EUROSTER UNI2 Instruction Manual
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EUROSTER UNI2 Instruction Manual

Weather-based heating system controller
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EUROSTER UNI2 – INSTRUCTION MANUAL
MANUFACTURER: P.H.P.U. AS, Chumiętki 4, 63-840 Krobia
Please read the instruction manual carefully to fully use the controller potential and to ensure
proper operation of central heating system.
1. APPLICATION
UNI2 is a universal controller designed for heating systems equipped with:
two central heating circuits with mixing valves (e.g. for heater supply and floor heating)
domestic hot water (DHW) circuit
DHW circulation circuit
1. External temperature sensor
2. Room control unit for circuit 1
3. Temperature sensor for circuit 1
4. Central heating pump for circuit 1.
5. Mixer for circuit 1
6. Supply temperature sensor
7. Room control unit for circuit 2
EUROSTER UNI2
Weather-based heating system controller
Manual version: 01.08.2016
8. Temperature sensor for circuit 2
9. Central heating pump for circuit 2.
10. Mixer for circuit 2
11. Feed pump for DHW tank
12. Temperature sensor for DHW tank
13. DHW circulation pump
14. Temperature sensor for DHW
circulation
1

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Summary of Contents for EUROSTER UNI2

  • Page 1 Manual version: 01.08.2016 1. APPLICATION UNI2 is a universal controller designed for heating systems equipped with: two central heating circuits with mixing valves (e.g. for heater supply and floor heating)  domestic hot water (DHW) circuit ...

  • Page 2: User Interface

    2.3. DHW Circulation Circuit control of weekly schedule  time or temperature-based control of circulation  2.4. Communication possibility to combine several UNI2 and UNI3 controllers  common weather sensor  common supply temperature sensor  common (one) boiler control output ...
  • Page 3 EUROSTER UNI2 – INSTRUCTION MANUAL The symbols shown in the controller mean the following: pump operation mixer operation heating switched on by room control unit active Anti-Stop algorithm error lack of communication DHW disinfection boiler input switched on DHW priority function switched on AF –...
  • Page 4 EUROSTER UNI2 – INSTRUCTION MANUAL 3.6.1. User settings CH1 circuit schedule  It can be used to switch off the circuit for selected time on selected days of the week. circuit temperature  It is the circuit temperature maintained with the use of the mixer. Three settings: for -20, 0, +10 for work with the weather compensator.
  • Page 5 EUROSTER UNI2 – INSTRUCTION MANUAL controller. Settings for CH1 heating circuit and identical ones for CH2 circuit turning the circuit on/off  This item enables to turn off the unused circuit. Mixer  turning the mixer on/off  This option enables to turn the mixer control off if it is not used in the CH circuit.
  • Page 6 EUROSTER UNI2 – INSTRUCTION MANUAL frost protection, anti-frost temperature  The anti-frost algorithm is activated when the temperature of the particular circuit sensor drops below the preset level. In such case both the boiler and the pump are activated. The schedule settings do not affect the operation of this protection.
  • Page 7 EUROSTER UNI2 – INSTRUCTION MANUAL Settings for DHW circulation circuit turning the circuit on/off  This item enables to switch off the circulation circuit if it is not used. Control  temperature-based control of circulation  Circulation may operate according to time or temperature parameters.
  • Page 8 EUROSTER UNI2 – INSTRUCTION MANUAL Enables to switch on communication control. Do not switch on communication when the controllers are not connected into a network. device addresses  Enables to determine the addresses of the individual inputs and outputs. Device addresses...

  • Page 9: Installation

    It is allowed to switch off control units with normally open dry contact. We recommend the use of Euroster devices. Note! Euroster Uni2 controller and the heating device connected to the "Boiler" output must be powered from the same power system phase.
  • Page 10 4.3. Communication 4.3.1. RS-485 connection UNI2 controller is equipped with a possibility to communicate with use of RS-485 interface. The connection should be made with use of a shielded twisted pair in bus topology. A, B and GND terminals of the controller should be connected with A and B cables of the bus and a shield (figure).

  • Page 11: Controller Operation

    UNI3 operates additional heat sources. This function is strictly connected with controlling the main boiler and is not operated by the communication protocol (it does not feature in UNI2). Therefore, in case of using an additional heat source, the operation of the additional heat source must also be switched on in the controller that switches on the main boiler.
  • Page 12 EUROSTER UNI2 – INSTRUCTION MANUAL (although does not exceed the alarm temperature). Otherwise, it is not possible to maintain proper temperatures in the system. 5.2. Heating Circuits Heat in the selected circuit is activated if: the CH circuit is switched on ...
  • Page 13 EUROSTER UNI2 – INSTRUCTION MANUAL 5.6. Boiler Output The Boiler output is used to switch on the heat source, for example gas boiler. It is equipped with 3 contacts, marked NC, NO and COM. They are galvanically isolated from the rest of the system.

  • Page 14: Technical Data

    SIMPLIFIED DECLARATION OF EU CONFORMITY P.H.P.U. AS AGNIESZKA SZYMAŃSKA-KACZYŃSKA hereby declares that the type of EUROSTER UNI2 equipment conforms to the following directives: 2014/35/EU (LVD), 2014/30/EU (EMC), 2011/65/EU (RoHS). The complete text of the Declaration of EU conformity is available at the following Internet...

  • Page 15: Electronic Waste Management Information

    EUROSTER UNI2 – INSTRUCTION MANUAL ELECTRONIC WASTE MANAGEMENT INFORMATION This product is designed and manufactured of high quality materials and components suitable for reuse. The crossed out wheelie bin symbol located at the product means that the product subject selective...
  • Page 16 EUROSTER UNI2 – INSTRUCTION MANUAL WARRANTY CARD EUROSTER UNI2 Controller Warranty Terms and Conditions: 1. The warranty is provided for a period of 24 months from the date of sale. 2. A faulty controller with the warranty card should be delivered to the point of sale.

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