- What is a UPS and why is it needed?
- The main types of uninterruptible power supplies
- How to choose and connect a UPS
- Rating of popular models and owner reviews
Modern gas boilers are crammed with sophisticated electronics that require a constant and high-quality power supply. In the event of a power outage or a power failure, your heater will simply stop working and you will be left to freeze in your private country house. To prevent this from happening, the owners use an uninterruptible power supply (UPS) for gas boilers.
In this article, we will talk about why you need an uninterruptible power supply and what types there are, how to choose the best one and connect it yourself correctly. In conclusion, we will consider the models of uninterruptible power supplies (UPS) most in demand among consumers and give some feedback from the owners about their work.
What is a UPS and why is it needed?
We all know the situation when the electricity suddenly disappears, the lights go out and you have to light candles. If you live in a house with central heating, this is half the trouble - sit by candlelight for a while without a TV and a computer.
Photo 1: Uninterruptible power supply with connected battery
It is a completely different matter when you live in the countryside in a private house and use a volatile gas boiler for heating. Without power, it will stop working and soon you will start to freeze.
To avoid this situation, the owner of a country house has several options:
- Use a non-volatile gas boiler in the heating system, in which all automation works mechanically and does not require power supply. There are similar models on the market, but their efficiency is much lower than those controlled by modern electronics.
- Connect a non-volatile boiler to a gas boiler with an electronic control unit. This option is certainly good, but expensive. costs will be required to purchase a second boiler and connect it to the heating system.
- Completely abandon gas or install a solid fuel backup heater, for example, such as. A two-boiler system will also be very expensive, and heating a house with wood and coal has its own significant drawbacks.
- Buy and install an uninterruptible power supply for a gas boiler, which will allow the heating device to continue to function until the mains voltage appears again. This option is most preferable both for ease of installation and for financial reasons.
Let's see what a UPS is, what main blocks it consists of and how it works. Uninterruptible power supply includes:
inverter
The inverter for the heating boiler plays a very important role. It converts the 12V DC voltage from batteries into AC 220V with an ideal sinusoid shape, which is necessary for the correct operation of the gas boiler automation and heating system.
Voltage regulator
In order to bring low-quality power supply to the level and type necessary for the correct operation of the electronics, it is used. There are both implementations in one block with an inverter and separate devices.
Rechargeable batteries
One or more built-in or external batteries accumulate charge and, in the event of a power outage in the main network, serve as a power source for the gas boiler and other devices of the heating system.
Photo 2: Connecting an uninterruptible power supply to a gas boiler The principle of operation of an uninterruptible power supply is quite simple. In normal mode, the gas boiler is powered by the mains and in parallel charges the UPS batteries. At that moment, when the power supply suddenly disappears, the uninterruptible power supply switches to battery operation until the mains voltage reappears. When the power supply is restored, the uninterruptible power supply returns to normal operation from the network and the battery charge.
Back to indexThe main types of uninterruptible power supplies
It seems that the UPS operation scheme is simple and clear, but there are various options for its implementation. From which route the voltage from the mains enters the gas boiler or other device of the heating system, there are several main types:
Offline
Offline type UPSs are quite simple. They consist of a battery pack, a rectifier, an inverter and a switching relay. The rectifier converts the 220V alternating voltage into a 12V direct voltage from which the batteries are charged. The inverter, on the contrary, from a constant voltage of 12V makes an alternating 220V with an ideal sinusoid shape, which is great for powering a gas boiler.
Photo 3: Scheme of operation of an offline type UPS with a gas boiler As long as the voltage in the network is at the proper level, it is supplied directly to the load and to charge the batteries. When the power supply in the network disappears or falls below the permissible values, the relay switches to the battery pack and the load is powered by them.
The main advantage of uninterruptible power supplies of this type is the relatively low price. However, they also have disadvantages, such as the lack of voltage stabilization and the delay in switching the relay. When using offline uninterruptible power supplies, the system should be additionally equipped with a voltage stabilizer.
Line-interactive (Line-interactive)
In their structure, they completely copy the offline-type UPS, but with one significant advantage - a voltage stabilizer is installed at the input. Thanks to this refinement, the number of switching from the network to the battery and vice versa is reduced.
Photo 4: The principle of operation of the linear-interactive power supply source Line-interactive models last much longer than offline models. However, at the moment of switching the relay, albeit a very short one, the gas equipment remains without power. This shortcoming is deprived of the following type of BP sources.
Online (On-line)
In online-type uninterruptibles, everything happens a little differently. The mains voltage passing through the UPS is subjected to double conversion. At the first stage, the rectifier converts the 220V AC voltage to 12V DC, which is supplied to the battery charge and to the inverter. The inverter does the reverse conversion and an ideal sine wave of 220V is supplied to the input of the gas boiler.
Photo 5: The principle of operation of an uninterruptible power supply online type The main advantages of uninterruptible power supplies of this type are the ideal form of the output voltage, as well as instantaneous switching to battery operation. The only disadvantage of such devices is the high price.
For gas boilers, it is better to use an online type UPS, because. it is they who are able to provide it with the voltage of the required quality, but their price is quite high. As a budget option, it is worth considering line-interactive UPS or offline-type devices with an external stabilizer.
So, we have decided on the type of uninterruptible power supply, you can proceed to the choice according to specific parameters.
Back to indexHow to choose and connect a UPS
What parameters should you first of all pay attention to when choosing an uninterruptible power supply for a gas boiler? Let's look at them all in order. Let's start with the most important:
We calculate the power of the UPS
In order to determine this parameter, you need to add up the electrical power of all devices that will be powered by it: a gas boiler, circulation pumps, etc. It should be noted that starting currents can be 3 times higher than the rated ones, so the power consumption of each pump must be safely multiplied by 3. We multiply the resulting amount by 1.2-1.3 as a result and get the required power of the uninterruptible power supply.
Determining the required battery life
Remember how often your power goes out and how long it takes? In accordance with these data, we plan the maximum battery life and purchase the appropriate number of batteries.
Choose the type of battery
For gas boilers, batteries made using AGM and AGM GEL technology are suitable. Many people ask, is it possible to connect car batteries to the UPS for a gas boiler? The use of starter car batteries is highly discouraged. They are designed for short-term load to start the engine. With a long stay in working condition, they will quickly fail, plus they are afraid of deep discharge. Another disadvantage is that the electrolyte is in a liquid state and there is a high probability of evaporation, which is highly undesirable in residential premises.
So we have chosen a suitable UPS and the required number of batteries for it, now we can safely proceed to connecting the entire set to a gas boiler. The installation of the uninterruptible power supply must be carried out in a clean, dust-free room away from sources of moisture. Bespereboynik should not be covered with anything, so as not to interfere with the operation of its cooling system.
Photo 6: Serial connection of three batteries to a power supply source If there is one battery, its positive terminal is connected to the positive UPS, negative to negative, respectively. If there are several batteries, they are connected in series: the plus of each battery is connected to the minus of the neighboring one, the free terminals on the battery are connected to the corresponding uninterruptible power supply connectors.
Winters in Russia are harsh and frosty, so gas boilers of various capacities are often used in our time for a comfortable temperature. In cottage settlements, in summer cottage settlements, in residential buildings, even in apartments, there are often interruptions in the supply of electrical energy. To protect yourself from power surges or it is advisable to buy an uninterruptible power supply for a gas boiler.
Purpose of the device
The boiler must be connected to the electrical network continuously and protected against power outages. UPS (UPS) - an uninterruptible power supply for the boiler keeps the heating system in working condition in case of network failures from several minutes to a day, and also protects equipment from sudden power surges.
What you need to know when buying a UPS for a gas boiler?
Before purchasing a power supply, you should take into account several important points:
- Device power
To calculate the power, you need to sum up all the power indicators of the equipment that will work from the ISP: boiler, pumps, etc. An important point is that the starting currents of pumps can be 3 times higher than the nominal ones. Most often, a gas boiler and pumps consume about 200 W, while the optimal power of the UPS for such a power consumption is 500 W.
- Battery life
Be sure to take into account the approximate time during which there is no electricity. You can take the maximum power outage time and use it to calculate the required battery capacity, or purchase an additional gas generator that will start when there is no mains voltage.
- Battery type
Batteries manufactured using AGM and AGM GEL technologies are ideal for gas boilers. It is forbidden to use starter batteries for cars, as they are designed only for a short load.
- UPS price for gas boilers.
The cost depends on the power of the UPS, the number of batteries and their capacity. As for the ratio of price and quality, the IDP-1 models from Electromash JSC, which were awarded the title of "One Hundred Best Goods of Russia", are very popular on sale.
Features and Benefits
- Designed specifically for Russian power grids
- Generating Perfect Sinusoidal Waveforms
- Switching period less than 0 milliseconds
- The presence of control over the discharge of the battery, which reduces the risk of a complete discharge of the battery
- The products were awarded the title of "100 Best Goods of Russia"
Prices for UPS for gas boilers produced by Electromash JSC are presented on our website. For each device, the duration of the autonomous operation of the boiler, which the UPS provides, as well as other technical characteristics, is indicated.
The article was prepared with the participation of CyberPower Systems
On the eve of the new heating season, many owners of country houses are thinking about the question of what will happen to the heating system in the event of a power outage. Regardless of what caused the blackout - a wire break, a substation overload or a large-scale accident, remember the main rule. A modern heating system needs a reliable source of uninterruptible power supply, which, if necessary, can replace the main network.
So, from this article you will learn:
- Why does the boiler house need a backup source of electricity.
- How to choose an uninterruptible power supply (UPS/UPS).
- What are the nuances to consider when choosing a battery for a UPS.
Features of choosing a UPS for a boiler room
The boiler room of a modern country house is a complex energy-dependent engineering system. For the uninterrupted operation of the heating system, a constant supply of electricity to the boiler and pumps is required, which ensure the circulation of the coolant through the pipes. In the event of a power outage, the circulation pumps stop working, the boiler control unit turns off, and the heating system stops.
With a long power outage in winter, this, in addition to a significant decrease in the level of comfort in a country house, can lead to freezing of the heating system or an emergency. For example, if the heart of the heating system is non-volatile solid fuel boiler, then in the event of a power outage, the circulation pumps will immediately turn off.
A wood or coal boiler, by virtue of its design, will continue to work and will heat the coolant, which is no longer pumped through the pipes of the heating system. If the circulation of liquid in the heating system is carried out by force (the coolant is pumped by a pump), and a heating system with natural circulation (gravitational type) is not installed, the coolant may boil or, in the worst case, simply explode.
You can avoid such troubles if you install a backup power supply system for heating equipment.
Reliable and uninterrupted operation of modern heating boilers, such as gas, pellet or diesel, as well as the entire heating system, is completely dependent on the availability of electricity in the house. Electricity feeds the most important components of the boiler - the circulation pump and the electronic control unit. In the event of a power outage, the heat supply is interrupted.
At first glance, it seems that installing a backup power system for a boiler room is not very difficult. For example, it is enough to connect an inexpensive “computer” uninterruptible power supply to the boiler or make a system based on ordinary car batteries. This opinion is erroneous, because. For the operation of the boiler from the UPS, it is necessary that it meets certain requirements.
Choosing the Right Uninterruptible Power Supply
As mentioned above, a modern boiler is complex equipment equipped with a microprocessor control unit that is sensitive to power surges and, most importantly, to the quality of electricity.
Sergey Larin-Chizh
Depending on the design, uninterruptible power supplies provide output voltage of two forms - pure sine and an approximation of a sine wave. Moreover, the last form of the sinusoid - the so-called. meander (rectangular output signal) is produced by inexpensive uninterruptible power supplies, designed, for example, for use with simple equipment that is not sensitive to the shape of the input voltage.
UPS of this type, in addition to the small capacity of the built-in battery, which is unable to ensure long-term operation of boiler equipment, is completely unsuitable for powering microprocessor boards of boilers, because. the control unit perceives the meander (or quasi-sinusoid) as an error. The circulation pump, if it starts, will work intermittently and increase noise , its resource will also be significantly reduced. In addition, expensive equipment can simply fail.
For the operation of the boiler, circulation pumps, in general , all devices equipped with asynchronous motors, submersible, drainage and sewage pumps, it is necessary that the UPS provides only a pure sine wave at the output. A pure sine wave is also required for some household appliances that can be connected to a UPS, such as a refrigerator, a video surveillance system.
And this is just one of several important nuances that must be considered when choosing a UPS for a boiler room. In addition to the output waveform, the ability of the UPS to withstand high inrush currents must be considered. This is due to the fact that many devices, for example, submersible pumps, which in themselves are already quite powerful consumers of electricity, at the start increase their consumption by 2-3 times their rated power.
Hence: one of the most important characteristics is the ability of the UPS to withstand a 2/3-fold excess of power from the nominal value for 15-30 seconds. But in general, always select a UPS for a boiler room with the necessary margin both in terms of UPS power and battery capacity, based on the calculation of a sufficient supply of electricity to all consumers.
Move on. The principle of operation of the backup power can be described by a simple algorithm. When connected to the mains, the battery or batteries (if several batteries are used) are charged through the charger built into the UPS. At the same time, through the UPS, electricity is supplied to consumers - a boiler, circulation pumps, etc. When the battery is fully charged, the charger automatically turns off, and the system is powered directly from the mains, through the UPS in the so-called. regular mode.
In the event of a power outage, the uninterruptible power supply will provide electricity from the battery (by converting it from DC to AC 220 V, 50 Hz) to the boiler and other connected equipment. The power supply will be carried out until the power supply to the house is restored, or until the batteries are discharged.
Sergey Larin-Chizh
Unlike a gasoline or diesel generator, UPSs can be installed anywhere, require virtually no maintenance other than battery replacement every few years, instantly restore power, and are silent in operation.
If, in addition to the boiler, it is necessary to power the pump of a local treatment plant, a water supply pump, etc., the UPS capacity is calculated based on the total electricity consumption of all consumers.
Also, when choosing an uninterruptible power supply for a boiler, you need to decide on a number of key requirements that apply to this equipment. According to the principle of operation, all UPSs are divided into three large groups.
- Off-line (off-line) UPS.
- Line-interactive devices.
- On-line (on-line) models of continuous action.
Sergey Larin-Chizh
To make an informed choice, you need to understand the differences between these UPSs.
Off-line uninterruptibles do not have a built-in stabilizer, and in the settings of the device the range of permissible mains voltage is fixed, for example, from 180 to 250 V. If the voltage drops or surges outside the input voltage range (and this often happens in suburban settlements), the device will regard this as a signal to switch power battery boiler. When the voltage level returns to the set ratings, the uninterruptible power supply will switch back to power from the main network. Those. at any jumps, unnecessarily frequent switching of the UPS: mains / batteries will occur.
In addition to the lack of protection of the connected equipment from voltage surges, the operation of an uninterruptible power supply in this mode will lead to a frequent charge / discharge cycle of the batteries, which will reduce their service life. In addition, when choosing a UPS of this type, you will additionally have to purchase a stabilizing device to protect the equipment.
Sergey Larin-Chizh
Unlike off-line, line-interactive devices, although they have limit values for permissible voltage, are additionally equipped with a voltage stabilizer that protects equipment from power surges. In addition to simply supplying voltage, this type of UPS allows you to adjust it within certain limits (about 20%), but usually this adjustment is stepped.
On-line uninterruptibles, or continuous UPS, are, at first glance, the most optimal equipment suitable for use in conjunction with a heating boiler, demanding on the quality of the voltage and its frequency. UPS of this type, due to its design features, "pull" the voltage to the quality we need, supplying the consumer with 220 V 50 Hz.
In such an uninterruptible power supply, an inverter is installed, which operates according to the double conversion scheme of the incoming current. Those. first, the alternating current is converted into a direct current, then it is converted again into an alternating current of stable quality necessary for the operation of the equipment. With all the advantages of online topology, there is one significant disadvantage that you should definitely pay attention to.
Due to the fact that the system works on the principle of double conversion, the connected batteries are used all the time. This significantly reduces the battery life compared to the line-interactive topology, and the batteries, in turn, are quite an expensive pleasure, at low powers, blocking the cost of the UPS itself.
Sergey Larin-Chizh
For the full operation of the uninterruptible power supply system, for a boiler room, a linear-interactive device will be more than enough, since in terms of the sum of consumer characteristics, this seems to be the best choice.
Important point: usually, for a UPS of initial power with external batteries, the supply voltage is 12 V or 24 V and then ascending - 36, 48 V, depending on the power, i.e. at 24 V, at least 2 batteries are required, which is not always economically feasible. Therefore, choosing a high-quality uninterruptible power supply, we look in its technical characteristics to see if it can work at the required minimum, i.e. from the 1st 12 V battery.
The weight of the equipment can also serve as an indirect indicator of its declared characteristics, for example, a pure sine wave is achieved by equalizing the signal with a powerful transformer. That is, due to the design features of a 2.5 kW UPS, it cannot weigh, for example, 10 kg. The weight of a system of similar power without batteries will be at least 30 kg.
We also pay attention to the transition speed of the battery / mains switching modes (the switching time should not exceed 6 m / s - 10 m / s), the maximum number of batteries that can be connected to the UPS. The last parameter is important if in the future it is planned to expand the capabilities of the system and, by increasing the capacity of the batteries, connect additional consumers to the backup power system or increase the battery life.
Choosing a battery for an uninterruptible power supply
The cost of batteries can be over 50% of the price of the entire UPS system. Therefore, their choice must be treated as responsibly as the choice of an uninterruptible power supply. At the same time, special requirements are imposed on batteries for building a backup power system.
Igor Gorokhov Head of the assembly group, TC Volt
Conventional starter batteries, which require periodic maintenance and emit sulfuric acid fumes during operation, are not intended for use in enclosed spaces in close proximity to people. Moreover, starter batteries are not designed for autonomous power supply and will instantly fail after 2-3 discharges.
The question arises, what to choose? We remember the second rule: gel batteries GEL (Gelled Electrolite) or batteries built on AGM (Absorptive Glass Mat) technology are best suited for use with a UPS. Despite the abbreviation obscure at first glance, both types of batteries are lead-acid, but differ from each other in the type of technology used.
In AGM batteries, between the lead plates, there are fiberglass mats - separators tightly compressed on both sides (they act like a sponge, preventing the acid from spreading), soaked in electrolyte.
In GEL batteries, the electrolyte is also located between the plates, but due to the addition of silicon dioxide, it is brought to a jelly-like mass - gel.
From here - electrolyte in these maintenance-free batteries does not spill. During the chemical reaction of gases, water will decompose into hydrogen and oxygen, but, during recombination, the ions of these chemical elements do not evaporate, but remain in the closed sealed space of the battery, "returning" back to the electrolyte, which retains its properties for 5-10 years .
This increases the service life of the backup power supply system of the boiler room, and both types of batteries can be used indoors, equipped with only a natural ventilation system.
Among the advantages of these types of batteries are: the ability to operate in a wide temperature range from -30 to + 50-60 ° C. Also, they can be installed in any position, except for the “upside down” not recommended by the manufacturer.
Igor Gorokhov
AGM technology is newer than GEL. It should be noted that the gel battery it is very sensitive to overcharging and reaches its nominal capacity only after 15-20 discharge / charge cycles, but, unlike AGM, it withstands a greater number of these cycles, and also withstands discharge during undercharging better. For example, if there was a repeated power outage, and the capacity is completely restored after a deep discharge.
The asset of AGM batteries (with the same capacity) is a lower price than gel ones, a higher current output power (which is important when starting powerful equipment, such as a pump), and a high charging speed. But at the same time, batteries of this type do not “tolerate” undercharging and work less with deep discharge. In the event of an undercharged battery being discharged (for example, the light was turned off again, and the boiler is powered by the UPS again), the battery capacity is irreversibly reduced.
Conclusions: when building an individual uninterruptible power supply system for a cottage heating system, it is necessary to take into account many nuances, ranging from the choice of equipment, calculating the power of the UPS and ending with the installation of equipment. All this requires professional knowledge, which can be acquired by following the advice of our experts and studying the advising topics on the portal.
After reading the article "What to do if there is no electricity on the site?" you will learn, . In the topic of the forum is collected.
In order to prevent any unforeseen interruptions in the operation of the gas boiler, care must be taken about the quality of the uninterruptible power supply(UPS) for him.
The best manufacturers of uninterruptible devices for a gas boiler
In the Russian market, the UPSs of the following best are most widely represented and enjoy the greatest popularity import and domestic manufacturers:
- Ippon;
- Source;
- inelt;
- Powerman;
- Ecovolt;
- Schneider Electric;
- Bastion.
Uninterruptible Power Supply Options
It is necessary to select a device for yourself, taking into account the given parameters, among which:
- working hours;
- battery charging time;
- output power;
- overload and interference protection;
- information display;
- price.
The choice of a specific model depends on the individual needs for power and other above-mentioned indicators that are significant for each household.
So, long working time will be significant in case of power outages for a period already from 5-10 minutes. Most devices operate in full load mode for this time, and in half load mode, some models work up to half an hour.
The battery charging time determines how quickly and better the device will be back in working order and how much electricity it will consume. It may also be significant availability of replaceable batteries.
Attention! Protection against overloads, interference, short circuits is important for the safety of the device and compliance with fire safety measures.
Displaying information on the screen, the presence of light indicators and sound notification is not paramount, but useful feature, which allows you to determine the need for charging, replacing the battery, etc.
UPS rating for gas boilers: which company is better
Various models of these firms have their own advantages and disadvantages, disclosed in the rating below (in ascending order), created to determine the best uninterruptible power supply device for a gas boiler in each case.
Ippon Smart Power Pro 1000
Interactive single-phase uninterruptible power supply with an output power of 1,000 VA has protective mechanisms against overloads, high-voltage impulses and interference filtering, automatic fuse.
Battery is replaceable, rechargeable within 4 hours.
The device is functionally capable of a cold start, equipped with light indicators and an audible alarm. Maximum absorbed pulse energy — up to 320 J, input voltage - from 165 to 275 V.
Some users complain about problems with the battery charge module of the device. After 1.5-3 years of work the device starts to charge worse. This problem is easily solved by disassembling the case with a Phillips screwdriver and moving the capacitor and transistor parts towards the side.
Price for Yandex. Market - from 7390 rubles.
Ippon Back Comfo Pro 600
single phase interactive Ippon Back Comfo Pro 600 designed for half an hour of operation in half-load mode.
Switches to battery within 6 ms, has an output power 600VA with maximum absorbed pulse energy up to 320 J.
Equipped with LED indicators, sound alarm, charging within 8 hours It has replaceable batteries.
Protected against overloads, high-voltage impulses, short circuits, has an automatic fuse.
Price for Yandex. Market - from 3974 rubles.
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PID source 1
Single-phase uninterruptible power supply of domestic production The source of IDP 1 is available in various configurations. Double converter device: IDP-1/1-1-220 is designed for 8.5 minutes in full load mode Efficiency averaging 85% and output power in 1 thousand VA. In semi-loaded mode, it can work without interruption up to 24 minutes.
Information is displayed on the LCD screen, there is a sound alarm, manual and automatic by-pass, the battery is charged for 6 hours. The device has overload and short circuit protection.
Nice but very expensive device for an efficiency of 85%).
Price for Yandex. Market - from 22 900 rubles.
Photo 1. Uninterruptible power supply IDP source 1, equipped with a liquid crystal screen and an audible alarm.
Inelt Intelligent 500lt2
Single-phase uninterruptible power supply Inelt Intelligent 500lt2 has a rating of 4 out of 5 on Yandex. Switches to battery for 4 ms. Has an output power at 500VA. Information on the device is displayed using LED indicators, there is an audible alarm and the possibility of a cold start. Protected against overloads and interference.
Battery is charging in 12 hours, there are options for replacing batteries or connecting additional ones. Input voltage fluctuates from 165 to 270 V. Oversized, weight - 6.5 kg.
Not very functional, but at the same time a reliable device.
Price for Yandex. Market - from 9974 rubles.
Powerman Online 1000 Plus
Uninterruptible Double Converter Powerman Online 1000 Plus is 83% efficient, output power in 1 thousand VA, single-phase input and output voltage, output power factor at 0.98.
The device has a slot for additional features, an LCD screen, an audible alarm, automatic by-pass, the possibility of replacing and connecting an additional battery.
Photo 2. Powerman Online 1000 Plus single-phase uninterruptible power supply with protection against short circuits and overloads, sound alarm.
The device is protected from overloads, interference, high-voltage impulses, short circuits. Weight - 5.6 kg.
Important! Many users pay attention to the device's uninformative instructions, as a result of which difficult to set up and use of equipment.
Price for Yandex. Market - from 11,048 rubles.
Ecovolt Eco 612e 800VA
Uninterruptible Ecovolt Eco 612e 800VA has a single-phase voltage input and output, output power, as the name suggests, 800 VA, efficiency over 95%.
Switchover time to battery is approx. 5 ms. Device input frequency — 50 Hz, output - the same.
The device is made in Russia. Dimensions:
- width 415 mm;
- height 205 mm;
- length 348 mm;
- Weight 13 kg.
Price for Yandex. Market - from 11 300 rubles.
Schneider Electric Back UPS es
Russian version of the uninterruptible power supply Schneider Electric Back-UPS ES 700VA 230V has 8 connectors to enter, 4 of which used to connect the battery. The voltage at the input and output is single-phase. Output power - 700VA. Can work in full load mode up to 4 minutes, in semi-loaded mode - up to 10 min.
Photo 3. Uninterruptible power supply Schneider Electric Back UPS es, equipped with protection against power surges in the network.
Protected from interference and power surges. It has a clear and easy-to-use interface, works quite quietly, is equipped with LED and sound notifications.
Reference! Users complain about problems with local services.
Price for Yandex. Market - from 3590 rubles.
Inelt Monolith k 1000 lt
Single-phase uninterruptible power supply Inelt Monolith k 1000 lt has an output power at 1 thousand VA. By type, this is a device with a double converter.
Input voltage fluctuates within values from 120 to 295 V. There is a slot for connecting additional features, a liquid crystal display screen, and a sound notification.
Inelt Monolith k 1000 lt is immune to interference, short circuits, overloads. The UPS does not have a built-in battery. Device dimensions:
- width 156 mm;
- height 220 mm;
- length 400 mm;
- weight 6.5 kg.
Quite expensive for its characteristics, but still a very high quality device.
Price for Yandex. Market - from 18 512 rubles.
Bastion Skat UPS 1000
Uninterrupted power supply unit Bastion Skat UPS 1000 has an output power of 1 thousand VA, switching time to battery in 6 ms, 2 rechargeable batteries located in the case. There is a voltage stabilizer in the range from 160 to 290V. Equipped with sound and LED indications, graphic display.
A modern gas boiler contains mains-powered components. Therefore, even a short interruption in the power supply will cause it to turn off, which can lead to a violation of the thermal regime in the room, and in the event of a long-term power failure, to defrosting of the entire heating system. In order to avoid such rather unpleasant situations, residents of private houses and country cottages are advised to take care of the autonomy of their heating system in advance and purchase an uninterruptible power supply for the boiler.
What is a UPS for a boiler, why is it needed?
UPS for a boiler is a device that, due to batteries (hereinafter referred to as AB), provides power to the heater in case of problems with the main source of electricity. The transition to autonomous mode (that is, to AB) is carried out automatically both when the voltage in the mains is completely turned off, and when its value is critically reduced.
Small to medium power UPS (250-3000 VA) are suitable for domestic boiler applications, they are easy to connect and operate, have a long service life and do not require frequent maintenance.
Note! The total cost of owning a UPS, which includes the price of a new product and further maintenance costs, is less than the cost of repairing a failed heating system.
What types of UPS are there? What type of UPS is needed for the boiler?
There are three types of uninterruptible power supplies: off-line UPS, line-interactive UPS and on-line UPS (double conversion). Between themselves, they differ in scheme, principle of operation and basic characteristics.
Off-line UPSs have a number of serious drawbacks: a long delay when switching to battery, no input voltage correction, and a distorted (non-sinusoidal) output voltage waveform in offline mode. The scope of these devices is limited to a load that is undemanding to the quality of the input voltage and resistant to short-term power failures. A modern heating system boiler cannot be attributed to such equipment, so an off-line UPS for a boiler is not the best option.
Line-interactive UPSs are more advanced and can be used with gas boilers. However, they do not guarantee them the maximum level of protection, especially in the case of a boiler equipped with highly sensitive automation.
On-line UPS are the most efficient solution for uninterrupted power supply of any equipment, including heating equipment. The main advantages of these devices are: instant switching of the load to the battery, high accuracy and ideal shape (pure sine) of the output voltage. Only on-line UPSs provide truly uninterrupted power supply to the boiler, completely independent of the state of the main power source. In addition, devices of this class neutralize various network influences that adversely affect the operation of energy-dependent elements of the heating system. .
Do I need a voltage stabilizer for the boiler if there is a UPS?
Connecting a stabilizer in front of the UPS for the boiler will expand the mains voltage range in which the device supplies the load without switching to battery. This will conserve battery life as well as increase potential battery life.
The connection of a stabilizer after the UPS for the boiler will be needed if the device cannot meet the requirements of the gas boiler for the form and accuracy of the supply voltage (this problem often occurs when using an off-line UPS or a line-interactive type UPS). The stabilizer in this case will improve these parameters to a level acceptable for heating equipment.
Note! Not every stabilizer is suitable for this task!
On-line UPS has a wide input voltage range, and the quality of the electricity received from it meets absolutely all the requirements of a gas boiler. Therefore, when using this type of UPS, there is no need to use additional stabilizers.
What parameters are of paramount importance when choosing a UPS for a boiler?
A competent choice of UPS is a guarantee of reliable and high-quality operation of both the device itself and the equipment connected to it. When choosing a UPS for a boiler, you need to pay attention to the following device parameters:
- phase - must correspond to the phase of the input network and load (most household boilers are designed to operate from a single-phase network with a voltage of 220/230 V);
- rated output power - must be no less than the power consumption of the load, otherwise the UPS will not cope with its tasks and the money spent on it will be wasted. It is recommended to choose a UPS for a boiler with a rating that exceeds the actual power of the planned load by 20-30%, this margin will be able to compensate for possible overloads;
- offline operation time - should be sufficient to ensure the functioning of the boiler for the period necessary to eliminate the malfunction of the input network or start a backup source of electricity (generator). The actual duration of the UPS operation in the absence of electricity depends, firstly, on the number and capacity of the batteries, and, secondly, on the power consumption of the equipment connected to the device. It should be understood that the same UPS model under different loads has different autonomy times;
- case design - should provide the most convenient location of the UPS. It is recommended to think over the mounting method in advance and make sure that the dimensions of the product correspond to the place of intended use. It is important to ensure that there is a gap of at least 20 cm between the ventilation holes located on the UPS case and the nearest surface.
Many people, before purchasing a UPS, think about whether there is a difference between choosing a UPS for a gas boiler and for a solid fuel boiler. It should be understood that there is no difference! You need to look not at the type of boiler, but at its characteristics, the main of which is the power consumption.
What should be paid special attention to when choosing a UPS for a boiler?
If the heating system includes circulation pumps with high starting currents, then the UPS for this system must be selected based on the value of its maximum (starting) power, which is at least 3 times higher than the rated one.
A computer UPS is not suitable for working with the boiler. It just won't provide the battery life you need. In addition, a device designed to connect a personal computer is most often characterized by an output signal in the form of a modified (approximated) sinusoid, and for the correct operation of the boiler, it is a pure (ideal) sinusoid that is needed.
Batteries can be located both in the UPS case and outside it, in external structures: modules, racks, cabinets. Instruments with internal batteries have a limited battery life and are suitable for operation either in a power supply system equipped with a generator or in the absence of long (over 4 hours) interruptions in power supply.
Some UPSs have the option of a "cold" start - in the absence of input voltage, the device turns on due to the energy of the battery. This option will allow you to start the heating system even when the mains power is turned off.
UPS "Shtil" - the best UPS for a gas boiler.
The Shtil group of companies offers a large line of on-line UPSs, which are the best choice for everyone who is looking for a reliable and modern tool that can provide uninterrupted power supply to the heating system.
If you need a solution for working with a household single-phase cat, then you should consider the Stihl UPS of the ST and SW series. These devices, due to their characteristics, guarantee long-term and trouble-free operation of load connections in any state of the external power supply.
ST models are available from 1 to 3 kVA and are designed for vertical (floor) installation on a flat horizontal surface. SW models are designed for hanging (wall) placement, their power is from 250 to 1000 VA.
These devices are presented both in versions equipped with internal batteries (SW-SL, ST-SL) and in versions designed to connect a wide range of external batteries (SW-L, ST-L).
All Shtil UPSs are produced exclusively in Russia and are an example of high-quality domestic equipment sold at an affordable price!
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