TAC 2112, Manual Functional Description
TAC AB, 1999-08-01 0-004-7459-3 (GB), 7:19(
22
)
7.5 Time schedules
The TAC 2112 includes two weekly programs and a yearly program
(holiday program).
Weekly program 1 is used to reduce the room temperature during
night operation.
Weekly program 2 is used to control external units (via output K4).
The yearly program has six holiday periods. During a holiday period,
the room temperature is reduced to the setpoint for night operation.
The transition between weekly programs and the yearly program takes
place at midnight, without optimisation.
The holiday periods of the yearly program override weekly programs
1 and 2.
Holiday periods are deleted by setting the start date and/or end date to
month.00.
Parameters
P No. Parameter Min. Max. Step Default Comments
P 14 Weekly program for heating - - 0,5 h 06–22 ! = daytime operation
P 61 Weekly program, output K4 - - 0,5 h 00–00 ! = K4 on
P 63 Holiday period 1 6 1 1
P 64 Start date, holiday period 01.00 12.31 00.01 01.00 Holiday period acc. to P 63
P 65 End date, holiday period 01.00 12.31 00.01 01.00 Holiday period acc. to P 63
7.6 Alarm
The controller has an integral alarm function with the three alarm
conditions described below.
When an alarm is triggered, the
!
symbol flashes in the display
window and output K3 is connected. The cause of the alarm can be
read off from the display window.
The alarm is reset automatically when the alarm condition has ceased
to exist.
Deviation, supply temperature
The alarm is triggered when the following conditions exist:
•
The measurement value of the supply temperature deviates by
more than 10
°
C from the setpoint for more than 30 minutes
•
Daytime operation applies
•
The circulation pump has not stopped
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