TAC 2112, Руководство пользователя, Страница: 49 / 70

TAC 2112, Manual Functional Description
TAC AB, 1999-08-01 0-004-7459-3 (GB), 7:17(
22
)
7.3.13 Extended daytime operation
Daytime operation can be extended by means of an integral timer.
This timer is started from outside, e.g. from an external pressure
changeover switch which momentarily connects input X1 to M
(measurement neutral). The time for extended daytime operation can
be set between 1 and 6 hours.
An external timer can also be used. The integral timer is set to 0
hours, daytime operation applying as long as the input X1 is
connected to M.
In the event of extended daytime operation, the symbols on the left
are displayed in the display window (the sun flashes).
Extended daytime operation is blocked when the controller is in the
”heating off” and “manual control”, or ”fixed night setback”,
operating modes.
Parameters
P No. Parameter Min. Max. Step Default Comments
P 62 Timer, extended daytime op. 0 h 6 h 1 h 0 h h=hours
7.3.14 Forced night setback
Night setback can be forced by connecting input X2 to M.
In the event of forced night setback, the symbols on the left are
displayed in the display window (the moon flashes).
Forced night setback is blocked when the controller is in the “heating
off”, ”manual control”, “fixed daytime operation” and “extended day
operation”, operating modes, as well as when the controller is running
a holiday program.