Seltron ZCE6 Basic, Руководство пользователя

Страница: 22 / 40

22 English
The digital input “external timer” enables remote switch-on of operation based on
desired temperature.
Parameter C1.4 is used to select between four operation modes:
C1.4=0 - input not used,
C1.4 = 1 - desired daytime temperature,
C1.4=2 - desired nighttime temperature,
C1.4=3 - switch-off temperature,
C1.4=4 - desired room temperature set with parameter C1.5.
The selected operation mode is activated when a short circuit on the digital input
“external timer” is detected, and is valid for all zones.
Digital input “external timer”
The mixing valve is controlled by closing and opening impulses (P-constant) in
time periods (I-constant). When in heating mode, the measured temperature of
supply line is below the desired temperature, the mixing valve opens, when the
measured temperature is above the desired temperature, the mixing valve closes.
In case of quick temperature changes of supply line, the mixing valve can (due to
the influence of D-constant) also close when the measured temperature is below
the desired temperature and vice versa.
In the cooling mode, the opening and closing direction of the mixing valve is re-
versed!
The mixing valve constants are set with parameters C4.14, C4.15 and C4.16.
Mixing valve (ZCE6 Advance)