KXD controllers are a new generation of powerful boiler and weather-controlled controllers that not only control the liquid fuel boiler, but also the space heating and domestic hot water. They allow the control of one or two heating circuits, switching between heat sources and return protection when filling the storage tank. They are used for liquid fuel boilers.
| COMPARING THE PERFORMANCE OF CONTROLLERS | KXD10B | KXD10 | KXD20 |
|---|---|---|---|
| Number of electronic relays | No | 1 | 1 |
| Number of inputs for temperature sensors | 8 | 8 | 8 |
| Number of analogue outputs (0-10 V or PWM) for circulator or power source control | 2 | 2 | 2 |
| BUS-connectivity of KXD controllers to each other and to other Seltron controllers | Yes | Yes | Yes |
| REGULATING SYSTEMS | |||
| Heating system with radiators | Yes | Yes | Yes |
| Underfloor heating systems | Yes | Yes | Yes |
| Convector heating system | Yes | Yes | Yes |
| Wall and ceiling heating systems | Yes | Yes | Yes |
| Domestic water heating systems | Yes | Yes | Yes |
| REGULATING HEATING CIRCUITS | |||
| Direct heating circuit | Yes | Yes | Yes |
| Mixing heating circuit | Yes | Yes | Yes |
| Direct and mixing heating circuits | No | Yes | Yes |
| Two mixing heating circuits | No | No | Yes |
| Heating of sanitary water | Yes | Yes | Yes |
| Switching between direct heating circuit and domestic water heating | Yes | Yes | Yes |
| Circulation of sanitary water | Yes | Yes | Yes |
| Automatic switching between heat sources | No | No | Yes |
| Control of the riser temperature constant | Yes | Yes | Yes |
| One-step filling of the feeder | No | No | Yes |
| REGULATING HEAT SOURCES | |||
| Solid fuel boiler | Yes | Yes | Yes |
| Solid fuel boiler with pellet burner | No | No | Yes |
| Liquid fuel boiler | Yes | Yes | Yes |
| Liquid fuel boiler with two-stage burner | Yes | Yes | Yes |
| Combined boiler | No | No | Yes |
| Gas-flow boiler | No | No | Yes |
| Heat pump | No | No | Yes |
| The repository | Yes | Yes | Yes |
| Heating with electricity | Yes | Yes | Yes |
| Solar collectors | No | Yes | Yes |
| HEATING OF DOMESTIC WATER | |||
| With a primary heating source | Yes | Yes | Yes |
| With heat storage | Yes | Yes | Yes |
| With a solar system | No | Yes | Yes |
| USER FUNCTIONS | |||
| Space heating or cooling according to a timed programme | Yes | Yes | Yes |
| Automatic winter/summer switchover | Yes | Yes | Yes |
| The PARTY function – simple extension of comfort heating | Yes | Yes | Yes |
| ECO function – activating energy-saving mode | Yes | Yes | Yes |
| HOLIDAY function – activating holiday mode | Yes | Yes | Yes |
| Heating of domestic water according to a timed programme | Yes | Yes | Yes |
| One-off – immediate hot water heating | Yes | Yes | Yes |
| BOOST function for intensive space heating | Yes | Yes | Yes |
| Screed drying function | Yes | Yes | Yes |
| HEATING SYSTEM PROTECTION | |||
| Legionella protection (for regulated energy source) | Yes | Yes | Yes |
| Overheating protection for the storage tank | Yes | Yes | Yes |
| Boiler overheating protection | Yes | Yes | Yes |
| Protection against freezing of collectors | No | Yes | Yes |
| Forced pump switch-on at maximum collector temperature | No | Yes | Yes |
| Switching off the collectors when the safety temperature is exceeded | No | Yes | Yes |
| Protecting the solar system when the collectors overheat | No | Yes | Yes |
| Overheating protection for the storage tank | No | Yes | Yes |
| Reverse cooling of the storage tank to the desired temperature | No | Yes | Yes |
| Periodic start-up of pumps and mixing valves during inactive periods | Yes | Yes | Yes |
| A COMPREHENSIVE OVERVIEW OF THE HEATING SYSTEM'S OPERATION | |||
| Graphical display of temperatures by day for the last week | Yes | Yes | Yes |
| Detailed display of temperatures for the current day | Yes | Yes | Yes |
| Notifications of activated safety functions and system fault warnings | Yes | Yes | Yes |
| Possibility to simulate sensors and analyse system performance | Yes | Yes | Yes |
| REMOTE ACCESS | |||
| USB connection to a PC | Yes | Yes | Yes |
| Connectivity to the SeltronHome platform, allowing remote control via smartphone or tablet | Yes | Yes | Yes |
| SET-UP AND INSTALLATION | |||
| Wizard for easy and fast device start-up | Yes | Yes | Yes |
| 13 language user interface Languages: ENG, DEU FRE, DUT, POL, SPA, SLV, ITA, CZE, LIT, GRE, HUN, HRV |
Yes | Yes | Yes |
| Setting the operation by selecting the hydraulic scheme | Yes | Yes | Yes |
| The “Help” button for quick settings assistance | Yes | Yes | Yes |
| Graphically configurable time programmes | Yes | Yes | Yes |
| Possibility to simulate system operation | Yes | Yes | Yes |
| Logging and displaying changes to settings | Yes | Yes | Yes |
| Ability to retrieve basic settings in case of loss or unwanted changes | Yes | Yes | Yes |
| Possibility to programme free outputs | Yes | Yes | Yes |
| Can be mounted on the wall, in the boiler casing or on the boiler jacket using a bracket | Yes | Yes | Yes |
| Easy installation and connection | Yes | Yes | Yes |
| USE | |||
| Regulating liquid fuel boilers | Yes | Yes | Yes |
| Controlling a radiator space heating system | Yes | Yes | Yes |
| Controlling the underfloor heating or cooling system | Yes | Yes | Yes |
| Controlling a convector heating or cooling system | Yes | Yes | Yes |
| Controlling a wall or ceiling heating or cooling system | Yes | Yes | Yes |
| Heating of sanitary water | Yes | Yes | Yes |
| TECHNICAL CHARACTERISTICS | |||
| Number of preset hydraulic schemes | 7 | 17 | 52 |
| Number of room units | 2 | 2 | 2 |
| Number of mechanical relays | 7 | 8 | 9 |
| TECHNICAL DATA | KXD10B |
|---|---|
| Illuminated graphic display | Yes |
| Operating hours counter | Yes |
| Weekly programme hour | Yes |
| Integrated STB thermal fuse | Yes |
| Connection voltage | 230 V ~ , 50 Hz |
| Own consumption | 4,5 W |
| Standby power consumption | Maximum 0,5 W |
| Number of entrances | 8 x temperature sensor (Pt 1000) |
| Number of outputs | 7 x mechanical 2 x PWM or analog 0-10 V (Y2) |
| Relay outputs | 4 (1) A ~, 230 V ~ |
| Triac output | 1 (1) A ~, 230 V ~ |
| Clock power supply | Battery CR2032 (Li-Mn) 3 V |
| Time display accuracy | +/- 1 s (24 h) at 20 °C |
| Degree of protection | IP20 to EN 60529 |
| Safety class | II to EN 60730-1 |
| Type of operation | 1B to EN 60730-1 |
| Type of temperature sensors | Pt1000 or KTY10 |
| Type of operation | 3-point PID |
| Housing material | ASA+PC – thermoplastic |
| Permissible ambient temperature | 5 ÷ 40 °C |
| Storage temperature | -20 °C ÷ +65 °C |
| Weight | 1070 g |
| Number of pieces per packing unit | 6 pieces |
| Dimensions (W × H × D): 211 x 96 x 53 ( 58) mm | 
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| Electrical connection | 
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