TRM132M controller for heating and DHW with time control. Controllers for heating, air conditioning, ventilation and DHW controllers for heating systems
: appearance, housing, front panel and reliable internal filling, differs only by special software with PID control. TRC-03 DHW (hereinafter the thermostat, differential controller, temperature controller or device) is designed to work in hot water systems [DHW] (for example, with a boiler of indirect heating) and a three-way mixing valve, or for use in other industrial and technological processes, in which differential thermostat is required from two digital temperature sensors (DTCs or thermal sensors), in order to maintain hot water or other temperatures liquids in the tank [tank, heat exchanger, etc.] on a user-defined level by controlling the servo drive of a three-way mixing tap and load [for example, a pump, a TEN, etc.].
Photo 1. Appearance of the controller of the TRC-03 GVS.
Photo 2. Controller TPC-03 DHW in work.
The device is able to control one contour of the heating system - two loads at the same time: circulating pump [Maximum active power no more than 270 W]; the servo drive of the three-way mixing crane (valve) [With a maximum active servo capacity of no more than 270 W with a supply voltage of 220-230 V with control of 3 poss. (oo)], for example, Servers V70 and V70F can be used Mut Meccanica. Articles 7.030.00776 (V70 50 230 OO or V70F 100 230 oO) or similar servo drives of other manufacturers ( for example, ARA600 series ESBE Series 230V AC), in order to maintain the target coolant temperature at a given level according to the selected weather-dependent curve, with the display of controlled temperatures from the thermal sensors on the built-in LED indicator.
Information on weather-dependent controller TPC-03 DHW
Features of temperature regulator
- PID regulation;
- installation in a standard case on a DIN rail;
- a modern microcontroller is used;
- digital thermal sensor for measuring the temperature of the coolant;
- digital thermal sensor for measuring hot water temperature;
- digital LED indication;
- circulating pump management;
- mixing crane control [valve] SPDT with supply voltage 220-230 V;
- soft keys are used to manage loads ( electromagnetic relays do not apply), which makes it possible to increase the durability and reliability of the device;
** The manufacturer reserves the right to make changes to the package, the appearance of the temperature regulator, as well as in its circuitry and operating modes without deteriorating the technical characteristics of the device.
Some technical specifications of the device
- Nominal supply voltage: ~ 220 [+/- 5%] B;
- Rated frequency: 50 Hz;
- Maximum switched output power (low-power output 1): 270 W;
- Maximum switched output power (low-power output 2): 270 W;
- Type of thermal sensor: external, digital;
- Number of channels: two;
- Temperature measurement accuracy with thermal sensor: 0.1 o C;
- Temperature indication discreteness: 1 o C;
- Range of measured temperatures: -40 ... + 99 o C;
- Temperature of liquids to display on the indicator: 0 ... + 99 o C;
- Indicator type: LED;
- Management type: digital (electronic) with a microcontroller;
- The power consumption of the thermostat (without taking into account the consumption of the loads connected to it): no more than 5 W;
- Installation type: on DIN rail;
- The width of the chassis of the tremor regulator: about 70 mm;
- Degree of protection: IP20;
- The ambient temperature in the room where the thermostat is set: 0 ... + 40 o C;
- Mass: about 120 grams;
- Compatible servo drives:V70 and V70F Mut Meccanica Articles 7.030.00776 (V70 50 230 OO or V70F 100 230 oO); ESBE ARA 600 Series: ARA 661, ARA 671, ARA 651, ARA 662, ARA 691, ARA 672, ARA 692 ...; Watts (Water thechnologies): 3-chassing V3GB mixing valves with M60W servo drive; Meibes.: Meibes Plus ST10 / 230; Valtec.: Vt.m106.0.230; VEXVE AM: Articles 1920751, 1920750 and 1920749.
Scheme of a hot water system with a thermostat of the shopping center TRC-03 DHW
Photos from a real object, where the TRC-03 temperature controller is installed and used to automate the hot water system.
 Photo 1. Controller TPC-03 DHW, display temperature of hot water. |
 Photo 2. SERVO V70F MUT Meccanica in working with a thermostat of TRC-03 DHW. |
 Photo 3. TERRIT V70 MUT Meccanica and a thermal sensor in a ligament with a thermostat. |
 Photo 4. Installing the thermal sensor in the sleeve and fill the thermal paste. |
Controllers of heating systems and DHW TRM132M in a complex with primary transducers, and the actuators are designed to control and control the temperature in the heating circuits and the DHW, mapping the measured temperature and operating modes on the built-in indicator and generating control signals of the built-in output elements and the output elements of the MR1 module.
Opportunities of the TRM132M controller
- Built-in real-time clock
- Automatic configuration of PID regulators
- Automatic mode selection (heating / reverse / summer)
- The possibility of changing the firmware (with the kit for flashing TRM133M)
Functionality Aries TRM132M
- Automatic temperature control in the DHW circuit according to the specified setpoint
- Automatic temperature control in the heating circuit according to graphics from T-outer air and T-direct water
- Development of the temperature of the reverse water temperature depending on T-outer air and T-direct water (protection against overestimation and improving the temperature of the reverse water)
- Management of the main and backup pump in both circuits
- Protection against excess temperature in the DHW circuit
- Control pump feeding in heating circuit
- Ability to use the third pump in each circuit (emergency)
- Formation of signaling signals by external actuating mechanisms and devices in the DHW circuit: a shut-off valve, basic and backup pumps, a plum valve (optional); Alarm devices
- Formation of signaling signals by external actuating mechanisms and devices in the heating circuit: a shut-off valve, basic and backup pumps, feed pump, alarm devices
- Diagnostics of emergency situations (open temperature sensors and position sensors, pump malfunction)
- Set the values \u200b\u200bof programmable operating parameters using the built-in control keyboard, as well as from PC on the RS-485 and RS-232 network
- Exchange protocols support: Aries, Modbus-RTU and MODBUS-ASCI
Comparison of devices for controlling heating systems and DHW
 |  |
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| For heating and DHW systems with 3-confidential control valves (220 V 50 Hz) control.
| For heating and DHW systems with 3-configuration control valves (220 V 50 Hz) or analog (0 ... 10 V, 4 ... 20 mA) control.
| For single-circuit (one heating system / one DHW system / one circuit "Warm floors") or two-circuit (two CO, or two GVS, or CO and DHW, etc.) systems.
|
Permanent control of the operation of the heating system requires a lot of effort and time. However, the emergence of new control devices can significantly simplify this process, and in some cases fully automate it. To do this, you need to install the appropriate controller of heating control systems and boilers.
Purpose of heating controllers
The main purpose of this electronic device is to change the parameters of the control devices connected to it to adjust their operation. The simplest example of an elementary such control element can be considered a system for automatic control of control in gas boilers. But controllers for heating and DHW have a wide functionality.
They are an electronic unit with the possibility of managing the main elements of the heating system. To do this, it provides for the possibility of programming parameters depending on the data obtained, from external temperature and pressure sensors. Thus, the heating boiler controller can adjust the operation of a heat-insulated floor collector or individual thermostators on radiators.
The general characteristics of electronic control units include the following:
- Flexibility of the system. To connect to the heating components, you do not need to reprogram the device. In most cases, manufacturers provide several modes of operation for one connection terminal;
- The ability to select a convenient place to install the control panel. Honeywell heating controller 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 a DHW;
- If there is a GPS block, you can receive data on the state of heating and betray the commands to change its parameters.
An important is the function of connecting the device to the computer. Such an additional module is installed on the heating controller Aries. It is noteworthy that it is not included in the mandatory complete set.
The controller can be installed on an old gas boiler. To do this, it is enough to change the heating on a new modular type.
Selection of heating controller
In which cases should I install heating controller? First of all, this device is necessary with frequent absences in the house or apartment of residents. By connecting the electronic unit to the external temperature sensors (on the street and indoors) and the boiler control terminals, it is possible using the built-in software package to configure the automatic change in the intensity of the burner functioning.
How to choose optimal controllers for heating systems? The easiest option is to consult the specialists. But it is currently difficult to find those, since this product is relatively new. Therefore, it is recommended to first examine the basic parameters of the selection:
- When comparing the controller for the heating boiler, make sure that the installed equipment has the ability to connect to the control unit. Most often, the boiler is characterized by a single-stage or two-stage external control. This applies only to gas models - coordination with solid fuel is impossible;
- Number of controlled components. For a Honeywell heating controller, this value can reach 15 depending on the specific model;
- The presence of a GPS block. As mentioned above - this function makes it possible to remote control heating;
- The frequency of software update. The modern controller of heating systems and DHW TRM 32 can be connected directly to the computer. On the manufacturer's website you can always find the latest version of software.
Additional feature is adjusting the operation of the components according to the configured heating graph. Such an opportunity is provided in the controller of the heating of Aries. You should also pay attention to the accuracy of measurements. In professional models, this indicator should not exceed ± 0.01 scales.
Repair of heating controllers rarely. But it is still recommended to choose the manufacturer who has service centers in the residence area.
Overview of popular controller models
Deciding with the required parameters of controllers for heating and DHW, it is possible to start the analysis of the products offered. Despite the large range, the market is oversaturated with poor-quality models. Their actual parameters do not correspond to the declared, which subsequently leads to improper operation of heating. Consider truly popular and reliable examples of heating controllers.
Honeywell.
Among the entire range of the company's products, the SMILE SDC7-21N model is occupied by a special place. In addition to affordable prices, it is characterized by an optimal functionality, which is important for controllers of heating systems.
For the consumer, it is important to know the characteristics of the electronic device. It should be immediately noted that for optimal operation of the Honeywell controller in the heating system, you will need to purchase additional modules - terminals for connecting the system components, a set of temperature sensors, a mixing 3-chassing valve and drive. After assembling the controller, you can control heating and DHW in the following parameters:
- The ability to regulate the burner of the boiler with two-stage control;
- Simultaneous control over the 2 boilers of cascade type. But for this it will be necessary to install an additional temperature sensor at the second output;
- The controller for the heating system can adjust the direct and mixing circuit in the envy of the street and room temperature;
- DRW pump control;
- The possibility of installing the 7-day heating regulation program.
In the minimum configuration, it will only work as a controller for the heating boiler. But it does not interfere with time to purchase additional modules and upgrade the system. The cost of a complete set is about 45 thousand rubles.
It is best to get a complete set of equipment, as all its components will be guaranteed to work normally when connecting to each other.
Aries TRM 32.
If you need to choose an option at a more affordable price - it is recommended to pay attention to the controller of the heating of Aries TRM 32. This domestic product is not inferior to foreign analogues in its functionality. It is noteworthy that with its help you can control not only heating, but also the DHW in several parameters.
It should be immediately warned that the controller unit for heating systems and DHW TRM 32 is more massive than similar Honeywell. Therefore, you need to think about it in advance. In addition to it, the manufacturer offers a remote panel.
As for functionality, in addition to standard features, such features of the controller for heating and DHW of this type should be noted:
- Automatic maintenance of water temperature in the DHW circuit;
- Using PID controllers, a high accuracy of the coolant temperature is ensured;
- Built-in protection of heating from the return of water;
- The presence of the day / night mode. In particular, this feature is relevant for two-year electricity meters
But the most interesting for the consumer is the cost of the controller for heating Aries. The price of the basic model without additional equipment is 8-10 thousand rubles.
Is it possible to independently install the controller of heating control systems and boilers? Despite the seeming complexity, in the instructions for each model, it is described in detail to what terminals should connect the heating components. If you carefully examine the technical documentation of the controller and boiler - you can install automation yourself.
Automation of heating and DHW systems is necessary for permanent maintenance of a given temperature of the coolant and water without direct human participation.
Advantages of using the automation system
- Controllers of heating and DHW systems allow you to regulate the temperature regime in the heating circuit according to heating graph, which depends on the air temperature or on the temperature of the direct water from the highway;
- automation for water supply maintains the temperature of hot water at a specified level;
- Controllers for heating and DHW systems help maintain the desired temperature of heating and DHW systems and change it in accordance with the specified schedule: day / night mode, work / weekends and by an individual schedule specified by the user;
- The heating system controller helps maintain temperature regime in the return pipe according to the specified schedule to avoid fines for its excess;
- Automate the heating loop according to the testimony of the pressure sensor in the heating system;
- The automatic translation of the heating system between the winter / summer seasons can be configured, with a periodic automatic scrolling of circulating pumps;
- The overhauls are excluded during thaw, energy savings occurs;
- Pump wear is reduced due to the optimization of the system's operation algorithm;
- An emergency notification signals are configured in accordance with the testimony of temperature and pressure sensors in networks, idling, electrical protection, etc.
Control controllers for heating and DHW systems
Controllers of heating systems and GVS "Contour" are freely programmable controllers that are combined into a single network over the RS485 interface, which makes them convenient to create an extensive geographically distributed network. For programming controllers, the "Congraf" design is used, which creates an FBD language algorithm, which is easy to master any engineer not a programmer. Programs for visualization of processes in the heating system and DHW allow you to monitor the parameters in real time, locally or via the Internet.
The installation of heating controllers and 30% reduces energy consumption by 30% due to the optimization of systems according to an individually designed algorithm.
Contour controllers are suitable for automating projects of any complexity and scale from small structures to multi-storey buildings. To expand the system, no longer operating controllers are required. The heating and DHW systems are also integrated with other systems of buildings: security systems, energy consumption accounting, etc.
In the line of programmable controllers "Contour" to automate thermal points and heating and water supply systems, the following devices are recommended:
- Programmable controllers - MC8, MC12,
- Expansion module (I / O module) - MA8.
Development of projects for automation of heating systems and DHW
For thermal items, MZT offers a library of algorithms. If there are no suitable algorithms, they can be developed independently. The development of algorithms is carried out in a special Congraf environment, and then using the software tool the console is loaded into the programmable controller.
Typical projects of automation of thermal points
A typical control circuit of the thermal control on the database of the programmable controller typically includes the following functional controls:
- sensors: temperatures, pressure, unauthorized access (optional);
- controls for feeding commands in manual mode;
- means of visualization of the operating modes of the object;
- executive devices:
- low-power (valve actuators);
- powerful (pumps).
- functional controls used in a technical solution;
- features of the heating object:
- heated area,
- floors,
- the spatial configuration of the location of pipelines and radiators in the system heating of the object;
- the presence of special zones with special thermal modes.
Table 1 shows the outputs of programmable controllers, which are used to control the actuators in the control circuit of the thermal point.
Table 1 Outputs of programmable controllers to control actuators
| MC8. | Discrete, "Electronic Key" (Open Collector - MS8-301) | 8 | Not | 48V, 0.15 A (post. Current) |
| Discrete, "Electronic key" (Optro Simistor - MS8-302) | 8 | there is | 48V, 0.8 A (Current) | |
Analog:
| 2 | Not | 0 a - 0.02 a | |
| 1 | there is | |||
| MC12 | "Dry contact" | 8 | there is | Up to 250 Ah. Tok Up to 3 AC Tok |
Analog:
| 4 | Not | 0 a - 0.02 a | |
| RS485 port (MODBUS RTU protocol) | 1 | there is | ||
| MA8. | "Electronic key" (optro simistor) | 2 | there is | 36V, 0.1 A (Current) |
Analog:
| 2 | Not | 0 a - 0.02 a |
Additional components of sparkling chains intended for installation on the plug-in are included in the installation of the supplied programmable Contar controllers.
Depending on the specifics of a particular solution, control signals on actuators can be supplied through:
- 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;
- the RS485 port connected to the executive device using the Modbus RTU protocol.
- specified in the real-time scheduler (built into the programmable controller),
- manual control signals (built-in or plug-ins, buttons),
- sensor signals logic (presence sensor, temperature),
- sensor Signals Analog (Temperature, Pressure),
- team from the dispatch point,
- the command from the master controller.
The ports and inputs of programmable controllers, which can be involved in the thermal point control algorithms, are shown in Table 2.
Table 2. Ports and inputs of programmable controllers to solve thermal control problems
| MC8. | MS12. | MA8. | |||||||||||||||||
| RS232 port (for communication with the upper level) / Number of ports | +/1 | + | - | ||||||||||||||||
| USB (for communication with the upper level) / number of ports | +/1 | +/1 | - | ||||||||||||||||
| RS485 port / Number of ports / availability of galvanic junction with controller chains | + / 2 / there | + / 2 / there | + / 1 / there | ||||||||||||||||
| The maximum maximum value of the measured parameter at a 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 com; /eight | 50 ohm ÷ 10 com; /eight | 50 ohm ÷ 10 com; /eight | Discrete input (Optoelectronic pair) / Number of inputs / availability of galvanic junction with controller chains | + / 4 / there | + / 4 / there | + / 4 / there |
* Manual switch (button) | +/4
| +/4
| -
|
|
* When configuring a built-in controller (MD8.102) or a remote control (MD8.3) control panel.
Discrete inputs of programmable controllers and extension modules are designed to connect sensors to them with discrete outputs as a key (relay, open collector, optocoupler simistor, etc.). Such a solution allows you to simplify the coordination of programmer inputs with most types of sensors that transmit information about the measured parameter in discrete form.
Discrete inputs are galvanically separated from the circuits of controllers / expansion modules.
The measuring function embedded in programmable MC8 / MC12 controllers and MA8 extension modules allows you to measure an analog signal depending on the type of sensor / signal:
To correctly connect the sensor to the analog input of the programmable controller or the extension module, each input provides a configurator as a contact group on which jumpers are installed. The configurator under the cover of the instrument housing is located. Places and the number of jumpers installed are determined by the type of sensor and its electrical characteristics. Jumpers are included.
Heating and DHW
Depending on the scale of the task of automating the control of the thermal item can be implemented:
- Local control of thermal item in configurations:
- Autonomous controller (based on MC8 or MS12).
- Network of controllers: Master (MC8 or MS12) - Slave (MS12; MC8, MA8).
- Local or remote dispatching lighting control in configurations:
- Single controller (MC8 or MS12)
- Network of Controllers: Master (MC8 or MS12) - Slave (MS12; MC8, MA8)
To organize stationary local control of heating and DHW systems, special control panels, equipped with indicators, control buttons and a liquid crystal display can be used:
- MD8.102 - Built-in, installed on the MC8 / MC12 programmable controller housing.
- MD8.3 - remote, usually installed on the automatic cabinet door
The most convenient organization of local control of heating and DHW systems can be implemented on the basis of an external operator console. WEINTEK external consoles are recommended for installation.
If the adjustments in the algorithms are rarely made, and serving specialists are small, then it is possible to refuse from the use of external control panels. Their role can be performed by a wearable laptop, a tablet or a smartphone connected to the controller directly at the location of the heat point through the access point or via the wired interface (USB, Ethernet, RS232). To ensure such an opportunity there are special submodules.
Dispatch, or remote access to the object, can be organized both on the basis of wired solutions (Ehternet, Internet) and on the basis of wireless radio communications technologies, for example, via GSM modem.
Programmable MC8 / MC12 controllers in accordance with the specified list of critical parameters and events transfer the corresponding data to the dispatching system and / or store them in their internal memory.
www.mzta.ru.
Controllers for heating and DHW systems: Application schemes and development trends
The word "CONTROLLER" translated from English means "regulator" or "control device". According to the theory of management, this device that controls and controls engineering systems and produces control signals for them. Regulators monitor the changes in the parameters in the engineering systems of the object and respond to this change using the set of control algorithms and the corresponding settings.
In Ukraine, 10-15 years ago, such devices were used, for the most part, in thermal items and occasionally in boiler houses. Their functions were limited, that is, it was reduced, for example, to control a single mixing valve or a separate element of the system. In this case, the inclusion / disabling of boilers or pumps was carried out manually. Yes, and the schemes themselves were chosen under the algorithms of the controller's work, which could not fully cover all thermal item systems or boiler room. Therefore, separate controllers were controlled by various parts of the system - heating, DHW, pumps, malfunction signaling or alarms, etc. All control devices were placed in fairly large control cabinets.
To date, the situation has changed dramatically. Now the specialist has the ability to create a practically any control circuit in which the controller can be applied. The scope of software can be quite large, since modern devices allow you to store actually unlimited information. Significantly increased data processing.
The so-called "Stand Alone" controllers received a lot of distribution, i.e. Preprogrammed controllers. These devices are designed to control individual thermal heights of centralized heat supply or decentralized systems. In modern models of controllers, no one or two control schemes are laid as before, and 20 or more. And they can be controlled simultaneously with boilers on various types of fuel, thermal pumps, heliosystems, GWS boilers, storage tanks, etc.
Such devices deliver various companies to the Ukrainian market, for example, Danfoss (Denmark), Kromschröder (Germany), Honeywell (USA).
The required temperature of the boiler is calculated by the controller based on the request for heat from the controlled contours of the heating systems and the DHW. Each device can work independently or in a local network in which several controllers can be simultaneously. All parameters, as well as temporary programs, have preliminary settings for each control circuit and allow individual adaptation to the heating system and the requirements of its user.
For example, in Smile controllers (Honeywell) (Fig. 1) there are about 20 programs that allow them to use them for 30-40 schemes. Devices can be applied locally (with each single controller controls one-three heating circuits), as well as merge into one system (up to five devices). Controllers have three free entries and two free outputs for additional control functions. Variations of heating systems are set at the commissioning stage.
Fig. 1. SMILE controller
Changes in the parameters of the work allow you to achieve a certain level of flexibility in the management of heating systems. Although these controllers have rigid work algorithms, they can be adapted to a specific scheme. Suppose the controller controls the mixing circuit consisting of a valve, pump and two sensors on the feed and return pipelines. When changing certain parameters responsible for the mixing valve, you can connect the hot water system circulation pump to the controller, the temperature sensors are placed in the heat exchanger - and the controller does not control the contour of the heating system, but fully monitors the operation of the DHW system. That is, the same output can be used for various components of the schema. Such flexibility is renovated with the reconstruction of the premises with the equipment of additional heating circuits, for example, a partial replacement of radiator heating to the "warm floor" or expansion of the DHW system. In this case, one controller will be controlled and the "warm floor" system, radiator heating, boiler and hot water system.
It is possible to connect remote modules with indoor air temperature sensors. Connected modules have a setting knob and a "Economical / Scheduled" mode switch, digital display, and duplicate the controller settings buttons, providing full access and remote control mode. It is possible to individual control of the individual contour of the heating system from one room. To do this, it is necessary to embed the wall module of a suitable model into the heating system.
SMILE SPECIFICATIONS: Electricity consumption - 5.8 VA, operate from the AC domestic network. Degree of protection IP 30. Dimensions (sh × in × g) - 144 × 96 × 75 mm. The housing is made of ABS plastic with antistatic coating. The maximum tire length is 100 m. The device is mounted on the wall using terminal boxes.
Modern controllers are suitable for creating weather-dependent fluid temperature control systems (for example, radiator, convectors) and systems where it is necessary to maintain a constant coolant temperature (for example, a "warm floor" type system, or for swimming pools) by mixing circuits, including Heliosystems.
Applying several "Stand Alone" controllers, you can create a fairly large and complex control system, suitable even for a large public building.
In individual construction, controllers allow you to organize systems in which various heat generators can be used, including using alternative energy sources.
Without controllers, creating such systems is almost impossible. After all, all their components have various algorithms and modes of operation. The electric boiler is advisable to include at night, when cheaper electricity tariff (with multi-tariff accounting). Either simultaneously use the heat pump. In the daytime, the Heliosystem collectors are turned on, and during peak loads on DHW in the morning and in the evening can not do without a gas boiler. Accordingly, it is possible to turn off the electric boiler during the daytime. At the same time, all heat sources operate on a bakkukkumulator, the temperature in which it is also necessary to control and, according to it, to balance the operation of the entire system. At the same time, the schedule of work on the time of day and days of the week is laid.
Combined schemes
One of the relevant is to use in one system of joint gas and electric boilers or a gas boiler and a hard fuel boiler (first - as the main, second - optional) (Fig. 2).
Fig. 2. Scheme with the joint use of electrical and gas boilers: AF, WF1, WF2, VF1, RLF1, SF - temperature sensors (outer air, boilers, coolant on the supply and return pipelines, Battery-battery, DHW); MK1 - a three-way mixing valve with an electrical drive; Tmax - overhead thermostat; P1, SLP, ZKP - Pumps
At the same time, in the first case, since the electric boiler is advisable to include at night when the electricity tariff is less, a timer with a daily, weekly schedule and a weekend program is used. In the second case, in the absence of gas, the solid fuel boiler will ensure the maintenance of the operation of heating and DHW systems at the required level. Also, heat sources on various types of fuels allow us to ensure the reliability of the system with other specific force majeure circumstances.
In this case, the controller provides boilers, limiting the maximum temperature at the outlet of boilers, stepless (smooth) control of the gas boiler with an optimal load on it. It is possible to organize management of work, taking into account air temperature in the room and weather correction. Functional protection functions, automatic protection from legionell, as well as hot water priority.
The connection of the heat pump allows you to create systems in which the alternative energy is the base for heating the water in the buffer container (Fig. 3).
Fig. 3. Using a gas boiler, heat pump and buffer capacity: AF, WF, VF1, KSPF, VE1, SF - Outdoor air temperature sensors, boiler, coolant on the supply pipe, at the inlet and outlet of water from a buffer container, a GVS battery reservoir; KVLF - water temperature sensor; MK1, VA1- three-way valves with electrical drive; P1 - Pump of the mixing circuit of the heating system; VA2 - Pump loading buffer container from heat pump
In this case, the automation will ensure control of the water temperature at the outlet of the heat pump and the optimization of the equipment processes. In this scheme, the base heat source is a heat pump, and the gas boiler covers the peak loads of the system. Great freedom to choose fuel can provide a scheme with a solid fuel boiler and a helixolet (Fig. 4).
Fig. 4. Scheme using a solid fuel boiler, solar collector and buffer tank: AF, WF1, VF1, VE1, SF, VE2, KSPF, KRLF, KVLF - External air temperature sensors, boiler, coolant on the supply pipeline, at the outlet of water from buffer containers , DHW battery, water at the entrance to the GVS tank battery from the solar collector, at the water inlet to the buffer container, at the water inlet in the solar collector, water in the solar collector; MK1, MK2, U1 is a three-way mixing valves with an electric drive (the contour of the heating system, to maintain a given temperature at the inlet to the solid fuel boiler, the valve between buffer capacity and solar collector); P1 - Pump of the mixing circuit of the heating system
It provides maintenance of a given temperature at the inlet and outlet of the boiler, water temperature control in the solar collector, switching water flows entering the solar collector from the GVS tank and buffer tank. Possible parallel weather-dependent work with a mixing circuit of heating.
To create large heating systems, it is often necessary to connect boilers to the cascade, with which controllers also cope (Fig. 5). At the same time, optimal parameters and accounting hours of each heat generator are ensured.
Fig. 5. Connecting gas boilers in cascade: AF, WF1, WF2, VF1, VF2, VF3, SF, RLF1, RLF2 - Outdoor air temperature sensors, boiler, heat carrier on the supply pipe, GVS battery tank, water in return pipe; MK1, MK2, MK3, R1, R2 - three-way mixing valves with electrical drive
In any case, for specific conditions, you can choose the most appropriate scheme, which manufacturers of control devices offer dozens.
Perspective -Enversal controller
Currently, the trend towards the complication of systems for climation of buildings is noticeable. The developers of controllers are also appropriate for this trend.
These devices already allow you to send data on the operation of mobile communication systems or through the Internet. For example, in the US, a wide distribution was obtained by touchscreen monitor with the possibility of integrating with android smartphones operating systems. Thus, it is possible to remotely control the parameters of the work of climatic systems that may include not only heating, A and ventilation systems, air conditioning, security and fire systems.
Since different manufacturers have protected their products by various data transfer protocols, currently there are controllers that allow you to use all existing protocols (for example, Centraline (Honeywell)). This is especially true if regulators are installed on the modernized objects.
However, with an increasing complication of systems, a question arises to create a kind of universal controller. This is currently the main prospect and task for developers. A single controller, depending on the software laid in it, can be used to control various building engineering systems. This is a kind of small computer for which you only need to install "Soft" to specific tasks and directly under a specific object to program.
The complexity of the implementation of freely programmable controllers is primarily in the high cost of the software. In addition, the question of compliance with the level of user preparation level is relevant, the presence of a qualified service personnel and exclusion of unauthorized interference with the work of control devices.
aw-therm.com.ua.
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Controllers for heating and DHW systemsdionabms.ru.
Heating and DHW controllers
Home Catalog of goods Aries Meters-regulators Aries Aries Controllers for heating systems, DHW, ventilation, air conditioning control controllers Heating systems and DHW
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The industrial controller of Aries TRM32 is designed to control and control the temperature in the contours of heating and hot water supply.
are available
To comparison
The industrial controller of Aries TRM32 is designed to control and control the temperature in the contours of heating and hot water supply.
are available
To comparison
are available
To comparison
The industrial heating controller and DHW Aries TRM32 is designed to control and regulate the temperature in heating and hot water circuits.
are available
To comparison
are available
To comparison
Controllers of heating systems and DHW TRM132M in a complex with primary transducers, MP1 expansion module and actuator mechanisms are designed to control and control the temperature in the heating and DHW circuits, displaying the measured temperature and operating modes on the built-in indicator and generating control signals in the built-in output elements and the output elements of the module MR1.
Controllers for heating systems from Aries are characterized by increased reliability and noise immunity. Such modifications of devices, like TRM32-SK4 or TRM132M, are made in hulls made of impact-resistant ABS plastic and are able to effectively work even in the toughest industrial conditions. These devices not only regulate the temperature of the heating circuits and the DHW, but also carry out the protection of the system from overstating the temperature of the reverse water returned to the heat center.
If you need a reliable and accurate controller of heating control, we advise you to pay attention to the devices that are manufactured under the brand of Aries. These devices support the specified temperature level in the system circuits. Also, heating controllers provide for the ability to automatically switch modes, such as "day-night". The device has a slight programming and an understandable interface.
In addition, controllers for heating systems perform and protective function. They regulate the temperature of the reverse water returned to the heat center. In the case of overheating, heating controllers reduce the indicators to normal value, thereby protecting equipment.
Why should you buy a DHW controller on our site?
Here you will find controllers for heating systems, differing by:
- the number of inputs-outputs;
- type of hull;
- interface for the configuration of data on a PC, etc.
Each DHW controller submitted on the site meets international quality and safety standards, which is confirmed by the relevant certificates. In addition, we offer each buyer:
- Low prices. We implement controllers for heating systems at producer prices. We also have various discounts and bonuses.
- Warranty and post-warranty serviced. Specialists of the company "Ovensplektavtomatika" have a minimum of 5 years of experience with such devices as controllers for heating systems.
- Delivery throughout Russia. We will bring your controller controller by the courier service in Moscow and the region. In the regions we send the devices by mail, express mail and transport companies.
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