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WFN2..

Electronic heat and cooling energy meter, wall mounted

The heat / cooling energy meters are electronic dry-runners. They acquire the flow without generating a magnetic field and use highly accurate temperature sensors. They are used in residential and commercial buildings for acquiring heat or cooling energy consumption. Day by day they transmit the current measured values and consumption on the set day to the associated data collectors. The heat / cooling energy meters are available as single-jet or measuring cell models in different sizes, enabling them to be installed on all types of standard plant (calculator removable, cable length 1,5 m). The tenant can see his individual consumption on a large, easy-to-read display. The built-in lithium battery powers the device for a period of time exceeding the calibration period. Data transmission via M-bus, pulse, or the AMR remote meter readout system.
The heat meter has 3 display levels which show the following values and variables:

• Cumulated heat consumption since the meter was first installed
• Cumulated heat consumption since the last set day
• Segment test
• Current heat output
• Current flow rate
• Current flow temperature
• Current return temperature
• Current temperature differential
• Heat meter's number of operating hours since it was first installed
• Set day and set month
• Stored heat consumption of previous year
• Stored heat consumption of the last 13 months
• Verification code
• Indication of errors
• Cumulated cooling energy comsumption since the meter was first installed

The units displayed are °C or K, kWh (or GJ on request), m?/h, kW, and hours.
The standard display shows the cumulated heat consumption.