Rehau BA Installationshandbuch

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9FIXED FLOW TEMPERATURE CONTROL REQUIRED COMPONENTS FOR FIXED FLOW TEMPERATURE CONTROL2.02.1This table should help you in identifying which components

10FIXED FLOW TEMPERATURE CONTROLFIXED TEMPERATURE MIXING OPTIONS2.02.22.2.1 Compact Mixer Unit- Only for domestic/light commercial applications- For

11BoilerZVManifold Flow HeaderManifold Return HeaderZVAVBPVPVTRVLSVCPSVRSJunction Box BA Controller Radiator CT2/R CT2/HWHot Water SensorHWSHot Water

122.2.3a Before the system is switched on, the following settings have to be carried out:- Balancing valve (BV) set to fully open as per recommendati

13To improve the response time even further it is recommended to fit a differential bypass valve (BPV) as close to the thermostatic mixing valve (TMV

14FIXED FLOW TEMPERATURE CONTROLFIXED TEMPERATURE MIXING OPTIONS2.02.2Data Thermostatic Mixing Valves (Fixed Flow 3-Port)For up to 15kW:Dimensions :

152.2.7 Required Components for Zone ControlMasters/ Add On modulesQuantityComponents REHAU Art. No. Heating Heating/CoolingREHAU BA 202236-001 No Yes

16SUPPLY230VACBOILERB1 B2X-RelaySEC. PUMPVOLT FREE230VACLLL NNNL1NL221CLNHigh LimitTemperatureStat (HLS) BA Controller THERMAL ACTUATORS1 2 3 4 5 6L

17NLSUPPLY230VACBOILERB1 B2X-RelaySEC. PUMPVOLT FREE 230VACLLL NNNL1NL221CLN2 Port Zone ValveSL PLZone Valve wiring connectionsfor 230v boiler Switchi

18SUPPLY230VACBOILERB1 B2X-Relay SEC. PUMPVOLT FREE 230VACLLL NNNBA Master Controller (Main Control)THERMAL ACTUATORS1 2 3 4 5 6L N L L L L LN N N N N

1REHAU INTELLIGENT FLOOR HEATING/COOLING CONTROLS INDEX1.0 . . . . . . Principles of Underfloor Heating/Cooling . . . . . . . . . .

192.3.3 Dew Point ControlThe dew point control of the system is performed by the BA Master Controller coupled with the Humidity sensors positioned wit

20FIXED FLOW TEMPERATURE CONTROL2-PORT ZONE VALVE (ZV) 2 . 02.42.4.1 Working Principle The 2-Port zone valve (ZV) has a dual function:- To separate t

21FIXED FLOW TEMPERATURE CONTROL2-PORT ZONE VALVE (ZV)2.02.4Fitting(always read and follow instructions supplied with components)- The valve should b

22Component Article numberREHAU BA, Master Controller225113-002(24V)Constant TemperatureThe REHAU BA Master Controller is suitable for connecting up t

23Component Article numberREHAU Remote Air Sensor228007-001(5V)Remote air sensor works only in conjunction with a TM thermostat. (Also available in Br

24Component Article numberBA Cooling Kit202233-001(5V)The BA Cooling Kit contains a humidity sensor, WLAC switch and a fl ow temperature sensor. This k

25Component Article numberREHAU RF CT2 / R, Radiator Controller202249-001(5V)This wireless 24/7 clock combined with the 4-event timer enables the user

26This sophisticated electronic control system was designed specifi cally for fl oor heating applications in the residential and light commercial sector

273.3 Required Components for Zone ControlThis table should help you identifying which components you need dependent on your choice of zone temperatur

28MASTERADD ON MODULEADD ON MODULE2351478116109SENSORS CONNECTED IN BUS MODE (DAISY CHAIN)MASTER23145786910SENSORS CONNECTED IN STARCONTROL SYSTEM FIR

2REHAU INTELLIGENT FLOOR HEATING/COOLING CONTROLS INDEX4.0 . . . . . . Control System First Fix . . . . . . . . . . . . . . . .

294.2.1 Location of Room, Humidity Sensor and Air SensorThe requirement for the correct positioning room sensors cannot be overstated. Care must be ta

30CONTROL SYSTEM SECOND FIXREHAU BA CENTRAL CONTROL UNIT5.0 5.1The REHAU BA control unit can operate 8 heating zones, each of which may have a number

3123. Connection of a mains 230v supply and Volt free connection to the boilerEnsure that the electrical installation is carried out in accordance wit

32SUPPLY230VACBOILERB1B2X-RELAYSEC. PUMP230VACLLNNC1C2UFH PUMPUFHCONTROL SYSTEM SECOND FIXELECTRICAL CONNECTION 5 . 05.224. UFH pump output on BA Mast

33SUPPLY230VACBOILERB1 B2X-RELAYSEC. PUMP230VACLL NNC1 C2UFH PUMPUFH PUMP OUTPUT ON FS/FS-C controllerUFHSUPPLY230VACBOILERB1 B2X-RELAYSEC. PUMP230VAC

34SENSOR BUS+T+TSENSOR BUS+ +TT+ +TT+ +TT Connect to and to++TTSensor SensorMaster Controller27. Connecting Room Sensors CONT

35THERMAL ACTUATORS 24VL N L L L L LN N N N NOUT PUT 1L N L L L L LN N N N NTHERMAL ACTUATORS 24VL LN NL LN NOut put 2 Out put 3 Out put 4 Out put 5 O

36CONTROL SYSTEM SECOND FIX ROOM SENSORS INTERNAL CONNECTIONS5.0 5.330. Removing the front cover (all sensor variants)SENSOR BUS+T+TSENSOR BUS+ +TT+ +

37Mode selection switch Temperature dial Mode selection switch Temperature dial Jumper in position for max. floor surface temperatureJumper in positio

38WIRELESS SENSORS/CONTROLLERS SET UPRADIO FREQUENCY (RF)6.06.1REHAU wireless sensors can be used in conjunction with wired sensors. When using wirele

39.0 . . . . . . Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 449.1 . . . . . . P

396.1.2 Technical Data Supply Voltage24 V from MasterDistance to masterMax 3 mEnclosureIP 21Ambient temperature range0 to 40°CCommunication Frequency8

40SETTING UP BA MASTER CONTROLLER (COOLING)7.0 Default settings on the BA master (Cooling)Description Factory settingsDay temperature 24°CNight tempe

417.5 Using DehumidifierIf cooling is being limited due to high humidity a dehumidifier can be enabled by the BA Master Controller. The dehumidifier can

42SYSTEM START UP AND OPERATING INSTRUCTIONSSETTING THE SENSOR CHANNEL NUMBER 8.0 8.1A) DisplayB) Down adjustment C) OK - Accept41. Controller number

43SYSTEM START UP AND OPERATING INSTRUCTIONSREHAU BA MASTER CONTROLLER8.0 8.2The BA Master Controller comes with pre-set temperatures, these pre-set v

44COMMISSIONING9.0The definition of commissioning, according to CIBSE (Chartered Institution of Building Services Engineers) is the advancement of an i

45CT SET UP GUIDEPROGRAMMABLE ROOM SENSOR, DOMESTIC HOT WATER,RADIATOR AND TWO STAGE CONTROLLER10.010.1CT2 Programmable Room Sensor, CT2 / R Radiato

461. The time will have to be set as soon as the CT2 Programmable Room Sensor is switched on for the first time, the hour digits start to flash.1.1

471.6 Repeat for each channel as desired. To leave this menu, either go through all 14 channels and press ESC (below) or don’t press any butto

482.1a Hold the button for 3 seconds. This screen will be displayed. This shows the start time of the first event, DAY, which is the first time

4REHAU Intelligent ControlsTechnical DataPower Supply230V AC +10/-15%, 50 HZMax load pumps and Thermal actuators4A + 35VABoiler relayVolt free signal.

492.6a Days 6 and 7 (Saturday and Sunday) only have 2 events - DAY and NIGHT. This screen shows the start time of day event. Adjust if required as

504. Changing event sequence over different days (if required) Hold UP and DOWN buttons to reach sub-menus. Scroll through and press on Pro. The

515.2 Select LoLi if minimum floor sensor fitted.5.3 Adjust minimum floor sensor temperature as above.6. To See Current Sensor Info Hold UP and DOW

527.1 Press UP and DOWN to scroll through options and to select desired scale. The first is 24 hour clock and temperature in celsius.7.2 24 hour

539.2a Use the UP and DOWN arrows to either select ON.9.2b or OFF.Press to confirm, then the next channel will appear.9.3 ‘LEAP’ will start to

54DOMESTIC HOT WATER (DHW), RADIATORS AND TWO STAGE CONTROLLERDOMESTIC HOT WATER (DHW)11.0 11.1Working PrincipleThe REHAU CT2/HW is provided with a r

55DOMESTIC HOT WATER (DHW), RADIATORS AND TWO STAGE CONTROLLERRADIATORS11.0 11.2Working PrincipleLike traditional control of radiator circuit, REHAU

56DOMESTIC HOT WATER (DHW), RADIATORS AND TWO STAGE CONTROLLERTWO STAGE ROOM TEMPERATURE CONTROLLER11.0 11.3Working PrincipleREHAU CT2/2 provides two

57SPECIAL FUNCTIONSNETWORKING MULTIPLE CONTROLLERS12.012.1In larger buildings with more than 14 zones where multiple manifolds are utilised, it is pos

58SPECIAL FUNCTIONSDIP SWITCHES12.012.2DIP Switch Function Description DIP switches (located on the master controller)1 Turn on to activate install m

5PRINCIPLES OF UNDERFLOOR HEATING/COOLINGPRINCIPLE OF UFHThermal ComfortREHAU underfloor heating system operates on the basis of low surface temperatur

59Dependent upon the control system configuration it is possible to override all the automatic functions of the control system with a single function.T

60SPECIAL FUNCTIONSCHECKING CONTROL SYSTEM OPERATION12.012.4System check procedure1. Sensor check:a. Switch on DIP-3 to activate sensor check - power

61TROUBLESHOOTING AND ERROR/FAULT MESSAGESTROUBLESHOOTING13.013.1Problem Possible cause & SolutionChannel light is not coming on (When in Sensor

62TROUBLESHOOTING AND ERROR/FAULT MESSAGESTROUBLESHOOTING13.013.1Problem Possible cause & SolutionMixing valve does not operate correctly (When in

63During normal operation the green power LED will be ON when the Master Controller is energised. The red output Channel LED’s (1 to 8 on the Master C

64Flashing output LED (red):The appropriate output channel LED can flash, indicating that the Room Sensor or Controller on that channel has a fault/err

65RESETS14.0There are two different reset actions that can be used on the BA Master Controller:Resets To Enable FunctionHard Reset* (used if there is

66SENSOR FAILURE/ACTUATOR AND PUMP EXERCISE15.0 15.1 Sensors/Controller FailureIf a Room sensor/controller is defective or if the communication to the

Wiring Schematic - next generationrehaU Ba controller With aDD on moDUle16.0REHAUCTACTUATOR 1 & 2ACTUATOR 3 & 4ACTUATOR 5ACTUATOR 6ACTUATOR

www.rehau.co.uk 864.602EN/268/E&T/06.08Our verbal and written application engineering advice is based upon experience and the best of our knowledg

6PRINCIPLES OF UNDERFLOOR HEATING/COOLINGPRINCIPLE OF UFCAdvantages of a Underfloor Cooling System - High level of comfort- Draughts do not occur-

7PRINCIPLES OF CONTROLLING FLOOR HEATING SYSTEMS (FH)FIXED FLOW WATER TEMPERATURE (FFT) SYSTEMA conventional boiler system including radiators and do

8PRINCIPLES OF CONTROLLING FLOOR HEATING SYSTEMS (FH)ZONE CONTROL1.01.4The REHAU INTELLIGENT zone control system is a simple electronic control syste