TECH CONTROLLERS EU-19 Controllers for CH Boilers Installation Guide

TECH CONTROLLERS EU-19 Controllers for CH Boilers

Product Information

Specifications

• Product Name: Installation Controllers EU-19, 20, 21
• Manufacturer: Tech Controllers
• Power Supply: 230V 50Hz
• Pump Output Load: 1 A
• Temperature Setting Range: 25°C – 85°C
• Temperature Measurement Accuracy: +/- 1°C
• Dimensions: [mm] (specific dimensions not provided)

Product Usage Instructions

Installation

1. Ensure the power supply is disconnected before starting the installation process.
2. Mount the Installation Controllers in a suitable location with proper ventilation and access for maintenance.
3. Connect the power supply according to the specified voltage and frequency requirements.
4. Follow the wiring diagram provided in the user manual to connect the pump and temperature sensors.

Operation

1. Power on the Installation Controllers after completing the installation.
2. Set the desired temperature within the specified range using the temperature setting controls.
3. Monitor the temperature readings on the display and ensure they are accurate.
4. Adjust the temperature settings as needed based on the requirements of your system.

Maintenance

1. Regularly check the connections and wiring for any signs of damage or wear.
2. Clean the Installation Controllers periodically to prevent dust accumulation.
3. Test the accuracy of temperature measurements using a calibrated thermometer.
4. Contact customer support for any troubleshooting or maintenance issues.

FAQ

• Q: What is the power supply requirement for Installation Controllers EU-19, 20, 21?
  A: The power supply required is 230V at 50Hz.

• Q: What is the temperature setting range for these controllers?
  A: The temperature setting range is from 25°C to 85°C.

• Q: How can I ensure accurate temperature measurements?
  A: Regularly calibrate the temperature sensors and check for any deviations in readings.

ABOUT US

• Our company manufactures microprocessor devices for consumer electronics. We are the largest Polish manufacturer of controllers for CH boilers fired with solid fuels. We have been trusted by the leading CH boiler companies in Poland and abroad. Our devices are characterized by the highest quality and reliability, confirmed by many years of experience.
• We specialize in designing and production of controllers for CH boilers fired with coal, fine coal, pellet, wood and biomass (oats, corn, dried seeds). Apart from that, we also manufacture regulators for refrigeration industry, solar systems, sewage treatment plants, mushroom farms, three- and four-way valves as well as room regulators and scoreboards for sports playfields.
• We have already sold hundreds of thousands of various controllers and we are successfully expanding our offer, with the customer satisfaction being our top priority. The quality management system ISO 9001 and a number of certificates confirm the highest quality of our products.
• The history of our company are, first of all, the people who create it, their knowledge, experience, involvement and persistence. Our plans for the future include maintaining good relations with our customers, acquiring new customers and developing new, high-quality products.

Installation controllers

EU-19, 20, 21
PUMP CONTROLLERS

• Functions
  CH pump control

• Equipment
  CH temperature sensor

• EU-19

  • anti-stop function
  • potentiometer for setting the desired temperature

• EU-20
  potentiometer for setting the desired temperature

• EU-21

  • possibility of working as a thermostat
  • anti-stop function
  • anti-freeze function
  • possibility to set the pump activation temperature and the minimum deactivation temperature: -9˚C
  • LED display

EU-21 DHW, EU-21 BUFFER
DHW & BUFFER PUMP CONTROLLERS

• Functions
  • DHW pump control
  • anti-stop function
  • anti-freeze function
  • control of the voltage-free output
  • possibility of defining pump activation delta
  • protection against DHW tank cooling
• Equipment
  • LED display
  • two temperature sensors
• Principle of operation
  • EU-21 DHW regulator is a multi-purpose controller equipped with two temperature sensors, intended for controlling DHW tank pump. The controller activates the pump when the temperature difference between the two sensors exceeds set value (T1-T2 ≥ Δ ), provided that T2 ≥ Minimum threshold of pump activation.
  • The pump is deactivated when T2 ≤ T1 + 2°C or when T1 < Minimum threshold of pump activation – 2°C (constant hysteresis value) or when T2 reaches the set value. Key: T1 – CH boiler temperature T2 – DHW tank temperature (buffer).
  • It prevents unnecessary pump operation as well as unintended cooling down of the DHW tank when the water supply temperature drops. This, in turn, helps to save electricity and prolongs the life of the pump. Consequently, the device is more reliable and economical.
  • EU-21 DHW regulator is equipped with a system preventing pump stalling during long standstill. The pump is switched on for 1 minute every 10 days. Additionally, the controller is equipped with anti-freeze function. When the temperature of CH boiler sensor or DHW tank sensor drops below 6°C, the pump is activated permanently. It is switched off when the circuit temperature reaches 7°C.

EU-11 DHW CIRCULATION REGULATOR

• Functions
  • controlling circulating pump operation
  • monitoring the pre-set temperature in a heating circuit
  • smart control of the circulation system
  • protection against overheating (DHW pump activation)
  • anti-stop function
  • adjustable pump operation time
• Equipment
  • 2 temperature sensors (one for circulation circuit and one for tank)
  • flow sensor
  • LCD display

Principle of operation
DHW circulation regulator is intended for controlling DHW circulation to suit individual user’s needs. In an economical and convenient way, it reduces the time needed for hot water to reach the fixtures. It controls the circulating pump which, when the user draws water, accelerates the flow of hot water to the fixture, exchanging the water there for hot water at the desired temperature in the circulation branch and at the tap. The system monitors the temperature set by the user in the circulation branch and it activates the pump only when the pre-set temperature drops. Thus it does not generate any heat loss in the DHW system. It saves energy, water and equipment in the system (e.g. circulation pump). The circulation system operation is activated again only when hot water is needed and at the same time the pre-set temperature in the circulation branch drops. The device regulator offers all the functions necessary to adjust to various DHW circulation systems. It may control hot water circulation or enable the circulating pump in case of heat source overheating (e.g. in solar heating systems). The device offers pump anti-stop function (protecting against rotor lock) and adjustable working time of circulation pump (defined by the user).

EU-27i, EU-427i
CONTROLLER FOR TWO/THREE PUMPS

• Functions (EU-27i)
  • CH pump control
  • control of additional DHW or floor pump
  • anti-stop function
  • anti-freeze function
• Equipment (EU-27i)
  • LCD display
  • CH temperature sensor T1
  • additional pump temperature sensor T2
  • control knob
  • casing designed for mounting on the wall

Principle of operation
EU-27i regulator is intended to control the operation of CH circulation pump and of the additional pump (DHW or floor pump). The controller’s task is to switch the CH pump on if the temperature exceeds the threshold value of activation and to switch the pump off when the boiler cools down (e.g. as a result of burnout). For the second pump, apart from activation temperature, the user adjusts the set temperature up to which the pump will operate.

• Functions (EU-427i)
  • time-based or temperature-based control of the three pumps
  • anti-stop function
  • anti-freeze function
  • possibility of setting any pump priorities
  • possibility of connecting a room regulator  with traditional communication ( a two-sta- te regulator – ON/OFF)
• Equipment (EU-427i)
  • LCD display
  • three temperature sensors
  • control knob
  • casing designed for mounting on the wall

Principle of operation
EU-427i regulator is intended to control the operation of three pumps. The controller’s task is to switch the pumps on (temporarily if the temperature exceeds the threshold value of activation) and off when the boiler cools down (e.g. as a result of burnout). If a selected pump is not a CH pump, turning off can be realized by signal from room regulator. Apart from activation temperature, the user adjusts the set temperature up to which the pump will operate. There is a possibility to set any priorities of the pumps’ operation.

EU-i-1, EU-i-1 DHW
MIXING VALVE CONTROLLER

• Functions
  • smooth control of a three- or four-way valve
  • control of valve pump operation
  • control of additional DHW pump (EU-i-1 DHW)
  • control of voltage-free output (EU-i-1 DHW)
  • possibility of controlling two other valves using additional modules EU-431n or i-1
  • compatible with modules EU-505 and WIFI RS – eModul application
  • return temperature protection
  • weather-based and weekly control
  • compatible with room regulators using RS or two-state communication
• Equipment
  • LCD display
  • CH boiler temperature sensor
  • return temperature sensor and valve temperature sensor
  • DHW temperature sensor (EU-i-1 DHW)
  • external sensor
  • wall-mountable housing

Principle of operation
The i-1 thermoregulatory is designed to control a three-way or four-way mixing valve with the possibility of connecting additional valve pump. Optionally, this controller may cooperate with two modules, enabling the user to control up to three mixing valves. The i-1 DHW controller is designed to operate a three-way or four-way mixing valve with the option of connecting a valve pump and additional DHW pump as well as a voltage-free contact for a heating device.

EU-i-1m
MIXING VALVE MODULE

• Functions
  • smooth control of a three- or four-way valve
  • control of valve pump operation
  • cooperating with main controllers using RS communication
• Equipment
  • CH boiler temperature sensor
  • valve temperature sensor
  • return temperature sensor
  • external sensor
  • wall-mountable housing

Principle of operation
EU-i-1m expanding module is intended for controlling a three- or four-way valve by connecting it to the main controller.

EU-i-2 PLUS
INSTALLATION CONTROLLER

INSTALLATION CONTROLLERS
Modern low-energy houses require several alternative sources of heat. However, if you want the house to generate real savings, you need one system that will manage them. TECH heating controllers allow for efficient control of the heating system including multiple heat sources (e.g. solar collectors and CH boiler), thereby limiting energy consumption.
Incorporating controllers into the heating system makes it easy for the user to operate all devices, helps to save time and money as well as ensures the best thermal comfort.

• Functions
  • smooth control of two mixing valves
  • control of DHW pump
  • two configurable 0-10V outputs
  • control of the cascade of up to 4 heating devices ability of adjusting parameters of heating device via OpenTherm communication
  • return temperature protection
  • weekly control and weather-based control
  • two configurable voltage-free outputs
  • two configurable voltage outputs
  • cooperation with two two-state room regulators
  • compatible with RS room regulators
  • compatible with EU-505 module and WIFI RS module
  • control via eModul app
  • possibility of controlling two additional valves using additional modules EU-i-1 or EU-i-1-m

Equipment

• LCD display
• CH boiler temperature sensor
• DHW temperature sensor
• valve temperature sensors
• return temperature sensor
• external sensor
• wall-mountable housing

EU-i-3 PLUS
INSTALLATION CONTROLLER

PRINCIPLE OF OPERATION
Installation controllers allow simultaneously connection of several heating sources (up to three mixing valves and two additional mixing valves) and several room regulators (thanks to them various temperature levels can be programmed in different rooms)
In addition, installation controllers made by TECH allow to connect additional modules such as Ethernet module or GSM module. Controlles are equipped with big touchscreen and USB port for updates

Functions

• smooth control of three mixing valves
• control of DHW pump
• solar system control
• control of solar pump via PWM signal
• two configurable 0-10V outputs
• control of the cascade of up to 4 heating devices
• ability of adjusting parameters of heating device via OpenTherm communication
• return temperature protection
• weekly control and weather-based control
• two configurable voltage-free outputs
• two configurable voltage outputs
• cooperation with three two-state room regulators
• compatible with RS room regulators
• compatible with EU-505 module and WIFI RS module
• control via eModul app
• possibility of controlling two additional valves using additional modules EU-i-1 or EU-i-1-m

Equipment

• LCD display
• CH boiler temperature sensor
• valve temperature sensors
• return temperature sensor
• solar collector temperature sensor
• external sensor
• wall-mountable housing

EU-RI-1 DEDICATED FOR I-2, I-3, I-3 PLUS ROOM REGULATOR WITH RS

COMMUNICATIOM

Functions

• controlling room temperature
• day/night program,
• manual mode
• additional control based on floor temperature
• hysteresis 0,2 – 4°C,
• wired communication,

Equipment

• built in temperature sensor,
• temporary display backlight,
• RS communication,

EU-280, EU-281
ROOM REGULATOR WITH RS COMMUNICATION

available in black or white casing (EU-281, EU-281C)

Functions

• control of the room temperature
• control of the central heating boiler temperature
• control of the DHW temperature
• control of the mixing valves temperature
• outside temperature monitoring
• weekly-based heating mode
• alert
• parental lock
• displaying current room and CH boiler temperature
• possibility of updating software via USB port (from version 4.0)

Equipment EU-280 i EU-281

• large, clear, colour touch 4,3″-LCD display
• front panel made of 2mm glass (EU-281)
• built-in room sensor
• power supply 12V DC
• RS communication cable for the boiler controller
• USB port

Principle of operation
The room regulator allows convenient temperature control of the room, CH boiler, water tank and the mixing valves without the need to go to he boiler room. The regulator requires cooperation with TECH main controller with RS communication. A large clear colour touch screen makes it easy to read and change the controller parameters.

EU-2801 WiFi
ROOM REGULATOR WITH OPENTHERM COMMUNICATION

Functions

• smart control of the room set temperature
• smart control of the CH boiler set temperature
• changing the room set temperature basing on the outside temperature (weather-based control)
• outside temperature view
• WiFi communication
• weekly-based heating program for room and boiler
• displaying alerts from heating device
• acces to temperature charts of heating device
• alert-clock
• parental lock

Equipment

• large, clear, colour-touchscreen
• bulit-in room sensor
• flush-mounted

Principle of operation
Use of room regulator provides intelligent control of the desired room temperature by automatically adjusting the proportional boiler temperature. Regulator can adjust the parameters of control algorithm. The device is compatible with OpenTherm/plu (OT+) and OpenTherm/lite (OT-) protocol. Large, clear, colour-touchscreen, alows convinient control and modulation of the regulator parameters. Easy installation on the wall, aesthetic look, touchscreen and reasonable price are another advantages of the controller.

EU-WiFi-OT
ROOM REGULATOR WITH OPENTHERM COMMUNICATION

Function

• smart control of the room set temperature
• smart control of the CH boiler set temperature
• changing the room set temperature basing on the outside temperature (weather-based control)
• access to temperature charts of heating device
• outside temperature view
• weekly-based heating program for room and boiler
• displaying alerts from heating device
• OpenTherm or two-state communication
• WiFi communication

Equipment

• large display,
• wall mounted
• room regulator EU-R-8b in set
• wired outdoor temperature sensor EU-291p in set,

Principle of operation
Use of room regulator provides intelligent control of the desired room temperature by automatically adjusting the proportional boiler temperature. Regulator can adjust the parameters of control algorithm. The device is compatible with OpenTherm/plu (OT+) and OpenTherm/lite (OT-) protocol.

EU-505, WiFi RS INTERNET MODULE

Functions available with the latest controller versions

• remote control via the Internet – emodul.pl
• possibility of monitoring all connected devices
• possibility of editing all parameters of the main controller (in the menu structure)
• possibility of viewing the temperature history
• possibility of viewing the event log (alerts and parameter changes)
• possibility of assigning any number of passwords (to access menu, events, statistics)
• possibility of editing the pre-set temperature via a room regulator
• possibility of controlling many modules via one user account
• e-mail notification in case of alerts
• optional Text message notification in case of alerts (subscription necessary)

Equipment

• power supply unit 9V DC
• RS Splitter
• RS communication cable for the boiler controller

Functions available with older controller versions

• remote control of the CH boiler operation via the Internet or a local network- zdalnie.techsterowniki.pl
• graphic interface offering animations on the home computer screen
• possibility of changing the pre-set temperature values for both the pumps and the mixing valves
• possibility of changing the pre-set temperatures via a room regulator with RS communication
• possibility of viewing the sensor temperatures
• possibility of viewing the history and the alert types
• mobile version available at Google Play

EU-517
2 HEATING CIRCUITS MODULE

Function

• controlling of two pumps
• cooperation with two room regulators
• controlling of voltage free output

Principle of operation
The module may control two circulation pumps. When the room regulator sends a signal informing that the room temperature is too low, the module activates an appropriate pump. If the temperature of any circuit is too low, the module activates the voltage-free contact. If the module is used to control the floor heating system, an additional bimetallic sensor should be installed (on the supply pump, as close to the CH boiler as possible) -thermal overload relay. If the alarm temperature is exceeded, the sensor will disable the pump in order to protect the fragile floor heating system. If EU-517 is used to control standard heating system, the thermal overload relay may be replaced with a jumper -join the input terminals of the thermal overload relay. .

EU-401n PWM
SOLAR COLLECTOR CONTROLLER

Functions EU-401n

• control of the pumps
• supervision and handling of the solar system operation
• protection against overheating and freezing of the collector
• the possibility of connecting EU-505 ETHERNET/EU-WIFI RS module
• the possibility of connecting additional device:
  • circulation pump
  • electric heater
  • sending a signal to the CH boiler to fire it up

Equipment

• large, clear LCD display
• collector temperature sensor
• heat accumulator temperature sensor
• casing made of high quality materials resistant to high and low temperatures

Principle of operation
Thermoregulatory are intended for operation of solar collector systems. This device controls the main (collector) pump on the basis of temperature measurement on the collector and in the accumulation tank. There is an optional possibility of connecting additional devices such as a mixing pump or an electric heater as well as to send a signal to the CH boiler to fire it up. Control of the circulation pump and sending the firing-up signal to the CH boiler is possible directly from the controller and in the case of the heater control an additional signal relay is necessary

EU-402n PWM
SOLAR COLLECTOR CONTROLLER

Functions

• control of the pump via PWM signal
• supervision and handling of the solar system operation for 17 configurations of the system
• protection against overheating and freezing of the collector
• the possibility of connecting EU-505 ETHERNET/EU-WIFI RS module
• the possibility of connecting additional device:
  • circulation pump
  • electric heater
  • sending a signal to the CH boiler to fire it up

Equipment

• large, clear LCD display (EU-402n PMW)
• collector temperature sensor
• heat accumulator temperature sensor
• casing made of high quality materials resistant to high and low temperatures

EU-STZ-120 T
MIXING VALVE ACTUATOR

Functions

• control of three-way or four-way valve
• manual control possible with pull-out knob
• rotation time: 120s

Equipment

• adapters and mounting screws for valves from companies such as ESBE, Afriso, Herz, Womix, Honeywell, Wita
• connection cable length: 1.5 m

Principle of operation
The STZ-120 T actuator is used to control three-way and four-way mixing valves. It is controlled by a 3-point signal.

STZ-180 RS
MIXING VALVE ACTUATOR

Functions

• Control of three-way or four-way valve
• Rotation time: 180s
• czas obrotu 180s
• Display of current temperature/valve opening percentage/set temperature
• Autonomous operation capability
• RS communication with main controller (EU-i-1, EU-i-2 PLUS, EU-i-3 PLUS, EU-L-7e, EU-L-8e, EU-L-9r, EU-L-4X WiFI, EU-L-X WiFi, EU-L-12)
• Built-in low-voltage contact for valve pump control

Equipment

• Adapters and mounting screws for valves from companies such as ESBE, Afriso, Herz, Womix, Honeywell, Wita
• Temperature sensor included
• 12V power supply included

Principle of operation
The STZ-180 RS actuator is used to control three-way and four-way mixing valves.

STI-400
INVERTER

Principle of operation
An inverter is a controller that allows devices (typically boilers) to operate in the event of a mains power outage. It functions similarly to typical UPS systems, with the difference being that instead of cells, energy is stored in a battery. While the target device is connected to the inverter and powered by the mains, the battery is kept in standby. In the event of a mains power outage, the controller switches to inverter mode, meaning the energy stored in the battery is converted to 230V, and the device can continue to operate. The controller works with two types of batteries, gel and acid, for which separate standby algorithms are written.

ul. Biała Droga 31, 34-122 Wieprz
tel. +48 33 330 00 07, fax. +48 33 845 45 47 [email protected] , www.tech- controllers.com Printed 02/2024

References

• eModul.pl
• Intelligent heating, smart heating solutions - manufacturer of controllers | TECH Controllers
• Logowanie

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