WLM2 user guide
Contents
1. 28 Zone Chall E 32 QUICKGUIDES QUICK GUIDE ANALOGUE ROOM SENSORS 1 These room sensors have an adjustment knob which enables you to increase or decrease the room temperature setting by up to 4 C 2 room sensors type WLTM 19 and WLTD 19 have a slide switch for selecting the mode of operation of the room sensor Four different modes can be selected Auto Day Night and OFF B Auto Roomsensor will follow the temperature settings of the master or if the room sensor belongs to an area controlled by a WLCT2 room controller it will follow the automatic sequence of temperatures and timings set in the WLCT2 X Day It will control the room temperature according to the DAY setting defined in the master typically 20 C Night It will control the room temperature according to the NIGHT setting defined in the master typically 15 C sk OFF It will control the room temperature according 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 amp WLTD 19 are recommended for guest rooms and other infrequently used rooms asthey allow simple override of the automatic timing sequence QUICK GUIDE WLCT2 PROGRAMMABLE ROOM CONTROLLERS 1 Setting time and day If not already done by the installer adjust the time and day on any WLCT2 room controller as follows pic2. 7 IPI CITI CN AM 7 Supply Water Temperature 9 Using outdoor compensation module for weather compensation 9 eS MIETU P I E 11 NEM TT 13 Master Factory Settings uesseccasvshpestetasszetkeixxs uir ta Fa taU 13 Error ING AUGON p 15 WLCT2 and 2 2 17 DEO a e a 17 GENG NET OTT 17 Daily Use of the room ra tanti krin tn na ied aa a bin ka epoki 20 Programming 4 Event Clock Time and Temperature 21 Advanced Settings and 22 Reset to fatctory Settings room controllers ss eeseenensanzenmenzennnnanenzennzzi 26 Domestic nob water control ieciccadetesnmsmcenantansmadticcslesionteanocasndeasdeveanteadaxmexdanedesnees 27 Radiator CONTO EA 27 T 27 Waterline ROOM 28 Setting of Room kno eed mika 28 Setting of Room sensor Operating Mode
3. 19 ArEA Group of rooms The rooms that are to be set as part of the WLCT2 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 requirement during afternoon and early 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 WLCT2 room controller is then situated in the living room and operating output 1 then the WLCT2 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 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 is displayed press OK and change to ON Repeat this for CH 5 All three room sensors will now operate under the control of the WLCT2 room controller In total up to 14 Channels can be programmed in this way and it is
4. 57640A 11 08 DJU WLM2 WLTA WLTD WLTP WLCT2 OJ ELECTRONICS www oj dk taking comfort further CONGRATULATIONS Congratulations with you new control system for underfloor heating and cooling The control system has been developed to provide a temperature control system for room heating and cooling integrating the switching of primary heating and cooling sources with the control of water temperature and mixing devices This ensures the best possible comfort conditions and also reduces energy consumption Highlights of the system depending on equipment Heating and cooling control for true comfort Humidity sensor to prevent condensation on floors Energy saving comfort with adaptive function Area control for easy operation Flexible installation for wired and wireless connection Network communication for large applications Easy installation with plug and lead connections Optional weather compensation OOS BR 0965 A10 CONTENT INSTRUCTIONS Quick guide analogue room sensors Quick guide WLCT2 programmable Room controllers 4 Quick guide for Master eene nnns b TOUDE SHOOUAD m Tcse M Master with Display Type 2
5. Weather compensation Outdoor temperature EEEEEEN Warm summer Water temperature 14 Additional information Room temperature control PI control P 4 C 2 90 180 sec K factor 0 1 Adaptive PWM control Max allowed Room temperature fluctuation Self adjusting adaptive PWM time interval limits 15 45 minutes Max number of connected Wired and wireless sensors Supply water temperature PI control P 20 C control 300 sec K factor 0 05 Error Indication 15 During normal operation the 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 power LED or one of the 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 WLM2 FS MASTERS submenu 2 Flashing Power LED Red and green Communication to the network has errors On the network master it tells that one or more masters are not communicating On a network slave it tells that communication to the netwo
6. 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 Daily Use of room sensor 4 Event Clock Mode Sleep to ssh 07 Return 4 event clock mode automatic mode Comfort mode IS LAV x 5 secs Manual mode 20 The day has been split into 4 events describing a typical day When the room sensor is in this 4 event mode it will change the temperature to the required level automatically at the programmed times As standard the room controller has days 1 to 5 Monday to Friday with 4 events and days 6 and 7 Saturday and Sunday with 2 events Each events allows you to increase or decrease the set temperature 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 it O Q 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 even
7. IGHT 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 WLCT2 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 x9 and WLTD x9 have a slide switch see fig 4 for selecting the mode of operation of the controller Four different modes can be selected Auto Day 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 WLCT2 Room controller it will follow the automatic sequence of temperatures and timings set in the WLCT2 BR939A08B Slide Day It will control the room temperature according to the DAY setting defined in the master switch typically 21 C C Night It will control the room temperature according to the NIGHT setting defined in the master tvpicallv 177C Adjustment knob OFF It will control the room temperature according 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 unoccupie
8. Max 27C Maximum Floor limit temperature for room sensors with limit sensor floor sensor Min 17 C Minimum Floor limit temperature for room sensors with limit sensor floor sensor Supply Water Temperature Control Using supply water sensor for limitation of supply water A limit sensor should be used with the WLM2 1FS amp WLM2 3FS but can be used without the weather compensation module WLOC 19 In this case the master will control the supply water temperature flowing into the system via the 3 or 4 port mixing valve and actuator The factory default setting is 45 C but can be changed via the master display Using outdoor compensation module for weather compensation When the outdoor compensation module WLOO is connected to the system the master calculates the correct supply water temperature taking into account the heat losses that will vary depending on the outdoor temperature and the room temperature requirements of the system For example on a day when the outdoor temperature is 12 C it is possible to run the heating system with a supply water temperature of only 35 C this ensures economical running of the boilers and comfortable room conditions throughout the year The max allowed supply water temperatur prevents excessive water temperatures if the outdoor temperature becomes extremely cold e g 30 C 55 C Max allowed supply water temperature This is a safety maximum 13 Winter Outdoor temperatu
9. R 2 step heating WLCT2 2 It is possible to control the domestic hot water temperature with a special version of the WLCT2 called WLCT2 X9 HW to ensure optimum energy saving A hot water sensor is connected to the controller and measures the temperature in the storage cylinder e To change the temperature of the domestic hot water just change the set point in the WLCT2 X9 HW by using the up or down button e The 4 event system in WLCT2 X9 HW can be used to save energy when hot water is not needed It is possible to control a radiator circuit room temperature with a special version of the WLCT2 called a WLCT2 X9 R to ensure optimum energy saving The controller measures the temperature in the room and a zone valve is then controlled via the WLM2 master which in turn activates the boiler on demand e To change the temperature of the radiator circuit just change the set point in WLCT2 X9 R by using the up or down button e The 4 event system in the WLCT2 X9 R can be used to save energy when heat is not needed A special version of the WLCT2 called WLCT2 X9 2 is capable of controlling an additional heat source in a room In addition to the primary under floor heating output the room controller is now able to control a second output as a boost function which will be activated only if the temperature cannot be achieved by the primary under floor heating output within a preset time period The Room Controller is used a
10. RESET instruction below The external Supply limit sensor type ETF 18994 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 E10 10 flashes No connection to wireless receiver type WLRC2 19 E11 11 flashes Step 2 on 2 step controller WLCT2 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 16 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 erro
11. accept and the up and down keys to select another room The actual room temperature is shown in the centre of the display If a maximum limitation sensor is connected the measured temperature is shown above the room temperature and if a minimum limitation sensor is connected the temperature is shown below INSTRUCTIONS Using cooling functions Master Factory Settings 13 If the installation is capable of doing cooling a WLAC 1 switching module is installed To enable cooling switch the slider on the right hand side to the cooling position The system now switches into cooling with a set point than is 3 C above the master day set point In case the WLAC 1 module is connected to a BMS controlled signal the BMS system will make the decision when to switch to cooling please leave the slider on the WLAC 1 in position heat By using a humidity sensor the system limits the formation of condensation on floor surfaces due to high humidity If a dehumidifier is being used it will activate if high humidity limits the cooling function When cooling is enabled the cooling set point will be pre determined by the master and will override any settings in any clock thermostat to ensure optimum energy efficiency House temperature 21 C Night temperature 18 C NEN Floor Limit temp high 27 C Floor Limit temp low 17 C a Weather compensation Outdoor temperature 3 C Cold winter Water temperature NEN
12. also being set to control this output RESET There are 2 different reset actions that can be used HARD RESET If the VY button is pressed for 5 seconds a HARD RESET will be initiated Indicated by all the red output LED 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 To add or replace a new unit please refer to Replacing equipment Replacing a faulty sensor controller 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 v 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 v 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 To reconnect room sensors controllers please refer to Replacing equipment Replacing a faulty sensor controller INSTRUCTIONS Type WLCT2 and WLCT2 R HW 2 I
13. cated by a sun in the display press OK button Now use the up and down buttons to select the temperature required and press OK button Setting remote night temperature If a remote timer has been fitted by the installer it is possible to automatically switch to a night temperature To adjust the night temperature press the up button until the moon is displayed and press OK button Now use the up and down buttons to select the temperature required and press OK button Other advanced settings can be changed See section Master with display type WLM2 TROUBLE SHOOTING If any LED is flashing on master Please refer to section Error indication Room is too cold After running for at least 48 hours Room is too hot After running for at least 48 hours on A Q N O a A Q N 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 by a WLCT2 room controller check that the time and temperatures are set correctly If the room sensor has got an override switch WLTM or WLTD 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 draught
14. d for long periods WLTM x9 amp WLTD x9 are recommended for guest rooms and other infrequently used rooms as they allow simple override of the automatic timing sequence 28 OJ ELECTRONICS A S STENAGER 13B DK 6400 SONDERBORG DENMARK 45 73 12 13 14 F 45 73 12 13 13 OJ 90J DK WWW 0OJ DK OJ ELECTRONICS UK CRUSADER PARK WARMINSTER WILTSHIRE BA12 8SP UNITED KINGDOM T 44 01985 213 003 F 44 01985 213 310 SALES OJ UK CO UK WWW OJ UK CO UK OJ ELECTRONICS A S C O ROBERT BIELECKI UL BRZOZOWA 4 58 160 SWI EBODZI CE POLAND T 48 4220 91 742 F 48 4220 91 744 RBI OJ DK WWW OJ ELECTRONI CS PL CN OJ ELECTRONICS taking comfort further OJ ELECTRONICS taking comfort further Zone Chart mm ULL W adjustment The following chart enables you to write down the zone name the number of loops serving it and the control thermostat type PLEASE LEAVE THIS INSTRUCTION WITH THE CLIENT Thermostats Thermo heads Output Zone Water loops Thermostats C Ce DEHBI Ce cus C coe Ce CeO CE Ce CE NB gt 7 6 4 0 A
15. des how long the actual temperature is allowed to remain below the setpoint minus the TEMP setting before the second output is activated 25 Adaptive function This function enables the thermostat to calculate when it needs to switch ON so that the required 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 2 5 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 y button to confirm ESC Escape Press OK V button to end programming and to return to scheduled programme 26 Reset to fatctory Settings room controllers NOTE If more than one WLCT2 is present on the system please copy this page Press the pin button R for 3 secs and the thermostat returns to factory settings Remember to set time day and area keverte tempore OOO Standard Special Special Special WLCT2 x9 WLCT2 x9 R WLCT2 x9 2 WLCT2 9 HW Day 1 5 me 1 Sa Il I 17 High floor limit 27C temperature Low floor limit 17 C pore Special settings settings 2 step temperature o 2C difference Insert the room name in the box against each Ch number and add ON if it is controlled by a clock thermostat 27 Domestic hot water control WLCT2 HW Radiator control WLCT2
16. eration 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 us A 2 events 5 days 2 event 2 days indicated by Code 2 52 2 252 25 AN Select the required sequence with the OK y button ESC 23 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 temperatures 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 WLCT2 unit The maximum a
17. erature level reduce the outdoor temperature setting and or reduce the supply water temperature at this setting The master calculates the supply water temperature on the line C to 1 if an outdoor design temperature of 3 C is selected or on the line C to 2 if the outdoor is selected at 10 C The intersection point on the line of the actual outdoor temperature indicates the calculated supply water temperature Compensation for outdoor temperature can only be done if an outdoor compensation module WLOC is installed Without outdoor compensation module the Master will adjust the supply temperature after the design supply water temperature winter setpoint default 45 C Service menu 55 C Push accept to enter The controller will automatically return to main menu after 30 minutes Software version OK no failures EO to E11 if a failure is present See page 13 for explanation LS Low signal on wireless room sensors controllers LB Low battery on wireless room sensors controllers Submenu 2 Push accept to enter and see which unit has the failure Submenu 2a Network Status normally hidden TOTAL X If a network master detects a network this menu entry is shown Here it is possible to check the status of the network TOTAL X Shows how many masters the network master detects x is the amount of connected masters NET OK No errors detected in the network ERROR ON IDxx Shows if any of the attached masters has local erro
18. have two events generally morning ON and evening OFF Time and temperature TE 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 v once more Note that when programming the Sleep time event 4 3 Time and temperature please ensure that this time is before midnight 00 00 Time and temperature Advanced Settings and Read out Press both UP A and DOWN v buttons together for 3 seconds INFO 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 m Press UP or DOWN v button to show the different readouts Software version 2 m No changes can be made here Use the OK V button to end ure Floor temperature 59 PRO 4 event sequence It is possible to change the factory event sequence of Days 1 5 4 event and days 6 8 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 op
19. justing the program times and temperatures On Monday to Friday day 1 5 the CT room controller operates a 4 event program wake leave return sleep and on Saturday and Sunday day 6 7 2 events wake and sleep Each event can have a separate temperature amp time Each event is indicated on the display by the symbols C Qe To adjust these settings Press OK button for 5 seconds The display shows the wake up time for Monday to Friday To adjust the hours use the up and down buttons and press OK Now adjust the minutes using the up and down button and press OK Now adjust the desired wake up temperature using the up and down button and press OK Now repeat b to e for the leaving time and temperature the return time and temperature and the sleep time and temperature Now repeat b to e for Saturday and Sunday wake and sleep times and temperatures a b e d e f g NB To set up different types of event programs change to Fahrenheit scale change to AM PM clock or change of other advanced settings please refer to the section Instructions WLCT2 QUICK GUIDE FOR MASTER MODULES WLM2 1BA WLM2 3BA a e kal im a F BA masters are set and need no adjustment see Factory settings page 13 On the FS Master you can adjust the operating temperatures for any rooms which are not controlled by a CT room sensor oetting day temperature To adjust the day temperature indi
20. llowable floor temperature setting is shown Use the UP A or DOWN v button to increase or reduce and OK y button to accept The display will now show LoLi Press OK y 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 y button ArEA Group of rooms The rooms that are to be set as part of the WLCT2 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 requirement during afternoon and early 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 WLCT2 room controller is then situated in the living room and operating output 1 then the WLCT2 need be programmed to control outputs 1 4 amp 5 Each room sensor will have been set to opera
21. m controller However the local room sensors within the group are still capable of being adjusted by 4 C so that some rooms can be set higher or lower than others The decision as to which room sensors will form part of the room controllers group is made by programming the room controller see instructions for WLCT2 unit Any room sensors that are not part of the room controllers group will operate to the temperature as defined in the master control but again with the option of local 4 C adjustment Using External Switch for Night Setback The day temperature set point is defaulted to typically 21 C and the night temperature to typically 18 C These default settings can be changed on the FS master The current operating set point of the master can be changed from the day temperature into night temperature by connecting a separate timing device to the master When the external switch or timer is used to switch to night setback this will override any time settings in a WLCT2 room controller including any room sensors that are part of a group allocated to that room controller Moving Around in the Menu By using the A UP and the v DOWN you move through the main menu into sub menus The description of these submenus can be seen below If a value needs to be changed then press CONFIRM button once and alter the value with the A UP and v DOWN buttons Then press v CONFIRM to accept the new value If you wish to
22. ntroduction The room controller type WLCT2 x9 is a 4 event programmable controller used to control underfloor heating areas or special features on the WLM2 installation The standard WLCT2 x9 can be used to programme up to 4 time and temperature events over a 24 hour period based upon a 7 day setting Once a WLCT2 x9 has been fitted the times and temperatures for the area s it controls will no longer come from the defaults set in the main WLM2 master In addition to the immediate area of control set within the WLCT2 x9 and selected via the AREA setting contained within its internal menu the WLCT2 x9 can control the time and temperature characteristics of other sensor up to 14 fitted to the WLM2 master this has been designed to maximise comfort and efficiency and promote energy saving and associated cost savings Where the WLCT2 x9 is controlling other areas the 4 C setting of those areas will now operate from the WLCT2 x9 settings e g WLCT2 x9 is set to 22 C and has been given control over Area 1 the WLTA x9 fitted in Area 1 now has a control range of 18 C 4 C 24 4 C In addition to the standard WLCT2 x9 room controller you may have fitted to your system one of the following WLCT2 x9 2 This control allows the operation of a secondary heat source for a specific area as a boost function operating in conjunction with the underfloor heating WLCT2 x9 R This control is used for the control of radiator
23. r The failure code can also be seen in the service menu Submenu 2a 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 WLCT2 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 E6 6 flashes Channel output number one is configured as a dehumidifier output error caused by a room sensor controller
24. re fa Winter 45 C Design supply water temperature at outdoor temperature 3 C Design supply water temperature if used without outdoor compensation module Summer Bl 206 Outdoor temperature fa Summer 4 Supply water temperature at outdoor temperature 25 C mu fe mE 10 A MAX SUPPLY WATER TEMPERATURE 8 BR939A16 AB o Oo SUPPLY WATER TEMPERATURE w O 25 C OUTDOOR TEMPERATURE Line 1 Factory settings Line 2 Example on modified settings Max supply temperature The max allowed supply water temperature is set according to the design requirements of the installation line A on the curve This is the safely maximum Weather compensation Winter A design outdoor temperature and the corresponding design supply water temperature are set point B To increase the heat output adjust the supply water temperature higher until you feel comfortable we recommend only a 2 degree adjustment of this temperature at a time and time allowed for the system to respond Summer An outdoor temperature and the corresponding supply water temperature are set point C Set the outdoor temperature at the level where heating will no longer be required this is known as the summer shut down temperature Default setting is 20 C Then set the supply water temperature that you require when the outside temperature is at 20 C The default is 25 C To start the summer shut down at a lower temp
25. reset the master to factory settings then push the v CONFIRM button for 15 sec until the 8 outputs starts blinking The master has now been reset to factory settings Control of Room Temperature Within the memory of the master there is a room temperature Setpoint which will apply for all rooms connected to the system This setting is typically 21 C when the unit leaves the factory but it can be increased or decreased as required Any change will apply to all rooms on the system unless a room controller is employed see next para Day Temperature Temperature set point for all room sensors not part of a room controller group Push v accept and A v to adjust the set point Night Temperature When activated via an external timer this action is valid for all room sensors connected to the master Night setback can also be activated on individual room sensors WLTM amp WLTD by using the selector switch and setting to the night position A room controller WLCT2 will automatically switch to night setback at the times programmed into it as will all the other room sensors which are included in its group Off Temperature All room sensors with an override switch WLTM amp WLTD can be set to an OFF position This is known as a frost protection position and if the temperature in the room shoud fall as low as 5 C the heating will be enabled to prevent frost damage The 5 C level can be changed in the master module
26. rk master is missing Flashing Power LED Red 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 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 next page 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 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 WLOO 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
27. rs IDxx tells which master it concerns The ID number is what the encoder on the master is set to NET ERROR Tells that one or more masters on the network has stopped communicating Please use the menu entry below to check which masters it concerns Push accept to enter and see which master it is that has the error and what error it is Using the up and down button select which masters status should be shown on the right side of the display gt ID11 E CHANNEL Possible Errors LOADING STATUS Receiving information from the network STATUS OK No errors detected NET COMM ERROR Communication is missing to that master Please check the connection or remove the master from memory with a hard reset E1 E11 The same errors as shown in section Error Indication under Flashing Power LED E CHANNEL This is a channel error which has to be checked locally on that master 12 e 49 2 C 39 2 C Read out Outdoor temperature Read out Actual supply water temperature Actual application sensor temperature Read out Calculated setpoint by the controller for the supply water temperature Push accept for 3 sec to change Pl action amp 0 10V out Read out Control signal for the mixing valve At 10 V the mixing valve is fully open unless the output setting has been changed to 10 0 in which case at 10 V the valve will be fully closed Read out Room temperature in the different rooms Push
28. s a standard WLCT2 If required the settings for when the second heating output is needed can be changed in the service menu in the WLCT2 X9 2 An additional Menu entry 2 st can be found In this menu two parameters can be changed Temp If the actual room temperature is higher than the setpoint minus this setting the second output will not be activated Time This parameter decides how long the actual temperature is allowed to remain below the setpoint minus the TEMP setting before the second output is activated INSTRUCTIONS Waterline Room sensors Setting of Room Temperature If the WLTM x9 or WLTD x9 Room sensor has been allocated to a WLCT2 controlled area then when AUTOMATIC mode has been chosen with the built in slide switch the temperature settings will be as programmed in the WLCT2 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 settings 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 N
29. s in a domestic central heating circuit WLCT2 x9 HW This control is used for the production of hot water control within a system Upon installation your installer should have set up the WLCT2 x9 control to suit your needs should you need to change any of the setting please follow the instruction detailed in following pages The WLCT2 x9 can be reset by pressing the button marked R see fig 1 this will allow you to return to the factory settings at any time The default factory settings are detailed after the WLCT2 x9 programming section of this manual Getting Started Fig 1 Buttons BR939B01A Adjustment down Adjustment Reset to Pin button up factory adjust of setting clock 17 18 Time and temperature Day number 4 event symbol xt Wake Out C Night 14 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 V Press the UP A or DOWN v buttons to select the correct minutes and press OK button vV Then press the UP A or DOWN v button to select the correct day and press V button AREA SETUP see next page
30. s 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 WLCT2 room sensor check that the time and temperatures are set correctly 3 If the room sensor has got an override switch WLTM or WLTD 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 Master with Display Type WLM2 Introduction BR0965A04d BR0965A03d WLM 2 Hydronic Master BRO965A45b WLM2 Hydronic Master WLM2 Hydronic Master A 9 10 11 12 13 14 00000 0 WLM2 1BA 3BA WLM2 1FS 3FS WLM 2 1AO WLM2 SAO The masters type WLM2 1BA and The masters type WLM2 1FS and The ADD ON type WLM2 1AO 3BA are pre set and need no WLM2 3FS are provided with graphic WLM2 3AO is an extension adustment See Master factory display to enable simple programming module for additional 6 outputs settings page 11 and operations of the unit to be The module needs no adjustment achieved using simple and easy to understand icons and symbols Using Clock thermostat WLCT2 x9 If a room controller is used as an area control for one room or a group of rooms then all the room sensors within this zone will operate according to the temperatures and times defined in the roo
31. t when the thermostat will resume the automatic programme Cancel comfort mode temporary override To cancel the temporary override press the OK y button twice Permanent override During holidays the scheduled 4 event program can be overridden Press the OK y button and then the UP A 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 y button once and the unit will resume automatic function 21 Programming 4 Event Clock Time and Temperature For each event the start time and required temperature needs Press OK V j button fora secs to begin programming to be set For example in the morning you wish the heating to start at 07 00 and the temperature to rise to 25 C Press OK button for 3 seconds and the start time is displayed Change this to 07 00 with the UP A or DOWN v button Press OK y to confirm The temperature is now displayed Change this to 25 C with the UP A or DOWN v button Press OK y button to confirm This action can now be repeated for the second third and fourth event Time and temperature fi 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
32. te 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 the OK V button and then the UP button to change the setting to ON Press OK V CH 2 is displayed Use the UP A button until 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 WLCT2 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 24 This menu is only visible on 2 step controllers WLCT2 x9 2 2 step Change of values in 2 step function fl 9 d Set the Channels Rooms Ch to ON if thev should follow the settings of this clock thermostat In total 14 channels rooms can be controlled Press the DOWN v button to activate or de activate the 2 step function Press OK V to confirm The display will now show TEMP Press OK V to continue Use the UP A or DOWN v button to change the temperature setpoint in the 2 step function If the actual room temperature is higher than the setpoint minus this setting the second output will not be activated The display will now show TEMP Press OK V to continue Use the UP A or DOWN v button to change the time in minutes before step 2 is activated This parameter deci
33. ture with button positions a Using a pen or pencil press the small pinhole button with the clock symbol b Using the up and down buttons adjust the hours and press OK c Using the up and down buttons adjust the minutes and press OK d Using the up and down buttons adjust the day number 1 Monday and press OK 2 Setting areas If not already done by the installer the WLCT2 room controller can be used to set the operating times and temperatures of room sensors channels in addition to controlling its own room To achieve this do the following on the WLCT2 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 WLCT2 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 NB If different times and temperatures are required for other channels room sensors within the system more than one WLCT2 room controller can be used Care must be taken to ensure that the action of selecting a channel On is not made on more than one WLCT2 room controller 3 Setting program times and temperatures Ad
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