OJ Waterline control system

OJ Waterline control system THERMOSTATS FOR COMFORT HEATING AND SNOW MELTING Product presentation

Mk3 It s all about Room Temperature Control! The essential main goals are: Comfort Flexibility Reliability Energy & Cost efficiency

Mk3 To meet these essentials, OJ Electronics has developed The OJ Waterline Control System! Also called WLM3..and what does this system offer?

Mk3 A control system engineered for hydronic under floor heating & cooling. Designed for residential and commercial applications (Possible networking of Masters for large installations). Easy and quick installation (Using plug-in terminals and easy accessible screw terminals). High comfort with minimal energy consumption. Intelligent control for optimal operation with long life. Combines Under Floor Heating & Cooling control.

Mk 3 And how does it look? 130 mm

Control with Wireless and 2-Wired Bus System How to connect THERMOSTATS FOR COMFORT HEATING AND SNOW MELTING Product presentation: Part 1

The 2-Wired System Safe voltage! The 2-wire system is based on a 5 Volt low voltage communication bus, and is perfectly safe for end users under all conditions Master 8 outputs AO-module 6 outputs Easy wiring of Room Sensors/Controllers with standard cable (as BUS), from 2x0.25 up to 2x1.5 mm 2, length up to 300 m. Can also be wired in star.

The 2-Wired System Easy to add an extra Room Sensor/Controllerwith the standard 2-wire cable. Master 8 outputs AO-module 6 outputs

The Wireless System Remote Receiver for optimum position for radio signals. (more than one can be used) Up to 20 wireless thermostats can be added per 1 receiver Same type Masteris used for both the 2-Wired and the Wireless system. Easy to combine the 2-Wired and the Wireless system in same application. Master 8 outputs AO-module 6 outputs

Universal Master For Wireless & 2-Wired Bus System THERMOSTATS FOR COMFORT HEATING AND SNOW MELTING Product presentation: Part 2

WLM2 features part2 OJ Waterline Control System Features Master with eight outputs (for thermal actuators) Add On module with additional six outputs. Networking of Masters (Adds support for large installations with up to 1890 rooms) Double output terminals for up to 14 thermal actuators (ensures easy connection of more loops to the same channel output) Easy interconnections (RJ14 connectors like telephone plugs - for quick connection of Add On module and Receiver to enable wireless operation) Output for motorized 0-10V DC mixing valve.(available on FS Master Only) (Enables control of supply water temperature)

WLM2 features OJ Waterline Control System Features Supports Radiator zones. Room sensors and controllers are designed for easy mounting and battery replacement. Temperature on time. (Adaptive function ensures the desired temperature on time) Advanced Cooling features (Dew point protection through optional humidity sensors prevents condensation on floors) Humidity Sensor (RH) combined with air sensor(room thermostat) creates dew point value. The OJ controller ensures protection of the floor by controlling to 3 degrees before dew point. Support for Domestic Hot water. Optional interface for Building Management Systems (BMS) Compatibility with Home Automation Systems

Universal Masters Universal Masters For Wired and Wireless systems 8 Actuator Outputs Pump & Boiler control AO module for extension of outputs. 6 Actuator Outputs Connection of Room Sensors/Controllers Wired and Wireless Room sensors & controllers can be connected to the same Master. Wireless function Connection of one or more receivers. Exercise function To optimise lifetime of valves and pumps, these will be exercised every 72 hours during inactive periods.

The Master program Product Outputs 8 Standard Master 8 Digital Master 6 AO-module Supply voltage 230 V 230 V 230 V Output 230V WLM2-1BA WLM2-1FS WLM2-1AO Output 24V WLM2-3BA WLM2-3FS WLM2-3AO Control of mixing valve No Yes, delivery incl. sensor Weather compensation No Yes, with Outdoor module type WLOC Temperature settings Fixed Factory settings Default settings User settings Comfort temperature 21ºC 21ºC +5/+40ºC Setback temperature 18ºC 18ºC +5/+40ºC Min. limitation 17ºC 17ºC +10/+30ºC Max. limitation 27ºC 27ºC +10/+40ºC Frost protection 5ºC 5ºC +3/+8ºC

Digital Master with display Displaywith symbols and read-out of settings of temperatures Setting buttons 4 LED s & Symbols Supply voltage & Setback temp. X -Main Pump (depends on configuration) Secondary pump Boiler 8 LED s for outputs to Thermal Actuators

Digital Master: Setting of temperatures Symbol Setting of room temperatures: Comfort Setback Frost Setting of floor sensor: Max. Limitation Default 21ºC 18ºC 5ºC 27ºC Scale +5/+40ºC +5/+40ºC +3/+8ºC +20/+40ºC Min. Limitation 17ºC +10/+30ºC

Digital Master: Weather Compensation Symbol Default Scale Max. temperature of hot-water supply Setting of WINTER operation: Outdoor temperature 55ºC -3ºC +25/+85ºC -20/+10ºC *Temperature of hot-water supply Setting of SUMMER operation: Outdoor temperature 45ºC 25ºC +30/+70ºC +10/+35ºC *Temperature of hot-water supply 30ºC +10/+40ºC *When an outdoor sensor is used, the actual target temperature will be adjusted automatically to compensate for the change in outdoor temperature.

Digital Master: Control of the operation Symbol e.g. Software version 3.3 Control of Room Sensor/Controller function: OK: Correct operation E1-E9: E9: Failure OK Room Sensor/Controller with failure C01-1U 1U-E1 Read-out of actual data: Outdoor temperature Actual temperature of supply water 2ºC 46 C *Target temperature temperature of the supply water Control signal 0-10V 0 for mixing valve By entering this menu it is possible to adjust the P & I settings of the valve action. *With mounting of outdoor sensor. 46 C 3.5V

Digital Master: Read out of temperatures *Room Sensors/Controllers: -- Room temperature -- Sensor/Controller incl. floor sensor: -- Room temperature Min. Limitation temperature Max. Limitation temperature Room temperature -- Symbol e.g. -- 22ºC -- -- 22ºC 20ºC 27ºC 22ºC --

Room Sensor/ Room Controller Program THERMOSTATS FOR COMFORT HEATING AND SNOW MELTING Product presentation: Part 3

Room sensor/controller program WLTP Room Sensor Institution version Design & mounting: Classic design. WLTA Standard Room Sensor Surface wall mounting or to standard socket. Standard AAA battery, alarm for replacement(wireless System). Min. 20% heat if empty battery or defect Room Sensor/Controller. WLTM & WLTD Room Sensor with setting mode Control of temperature: WLCT2 Room Controller with build in clock functions PI-control for accurate & stable comfort. 2 or more sensors/controllers in large rooms for average temperature measuring. Room temperature adjustment ± 4 C. Floor limit sensor for min. or max. limitation. Automatic or manual setback temperature and frost protection.

Control of room temperature Traditional ON/OFF control Over and undershoots the room temperature meaning poor comfort and energy waste as an end user tends to increase the setpoint while feeling cold at the undershoot periods. Advanced PI-control No over and undershooting of temperature ensures high and stable temperature comfort with a minimum energy consumption 20.5 C OFF 20.0 C 19.5 C HEAT 100% ON

Room sensors/controllers incl. Floor Sensor The Air Sensor is for control of room temperature. Min. temperature limitation Gives a minimum surface temperature of the floor, even when the air temperature is above the set point. Recommended for tiled floors to ensure high comfort. The Floor limit Sensor with priority is for limitation of floor temperature. Max. temperature limitation Prevents too high temperatures damaging the floor material. Recommended as protection to wood floors.

Room Sensors - Settings & Functions Setting Mode Switch: Automatic operation according to a Room Controller or the timer input on the Master. Fixed comfort temperature (21 C). Fixed setback temperature (18 C). Fixed operation temperature (frost protection of 5 C). Setting of Room Temperature: Max. setting ±4 C preventing excessive adjustment.

Room Controller with built-in clock-function Automatic comfort and setback temperature. Adaptive function (optimum start) For control of room temperature and area. Pre-programmed 4 event timing, requires only actual time and day to be set. Programs can be changed. Floor limit sensor can be connected. Wake The day begins Out Time to leave Night Time to sleep Home Back from school and work

Room Controller with built-in clock-function Setting up areas with the room controller 1. Enter the Menu AREA in the WLCT2 Room Controller 2. Choose the channels (rooms) that should get the setpoint from this Room Controller, by setting the channel number to On Channel 1 (Room 1) Channel 2 (room 2)

Configuring the system THERMOSTATS FOR COMFORT HEATING AND SNOW MELTING Product presentation: Part 4

Setting of Channel Wired Sensors Channels 1-9 + A-E: (1 to 14) Setting of Room Sensor/Controller to activate the Thermal Actuator. Set the arrow to position 4, and the channel output 4 will be activated. These settings can and should be made before the system is powered up. Channel 0: Used with the WLCT2 room controller, for controlling heating areas from a central position. (The WLCT2 is not part of a room)

Configuration of the Wireless Sensors The Master into learning mode: Set the learning mode Dip 3 switch to ON Standard Master: The Output LED s will indicate the system is configuring. Digital Master: LEARNINGMODE will also be shown in the display. When a Room Sensor/Controller is present on a channel, the corresponding LED will be lit. Press Activating of the Sensors/Controllers: Room Sensors: Remove the front cover and push the little button approx. 2 sec until it gives a little beep. Room Controllers:Press the watch symbol approx. 2 sec until the display shows init. The Room Sensor/Controller will now transmit it s unique code and the system has been configured.

Setback Temperature & Area Control THERMOSTATS FOR COMFORT HEATING AND SNOW MELTING Product presentation: Part 5

Central Setback Temperature Mounted Room Sensors Master AO Module Timer for setback temperature Generic remote timer connected direct to the Master.

Central Area Control Room Controllers for central Area control (channel 0). A room controller can be set to channel 0 and mounted outside the area, but set to control a number of rooms within a group, or it can be used as a sensor for a specific room, but still set to control the other rooms within the group. Example of mounted Room Sensors Individueladjustment ±4 C of the room temperature.

Operation of Pumps & Boiler THERMOSTATS FOR COMFORT HEATING AND SNOW MELTING Product presentation: Part 6

Operation of Boiler & Pumps Thermal Actuators opens Time 0:00 Boiler Time 4:10 Main Pump Time 3:10 UFH Pump Time 3:00 The boilercan only start again 5 minutes after it has stopped. (max run time 12 times per hr) The pumpswill continue operate 60 sec after the boiler stops allowing flow to dissipate through the system, Advantages: No water pressure against closed valves. Only start up by larger heat demand. Filter out operations under 3½ minutes. Longer life time with good economy.

Operation with Weather Compensation Mixing valve Sensor Outdoor module Operation with Weather Compensation: Outdoor module creates water supply target temperature. The mixing valve will open 20% during start-up process. Residual hot primary water is used before the boiler will start. When the boiler starts the mixing valve operation is released.

Special features THERMOSTATS FOR COMFORT HEATING AND SNOW MELTING Product presentation: Part 7

Network functions In large buildings with multiple areas it is possible to use a master to create a network of multiple zones. Circulation pump control of each string String 2 A network master could be a Digital Master for centralized control of mixed supply water or a Basic Master where no mixing is required. WLM- BA/FS 2,1 WLM-AO WLM- BA/FS 2,2 WLM- BA/FS 2,3 Slave Masters can then be added to the network to create additional zones. Boiler String 1 Slave Masters controlling a common pump are connected as a string on the network system. Up to 15 strings, each of up to 9 masters, can be connected as a network. Switching between cooling and heating can be done via the Network Master using a single WLAC interface. WLM- BA/FS 0,0 WLM- BA/FS 1,1 WLM- BA/FS 1,2 WLM- BA/FS 1,3 Network communication cable ID-selectors on the Masters Have to be set in order to identify the master on the network

Cooling functions In addition to controlling heating, all WLM masters have the ability to control the system for cooling. String 1 A WLAC module is required for the master to know that cooling is required. WLM- BA/FS 2,1 WLM- BA/FS 2,2 WLM- BA/FS 2,3 By using the humidity sensor (WLH-19) the system limits the formation of condensation on floor surfaces due to high humidity. Energy source WLH Local attached humidity sensor for local dew point protection Humidity sensors are attached to each master, and in a network the worst case situation will control the water supply temperature. If cooling is being limited due to high humidity a dehumidifier can be enabled by a master. WLM- BA/FS 0,0 wlac Changeover module WLAC-19 for switching between heating and cooling 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. Signal for cooling/heating changeover

BMS functions The BMS function: In buildings with a Building Management System, this system can communicate with the WLM2 system by using the versions with BMS interface. This enables full remote control to ensure optimal control and energy efficiency in the building. Main BMS features: Read & set all individual room & floor limit temperatures Read all masters in a WLM2 network through the WLM2 network master. Read out status of all outputs like pumps, boiler and actuators Read & set weather compensation values Override functions to support testing RTU MODBUS via RS485 Example 1: Building Management Computer communicating with a standalone WLM2 with BMS interface Example 2: Building Management Computer communicating with a network of WLM2 with BMS interface

Domestic Hot Water Control It is possible to control the domestic hot water temperature with a special clock thermostat to ensure optimum energy saving. A sensor from the thermostat measures the temperature in the storage cylinder. A zone valve is then controlled via the WLM master, which in turn activates the boiler on demand. The under floor heating pump will NOT be activated 2-Wired type WLCT2-19/HW Wireless type WLCT2-29/HW 29/HW Boiler Hot Water cylinder Special WLCT2-19/HW sensor to enable control of the Hot Water Temperature Hot Water Sensor Automatic day and night temperature. Only for Control of Domestic Hot Water cylinders. Pre-programmed, requires only actual day and time to be set. Programs can be changed. External Sensor must be connected. WLM- BA/FS

Radiator Control It is possible to control a radiator circuit room temperature with a special Room Controller to ensure optimum energy saving. The thermostat 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. Boiler Radiator Special WLCT2-19/R or WLCT2-29/R controller to enable control of a Radiator zone 2-Wired type WLCT2-19/R Wireless type WLCT2-29/R 29/R Automatic comfort and setback temperature. Only controlof of zones heated by radiators. Pre-programmed, requires only actual time and day to be set. Programs can be changed. WLM- BA/FS

2 Stage Heating Control If there is a need for enabling a secondary heat source in a room (e.g. a backup electrical radiator), it is possible to use a special room controller that will control two separate outputs. Additional heat source in the room Special WLCT-19/2 or WLCT-29/2 controller to enable control of a 2 step zone The second output will be activated only if the temperature cannot be achieved within a preset time period and a programmed hysteresis. Boiler Stage 2 WLM- BA/FS Stage 1 Room with additional heat source

System Check System 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 without the normal delays in the system. System check is enabled by setting the Masters DIP 1 switch to ON. While using the system check it is possible to activate and deactivate outputs by changing the temperature settings from minimum to maximum on the Room Sensors / Room Controllers.

Interconnection of WLM2 products Interconnections: For easy installation, interconnections between master modules, master and add on modules, and master and wireless receivers, are made by pre-wired plug in RJ14 connectors (like telephone plugs) For connecting the WLM2 add on modules to WLM2 masters, a plug in connector is provided with the add on module. A WLRC2 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 (WLM-NET)

Resume of Main Features Resume of OJ Waterline main features: Advanced operation of Boiler, Pumps and Thermal Actuators for maximum energy saving and lifetime. Room Controllers with build in Clock for setback temperatures and Area Control. 2-wired Room Sensors/Controllers connected by low voltage BUS. Wired and Wireless Sensors/controllers can be used in combination. Possibility to add weather compensation Cooling functions can be added including humidity sensors for Dew point protection. Network functions for larger installations. Interface for BMS (from 1st of September 2009) Provision for radiator, Domestic Hot water and 2 stage control.

Mark 3 Thank you for your attention

WLM3 Hydronic Heating & Cooling Efficient and flexible OJ Electronics A/S 2010