ef cooling Ernst H. Furrer AG Operating manual
6-22 Chapter page Issue: 07 / 2015 Cooling unit EVO 45, 0390.013
If there is danger of freezing, the main power (main switch and main power supply)
should never be switched off!
6.4.3 Operating state "Total Off"
The cooling unit is completely switched off
Main current: OFF (main switch)
External enable: OFF
In this operating state the cooling unit reacts neither to excess temperature nor insufficient
temperature.
Frost protection is not guaranteed in this operating state. Ambient temperature of at
least +5 °C. The tank and all water circuits may need to be completely emptied (see
Chap. 4.2.1 Emptying (frost protection))!
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