There are accommodation facilities in which fl oor or ceiling radiant systems are used for
guest rooms, common areas or other rooms. Depending on the diff erent situations, the
operation of the radiant systems can be combined with that of fan-coil units, primary
air or other systems that take over the functions of air renewal and dehumidifi cation or
integration of thermal loads.
Control with Ekinex
Considering a radiant fl oor system in the guest rooms, the room temperature is controlled
by the EK-EQ2-TP room thermostat (C), able of measuring temperature and relative
humidity, in combination with the EK-HE1-TP actuator (D) and the EK-HC1-TP fan-coil
actuator (A).
The room thermostat (C) is able to calculate and send the dew temperature to the bus;
in case the thermo-hygrometric conditions of the room are close to those critical for the
formation of condensation on the cooled radiant surfaces, it is possible to implement one
of the protection strategies provided by the Ekinex thermoregulation platform. The room
thermostat allows the combined or separate operation of the two systems, radiant panels
(5) and fan-coil unit (1), possibly diff erentiated according to the season. It is possible, for
example, to create a two-stage heating / cooling system in a simple way: the main stage
is made up of the radiant panel system, the auxiliary stage by the fan-coil unit The fan-coil,
thanks to its very low inertia, contributes in the initial phase to quickly heat or cool the
room and then stop its action when the demand for heat or cold can be satisfactorily dealt
with by the main stage alone.
Heating and cooling with radiant systems
T
3
1
2
T
3
1
2
A
A
B
B
C
C
D
4
4
6
5
5
7
Guest room 1
Technical space 1-2
Guest room 2
Boiler
room
Application example (guest rooms, fl oor panels)
Ekinex devices
A) Actuator-controller for fan-coil unit EK-HC1-TP
B) NTC temperature sensor (contact) EK-STC-10K-3435
C) Room thermostat EK-EQ2-TP
D) Actuator-controller for electrothermal drivesi EK-HE1-TP
Other components
1) Fan-coil unit
2) Valve with ON / OFF servomotor
3) Window contact
4) Condensation sensor
5) Floor heating circuit
6) Distribution manifold for low-temperature circuits
7) ON / OFF electrothermal actuators
In many projects, radiant systems are chosen for their excellent integration with the
architectural part and the high comfort off ered: this is the case, for example, of the
versions with ceiling panels (6), used for meeting rooms, conference centres, staff
offi ces or common areas. As in the case of the fl oor panels, the system is invisible and
uses the entire ceiling surface as a large terminal for heat exchange. The air required
for renewal and dehumidifi cation can be sent into the room by means of special
diff users or distributed at low speed through the entire micro-perforated surface of
the ceiling panels.
Control with Ekinex
When a 4-pipe hydronic system is used for heating and cooling rooms, in order to
meet the complex requirements of the intermediate seasons and the high variability
of thermal loads, the room air temperature can be regulated by means of the EK-ES2-
TP multisensor (D) in combination with the EK-HE1-TP actuator (B) which controls
the servomotors of the zone valves installed on the distribution manifolds. In addition
to the function of room temperature controller, the multisensor (D) can measure and
send to the bus the values of relative humidity, air quality (such as CO2 and/or TVOC
concentration) and dew temperature to the dehumidifi cation and air renewal systems
to ensure ideal comfort conditions in every situation. The operation of the system can
be temporarily attenuated or stopped by detecting the status of door or window opening
contacts (7) through the EK-CD2-TP interface (C); the same interface can also detect
the signal of an condensation sensor (5). To reduce the consumption of heating and
cooling energy, the operating mode can be switched automatically depending on the
presence of people in the room thanks to the EK-DF2-TP presence sensor (E).
Application example (conference room, ceiling panels)
3
1
B
4
3
2
4
7
C
6
5
D
A
E
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Boiler room
Ekinex devices
A) Ekinex pushbutton (71 series)
B) Actuator-controller for electrothermal drives EK-HE1-TP
C) Universal interface EK-CD2-TP
D) Multisensor (EK-ET2-TP or EK-ES2-TP)
E) Presence sensor EK-DF2-TP
Other components
1) Distribution manifold (flow) for low-temperature circuits
2) Distribution manifold (return) for low-temperature circuits
3) Valve with ON / OFF servomotor (warm fluid)
4) Valve with ON / OFF servomotor (cold fluid)
5) Condensation sensor
6) Ceiling radiant panels (series)
7) Window contact
HOTEL SOLUTIONS
HOTEL SOLUTIONS
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