Application manual
Air quality multisensor and regulator EK-ES2-TP
Release 1.0 - Updated: 14/02/2020
Application Manual
© EKINEX S.p.A. - All rights reserved
Page 45
Object name
Conditions
Dim.
Flags
DPT
Comm.
Obj.
No.
Heating and cooling out
command
Command
communication object =
unique,
Control type = continuous
1 byte
CR-T-
[5.001] percentage (0..100%)
56
Auxiliary heating out command
Command
communication object =
separated,
Auxiliary heating =
enabled
1 bit
CR-T-
[1.001] switch
58
Auxiliary heating and cooling
output command
Command
communication object =
unique,
Auxiliary heating =
enabled
1 bit
CR-T-
[1.001] switch
58
Auxiliary heating disable
Auxiliary heating =
enabled,
Disabled from bus = yes
1 bit
C-W--
[1.003] enable
60
Note on floor temperature limitation function
The floor heating system (warm water version) provides plastic pipes embedded in the concrete layer or placed
directly under the final coating of the floor (light or "dry" system) filled by heated water. The water transfers the
heat to the final coating that heats the room by radiation. The standard EN 1264 Floor heating (Part 3: Systems
and components - Dimensioning) prescribes a maximum allowed temperature (T
Smax
) for the surface of the
floor that is physiologically correct defined as:
T
Smax
≤ 29°C for zones of normal occupancy;
T
Smax
≤ 35°C for peripheral zones of the rooms.
National standards may also limit these temperatures at lower values. Peripheral zones are strips generally
located along the external walls with a maximum width of 1 m.
The floor heating system (electrically powered version) involves the laying under the floor coating of an electric
cable powered by the mains voltage (230 V) or low voltage (for example 12 or 45 V), possibly already prepared
in the form of rolls with constant distance between sections of cable. The powered cable releases heat to the
overlying coating that heats the room by radiation. The regulation is based on measurement of the temperature
of the air mass, but generally requires the monitoring and limiting of the surface temperature by using a NTC-
type sensor which is in contact with the floor surface.
The surface temperature limitation may be realized for several purposes:
physiological compatibility (correct temperature at the height of the legs);
when the system is used as auxiliary stage for heating. In this case, the heat losses to the exterior of
the building are handled by the main heating stage, while the auxiliary stage only works to keep the
floor temperature at a comfortable level (for example in bathrooms of residential buildings, sports
centers , spas and thermal baths, etc.);
protection against damages of the final coating due to an accidental overheating. Note that the warm
water radiant panels are usually already equipped with a safety thermostat (with intervention on the
hydraulic mixing group), while in the case of electrical power this device is not usable and it is common
practice to realize a temperature limitation with a surface temperature sensor connected to the device.