ECCM32

Calculation unit for heat metering systems - 2 pipes

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ECCM32 FOR MORE INFO

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• DESCRIPTION
• TECHNICAL SPECIFICATION
• HOMOLOGATION AND INSTALLATION
• TECHNICAL LITERATURE

• DESCRIPTION
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  Electronic unit used for heat sub metering in heating and cooling systems as well as the volumes of cold and hot sanitary water meters.

  General features

  • The calculator features separate sections able to simultaneously record the following:
    • thermal energy in a heating and cooling circuit;
    • sanitary cold water volume;
    • sanitary hot water volume.
  • The unit has been designed to facilitate the installation and reduce the time needed for the commissioning operations.
    The ECCM32 unit is equipped with a wired “M-Bus” interface and a wired “Local-bus” interface that allow the user to read, by means of compatible equipment, the consumption from inside one’s own apartment.
  • Ambient operating temperature: +5 ÷ +55 °C
  • Storage temperature: -20 ÷ +55 °C
  • Dimensions: 141 x 77,5 x 47 mm
  • Degree of protection: IP52
  • Environmental class: A (E1, M1)
  • Maximum value of thermal power: 33000 kW with a pulse rate < 100 l/pulse; 330000 kW with a pulse rate ≥ 100 l/pulse
  • Temperature measurement range: 2 ÷ 150°C (Θmin=2°C Θmax=150°C)
  • Temperature difference: 3 ÷ 148°C (ΔΘmin=3°C ΔΘmax=148°C)
  • Heating/cooling switching: According to the sign of temperature difference between sensors (ΔΘ); in any case, no energy
    recording takes place in case of –3°C < ΔΘ < +3°C
  • Display unit features: Liquid crystal display (LCD) with 8 digits, 19 icons and 2 auxiliary digits
  • Energy measurement unit on the LCD: MWh (standard), configurable kWh, MJ and GJ
  • Type of sensors: Pt500 sensors pairs with 2-wire lead (Platinum precision resistor, IEC 60751 compliant
  • Type of sensor cables: Unshielded
  • RMS Sensor current value: < 72 µA (measurements made every 30 seconds)
  • Pulse inputs: One input for the heating/cooling flow meter; two inputs for the sanitary water flow meters
  • Pulse inputs class: IB (in accordance with the EN 1434-2 Standard)
  • Pulse inputs circuit type: Pull-up (1 MΩ) with reference to ground (GND terminal); voltage: +3.6 V
  • Pulse input compatibility: Flow Meters with class OA (reed output) and class OC (open-collector) pulse outputs
  • Max. frequency / Pulse min. duration: 5Hz – 100ms
  • Flow Meter installation position: Return (standard), configurable on the forward
  • Pulse rate: 1 – 2,5 – 10 – 25 – 100 – 250 – 1000 – 2500 litres/pulse
  • Heat carrier fluid: Water (standard), configurable for water and glycol solution
  • M-Bus communication interface: Compliant to EN 1434-3, with galvanic separation
  • M-Bus baud rate: 2400 baud (standard), also configurable to 300 or 9600 baud
  • Type of cable for M-Bus connection: Telephone cable J-Y(ST) Y2 x 2 x 0,8mm²
  • Local Bus interface: Compliant to EN 13757-6, 2400 baud, proprietary unidirectional protocol
  • Type of cable for Local Bus connection: Two wire cable (2 x 0.6mm² , max. length: 50m)
  • Billing recording: 12 fixed monthly recordings, two periods with programmable dates (DD/MM)
  • Anomaly/alarm recording: Circular log, four events (type of event and date)
  • Other recordings: Heat carrier fluid max. flow rate and max. power
  • Type of connections: Removable, 14-pole terminal block (5mm pitch)

  Electric features

  • Power supply: Battery-operated
  • Battery rated voltage: 3,6V
  • Type of battery: Pre-wrapped package (2xAA – capacity: 4.8 Ah – spare part code: 1592269)
  • Battery life: 10 years operation + 1 year stock
• ADVANTAGES
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  Electronic unit used for heat sub metering in heating and cooling systems as well as the volumes of cold and hot sanitary water meters.

  Advantages
• TECHNICAL SPECIFICATION

  CODE	POWER SUPPLY	TEMPERATURE MEASUREMENT RANGE	PROBE TYPE	INPUTS	PROTECTION DEGREE
  ECCM32	batteries 2xAA – 5,4Ah	2 ÷ 150°C (Θmin=2°C Θmax=150°C)	thermo resistive Pt500	1 for heating or cooling 2 for sanitary water	IP52

• HOMOLOGATION AND INSTALLATION
  Homologation

  • 2004/22/CE MID (B+D); CH-MI004-13017.

  Installation and use

  • Wall-mounted

  • The ECCM32 calculator is equipped with one section (made up of one pulse input and two inputs for the Pt500 sensors) to
    measure the thermal energy of a heating circuit and/or a cooling circuit, as well as two pulse inputs used to acquire the
    consumption data from the sanitary hot and cold water meters.
  • Therefore, the unit can be used with a wide range of system applications, e.g. in household and tertiary environments featuring
    systems equipped with two pipes or central heating plant or solar power installations, considering that the unit can be configured to record the energy in circuits making use of heat carrier fluids based on water and glycol.
• TECHNICAL LITERATURE
  • ECCM32 EN instructions
  • Conformity EU declaration
  • MID certificate
• FAQS