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Frost protection function
The frost protection function requires an
outside temperature sensor to be con-
nected. The frost protection function
becomes active at outside temperatures
of < 5 °C. The burner starts and the boiler
water temperature is held at 20 °C.
Control unit
Functions and operating conditions in…
(cont.)
5675 991 GB
Summary of Contents for Vitodens 050-W BP JD
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