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XGG 618

Degree-days metering unit
optional telemanagement

DEGREE-DAYS METERING UNITS Application

Meters winter degree-days in each individual building and permits:
– calculating heating costs.
– keeping under control the overall efficiency of the plants.
– program fuel requirements.
Essential sensors: 1 outside sensor for metering degree-days.

Certifications Catalogue

Code	Description	Data Sheet
XGG 618	Degree-days metering unit optional telemanagement.	H 111

Data sheet

Wiring diagram

Accessories

Certifications

Power supply: 230 V~; Consumption: 5 VA; DIN 105 x 115 modular enclosure; Protection: IP 40.
Digital programming by means of four keys and alphanumeric display.
Automatic switching GMT - BST.
Accuracy: Better than required by regulation EN 1434, Class 2.
Metering:
– standard degree-days: difference between mean daily (24 hour) outside temperature and the reference room temperature of 20°C.
– room degree-days: difference between the mean daily (24hour) outside temperature and a room temperature which can be set. Metering enabled by external control.
– hours of operation: hours devices switched on (presence of power).
Data logger: One daily recording of all counts; max. 366 recordings; display with dates.

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Degree-days metering unit
optional telemanagement