TECH ST-401N PWM User Manual
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TECH ST-401N PWM User Manual

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Summary of Contents for TECH ST-401N PWM

  • Page 1 Tech User’s manual ST-401N PWM - 1 -...

  • Page 2: Safety

    ST-401N User's Manual v 1.0.3 I. Safety Before using the device for the first time the user should read the following regulations carefully. Not obeying the rules included in this manual may lead to personal injuries and device damage. The user's manual should be stored in a safe place for further reference.

  • Page 3: Application

    Tech Application The ST-401N type temperature regulator is intended for the operation of solar collectors for various system configurations. This device controls the operation of collector pumps (or a pump and a valve) on the basis of the measurement of the solar panel temperatures and the accumulation tank (two tanks) temperature.

  • Page 4: User Menu

    ST-401N User's Manual v 1.0.3 IV. User Menu IV.a) Home Page During the regulator's standard operation, the Graphic Display shows the Homepage which displays the diagram of the selected system and: - Operation mode (or alarm type), - Current hour, - Collector's temperature, - Current heat container temperature, - The temperatures of all additional sensors, depending on the configuration.

  • Page 5: Iv.b) Main Menu - Flowchart

    Tech IV.b) Main Menu – Flowchart Due to its multifunctional nature, the controller's menu is divided into the Main Menu and the Service Menu. The Main Menu is used to adjust the controller's basic options such as changing the operation modes, timer settings, date settings, changing the language etc.

  • Page 6: Iv.c.3) Holiday Mode

    ST-401N User's Manual v 1.0.3 IV.c.3) Holiday Mode After the user activates Holiday Mode, the pump operates when one of the following conditions is met: The collector's temperature increases to the overheat temperature value (SERVICE MENU> Solar Collector > Overheat Temperature) reduced by the value of the parameter Delta Holiday (SERVICE MENU>...

  • Page 7: Iv.g) Gsm Module

    Tech IV.g) GSM Module NOTE Control of this type is possible after purchasing and connecting an additional ST-65 control module (which is not added to the controller as a standard). The GSM module is an optional device designed to work in tandem with the collector's controller, enabling remote control over the collector operation with the use of a mobile phone.

  • Page 8: Iv.m) Factory Settings

    ST-401N User's Manual v 1.0.3 program version appears. IV.m) Factory Settings This function allows the user to load factory settings previously recorded in the service menu. V. Service Menu In order to enter the service settings, the user should select the SERVICE MENU option and then select code 0112 using the Plus and Minus buttons and confirm it by pressing the Menu button.
  • Page 9 Tech Set Temperature Maximum Temperature of Tank 1 Tank Hysteresis Minimum Temperature of Tank 1 Cooling Down to Set Value Holiday Delta Accumulation Tank Valve Hysteresis* Set Temperature of Tank 2* Maximum Temperature of Tank 2* Hysteresis of Tank 2*...

  • Page 10: V.b) Accumulation Tank

    ST-401N User's Manual v 1.0.3 V.b) Accumulation Tank This menu allows the user to adjust all parameters related to the tank (heat container). V.b.1) Set Temperature This function is used to adjust the set temperature in the container which leads to the deactivation of the Collector Pump.

  • Page 11: V.c.4) Alarm Hysteresis

    Tech Temperature was introduced. This parameter determines the minimum safe temperature when the glycol liquid does not freeze (temperature measured on the collector). In the case of a significant drop in the collector's temperature (to the value of this parameter), the pump is activated and operates continuously until the collector is heated to a safe temperature.

  • Page 12: V.e.6) Solar Pump Operating Minimum

    ST-401N User's Manual v 1.0.3 The table below contains examples of the coefficient's values depicting the operation of the gear coefficient. Pump's Operation Gear Coeff. 3 Gear Coeff. 4 Gear Coeff. 5 Gear Coeff. 6 Revolutions Δ3 Δ4 Δ5 Δ6 Value of Δ...

  • Page 13: V.f.2) Firing Up The Plt Boiler (Pellet)

    Tech V.f.2) Firing up the PLT Boiler (pellet) This option is used to adjust the voltage-free signal to fire up the pellet boiler. The user sets the Activation Delta, namely the difference between the tank's set temperature and the tank's current temperature which leads to the controller sending a signal to fire up the boiler.

  • Page 14: V.g.4) Calibration

    ST-401N User's Manual v 1.0.3 V.g.4) Calibration This function allows the user to calibrate the difference in temperatures between the sensors. The temperature measurement takes place in the temperature sensor's installation place. There is a possibility of deviations in the flow and temperature measurement at the return from the container. The manufacturer does not recommend changing this setting.

  • Page 15: Updating Software

    Tech V. Updating Software NOTE New software may be uploaded to the controller only by a qualified fitter. After the software is changed, it is not possible to restore the previous settings. In order to upload new software, the controller should be disconnected from the power supply. A USB flash drive with new software should be inserted to the USB port.
  • Page 16 ST-401N User's Manual v 1.0.3 *Schematic Diagram – the scheme does not replace the design of the CH installation It is aimed at demonstrating the possibility for expanding the controller. The presented scheme of the heating installation does not contain cut-off and protecting elements for the execution of its specialist installation.

  • Page 17: Table Of Contents

    Tech Table of contents Safety ..........................2 Application ........................3 III. Principle Of operation ..................... 3 IV. User Menu ......................... 4 IV.a) Home Page ........................4 IV.b) Main Menu – Flowchart ....................5 IV.c) Operation Mode ......................5 IV.c.1) Automatic Operation ....................5 IV.c.2) Collector Defrosting ....................
  • Page 18 ST-401N User's Manual v 1.0.3 V.c.5) Defrosting Time ..................... 11 V.c.6) Collector Delta ....................... 11 V.e) Pumps ........................11 V.e.1) Pump's Revolutions, Adjusted or Constant ............. 11 V.e.2) Collector's Maximum Temperature ................ 11 V.e.3) Solar Pump Deactivation Delta ................11 V.e.4) Solar Pump Activation Delta .................
  • Page 19 Tech Declaration of conformity no 62/2012 The company TECH, based in Wieprz 1047A, 34-122 Wieprz, declares with complete liability that our temperature regulator ST-401N 230V, 50Hz meets the requirements of the Regulation of the Minister of Economy, Labor and Social Policy (Journal of...
  • Page 20 ST-401N User's Manual v 1.0.3 - 20 -...

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