Tech Controllers EU-88 zPID User Manual
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Tech Controllers EU-88 zPID User Manual

Temperature regulator
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EU-88 zPID

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Summary of Contents for Tech Controllers EU-88 zPID

  • Page 1 EU-88 zPID...

  • Page 3: Eu Declaration Of Conformity

    EU DECLARATION OF CONFORMITY Hereby, we declare under our sole responsibility that EU-88 zPID manufactured by TECH STEROWNIKI, head-quartered in Wieprz Biała Droga 31, 34-122 Wieprz, is compliant with Directive 2014/35/EU of the European Parliament and of the Council of 26 February...

  • Page 4: High Voltage

    ATTENTION! IGH 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, check the boiler and inspect wire insulation.
  • Page 5 Description Manual Mode Blow Blow C.H. Pump H.C.W. Pump Encoder knob The ST–88zPID temperature regulator is intended for use with central heating boilers. The regulator is used for controlling the central heating water circulation pump, hot consumption water pump and blow (fan). The EU-88zPID is a PID-basedcontroller using a continuous signal.

  • Page 6: Basic Terms

    and the controller without PID control: You can change all parameters with an encoder knob. Turning the knob allows you to select a function or modify its value, while pressing the knob allows you to enter the function or confirm changed values. To leave any function, turn the knob until you reach the <<EXIT position and confirm your selection by pressing the knob.

  • Page 7: Regulator Functionality

    to the duty mode and the manual operation symbol on the housing will be deactivated. If the controller fails to reach parameters required for entering into the duty mode within 30 minutes from activation of the fire-up function, the "Unable to fire up" message will appear on the display.

  • Page 8: Manual Mode

    symbol is displayed: D – house heating, B – water heater priority, R – parallel pumps, L – summer mode. Pressing the encoder will move you to the main menu. The display shows two options of the menu. To select a different option, turn the encoder knob. .2.

  • Page 9: Fuel Type

    This function allows you to set the blow force of the fan while in the Manual Mode. Pressing the ENCODER activates the fan. The fan will operate until the ENCODER is pressed again. Blow Force Press the ENCODER to enable / disable the central heating pump. C.H.

  • Page 10: Pump Activation

    drops below the activation temperature (minus hysteresis, e.g. 2 C). In this case, the pump will stop at boiler temperature of 33 .7. H.C.W. Pump Activation C.H. Pump Activation H.C.W. Pump Activation H.C.W. Pump C.H. Setpoint D Activation With this function, you can set the temperature that will activate the hot consumption water pump (the temperature is measured on the boiler).

  • Page 11: Main Screen

    heated up before heating up water in radiators. While in the H.C.W. Priority mode, the letter B is displayed in the bottom right corner of the main screen. .8.c) Parallel Pumps H.C.W. Priority C.H. Setpoint R Parallel Pumps * In this mode, the pumps start to run in parallel above the pump activation temperature (set by default to 35 C).
  • Page 12 • C.H. SCREEN C.H. Setpoint R H.C.W. SCREEN This screen displays the current and setpoint C.H. temperatures. By turning the knob, you can change the setpoint temperature. After setting the appropriate value, confirm it by pressing the encoder knob. ➢ H.C.W. SCREEN C.H.

  • Page 13: Thermal Protection

    numerous protections. In the case of an alarm, an acoustic warning is sounded and the display shows a corresponding message. Press the encoder to restore the controller to operation. In the case of the C.H. Temperature Too High alarm, wait until the temperature drops below the alarm value. .13.

  • Page 14: Maintenance

    shuts off the fan.If the boiler temperature reaches 80 C, the C.H. pump will be activated. If the temperature continues to rise, the alarm will be activated at 85 Such condition may appear when the water heater or the pump is damaged or when the sensor has been improperly installed.
  • Page 15 V. Assembly ATTENTION: all assembly works must only be carried out by qualified persons. During assembly, the device must be disconnected (make sure the power cord is unplugged)! ATTENTION: improper cable connections may damage the regulator! The regulator may not be operated in a closed-circuit central heating system. It is necessary to provide for safety valves, pressure valves and a surge tank in order to prevent water from boiling in the central heating system.

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