A.O. Smith BFC - 28 - Manual (Page 60)

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60 Instruction Manual BFC
8
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8.6 Extra period
8.6.1 Introduction
Use an extra period when you either want to have the appliance switch on and
off for a certain period, either without modifying the active week program, or
without taking the appliance out of OFF mode (frost protection active).
If the appliance is running under an ‘extra period’, then this is indicated in the
display with the text
EXTRA . See Figure 8.28 .
If the water temperature becomes too low during the extra period (see
’8.6.2 Programming an extra period’ ), the appliance will run through the heating
cycle (see ’7.4 The appliance’s heating cycle’ ), then fall back into the extra
period.
The same settings can be made for an extra period as for a week program
period. See paragraph
’8.5.3 Changing the appliance’s standard week
program’ .
8.6.2 Programming an extra period
Bring up the menu for entering an extra period via:
1. B:
EXTRA PERIOD
Confirm with E.
The display show the settings for the extra period. See
Figure 8.30 .
Setting the switch-on time
2. Use H and L to select the day desired. In the example this is SU .
Confirm with E.
The cursor moves to the hour digits, which will blink. See
Figure 8.30 .
3. Use H and L to set the switch-on hour to the desired value. In the example
this is 08 .
Confirm with E.
The cursor moves to the minute digits, which will blink. See Figure 8.31 .
n Remark
Because the switch-off time can never be earlier than the switch-on time, the
switch-off time setting is automatically adjusted with the switch-on time.
4. Use H and L to select the minutes. In the example this is 15 .
Confirm with E.
The cursor moves to the hour digits of the switch-off period. See Figure 8.32 .
Setting switch-off time
5. Use H and L to select the hour. In the example this is
12 .
Confirm with E.
The cursor moves to the minute digits, which will blink. See Figure 8.33 .
6. Use H and L to select the minutes. In the example this is 45 .
Confirm with E.
EXTRA
10:00 Monday 76ÉC
MO 11:15 Tset 75ÉC
PERIOD ACTIVATED
Figure 8.28 Extra period active
MENU
ON
^ WEEK PROGRAM
ȻEXTRA PERIOD
Figure 8.29 Extra period
ON SU»08:00
OFF SU 08:00
Tset 65ÉC
PUMP ON START
Figure 8.30 Setting switch-on
hour for extra period
ON SU 08»15
OFF SU 08:15
Tset 65ÉC
PUMP ON START
Figure 8.31 Setting the switch-
on minutes for extra period
ON SU 08:15
OFF SU»08:15
Tset 65ÉC
PUMP ON START
Figure 8.32 Setting switch-off
hour for extra period
ON SU 08:15
OFF SU 12»15
Tset 65ÉC
PUMP ON START
Figure 8.33 Setting the switch-
off minutes for extra period