General Description; Briefly - Chorus Gewiss GW 16 974CB Installationshandbuch

The KNX/Easy ICE thermostat - flush mounting with humidity control is used to manage
a humidification/dehumidification system in parallel to a temperature adjustment system
or to act on the temperature adjustment system in order to intervene on the causes of
the formation of humidity. The temperature and humidity are adjusted by commanding
- on a KNX BUS - the KNX actuators that control the heating or cooling elements (including
the fan coils), and the humidification/dehumidification elements.
The thermostat can operate in "stand alone" control mode to autonomously manage the
temperature adjustment system (or parts of it), whereas in combination with a master
device (e.g.: a KNX timed thermostat) it is possible to operate in "slave" control mode
and implement multizone temperature adjustment systems.
The Setpoint values used by the thermostat are the ones configured via ETS, and they
can be modified locally and via the BUS (if these options were enabled during the ETS
configuration).
The thermostat offers:
• 2 types of operation: heating and cooling with independent control algorithms;
• 4 operating modes: OFF (anti-freeze / high temperature protection), Economy, Pre-
comfort and Comfort;
• 4 heating adjustment temperatures (Teconomy, Tpre-comfort, Tcomfort, Tantigelo
(Tanti-freeze);
• 4 cooling adjustment temperatures (Teconomy, Tprecomfort, Tcomfort,
Tprotection_high_temperatures);
• 2 control modes: Slave (if combined with a Master device) or autonomous;
• 2 types of control: HVAC or Setpoint;
• 2 control stages: single stage (with single switchover command) or dual stage (with
dual switchover command, for systems with a high degree of thermal inertia);
• 2way or 4way control algorithms (first stage): 2points (ON/OFF command or 0%/100%),
proportional PI (PWM type control or continuous), fan coil (max. 3speeds);
• control algorithms (second stage): 2 points (ON/OFF command or 0% / 100%);
• 1 input for a potential-free contact (e.g. a window contact, or as a general input with
command function on the BUS);
• 1 input that can be configured for an NTC external temperature probe sensor (e.g.
protection sensor for underfloor heating) or, alternatively, a potential-free contact.
The thermostat is equipped with a white LED backlit display with sensitive rear-projected
areas on a glass plate. The device requires an external AC/DC power supply 12-24Vand
has an integrated sensor for detecting the room temperature (whose value is sent on the
bus with a frequency that can be parameterised or following a temperature change) and
a proximity sensor for activating back-lighting when a user approaches the device. The
thermostat can be configured with ETS or Easy Controller.

GENERAL DESCRIPTION

Briefly

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