Eden RCE10E Installation And Use Manual - R C E 1 0 E
R C E 1 0 E
I N S T A L L A T I O N A N D
U S E G U I D E
2.3.2 Connections
Lay the necessary cables for connection between the control unit and
the fan coil, including those for any sensors and auxiliary inputs, as
specified below.
Fix the installation base to the wall or on top of a 503 box using 2 screws.
Carry out the connections to the terminal block.
Carefully check the connections.
Place the control unit on top of the base, gently pushing it until the 2
parts lock together.
Connecting cables between room unit and fan coil and between
room unit and centralised controls.
The connecting cables must have the following characteristics:
between room unit and fan coil;
section: 1.5mm2
insulation: 250 Vac
maximum length: 20 m
between room unit and centralised controls;
section : 1.5 mm2
insulation: 250 Vac
maximum length: 20 m
It is advisable to lay the cables to the actuators and the power supply
in conduits other than those for the sensor and centralised control cables.
Fig. 6
Fig. 5
2.4.0 DESCRIPTION OF INPUTS AND OUTPUTS
2.4.1 Analog inputs (External measurement sensors)
Temperature sensors with the characteristics described under Technical
Data may be connected to the analog inputs M13 and M14.
Sensors with other characteristics may not be connected.
The air and water sensors are optional. The air sensor is used for
measuring the room temperature for example on the air intake of the
fan coil.
The water sensor is used to carry out the change of season in the
automatic mode according to the temperature of water entering the fan
coil or as minimum temperature acknowledgement for starting the fan
coil both in the heating and the cooling modes.
2.4.2 Installing and enabling the sensors
Air sensor (M13-M15)
The appliance is fitted with an internal sensor for measuring the room
temperature. If an external sensor is necessary, proceed as described
below. The sensor is installed on the air intake of the fan coil.
If connected, the instrument acknowledges this sensor as active, ignoring
the internal sensor.
If it is not connected, the instrument acknowledges the internal sensor
as active.
Water sensor (M14-M15)
This measures the water outlet temperature for the automatic
Cooling/Heating switching (only on 2-pipe systems).
Install the sensor upstream of the regulating valve, as shown in figure
7. Note: the valve must be 3 way.
If the regulating valve is not installed, the water sensor may be used
for the automatic Summer/Winter switching and Acknowledgement
for Fan Start (both in the summer and winter modes).
Put the sensor between the exchanger fins as shown in figure 8.
A thermostat (TC) may be used instead of the water sensor for the
sole function of fan acknowledgement:
open contact= summer fan acknowledgement;
closed contact= winter fan acknowledgement.
In a double coiled fan coil (4-pipe system), the water sensor may only
be used as acknowledgement for fan start in the heating mode. Put the
sensor between the heat exchanger fins. To change the assigned function
of the water sensor, the parameters 2, 9, 10 must be set as indicated
in table 1.
Parameter 2 to define the type of system.
Parameter 9 to define whether or not the switching must depend on the
water sensor.
Parameter 10 to define the function of the water sensor.
Some examples for 2-pipe systems (See table 1).
Fig. 8
Water sensor
Fan acknowledgement
Fan coil
Fig. 7
Water sensor
Summer/Winter
Fan coil with
regulating valve
3-way regulating
valve
5
TO DISCONNECT
83
TO CONNECT