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4 - INSTALLATION
Figura 4-6 - QMX3 Room sensor
COSMOGAS
4.5 - QMX3 Room sensor
The QMX3 room sensor, if combined with a mixed circuit, is
able to regulate the temperature of the heating / cooling zone in
a modulating way with respect to the temperature of the room
where the sensor is located. Through this sensor it is possible:
- set the zone to "Automatic" (time program) or select the
desired manual heating range (Antifreeze, Precomfort,
Comfort);
- see the current and desired room temperature;
- see the outdoor temperature (if the outdoor sensor is
installed).
Install the room sensor in a place in the house where the
temperature is the most characteristic of the home and,
however, in an area that is not subjected to repeated
temperature changes, away from windows or doors which
open directly to the outside.
The room sensor must be connected to the Tutorbit to
terminals CE + and CE- (KNX bus) and it is essential to respect
the polarity of the electrical connections.
On the same terminals CE + and CE- it is possible to install
as many room sensors as there are mixed circuits.
To install room sensor see Section 4.19.
4.6 - Operation
The TutorBit is a controller able to manage a cascade of
up to 4 heat modules and an heat pump, that can be used
to produce heating, heating and domestic hot water or only
domestic hot water.
TutorBit can also perform the following functions:
- Control up to 5 heating zones, with or without 3 way valve
(the 3 way valve must be 3-point), depending on the room
temperature, the outside temperature or both;
- Control of the tank load for the preparation of DHW, via
temperature sensor or contact by thermostat;
- Control of a solar zone for loading the domestic hot water
tank;
- Checking the anti-legionella of the DHW storage tank;
- Control of a shuffle pump for the DHW;
- DHW recirculation control;
- Anti-legionella request for the DHW return zone;
- Contact of DHW able/enable.
When a system is used to produce heating and domestic hot
water, there are two different configurations that can be chosen
by the installer: "All power" configuration and "Distributed
power" configuration
"All power" configuration
Figure 4-9 shows the application diagram of a system where all
the heat modules are controlled in parallel to produce heating
or all to produce domestic hot water. This system, where all
the power is intended for heating or DHW, is subsequently
called "All power" system.
13
TUTORBIT
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