E-Top RS485 Modbus Wired Wireless 8 Zones Wiring Centre for water underfloor heating control

Short Description:

HR-03 is a 8 zones central control box, ideally situated next to the underfloor heating manifold. There are  two types, wired and wireless.   Modbus function is ok to add for central control from PC.

Users can connect all the room thermostat to this signal concentrator for each zone actuator control.   On demand from any zone, a 230v output is provided to switch the relevant zone actuators, underfloor heating pump and valve. A volt free connection is supplied for the boiler, making it compatible with almost all types of boilers.  For wifi remote control need, we can select thermostat type with wifi .


  • Item No.: HR-03
  • Supply voltage: 230Vac
  • Boiler Ouput: Voltage-free (default) or 230V
  • Thermal actuator/Valves Output: 230V
  • Multi-Zones: 8 Zones
  • WIFI Function : Optional
  • Opentherm Protocal : Optional
  • Cetificate: CE, ROHS, RED
  • Product Detail

    Technical Data

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  • Name  New Wired 8 Zones signal concentrator wiring centre for water underfloor heating 
    Power Supply 230Vac
    Boiler Output Voltage-free output
    Pump Output 230Vac output
    Boiler & Pump Delay Time N/A
    Thermal actuators  Each zone control up to 5pcs; NO/NC, support 230Vac or 24Vac
    Ambient Temp. 0~50 ℃
    Relative Humidity 85%
    RF Distance N/A
    Protection Class IP20
    Thermostat Dimension 353x158x60mm
    Materils  ABS+PC (Rohs certificated)
    Optional Function WIFI; Opentherm
    Certificate CE(RED/EMC/LVD), Rohs
    OEM  1. Customized logo and package
    2. Customzied software ( change to customer’s user interface and control logic
    3. Customized hardware ( change the PCB and schematic based on the request)

    Q1: Are you a manufacturer or trading company?
    A:We are professional manufacturer of electric heating boiler, electric heating faucet and electric water heater with over 10 years experiences.

    Q2: What is your sample policy?
    A:Our sample fee is refundable, the sample cost can be returned to you with your bulk order.

    Q3: What is the production lead time?
    A:The delivery time will be according to the purchase quantity 25-35 working days.

    Q4: Will you provide technical promotion support?
    A:Of course, we can provide corresponding pictures and videos to you

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