A.O. Smith BFC-120, Installation, User And Service Manual

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The lines showing switch-on/off times are replaced by the text DELETE BLOCK?. See
the figure.
Confirm with [ENTER].
(or use [RESET] to cancel).
The switching period has been deleted. You will return now to the week program
menu. The cursor points to the first programmed period.
Scroll with [ ] to START OPERATION.
Confirm with [ENTER].
The week program is active.
4.3.9 Extra period
Use an extra period when you either want to have the water heater switch on and off for a
certain period, either without modifying the active week program, or without taking the
water heater out of OFF mode (frost
protection active).
If the water heater is running under an "extra period", then this is indicated in the display
with the text EXTRA.
During the extra period, if the water temperature becomes too low, the water heater will
run through the operating cycle (see section 4.1.1), then return to the extra period.
The same settings can be made for an extra period as for a week program (see section
4.3.6).
4.3.9.1 Programming an extra period
Call up the menu for entering an extra period via:
[
]:: EXTRA PERIOD
Confirm with [ENTER].
The display show the settings for the extra period.
5.
6.
1.
2.
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