RCE - Emmeti Climatic Regulator
The RCE - Emmeti Climatic Regulator RCE is an intelligent and automatic
control system of all the heating and cooling functions of small and medium sized systems, both underfloor and/or radiant ceiling systems and high
temperature systems (radiators, fan coils), such as houses, apartments, offices, shops, etc., managing all the functions required for the temperature
control of the mixing system.
The controller is also able to manage centralized systems, in two different
ways:
•with a single mixing valve in the heat generating unit;
•with a controller and a mixing valve (mixing unit) in each apartment.
Range
RCE - Emmeti Climatic Regulator kit for mixing systems
Functions
•Heating and/or cooling modes (possibility to choose between "heating
only", "cooling only", "heating and cooling");
•Possibility to choose the type of system: high temperature (radiators/fan
coils) or low temperature (radiant panels).
•Different management of the Flow temperature depending on the selected mode:
- "Fixed-point" mode: fixed Flow temperature both in heating and cooling mode.
- "Modulating" mode: fixed Flow temperature in cooling mode and
variable in heating mode, depending on the return temperature of the
system.
- "Temperature control" mode: Flow temperature calculated in function
of the external temperature.
•Management of a mixing valve, driven by a floating servomotor (3-point)
or a modulating servomotor (0÷10 Vdc).
•Condensate safety function in cooling mode: in independent systems
operating also in cooling mode, it is necessary to install a condensate
probe for each supply manifold of the system; if the conditions are such
as to cause the probe to intervene, the controller will increase the Flow
temperature. If the alarm continues, the chillers and the circulator will
be turned off and the mixing valve will be closed.
•Safety thermostat function: if a safety thermostat is installed, when the
temperature set on the thermostat has been exceeded, the controller
turns the circulator and the heat generator off and closes the mixing
valve.
•Management of a centralized system with one mixing valve placed in
the heat generating unit (foot of column): the controller manages a single mixing valve and each utility will feature one or more thermostats,
depending on the number of temperature zones in which the utility itself
is divided.
In the case of cooling, each utility will also feature a condensate probe
for each supply manifold and a converter for each zone valve; if the
probe detects the formation of condensate on the manifold, the converter closes the zone valve placed upstream of the manifold itself.
The utility thermostats determine whether the controller should be
turned on or off: if there is a request on part of at least one utility, the
controller is started.
•System turned on/off by the thermostats or automation systems.
•On/Off by remote control, via dedicated digital input.
•Change season by remote control, via dedicated digital input.
•High and low Flow temperature limit function always active: the controller stops the circulator and the heat generator, and closes the mixing
valve, preventing water with temperatures over the limit from entering
the system.
•Display and programming menu in multiple languages.
•Console with display that can be remote and placed on the electrical box
thanks to the plate included.
Composition
n° 1 Emmeti Climatic Regulator (RCE)
n° 2 NTC temperature probes (*)
n° 1 Probe-holder kit
n° 1 Wall plate for display
n° 1 Male/female connector kit for display extension (connectors for circuits marked MSTB with 4 poles)
(*) Use one of the two probes as a Flow temperature probe; the other
probe should be used as a return probe (in the case of use in "modulating" mode), or as an external probe (in the case of use in "temperature
control" mode) combined with the cover supplied separately.
If the system also operates in cooling mode, there must be suitable air
treatment in the environment (for example a dehumidifier driven by a
humidistat to control ambient humidity).
163
Ø6
Dimensions of temperature probes
52
1500
Dimensions of probe-holder
Ø 5,9
0
R2
Technical specifications of Temperature Controller
Power supply: 110-230 Vac ±10%, 50/60 Hz
Double insulation
Capacity of contacts: 5A / 230 Vac
Degree of protection: IP20
Attachable to guide DIN (EN 60715) according to DIN 43880
Material of controller: Self-extinguishing PPO
Colour of controller: Grey Ral 7035
Dimensions: 6 modules DIN (95 x 105 x 82 mm)
Material of display: PC/ABS
Colour of display: white
Delegated Regulation (UE) n. 811/2013; attachment IV-3:
– Class of the temperature control device: Class 3; Class III
– Contribution of the temperature control device to the seasonal energy
efficiency of environment heating in %: 1.5%
67,2
Description of inputs and outputs of controller
2 analogue inputs for the NTC temperature probes (supply, return/external);
4 clean digital inputs (approval of heating/cooling/dehumidification,
change season, on/off from remote, alarms).
1 digital output for the activation of the circulator;
1 digital output for the approval to the generator;
1 output for the control of a 3-point floating servomotor; (*)
1 analogue output for the control of a 0-10 V modulating servomotor; (*)
30,3
(*) the RCE controller can manage only 1 servomotor.
Technical specifications of the temperature probes
Type: NTC, 10KΩ at 25°C, IP68;
Length of cable: 3 m;
Length of probe 50 mm;
Diameter of probe 6 mm.
Technical specifications of wall plate for display
Attachment to standard 503 box
Condensate probe
Technical specifications of wall plate for display
Attachment to standard 503 box
Dimensions of RCE controller
105
Technical specifications
Power supply: 15 Vdc ±10%;
RH% of intervention: 90-95%.
82
95
To be used in the case of operation also in cooling mode.
Install a condensate probe for each supply manifold in the system.
10
Dimensions
Dimensions of wall plate
Length 1,5
Lunghezza
1,5mm
15
50
90
Length 1,5
1,5 m
m
Lunghezza
127
164
26
Converter
Transformer 230/24 Vac, 10 VA
Technical specifications
Power supply: 24 Vac ±10%, 50/60 Hz;
Max. absorption: 4.5 W;
Capacity of contact: 5A / 230 Vac;
Degree of protection: IP20;
Attachable to guide DIN (EN 60715) according to DIN 43880;
Material of converter: Self-extinguishing PPO;
Colour of converter: Grey Ral 7035;
Dimensions: 2 modules DIN (95 x 35 x 58 mm).
Technical specifications
230/24 V;
P=10 VA;
F=50/60 Hz.
Dimensions of transformer
64,8
To be used in the case of a centralized system with a single mixing valve
operating also in cooling mode.
Use a converter for each zone valve installed in the apartment, to allow or
prevent the flow of heat transfer fluid within the apartment.
To be used to power a maximum of two converters per condensate probe
or to power 0-10V servomotors at 24 Vac (the number of servomotors that
can be powered depends on the load required).
Dimensions
35
58
Socket for immersion NTC temperature probe
Technical specifications
Threaded connection: G ¼” male;
Length: 83 mm.
Dimensions of socket
1/4” GAS
Ø6,5
60
CH17
Ø7,5
95
35
9 3 11
165
50x50 mm box with cable gland for external probe
Recessed electronic humidistat
Technical specifications
Material: Self-extinguishing ABS;
Colour: white;
Cover includes cable gland;
Dimensions: 80x80x25 mm
Note: for characteristics and models refer to the section dedicated to the
humidistat.
General description diagram
-
A RCE temperature controller.
 Output for the control of one mixing valve only (1-10 Vdc modulating
servomotor or 3-point floating servomotor)
 Digital input for the connection in parallel of the ambient thermostats
and of the humidistats, if present. In alternative, the micro contacts
of the electrothermic heads driven by the corresponding thermostats
and/or humidistats can be connected to the input.
In the case of centralized systems with one mixing valve only in the
heat generating unit, the micro contacts of the zone valves installed in
the different utilities should be connected to this input.
 Digital output for the wiring of the circulator of the low temperature
circuits, located upstream of the mixing valve.
 Analogue input for the connection of the Flow temperature probe.
 Analogue input for the connection of the return temperature probe
(modulating operation) or of the external temperature probe (temperature control mode). If the controller is set to fixed-point mode, no
probes are connected to this input.
 Digital alarm input for the connection in parallel of the safety thermostat and of the condensate probe/s (max 3).
166
 Digital output for the approval to the generator. If the system is centralized, where each utility features a controller and a mixing valve (or
mixing unit), the opening phase of the valve of the utility zone must be
connected to this contact.
In the case of a system with heating only, the contact will be used for
the approval to the boiler, or a heat pump.
In the case of a system with cooling only, the contact will be used for
the approval to the chiller.
In the case of a heating and cooling system with a chiller/heat pump
only, the contact will manage this generator.
In the case of a heating and cooling system, with a boiler intended for
heating and a chiller intended for cooling, a relay controlled by a diverter (e.g. a summer/winter switch) will be connected to the contact,
which will give the approval to the boiler during winter and the chiller
during summer.
Example of installation in a single system, operating in heating and cooling mode, with fixed-point control
Remote display with
wall plate
Summer/Winter switch
RCE controller
TS
Electrical box
with safety
thermostat
E I
Boiler
Niña S
HE Floor Control Unit
Open manifold
Humidistat
Smarty 230 V
Programmable
thermostat
Smarty 230 V
Programmable
thermostat
Dehumidifier
Dumy Floor
Heat pump
Mirai SMI*
Emmeti Clima Floor underfloor circuits
*In this example, the heat pump Mirai SMI operates in cooling mode only.
Note 1: the volume of the open manifold/accumulator is defined in function
of the potentiality of the chiller.
Note 4: by installing also the external temperature probe it is possible to
perform a temperature control.
Note 2: the Summer/Winter switch E/I diverts the approval to the generator during winter and to the boiler during summer.
Note 5: by installing also a temperature probe on the return manifold, it is
possible to perform a modulating control.
Note 3: it is possible, by means of the Summer/Winter switch, to change
the season of all ambient thermostats (if equipped with an input contact
for season change, e.g. Smarty with power supply 230 Vac).
167
Example of installation of a centralized system with a single mixing valve in the heat generating unit,
operating in heating and cooling mode, with temperature control
Converter
Convertitore
Smarty
Smarty
Cronotermostato
Chrono-thermostat
Humidistat
Umidostato
Emmeti
Floor
CircuitiClima
a pavimento
underfloor
circuitsFloor
Emmeti Clima
Topway
Collettore
manifold
Topway
Dehumidifier
Dumy
Floor
Dumy Floor
Deumidificatore
E I
Summer/Winter
Commutatore
switch
Estate/Inverno
Converter
Convertitore
Remote remoto
display
Display
wall a
plate
conwith
placca
muro
External
Sonda
probe
esterna
RCE
Regolatore
RCE
controller
Smarty
Smarty
Chrono-thermostat
Cronotermostato
Humidistat
Umidostato
Emmeti
Floor
CircuitiClima
a pavimento
Emmeti Clima
underfloor
circuitsFloor
Topway
Collettore
manifold
Topway
Electrical
box
Scatola
elettrica
with
con termostato
safety
thermostat
di sicurezza
TS
Dehumidifier
Dumy
Floor
Dumy Floor
Deumidificatore
Boilers
Caldaie
Circolatore
Circulator
Motorised
mixing valve
Valvola miscelatrice
motorizzata
Open manifold
Collettore
aperto
Heat pump
Chiller
Mirai
SMI*
*In this example, the heat pump Mirai SMI operates in cooling mode only.
Note 1: the volume of the open manifold/accumulator is defined in function
of the potentiality of the chiller.
Note 4: by eliminating the external temperature probe it is possible to
perform a fixed-point control.
Note 2: the Summer/Winter switch E/I diverts the approval to the generator during winter and to the boiler during summer.
Note 5: by replacing the external temperature probe with a temperature
probe on the return column, it is possible to perform a modulating control.
Note 3: it is possible, by means of the Summer/Winter switch, to change
the season of all ambient thermostats (if equipped with an input contact
for season change, e.g. Smarty with power supply 230 Vac).
168
Guide for the choice of components
Single system
Two-story home with a single mixing valve and 2 supply manifold, one for
each floor.
The system operates both in heating mode and in cooling mode.
Components required:
•n° 1 RCE temperature controller kit RCE (cod. 28139070).
Note: for "fixed point" and "modulating" modes, all the components
required are included.
For "temperature control" mode, add n° 1 “cover for installation of
external probe” (cod. 28139076) in order to be able to install one of the
probes included outdoors.
•n° 2 “condensate probes” (cod. 28139072) to be installed on each supply
manifold. Both probes must be connected directly to the temperature
controller.
Note: this must be completed by a number of thermostats and humidistats
corresponding to the number of temperature and humidity zones in the
system.
Centralized system
Centralized system for the heating and cooling of a building with 20
apartments, with a single mixing valve in a heat generating unit. In each
apartment there is a zone valve for the flow of the heat transfer fluid to the
supply manifold of the apartment itself.
Components required:
•n° 1 RCE temperature controller kit RCE (cod. 28139070).
Note: for "fixed point" and "modulating" modes, all the components
required are included.
For "temperature control" mode, add n° 1 “cover for installation of
external probe” (cod. 28139076) in order to be able to install one of the
probes included outdoors.
For each apartment
•n° 1 “condensate probe” (cod. 28139072) to be installed on the supply
manifold. (Total 20 pcs.)
•n° 1 converter for condensate probe (cod. 28139074) to be connected to
the condensate probe, which will control the zone valve, closing it in the
event of a condensate alarm. (Total 20 pcs.)
•n° 1 “transformer 230 V - 24 V, 10 VA” (cod. 28139130) to power the
converter for the condensate probe. (Total 20 pcs.)
Note: this must be completed by a number of thermostats and humidistats
corresponding to the number of temperature and humidity zones in the
system.
169