Nea Smart 2.0 Base 24 V - Rehau NEA SMART 2.0 Service Manual

12.11

NEA SMART 2.0 Base 24 V

Material number: 13280241001
Functional description
Central controller for NEA SMART 2.0 control system for energy
efficient operating of radiant heating and cooling systems in combina-
tion with radiators, flow temperature control, dehumidifiers.
Suitable for all Nea Smart 2.0 room units and probes in Bus- and
RC technology (hybrid technology).
Operating and monitoring of system functions by REHAU app,
connection to REHAU cloud.
Room temperature control of up to 8 rooms, up to 12 actuators can
be connected.
Expendable via zone bus (ZOBUS) by R-Module for 4 additional
Technical data:
Operating voltage
Power consumption
Digital outputs
4 relay outputs (dry contacts) 230 V, 5 A, Class II
Fuse
Digital inputs
Analogue inputs
Analogue outputs
RC Transmission frequency
Temperature measurement range
Bus system 1
Bus system 2
WLAN
LAN
Safety class
Degree of protection
CE conformity according to
Degree of contamination
Rated impulse voltage
Dimensions (W x H x D in mm)
Housing material
Housing color
Weight
Ambient temperature
Ambient humidity
Storage/transport temperature
Area of application
132
rooms, system expansion via system bus by up to 4 additional NEA
SMART 2.0 Base 24 V, this allows up to 60 rooms to be controlled.
Additional functions by NEA SMART 2.0 U-Module: flow temperature
control or control of dehumidifiers.
4 relay outputs (dry contacts) for control of pump, dehumidifier, boiler
and chiller, 4 digital inputs for change over signal, dew point monitor,
mode selection
Communication possibilities:
- ZOBUS (2-wire bus for Nea Smart 2.0 Room Units) and 869 MHz RC
network for Nea Smart 2.0 Room Units
- System bus for connection of extension modules and Nea Smart 2.0
Base 24 V
- WLAN and LAN for connection to router and internet, integrated
web pages for installation and operating by web browser.
24 V AC ± 15 % / 50 Hz
3 W (without actuators, without R-Module, without U-Module)
8 Triac outputs for thermal actuators, switching capacity 1 A, 24 VAC,
maximum load per output: 4 REHAU Actuator UNI/MINI 24 V
T2A
4 inputs for dry contacts
-
-
869 MHz
100 m outdoor, typical 25 m in buildings
Zone bus (ZOBUS): 2-wire bus system, polarity free, maximum length 100 m, no twis-
ted pair or shielded cable needed
System bus: 3-wire RS 485 bus system, maximum length between 2 controllers 250 m,
absolute maximum length is 500 m. Twisted pair and shielded cable needed.
IEEE 802.11n, WPA2
IEEE 802.3 10/100 Base-T
II
IP20
EN 60730
2 (IEC 60664-1)
2 kV (IEC61000-4-5)
317 x 83,5 x 52,6
PC/ABS
white (similar RAL 9003)
0,535 kg
0 °C to +50 °C
< 95 % r.H., non-condensing
–25 °C to +60 °C
In enclosed rooms