Rehau NEA Smart Base Station 24 V Installation Instructions Manual Download Page 7 | Manualshive

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3.2.1 External change-over signal

HZ 5

HZ 6

HZ 7 HZ 8

HZ 9

HZ 10

HZ 11 HZ 12

pump

1 2

boiler

1 2

ECO

1 2

CO

1 2

H %

1 2

HZ 1

HZ 2

HZ 3 HZ 4

1

1

1

1

1

1

2

2

2

2

2

2

1

1

1

1

1

1

2

2

2

2

2

2

1

1

1

1

1

1

2

2

2

2

2

2

N

N

L

L TB

T4AH

N

L

Cooling

Heating

Fig. 3-3 Terminal change-over signal

If an external change-over signal is used, the overall installation
switches accordingly between heating and cooling.

3.2.2 Pump/boiler/chiller

HZ 5

HZ 6

HZ 7 HZ 8

HZ 9

HZ 10

HZ 11 HZ 12

pump

1 2

boiler

1 2

ECO

1 2

CO

1 2

H %

1 2

HZ 1

HZ 2

HZ 3 HZ 4

1

1

1

1

1

1

2

2

2

2

2

2

1

1

1

1

1

1

2

2

2

2

2

2

1

1

1

1

1

1

2

2

2

2

2

2

L1‘

TB

L2‘

L1 L2

T2A

N

L

Boiler

24 V

Fig. 3-4 Terminal for pump and boiler

The boiler terminal switches a boiler or chiller. Additionally, a pump
can be supplied directly with power and switched.
The use of a relay to switch a pump is recommended.

3.2.3 Optional dew point sensor

HZ 5

HZ 6

HZ 7 HZ 8

HZ 9

HZ 10

HZ 11 HZ 12

pump

1 2

boiler

1 2

ECO

1 2

CO

1 2

H %

1 2

HZ 1

HZ 2

HZ 3 HZ 4

1

1

1

1

1

1

2

2

2

2

2

2

1

1

1

1

1

1

2

2

2

2

2

2

1

1

1

1

1

1

2

2

2

2

2

2

N

N

L

L TB

T4AH

Umschalten der Anlage auf Kühlen durch Bedienung am RBG

H

N

L

Dew point

sensor

Fig. 3-5 Terminal for dew point sensor

Dew point sensors (to be provided by others) are used to prevent
condensation when in cooling mode.
The dew point alarm is triggered when the contact of the dew point
sensor is

closed

.

3.2.4 Pilot function for change-over heating/cooling

HZ 5

HZ 6

HZ 7 HZ 8

HZ 9

HZ 10

HZ 11 HZ 12

pump

1 2

boiler

1 2

ECO

1 2

CO

1 2

H %

1 2

HZ 1

HZ 2

HZ 3 HZ 4

1

1

1

1

1

1

2

2

2

2

2

2

1

1

1

1

1

1

2

2

2

2

2

2

1

1

1

1

1

1

2

2

2

2

2

2

L1‘

TB

L2‘

L1 L2

T2A

L1 L2

N

L

Heating

Cooling

Fig. 3-6 Usage of the "Boiler" output as a pilot signal for change over

If no external change-over signal is available, the internal pilot function
of the base station can be used for switching the overall installation
between the operating modes Heating and Cooling. A relay used by
the base station for switching over is used for this.

7

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Summary of Contents for NEA Smart Base Station 24 V

Page 1: ...NEA SMART BASE STATION 24 V WIRED Installation Instructions ...

Page 2: ...sioning 10 4 1 First commissioning 10 4 2 Connecting pairing separating base stations 10 4 3 Allocation of a room control unit to a heating zone pairing 11 4 4 Perform connection test 11 4 5 System configuration 11 4 5 1 System configuration with microSD card 11 4 5 2 Configuration with Nea Smart room control unit D 11 4 6 Resetting the factory settings 12 5 Exercise functions and safe mode 14 5 1...

Page 3: ...ists The electrical installations must be performed according to the current VDE regulations as well as according to the regulations of your local electric power utility company These instructions are intended for use by a qualified person who is holding an official certificate in one of the following professions electrician or electronics engineer accord ing to the profession designations officia...

Page 4: ...n High temperature limiter active 4 Power green permanenton Base station ready 5 Pump green permanenton Pump output active 6 Boiler green permanenton Lightsupwhenboileroutputisactiveiftheboilerrelayisusedforboilercontrol 7 Cool H blue permanenton Cooling mode active Flashing Condensation detected 8 Master yellow permanenton Base station is defined as master Flashing Base station is defined as slav...

Page 5: ...CO Potential free input for external timer 7 Change over Potential free input according to SELV for external change over signal 8 Dew point sensor Potential free input according to SELV for dew point sensor 9 Actuators 12 connections for thermal actuators UNI 24 V 10 RJ45 connection Ethernet interface for the integration of the base station into the home network 11 RJ12 connection Connection for a...

Page 6: ...f the control system depends on many factors and must be planned and carried out carefully by the installer The following cable sizes are compatible with the terminals solid cable 0 5 1 5mm multiple stranded cable 1 0 1 5mm 8 9mm insulation stripped off the cable Actuators with factory fitted cable sleeves can be used Both L1 L1 terminals share a rail and both L2 L2 terminals share a rail pump 1 2...

Page 7: ...ay to switch a pump is recommended 3 2 3 Optional dew point sensor pump 1 2 boiler 1 2 ECO 1 2 CO 1 2 H 1 2 HZ 1 HZ 2 HZ 3 HZ 4 1 1 1 1 1 1 2 2 2 2 2 2 N N L L TB T4AH Umschalten der Anlage auf Kühlen durch Bedienung am RBG H N L Dew point sensor Fig 3 5 Terminal for dew point sensor Dew point sensors to be provided by others are used to prevent condensation when in cooling mode The dew point alar...

Page 8: ...be used However it is also possible to use an existing cable with at least 2 wires The country specific standards and regulations must always be observed however 3 2 7 System BUS HZ 5 HZ 6 pump 1 2 boiler 1 2 ECO 1 2 CO 1 2 H 1 2 HZ 1 HZ 2 HZ 3 HZ 4 1 1 1 1 1 1 2 2 2 2 2 2 1 1 1 1 2 2 2 2 N N L L TB T4AH System BUS B GND 24V A System BUS B GND 24V A System BUS B GND 24V A 1 7 Fig 3 9 Base station ...

Page 9: ... devices in the network Compare to the MAC address see type sign in order to find out the IP address allocated to the base station Note the IP address of the base station and enter it into the address bar of the web browser in order to open the web interface Direct connection to PC laptop Open the network settings in the PC laptop and assign the IP ad dress 192 168 100 1 as well as the subnet mask...

Page 10: ...hanged between the base stations The master base station centrally controls the directly connected functions components CO input output if the pilot function is activated Boiler output Pump output 1 2 3 4 5 6 7 Slave Slave Master Fig 4 1 System with multiple base station The base station to which the components are connected must be configured as master Further base stations can only be paired wit...

Page 11: ...ating status 2 If there is no activation the signal is interrupted Check whether the room control unit is paired with the base station whether all connections have full contact whether the communication bus wiring is not damaged 4 5 System configuration The base station is configured either via microSD card the base station web interface or the service level on the Nea Smart room control unit D 4 ...

Page 12: ...n degree Celsius and degree Fahrenheit 0 C 0 F 1 Pump configuration 130 Pump output Usethecontrolofalocalrecirculationpump intheheatingcircuitdistributor oraglobalrecirculationpump heatinginstallation 0 local 0 global 1 131 Pump type Selection of the used pump Conventional Pump KP High efficiency Pump HP 1 CP 0 HP 1 132 Pump delay Time delay between demand signal and acutal activation of pump 4 mi...

Page 13: ...n safe mode 15 min min 182 Cycle duration PWM heating Control duration in heating operation 25 183 Cycle duration PWM cooling Control duration in cooling operation 0 Valve exercise 190 Time until activated Running time since last activation 14 d d 191 Duration of valve exercise Duration of valve exercise 0 function deactivated 5 min min Pump exercise 200 Time until activated Running time since las...

Page 14: ...perature can be set via the microSD card via the software surface of the Ethernet variant or via the service level of the NEA Smart room display unit parameter 161 5 1 4 Dew point monitoring If the installation is equipped with a dew point sensor provided by others the valves of all heating zones are closed if condensation is detected in order to avoid damage due to moisture The dew point sensor i...

Page 15: ...aturedropsagainbelowthepresetlimit Pump Error CoolH onlycoolingoperation 0 1 2 3 4 Duration in seconds Condensation detected valves are closed Thenormalcontroloperationisautomaticallyresumedwhennocondensationisdetectedanymore Cool Heating zone 0 1 2 3 4 Duration in seconds Safe mode active Check bus line for interruptions Carry out a connection test Replace a defective room control unit HZ Tab 6 1...

Page 16: ...a way that it cannot accidentally be switched on Prior to replacing the fuse and connecting the power again always check the wiring and connected components for any faults Only use the specified fuse for this base station T2A 5 x 20 mm 2 3 4 5 6 Fig 6 2 Changing the fuse 6 3 Cleaning Only use a dry and solvent free soft cloth for cleaning 1 16 ...

Page 17: ...se cannot accidentally be switched live 7 2 Disposal The base stations must not be disposed of with domestic waste The operator has the duty to dispose of the units through appropriate collection points The separate collection and orderly disposal of all materials will help to conserve natural resources and ensure a recycling in a manner that protects human health and the environment If you need i...

Page 18: ...18 NOTES ...

Page 19: ...19 NOTES ...

Page 20: ...wever it is to be regarded as non binding information Working conditions and use under conditions for which the product was not intended and over which we have no influence exclude any claim resulting from our information We recommend that a suitable check is made as to whether the REHAU product is suitable for the envisaged purpose Application use and processing of the products is carried out bey...

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