TAC AB, 1998-10-23 0-004-7614-0 (GB), 7:19 (24)
TAC 2413 Handbook Functional description
7.5 Timer programs
TAC 2413 contains two weekly programs (1/1 and 1/2 speed) which
control how the AHU starts and stops. Apart from the weekly pro-
grams, there is a yearly program containing six holiday periods. 1/1
speed is disabled if the outdoor temperature is less than the limit set in
P90.
The times of 1/2 speed apply to one speed operation as well.
The weekly program for 1/2 speed operation (one speed operation)
starts and stops the AHU. During two speed operation, the fans will
always start at half speed. In order to acquire 1/1 speed operation, the
weekly programs for both 1/2 speed and 1/1 speed have to be active.
The yearly program may be used to stop the AHU during longer
periods, such as during holidays and school breaks. There are six
holiday periods that may be programmed up to a year in advance.
Each holiday period is limited by a start and end date. The holi-
day period will run until the set end date is over.
A holiday period is removed by setting the day of the start or end
date to zero, such as the start or end date = 01.00.
P No. Parameter Min. Max. Factory set. Change Comment
P 12 Weekly program 1/2 speed 07–17 Mon-Fri, one speed op.
P 13 Weekly program 1/1 speed –
P 15 Yearly program 1 6 Choice of holiday period
1–6
P 16 Start holiday 01 00 12 31 Start date of holiday period
chosen above
P17 End holiday 01 00 12 31 End date of holiday period
chosen above
7.6 Alarms
The controller has a built-in alarm function.
When an alarm is tripped, the
!
will flash in the display window
together with the symbol which the alarm is referring to. There
are two different types of alarms, A alarms or B alarms. On some
alarms, there is a choice of acquiring an A or B alarm when the
alarm in question is tripped.
A alarms have to be reset manually, and they will always acivate the
sum alarm. B alarms are reset automatically, and there is a choice of
activating the sum alarm or not. When the reason for the alarm is
gone, the reset is done by pressing the enter button, är borta sker åter-
ställning genom att trycka på Enter-knappen, upon which the AHU is
restarted.
During manual control of the AHU, the sum alarm can be set by using
P 88.
7.6.1 Fan alarms
1
1
1
2
!
To Next Page
Loading...
