KXD20
Technical specification Tehnični_list_KXD_EN.pdf
Guidance KXD10B-KXD10-KXD20_ENG_DEU.pdf
Photo KXD20-front.tif

Presentation

KXD controllers are the new generation of powerful furnace and weather compensated controllers, which also provide the regulation of the room heating and hot water production in addition to the regulation of liquid fuel furnaces. They are used with liquid fuel furnaces. They allow for the regulation of one or two heating circuits, switching between heating sources, and the protection of the return line during the charging of the supply device. They are used with liquid fuel furnaces.

 

Application

  • Regulating liquid fuel boilers
  • Regulating radiator space heating system
  • Regulating floor heating or cooling system
  • Regulating convector heating or cooling system
  • Regulating wall or ceiling heating or cooling system
  • Hot water preparation

 

Capacities

  • it regulates the boiler and space heating;
  • it features all the safety functions for boiler protection;
  • it can be mounted on the wall, in the boiler housing or with the help of a console to the boiler coat;
  • 52 preset hydraulic circuit diagrams;
  • space heating or cooling according to the time program;
  • hot water heating according to the time program;
  • solar hot water heating;
  • regulating heating systems with a hot water buffer tank;
  • the possibility of connecting 2 room units;
  • BOOST function for space heating;
  • built-in solar heating system protection features;
  • 14 language user interfaces;
  • startup wizard for an easy and quick device startup;
  • operational diagnostics featuring error and excessive temperature warnings;
  • remote control with the help of SeltronHome system.

PRODUCT PERFORMANCE COMPARISONKXD10BKXD10KXD20
APPLICATION
Liquid fuel boiler control   
Radiator room heating system control   
Floor heating or cooling system control   
Convector heating or cooling system control   
Wall or ceiling heating or cooling system control   
Domestic hot water heating   
TECHNICAL CHARACTERISTICS
No. of preset hydraulic schemes71752
No. of room units222
No. of mechanical relays789
No. of solid-state relays11
No. of temperature sensor inputs888
No. of analogue outputs (0÷10 V or PWM) for the control of the circulation pump or an energy source222
BUS option – the interconnection of KXD controllers and connection with other Seltron controllers   
REGULATION OF HEATING SYSTEMS
Heating system with radiators   
Floor heating system   
Convector heating system   
Wall and ceiling heating systems   
Domestic hot water heating systems   
HEATING CIRCUITS CONTROL
Direct heating circuit   
Mixing heating circuit   
Direct and mixing heating circuit  
Two mixing heating circuits 
Domestic hot water heating   
Switchover between direct heating circuit and domestic hot water heating   
Domestic hot water circulation   
Automatic switchover between heat sources 
Control of the supply line constant temperature   
Single-stage storage tank loading 
HEAT SOURCE CONTROL
Solid fuel boiler   
Solid fuel boiler with a pellet burner 
Liquid fuel boiler   
Liquid fuel boiler with a two-stage burner   
Combined boiler 
Gas flow boiler 
Heat pump 
Storage tank   
Auxiliary heating with electricity   
Solar collectors  
DOMESTIC HOT WATER HEATING
With a primary heating source   
With a storage tank   
Using a solar system  
USER FUNCTIONS
Room heating or cooling according to the time programme   
Automatic winter/summer mode switchover   
PARTY function – activation of the comfort operation mode   
ECO function – activation of the economy operation mode   
HOLIDAY function – activation of the operation mode during the holiday season   
Domestic hot water heating according to the time programme   
One-time domestic hot water heating   
BOOST function for intense room heating   
Function for screed drying   
HEATING SYSTEM PROTECTION
Anti-legionella protection (for a controlled energy source)   
Storage tank overheating protection   
Boiler overheating protection   
Collector frost protection  
Forced pump start at the highest collector temperature  
Switching off of the collectors when the safety temperature has been exceeded  
Solar system protection when collectors are overheating  
Storage tank recooling to the desired temperature  
Periodic starting up of pumps and mixing valves during a period of inactivity   
A COMPREHENSIVE OVERVIEW OF THE HEATING SYSTEM OPERATION
Graphic display of temperatures according to days of the last week   
Detailed display of temperatures for the current day   
Notifications on the activated protection functions and warnings about system failures   
Possibility to simulate sensors and analyse the system operation   
REMOTE ACCESS
Possibility of USB connection to a PC   
Connectivity to the SeltronHome platform providing remote control using a smartphone or tablet   
SETUP AND INSTALLATION
Wizard for an easy and quick device start-up   
13-language user interface
Languages: ENG, DEU FRE, DUT, POL, SPA, SLV, ITA, CZE, LIT, GRE, HUN, HRV
   
Setting up the operation by selecting the hydraulic scheme   
“Help” button for quick help with the setup   
Graphically adjustable time programmes   
Option to simulate the system operation   
Logging and display of changes made to the setup   
Option for retrieval of the basic setup in the event of data loss or unwanted changes   
Option for programming free outputs   
It can be installed on the wall, in the boiler housing or to the external boiler panels by means of a console   
Simple installation and connection   

Technical specificationsKXD20
Backlit graphic displayyes
Operating hours meteryes
Weekly program timer yes
Integrated STB thermal protectionyes
Connection voltage230 V~, 50 Hz
Own consumption 4.5 W
Energy consumption in the standby modeMax. 0.5 W
No. of inputs8 pcs temperature sensor (Pt 1000)
No. of outputs9 pcs mechanical
1 pc electronic
2 pcs PWM or analogue 0÷10 V
(Y1, Y2)
Relay outputs4 (1) A~, 230 V~
Triac output1 (1) A~, 230 V~
Clock power supplyBattery CR2032 (Li-Mn) 3 V
Clock accuracy+/-1 s (24 h) at 20 °C
Degree of protectionIP20 according to EN 60529
Safety classII according to EN 60730-1
Operation mode1B according to EN 60730-1
Type of temperature sensorsPt1000 or KTY10
Operation mode3-point PID
Housing materialASA+PC – thermoplastic
Permissible ambient temperature5÷40 °C
Storage temperature-20÷65 °C
Product weight1.080 g
No. of pieces in the packaging unit6 pcs
Dimensions
Electrical connection