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Page 30: Table Of Contents
III.a.6) Minimum opening..............18 III.a.7) Type of valve..............18 III.a.8) Weather program (weekly valve program)......18 III.a.9) Return protection..............19 III.a.10) Room thermostat reduction..........20 III.a.11) Operation of TECH thermostat..........20 III.b) Valve 1................21 III.c)Valve 2.................. 24 III.1. Pump activation temperature..........24 III.2. Boiler hysteresis..............24 III.3. HUW hysteresis..............24 III.4. - Page 31 ST – 480 III.8. Blowing in auto mode............25 III.9. Floor pump................ 25 III.10. Circulation pump...............26 III.11. Clock................26 III.12. Set the date..............26 III.13. Pulser sensitivity...............26 III.14. Language selection............26 IV. Service menu................26 V. Protections................26 V.1. Temperature alarm...............26 V.2. Thermal protection...............26 V.3.
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