Single-phase UPSs SW and ST series with an output power from 500 was to 3 kV are designed to ensure reliable and continuous nutrition of automation of gas boilers and circulation pumps during power supply and unstable network voltage.

In the models of the online UPS (UPS) of the Russian manufacturer, the GK "CHTIL" uses the technology of double transformation of electricity, due to which the power supply of gas boilers is provided by the variable voltage of the ideal sinusoidal shape and maximum accuracy. The UPS has improved technical characteristics that meet the mandatory requirements for the correct operation of boilers and auxiliary equipment. In addition, devices have ample opportunities for scaling battery life, remote control and management.

Advantages of the online UPS "CHTIL" for gas boilers:

• instant Accuracy Switching Load Power on Battery Batteries (0 ms);
• power supply of the boiler with stabilized voltage with perfect sine and high accuracy (± 2%);
• neutral for high-quality flame sensor in phase-dependent boilers;
• high-quality work from gasoline / diesel generators;
• absolutely silent work in models with a capacity of up to 1000 VA;
• a comprehensive system of protection with the auto-restoration after eliminating the cause of the accident;
• a wide range of accessories for the placement of external batteries and monitoring.

Features of the UPS "CHTIL" for gas boilers

• Convenient Wall Mounted Fastening of the SW Series and Battery Modules to them allows you to arrange devices next to the boiler.
• The maximum performance is provided with a high power coefficient (PF \u003d 0.9).
• The "BY-PASS" feature provides continuous operation of the load in the event of a breakdown of the UPS or its overload.
• Filtering electromagnetic and radio frequency interference input and output filters EMI / RFI.
• Cooling with low noise fans with smooth and intelligent load adjustment (in models from 1000 VA).
• Self-diagnosis of the device when starting and during operation.
• LCD display with an informative interface showing the status of the network, the power of the connected load, the state of theBB and other important information.
• The metal housing protects the device from mechanical effects and provides better security in the fire safety plan.

Criteria for the choice of UPS "CHTIL" for the boiler

Please note that not only boiler itself, but also adjacent equipment, including circulation pumps, should be protected from voltage drops. Therefore, in the model range of GC "Shtil" presents solutions with a capacity of up to 3 kVA:

• with wall location (500-1000 VA);
• with outdoor location (1-3 kV).

In addition, we take into account the fact that in various situations, different indicators on autonomous work may be required. Our company manufactures UPS for gas boilers in the following configurations:

• with built-in battery and low-power charger for offline operation short period of time;
• without built-in batteries, but with high power, providing autonomous functioning for a long time from external batteries.

We also offer the UPS for boilers. You can implement the selection of the required option yourself - through the presented tables of the backup work, or to consult from the staff of the GC "Shtil" - all recommendations are provided free of charge.

Owners of country households know how many problems can deliver unsatisfactory operation of electrical networks. After all, on how stable it functions, it depends on how warmly and cozy will be in your home. And if in your settlement, there are frequent interruptions with electricity, then it is especially noticeable by the consequences of them in the cold course of the year. Therefore, you should take care of the purchase of IPB for boilers. This device will help organize uninterrupted operation of heating equipment in the event of an unexpected failure in the work of the power grid.

Where and for what is used

Most of the models of heating equipment are controlled by electronics, the work of which is not possible without connecting to the power grid. And since the boilers are one of the domestic devices that is used around the clock, the foremost owners connect it to the network via a boiler uninterrupted.

Such devices today are presented in a wide range, they can be assembled independent if desired. The main sphere of their use is homemade boiler.

Device and design

In a constructive plan, this is a small device having a parallelepiped form. In size, it is not a more car battery and can be installed on the floor next to the boiler or on the wall. The market presents various models of uninterrupted boilers, among them there are also intended for wall mounting.

Despite the fact that the body of the device is quite durable, yet it is better to keep it in place inaccessible for children and animals.

As for the internal device of the UPS for the boiler, it includes two main blocks:

• Control of the boiler power switching system;
• Accumulator battery.

The first controls the presence of electricity and switches the boiler to autonomous feed in case of interruptions in the central network. The second block or battery carries out the power of all electronic boiler systems during the power to turn off the electricity.

But since the battery comes with a permanent current of 12 V, then to convert it to a voltage variable 220V using an electronic converter or an inverter. This device is also able to control the level of charging the battery itself.

Criteria for choosing uninterrupted

Before you go for the purchase, you need to get a maximum of information about this device. The first from which should be started is to familiarize yourself with various models of uninterrupted power sources for boilers.

Connection scheme

Depending on the principle of operation, the devices are divided into:

1. Reserve;
2. Linear interactive;
3. Double transformation.

The first are considered one of the easiest. They are most often used in a complex with gas heating units.

The backups are equipped with a stabilizer, which allows them to apply them in networks with a stable voltage. The device is triggered while reducing this parameter to 175 V, while switching the unit to power from the battery.

Among the wide variety of reserve uninterrupted boilers, brand is most popular for the boiler.

Linear interactive uninterruptible power supply for the boiler, in contrast to the previous device, is equipped with a low accuracy stabilizer. The charge of the batteries in such devices is able to support the operation of the boiler for 15-20 minutes.

We look at the video, the criteria for selecting the model:

However, the line of this equipment includes the UPS for the boiler operating from external batteries. They are characterized by longer support for the work of the unit up to 10 hours. One of the most reliable models are samples of the RESANT company.

UPS for a double conversion boiler may have built-in batteries. However, among them not all models have chargers capable of charging high power batteries. One of these devices is the calm.

In addition to type of uninterrupted boiler, you should pay attention to other parameters. For this you need to get acquainted with the accompanying documentation.

An important point requiring special attention is the current entry of the current sinusoid 500 VA. If other characteristics are written in the supasport, it is better to give up the purchase, since for the gas unit, this parameter is one of the main.

Also, when choosing an uninterrupted power supply for boilers, the power of the unit is taken into account. At the same time, the parameters of the acquired equipment must exceed it at least 5 times. By purchasing a double-conversion device seeks to perform not only its main function, but also stabilizing the voltage on the network.

Popular models

Among the most popular devices, two models can be distinguished in the domestic instruments:

• Teplocom;
• Skat.

The UPS for the boiler is presented with two models that differ in the load capacity and the voltage range at the input. For the Teplocom-300 device, these parameters are 270 W and 185-245 V, and for the modification of Teplocom-1000 - 700 W and 160-300 V.

In addition, the first from the UPS under consideration for the boiler has built-in stabilization, an external battery is conveniently connected to it. The device is intended for use with gas units and is equipped with several levels of protection:

• Load;
• Network.

UPS for the second modification boiler also has built-in stabilization and the ability to connect an external battery. It uses high frequency interference protection and there is an indication of various modes of operation, automatic bypass. These devices are also used to supply gas aggregates, allowing electronics to work in correct mode.

Watch the video about the model SKAT UPS 1000:

UPS for boiler SKAT is also represented by various models. Among them, the SKAT UPS 1000 device is most popular. Its rated voltage is 220V with a payload capacity of 1000 VA. The equipment of this brand is distinguished by the high accuracy of the output parameters and the ability to operate in the range from 160 to 290V.

Such devices are used to ensure uninterrupted nutrition of heating units and is effective when working with large starting currents.

Model SKAT UPS 3000

IPB for boiler SKAT UPS 3000 has a 3000 W power with high voltage accuracy. The device is distinguished by a large range of input parameters from 115 to 295 V. The maximum load factor in such devices is 3 to 1, with a pure sine voltage schedule.

The equipment is designed to work with heating units and can reliably filter high-frequency interference. Such UPSs can operate in automatic shunt mode, have convenient equipment switching and can be used with a simultaneous connection of several acb.

Installation and operation

The use of uninterruptible power sources allows the heating boiler to work up to 10 hours when the electricity is disconnected. In addition, they must ensure complete protection of electrical equipment from voltage jumps in the network. But, like any other equipment, the UPS need regular preventive maintenance.

According to the existing regulatory documents, prevention for such devices should be carried out at least once a year, but more and more, if it is installed in a room with a high level of dust.

Connection diagram IPB

Most modern heating boilers offered in the Russian market are volatile. Compact size of the boiler, savings in operation attract more and more consumers. By installing such a boiler, you should immediately think about the uninterrupted nutrition of the boiler. Many lowered this moment. But none of us is immune from emergency situations in the power grid. Electricity can turn off for a long time, which means that the boiler nutrition. That in winter it can lead to a complete defrost of the heating circuit of the boiler. The cost of restoring the entire system, the boiler is huge. We recommend it in advance to think about the uninterrupted nutrition of the gas boiler, installing special UPS for boilers .
There are two types of UPS for the boiler:

Uninterruptible food for backup boilers

If there is a power grid in a specific voltage range (the range may vary depending on the manufacturer) runs directly from the network. In this mode, the output signal form fully corresponds to the input. When the voltage exit outside the specified range or the disappearance of electricity, goes into operation mode from the battery, continuing to provide the power supply of the boiler. Continuing to monitor the appearance of electricity. In this mode, a 220 volt voltage with a clean sinusoidal signal is supplied to the boiler (the signal shape may be different depends on the manufacturer and characteristics). There is a process for converting a constant voltage of 12 volts with an AKB to an alternating voltage of 220 volts necessary for the boiler. If the battery voltage reaches the minimum critical level of discharge, the UPS for the boiler is turned off. This saves the operation of the battery. When the mains appears, switches to direct mode, simultaneously, including charging the battery to 100% of the state. Therefore, this mode is called the backup, if there is a power grid, it is in stock (reserve). And the work is included only in the absence or output of the level of working limits.

UPS interactive type

They are also called online, always included. General words such a source of uninterrupted nutrition can be called a stabilizer. Since even if there is a network, the variable signal is converted to constant voltage. The second step, there is an inverse conversion of a constant voltage into a 220 volt variable with a clean sine at the outlet, ideal for the boiler. When the inlet power supply is disappeared from the battery. The input range of work in such uninterruptible power sources is much wider. Capably smoothed jumps, voltage failures. Removing various kinds of network interference, due to the construction of its own output sinusoidal signal 220 volts, optimal for any boiler. They stand a little more expensive, but the number of functions performed and protection justify this cost.

Most of the private houses are equipped with a modern heating system, including energy-dependent boilers, elements for circulating system. But the state of our power grids, weather conditions cannot provide stable power supply of the boiler. Take care in advance by setting the boiler uninterrupted nutrition along with the circulation system. Installation of an uninterrupted power supply system will save you from problems with the winter heating system. When the boiler stop can lead to financial costs to restore the entire system. It remains properly pick up the UPS for the boiler with the battery. Consider several basic moments for the right choice.

Choose the UPS correct

I will analyze the first step what the UPS is. The full name is an uninterruptible power supply. Some confuse this name with the inverter. It is not right. Inverter, based on the name, inverts voltages. In our case, it converts a constant voltage from the battery (AKB), into an alternating voltage of 220V, a frequency of 50Hz. Depending on the manufacturer, the form of the output signal may be pure sine (sinusoidal form) or approximate (approximated sine). And this is his whole feature. And the uninterruptible power supply includes the function of the inverter, the network control function and the battery charge, the switching function to the battery when the voltage is lost in the power supply, return when network appears. Therefore, the source of uninterrupted power supply, which provides uninterrupted nutrition, is completely automatically.

Main characteristics for the right choice

• We determine the maintenance voltage where the boiler is planned. It is enough to measure the voltage by a multimeter in the morning and in the evening. Why do we relate to important characteristics? Because the UPS for the type of offline type boiler is operating in a certain range allowed by the Russian Goste. The limits of this range of 190-245 volts. Outside the range, many autonomous power sources automatically go to operation mode from the battery, even if there is a power grid. The capacity of the battery is designed for a short period of time. If you have a voltage of the electrical outlet goes beyond the range, then you must install before the power supply for the boiler, the voltage stabilizer. The required power is small. Approximately 500 - 1000va, quite enough. The second version of solving a voltage problem, installing the UPS for the ONLINE boiler type. Such autonomous power supplies have a wider range of operation from the inlet power grid. The range is 150-260 volts, and some models have 100-300 volts. By installing such sources, the consumer receives an additional bonus - a built-in frequency interference filter. Naturally, such autonomous power sources have a cost more. The decision takes the consumer itself in its capabilities. The cost of such a uninterrupted can even exceed the cost of the UPS OFFLINE type plus inexpensive voltage stabilizer. Buying in our store a set of UPS 300 plus Akb 100A / h, get a voltage stabilizer as a gift, without any additional conditions.
• The following main property form output. There is a lot of different types of uninterruptible power supply. For example, the uninterruptible power supply for the computer has a rectangular output form. This form is categorically not suitable for pumps in the heating system. Pumps start working with interruptions, buzz. The service life is immediately reduced at times. Reliable operation of the entire heating system, including pumps, is possible only with the pure sinusoidal form of the output signal after the uninterrupted block. Do not listen to sellers who will start offering an approximate sine (approximated). Although this form of the signal is almost similar to the real sinus, but still the boiler and pump work with interruptions. There are interruptions or false responses of the boiler control board. Only a pure sinusoidal signal at the exit of the uninterruptible power supply will ensure uninterrupted operation of the boiler and your heating system as a whole.
• The last step is determined by the battery life for the boiler. Everything is much easier here. Time depends on the power consumed of your boiler (the standard version of the boiler with one pump does not exceed 100-150W) and the battery capacity. But there is a submarine stone. Do not immediately throw it, buy a battery for a maximum capacity uninterrupted. You must first examine the characteristics of the uninterrupted person. The manufacturer in the characteristics table indicates the maximum permissible power of the battery, its type. If the table indicates the capacity of the battery no more than 150a / h, then you can install any battery in the range up to 150a / h. What will happen if you still install a big power on the UPS for the boiler? The battery will not receive a full charge. If you decide to purchase a simple car battery, then you need a couple of times a month, the full cycle of the discharge. Simple language, train acb. Why? Car batteries are designed for daily charge, discharge. If the battery is worth a long time without work, then it starts to collapse. If not for this time, then we recommend special battery for uninterruptible power source. Here is the principle reverse. Such batteries are enough to spend the training cycle two or three times a year. The service life of such akb is very large, about 5-15 years, depends on the modification. Buying a complete set of UPS + batter for a boiler, you get a 10% discount on any battery for an uninterrupted block.

Modern gas heating boilers are "smart" devices, the complex electronics of which allows with a high efficiency to maintain a comfortable temperature in the house. The presence of a control panel and circulation pumps makes such systems by highly dependent on high-quality and uninterrupted power supply.

A uninterruptible power supply for a private house heating system must meet a number of mandatory requirements that will allow your boiler and circulating pumps to work correctly, reliably and without errors:

1. Availability pure sinusoidal outputwhich is critical for pumps. This means that the usual UPS for computers (APC Back-UPS, IPPON Back Office, etc.) with Meandra / approximated sinusoid at the output is not suitable.
2. Availability through neutrals For the correct operation of the flame sensor phase-dependent boilers. In this regard, many European brands are not suitable.
3. Availability powerful charger (from 5a), which allows you to connect external batteries necessary to provide long-term offline work in case of disconnection of electricity.
4. Power reserve The device has at least 40% in relation to the amount of electrical capacity of the automation of heating and circulation pumps.

In our market there are three types of heating boiler solutions:

1. Sources of type OFF-LINE without voltage stabilizer. The most popular: Teplocom ,.
2. Line-interactive uninterruptible with primitive relay stabilization. Popular brands ,.
3. UPS type on-line With high-precision stabilization of double conversion. Brands:, (Inelt).

How to choose the right UPS type for the heating boiler?

• If you have : First, a simple wall boiler without complicated automation; Secondly, stress in the village stable(does not sharply jump, there are no "blinks" and sumps); third, requires battery life up to 10-12 hours, In order to save budget, you can pay attention to the first or second type of UPS. [ Important!In the case of harsh voltage jumps, the output interference and distortion in the operation of the built-in relay stabilizer can lead to an error and even damage the sensitive electronics of your boiler.]We note that for the first type OFF-LINE, it is necessary to buy a separate electronic / inverter voltage stabilizer. Examples of ready-made solutions:

Budget sets for wall boilers
100W 2 hours 40min	100W for 9 hours	100W for 14 hours
Price: 13 700r.	Price: 20 500r.	Price: 26 000R.

• In all other cases, we recommend using uninterruptible power supply ON-LINE type. (See detailed), which save the owners of boilers from all possible power problems.

Uninterruptants of this class provide:

1. Instant voltage stabilization with accuracy 1% (in line-interactive accuracy 10 times lower, switching windings using a relay can cause an error in automation)
2. Protection against network interference (EMF) and voltage bursts
3. Uninterrupted meals with switching to work from batteries for 0 sec. (Line-interactive switches for 20ms with interference in the form of the output signal)
4. The perfect "sine" at the output with distortions (books) less than 3%
5. The presence of end-to-end neutral for the correct operation of the phase-dependent boilers
6. Output power 800W (1000VA) and above

Buderus boiler with complex control automation

Rating of the best UPS for ON-LINE gas boilers

The top is based on the sales statistics, the number of service cases and the expert opinion of our specialists.

I. UPS with one external battery (12V)

We recommend using a single external battery connection models with small heating boilers with maximum load up to 300-400W for small or medium-sized battery life. The market presents 2 significant models:

1st place. ~ 18900r.

This uninterrupted person, adapted by our engineers under the Russian conditions, the production of Helior Corporation (www.heliortec.com) is steadily ranked first lines in sales reports not the first year. Causes of popularity in addition to the price available:

• The lowest noise level of fans among analogs (rotation speed depends on the load)
• There is a special mode of operation from the generator (the permissible range of incoming frequency is expanding)
• Compact sizes and ability to operate in two positions
• Highly high reliability when working with heating systems

To weaknesses can be attributed:

• The relatively narrow range of permissible values \u200b\u200bof the incoming voltage, which the source can "pull out" without transition to the battery.
• The average charge current, which allows connecting the battery with a capacity from 30 to 150Ah.

2nd place. ~ 21 450r.

New model in the Monolith line from Inalt. The product of the Chinese plant Kehua Tech (www.kehua.com) adapted to the Russian market.

The advantages of the UPS:

• A good range of input voltages 110-300V without transition to AKB.
• Charging Current 12A, which is relevant when the battery is connected to 250 and.

The disadvantages include:

• High price per device
• New model for 12V for manufacturer

II. The best UPS by 24V under two external batteries

Models with the connection of two external batteries showed themselves more steadily for a long time of autonomous work in high load conditions. A sequential connection to 24V allows you to reduce the load current by two times both on the battery and on the source inverter, which is positively reflected on the reliability in the conditions of high load and the presence of starting currents.

1st place. ~ 20 800r.

The first line in our ranking of the best UPS is Stark Country online by 24V, which is produced at the largest Taiwanese company Voltronic Power (www.voltronicpower.com.tw). Note that in 2017 the models were supplied to Russia only by 36V. In 2018, a model was updated, which is now designed to connect two external batteries.

We allocate the following advantages:

• Minimum amount of service cases
• High and customizable charge current up to 16 amps to connect Akb of large tanks
• Attractive front panel design
• A wide range of input voltages from 110 to 300V.

Disadvantages:

• Limited displays
• Medium level of noise
• High price

Stark Country 1000 Online 16A Uninterderebed is recommended for homes with a heated area of \u200b\u200b200-400kv. With the need on average and long-lasting battery life (8-16 hours). For example, in a set with two batteries by 200AH, it is capable of autonomously nourishing a gas boiler with pumps in a 350m cottage for ~ 13h. Single-phase models of 2QA, 3QA, 6QA and 10QAV - for uninterrupted power supply or all at home are available for sale.

2nd place. / ~ 18 650r.

Hiden and 2 Delta batteries 100 hour

The second place is occupied by the product under the Salt / Hiden brand of the KSTAR plant, which is widely published our market in 2018 and since then it has been remarkably proven as reliable and optimal price / quality solution. This model could take first place in our rating by 24V due to its advantages:

• the quietest in his classThanks to the well-thought-out cooling system and intelligent speed of rotation speed of the cooling fan
• conclusted in a wide range of charge current (1-12a)
• displays the remaining work time offline
• work in a wide range of input voltage without transition to batteries
• aBM technology ("smart" charge) prolongs the life of the batteries
• compact sizes and modern design

Disadvantages:

• the need for starting configuration UPS for correct operation

If there is a challenge of the uninterrupted power supply of the gas boiler and pumps with a power of 150-400W for a while up to 8-10 hours, then the choice of this UPS will be one of the most successful.

3rd place. ~ 17 400r.

The 24V model inherits all the positive and weaknesses of the model to 12V, but allows you to connect an increased battery bank enlarged. As a result, Helior Sigma 1ksl is the optimal option for the uninterrupted nutrition of the boiler and the pumps of the middle cottage (200-350m.kv.) With low or medium autonomy (up to 6-8 hours). The manufacturer's lineup has a model with built-in batteries for autonomy to 30 minutes - we recommend that when there is a generator with automatic starting.

4th place. (Removed from production)

On 4th place there are two fully identical sources with different design front panel production of the international concern K-STAR (www.kstarpower.com). The UPS carry service in the houses of thousands of our customers throughout Russia. To the positive parties can be attributed:

• Acceptable price
• High charging current that allows you to connect batteries of large capacity for increased backup power
• A wide range of permissible stresses in the input - from 110V to 290V.
• Good reliability under the right operating conditions
• A large number of parameters to display on the display

Disadvantages:

• Connect can Akb starting with 55 amps (high charge current)
• Medium level of noise

At Zenon and Tieber should pay attention if necessary to provide a long battery life (more than 10 hours) with low capacity of the supply network. At the end of 2016, the source received an update and is now available for order. In the event that the power of the boiler and all circulation pumps exceeds 600Ws, you should pay attention to the sets of 2000W (1600W) or even 3000W (2700W).

Top uninterruptants for 36 volts 3 acb

Set with 3 100 hour batteries for long battery life

Uninterruptants for 36V the first appeared in our market. 3 external batteries allow you to ensure the maximum possible battery life and reduce the load current on the battery and the inverter, which has a positive effect on the assumption, including on the loads close to the maximum.

1st place. ~ 16 400r.

• Informative display
• High resistance to problems on load
• Democratic price

Disadvantages:

• Unstable presence in the manufacturer's warehouse in Russia
• Low charge current - 6a.

This UPS model is optimal for reliable and long-term backup power. Note that single-phase high-power models (3, 6 and 10 kA) have proven perfectly for reserve nutrition of medical and household equipment.

2nd place. (Removed from production)

The once most popular source under the connection of the external batteries of the Chinese plant Kehua Tech (www.kehua.com), adapted by Russian engineers from Inalt to the Russian market. Pros:

• High reliability
• Middle Input Voltage Range 120-295V

• Outdated design
• Low charge current 5a
• Non-informative display

In the ranking, this UPS is represented as a tribute to a high level of reliability. The lack of timely modernization, low charge current and the high-price policy of the importer led to the loss of a very visible market share with this device. In 2016, the product line appeared in the production line of the INELT 1000 on 24V with the charge current 6a, sales experience and operation will show the quality of this product in the future.

Before buying and editing the UPS for the boiler, read the manual:

P.S. In our top of the best uninterrupted boilers for boilers of heating, we presented the brands known to the wide range of market professionals. Much of what is presented in the market and is not presented in this article is products from the same plants under other names. We hope this rating will help you with the choice of the best option, but at your service and engineers of our company that will help you choose and establish the best uninterruptible power source for gas boilers.

• Finished sets

Modern gas boilers of water heating are efficient and economical, but, unlike old, they have a weak place. All new heating boilers are equipped with an automatic system, and the system includes a circulation pump that require high-quality and uninterrupted power supply. Moreover, the boiler may turn off on the internal protection under the reduced voltage of the network. If the problem of pulse interference and voltage drops can be solved by connecting the boiler and equipment of the heating system through the stabilizer, then in the event of a turning off the electricity, the stabilizer will no longer help - the automation will turn off the boiler, and it will be possible to run it only after the appearance of power supply. Disabling the heating system can be fatal for the entire system, especially in a strong frost. And even if you do not have problems with power supply, no one is insured against the surprises of nature, lines and other emergencies. And the low voltage in some settlements is almost the norm. Therefore, it is strongly recommended to connect a gas heating boiler through an uninterruptible power supply - UPS (UPS).

It should be noted that the Alternative to the UPS is an autonomous diesel or gasoline power plant. But also such autonomous power supply systems are advisable to use in conjunction with UPS, with large heated capacities and the possibility of installing such a generator. In the overwhelming majority of cases, the optimal solution will be an uninterrupted power supply that is properly chosen in power and technical parameters. It will be much more profitable for the price, moreover, it does not require the streaming costs of fuel (gasoline, diesel fuel). And the modern batteries in the UPS lack for 10-15 years of operation. There is another option of the autonomous power system on solar panels - quite promising, but still expensive.

What you need to know when choosing a uninterruptible power supply (UPS) for a heating boiler?

We immediately note that connecting a regular car battery directly to the gas boiler will not work, because the battery gives only a constant current voltage in 12 V or 24 V. Therefore, to connect the autonomous power supply to the boiler, a device that converts a constant battery voltage to the variable network 220V . In addition, the transformation should be high enough (sinusoid shape), to power the electronic components of the system. These are the devices and are called an uninterruptible power supply, abbreviated by UPS or UPS.
Functions of such devices - invert the constant voltage from the battery in 220V AC in the absence of voltage on the network, the stabilization of the output to 220 V, if there is on various at the inlet (for example, from 100 V to 300 V), eliminate overvoltage throws, as well as charging the battery when need. Such a device is fully automatic and provides an unstressed transition to autonomous power without breaking the boiler and the heating system. When the power appears, it automatically turns off the battery and goes into battery charging mode. Charging batteries occurs according to a specific algorithm that allows us to significantly increase the life of the batteries.

But not all UPS provide all these features. UPS there are two types:

The first type is an OFF-LINE UPS. Automatically switch power from the battery when electricity disappear on the network and automatically charge the battery when necessary. Those. If there is a voltage in the network, the device is not involved in any way, the current goes through it with transit and, accordingly, does not stabilize. If at the inlet 180 V, then the output will be 180 V. The cheapest uninterruptants for a computer that is exactly this type. It is worth noting that the pulse power supplies of computers, televisions allow us to work normally in a wide range of input voltage (140V-250V, and a wider range). Gas boilers are mostly demanding in this regard and at a voltage less than 190-200V can be disconnected. In the instructions do not indicate this limit - see the forums or recognize the specialists with regard to the brand of your boiler.

The second type is the UPS on-linewhich are involved all the time. Voltage in UPS type On-Line stabilizes with double conversion inverter: First, the alternating voltage of 220V is converted to constant 12 V or 24 V, then the constant voltage is transformed into an alternating voltage of 220V. Since the constant voltage of 12 V or 24 V is always stable, then when converting this voltage to an alternating current of 220V, there are also no oscillations, sections, or voltage shots occurs. As a result, the ON-LINE UPS at the outlet always give a stable sinusoid and voltage. They differ in the quality of the formed sinusoids. In addition, the UPS with a built-in voltage stabilizer allows you to provide a stable voltage for consumers without switching to battery mode. This allows you to significantly save the battery resource. The uninterruptible power supply with a voltage stabilizer of a double transformation is today the most accurate and reliable, and unfortunately, the most expensive.

A few more comments on the choice of UPS for the heating system

Cheap computer UPSs have a rectangular output form at the exit, which is unacceptable when pumping pumps, fans and other inductive loads. To operate the boiler, a voltage with a clean sinusoid at the entrance is required (providing a smooth torque of the engine).

Starter batteries are designed to work on short-term powerful loads (launch of the starter), require maintenance and distinguish with sulfuric acid pairs during operation (not allowed to use in closed rooms in close proximity to people). The average service life of the automotive battery in the UPS system is not more than one year.

How to calculate the power of the UPS for the gas boiler and the heating system

When choosing UPS for gas or other boiler It should be noted that the shape of the output voltage of the uninterrupted man should be sinusoidal, since the boiler contains the consumers, critical to the input current form (fan, circulation pump, gas valve, electronic unit).

Right calculated and selected uninterruptible power supply system for boiler It will avoid problems associated with the shutdown of the boiler or the failure of it due to voltage drops, as well as to ensure its offline work during the required estimated time.

In the classic version, the electrical power of heating equipment (do not confuse thermal) consists of the power consumed of the boiler itself and the circulation pump. This data can be taken from the documentation or on the equipment nameplates.

In gas boilers up to 25 kW for warmth, as a rule, there is one pump. In more powerful, industrial boilers, there may be two or more pumps. In most cases, the pump with one pump consumes the 90-150W electricity and such a boiler with a sufficient stabilizer or UPS with a capacity of up to 300 W. Accordingly, if two pumps are used in your heating system - then you need to take the UPS at least 400-500W. In general, the power of the UPS should correspond to the aggregate power of all devices driven from it. And do not forget also about power reserves, at least 20-30%.

Obviously, the greater the battery capacity - the longer the battery life of the UPS. Approximate time of the continuous operation of the UPS can be defined according to the table below.

Another important indicator at the UPS is the power of the charger. As you know, the greater the battery capacity - the greater the current is necessary to charge the battery completely. Approximate ratio - 1 to 10. Those. To charge the battery with a capacity of 60 a / h, the charge current 6a will be required. It is possible to charge and large currents, but this leads to rapid wear of the battery. If the charge current is less than laid, the battery does not disappear, as a result of which it will be "stamped" (technical term - sulfatization), which will also lead to a decrease in service life.

Calculation of the operation of the uninterruptible power supply

Simplified formula

Calculation of battery life can be carried out according to the simplified formula. To do this: the battery capacity in amps clocks, we multiply on the battery voltage, in volts, divide to a permanent load in watts and get \u003d the number of hours of continuous stand-alone work.
For example, a boiler that consumes 180 V, with a battery with 50 amp-hours will continuously work for 3.3 hours (50 * 12/180).

Refined calculation

If you decide to go deep into the technical characteristics of the UPS and independently calculate the time for the continuous standalone work of your boiler and the heating system - please! To make a calculation, we use the only correct method, but for this you need to know not only the power of the boiler, but also several important UPS parameters for the boiler:

T. - the battery life of the UPS when the network is disconnected, h;
UAB - voltage of one battery, B;
Sak - battery capacity, a * h;
TO - the number of batteries in the battery;
h. - transducer efficiency (H \u003d 0.75-0.8);
Kr - discharge depth coefficient of 0.8 -0.9 (80% -90%);
Kg. - The coefficient of accessible capacity depends on the category of discharge and temperature:
- with one-hour discharge mode, till \u003d 20 ° C 0.7 (70%)
- with two-hour discharge mode, till \u003d 20 ° C 0.85 (85%)
- with decadatholic discharge mode, till \u003d 20 ° C 1.0 (100%);

T \u003d UAB * Sak * K * H * cr * kg / RNAGR

where RNAGR - Load power.

To consider it details calculation of the uninterruptible power supply for the boiler Substitute exemplary values:

UAB \u003d 12 V;
Sak \u003d 84 a * h;
K \u003d 1.0;
h \u003d 0.8;
Kr \u003d 0.9;
Kg \u003d 1.0.

PNA \u003d 150 VA.

T \u003d 12 x 84 x 1,0 x 0.8 x 0.9 x 1.0 / 150 ≈ 4.84 hours

Thus, if your heating boiler has a power of 150 VA and is powered by an uninterruptible power supply with a battery with a capacity of 84a * h to 12V, then the service life will be 4.84 hours.

What is the best possible UPS for the boiler?

Based on the most requested initial data, the most common configuration of the UPS for the boiler is the UPS with a double conversion (it has a constant, stable voltage at the output), 300W operating capacity and short-term peak load up to 1000 W.

What is the most optimal battery for the boiler?

The best value price \\ quality has a 12V 100A battery. The difference in the cost between accumulators 50 amps and 100 amps is only 30-40%, and between AMPER 100 and 120 amps are already about 50%. Thus, as one or more reserve batteries, it makes sense to look towards AKB 12V 100A.

These are reference data, and you will not be difficult for any formula to determine the parameters of the UPS for a particular boiler and the heating system, and according to the known parameters you will already choose the model UPS - which are now quite a lot on the market, as they say on any pocket and taste.