Change-Over; Window Contact; In-Use - SystemAir TControl POD glass EC Manuel D'installation Et De Maintenance

18 TControl POD glass EC

11.2.1. CHANGE-OVER

The Change-Over function can be performed by the installer by using:
a sensor
²
that must be connected to universal input 1
a contactor
²
connected to either universal input 1 or input 2
The Change-Over sensor is configured via the configuration
screen or via Modbus (Address 18).
If a change-over sensor is selected, cooling mode is permitted
from a water temperature < 19°C and heating mode is
permitted from a water temperature > 28°C.
The Change-Over contact is activated via the configuration of a digital input (address 18 or 19) or via
Modbus (address 260).
When the Change-Over contact is active, heating or cooling modes are forced on a 2-pipe unit.
If the input is configured as a contact, heating mode is allowed with an open contact and cooling mode with
a closed contact.
Caution
When the change-over function is used, the heating (terminal 5) and cooling (terminal 4) outputs
are energized simultaneously.

11.2.2. WINDOW CONTACT

The window contact can be connected at the installer's choice to:
universal input 1
²
input 2
²
The window contact function is activated via the configuration of a digital input (Address 18 or 19) or via
Modbus (address 259).
When the window contact is active, (open window
= energy reduction activated), the heating and
cooling setpoints are automatically those of the
building protections. The ventilation status switches
to automatic mode and, after exiting the energy
reduction mode, returns to its previous status.
When the function is active, its symbol is
automatically visible in the screen's footer if it has
been selected. The control operates at the setpoints
of the building protection systems.

11.2.3. IN-USE

The in-use contact can be connected at the installer's choice to:
universal input 1
²
input 2
²
The in-use function can be activated via the configuration of a digital input (address 18 or 19) or via Modbus
(address 257).
If the button and Modbus are used at the same time, the last modified value determines the output value.
The digital input has the highest priority.
When the in-use function is active, its symbol is automatically visible if it has been selected in the footer.
SELECT CONFIGURATION
4P
Change-over
CO
HO
DEAD ZONE
rY [%]
Heat
100
0
7 14 16 20 22
Cold
rX [°C]
26 28 35 42