A.O. Smith BFC Cyclone, Installation, User And Service Manual

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4.2.2 Isolate from the mains
The water heater may only be isolated from mains power in the correct way. The correct
procedure is as follows:
Activate the MENU with [ ] .
Position the cursor in front of OFF.
Confirm OFF with
[ENTER] .
Caution
Failure to wait until the fan stops can cause damage to the water heater.
Wait until the fan has stopped. The icon is then dimmed.
Switch the water heater
OFF (position 0 ) using the control switch on the operator
interface.
Isolate the water heater from the power supply by setting the isolator between the
water heater and the mains power supply to position
0 .
Note
Setting the main switch between the water heater and the electricity mains to 0 will
switch off the power supply to the potentiostat; there is then no longer any anode
protection.
4.2.3 Turn off for a long period
When the water heater needs to be turned off for more than 2 months, contact your
service and maintenance engineer to decommission the water heater.
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28 User part