Connecting The "Energy Metering" Option - DeDietrich AWHP-2 MIT-IN-2 iSystem Installation And Service Manual

4. Installation AWHP-2 MIT-IN-2 iSystem
4.11.17.

Connecting the "energy metering" option

n Operating principle
The "energy metering" option provides data on electrical energy
consumption and thermal energy production by the outside module,
the inside module and the back-ups, according to the chosen
configuration (heating, DHW, etc.). The restored values are
memorised for two years and can be viewed on the control panel
display.
n Specifications of the energy meters
Electrical energy meter:
4 Opto-insulated pulse output.
4 Minimum admissible voltage: 27 V
4 Minimum admissible intensity: 20 mA
4 Minimum pulse time: 25 ms
4 Maximum frequency: 20 Hz
4 Pulse weight: Between 1 and 1000 Wh.
Thermal energy meter (Optional):
4 Opto-insulated pulse output.
4 Minimum admissible voltage: 27 V
4 Minimum admissible intensity: 3 mA
4 Minimum pulse time: 5 ms
4 Maximum frequency: 100 Hz
4 Pulse weight: Between 10 and 1000 Wh.
If the thermal energy meter is connected, the pulses are added at the
thermal energy value calculated by the sensors and the flowmeter.
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