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1. E1 1 flash The master has lost communication to the room sensor The fault is corrected by re establishing the connection to the Room Sensor and the fault condition will be automatically reset once correct communication is resumed If the room sensor is defective and has to be changed or if it has been deliberately removed it is necessary to make a HARD RESET NOTE If the room sensor is of the WIRELESS type the error fault message could be an indication that the power has failed and that the internal battery of the room sensor needs to be replaced E2 2 flashes The internal sensor in the room sensor controller is defective The fault can only be corrected by replacing the room sensor Controller Remember to make a HARD RESET after installing the new room sensor controller E3 3 flashes The limit sensor on the room sensor controller is defective Replace the faulty sensor Reset is NOT required E4 4 flashes Defective WLCT room controller If a room controller operating a group of room sensors becomes defective the remaining room sensors will continue control within the maximum and minimum limits programmed into the Room controller E5 5 flashes Two or more room controllers are trying to control this output Check AREA setting on the room controllers RESET There are 2 different reset actions that can be used RESET If the button is pressed for 5 seconds a HARD RESET will be initiated Indicated by all the red output LED
2. If a limit sensor is connected to the Room sensors The lowest value of any Limit sensor is taken as the MIN Limit Temperature The highest value of any Limit sensor is taken as the Max Limit Temperature Channel 15 position F on the switch Party and vacation function Special function see FUNCTIONALITY Supply water temperature sensor and mixing valve Fig 11 Supply water temperature limit sensor This feature is not available on the basic master s version WLM2 1BA and WLM2 3BA The limit sensor is directly connected to the master at the terminals marked limit sensor Sensor type ETF 1899A must be used The temperature sensor should be placed on the supply water pipe to the underfloor heating e system If a limit sensor is installed without a weather compensation module WLOC the master f will control the maximum water temperature The factory default setting is 55 C but this value can be changed via the displav fra If a weather compensation module WLOC is added to the svstem the master will varv the supplv water temperature setting based on the outdoor temperature A standard compensation curve has been programmed at the factorv If needed the curve can be changed see separate USER MANUAL MASTER TVPE WLM2 Mixing valve actuator control Control of a mixing valve actuator is possible using the digital masters WLM2 1FS and WLM2 3FS The actuator must be 24Vac powered max 6VA and positioned via the 0 10V DC signal and sho
3. It is possible to control a of a secondary heat source in a room e g a backup radiator use the spesial mode in the WLCT 2 Room controller In addition to the primary underfloor heating output this WLCT 2 room controller is able to control a second output as a boost function witch will be activated only if the temperature cannot be schieved by the underfloor heating within a preset time period e The WLCT 2 must be fixed in a convenient position for the user but which is representative of the room or area temperature Connect the Room controller to the WLM master using the sensor controller bus Set the channel number on Room controller to correspond with the output on the WLM master that is connected to the underfloor heating actuator e The next numerical output on the WLM master MUST be used for the secondary boost function Note To avoid overloading the WLM master we recommend that the secondary output is used as a signalling function for a remote relay Please refer to the technical information p 24 p 25 Commissioning mode Supply temp RESERVED DEHUM BR965A30b X RELAY COMMISSION MODE LEARN MODE BOILER TEST INSTALL MODE co N LO ioe N LL LL O Replacing equipment Digital masters include a special commissioning mode which allows the temperature of the supply water to be controlled to assist the drying out of a newly laid concrete floor To start this function Se
4. The function of the relay is determined by the setting of the DIP switches The functions that the relay can perform and the appropriate DIP switch settings are as follows High limit zone valve Cooling device module Cooling device module alternative p 17 The X relay output is volt free as shown in fig 8a If the relay is required to be used as aL amp N switch connect a link wire from mains L to C1 connect the device L to C2 and the device N to mains N Boiler pump Where a boiler primary pump is required to be switched on from the master the relay output can be used for this purpose The relay will be activated 10 seconds after the UFH circulating pump has started High Limit Zone Valve This function is used where an additional protection is required to prevent boiler water entering the underfloor system when the system is off or when the supply water exceeds 65 C An additional sensor ETF 1899A and a zone valve is connected as per attached pic Cooling device module The relay output can be used to provide a volt free signal to a heatpump or to a K MOD switching module where a chiller is utilized to provide the cooling water The relay is on when there is a cooling demand Cooling device module alternative The relay output is always on in cooling mode and off in heating mode Thermal Actuators Thermoheads Fig 6 THERMAL ACTUATORS L N L N L N L N L N L N L N L N Q2 2 2 2 2 2 2 2 2 2 2 2 2 2
5. 57641 01 08 LJE WLM2 WLTA WLTD OJ ELECTRONICS www oj dk taking comfort further CONTENT INSTALLATION MANUAL p 2 8 life QU Sosa A AT A a Quick Installation GUI Gives ncoenccecaadan npeccehssnnbsiedetnseshnseensenanenaerace MEDRE Dep te PADLA PLE Ar AADI NONE EOE BOPITA T U sabie Page 3 Setting up the System i en kB Ennen Page 5 Wireless Systemi ONIY vaceonenn ct smut necena shee nes E A A E E E EE RE Page 5 Testing the Ea d pp a a E a a E a a a E a a A Page 6 Troubleshoot gesessen rie a E A d EEA ii INSTRUCTIONS WLM Underfloor Heating Controller Page 10 Add On Module sssssnnnnnnnnnnnnnnnnnnnn Page 31 Wiring didgraM sasagaran a Page 10 Configuring the Total System 000eeeeeee Page 31 DesCriptON ssri irka kin ki kd Page 13 Product programme seeeennenzenznnzenzenzzz Page 13 Outdoor Compensation Module Page 32 Technical data s riniizotonjeiakiibietjenzaiitttaazoi Page 13 Introduction iisireiisienziettibiekabii ba bkbbbi buri Page 32 EMViNOniMenll ic lt cepccckecinncepnctenseersacesueraereates Page 14 Mounting Page 32 Recycling of obsolete appliances Page 14 Bus connection Outdoor Configuring of the total system 6855 Page 14 compensation module ccceeeeeeeeeees Page 32 Interconnection of WLM2 product Page 32 Installation ms8s8s8ss ann Page 15 Electrical installation eeaeee Pag
6. E1 1 flash E2 2 flashes E3 3 flashes E4 4 flashes E5 5 flashes E6 6 flashes E7 7 flashes E8 8 flashes E9 9 flashes E10 10 flashes E11 11 flashes One or more room sensors room controllers WLH WLAC that are set to channel 0 or channel 15 are no longer sending data to the master control The fault is corrected by replacing the room sensor The master will need to be HARD RESET see below NOTE If the room sensor is of the WIRELESS type the error fault message could be an indication that the power has failed and that the internal battery of the room sensor needs to be replaced One or more room sensors have been set to a channel number which does not exist in the system For example the message will occur if the units are set to channels 9 14 and the required add on AO module are not found in the system The error is corrected by setting the channel number of the room sensor to a channel that does exist within the installed master add on module system Application sensor defect The fault is corrected by changing the temperature sensor If the sensor has been removed deliberately to change the operation of the system follow the HARD RESET instruction below The outdoor compensation module WLOC is defective The fault is corrected by changing the outdoor compensation module If the module has been removed deliberately to change the operation of the system follow the HARD RESET instruction below The exter
7. E L N PE Main supply 230V AC from 10 Amp fused isolator Boiler Demand The master has a volt free relay output that can be used to control a boiler or to open a Fig 4 motorised valve BR965A14a A To control a boiler that requires switching of the live supply take a link from L 230V to the terminals marked BOILER B1 Connect the boiler L to the terminal marked BOILER B2 Connect the boiler N terminal to the N terminal on the master and the boiler E to the master terminal E see fig 7A B To control a boiler that has a pair of dedicated terminals for remote switching e g by a Room sensor connect these terminals to B1 and B2 on the master B1 and B2 terminals are volt free i so they can be used for both a 240V and a 24V circuit from the boiler Main supply 230V AC from Boiler 10 Amp fused isolator as lee BR965A33a Main su pply 230V AC from 10 Amp fused isolator Motorised Pump Output ion panen UFH sr ef ere OUTPUT BOILER B1 B2 C1 C2 ojo Volt free output for boiler control Secondary Volt free pump X output 230V BR965A15b C To control a motorised valve Many motorised valves have wires coloured BROWN and BLUE for power connections In this case BROWN goes to the terminal B2 under the heading BOILER and BLUE goes to the N terminal of the master Then a link from L 230V to the terminals marked Boiler B1 The boiler relay will b
8. p 37 Programming 4 Event Clock Time and Temperature For each event the start time and required temperature needs l l to be set Press OK V button for 3 secs to begin programming For example in the morning you wish the heating to start at 07 00 and the temperature to rise to 25 C Press OK v button for 3 seconds and the start time is displayed Change this to 07 00 with the UP A or DOWN 17 button Press OK v to i S Umie ane temperature confirm The temperature is now displayed Change this to 25 C with the UP A or DOWN 7 button Press OK v button to confirm N Time and temperature This action can now be repeated for the second third and fourth event O Time and temperature These settings will be valid for days 1 5 showing on the display To program the days 6 and 7 repeat the above Days 6 and 7 are usually Saturday and Sunday and only have two events generally morning ON and evening OFF q i Time and temperature The temperature can be set within the range of 5 to 35 C It is also possible to select the heating OFF at that event by reducing the setting to 5 C and then pressing the Y once more l ix Time and temperature Note that when programming the Sleep time event 4 please ensure that this time is before midnight 00 00 Time and temperature p 38 Advanced Settings and Read out Press both UP A and DOWN V buttons together for 3 seconds INFO
9. see later A WLM master has 8 outputs and additional slave module 6 outputs and can be connected creating a system of 14 individual zones Please note that channels 10 to 14 are marked as A through E on the selector A Room sensor set for CH1 will activate the thermal actuator connected to output 1 on the master The channel number can be selected without any power connected to the system The channel of the Room sensor can be changed afterwards if needed If two Room sensors are placed in the same room and set to the same channel the temperature control will work according to the average temperature of both Room sensors Channel 0 Each Room sensor is delivered with the switch in position 0 ensuring that it must be set to operate correctly Channel 0 can also be used for a Room controller controlling a group of Room sensors where the control position should be somewhere central e g the kitchen rather than in the area where the Room sensors are installed Setting it to Ch 0 means that times and temperatures are set on the WLCT for the group but that the WLCT will not control a specific output itself Channels 1 14 A Room sensor set for channel 1 will activate the thermal actuator connected to output 1 on the master If several Room sensors are set to the same channel number they will control in the following way The actual room temperature is calculated as an average The room temperature set point is calculated as an average
10. 2 ojololejololololojololejololejo Capa Oupa oupas Culpa THERMAL ACTUATORS BR965A16a These actuators are fitted to the underfloor heating manifolds and control the supply of water through the various loops The voltage of the thermal actuators 230V or 24V must correspond to the master Master type WLM 1BA and WLM 1FS are for 230 V thermal actuators and master type WLM 3BA and WLM 3FS are for 24V Thermal actuators Up to 8 different zones can be controlled by the master Connect the thermal actuators on the loop s for each zone to the corresponding terminals on the master Thermal actuators belonging to zone 1 must be connected to output terminal 1 and thermal actuators for zone 2 must be connected to output terminal 2 etc etc Guideline More than 1 head can be connected to a single terminal provided that the heads are to be controlled by the same room Room sensors Connect the Brown wire to the L terminal and the Blue wire to the N terminal When the installation is complete check that the Room sensor in e g room zone 1 operates the correct thermo actuator s for that room on the manifold If the heads appear to be in the wrong position on the manifold it may be simpler to change them on the manifold rather than reconnecting them on the master External Switch TIMER for night setback Fig 7 From factory the master is delivered with a jumper in the switch timer terminals amp O The day temperature setpoint is d
11. DIP 1 to deactivate Install mode Switch off DIP 2 to deactivate boiler test Set all temperature knobs to default positions Room sensors WLTA WLTD WLTM WLTP to zero center position Room controllers WLCT recommended to 21c Set all override switches on WLTM and WLID room sensors to automatic position clock symbol oe The system is now operating automatically Factorv Default Settings House temperature Night temperature Off temperature Floor Limit temp high Floor Limit temp low Weather compensation Outdoor temperature a Max water temperature Weather compensation Outdoor temperature ee S p 27 p 28 Error Indication During normal operation the green power LED will be ON when the master control is energised The red output Channel LED s 1 to 8 on the master and 9 to 14 on the add on module will indicate if the channel output relay is ON OFF An error fault message is shown by flashing the green power LED or one of the 8 red output Channel LED s From the number of flashes on any one LED the problem can be diagnosed and identified from the following The error number will be indicated by the number of flashes with a pause of less than a 1 2 second between the flashes The indication will be followed by a pause of 2 seconds following which the sequence will be repeated The failure code can also be seen in the service menu on WLM FS MASTERS submenu 2 Flashing Power LED green
12. a Turn onthe power supply 2 Set the clock on any WLCT room controller a If the hour digit is not flashing press the small pinhole button with the clock symbol otherwise b Adjust the hours and press OK c Adjust the minutes and press OK d Adjust the day number 1 Monday and press OK 3 In addition to its own room the WLCT room controller can be used to set the operating times and temperatures of other Room sensors channels To achieve this do the following on the WLCT room controller a Enter the InFo menu by pressing the up and down button simultaneously for 4 seconds b Find the ArEA menu with the down button and press OK c The display shows CH 1 channel 1 Press OK button Select On if this channel Room sensor should be controlled by the WLCT room controller or OFF if not Now press OK button to get to the next channel CH 2 and repeat this step until all required channels have been selected On d After all channels are set up find the ESC menu entry and press OK 1 Switch on DIP 3 to activate learn mode RESERVED DEHUM 2 All wireless Room sensors now have to be initialized EL Analogue Room sensor TA TD TM TP by pressing the internal COMMISSION MODE BE init button Button learning mode until a beep is heard LEARN MODE Sa Digital Room sensor CT by pressing the pin hole button with the OIE EST clock symbol until a beep
13. frost protection level of 5 C NIGHT SETBACK see also EXTERNAL SWITCH The external switch or timer function on the master module allows the whole system to be changed from the DAY Setpoint to the NIGHT Setpoint The external switch must have volt free contacts that are OPEN for NIGHT Setpoint and CLOSED for DAY Setpoint The factory fitted link wire is removed when a remote switch timer is used If aWLCT Room controller is employed in a part of the system the external switch action of going to NIGHT Setpoint will override the Room controller Emergency program for room control If a Room sensor controller is defective or if the communication to the unit is interrupted an alarm will be triggered Depending on the system configuration the regulation will continue in one of the following ways If there are several units on the same channel which have a room sensor which is still intact the regulation will continue as before however without contribution from the defective unit If no valid room sensor controller is found the system will run at constantly 20 ON If an outdoor sensor is connected the system will run 40 at 10 C and Below decreasing to 0 at 20 C and above The emergency program is only valid for channels with heat control Channels with cooling control will always run at 100 OFF in connection with a defective room sensor Emergency program for supply limit sensor lf the supply limit sensor is deffective th
14. is heard INSTALL MODE BR965A30b N LO T ip N ic O 3 Switch off DIP 3 to de activate learn mode Button learning mode TESTING THE SYSTEM Oo ARO NA Switch on DIP 3 to activate learn mode power light will blink quickly Each red channel light on the master should now be lit if a Room sensor is present on that Channel Switch off DIP 3 to de activate learn mode again power light stops blinking Turn all adjustable temperature settings on the Room sensors to minimum Switch on DIP 1 on the master to activate install mode Install mode will be active for 2 hours Pumps boiler mixing valve and actuators should now be off Turn the temperature setting on the adjustable Room sensor in room 1 to maximum The red channel 1 light should be lit and the actuator on output nr 1 will be activated and will open after 1 3 minutes depending on the type of actuator Important If the Room sensor is of a wireless type a delay of up to 5 minutes may occur before the channel light becomes illuminated Check that the UHF pump is running and the mixing valve only FS master opens Repeat step 6 on all rooms Boiler test function Switch on DIP 2 This closes the boiler start relay contacts for 1 minute 1 0 To end all tests Switch off DIP 1 to deactivate install mode Switch off DIP 2 to deactivate boiler test Set all temperature knobs to default positions Room sensors TA TD TM T
15. s 1 8 lighting in sequence This reset will remove from the system any room sensor unit with a defective input sensor or a defective AO module The fault message will be reset but the defective items will no longer participate in the system Once a defective unit is replaced the new unit will automatically be recognised by the master control and become part of the system To erase the identity of the defective component from the master memory a HARD RESET must be performed Hard resets do not alter the temperature settings already programmed into the master control FACTORY RESET If the button is pressed for more than 15 seconds a total factory reset will be initiated This is indicated through flashes of channel LEDs 1 3 5 and 7 alternating with channel LEDs 2 4 6 and 8 while the y button is pressed A factory reset will put all programmed temperature settings back to the factory defaults It will also remove all room sensors Controllers from the master memory and reset the system to accept only those room sensors Controllers that are functioning correctly DEFAULT SETTINGS amp SPECIAL FUNCTIONS The master control has the following default temperature settings For the master with display the setpoints can be altered on the display DAY SETPOINT 21 C NIGHT SETPOINT 18 C OFF FROST PROTECTION SETPOINT oC MAX LIMIT 27 C MIN LIMIT 17 C MAX SUPPLY WATER TEMP 55 C p 30 Each Room sensor with manual adjustment is capabl
16. to local regulations Configuring the Total System Each master module is capable of controlling 8 heating zones each of which may use one or more loops of piping with one or more thermal actuators S These zones are referred to later in this instruction as channels 1 to 8 If vou wish to control more D than 8 zones it is necessary to install ADD ON AO modules each of which can provide another 6 x outputs The first AO module then controls channels 9 to 14 CEC Green Power supply connected 5 Red Night setback active Q Red flashing Indicates error LO O X Main boiler primary pump is running if installed m CS Secondary UFH pump is running Boiler enable signal is activated 1 8 Zone 1 to 8 indicating heating is on INSTRUCTIONS Installation Fit the WLM master to a suitable wall It will generally be found more convenient if the unit is within 0 8 metre of the manifold as most thermal actuators are supplied with 1m cables Cables can be run on the surface into the terminals using either the cable releases in the cover or by pressing out the cable entries in the lower part of the cover Electrical Installation Fig 3 PLEASE ENSURE THAT ALL WIRING IS CARRIED OUT IN ACCORDANCE WITH LOCAL ELECTRICAL REGULATIONS When wiring is completed fit the cover on the master using the screws provided BR965A13a Mains supply WLM requires a 230V AC mains supply connected to the terminals marked L N amp
17. 00 shaendabsexdtecnbieserdeneas Page 24 Waterline ROOM sensors sssenennnnnnnn Page 42 2 step NGAUNG ixxi ua iii or Page 24 grigal fl ai e vies nn a e Page 42 Commissioning mode iii ka ti ib Page 25 SUP cc i di Page 43 Replacing equipment neennnnnnnn Page 25 Setting of Room Temperature 0 000 Page 44 Guidelines and special features Page 26 Setting of Room sensor Operating Mode Page 44 Factory default settings ceceee eee eens Page 27 Limit Sensor WLTD and WLCT 05 Page 45 Error indication essar Page 28 QUICKGUIDES p 3 QUICK INSTALLATION GUIDE WLM2 Master AO Module BR965A21a WLM2 Master AO Module AO Module Cable Channel 1 Manifol WLM2 Master WLRC 19 We recommend the preparation of an area schedule chart on the backside of the user manual before commencing the installation This identifies piping circuits to specific rooms and enables the correct allocation of a channel number in the WLM system Mount the Master and AO modules in the correct way on the wall in accordance with electrical regulations Connect the AO module using the special cable included in the box Mount the Room sensors controllers in the rooms and set the channel switches to correspond with the number of the actuator controlling that
18. BR965A18a SENSORS CONTROLLERS CONNECTED IN STAR SENSORS CONTROLLERS CONNECTED IN BUS MODE DAISY CHAIN MASTER MASTER SENSOR CONTROLLER BUS SENSORS CONTROLLERS CONNECT TO ANDLTO L Fig 1 O BR935A03A Fig 11 Room sensors Wireless setup BR939A17B Button learning mode Channel selector Fig 13 Button learning mode Where wireless Room sesors controllers WLTx 29 are being used is necessary for the WLM master to learn that the Room sensors controllers are communicating correctly To achieve this 1 On master switch on DIP 3 to activate learn mode 2 All wireless Room sensors controllers now have to be initialized Room sensors WLTA WLTD WLTM WLITP by pressing the internal init button Button learning mode until a beep is heard see fig 12 Room controllers WLCT by pressing the pin hole button with the clock symbol until a beep is heard see fig 13 3 Switch off DIP 3 to de activate learn mode p 20 Setting up Which Room sensor Should Work With Which Thermal Actuator Fig 10 BR939A01C Channel selector Each Room sensor can be selected to operate a specific output which in turn controls the thermal actuators on the manifold Under the front cover of the Room sensor a selector can be accessed and the number of its output its CH channel can be set with a screwdriver See fig 10 Up to 14 channels can be set on the selector and there are two auxiliary channels
19. Be Bd ji DR No No 1 2 L N LI Timer w volt free contacts Open contacts for night setback Thermoheads RESERVED DEHUM BR965A30b X RELAY COMMISSION MODE LEARN MODE BOILER TEST INSTALL MODE N LO lt O N s TA O ON Wiring diagram WLM2 BA Fuse OUTPUT C1 C2 SUPPLY BOILER Kouru tlie Volt free output for boiler control Main supplv Secondary 230V AC from Volt free pump 10 Amp fused X output 230V isolator Max 6A 2 wire low voltage bus between the sensor controllers Connect to and Lto L Thermostats can be wired as conventional Star or as Bus NB Remember the voltage of the Thermal actuators connected mode Daisy chain 230V or 24V must correspond to the master See instruction for further explanation THERMAL ACTUATORS Output 1 Output2 Output3 Output 4 Output 6 Output7 Output 8 c SUPPLV DISP SENSOR ololololelelejelejelelejelejeje eere aoeeoe jelelelelejaleja SENSOR SENSOR CONTROLLER Output 8 BUS THERMAL ACTUATORS g No No 1 2 LN Thermoheads L Timer DX wivolt free contacts Open contacts for night setback Outdoor compensation module lf fitted BR965A27A NETWORK BUS NETWORK BUS ADD ON MODULE WIRELESS RECEIVE Wiring diagram WLM2 AO a al PE Main supply 230V AC from 10 Amp fused isolator Secondary pump 230V Max 6A NB Remember the voltage of the Thermal actuators 230V or 24V must c
20. P to zero center position Room controllers CT recommended to 21 C Set all override switches on TM and TD Room sensors to automatic position clock symbol 11 The system is now operating automatically NB Other important settings can be found in the User manual on the pages shown bellow Off temperature frost protection page 7 Minimum amp Maximum floor temperatures page 7 Maximum supply water temperature page 8 Weather compensation page 8 p 7 TROUBLESHOOTING Problem Channel light is not coming on When in Learn mode When in Install mode when the Room sensor is activated set to maximum The actuator on the manifold has not opened after 3 minutes UFH Pump not starting in install mode Possible cause amp solution Make sure the power light is fast blinking If not then put DIP 3 to ON position 2 wire bus may be incorrectly connected Voltage at each Room sensor should not be lower than 4 0V check for amp continuity and short circuits For wireless Room sensors please check that the batteries have been inserted correctly Has the init button been pressed For wireless Room sensor check that the WLRC 19 receiver is correctly connected For channel 9 14 is the AO module correctly connected to the Master Make sure the Room sensor in that room is set to the correct channel number The channel selector on the Room sensor may be slightly out of position try rotating and the set i
21. aces real wood are used The sensor should be positioned where it can read the true temperature of the floor and should alwavs be within the heated area Min temperature limitation is used to keep a floor surface warm irrespective of room temperature For example water on tiled bathrooms or pool areas with drv more quickiv if the floor surface is kept warm The sensor should be positioned where it can read the true temperature of the floor and should alwavs be within the heated area For easv replacement we recommend that all floor sensors are mounted in a tube which is placed between 2 heating pipes The inner end of the tube should be sealed and the sensor cable brought back to the wall edge If required the sensor cable can be extended up to 50 m with a standard installation cable WLTM Use of external room sensor A remote room sensor can be used instead of the built in sensor bv connecting the jumper across the two pin bridge on the printed circuit board under the Room sensor cover From factory the jumper is parked on one pin Location of jumper see fig 3 Technical Data Wireless Supply Voltage Batteries 2 x AAA Alkaline 1 5 V Distance to master Max 30 m PNnClOsSuiles dec ene See Sees ees ceed IP 21 Ambient temperature range O to 40 C 868 MHz Up to 30 m inside Up to 100 m outside Communication frequency Communication distance Batteries Wireless The Room sensors u
22. and to Interconnection of WLM2 products p 32 For easy installation interconnections between master modules master and add on modules and master and wireless receivers are made by pre wired plug in connectors RJ45 For connecting WLM2 add on modules to WLM2 masters a plug in connector is provided with the add on module A WLRC wireless receiver is also connected to a WLM2 master using the plug in connector provided with the receiver For connecting a WLM2 master to another master a plug in connector kit is available INSTRUCTIONS Waterline Wireless System Product Programme Technical Data WLRC 19 Receiver Supply Voltage 24 V from Master Distance to master vt ritwiz onzznate Max 3 m Enclosure auaa IP 21 Ambient temperature range O to 40 C Communication Frequency 868 MHz Communication distance Up to 30 m inside G0 Sede ESH OE eee E Up to 100 m outside Connection of Master and Receiver WLM2 Master Blue Red Brown Yellow The receiver is connected to the master or the add on module using the included cable WLRC 19 O i Max distance between the master add on module and receiver is 3 m Up to 5 receivers can be connected The wiring of the master add on module and receiver can be made in either a daisv chain or in parallel ogg O Do not place the receiver inside a metal box In case of communicatio
23. and from Room sensors Master is in cooling mode Incorrect connection see master wiring diagram for correct connection Valve actuator assembly is incorrect Actuator is faulty Check what happens if sensor and or outdoor module is missing Valve may be oversized Supply Limit sensor may be subject to heat migration Upstream water temperature is excessively high these problems may be corrected by changing PI settings please refer to the main manual p 9 Room is too cold After running for at least 48 hours Room is too hot After running for at least 48 hours The Room sensor is placed in a position that does not represent the general temperature in the room E g mounted on external wall or near an extraneous heat source If the room is controlled bv a CT Room sensor check that the time and temperatures are set correctly If the Room sensor has got an override switch TM or TD the switch may be set in the off or night position For rooms with floor sensors the maximum floor limit setting could be preventing the room reaching the desired temperature Insufficient heating capacity of the system Bad insulation creating large heat loss This could be caused by draughts within the wall cavities The Room sensor is placed in a position that does not represent the general temperature in the room If the room is controlled by a CT Room sensor check that the time and temperatures are set correc
24. atures For example wooden floor constructions which should not be allowed to exceed a maximum of 27 C The value can be set from 5 C up to 55 C The value can also be set to OFF adjust the temperature to 55 C and push button up once more Low limitation is used where the temperature of the floor is required never to fall below the minimum set temperature Example in kitchens or bathrooms with tiles The value can be set from 5 C up to 55 C The value can also be set to OFF adjust the temperature to 5 C and push button down once more Remember the max limit temperature must be set higher than the min limit temperature The limit temperatures defined in the room controller will be valid for all the room sensors with limit sensor type WLTD 19 which are part of the area allocated to the WLCT unit The maximum allowable floor temperature setting is shown Use the UP A or DOWN V button to increase or reduce and OK V button to accept The display will now show Loli Press OK V button to continue The minimum allowable floor temperature setting Use the UP A or DOWN V button to increase or reduce and OK V button to accept You can select either C or F scale and 12 or 24 hour clock as follows Press UP A or DOWN V button to change settings Confirm the required scale with the OK button V button Adaptive function This function enables the thermostat to calculate when it needs to switch ON so that the re
25. d Special Features POWER UP RECOMMENDATIONS When all connections are complete we recommend to use the quick guide setting up svstem Svstem check Correct operation of the system can be checked using a special Install Mode This enables the installer to individually test and prove each output Testing the system 1 Switch on DIP 3 to activate learn mode power light will blink quickly 2 Each red channel light on the master should now be lit if a sensor controller is present on that channel 3 Switch off DIP 3 to de activate learn mode again power light stops blinking 4 Turn all adjustable temperature settings on the sensor controller to minimum 5 Switch on DIP 1 on the master to activate install mode Install mode will be active for 2 hours Pumps boiler mixing valve and actuators should now be off 6 Turn the temperature setting on the adjustable sensor controller in room 1 to maximum The red channel 1 light should be lit and the actuator on output nr 1 will be activated and will open after 1 3 minutes depending on the type of actuator Important If the sensor controller is of a wireless type a delay of up to 5 minutes may occur before the channel light becomes illuminated Check that the UHF pump is running and the mixing valve only FS master opens Repeat step 2 on all rooms Boiler test function Switch on DIP 2 This closes the boiler start relay contacts for 1 minute 10 To end all tests Switch off
26. e 15 Waterline Wireless System Page 33 Boiler demand enennenenznnnenzenennnna Page 15 Product Programme E ccd A e hoe Lee A Page 33 Pump OULDUE ai iedecaccchdaeddwesecdeatedccwsaauanas Page 16 Connection of Master and Receiver Page 33 Free relay function X DUTPUT i s s s Page 16 POSION kasba iniedi Page 33 Thermal actuators j 0icctaponatva sienna inpejzbi nie Page 17 META sci EEA A NT Page 33 External switch for night setback Page 18 To set up the system ccccecesecseeeeeeeees Page 33 Room sensors Bus connection Page 18 Room sensors Wireless setup 0000 Page 19 Type WLCT cccceesceeeeeeeeneeeeeneenes Page 34 Setting up which Room sensor controller ROOUCHOM icscacnccmecerka e Page 34 should work with wich thermal actuator Page 20 Getting started ns cnnaunsicracscoanmenttonemeerenanens Page 34 Supply water temperature sensor Daily Use of the room SeNnSOl e0eeeeeee Page 36 and MIXING VANS 3 xx active cored anda ae kima d die Page 21 Programming 4 Event Clock Time and Temperature ssssee en enennnnnna Page 37 Creating a Network ssssnnnnanzannnnnz Page 22 Advanced Settings and Read out Page 38 Using cooling function misinreszsjnzesiissenzzzonjona Page 23 Reset to factory Settings room controllers Page 41 Domestic hot water control s eee Page 23 Radiator CONU Olas lt nd lt 0n
27. e energised after a delay of 10 sec after the start of the main pump Basic versions without display Type WLM2 1BA and WLM2 3BA The boiler relay will stop if there is no heat demand measured by the Room sensors Versions with display Type WLM2 1FS and WLM2 3FS These units have supply water temperature control and the boiler relay will be ON once the control valve has reached 20 open and will remain on as long as a heat demand exists The master has an output for the underfloor circulating pump secondary pump The output will be energised after a 180 sec delay when any connected room sensor calls for heat The delay is to allow time for the thermal actuator to start opening The 230v AC pump can be connected directly to terminals L and N under the heading Sec UFH Pump Connect the pump E Earth terminal to E earth on the master The maximum pump load must not exceed 4 amps 230v at start up There is an overrun period of 1 minute after the demand for heat from the room sensor disappears Delay times Secondary UHF pump 180 sec X output configured as main pump 190 sec Fig 8a SEC OUTPUT UFH PUMP L ce Volt free output for boiler control Secondary Volt free pump X output 230V Max 6A BR965A15b All WLM master have a relay which can be utilized for a number of different purposes To control p Boiler pump The relay is a volt free output and is positioned on the PCB as shown on the drawing
28. e hot water take off pipe immediately above the storage A cylinder Use the fixing strap to mount it tight to the surface ma The WLCT HW must be fixed in convenient position for the user H ser Ta uror e Connect the hot water controller WLCT2 HW to the WLM2 master using the sensor controller bus REMOTE SENSOR FOR HOT WATER p 23 ae e Connect the hot water sensor to the controllers sensor terminals e Connect the hot water zone valve to an output on the WLM master and set the channel number on the hot water controller to the corresponding number Note When the WLCT HW calls for heat it does not start the circulation pump on the under floor heating system Radiator control It is possible to control a radiator circuit room temperature with a special Room controller WLCT R to ensure optimum energy saving The Room controller measures the temperature in the room and a zone valve is then controlled via the WLM master which in turn activates the boiler on demand e The WLCT R must be fixed in a convenient position for the user but which is representative of the room or area temperature Connect the Room controller to the WLM master using the sensor controller bus Connect the radiator zone valve to an output on the WLM master and set the channel number on the Room controller to the corresponding number Note When the WLCT R calls for heat it does not start the circulation pump on the under floor heating system 2 step heating
29. e of increasing or decreasing the preset DAY amp NIGHT setpoints on the master by 4C for the heating zone which it is controlling The Room controller WLCT has its own DAY amp NIGHT temperature settings that can be set separately and if manual Room sensors are attached to its group these will operate to the same settings as the WLCT but still with the possibility of local 4 C adjustment CHANNEL 15 OPERATION It is possible to override all the automatic functions of the master control and the Room controllers with a single function This action is used for holiday periods e g to set the whole system under a frost protection mode or to temporarily override all the temperature control of the system It is achieved by using the any WLTM Room sensor as this has the override selector If the cover is removed and the channel selector is set to F channel 15 that Room sensor will cease to operate its own output channel but will instead operate all the output channels of the system Using the WLTM Room sensor the slide selector on the right side can be used for as follows Auto will allow the whole system to operate to the automatic settings DAY will keep the whole system working to the DAY Setpoint but only for those Room sensors that are set for auto NIGHT will keep the whole system working to the NIGHT Setpoint but only for those Room sensors that are set for either auto or day OFF will turn the whole system OFF but still under a
30. e system will run at constantly 20 on for the valve If an outdoor sensor is connected the system will run 40 at 10 C and Below decreasing to 0 at 20 C and above Exercise of valves If no automatic on off sequence of valves or pumps occurs over a 72 hour period an exercise of these components will take place The actuators will be activated for 3 minutes The pumps will be started for 10 secs during that period and the mixing valve if fitted will be opened and closed INSTRUCTIONS Add On Module Configuring the Total System WLM2 Master AO Module AO Module Cable p 31 Each master module is capable of controlling 8 heating zones each of which may use one or more loops of piping with one or more thermal actuators These zones are referred to as channels 1 to 8 If you wish to control more than 8 zones it is necessary to install an ADD ON AO modules each of which can provide another 6 outputs The first AO module then controls channels 9 to 14 Connection of master and add on module Connect the AO module using the special cable included in the box Mains supply from 230V fused isolator INSTRUCTIONS Outdoor Compensation Module Type WLOC 19 Introduction Mounting x jk BR939A09A The masters WLM2 1FS and WLM2 3FS are supplied already prepared for weather compensation and simply by adding the outdoor compensation module on the 2 wire bus and using the water temperature s
31. efaulted to 20 C and the night temperature to 15 C These default settings can be changed if the master has a display The current operating set point of the master can be changed from the day temperature into night temperature and vice versa by using an input from an external switch or timer The input must be a volt free switch and will need to open circuit for night temperature and close circuit for day temperature When the external switch or timer is used to switch to night setback this will override any time settings in a WLCT Room controller including any Room sensors that are part of a group allocated to that Room controller BR965A17a Timer w volt free contacts Open contacts for night setback Room sensors Bus Connection Only OJ Room sensors type WLxx that are prepared for 2 wire communication can be used Standard installation cable maximum 2 x 0 25 mm can be used The Room sensors can be connected in the conventional star wiring format or in a bus connected mode Daisy chain see fig 10 fig 11 The master has 4 sets of terminals marked Room sensor BUS that can be used for connecting the 2 wire signal from the Room sensors There are 4 identical sets of terminals for convenient installation Any Room sensor can be connected to any pair of terminals The total length of the 2 wire system can be up to 300 m with a maximum length of 100mbetween any 2 Room sensors Remember to connect to and to ae BUS
32. ensor on the supply water side you have a control system for weather compensation Preset values are programmed at the factory but these values can easily be adjusted according to local needs via the display on the master See the user manual Master with display type WLM for changing of the default factory settings The outdoor compensation module is mounted under the roof eaves alternative 2 3 m above ground level Direct sunlight or any other direct heating source such as air ventilation must be avoided The outdoor compensation module is mounted vertically with the cable entry downwards BUS CONNECTION Outdoor Compensation Module WLOC BR965A22a Only OJ Outdoor Compensation Modules type WLOC 19 that are prepared for 2 wire communication can be used Standard installation cable minimum 2 x0 25 mm2 can be used The outdoor compensation module can be connected in the conventional star wiring format or in a bus connected mode Daisy chain The master has 4 sets of terminals marked Room sensor BUS that can be used for connecting the 2 wire signal from the Room sensors and the outdoor compensation module There are 4 identical sets of terminals for convenient installation Any Room sensor outdoor compensation module can be connected to any pair of terminals The total length of the 2 wire system can be up to 300 m with a maximum length of 100 m between any 2 Room sensors outdoor compensation module Remember to connect to
33. ent dee cetera Volt free signal Max 4A Main pump free relay missierek nce ik e i Volt free signal Max 4A OG NI je l reene 230V AC 50Hz Max 4A Thermal actuators WEM2 TBA ee een e ee ROE eee Tere eet eer eer nee eee ee ee eee 8 x 230V WEM2 A eect care ga ect eee eiateneg a 8 x 230V Max 2A per output Max 5A in total WEM2 39BA anon ae er eet One a eel eee eee ree ee eel eee ee aera a ere 8 x 24V cat Poe S ee ne ne ee ee ere ne eee ee ee ee ee Cee eee en eee ee ae 8 x 24V Max 10VA per output Max 35VA in total Optional External Switch Timer for night setback seen nnennen Open terminals for NSB Closed terminals for day operation Room sensor Bus 2 wire low voltage Lee bus signal from Room sensors Additional data for WLM2 1FS amp WLM2 3FS not applicable to the basic version Application sensor and Limit SENSOF ccsseceeeeeeeees NTC type ETF 1899A for water temperature Control signal for mixing valve actuator cadensstaeasicacdecsbeesentdmedesnascusais rael 0 10V DC Power supply for mixing valve actuator s sssessssssrrnsrsrrrrresrrrrrrnrnrrerernrrnsnrntneennnne 24V AC Max 6VA Environment Please help us to protect the environment by disposing of the packaging in accordance with the national regulations for waste processing Recycling of obsolete appliances Appliances with this label must not be disposed off with the general waste They must be collected separately and disposed off according
34. et the clock and day and define the room sensors rooms that should belong to the area The room controller has a pin button marked R see fig 1 allowing you at any time to reset the room controller to the factory settings These are listed at the end of this manual with space for you to record your own weekly schedule Getting Started Buttons Adjustment down BR939B01A Adjustment Reset to Pin button up factory adjust of setting clock p 34 Time and temperature Day number 4 event symbol Xt Wake TY Out C Night f4 Home Setting the room controller into operation First time power is connected the clock and day will be flashing and must be set If you need to adjust the time of the thermostat at a later date insert a pin into the hole marked see fig 1 for setting of time and day Adjustment should be made for change in summer and winter time Press the UP A or DOWN V buttons to select the correct hours and press OK button vV Press the UP A or DOWN V buttons to select the correct minutes and press OK button V Then press the UP A or DOWN V button to select the correct day and press OK V button AREA SETUP see page 40 p 35 Daily Use of the room sensor 4 Event Clock Mode 4 event clock mode automatic mode Comfort mode e NV X 5 secs Manual mode p 36 The day has been split into 4 events describing a typical day When the room senso
35. gs which are used by all non Room sensors that are connected to the system In Master WLM2 1BA amp WLM2 3BA the DAY temperature setting is fixed at 21 C and the NIGHT temperature is fixed at 15 C In Master WLM2 1FS 8 WLM2 3FS the DAY NIGHT and OFF default temperatures are adjustable through the display Automatic switching between DAY and NIGHT temperatures is done by either connecting a separate timing device to the master or using a WLCT Room controller and allocating other Room sensors as part of its group It is possible to have two or more Room controllers in the system with each one having its own group of non Room controllers Setting of Room sensor Operating Mode Fig 3 Room sensors type WLTM 19 29 and WLTD 19 29 have a slide switch see fig 4 for selecting the mode of operation of the controller Four different modes can be selected Auto Dav Night and OFF Auto The controller will follow the temperature settings of the master or if the Room sensors belongs to a zone group using a WLCT Room controller it will follow the automatic sequence of temperatures and timings set in the WLCT BR939A08B Slide Day It will control the room temperature according to the DAY setting defined in the master switch typically 21 C Night It will control the room temperature according to the NIGHT setting defined in the master typically 17 C Adjustment knob OFF It will control the room temperature accordi
36. he humidity sensor WLH the system limits the formation of condensation on floor surfaces due to high humidity e The WLH must be fixed in a room that represents the general humidity level in the building and connected to the sensor controller bus more than one WLH can be used if necessary e g on separate floors of the building Where more than one humidity sensor is used the master will take the reading of the sensor detecting the highest humidity level for the controlling action e lf a dehumidifier is being used it can be connected via a relay using number 1 output on the master and setting DIP 7 to on Note This output gives either 24Vac or 230Vac depending on the WLM2 master type Channel number 1 cannot be used for Room controller control in this situation e When cooling is enabled the cooling set point will be pre determined by the master and will override any settings in any Room controller to ensure optimum energy efficiency The cooling set point will be 3C above the master day set point Domestic hot water control It is possible to control the domestic hot water temperature with a special Room controller WLCT HW to ensure optimum energy saving A hot water sensor is connected to the Room controller and measures the temperature in the storage cylinder A zone valve is then controlled via the WLM2 master which in turn activates the boiler on demand BUS L BR965A32a e Install the hot water senser ETF on th
37. is displayed Continue pressing the UP A button until you reach one of the desired sub menus PRO Hi Li Scal and ArEA For explanations see below Select the sub menu with the OK v button INFO Information The values of the actual measured room temperature and the floor temperature can be seen The floor temperature is only shown if a floor sensor is installed Press UP A or DOWN V button to show the different Software version a j i readouts Room temperature gt eat Floor temperature _ gt No changes can be made here Use the OK v button to end PRO 4 event sequence It is possible to change the factory event sequence of Days 1 5 4 event and days 6 amp 7 2 event Days 1 to 5 are usually Monday to Friday whilst days 6 amp 7 are usually Saturday amp Sunday An EVENT is either an ON or an OFF operation You can select from the following sequences which are displayed in the form of a code 4 events 5 days 2 events 2 days indicated by Code 4 52 4 events 6 days 2 events 1 days indicated by Code 4 61 4 events 7 days indicated by Code 4 70 2 events 7 days indicated by Code 2 70 2 events 5 days 2 event 2 days indicated by Code 2 52 Select the required sequence with the OK v button Hi Li Floor sensor Max and min allowed temperature of the floor surface A limit sensor can be connected to the room controller Max limitation is used for safety to prevent high floor temper
38. n problems it mav be necessarv to move the location of the receiver or to add an additional receiver Connect the receiver to the master and the svstem will reconfigure itself for wireless operation To set up the svstem See Quickguide p 33 INSTRUCTIONS Type WLCT Introduction The room controller type WLCT is part of the underfloor heating system type WLM The room controller can be set to control one single room or it can be set as a master to control a group of room sensors rooms zones Here after referred to as area All the room sensors that are part of that area will follow the times and temperatures programmed into the room controller For example if the temperature programmed in the room controller is 22 C all the room sensors rooms belonging to that area will then also be controlled at 22 C Depending on the types of room sensors used you can adjust the temperature or 4 C in different rooms giving a possible room setpoint of 18 to 26 C The room controller can be programmed to work at different temperatures during the day allowing lower temperatures during times that the room is unoccupied Lower temperatures will lower your energy costs without reducing the comfort All room sensors that are part of the area will follow any new time or temperatures programmed in the room controller When it leaves the factory the room controller has a preset program suitable for most installations You only need to s
39. nal Supply limit sensor type ETF 1899A is defective The fault is corrected by changing the temperature sensor If the sensor has been removed deliberately to change the operation of the system follow the HARD RESET instruction below Internal overheating The master has its own internal safety temperature protection system The problem is corrected by improving the ventilation around the master module Defective internal overheat sensor The Master will control as normal however the protection against internal over heating is no longer active The fault can only be corrected by replacing the master module The communication to the AO module has been lost The fault is corrected by re establishing the connection to the AO module or by changing the AO module if it is defective or if it has been deliberately removed with a HARD RESET Indicates total number of input units exceeded Please refer to factory or your local service engineer No connection to wireless receiver type WLRC 19 Step 2 on 2 step controller WLCT X9 2 is used by another room sensor controller Only one error fault condition can be shown at a time If more than one error occurs they will be prioritised in the shown sequence E1 2 3 p 29 Flashing output LED red The appropriate output channel LED can flash indicating that the room sensor or room contoller on that channel has a fault error The failure code can also be seen in the service menu Submenu 2a
40. ng to the OFF setting defined in the master typically 5 C This setting is intended to be a frost protection mode and is used if the room is to be left unoccupied for long periods WLTM 19 29 amp WLTD 19 29 are recommended for guest rooms and other infrequently used rooms as they allow simple override of the automatic timing sequence p 44 Limit Sensor WLTD and WLCT LIMIT SENSOR MAX 50m Jumper mounted max limitation Jumper removed min limitation Button learning mode Channel selector p 45 BR939A17B Room sensors controllers with a limit sensor have a mechanical jumper on the printed circuit board allowing the limitation to be set for MIN or MAX temperature control If set for MAX it will have a temperature setting of 27 C Set for MIN it has a setting of 17 C These temperature are fixed when used with masters WLM 1BA or WLM 3BA unless the Room sensor has been allocated to a zone group controlled by a WLCT Room controller In this case the limit settings can be increased or decreased bv accessing the Room controller The limits then set will applv to all relevant Room sensors with limit sensors belonging to that group If the master WLM 1FS or WLM 3FS is used the limit settings can be changed through the programming buttons on the master Mounting of limitation sensor Max temperature limitation is used to protect the floor area from becoming too warm This mav be required if special floor surf
41. o set the Room sensors into learning mode Standard Room sensors without display Remove the front cover and push the little leaning mode button for approx 2 sec until the Room sensor give a little bib Room controller with display Press the clock symbol for 2 sec until it says init The Room sensors will now transmit its unique code in the next 30 seconds and the system has been set up To set up the system for the Master to receive signals from the Room sensors Wireless only To set the master into learning mode set DIP X to on The master will now look for new Room sensors that also are in learning mode Remember to set DIP X back to off RF LEARNINGMODE will be shown in the masters with display Setting of Room Temperature If the WLTM 19 or WLTD 19 Room sensor has been allocated to a WLCT controlled area then when AUTOMATIC mode has been chosen with the built in slide switch the temperature settings will be as programmed in the WLCT Room controller and not in the master but the same local 4 C adjustment is available On the Master WLM2 1FS and WLM2 3FS if the temperature setting is changed then the default temperature for all the rooms is changed but each WLTA WLTM or WLTD Room sensor is locally adjustable with its own adjustment knob With this knob the temperature setting from the Master can be increased or decreased by 4 C for that specific room The master is supplied with default temperature settin
42. oders again should be set in sequence from 1 to 9 This numbering can be continued for up to 15 strings All masters are interconnected using special cable via the RJ45 socket 1 or 2 The last master of the first string must be connected to the first master of the second string etc etc An FS master can be used as the network controlling master for central mixing control of supply water and boiler switching Switching between cooling and heating can be done for the whole network on the network controlling master using the WLAC 1 interface module connected to the thermostat bus Using cooling functions In addition to controlling heating all WLM2 masters have the ability to control the system for cooling e To enable the cooling function an interface module WLAC and humidity sensor WLH have to be connected e On BA masters it is also necessary to install a sensor ETF 1899 on the return water pipework from the floor for dewpoint control e The WLAC must be fixed in a convenient position for the user and connected to the sensor controller bus as shown in the picture pic e lIfa BMS system in being used for the heating cooling decision the volt free BMS signal should be connected to WLAC but the slider switch on the right side of the WLAC must be set to the heating position in this situation the BMS signal has priority and we recommend that the slider toggle be removed to avoid incorrect overriding e By using t
43. orrespond to the master THERMAL ACTUATORS THERMAL ACTUATORS Thermoheads 2 wire low voltage bus between the sensor controllers Connect to and Lto L Thermostats can be wired as conventional Star or as Bus connected mode Daisy chain See instruction for further explanation SENSOR CONTROLLER 51 52 53 54 21 22 23 24 SENSOR CONTROLLER Outdoor compensation module If fitted BR965A28a MASTER MODULE WIRELESS RECEIVE Description Product Programme Technical Data Type WLM underfloor heating controller is suitable for connecting multiple room Room sensors and electric actuators thermoheads for an underfloor or radiator based heating system Room sensors requiring a 230 V or 24V live amp neutral must NOT be connected Only OJ Room sensors type WLxx that are prepared for 2 wire or wireless communication can be used Product Thermo Heads Type Master for 8 zones 230V AC WLM2 1BA basic system Master for 8 zones with display 230V AC WLM2 1FS full system Master for 8 zones 24V WLM2 3BA basic system Master for 8 zones with display 24V WLM2 3FS full system Add on module for 6 zones 230V AC WLM2 1AO Add on module for 6 zones 24V WLM2 3AO TECHNICAL DATA Power Supply ie id i a eer nee eer rn tre 230V AC 10 15 50 HZ Max load pumps and Thermal actuators asissivinjaboiijaria te ikekiznzkkonnanaj kai bii ig Bena ikbba za tabdanajiiini inkirttt j 10A Boiler relay sipini erea en areeee tee acc
44. quired temperature is reached at the set time With a start time of 07 00 therefore the thermostat may switch ON as early as 06 00 so that the desired temperature of 25 C is achieved by 07 00 Without this function set the thermostat will start to heat at the time you set Press the DOWN V button to switch between on and off Press OK V button to confirm p 39 p 40 ArEA Group of rooms The rooms that are to be set as part of the WLCT area will follow the temperature settings of the room controller example an area could be the living room kitchen and children s rooms having a high room temperature during afternoon and ear evening and a lower temperature during the early part of the day and at night Each room sensor will have a channel number designated CH1 CH2 etc The appropriate channel number of any room sensor is determined by the numbered output on the master control which is actually switching the valve actuator for that area For example a system may have the kitchen room sensor operating master output 4 and the childrens room sensor operating master output 5 If the WLCT room controller is then situated in the living room and operating output 1 then the WLCT need be programmed to control outputs 1 4 amp 5 Each room sensor will have been set to operate its appropriate output ch see separate instructions To do this enter the ArEA sub menu and press OK V button CH 1 will be displayed use
45. r is in this 4 event mode it will change the temperature to the required level automatically at the programmed times As standard the room sensor has 5 days with 4 events two ON s and two OFF s and 2 days with 2 events one ON and one OFF For programming see page 17 Please see page 18 PRO 4 event sequence to alter the daily event sequence In automatic mode the clock function symbol and one of the 4 event symbols if A A C will be indicated Programming page 17 Temporary override To temporarily override any temperature in the 4 event schedule program press the UP A button once to show the temperature in the display and press UP A or DOWN V again to increase or decrease the temperature The display will flash for 5 seconds and will then revert to the time The override will operate until the next programmed event when the thermostat will resume the automatic programme Cancel comfort mode temporary override To cancel the temporary override press the OK V button twice Permanent override During holidays the scheduled 4 event program can be overridden Press the OK V button and then the UP A or DOWN V button until the override temperature is set The set temperature will remain in the display and the unit will now operate to this temperature permanently Cancel manual mode To cancel the permanent override state press the OK v button once and the unit will resume automatic function
46. room For hardwired Room sensors controllers now connect the 2 wire bus to the master or the AO module maintaining continuity of positive and negative connections For wireless Room sensors controllers now insert the batteries NB For Room sensors with floor temperature limiting sensors please refer to separate instructions included with Room sensors controllers If the Room sensors controllers are of wireless type connect the receiver WLRC 19 using the special cable enclosed with the receiver Bae EE Red Brown Yellow p 4 WLM2 Master Thermal Actuators 4 5 6 7 Manifold FLOW DIAGRAM WLM2 Master Power supplv Connect the actuators to the channel outputs on the master in accordance with the pipe manifold layout please refer to the area schedule Actuator no 1 on the manifold to output no 1 on the master Actuator no 2 on the manifold to output no 2 on the master cic Outdoor module WLOC 19 FS Master only Install on north facing wall away from direct sunlight Connect into 2 wire Room sensor bus or direct to master maintaining continuity of positive and negative connections Connect 230 240Vac power UFH circulating pump and boiler in accordance with electrical regulations For FS masters connect the mixing valve and water flow temperature sensors SETTING UP THE SYSTEM 1
47. se 2 x AAA batteries type Alkaline A lifetime of 1 2 years is expected The Room sensors are equipped with a low battery alarm giving a little bip each 5 minutes in case of low battery If a Room sensor is defective or if the communication to the unit is interrupted an alarm will be triggered on the master and the room will be heated at constantly 20 as safety The alarm can be overruled in the next 24 hours On the Room controller press the clock symbol for 2 sec On the other Room sensors remove the front cover and press the little learning mode button for 2 seconds 59 6 4 amp 4 OJ ELECTRONICS A S STENAGER 13B DK 6400 SONDERBORG DENMARK T 45 73 12 13 14 F 45 73 12 13 13 OjJ OJ DK WWW OJ DK OJ ELECTRONICS UK CRUSADER PARK WARMINSTER WILTSHIRE BA12 8SP UNITED KINGDOM T 44 01985 213 003 F 44 01985 213 310 SALES OJUK CO UK WWW OJUK CO UK ON OJ ELECTRONICS taking comfort further
48. t DIP 4 to on This will set the supply water temperature at 23c for three days and will fully open all the manifold actuators Then for a further four days the water will be supplied at the maximum supply water temperature as set in the WLM master menu and during this period the manifold actuators will remain fully open When the WLM master is operating the commissioning function this is indicated by the output LED s flashing in rotation and with the word commissioning flashing in the display The commissioning function time periods are paused if the power supply is interrupted Should you need to restart the commissioning from the beginning switch DIP 4 to OFF and back to ON To de activate the function switch DIP 4 to OFF Note This function conforms to BS EN 1264 part 4 Replacing a faulty sensor controller OnRwWN 4 Identify the sensor controller to be changed by the blinking output LED Switch OFF power to the master Change the sensor controller Switch ON power to the master Set the master into learnmode and set DIP 3 to ON On wireless sensor controller now press the button on the sensor controller On hardwired sensor controller go to step 7 7 Check that the corresponding output LED has changed from blinking to permanently ON 8 Reset the DIP 3 to OFF For any other changes in the system use the quick guide and start the install sequence from the beginning p 26 Guidelines an
49. t again Master is not in install mode after 2 hours the master automatically de activates install mode please reset the DIP 1 Make sure the Room sensor in that room is set to the correct channel number two Room sensors could be crossed over Check the red channel light is illuminated The actuator for the room is not connected to the correct output on the master Bad electrical connection between actuator and terminals Actuator may be faulty or manually locked Bad electrical connection between pump and terminals Install mode is not activated Pump may be faulty p 8 Output relay for Main pump Cooling High limit valve or other attached device Boiler does not fire LED lit LED not lit Mixing valve does not operate correctiv When in install mode Valve cvcles between open and closed in normal operating mode Incorrect connection to device output relav has volt free contacts see master wiring diagram for correct connection Bad electrical connection between terminals and attached device Install mode is not activated Attached device may be faulty Incorrect connection to device output relay has volt free contacts see master wiring diagram for correct connection Bad electrical connection between terminals and attached device Install mode is not activated Attached device may be faulty Timing sequence delay is activated FS master only mixing valve not open above 20 No heat dem
50. t and mode switch Auto Day Night OFF WLTD 19 29 Room sensor with adjustment mode switch Auto Day Night OFF and limit sensor WLCT2 19 29 Room controller with 4 event clock Mounting of Room sensor fig 2 The Room sensor is used for comfort temperature control in rooms The Room sensor is mounted on an internal wall with free air circulation about 1 6 m above the floor Draught direct sunlight or any other direct heating source must be avoided Wired Room sensors Only OJ Room sensors type WLxx that are suitable for 2 wire communication can be used Standard installation cable minimum 2 x 0 25 mm2 can be used The Room sensors can be connected in the conventional star wiring format or in a bus connected mode Daisy chain The master has 3 sets of terminals marked Room sensor BUS that can be used for connecting the 2 wire signal from the Room sensors There are 3 identical sets of terminals for convenient installation Any Room sensor can be connected to any pair of terminals The total length of the 2 wire system can be up to 300 m with a maximum length of 100 m between any 2 Room sensors Remember to connect to and to Wireless Room sensors Insert batteries BR939A17B Button learning mode Channel selector Button learning mode p 43 Setting up which Room sensor should work with which thermal actuator Each Room sensor can be selected to operate a specific output which in turn controls the thermal actua
51. the OK v button and then the UP A button to change the setting to ON Press OK V and CH 2 is displayed Use the UP A button until CH4 is displayed press OK V and change to ON Repeat this for CH 5 All three room sensors will now operate under the control of the WLCT room controller In total up to 14 Channels can be programmed in this way and it is possible to have more than a single room controller each own sub room sensors operating to its schedule and temperatures Set the Channels Rooms Ch to ON if they should follow the settings of this clock thermostat In total 14 channels rooms can be controlled ESC Escape Press OK v button to end programming and to return to scheduled programme Reset to fatctory Settings room controllers Factory reset J Press the pin button R for 3 secs and the thermostat returns to factory settings R Remember to set time day and area Factory settings 4 event time and temperature onines mer ponsa ez f temperature aa ie temperature p 41 INSTRUCTIONS Waterline Room sensors p 42 Introduction Fig 1 Fig 2 To remove front Ba BR939A04B 1 6m BR939A05A MASTER Room sensors connected in star MASTER Room sensors connected in chain Daisy Chain Product programme WLTP 19 29 Room sensor tamper proof WLTA 19 29 Room sensor with adjustment WLTM 19 29 Room sensor with adjustmen
52. tly If the Room sensor has got an override switch TM or TD the switch may be set in the day position For rooms with floor sensors the minimum floor limit setting could be increasing the room temperature above the desired setting Solar gain or extraneous heat source INSTRUCTIONS WLM Underfloor Heating Controller Wiring diagram WLM2 FS Fuse OUTPUT SUPPLY BOILER M Volt free output for boiler control Main supply Secondary 230V AC from Volt free pump 10 Amp fused X output 230V isolator Max 6A oO 2 wire low voltage bus AT L between the sensor controllers LO Connect to and Lto L Thermostats can be wired as ag x conventional Star or as Bus a NB Remember the voltage of the Thermal actuators 2 connected mode Daisy chain 230V or 24V must correspond to the master ul See instruction for further NETWORK BUS explanation THERMAL ACTUATORS Output 1 Output2 f Output3 Output4 Output5 Output6 Output7 Output 8 ETWORKBUS SENSOR CONTROLLER f SUPPLY MIXING VALVE 0 10V elolojolololololololololelolelel lolololejolelolelejo ojolejololololololejolejolelolo lololololololejolejo APP La SENSOR CONTROLLER EXT SWITCH SENSOR MIXING VALVE 24 VAC P Mixing Valve Actuator Outdoor compensation module If fitted ADD ON MODULE WIRELESS RECEIVE EY EY EEI II II Output 1 Output2 f Output3 Output4 Output5 Output6 Output7 Output 8 THERMAL ACTUATORS
53. tors on the manifold Under the front cover of the Room sensor a selector can be accessed and the number of its output its CH channel can be set with a screwdriver Up to 14 channels can be set on the selector and there are two auxiliary channels with special functions A WLM master has 8 outputs and additional slave modules each with 6 outputs can be connected creating a system of 14 individual zones Please note that channels 10 to 14 are marked as A through E on the selector A Room sensor set for CH1 will activate the thermal actuator connected to output 1 on the master The channel number can be selected without any power connected to the system The channel of the Room sensor can be changed afterwards if needed If two Room sensors are placed in the same room and set to the same channel the temperature control will work according to the average temperature of both Room sensors Channel 0 Each Room sensor is delivered with the switch in position 0 ensuring that it must be set to operate correctly Channel 0 can also be used for a Room controller controlling a group of Room sensors where the control position could be somewhere central e g the kitchen rather than in the area where the Room sensors are installed Setting it to Ch 0 means that times and temperatures are set on the WLCT for the group but that the WLCT will not control a specific output itself Channel 15 F Special function Further instructions in the user manual T
54. uld be configured so that it closes the valve if there is no heating demand OVdc signal The control signal can be reversed to 10 OV via the master menu system if required eee Control action of the mixing valve actuator is P and the parameters can be changed if required in the master menu system Please contact the supplier for further instructions p 21 INSTRUCTIONS Creating a Network Cirkulation pump control of each string String 2 _ __ ON N NN BAFS WLM BA FS f WLM BA FS f IWLM a String 1 _____ f N NN NN i A WLM BA FS IWLM BA FSf WLM BA FS Network communication Boiler WLM2 Master 1 WLM2 Master 2 Master Cable p 22 BR965A31a BR 0965 A01 In large buildings with more than 14 zones where multiple manifolds are utilized it is possible to use multiple masters to create a single network One master must be defined as the network controlling master by setting both encoders to zero see pic Subsequent masters up to nine should be connected as a string where they will all use a common pump If more than one pump is used a separate string should be created for each pump se drawing below On the first string all left hand encoders must be set to 1 and the right hand encoders should be set in sequence from 1 to 9 On the second string of masters all left hand encoders should be set to 2 and the right hand enc

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