Heating And Cooling System With Mix Of Wireless And Wired Room Units And U-Module (For Mixed Circuit) - Rehau NEA SMART 2.0 Service Manual

5.6.4

Heating and Cooling system with mix of wireless and wired Room units and U-Module (for mixed circuit)

Fig. 5-5 NEA SMART 2.0 system, room control for heating/cooling with control for a mixed circuit
Zone bus (ZOBUS) to connect the Room units
ZOBUS
System bus to connect slave units or U-Modules
SYSBUS
1 NEA SMART 2.0 Base 24 V, central control unit (master);
for up to eight rooms
2 NEA SMART 2.0 Transformer 24 V
3 Thermal actuators 24 V on manifold
4 NEA SMART 2.0 Room unit wired, to measure the room
temperature and room air humidity
5 NEA SMART 2.0 Room unit wireless, to measure the room
temperature and room air humidity
6 LAN/WLAN interface to connect the system to router and
cloud
Tab. 5-13 Heating and Cooling system with mix Room units and U-Module for mixed circuit
7 Router for LAN/WLAN home network and connection to cloud
8 Output signal from the Base to heat / cold generators
9 Output signal from the Base to (global) pump
10 NEA SMART 2.0 U-Module for mixed circuit
11 VL/RL sensor, temperature sensor to measure flow and return
temperature
12 Pump for mixed heating circuit
13 3-way mixing valve with 0 ... 10 V actuator (24 VAC, 0 ... 10 V
actuation)
SYS B U S
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