Daikin EPRA10EAV3 Installer's Reference Manual page 75

EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF
Daikin Altherma 3 H MT ECH₂O
4P663478-1B – 2022.07
4 If switch box is opened: Disconnect the ground connection from the top cover
of the switch box.
5 If necessary, remove the top cover. This is necessary in the following cases:
▪ Connecting water piping
▪ Connecting BIV or DB-kit
▪ Connecting backup heater
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Unit installation
Installer reference guide
75