emmeti EH0618DC, Инструкция по установке и эксплуатации

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5. INSTALLATION
CONNECTION SPECIFICATIONS TO “PCB TERMINAL BLOCK” - Connections in very low safety voltage
Connector Connected device Electric features Description
Parameter of
reference
Air Ext. S.
Temperature sensor
Analog input
NTC 10k
Ω
/ 25°C
Probe temperature of the external air, located at rear, air inlet of the heat pump
(air inlet)
108
In W. S. Temperature sensor
Analog input
NTC 10k
Ω
/ 25°C
Probe of water temperature, positioned on the return pipe of the heat pump 111
Out W. S. Temperature sensor
Analog input
NTC 10k Ω / 25°C
Probe of water temperature, positioned on the outlet pipe of the heat pump 109
Connector Connected device Electric features
Type
electric
cable
Description
Parameter of
reference
1-2
Temperature
sensor*
Analog input
NTC 10k Ω / 25°C
BUS-SCS
Possible probe of remote outside air temperature, can be used in
alternative to that of machine edge. See chap. 8.14
108
3-4
Temperature
sensor*
Analog input
NTC 10k Ω / 25°C
BUS-SCS
Temperature sensor return radiant system water.
Alone in place systems with the "HIGH" temperature circuit (fan coil) and
"LOW" temperature (radiant).
For its connection and configuration, please contact your authorized
service center EMMETI.
111
5-6
Temperature
sensor or DHW
thermostat
* digital input
(free contact)
or
Analog input
NTC 10k Ω / 25°C
BUS-SCS
DHW tank thermostat.
It is possible to alternatively use a temperature probe, after having set
parameter 123=1
112, 123,
122, 126, 130
IN-COM Humidistat*
* digital input
(free contact)
BUS-SCS Connection humidistat security humidity 113
7-8
Switch for remote
control*
* digital input
(free contact)
BUS-SCS On/Off remote control 117
9-10
Switch for remote
control*
* digital input
(free contact)
BUS-SCS Maximum frequency limit remote control 115, 102
11-12
Switch for remote
control*
* digital input
(free contact)
BUS-SCS Heating/Cooling mode change remote control 116, 101
13-14
Switch for remote
control*
* digital input
(free contact)
BUS-SCS Set point 2 remote control, for use of fan coil 114
+ -
Radiant system
mixing valve.
Signal*
§ 0-20 mA analog
output
BUS-SCS
Modulation signal 0-20mA for the mixing valve
of 'radiant system see chap. 8.12
240
26-27
Radiant system
mixing valve.
supply
24V ~ 3VA max Auxiliary
power supply
BUS-SCS 24V ~ power supply for the radiant system mixing valve -
12V-Sig-
GND
LAN*
Power supply (+12V
DC) and serial
communication
BUS-SCS Connecting the room thermostat 1 (CHRONO-TH) 103
- + G
Serial interface
RS-485*
RS-485 Serial
communication
BUS-SCS
Connection for RS-485 interface and Mod-bus communication (RTU)
Modbus connection protocol:
- Baudrate: 9600
- Frame Settings: E 8.1
- Address: 1
- Timeout: 1000
-
(*) Closing current, 0.5 mA to earth
(§) SELV: Ultra low voltage safety
Use BUS-SCS cable for the distribution of electrical signals and data transmission consisting of two flexible conductors twisted together
with a section of 0.50 mmq and protected by an external sheath.
The cable must be laid in dedicated conduits, separated from power cables and far from sources of disturbance. The system must be built in
compliance with the relative project and in compliance with the regulations in force in the place of installation.
Failing this, the company declines all responsibility for the proper functioning of the system implemented.