Rehau BA Installation Manual

REHAU INTELLIGENT FS/FC HEATING/COOLING CONTROLSTECHNICAL & INSTALLATION MANUALBuilding SolutionsAutomotiveIndustrywww.rehau.co.uk

11Please note fixed flow temperature regulation is not suitable for use with FS and FC controllersCP4 Port MxingHLSTSManifold Flow HeaderManifold Retu

12PRINCIPLES OF UNDERFLOOR HEATING/COOLINGZONE CONTROL1.01.4UFH - ManifoldACACACHLSIVIVUFH - ReturnUFH - FlowRS - Room SensorHS - Humidity Sensor (onl

13 PRINCIPLES OF UNDERFLOOR HEATING/COOLINGSET-BACK MODE 1 . 01.51.5.1 Heating A fl oor heating system switches into set-back mode instead of switching

14FLOW TEMPERATURE CONTROLSAFETY ADVICE2.02.1Authorised specialistsInstallation, commissioning, maintenance and repairs of all electrical control comp

15* 4 valves are required to provide safety protection to prevent any cross flow within the 2 systems should the boiler and the chiller operating at t

16 FLOW TEMPERATURE CONTROLFOUR PORT MOTORISED MIXING VALVE (MV) HEATING/COOLING 2 . 02.32.3.1 Working Principle The high or low temperature main syst

17 Required Components QtySupplied by REHAUMixing Valve Actuator 1x YesMale iron to copper adapters 4x NoCirculating Pump (CP) 1x NoIsolating Valve (

18FLOW TEMPERATURE CONTROLFOUR PORT MOTORISED MIXING VALVE (MV) HEATING/COOLING2.02.3H. ANTI ROTATION STUDJ. VALVE SPINDLEK. VALVE PLATEL. VALVE BODYG

19FLOW TEMPERATURE CONTROLVARIABLE TEMPERATURE (VT) MIXING OPTION FOR HEATING/COOLING2.02.4Technical Data Mixing Valve (4 Port)For up to 12kW:Dimensio

20 FLOW TEMPERATURE CONTROLFLOW TEMPERATURE SAFETY OPTIONS 2 . 02.52.5.1 Dew Point ControlThe dew point control of the system is performed by the Heat

3REHAU INTELLIGENT FLOOR HEATING/COOLING CONTROLSINDEX1.0 . . . . . . Principles of Underfloor Heating/Cooling . . . . . . . . . . .

21 FLOW TEMPERATURE CONTROLZONE VALVES (ZV) 2 . 02.62.6.1 Working Principle (HEATING) The 2-port zone valve (ZV) has a dual function:- To separate th

22If fitted in a confined space, sufficient ventilation must be available to keep the valve within its ambient temperature range. Also access must be pro

232.6.3 Working Principle (HEATING & COOLING) In a Heating/Cooling system the zone valves are a safety mechanism. The system is designed not to op

24 REHAU INTELLIGENT FH / C ZONE CONTROL SYSTEMCOMPONENTS OVERVIEW 3 . 03.13.1.1 Components Overview HeatingComponent Article numberREHAU FS Controlle

25Component Article numberREHAU OC Module, Outside Air Temperature Sensor225117-001(5V)The module is only required if the REHAU FS variable temperatur

26Component Article numberREHAU FC Controller202236-001(24V)Variable TemperatureThe REHAU FC controller is suitable for connecting up to 8 zones of mu

27Component Article numberREHAU RC, Wireless Receiver202244-001(5V)The wireless receiver is required to receive signals from wireless sensors/controll

28REHAU INTELLIGENT FH / C ZONE CONTROL SYSTEMWORKING PRINCIPLE3.0 3.2The sophisticated electronic control system was designed specifically for under

29Optimum start controlREHAU CT2 Programmable Room Sensor, Radiator and Two stage controllers have an advanced time clock that learns how quickly a bu

30REHAU INTELLIGENT FH / C ZONE CONTROL SYSTEMWORKING PRINCIPLE3.0 3.23.2.1 Weather CompensationWeather compensation using Intelligent controlsWeathe

4REHAU INTELLIGENT FLOOR HEATING/COOLING CONTROLSINDEX4.0 . . . . . . Control System First Fix . . . . . . . . . . . . . . . .

31Note Maximum manifold Size = 12-Port3.2.2 Required Components for Zone ControlThis table should help you identifying which components you need depen

32CONTROL SYSTEM FIRST FIXCABLES REQUIREMENTS4.0 4.1All REHAU control systems must be installed:- By a competent person.- In accordance with all loc

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

34CONTROL SYSTEM FIRST FIXWIRELESS SENSORS/CONTROLLERS SET UP/RADIO FREQUENCY (RF) 4 . 04.3REHAU wireless sensors can be used in conjunction with wire

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

36CONTROL SYSTEM SECOND FIXREHAU FS/FC CONTROL UNITS 5 . 05.1The REHAU FS and FC control unit can operate 8 zones. The REHAU FC zones can be heating o

375.2.3 Boiler ConnectionThe REHAU FS/FC control unit has a volt free relay, which may be used to switch a boiler or to open a motorised valve.Connect

38CONTROL SYSTEM SECOND FIXMAINS VOLTAGE (230V) ELECTRICAL CONNECTION TO THE FS/FC CONTROLLER5.0 5.25.2.4 X-Relay OutputBoth FS and FC controllers ha

395.2.6 Connecting the Heating/Cooling Zone ValvesThe zone valves REHAU Art No. 230462 (22mm) and Art No. 230472 (28mm) must be used on the system and

40CONTROL SYSTEM SECOND FIXMAINS VOLTAGE (230V) ELECTRICAL CONNECTION TO THE FS/FC CONTROLLER5.0 5.2Pump control with REHAU Add On ModulesThe REHAU A

56.0 . . . . . . System Start Up and Operating Instructions for Heating & Cooling . . . . . . . . 466.1 . . . . . . Mixing V

415.3.1 Connecting the Add On, Extension ModuleThe addition of REHAU Add On extension module will increase the zoning potential from 8 to 14 zones. Th

425.3.3 Connecting Thermal Actuators (TH 1 – TH 8)Maximum 14 x 24 Volt actuators per controller. Ensure that the actuators are connected to the correc

435.3.5 Connecting 4-Port Mixing Valve Actuator To enable the system to be weather compensated the supply pipework to the manifolds must be fitted with

44CONTROL SYSTEM SECOND FIXROOM SENSORS INTERNAL CONNECTIONS5.0 5.4++To ControllerRemote air sensorTM Room SensorUnlike the REHAU TD floor sensor the

45Mode selection switch Temperature dial Mode selection switch Temperature dial Jumper in position for max. floor surface temperatureJumper in positio

46SYSTEM START UP AND OPERATING INSTRUCTIONS FOR HEATING & COOLING MIXING VALVE ACTUATOR6.0 6.140. Variable temperature wiringWhen all electrical

47SYSTEM START UP AND OPERATING INSTRUCTIONS FOR HEATING & COOLING SETTING THE HEATED/COOLED ZONES (CHANNEL NUMBERS) 6.0 6.2A) DisplayB) Down Adju

48SYSTEM START UP AND OPERATING INSTRUCTIONS FOR HEATING & COOLING SETTING UP THE REHAU FS/FC CONTROLLER (HEATING)6.0 6.3The FS/FC controller come

496.3.1 Adjusting the Pre-Set Default Temperatures in the REHAU FS/FC ControllerFunction Factory Setting To modifyDay Temperature ( ) 21°C 1. Loc

50Function Factory Setting To modifySetting the Winter Water Temperature 45°C 1. Locate the winter water temperature symbol ( ) by pressing the

6REHAU INTELLIGENT FLOOR HEATING/COOLING CONTROLSINDEX11.0 . . . . . . Troubleshooting and Error/Fault Messages . . . . . . . . . . .

511. Factory setting2. Example of user settingMAX’ FLOW WATERWinter -3°C (outdoor temperature)= Water temperature > 45°CSummer 25°C (outdoor temper

52SYSTEM START UP AND OPERATING INSTRUCTIONS FOR HEATING & COOLING SETTING UP THE FC CONTROLLER (COOLING)6.0 6.5Function Description Factory Setti

53Function Description Factory Setting To modify(G) System Mode Selection This option will allow the function of the controller to be set the control

546.5.1 Setting up Dehumidifier on the Master ConnectionSYSTEM START UP AND OPERATING INSTRUCTIONS FOR HEATING & COOLING SETTING UP THE FC CONTROLL

55COMMISSIONING7.0The defi nition of commissioning, according to CIBSE (Chartered Institution of Building Services Engineers) is the advancement of an

567.3 Initial System Start Up for Cooling Systems It is important that the initial heating system start up procedure (section 7.2, see page 55) is car

57 8 . 08.1CT SET UP GUIDEPROGRAMMABLE ROOM SENSOR, DOMESTIC HOT WATER,RADIATOR AND TWO STAGE CONTROLLERCT2 Programmable Room Sensor, CT2 / R Radiat

581. 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

591.6 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

602.1a 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

7If a floor heating system is added to an existing heating or hot water system, containing mild steel pipes, a strainer must be fitted straight after th

612.6a 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

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

635.2 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

647.1 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

659.2a 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 t

66DOMESTIC HOT WATER (DHW), RADIATORS AND TWO STAGE CONTROLLERDOMESTIC HOT WATER (DHW)9.0 9.1BoilerCP4 Port Mxing ValveTSManifold Flow HeaderManifold

67DOMESTIC HOT WATER (DHW), RADIATORS AND TWO STAGE CONTROLLERRADIATORS9.0 9.2BoilerCP4 Port Mxing ValveTSManifold flow headerManifold return headerZ

68DOMESTIC HOT WATER (DHW), RADIATORS AND TWO STAGE CONTROLLERTWO STAGE ROOM TEMPERATURE CONTROLLER9.0 9.3Working PrincipleREHAU CT2/2 provides two s

69SPECIAL FUNCTIONSNETWORKING MULTIPLE CONTROLLERS10.010.1BoilerCPTSPDBCPPDBIVPV OCCirculating PumpPressure Differential ByepassIsolating ValvePressur

70SPECIAL FUNCTIONSDIP SWITCHES10.010.2DIP Switch Function Description DIP switches (located on the master controller)1 Turn on to activate install m

8PRINCIPLES OF UNDERFLOOR HEATING/COOLINGPRINCIPLE OF UFHThermal ComfortREHAU underfloor heating system operates on the basis of low surface temperatur

71Dependent upon the control system configuration it is possible to override all the automatic functions of the control system with a single function.T

72SPECIAL FUNCTIONSCHECKING CONTROL SYSTEM OPERATION10.010.4System check procedure1. Sensor check:a. Switch on DIP-3 to activate sensor check - power

73TROUBLESHOOTING AND ERROR/FAULT MESSAGESTROUBLESHOOTING11.011.1Problem Possible cause & SolutionChannel light is not coming on (When in Server

74Problem Possible cause & SolutionMixing valve does not operate correctly (When in install mode)Incorrect connection, see master wiring diagram f

75During 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

7611.2.2 Flashing Output LED (red):The appropriate output channel LED can flash, indicating that the Room Sensor or Controller on that channel has a fa

77RESETS 1 2 . 0There are two different reset actions that can be used on the FS Master Controller:Resets To Enable FunctionHard Reset*(used if there

78SENSOR FAILURE/VALVE AND PUMP EXERCISE13.0 13.1 Sensor/Controller FailureIf a Room Sensor/Controller is defective or if the communication to the uni

Wiring Schematic - next generationrehaU FS maSter controller With aDD on moDUleT T+ +CHANNEL 1SUPPLY230VACBOILERB1 B2X-RELAY SEC. PUMP230VACLL NNLINKC

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

9PRINCIPLES OF UNDERFLOOR HEATING/COOLINGPRINCIPLE OF UFCAdvantages of a Underfloor Cooling System - High level of comfort- Draughts do not occur-

10PRINCIPLES OF UNDERFLOOR HEATING/COOLINGFLOW TEMPERATURE CONTROL 1.01.3HeatingA boiler for a conventional combined radiator and domestic hot water s