TECH ST-450zPID User Manual
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TECH ST-450zPID User Manual

230v 50hz thermoregulator
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Summary of Contents for TECH ST-450zPID

  • Page 2 Declaration of Conformity No. 61/2010 Hereby, we declare under sole responsibility that the ST-450 zPID 230V 50Hz thermoregulator manufactured by 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 – 450 z PID 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.

  • Page 5: Description

    Exemplary view of the main screen: The ST-450zPID controller is a regulator with a continuous output signal utilizing the PID regulation algorithm. In this type of controller the blow-in power is calculated on the basis of the measurement of the temperature of the boiler and the temperature of flue gas measured on the outlet of the boiler.

  • Page 6: Basic Terms

    Each controller should be set individually for personal needs, depending on the type of fuel used for burning as well as the type of the boiler. The TECH company shall not be liable for any incorrect settings of the controller.

  • Page 7: Functions Of The Regulator

    ST – 450 z PID stored in the installation menu >> Supervision mode) to reduce the circulation water temperature and a message “PID:SUPERVISION” appears in the display. Damping – If the flue gas temperature drops below the predefined value and does not rise above that level for a period of 300 seconds (factory-set damping time) the controller enters the damping mode.

  • Page 8: Ii.4. Preset Temperature Of The Central Heating System

    ST – 450 z PID NOTE: To enable the views showing valve parameters the respective valves must be pre-installed and configured properly by a installation fitter. II.3. Firing This function helps to fire the boiler easily. After initiation of fire the user will start the automatic firing cycle.

  • Page 9: House Heating

    ST – 450 z PID Manual operation module. In this function, each executive device (the feeder, the blow-in, the CH pump, the HUW pump, the circulation pump and the floor pump) is activated and deactivated independently of the others. Pressing the pulse generato activates the engine of the chosen device. This device remains activated until the pulse generator is pressed again.

  • Page 10: Pumps In Parallel

    ST – 450 z PID pump will be turned off and the CH circulating pump will be enabled. The central heating pump will run all the time until the boiler tank temperature drops below its set-point by the hot water hysteresis value. At that moment the CH pump will turn off and the HW pump will turn on (both pumps operating alternately).
  • Page 11 ST – 450 z PID Step #1: The user needs to set current time and date first (Installer menu > Clock). Step #2: The user sets temperature values for individual days of the week (Set mode 1): Monday– Sunday Select specific hours and required deviations from the preset temperature (how many degrees the temperature should rise or drop) for each day of the week.

  • Page 12: Ii.9. Fuel Size

    ST – 450 z PID temperature. This, additionally, indicates that the weekly control is active. Data deletion function is a simple method to remove all previously saved weekly programme settings to enter new settings. II.9. Fuel size This option is used to select one of two fuel sizes: coarse or fine. Appropriate blowing power and fuel supply rate are selected for each of the sizes.

  • Page 13: Installation Menu

    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 14: Opening Time

    ST – 450 z PID remove it completely. Once it is re-enabled no registration is required 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: Type Of Valve

    ST – 450 z PID 7. Type of valve You can use this option to select the type of valve: central heating or floor type. 8. Weather program (weekly valve program) In order to enable the weather function an outdoor sensor should be installed in a place not exposed directly to sunlight or weather conditions.

  • Page 16: Return Protection

    ST – 450 z PID = -20ºC, = 0ºC, = -10ºC, = 10ºC, – set-point valve temperatures for their corresponding outside temperatures: X After weather control is enabled the valve set-point parameter is calculated based on the heating curve. By changing this parameter you can decrease or increase all the weather control settings.

  • Page 17: Room Controller - The Option Is Used To Define The Room Controller Type To Operate With The Valve. The Following Options Are Available

    Room temperature difference – The setting determines the unit change in current room temperature (accurate to 0.1°C) which triggers the predefined change in the valve preset temperature (The function is active with TECH room controller only). 11. Factory settings This parameter allows you to restore the mixing valve settings saved by the manufacturer.

  • Page 18: Registration

    ST – 450 z PID which is not provided as standard equipment with the controller. In order to control two valves you need to connect two ST-61 modules. The options presented in this chapter are used to adjust the operating settings of an additional mixing valve.

  • Page 19: Room Thermostat Reduction

    ST – 450 z PID 12. Room thermostat reduction Setting as for the main valve – see Section III.4.10 13. Factory settings Settings as for the main valve – see Section. III.4.11 14. Valve removal This function is used to completely remove a valve from the controller memory.

  • Page 20: Iii.8. Internet Module

    ST – 450 z PID Internet module III.8. NOTE: Controlling of this type is possible after purchasing and connecting, to the controller, the additional control module ST -500 which is not attached to the regulator as a standard feature. The Internet module is a device enabling remote control of the boiler over the Internet or local network .

  • Page 21: Iii.11. Feeder In Auto Mode

    ST – 450 z PID After the set-point temperature (i.e. 55 C) is reached the hot water pump will turn off causing the central heating pump to turn on. The hot water pump will be switched on again when the temperature drops back to 50 III.11.

  • Page 22: Iii.14. Circulation Pump

    ST – 450 z PID III.14. Circulation pump The function allows controlling the pump which is used to mix hot water between the boiler and the domestic hot water taps. After the function is activated the user sets the 24h activation cycle or pause cycle accurate to 30 minutes.

  • Page 23: Iii.18. Language Choice

    ST – 450 z PID III.18. Language choice The user can choose the language version of the controller. III.19. PID selection After the PID control function is disabled the controller will operate as a normal two-state controller and the below listed additional functions will appear in the main menu: Feeding time •...

  • Page 24: Service Menu

    (detailed settings see Item II.15) After TECH Controller or standard 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 25: Protections

    ST – 450 z PID a four-digit code. This code is known to the boiler manufacturer and the company Tech. V. 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.

  • Page 26: Protection Against Boiling Of Water In The Boiler

    ST – 450 z PID installation. Protection against boiling of water in the boiler V.5. This protection is applies only to reboiler priority operation mode. When the set reboiler temperature is e.g. . 55 C and the actual temperature in the boiler increases up to 62 C (this is the so-called the priority temperature), then the controller will turn off and the feeder the fan.

  • Page 27: Maintenance

    ST – 450 z PID Maintenance The ST-450zPID 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.
  • Page 28 ST – 450 z PID - 28 -...

  • Page 29: Table Of Contents

    ST – 450 z PID I. Description.................. 5 I.1. Basic terms................6 II. Functions of the regulator............7 II.1. Homepage................7 II.2. Screen view................7 II.4. Preset temperature of the central heating system......8 II.5. Set-point DHW temperature............8 II.6. Manual operation..............8 House heating................9 Boiler tank priority..............
  • Page 30 ST – 450 z PID 14. Valve removal..............19 III.7. GSM module..............19 III.8. Internet module..............20 III.11. Feeder in auto mode............21 III.12. Blowing in auto mode............21 III.13. Floor pump..............21 III.14. Circulation pump...............22 III.15. Clock................22 III.16. Date setting..............22 III.17. Pulser sensitivity...............22 III.18.
  • Page 31 ST – 450 z PID We are committed to protecting the environment. Manufacturing electronic devices imposes an obligation of providing for environmentally safe disposal of used electronic components and devices. Hence, we have been entered into a register kept by the Inspection For Environmental Protection.

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