RHOSS ELECTA Series, Instructions For Use Manual, Page: 96 / 344

CONNECTION SPECIFICATIONS “TERMINAL BLOCK”
Connector Connected device Electric features Description
Parameter of
reference
Air Ext. S. Temperature sensor
17&Nȍƒ&
Temperature probe of the external air, located at rear, air inlet of the
heat pump
108
In W. S. Temperature sensor
17&Nȍƒ&
Water temperature probe, positioned on the return pipe of the heat
pump
111
Out W. S. Temperature sensor
17&Nȍƒ&
Water temperature probe, positioned on the delivery pipe of the heat
pump
109
Clamps
Device to be
connected
Electric features Description
Parameter of
reference
1-2 Temperature sensor*
17&Nȍƒ&
Remote external air temperature probe. It can be used as alternative to
that on machine, after having disconnected the “
Air Ext. S .” sensor
108
3-4 Temperature sensor*
17&Nȍƒ&
It must be used: In systems with circuit "HIGH" temperature (fan coil)
and "LOW" temperature (radiant) with par. 110 = 1.
For the use of systems with circuit "HIGH" temperature (fan coil) and
"LOW" temperature (radiant), contact your authorized service center;
accumulation inertial system with par.110 = 2. Contact your authorized
service center.
111
5-6
Temperature sensor
or DHW thermostat
DHW Thermostat:
Free contact digital
input, closing current
referred to mass 0.5
mA
Temperature sensor:
17&Nȍƒ&
DHW tank thermostat.
It is possible to alternatively use a temperature probe, after having set
parameter 202=1
112,123
IN-COM-
12V
Humidistat*
Free contact digital
input, closing current
referred to mass 0.5
mA
Room humidity safety probe 113
7-8
Switch for remote
control*
Free contact digital
input, closing current
referred to mass 0.5
mA
On/Off remote control 117
9-10
Switch for remote
control*
Free contact digital
input, closing current
referred to mass 0.5
mA
Maximum frequency limit remote control 115
11-12
Switch for remote
control*
Free contact digital
input, closing current
referred to mass 0.5
mA
Heating/Cooling mode change remote control 116
13-14
Switch for remote
control*
Free contact digital
input, closing current
referred to mass 0.5
mA
Set point remote control, for use of fan coil 114
+ -
Radiant system
mixing valve. Signal*
Powered analogical
output not dangerous
(SELV) 0.20mA
0-10Vcc modulating signal for the radiant system mixing valve 240
26-27
Radiant system
mixing valve. Power
supply*
24V ~ 3VA max
Auxiliary power supply
24V Power supply for the radiant system mixing valve
96
Section II :: Installation and maintenance EN