Heating and hot water controller. Controllers for heating boilers and systems: an overview of models and their functionality. Kontar controllers for heating and hot water systems
: appearance, housing, front panel and reliable internals, differs only in special software with PID control. TRC-03 GVS (hereinafter referred to as the temperature controller, differential controller, temperature controller or device) is designed to operate in hot water systems[DHW] (e.g. with an indirect heating boiler) and a three-way mixing valve, or for other industrial and technological processes, in which differential thermal control is required from two digital temperature sensors (DTC or temperature sensors), in order to maintain temperature hot water or other liquid in the container [tank, heat exchanger, etc.] at a user-defined level by controlling the servo drive of the three-way mixing valve and the load [for example, pump, heating element, etc.].
Photo 1. Appearance of the controller SEC-03 GVS.
Photo 2. TRC-03 DHW controller in operation.
The device is able to control one circuit of the heating system - two loads simultaneously: circulation pump[maximum active power not more than 270 W]; servo-driven three-way mixing cock (valve)[with a maximum active power of the servo drive not more than 270 W with a supply voltage of 220-230 V with control of 3 positions (00)], for example, V70 and V70F servo drives can be used M.U.T. Meccanica 7.030.00776 (V70 50 230 OO or V70F 100 230 OO) or similar servo drives from other manufacturers ( e.g. ESBE ARA600 series three-point servo drives 230V AC), in order to maintain the target temperature of the coolant at a given level according to the selected weather-dependent curve, with the display of controlled temperatures from thermal sensors on the built-in LED indicator.
Information on the weather-dependent controller TRC-03 DHW
Temperature controller features
- PID control;
- installation in a standard housing on a DIN rail;
- a modern microcontroller is used;
- digital thermal sensor for measuring the temperature of the coolant;
- digital temperature sensor for measuring the temperature of hot water;
- digital LED indication;
- circulation pump control ;
- control of a servomotor of a mixing tap [valve] SPDT with a supply voltage of 220-230 V;
- triac switches are used to control loads ( electromagnetic relays are not used), which improves the durability and reliability of the device;
** The manufacturer reserves the right to make changes to the packaging, appearance of the temperature controller, as well as to its circuitry and operating modes without compromising the technical characteristics of the device.
Some technical characteristics of the device
- Rated supply voltage: ~220 [+/-5%] V;
- Rated frequency: 50Hz;
- Maximum switching power of resistive load (low power output 1): 270 W;
- Maximum switching power of active load (low power output 2): 270 W;
- Temperature sensor type: external, digital;
- Number of channels: two;
- Accuracy of temperature measurement by temperature sensor: 0.1 o C;
- Temperature display resolution: 1 o C;
- Range of measured temperatures: -40...+99 o C;
- Temperature of liquids for display on the indicator: 0...+99 o C;
- Indicator type: LED;
- Control type: digital (electronic) by means of a microcontroller;
- Power consumption of the thermostat (without taking into account the consumption of loads connected to it): no more than 5 W;
- Mounting type: DIN-rail;
- Width of the tremor regulator housing: about 70 mm;
- Degree of protection: IP20;
- Ambient air temperature in the room where the thermostat is installed: 0...+40 o C;
- Weight: about 120 grams;
- Compatible servos :V70 and V70F MUT Meccanica article no. 7.030.00776 (V70 50 230 OO or V70F 100 230 OO); ESBE series ARA 600: ARA 661, ARA 671, ARA 651, ARA 662, ARA 691, ARA 672, ARA 692 ...; WATTS (Water Technologies): 3-way mixing valves V3GB with actuator M60W; MEIBES: Meibes plus ST10/230; VALTEC: VT.M106.0.230; Vexve AM: part numbers 1920751, 1920750 and 1920749.
Scheme of the hot water supply system with a thermostat TRC-03 GVS
Photos from a real facility where the TRC-03 GVS temperature controller is installed and used to automate the hot water supply system.
 Photo 1. Controller TRC-03 DHW, displaying hot water temperature. |
 Photo 2. Servo drive V70F MUT Meccanica in operation with a thermostat TRC-03 GVS. |
 Photo 3. V70 MUT Meccanica servo and temperature sensor in conjunction with a thermostat. |
 Photo 4. Installing the temperature sensor in the sleeve and pouring thermal paste. |
Automation of heating and hot water systems is necessary to constantly maintain the desired temperature of the coolant and water without direct human intervention.
Benefits of using an automation system
- Controllers for heating and hot water systems allow you to adjust temperature regime in the heating circuit according to the heating schedule, which depends on the air temperature or on the temperature of the direct water from the main;
- automation for water supply maintains the temperature of hot water supply at a given level;
- Controllers for heating and hot water systems help maintain the desired temperature of heating and hot water systems and change it in accordance with a given schedule: day / night mode, working / weekends and according to an individual schedule set by the user;
- The heating system controller helps to maintain the temperature regime in the return pipeline according to a given schedule in order to avoid penalties for exceeding it;
- The feeding of the heating circuit is automated according to the readings of the pressure sensor in the heating network;
- Automatic transfer of the heating system between the seasons "Winter / Summer" can be configured, with periodic automatic scrolling of the circulation pumps;
- Overheating during a thaw is excluded, energy resources are saved;
- The wear of pumps is reduced by optimizing the algorithm of the system;
- Alarm notification signals are configured in accordance with the readings of temperature and pressure sensors in networks, idling, electrical protection, etc.
KONTAR controllers for heating and hot water systems
Controllers for heating and hot water systems "Kontar" are freely programmable controllers that are combined into a single network via the RS485 interface, which makes them convenient for creating an extensive geographically distributed network. For programming controllers, the Congraf design environment is used, in which an algorithm is created in the FBD language, which is easy to master for any engineer who is not a programmer. Programs for visualization of processes in the heating and hot water systems allow you to monitor the parameters in real time, locally or via the Internet.
Installation of heating and hot water controllers reduces energy consumption by 30% due to the optimization of the system operation according to an individually developed algorithm.
Controllers "Kontar" are suitable for automation of projects of any complexity and scale from small structures to complexes multi-storey buildings. Expansion of the system does not require stopping existing controllers. Heating and hot water systems are also integrated with other building systems: security systems, energy metering, etc.
In the line of programmable controllers "Kontar" for the automation of heat points and heating and water supply systems, the following devices are recommended:
- Programmable controllers - MC8, MC12,
- Expansion module (input-output module) - MA8.
Development of projects for automation of heating and hot water systems
For heat points MZTA offers a library of algorithms. If there are no suitable algorithms in it, then they can be developed independently. The development of algorithms is carried out in a special CONGRAF environment, and then, using the CONSOLE software tool, they are loaded into a programmable controller.
TYPICAL PROJECTS of automation of heating points
A typical control loop for a heat point based on a programmable controller usually includes the following functional controls:
- sensors: temperature, pressure, unauthorized access (optional);
- controls for issuing commands in manual mode;
- means of visualization of object operation modes;
- executive devices:
- low-power (valve actuators);
- powerful (pumps).
- functional controls used in the technical solution;
- features of the heating object:
- heated area,
- number of storeys
- spatial configuration of the location of pipelines and radiators in the heating system of the facility;
- the presence of special zones with special thermal conditions.
Table 1 lists the programmable controller outputs that are used to control the actuators in the control loop heating point.
Table 1 Outputs of programmable controllers for controlling actuators
| MC8 | Discrete, "Electronic key" (open collector - MS8-301) | 8 | Not | 48V, 0.15A (DC) |
| Discrete, "Electronic key" (optocoupler triac - MS8-302) | 8 | There is | 48V, 0.8A (AC) | |
Analog:
| 2 | Not | 0 A - 0.02 A | |
| 1 | There is | |||
| MC12 | "Dry contact" | 8 | There is | Up to 250 A AC current Up to 3 A AC current |
Analog:
| 4 | Not | 0 A - 0.02 A | |
| RS485 port (Modbus RTU protocol) | 1 | There is | ||
| MA8 | "Electronic key" (optocoupler triac) | 2 | There is | 36V, 0.1A (AC) |
Analog:
| 2 | Not | 0 A - 0.02 A |
Additional components of spark-extinguishing circuits intended for installation on a connected load are included in the installation kit of supplied programmable controllers "Kontar".
Depending on the specifics of a particular solution, control signals can be sent to actuators via:
- analog output 0 V - 10 V;
- discrete output:
- connected directly to the actuator;
- connected to the power key, which in turn controls the power device;
- RS485 port connected to the actuating device via the Modbus RTU protocol.
- set in the real-time scheduler (embedded in the programmable controller),
- manual control signals (built-in or plug-in toggle switches, buttons),
- logical sensor signals (presence sensor, temperature sensor),
- analog sensor signals (temperature, pressure),
- command from the control room,
- command from the master controller.
Ports and inputs of programmable controllers that can be used in the substation control algorithms are shown in Table 2.
Table 2. Ports and inputs of programmable controllers for solving the tasks of managing a heating substation
| MC8 | MS12 | MA8 | |||||||||||||||||
| RS232 port (for communication with upper level) / number of ports | +/1 | + | - | ||||||||||||||||
| USB (for upper level communication) / number of ports | +/1 | +/1 | - | ||||||||||||||||
| RS485 port / number of ports / availability of galvanic isolation from controller circuits | +/2 / yes | +/2 / yes | +/1 / yes | ||||||||||||||||
| Limit maximum value of the measured parameter at the universal analog input for: | |||||||||||||||||||
| up to 50 mA | up to 50 mA | -
| up to 10V | up to 10V | up to 2.5 V | /number of inputs 50 Ohm ÷ 10 kOhm; /eight | 50 Ohm ÷ 10 kOhm; /eight | 50 Ohm ÷ 10 kOhm; /eight | Discrete input (optoelectronic pair) / number of inputs / availability of galvanic isolation from controller circuits | +/4 / yes | +/4 / yes | +/4 / yes |
*Manual switch (Button) | +/4
| +/4
| -
|
|
* When the controller is equipped with a built-in (MD8.102) or remote (MD8.3) control panel.
Discrete inputs of programmable controllers and expansion modules are designed for connecting sensors with discrete outputs in the form of a key (relay, open collector, optocoupler triac, etc.). This solution makes it possible to simplify the coordination of programmer inputs with most types of sensors that transmit information about the measured parameter in a discrete form.
The digital inputs are galvanically separated from the circuits of the controllers/expansion modules.
The measuring function built into the MC8/MC12 programmable controllers and the MA8 expansion modules makes it possible to measure an analog signal depending on the sensor/signal type:
To correctly connect the sensor to the analog input of the programmable controller or expansion module, each input has a configurator in the form of a contact group, on which jumpers are installed. The configurator is located under the cover of the instrument housing. The locations and number of jumpers to be installed are determined by the sensor type and its electrical characteristics. Jumpers are included in the delivery.
Control of heating and hot water systems
Depending on the scale of the task of automating the control of a heating point, the following can be implemented:
- Local control of the substation in the configurations:
- Standalone controller (based on MC8 or MC12).
- Controller network: Master (MC8 or MC12) - Slave (MC12; MC8, MA8).
- Local or remote scheduling lighting control in configurations:
- Single controller (MC8 or MC12)
- Controller network: Master (MC8 or MC12) - Slave (MC12; MC8, MA8)
To organize stationary local control of heating and hot water systems, special control panels equipped with indicators, control buttons and a liquid crystal display can be used:
- MD8.102 – built-in, installed on the body of the MC8/MC12 programmable controller.
- MD8.3 - remote, usually installed on the door of the automation cabinet
The most convenient organization of local control of heating and hot water systems can be implemented on the basis of an external operator console. External WEINTEK remote controls are recommended for installation.
If adjustments to the algorithms are rarely made, and maintenance specialists are few in number, then the use of external control panels can be completely abandoned. Their role can be performed by a wearable laptop, tablet or smartphone connected to the controller directly at the location of the heating point through an access point or via a wired interface (USB, Ethernet, RS232). To provide this possibility, there are special submodules.
Dispatching, or remote access to an object, can be organized both on the basis of wired solutions (Ehternet, Internet) and on the basis of wireless radio technologies, for example, via a GSM modem.
The MC8/MC12 programmable controllers, in accordance with the specified list of critical parameters and events, transmit the relevant data to the supervisory system and/or store them in their internal memory.
www.mzta.ru
Controllers for heating and hot water systems: application patterns and development trends
The word "controller" in translation from English means "regulator" or "control device". According to control theory, this is a device that controls and manages engineering systems and generates control signals for them. Regulators track changes in parameters in the engineering systems of the facility and respond to this change using a set of control algorithms and appropriate settings.
In Ukraine, 10-15 years ago, such devices were used, for the most part, in heating points and occasionally in boiler houses. Their functions were limited, that is, reduced, for example, to the control of one mixing valve or a separate element of the system. In this case, the switching on / off of boilers or pumps was carried out manually. And the schemes themselves were chosen for those controller operation algorithms that could not fully cover all systems of a heating point or boiler house. Therefore, different parts of the system were controlled by separate controllers - control of heating, hot water, pumps, alarms or alarms, etc. All control devices were placed in sufficiently large control cabinets.
To date, the situation has changed dramatically. Now the specialist has the ability to create almost any control scheme in which the controller can be used. Volume software can be quite large because modern devices allows you to store virtually unlimited amounts of information in memory. The speed of data processing has also been significantly increased.
The so-called "stand alone" controllers have become widespread, i.e. preprogrammed controllers. These devices are designed to control individual district heating substations or decentralized systems. AT modern models controllers are no longer one or two control schemes, as before, but 20 or more. And they can simultaneously control boilers on various types fuel, heat pumps, solar systems, hot water boilers, storage tanks and etc.
Similar devices are supplied to the Ukrainian market by various companies, for example, Danfoss (Denmark), Kromschröder (Germany), Honeywell (USA).
The required boiler temperature is calculated by the controller based on the demand for heat from the controlled heating and DHW circuits. Each device can work independently or in local network, which can have multiple controllers at the same time. All parameters, as well as time programs, have presets for each control circuit and allow individual adaptation to the heating system and the requirements of its user.
For example, Smile controllers (Honeywell) (Fig. 1) contain about 20 programs that allow them to be used for 30–40 circuits. The devices can be used locally (with each single controller controlling one to three heating circuits), as well as combined into one system (up to five devices). The controllers have three free inputs and two free outputs for additional control functions. Variations of heating systems are set at the stage of commissioning the system.
Rice. 1. Smile controller
Changes in operating parameters allow a certain level of flexibility in the management of heating systems. Although these controllers have rigid algorithms of operation, they can be adapted to a specific scheme. Suppose the controller controls a mixing circuit consisting of a valve, a pump and two sensors on the supply and return pipelines. When changing certain parameters that are responsible for the mixing valve, you can connect the circulation pump of the hot water supply system to the controller, place temperature sensors in the heat exchanger - and the controller no longer controls the heating system circuit, but fully controls the operation of the DHW system. That is, the same output can be used for different circuit components. Such flexibility is relevant in the reconstruction of premises with the equipment of additional heating circuits, for example, partial replacement radiator heating to "warm floor" or expansion of the DHW system. At the same time, one controller will control the "warm floor" system, radiator heating, boiler and hot water supply system.
It is possible to connect remote modules with indoor air temperature sensors. Plug-in modules have a setting change knob and an Economy/Schedule/Comfort mode switch, a digital display, and duplicate the controller's setting buttons, providing full access and remote control. Individual control of a separate circuit of the heating system from one room is possible. To do this, it is necessary to integrate a wall module into the heating system. suitable model.
Specifications Smile controllers: power consumption - 5.8 VA, operate from a household AC mains. Degree of protection IP 30. Dimensions (W×H×D) – 144×96×75 mm. The case is made of ABS plastic with an antistatic coating. The maximum bus length is 100 m. The device is mounted on the wall using terminal boxes.
Modern controllers are suitable both for creating weather-dependent systems for regulating the temperature of the coolant flow (for example, radiators, convectors), and for systems where it is necessary to maintain a constant temperature of the coolant (for example, underfloor heating systems, or for swimming pools) through mixing circuits, including solar systems.
By using several "stand alone" controllers, you can create a fairly large and complex system control, suitable even for a large public building.
In individual construction, controllers allow organizing systems in which it is possible to use various heat generators, including those using alternative sources energy.
It is practically impossible to create such systems without controllers. After all, all their components have different algorithms and modes of operation. It is advisable to turn on the electric boiler at night, when the electricity tariff is cheaper (with multi-tariff accounting). Or use a heat pump at the same time. During daylight hours, the collectors of the solar system are turned on, and at peak loads on the hot water supply in the morning and evening, one cannot do without gas boiler. Accordingly, it is possible to turn off the electric boiler during the daytime. At the same time, all heat sources work for the storage tank, the temperature in which must also be controlled and, in accordance with it, the operation of the entire system must be balanced. At the same time, a work schedule is laid down by time of day and days of the week.
Combined schemes
One of the most relevant is the use in one system of a gas and electric boilers or a gas boiler and a solid fuel boiler (the first one as the main one, the second one as an additional one) (Fig. 2).
Rice. 2. Scheme with the joint use of electric and gas boilers: AF, WF1, WF2, VF1, RLF1, SF - temperature sensors (outside air, boilers, coolant in the supply and return pipelines, DHW storage tank); MK1 - three-way mixing valve with electric drive; Tmax - overhead thermostat; P1, SLP, ZKP - pumps
Moreover, in the first case, since it is advisable to turn on the electric boiler at night, when the electricity tariff is lower, a timer with a daily, weekly schedule and a weekend program is used. In the second case, in the absence of gas, a solid fuel boiler will ensure that the heating and hot water systems operate at the required level. Also, heat sources on various types of fuel make it possible to ensure the reliability of the system under certain other force majeure circumstances.
In this case, the controller provides boiler control, limiting maximum temperature at the outlet of the boilers, stepless (smooth) control of the gas boiler with the optimal load on it. It is possible to organize work management taking into account the air temperature in the room and weather correction. Frost protection, automatic legionella protection and hot water priority are available.
Connecting a heat pump allows you to create systems in which alternative energy is the base for heating water in the buffer tank (Fig. 3).
Rice. 3. Use of a gas boiler, heat pump and buffer tank: AF, WF, VF1, KSPF, VE1, SF - temperature sensors for outdoor air, boiler, coolant on the supply pipeline, at the inlet and outlet of water from the buffer tank, DHW storage tank; KVLF - water temperature sensor; MK1, VA1 - three-way valves with electric drive; P1 - pump of the mixing circuit of the heating system; VA2 - pump for loading the buffer tank from the heat pump
At the same time, automation will provide control of the water temperature at the outlet of the heat pump and optimization of the equipment operation processes. In this scheme, the base heat source is the heat pump, and the gas boiler covers the peak loads of the system. Greater freedom in the choice of fuel can be provided by a scheme using a solid fuel boiler and a solar collector (Fig. 4).
Rice. 4. Scheme using a solid fuel boiler, a solar collector and a buffer tank: AF, WF1, VF1, VE1, SF, VE2, KSPF, KRLF, KVLF - temperature sensors for outdoor air, boiler, coolant on the supply pipeline, at the outlet of water from the buffer tank , DHW storage tank, water at the inlet to the DHW storage tank from the solar collector, at the inlet of water into the buffer tank, at the inlet of water into the solar collector, water into the solar collector; MK1, MK2, U1 - three-way mixing valves with electric drive (heating system circuit, to maintain the set temperature at the inlet to the solid fuel boiler, valve between the buffer tank and the solar collector); P1 - heating mixing circuit pump
This ensures maintaining the set temperature at the inlet and outlet of the boiler, controlling the temperature of the water in the solar collector, switching the flow of water entering the solar collector from the DHW tank and the buffer tank. Parallel weather-compensated operation with a mixing heating circuit is possible.
To create large heating systems, it is often necessary to connect boilers in a cascade, which controllers also cope with (Fig. 5). At the same time, optimal parameters and accounting for the operating hours of each heat generator are ensured.
Rice. 5. Connecting gas boilers to the cascade: AF, WF1, WF2, VF1, VF2, VF3, SF, RLF1, RLF2 - temperature sensors for outdoor air, boiler, coolant in the supply pipeline, DHW storage tank, water in the return pipeline; MK1, MK2, MK3, R1, R2 - three-way mixing valves with electric actuator
In any case, for specific conditions, you can choose the most appropriate scheme for them, which manufacturers of control devices offer dozens of.
Perspective - universal controller
Currently, there is a noticeable trend towards the complication of air conditioning systems in buildings. Accordingly, controller developers are also adapting to this trend.
These devices already allow you to send data about the operation of systems via mobile communications or via the Internet. For example, in the United States, touchscreen monitors with the ability to integrate with operating systems smartphones such as Android. Thus, it is possible to remotely control the operation parameters climate systems, which may include not only heating, but also ventilation systems, air conditioning, security and fire systems.
Since different manufacturers protected their products with different data transfer protocols, controllers have now appeared that allow the use of all existing protocols (for example, CentraLine (Honeywell)). This is especially true in the case of installing regulators at modernized facilities.
However, with the increasing complexity of systems, the question arises of creating a kind of universal controller. This is currently the main perspective and challenge for developers. A single controller, depending on the software embedded in it, can be used to control various building engineering systems. This is a kind of small computer, for which it is only necessary to install “software” for specific tasks and program it directly for a specific object.
The complexity of introducing freely programmable controllers lies, first of all, in the high cost of software. In addition, the issue of compliance with the level of user training, the availability of qualified service personnel and the exclusion of unauthorized interference in the operation of control devices is relevant.
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Controllers for heating and hot water systems
Main Catalog OWEN Meters-regulators OWEN Controllers OWEN for heating, hot water, ventilation, air conditioning systems Controllers for controlling heating and hot water systems
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The industrial controller OWEN TRM32 is designed to control and regulate the temperature in heating and hot water circuits.
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The industrial controller OWEN TRM32 is designed to control and regulate the temperature in heating and hot water circuits.
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The industrial controller for heating and hot water supply OWEN TRM32 is designed to control and regulate the temperature in heating and hot water circuits.
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Controllers for heating and hot water systems TRM132M in combination with primary converters, expansion module MP1 and executive mechanisms designed to control and regulate the temperature in heating and hot water circuits, display the measured temperature and operating modes on the built-in indicator and generate control signals for the built-in output elements and output elements of the MP1 module.
Controllers for heating systems from the OWEN company are characterized by increased reliability and noise immunity. Such modifications of devices as TRM32-Shch4 or TRM132M are made in housings made of shock-resistant ABS plastic and are able to work effectively even in the most severe industrial conditions. These devices not only regulate the temperature of the heating and hot water circuits, but also protect the system from overtemperature return water returned to the heating plant.
If you need a reliable and accurate heating control controller, we advise you to pay attention to devices that are manufactured under the OWEN brand. These devices maintain a predetermined temperature level in the system circuits. Also, heating controllers provide the ability to automatically switch modes, for example, "day-night". The device features easy programming and a clear interface.
In addition, controllers for heating systems also perform a protective function. They regulate the temperature of the return water returned to the district heating plant. In the event of overheating, the heating controllers reduce the readings to a normal value, thereby protecting the equipment.
Why buy a DHW controller on our website?
Here you will find controllers for heating systems, differing in:
- the number of inputs-outputs;
- case type;
- interface for data configuration on PC, etc.
Each DHW controller presented on the site is responsible international standards quality and safety, which is confirmed by the relevant certificates. In addition, we offer each customer:
- Low prices. We sell controllers for heating systems at manufacturer's prices. We also provide various discounts and bonuses.
- Warranty and post-warranty service. OvenKomplektAvtomatika specialists have at least 5 years of experience working with devices such as controllers for heating systems.
- Delivery throughout Russia. We will bring your heating control controller by courier service in Moscow and the region. We send devices to the regions by mail, express mail and transport companies.
OWEN controllers are high-tech devices for managing building engineering systems. Found wide application in the field of housing and communal services and industrial production. Also common in block individual heat points and systems with dispatching.
The advantages of OWEN controllers for ventilation, heating and hot water systems include versatility, flexibility, ease of use and long service life. The equipment automatically selects desired mode, carries out diagnostics of emergency situations, adjusts PID controllers, updates firmware, etc. When choosing devices, pay attention to the technical characteristics:
- rated supply voltage,
- type of input sensors,
- number of output relays,
- polling cycle time,
- communication interface,
- degree of protection of the hull,
- permissible load current,
- range operating temperatures,
- dimensions.
To order OWEN controllers for ventilation, heating and hot water systems, add items to the cart and leave your contact details. Through a short time the manager will call you back to clarify the details of the order. For detailed information about the models, see the documentation posted on the site.
KTR-121.01 boiler regulator KTR-121.01 is designed to control the operation of one hot water boiler with an automated gas or liquid fuel burner. The boiler regulator is recommended for retrofitting or replacing outdated boiler cabinets.
KTR-121.02 cascade boiler regulators KTR-121.02 are designed to control a cascade of boilers. They are used in heating and industrial boiler houses with automated gas and liquid fuel burners. The cascade controller is a solution for automating a boiler room in order to optimize its operation and reduce equipment maintenance costs.
TPM1033 heating and cooling ventilation controller
TRM1033 is a specialized controller with ready-made algorithms for automation supply ventilation. The controller allows you to control standard ventilation units to achieve maximum comfortable temperature supply air for rooms:
TRM33 OWEN - controller for heating systems with forced ventilation
- warming up the heater when the system is started;
- protection of the system against excess return water temperature;
- protection of the water heater from freezing;
- standby mode with the fan off and blinds closed;
- automatic transition to summer mode.
TRM133M OWEN - ventilation and air conditioning controller
Controllers for supply ventilation systems TRM133M allow you to control and regulate the air temperature in rooms equipped with a supply or ventilation system. supply and exhaust ventilation. This device is supplied with the OWEN MP1 expansion module. There are two implementations of the TPM133M controller:
TRM232M controller for heating and hot water with pump control ARIES TRM232M - controller for temperature control in heating systems, hot water supply and control of pumping groups. Designed to control ITP and central heating of residential and industrial buildings. Complete with sensors and actuators OWEN TPM232M provides control and regulation of temperature and pressure, controls circulation pumps circuits, cold water pumps and make-up circuits.
Constant monitoring of the heating system requires a lot of effort and time. However, the emergence of new control devices can greatly simplify this process, and in some cases completely automate it. To do this, you will need to install the appropriate controller for heating and boiler control systems.
Purpose of heating controllers
The main purpose of this electronic device is to change the parameters of the control devices connected to it in order to adjust their operation. The simplest example of an elementary such control element can be considered an automatic control protection system in gas boilers. But controllers for heating and hot water have a wide functionality.
They are an electronic unit with the ability to control the main elements of the heating system. To do this, it provides the possibility of programming parameters depending on the data received, from external temperature and pressure sensors. So, a controller for a heating boiler can regulate the operation of a floor heating collector or individual thermostats on radiators.
To general characteristics electronic control units include the following:
- System flexibility. For connection to heating components, it is not necessary to reprogram the device. In most cases, manufacturers provide several operating modes for one connection terminal;
- Possibility to choose a convenient place to install the control panel. Controller Heating Honeywell can be mounted at a distance of up to 100 m from the control element;
- Control over the functioning of not only heating systems, but also hot water supply;
- If you have a GPS unit, you can online mode receive data on the state of heating and send commands to change its parameters.
Important is the function of connecting the device to a computer. A similar additional module is installed on the Aries heating controller. It is noteworthy that it is not included in the mandatory package.
The controller can be installed on an old gas boiler. To do this, it is enough to change the heating pad to a new modular type.
Selecting a heating controller
When should a heating controller be installed? First of all, this device is necessary for frequent absences in the house or apartment of residents. By connecting the electronic unit to external temperature sensors (outdoors and indoors) and the boiler control terminals, you can use the built-in software package to set up an automatic change in the intensity of the burner operation.
How to choose the best controllers for heating systems? The easiest option is to consult with experts. But it is currently difficult to find them, as this product is relatively new. Therefore, it is recommended that you first study the main selection parameters yourself:
- When comparing the controller for a heating boiler, make sure that the installed equipment has the ability to connect to the control unit. Most often, the boiler is characterized by one-stage or two-stage external control. This only applies to gas models- coordination with solid fuel is impossible;
- The number of managed components. For a Honeywell heating controller, this value can be up to 15 depending on the specific model;
- The presence of a GPS block. As mentioned above, this function makes it possible to remotely control heating;
- Frequency of software updates. The modern TRM 32 heating and hot water controller can be connected directly to a computer. You can always find the latest software version on the manufacturer's website.
An additional function is the regulation of the operation of the components according to the set heating schedule. This possibility is provided in the Aries heating controller. You should also pay attention to the accuracy of measurements. AT professional models this indicator should not exceed ±0.01 of the scale.
Repair of heating controllers is rare. However, it is still recommended to choose a manufacturer that has service centres in the region of residence.
Overview of popular controller models
Having decided on the required parameters of controllers for heating and hot water, you can begin to analyze the proposed products. Despite the large assortment, the market is oversaturated with low-quality models. Their actual parameters do not correspond to the declared ones, which subsequently leads to incorrect operation of the heating. Consider truly popular and reliable examples of heating control controllers.
Honeywell
Among the entire product range of the company, the Smile SDC7-21N model occupies a special place. In addition to an affordable price, it is characterized by optimal functionality, which is important for heating controllers.
It is important for the consumer to know the characteristics of the electronic device. It should be noted right away that for optimal operation of the Honeywell controller in the heating system, it will be necessary to purchase additional modules - terminal blocks for connecting system components, a set of temperature sensors, a mixing 3-way valve and actuators. After assembling the controller, it will be possible to control heating and hot water according to the following parameters:
- Possibility of regulation of work of a torch of a copper with two-stage management;
- Simultaneous control of 2 cascade type boilers. But for this you will need to install an additional temperature sensor at the outlet of the second one;
- Controller for heating system can carry out adjustment of the direct and mixing circuit, depending on the street and room temperature;
- DHW pump control;
- Possibility of setting a 7-day heating control program.
In the minimum configuration, it will only work as a controller for a heating boiler. But this does not prevent over time to purchase additional modules and upgrade the system. The cost of a complete set is about 45 thousand rubles.
It is best to purchase a complete set of equipment, as all of its components are guaranteed to work properly when connected to each other.
Aries TPM 32
If you need to choose an option for more affordable price- it is recommended to pay attention to the Aries TPM 32 heating controller. This domestic product is in no way inferior to foreign analogues in its functionality. It is noteworthy that it can be used to control not only heating, but also hot water in several ways.
It should be immediately warned that the TPM 32 controller unit for heating and hot water systems is more massive than the similar Honeywell. Therefore, you need to think in advance about the place of its installation. In addition to it, the manufacturer offers a remote panel.
As for the functionality, in addition to the standard features, the following features of the controller for heating and hot water of this type should be noted:
- Automatic maintenance of water temperature in the DHW circuit;
- Using PID controllers, it is provided high accuracy coolant temperature;
- Built-in heating protection against reverse water movement;
- Availability of day / night mode. In particular, this function is relevant for two-tariff electricity meters.
But the most interesting for the consumer is the cost of the Aries heating controller. The price of the basic model without additional equipment is 8-10 thousand rubles.
Can I install a controller for heating and boiler control systems myself? Despite the apparent complexity, the instructions for each model describe in detail which terminals should be connected to the heating components. If you carefully study the technical documentation of the controller and the boiler, you can install the automation yourself.
Controllers for heating and hot water systems TRM132M in combination with primary converters and actuators are designed to control and regulate the temperature in heating and hot water circuits, display the measured temperature and operating modes on the built-in indicator and generate control signals for the built-in output elements and output elements of the MP1 module.
Features of the TPM132M controller
- Built-in real time clock
- Automatic tuning of PID controllers
- Automatic selection of modes (heating / reverse / summer)
- Ability to change the firmware (using the TRM133M flashing kit)
Functionality OWEN TRM132M
- Automatic temperature control in the DHW circuit in accordance with the set setpoint
- Automatic temperature control in the heating circuit according to the schedule from T-outside air and T-direct water
- Development of the return water temperature graph depending on T-outside air and T-direct water (protection against over and under return water temperature)
- Control of the main and standby pump in both circuits
- Protection against excess temperature in the DHW circuit
- Charging pump control in the heating circuit
- Possibility of using a third pump in each circuit (emergency)
- Formation of control signals for external actuators and devices in the DHW circuit: shut-off and control valve, main and standby pumps, drain valve (optional); alarm devices
- Formation of control signals for external actuators and devices in the heating circuit: shut-off and control valve, main and standby pumps, boost pump, alarm devices
- Diagnostics of emergencies (breakage of temperature sensors and position sensors, malfunction of pumps)
- Setting the values of programmable operating parameters using the built-in control keyboard, as well as from a PC via an RS-485 and RS-232 network
- Support for exchange protocols: ARIES, Modbus-RTU and Modbus-ASCI
Comparison of devices for controlling heating and hot water systems
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| For heating and DHW systems with control valves with 3-position (220 V 50 Hz) control.
| For heating and hot water systems with control valves with 3-position (220 V 50 Hz) or analog (0…10 V, 4…20 mA) control.
| For single-circuit (one heating system / one DHW system / one “warm floor” circuit) or double-circuit (two CO, or two DHW, or CO and DHW, etc.) systems.
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