How to choose an uninterruptible power supply for a heating boiler. UPS for gas boilers
As described above, online UPS technology fully meets all the requirements of gas and other boilers (provided they have a through neutral (phase-dependent) - for expensive boilers).
If you have a boiler, for example, a solid fuel one, for which the switching time of electricity is not critical, for a few tens of milliseconds and there are only 1-2 circulation pumps, then a more budgetary version of an uninterruptible power supply is more suitable for you. You can read this in the review of the best UPS for the boiler. line-interactive.
Briefly about the through neutral - it is understood that on the plug and on the UPS output socket (where the boiler is connected), ALWAYS one leg of the plug and one "hole" of the UPS output socket is live, and the other is neutral (and you MUST connect the UPS correctly to your mains and connect symmetrically boiler). In most UPSs, you can simply ring with a regular tester (of course, in the off state), connect one end of the tester to one of the legs of the plug and plug the other end into the UPS output socket - only neutral rings (that's why it is called "through". You can find many articles on the Internet dedicated to this topic (search for: UPS phasing, UPS neutral through, etc.).
In the absence of a through neutral, the boilers (phase-dependent ones go into error stop working).
The most popular and in 95% of cases, sufficient power for an online uninterruptible technology is 1000VA / 800W, it is more than enough for a boiler (which power consumption is on average 120 - 150 W) and several circulation pumps (150 - 400 W), must not be confused with borehole pumps (they have large starting currents and at the time of launch they consume 3-6 times more than the power rating indicated on it). For a 1000VA UPS, it is better not to connect well pumps, refrigerators, and other equipment that includes electric motors (they require more powerful UPSs and much more expensive ones).
As a result, the most popular will be the comparison of online UPS technology with a capacity of 1000VA / 800W.
Boiler UPS - Popular in the market:
- INELT Monolith K1000 LT - from 18700 rubles
- HELIOR Sigma 1 KSL - from 18600 rubles
- STARK country 1000 online - from 18250 rubles
- P-Com Pro 1H - from 17700 rubles
- Voltguard HT 1101L - from 18500 rubles
- Teplocom 1000 - from 24500 rubles
| INELT Monolith K1000LT | HELIOR Sigma 1 KSL | P-Com Pro 1H | STARK country 1000 online | Voltguard HT 1101L | Teplocom 1000 | |
|---|---|---|---|---|---|---|
| Power | 1000 / 700 | 1000 / 800 | 1000 / 800 | 1000 / 800 | 1000 / 700 | 1000 / 700 |
| Input, range | 120 - 295 | 138 - 300 | 130 - 295 | 130 - 300 | 160 - 300 | 160 - 300 |
| Charge, capacity | 5A/ 17 - 200 | 6A/ 17 - 200 | 6.5A or 13A/ 17 - 400 | 8-12A/ 17 - 300 | 6A/ 40 - 120 | 6A/ 40 - 120 |
| batteries | 3 | 2 | 2 | 3 | 2 | 2 |
| Switching | 0 | 0 | 0 | 0 | 0 | 0 |
| Dimensions | 400*165*220 / 6,5 | 395*110*260 / 6,5 | 350*144*229 / 6 | 397*145*200 / 6,5 | 397*145*220 / 6,5 | 395*110*260 / 6,5 |
| through neutral | No | No | There is | There is | No | There is |
| Price | 18700 | 18700 | 17700 | 18250 | 18500 | 24500 |
1. UPS INELT Monolith K1000 LT
| Feature Description | Meaning |
|---|---|
| Price | from 18700 |
| 1000 / 700 | |
| 120 - 295 | |
| 5A/ 17 - 200 | |
| 3 | |
| 0 | |
| 400*165*220 / 6,5 | |
| No |
A good UPS with a capacity of 1000VA / 700W (competitors have 800W).
The main advantages of the INELT Monolith K1000 LT UPS:
- there are no clear advantages.
Informativeness:
availability of video (review)
The main disadvantages of the INELT Monolith K1000 LT UPS:
- this is the need to connect at least 3 external batteries (relative to competitors who have only 2 pcs) - this leads to an increase in the cost of the entire solution - a UPS for the boiler;
- the presence of a through neutral (phase dependence) - this information is not indicated on the websites of UPS sellers.
Here are the reviews:
Reviews from Yandex Market:
Advantages:
Flaws:
Does not operate on battery power in conjunction with a phase-dependent boiler.
A comment:
I bought it to maintain the autonomous operation of the Buderus gas phase-dependent boiler. Together with the UPS, I purchased three 55 amp Delta batteries (this model needs at least three batteries for autonomous operation). Collected, connected. From the network works. Does not work on batteries. Turning the plug over, connecting the stabilizer after the UPS did not help, when switching to battery operation, it ignites the boiler, which goes out after 5 seconds and gives a burner error. Before purchasing this model, consult, the UPS is quite expensive, together with the batteries it cost me more than 40,000 rubles.
Positive feedback
Advantages:
Ability to connect almost any battery: long battery life
Double conversion: no stabilizer needed, wide input voltage range Pure sine output and zero switching time: even the most fastidious devices "can't tell the difference"
Flaws:
Noisy fan, It always runs at maximum speed, so using this UPS in any residential or work environment is a dubious pleasure.
I got a version with an LCD screen, I'm not happy that the backlight turns off very quickly (it would not hurt to keep it always on) and the fact that by default the screen shows only the output voltage, and if you choose something else, but automatically returns to him. I would like to have all the important parameters on the screen by default: input, output, battery charge and load.
Softinka included is not bad, but IMHO, only if the uninterruptible power supply is used only to power computers. In particular, I would like to see more advanced notification settings.
A comment:
So far, everything is ok, the Ferroli boiler works for me from it without any problems. It's already been 3 years, the UPS is working and does not attract attention, so I really like it. It stands on the floor, the room is quite dusty, but due to the high speed of the fan, dust apparently does not linger inside, because it is quite clean inside.
Summary:
A good UPS, somewhat lagging behind its competitors in terms of the number of external batteries (which makes it more expensive), minus the lack of a through neutral - limits its use for boilers.
In the shop.
Addition:
you should not trust the reviews completely - if the fan sucks air with dust into the device (UPS, computer, etc.), then the dust usually remains inside the device, and is not blown out completely. It is necessary to clean (open and then blow through - vacuum such devices at least once a year.
2. UPS HELIOR Sigma 1 KSL
| Feature Description | Meaning |
|---|---|
| Price | from 18700 |
| Equipment load power VA / W, no more | 1000 / 800 |
| Input voltage range at which the UPS does not switch to battery operation, V | 138 - 300 |
| Charge current, A (characteristic affecting the recovery time of the battery capacity (charge) / maximum capacity of connected batteries | 6A/ 17 - 200 |
| The minimum number of external batteries, 12V (a parameter affecting the cost of a solution with batteries, the more batteries, the more expensive the kit and maintenance | 2 |
| Switchover time to batteries, ms | 0 |
| Dimensions without packaging (length*width*height), mm / net weight, kg | 395*110*260 / 6,5 |
| Optional, through neutral (phase dependent) | No |
Medium UPS 1000VA / 800W.
The main advantages of the HELIOR Sigma 1 KSL UPS:
- The manufacturer claims a wide input voltage range.
Informativeness:
Availability of video (review).
The main disadvantages of the HELIOR Sigma 1 KSL UPS:
- there is no through neutral (phase-dependent) - this information does not appear anywhere.
- quite bad reviews on the Yandex market.
We try to give objective reviews (and not dubious ones):
Reviews from Yandex Market:
Advantages:
Didn't like it (read below)
Flaws:
After a month of work with a gas boiler, it caught fire and the entire boiler room was filled with smoke. This is Chinese tin!!!
A comment:
The inverter was bought from the official on the street. Vavilov. It was purchased to work only in conjunction with a gas boiler (and only with it!). We also bought new 100 amph batteries. The load on the inverter with the gas burner turned on was no more than 190 watts, and more and more nothing is included in this Chinese. The house almost burned down, it’s good that the boiler room is sheathed with iron according to GOST. Recently they called from the repair ... From the first minutes they began to reproach me that I connected a refrigerator and other things to the inverter .... To all my answers that this was not the case, they told me the opposite. People! Please be careful with this product. Then you will not prove that it is the inverter that is to blame and not you. They will tell you that it was you who connected the whole house to this product, and even in addition to a neighbor ... I EXTREMELY do not recommend buying.
Advantages:
The ratio of the price of the device and its passport characteristics. Analogues are much more expensive.
Real on-line, with unstable voltage, it is able to normally keep even very sensitive electronics working. High-quality assembly and soldering of elements.
Flaws:
Unreliable cooling system. The fan speed is controlled by the load of the instrument and not by the actual ambient temperature. When it rises in the room, the device simply burns out. The fan itself during operation has extraneous noise.
A comment:
We use this device in the networks of the Internet provider. Loss statistics are lower than those of the promoted APCs, but there is an inadequacy in behavior.
The main advantage is that it is very stable in working with even very poor networks, where operating currents are from 150-180 V.
It does not work well with generators (the "generator" mode can cause the device to hang and stop).
Poorly tolerates an increase in room temperature - neither ventilation nor protection works, the device may burn out
In general, the model is raw, but powerful enough. Due to the lack of new models, apparently, we will have to work with what we have.
Summary:
The average uninterruptible power supply, minus the lack of a through neutral - limits it in its application to boilers. Reviews make you think. Plus - good voltage specifications.
ASSESSMENT price-quality - 6 (on a 10 point scale)
3. UPS P-Com Pro 1H
| Feature Description | Meaning |
|---|---|
| Price | from 17700 |
| Equipment load power VA / W, no more | 1000 / 800 |
| Input voltage range at which the UPS does not switch to battery operation, V | 130 - 295 |
| Charge current, A (characteristic affecting the recovery time of the battery capacity (charge) / maximum capacity of connected batteries | 6.5A or 13A/ 17 - 400 |
| The minimum number of external batteries, 12V (a parameter affecting the cost of a solution with batteries, the more batteries, the more expensive the kit and maintenance | 2 |
| Switchover time to batteries, ms | 0 |
| Dimensions without packaging (length*width*height), mm / net weight, kg | 350*144*229 / 6 |
| Optional, through neutral (phase dependent) | There is |
Good 1000VA / 800W UPS.
The main advantages of the P-Com Pro 1H UPS:
- the presence of a through neutral;
- a complete set with a charge current of 13A is possible (which allows the use of batteries with a total capacity of more than 300Ah);
- suitable for all boilers and other demanding equipment.
Informativeness:
Availability of video (quite detailed, technical).
There is a technical review, you can find it on request in search engines: "Observations on the UPS Pro 1H"
The main disadvantages of the P-Com Pro 1H UPS:
- the reviews indicate the absence of galvanic isolation;
In fact, the absence of an isolation transformer in this model is not a minus, like the rest of the contestants. Since there is no neutral concept on the second winding, which will cause problems with the operation of phase-dependent boilers. People who want an honest galvanic isolation (without grounding it) in an uninterruptible power supply to work in their boiler room do not quite understand what they are writing about.
Fairly good reviews on the Yandex market (there is feedback from sellers on reviews, see discussions):
Reviews from Yandex Market:
Advantages:
Quiet, smart, powerful, lightweight, inexpensive.
Flaws:
There is no galvanic isolation. Disgustingly squeaks when there is a power failure in the network. Forced cooling is never disabled, even in idle mode.
A comment:
A good choice. Buderus g234 still managed to make friends with him without additional dances with tambourines (without an isolation transformer). It is necessary to make grounding from the boiler to the bus in the shield with an unbreakable wire and everything will work
Advantages:
Power, build quality, price
Flaws:
Not found yet
A comment:
I took it home, as there are constant voltage drops and the lights often turn off. There are no complaints about P-Com Pro 1H yet. Everything works like clockwork - the power is 100% consistent with the declared one, a simple convenient menu - even a girl can figure it out, quite quiet, looks great, and this despite the fact that its price is quite democratic. Recommend to everyone to buy
Summary:
A good UPS for a boiler, the presence of a through neutral, allows you to use it for almost any boiler. The possibility of completing with a more powerful charging current makes it applicable for large capacities (over 300 Ah). Other characteristics are not inferior to competitors.
You can in the online store.
Minus:
Noise - a characteristic inherent in all UPSs of online technology, the fan cools the transistors that are always working, and in this technology they work constantly.
ASSESSMENT price-quality - 9 (on a 10 point scale)
4. UPS STARK country 1000 online
| Feature Description | Meaning |
|---|---|
| Price | from 18250 |
| Equipment load power VA / W, no more | 1000 / 800 |
| Input voltage range at which the UPS does not switch to battery operation, V | 130 - 300 |
| Charge current, A (characteristic affecting the recovery time of the battery capacity (charge) / maximum capacity of connected batteries | 8-12A/ 17 - 300 |
| The minimum number of external batteries, 12V (a parameter affecting the cost of a solution with batteries, the more batteries, the more expensive the kit and maintenance | 3 |
| Switchover time to batteries, ms | 0 |
| Dimensions without packaging (length*width*height), mm / net weight, kg | 397*145*200 / 6,5 |
| Optional, through neutral (phase dependent) | There is |
A good UPS with a capacity of 1000 VA / 800V.
Main advantages of UPS STARK country 1000 online:
- the presence of a through neutral (phase-dependent);
- the possibility of completing with a charging current of up to 12A (allows the connection of large-capacity batteries).
Informativeness:
Availability of video (review).
The main disadvantages of the UPS STARK country 1000 online:
- the need to connect at least 3 external batteries (relative to competitors who have only 2 pcs) - this leads to an increase in the cost of the entire solution - a UPS for the boiler.
Most modern heating boilers offered on the Russian market are volatile. The compact sizes of a copper, economy in operation attract more and more consumers. When installing such a boiler, you should immediately think about the uninterrupted power supply of the boiler. Many people miss this point. But none of us is immune from emergency situations in the power grid. Electricity can be turned off for a long time, and hence the power to the boiler. Which in winter can lead to complete defrosting of the heating circuit of the boiler. The cost of restoring the entire system, the boiler is huge. We recommend that you think in advance about the uninterrupted power supply of the gas boiler by installing special UPS for boilers
.
There are two types of UPS for the boiler:
Uninterrupted power supply for backup type boilers
If there is a power supply in a certain voltage range (the range may vary depending on the manufacturer), it works directly from the network. In this mode, the shape of the output signal is fully consistent with the input. When the voltage goes beyond the specified range or the power goes out, it switches to battery operation mode, continuing to provide power to the boiler. Continuing to monitor the appearance of electricity. In this mode, the boiler is supplied with a voltage of 220 volts with a pure sinusoidal signal (the signal shape may be different, depending on the manufacturer and characteristics). There is a process of converting the direct voltage of 12 volts from the battery into an alternating voltage of 220 volts necessary for the boiler. If the battery voltage reaches the minimum critical discharge level, the UPS for the boiler is turned off. This saves battery life. When the mains appears, it switches to direct mode, simultaneously including charging the battery to 100% of the state. Therefore, this mode is called reserve, in the presence of the mains it is in reserve (reserve). And the work is included only in the absence or exit of the level beyond the operating limits.
Interactive UPS
They are also called online, always on. In general terms, such an uninterruptible power supply can also be called a stabilizer. Since even in the presence of a network, an alternating signal is converted into a constant voltage. The second stage is the reverse conversion of the DC voltage to AC 220 volts with a pure sine at the output, ideal for the boiler. In the event of a power outage, it runs on battery power. The input operating range of such uninterruptible power supplies is much wider. Able to smooth out surges, voltage dips. Removing various kinds of network interference, by building its own output sinusoidal signal of 220 volts, which is optimal for any boiler. They cost a little more, but the number of functions and protections performed justify this cost.
Most private houses are equipped with a modern heating system, including volatile boilers, elements for system circulation. But the state of our electrical networks, weather conditions cannot provide a stable power supply to the boiler. Take care in advance by installing an uninterruptible power supply to the boiler along with the circulation system. Installing an uninterrupted power supply system will save you from problems with the heating system in winter. When the boiler stops, it can lead to financial costs to restore the entire system. It remains to choose the right UPS for the boiler with a battery. Consider a few key points for the right choice.
Choosing the right UPS
The first step is to understand what a UPS is. The full name is an uninterruptible power supply. Some confuse this name with an inverter. It is not right. An inverter, as the name suggests, inverts voltages. In our case, it converts the DC voltage from the battery (battery) into AC voltage 220V, frequency 50Hz. Depending on the manufacturer, the output waveform can be pure sine (sine wave) or approximate (approximated sine). And this is its entire function. And the uninterruptible power supply includes an inverter function, a network and battery charge control function, a switchover function to the battery when the mains voltage fails, and a return when the network appears. Therefore, an uninterruptible power supply is called, which provides uninterrupted power, in a fully automatic mode.
Main characteristics for the right choice
- We determine the voltage of the home network where the boiler is planned to be installed. It is enough to measure the voltage with a multimeter in the morning and in the evening. Why is this an important feature? Because UPS for offline type boilers operate in a certain range, allowed by Russian GOST. The limits of this range are 190-245 volts. Out of range, many self-contained power supplies automatically switch to battery mode, even when mains power is available. The battery capacity is designed for a short period of time. If your mains voltage is out of range, then you need to install a voltage stabilizer in front of the power source for the boiler. The required power is small. Approximately 500 - 1000 VA is enough. The second option for solving the voltage problem is to install a UPS for an online type boiler. Such autonomous power supplies have a wider range of operation from the input mains. 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 filter for frequency noise. Naturally, such autonomous power supplies cost more. The decision is made by the consumer himself according to his capabilities. The cost of such an uninterruptible power supply can even exceed the cost of an offline type UPS kit plus an inexpensive voltage stabilizer. Buying a set of UPS 300 plus a battery 100A / h in our store, you get a voltage stabilizer as a gift, without any additional conditions.
- The next main property is the shape of the output signal. There are many different types of uninterruptible power supplies. For example, an uninterruptible power supply for a computer has a rectangular output signal. This form is categorically not suitable for pumps in a heating system. The pumps start to work intermittently, buzzing. The service life is immediately reduced significantly. Reliable operation of the entire heating system, including pumps, is only possible with a pure sinusoidal output signal after a fail-safe unit. Do not listen to salespeople who will start offering an approximate sine (approximated). Although this waveform is almost like a real sine wave, the boiler and pump still work intermittently. Interruptions or false positives of the boiler control board occur. Only a pure sinusoidal signal at the output of the uninterruptible power supply will ensure uninterrupted operation of the boiler and your heating system as a whole.
- The last step is to determine the battery life for the boiler. Everything is much simpler here. The time depends on the power consumption 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 pitfall here. No need to immediately rush to buy a battery for an uninterruptible power supply of maximum capacity. First you need to study the characteristics of the uninterruptible power supply. The manufacturer in the characteristics table indicates the maximum allowable power of the battery, its type. If the table indicates the battery capacity of not more than 150A / h, then you can install any battery up to 150A / h. What happens if you still install more 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 full discharge cycle a couple of times a month. In simple terms, train the battery. Why? Car batteries are designed for daily charge and discharge. If the battery is idle for a long time, then it begins to break down. If there is no time for this, then we recommend special batteries for an uninterruptible power supply. Here the principle is reversed. It is enough for such batteries to carry out a training cycle two to three times a year. The service life of such batteries is very long, about 5-15 years, depending on the modification. Buying a complete set of UPS + batteries for the boiler, you get a 10% discount on any battery for an uninterruptible block.
A UPS for a gas boiler is not a cheap thing, so a reasonable question for an economical homeowner arises: - why do we need an uninterruptible power supply? The fact is that modern gas equipment is increasingly being designed as volatile and equipped with sophisticated electronics designed to make our lives easier. All kinds of control systems, ignition, software control and other functions require uninterrupted electrical power. In addition, of course, electronic components are sensitive to sudden voltage drops.
Emergencies leading to interruptions in the supply of electricity and power surges will most likely lead to the failure of your heat generating device. To be left without heating in, the prospect is unpleasant. Not only will households experience extreme discomfort, so even worse, all plumbing equipment - pipes, radiators, water supply systems - will become completely unusable as a result of negative temperatures.
Avoiding such a catastrophe is quite simple if a prudent owner thinks in advance which uninterruptible power supply (UPS) for a gas boiler will provide him with complete protection from unforeseen situations. Needless to say, that the uninterruptible power supply for a gas boiler will retain warranty service?
It should be borne in mind that during surges in the network, first of all, electronic elements fail, but the reason for “unstable electrical network” is always interpreted by the service center as not a warranty case.So, we believe that the question of the need to install a UPS, UPS (UPS) or, more simply, an uninterruptible power supply, is closed.
Note that UPS for a gas boiler is presented in a huge assortment and is divided into three main types. What knowledge we need to choose the best uninterruptible power supply we will analyze in our review.
At the end of the review, we will bring to your attention the most popular ones that are in demand on the domestic market. Let's look at the Internet pages, read some customer reviews about the experience of operating the UPS. And how to correctly connect the UPS with your own hands.
UPS for boiler
A standard uninterruptible power supply is offered for sale in three parts, including:
- Voltage stabilization unit;
- Battery pack.
- inverter
The purpose of the first module is the most difficult, it must stabilize the supply of electricity to the boiler, smoothing the voltage. The UPS stabilization module does not allow fluctuations in the network, and equalizes the voltage to the required 220 V. In addition to the fact that the stabilizing module protects the electronic components of the automation of boiler equipment, it also has a positive effect on the quality of battery charging.
For the second module, the task is no less important - to maintain operability in emergency situations and maintain its operation in the event of a complete power outage. The duration of autonomous power supply from an uninterruptible power supply depends proportionally on the quantity and quality of batteries, including their degree of charge.
The third device is an inverter for a heating boiler, designed to convert direct current into 12V from batteries, into alternating voltage 220V. The sinusoidal curve passing through the inverter has a minimum oscillation amplitude, which ensures the correct operation of the control boards of the boiler and auxiliary equipment in.
The price of an uninterruptible power supply for a gas boiler differs significantly based on its principle of interaction with the power grid. The second thing that UPS pricing has an impact on for a heating boiler is the way it is placed in the room.
Three fundamentally different ways of protection
① UPS offline- the name tells us that the device does not include a stabilizer in the design, that is, it is “out of line”. The voltage indicators at the output and at the input of the device does not change. The device is equipped with a simple relay switching and belongs to the lower price category, while the device is by no means useless.
Uninterrupted power supply is carried out in the following order: a drop in the mains voltage or its fluctuation in excess of the permissible norms leads to the fact that the uninterruptible power supply for a fraction of a second (no more than 15 ms) transfers the boiler to battery power. Upon the return of the mains voltage indicators to normal values, the boiler automatically resets and receives electricity from the network;
② Line-interactive uninterruptible power supply- The UPS is in the middle price category. Unlike offline UPS, a voltage stabilizer is included in the kit. They represent a middle ground between offline and online devices. The kit contains rechargeable batteries and a switch that, in case of power surges, switches to work from the UPS.
The automatic regulator is responsible for voltage stabilization. The consumer, more often pays attention to this particular device, due to its optimal characteristics and affordable price, the choice of the buyer falls on it, primarily as an uninterruptible power supply for a gas boiler. The disadvantages of the device can be attributed only - slow switching to an independent mode of power supply, with a sharp jump on the central line.
③ UPS online - progressive technical device, for those who appreciate quality and are scrupulous about their technical equipment. UPS online, compatible with generator sets, which greatly expands the degree of independence. Often, due to advanced functionality, such blocks are found under the name - Double Conversion UPS ON-Line.
Taking alternating current, the online UPS converts it by rectifying it into direct current and directs it to recharge the batteries. Further, from the batteries, the DC voltage is again reorganized into an alternating current with an equilateral sinusoid.
Double conversion of the electrical supply guarantees a stabilized voltage. This approach to providing a stable power supply is important in homes where there is independent power, such as from wind farms.
Separation by installation method
From the installation option, uninterruptible power supplies for are conditionally divided into two categories:
- Location on the wall- due to the convenient layout of oversized UPS directly on the wall, without taking up much space. Basically, these are devices with a low-capacity battery. Most wall-mounted UPS versions are connected to a remote battery installed in a separate location;
- Outdoor placement - bulky, with impressive size and weight of the UPS. A powerful uninterruptible power supply for a gas boiler, installed with the calculation of increased loads for a long time period of providing electricity in autonomous conditions for receiving power.
Choosing a UPS for a gas boiler
So, let's summarize the knowledge gained, the formed concepts of what a UPS is, will help us more correctly choose an uninterruptible power supply. We will need: a high-quality inverter, a stabilizer and a powerful battery. Two main parameters will help to make our choice unmistakable:
- First, we need to calculate the sum of the power consumption of all devices that fall into the sphere of special importance and are subject to indispensable protection from voltage fluctuations;
- Secondly, determine the period of time required for the autonomous operation of the equipment.
Add up the power
Calculating the total power is actually very simple. We consider all devices to be protected: a gas boiler, a circulation pump, an alarm system, we are sure that you yourself can continue the list of electrical appliances responsible for life support with a recommendation to connect to the network through a UPS.
After the devices are on our list, carefully add up the power of each device, which is written in the passport data or operating instructions. The final sum is our desired parameter. The young man in the video review tells in detail how it is easier to do this:
Having received the sum of the power from the consumption of all devices, in order to correctly select the gas boiler UPS, you will need to increase this value by 30 percent. This must be done, since many devices, such as a pump motor, sharply increase current consumption at the time of start-up.
Modern UPSs, of course, withstand short-term overload, however, experts advise to play it safe by at least 30%, and consider buying an uninterruptible power supply with increased voltage in reserve.
Set the required battery life
The amount of time interval for providing autonomous power from the UPS to your electrical appliances is directly dependent on the battery capacity. The battery manufacturer usually specifies the battery life in the accompanying instructions for the battery. Practice shows that the indicated indicator differs downward from the declared values, this is due to the coefficient of the depth of discharge and the efficiency of the inverter.
It will be useful to remember how often your electricity goes out, how long such outages most often occur. Based on these data, we determine the value of the maximum possible period of autonomy in hours. Required capacitybattery, calculated directly from your needs:
C \u003d (T x P) / (8.65 x N), where
- C - the desired value of the required capacity;
- T - the required period of autonomy, (how much time you need before the restoration of the central power supply) - in hours;
- P - the sum of the power of all connected equipment to the UPS - in watts;
- N is the number of batteries in the uninterruptible power supply planned for purchase;
- 8.65 is a constant coefficient.
Important UPS Information
To begin with, no manufacturer produces a special uninterruptible power supply for a gas boiler. The task of production is to provide uninterruptible power supplies for a wide range of equipment suitable for many models and solving problems for devices of various profiles and purposes. Each uninterruptible device has a number of distinctive characteristics. Let's take a look at the main points and give some tips to the homeowner to help determine the choice of a UPS for a gas boiler:
- The speed of transition to the autonomy mode must correspond to the value "0". In the case when you have a different standard in front of you - you are holding in your hands a linear-interactive uninterruptible power supply for a gas boiler that does not provide correct performance with high-precision electronics;
- Carefully check the output voltage from the inverter, we need a view with a sinusoidal shape. In the technical specifications, depending on the manufacturer, it is written as “sine” sometimes “pure sine”. Did you stumble upon “quasi-sine” or “approximated sine wave” in the records of the characteristics of the device ?, know that this uninterruptible power supply is great for protecting computers, printers, television receivers, but it is not intended as a protector of boiler equipment
- You need to check the charging current of the battery. Passport data must contain information in the form - "4, 6, 8, and 10 A". The absence of such information in the product documentation tells us that we have a car version of the battery and autonomous performance will not exceed more than 15 minutes.
Video for those who want to choose a UPS for a gas boiler:
In protecting a gas boiler, batteries produced using AGM or AGM GEL technology show themselves best. A frequent question is asked by the consumer about the possibility of connecting a car battery to a UPS for a gas boiler? As we have already noted, the use of starting car batteries is not suitable for long-term autonomy.
Car batteries are specifically designed for peak and short-term load to start the engine. Autonomous operation quickly reduces their charge and they fail. In addition, the electrolyte is subjected to an evaporation process, which is unacceptable in a residential area. It is for this reason that the battery for the UPS of gas boilers is produced using a different technology.
The best UPS for gas boilers
As promised, let's take a closer look at uninterruptible power supplies for heating boilers, which are best suited to our tasks:
INELT Monolith K 1000 LT
The well-known Monolith K 1000 LT gadget belongs to the on-line view. The UPS is equipped with a double conversion inverter. The Chinese manufacturer guarantees a long interval of autonomous power supply when equipped with a 150 Ah battery, in which case the operation of the boiler room will reach a 14-hour support level.
The Monolith K 1000 LT package does not include a battery, so it is convenient to select the capacity for your own parameters. The pluses include a wonderful equipment with a powerful charger. The indicated price in online stores for an uninterruptible power supply for a gas boiler starts from 18,000 rubles. at the beginning of 2018
STIHL VoltGuarg HT1101L
Tula craftsmen present Calm UPS for gas boilers. High frequency UPS VoltGuarg HT1101L is an intelligent device with double conversion method online and a pure sinusoidal characteristic of the electric current at the output to consumer devices.
Calm is designed to create a barrier against surges in the input mains power supply. They are guaranteed to create conditions for the uninterrupted operation of complex telecommunications and medical devices, and are the best suited for use for our purposes.
Equally, as with any model uninterruptible power supply,the period of autonomous operation of the Calm uninterruptible power supply depends on the capacity of external batteries. The product at the output produces a single-phase current with a voltage of 220 volts, the consumer can count on a maximum power of up to 1 kVA. The package does not include a battery, so the consumer selects an external battery based on the necessary prudence.
Each uninterruptible power supply is equipped with a multi-level protective system against short circuits in electrical networks and rapid discharge of the supply batteries. Specialized stores offer to buy a UPS for a gas boiler under the Shtil brand in a variety of configurations, so the price for assembling VoltGuarg HT1101L does not exceed 19,000 rubles. in 2017 prices.
Alexey Dmitrievich, Ulyanovsk
The question of ensuring autonomy arose. Of course, I wanted to buy the best uninterruptible power supply, but as usual, there was absolutely no desire to overpay. I had to re-read a bunch of forums, endlessly compare technical indicators, and most importantly prices. Once I came across the ABP-150T model "Shtil", which was recommended by one of the participants of the next forum. I liked the model, the more I struggled with the search and eventually settled on it.
I decided to write a review, because indeed the Stihl UPS turned out to be an ideal option with enough power for my units. For trouble-free operation, stocked up with two 40 Ah batteries. I connected everything myself according to the instructions, spending 30 minutes of my time. I have been using it for two years now, during this time the UPS for a gas boiler has never let me down. The electricity was not cut off often, but for some reason it was always in winter, so the UPS helped me out more than once in difficult times. Alexey Dmitrievich, Ulyanovsk
Bastion SKAT-UPS 1000 isp. T
The domestic manufacturer of the Bastion brand accompanies its products with all the necessary certificates of conformity. The product of the company, with a name like that of a sea animal - SKAT-UPS 1000 isp. T is successfully used as an uninterruptible power supply in the provision of individual boiler houses in the private sector.
Pumping and boiler equipment is under reliable protection for up to 28 hours at a load of 200 VA and battery capacity, Ah 3×150. These values are quietly enough to power five pumps and other electronic components, for which even a short-term power outage is excluded. How it works is shown in practice in the video review:
Feedback on the UPS SKAT-UPS 1000 was left to us by Valery Ignatievich
First, I’ll tell you about the pros, this uninterruptible power supply has been working for me for four years, without any complaints. I took it on the advice of a colleague, then it was not at all expensive and, as it turned out, quite reliable. In general, it is difficult to write a review on a device that works offline without requiring any intervention. Bought, put on the boiler and forgot.
It extinguishes power surges, saved several times from a complete blackout, in a word, does what it is prescribed for. He remembered what shortcomings he could find, but he did not remember any particular ones. Unless the fan is noisy under heavy loads. But since I have a mini boiler room in the basement of the house, this does not create any inconvenience.
When writing a review, I noticed that the price of the SKAT-UPS 1000/600 220V model starts from only 12 thousand rubles, and this is considering that it already has a built-in 7 Ah battery in the amount of two pieces. However, for long-term offline operation, you need to buy special batteries that are more powerful. Valery Ignatievich, Severostal
Summing up
Our article certainly could not cover the entire wide range provided to the buyer of the uninterruptible power supply by retail chains. In the store you will find from the simplest and not expensive options to advanced ones with LED displays, stuffed with expensive electronics. The main objective of our review is to convey to the owners of individual heating systems that reliable operation of the equipment is possible only when sharing an uninterruptible power supply.
You may not need an expensive option and offline modification is enough. In any case, we recommend not to save on the purchaseUPS for gas boilers, since electricity, unfortunately, is turned off, sometimes at night, and you simply don’t know it. Protecting your UPS is much cheaper than repairing expensive components.
Modern gas boilers are equipped with automation equipment for various purposes. To ensure their operation, a continuous supply of electricity is required. In the event of an interruption, all devices are suspended in an emergency, which can lead to the failure of their equipment. You can eliminate the possibility of a malfunction by using the installation.
Device and principle of operation
Wiring diagram
The UPS for a gas boiler consists of two main modules:
- current stabilizer;
- battery.
The task of the stabilizer is to equalize the voltage, eliminating even the smallest fluctuations. Simultaneously with the automation, the stabilizer also protects the battery during charging.
The number of batteries can be different: the boiler's offline operation time depends on it.
UPS types
Uninterruptibles for a gas boiler differ in the principle of operation and installation method.
According to the principle of action
- UPS offline: the simplest and cheapest device without a stabilizer. It works as follows: as soon as the voltage in the network deviates from the permissible values, the uninterruptible switch for the gas boiler switches to the battery. When the mains parameters are normalized, it automatically switches to it. Switching occurs within 10-15 ms;
- line-interactive uninterruptible power supplies: medium in terms of level and cost. They differ from offline models in the presence of a voltage stabilizer;
- UPS online: at the moment these are the most advanced models that can even work with generator sets. This property is especially important for users whose houses are provided with autonomous power supply (from mini-power plants). In online uninterruptible power supplies for boilers, the input alternating voltage, whatever its quality, is converted into a constant, and then into a stabilized alternating voltage.
By installation method
According to the installation method, uninterruptible devices for gas boilers are divided into two groups:
- wall-mounted: small UPS with a low-capacity battery. Some wall models can be connected to a remote battery installed separately;
- floor standing: powerful uninterruptible power supplies for gas boilers, designed for heavy loads and a long battery life.
Various installation methods
Criterias of choice
The determining parameters when choosing are:
- The total power consumption of the equipment that you are going to protect against voltage surges;
- The battery life of the equipment.
Power
The power of the equipment is indicated in the passport or instructions, the main thing here is to decide what, in fact, you are going to protect. In addition to the gas boiler through the UPS, you can connect circulation pumps, alarms and other installations that ensure the vital activity of your home.
We watch the video, the criteria for choosing a device:
But in this case, it must be borne in mind that at the time of starting the motor, the current consumption increases several times. Most UPS models for gas boilers tolerate short-term overload normally, but it doesn’t hurt to insure yourself and take a model with a 30% power margin.
Battery life
The time period during which the uninterruptible power supply will provide autonomous power to electrical equipment depends only on the battery capacity. Usually the manufacturer indicates the autonomy time in the technical documentation. But in practice, this indicator is somewhat different from the declared one due to the coefficient of the depth of discharge and the efficiency of the converter. The battery capacity required for a particular case can be calculated using the formula:
C \u003d (T x P) / (8.65 x N), where
T - the autonomy time you need (it depends on the degree of stability of the electrical supply of your home) - in hours;
P - the total power consumption of the equipment that you plan to protect against voltage surges - in watts;
N - the number of batteries that your chosen model of uninterruptible power supply is equipped with;
8.65 - constant (constant value).
By doing a simple calculation, you will see whether this UPS model is suitable for your purpose or not.
Some subtleties
Specifically for gas boilers, no one produces uninterruptible power supplies. Simply, many models are produced that differ in characteristics - switching time, output voltage shape, battery charge current. When choosing an uninterruptible power supply, you should pay close attention to these parameters:
- The switching time to "autonomy" should be "0". If that indicator differs from zero, then you have a linear-interactive uninterruptible power supply for a gas boiler, unsuitable for working with precision electronics;
- The output voltage shape must be sinusoidal (depending on the translation, “sine” or “pure sine” may be indicated in the technical documentation). If the manufacturer wrote “quasi-sine” or “approximated sine wave” - this is a UPS designed to protect computer equipment, TVs or fire alarms. It will not work to protect the boiler;
- Battery charge current - the passport should indicate "4, 6, 8.10 A". If there is no such data in the documentation, then the model will work from 5 to 15 minutes offline.
Another important point when choosing a UPS is the presence of a service center in your region. Otherwise, in the event of a UPS failure, it will have to be sent somewhere, then it will take a long time to wait for its return. And at this time, your boiler will be deprived of protection.
Popular Models
In Russia, the following models are considered uninterruptible for gas boilers:
INELT Monolith K 1000 LT
Monolith K 1000LT
Monolith K 1000 LT - on-line UPS. Voltage conversion - double. Provides long battery life of the equipment. Depending on the battery capacity, the model can support the operation of the boiler for up to 15 hours.
The Monolith K 1000 LT does not have built-in batteries, it is equipped with a high-power charger. It can be connected to a battery with a capacity of up to 150 Ah. The price of an uninterruptible power supply for a gas boiler is about 17.5 thousand rubles.
This double conversion model with single phase input and output is rated for 1kVA equipment power. The output voltage is 220 V. The battery is not included in the supply package of the uninterruptible power supply: it is designed for external connection of batteries of the capacity required by the user.
Models STIHL VoltGuarg
The device is equipped with protection against short circuit and battery discharge. You can buy a UPS for a gas boiler of the VoltGuarg HT1101L brand for 18,400 rubles.
Bastion SKAT-UPS 1000 isp. T
SKAT-UPS 1000 ver. T is used to provide uninterrupted power to the nodes of individual heating systems, automation of boiler equipment and other devices for which even an instantaneous power outage is unacceptable.
With a load of 700 VA, the SKAT-UPS 1000 ver. T can provide an autonomy time of just over nine hours (when connecting three 200 Ah batteries).
What users say
Users of gas boilers unanimously argue: a UPS is definitely needed to protect it. Moreover, many of them prefer devices of domestic production. They have a case made of good steel, and all the information is in the vernacular. Dissatisfaction is caused by the excessive noise of uninterruptible power supplies with coolers.
Watch the video about the SKAT-UPS 1000 model:
Some craftsmen change the "native" fan to a silent one. Another disadvantage is that a UPS with a fan collects dust. But if the cooler in the model works constantly, even while the boiler is running from the mains, it can be placed in a closed box - and the problem will be solved.
Modern boilers for heating are no longer just a unit for burning fuel. These are quite complex and technologically advanced systems, most of which can only work if there is power in the mains. And the point is not only that the circulation of water in the system is provided by pumps, but also that the boilers have automation, control devices that not only consume electricity (albeit a little), but are also very demanding on its “quality”.
In order not to depend on the availability of electricity, there are several ways:
- Make the heating system non-volatile. Not the most attractive option in the sense that such systems are not efficient enough and consume more fuel than their counterparts with automation.
- Have two heating systems: one with automatics, and as a backup - non-volatile. The idea is good, but expensive - one system costs a lot of money, and two - and even more. But in some cases - with severe winters and frequent and prolonged power outages, this may be the only way out.
- Make your own system more energy independent with the help of uninterruptible power supplies - UPS (or UPS in the English version).
Many people are familiar with these devices: almost all owners of stationary computers have such uninterruptible power supplies, but they are not quite suitable for boilers. Their tasks are different: for a computer uninterruptible power supply, the main task is to provide you with time to properly shut down the system. This is a maximum of 5-15 minutes. For boilers, the situation is different - operability is required for a long time - until the power supply is restored.
The requirements for the form of power are also different: UPS for computers often do not give out a sinusoid (which is required by boiler automation), but pulses with a cut top, more reminiscent of rectangular ones. It is the correct sinusoidal shape that is important for the operation of the boiler automation. Phase matching is also required, which is unimportant for a computer. Only with such power, the automation and the boiler itself will function for a long time. At least that's what the manufacturers say. Operating experience confirms this. In general, as an emergency exit, an uninterruptible power supply for a computer is suitable, as a permanent one - hardly.
What are UPS
Uninterruptible power supplies are divided into two classes: on-line and off-line. Cheaper off-line class UPSs, because due to the peculiarities of their work, they are structurally simpler: as long as the mains voltage is present and does not differ much from the specified parameters, they pass the power supply in transit. In the event of a power failure or when one of the parameters reaches a threshold value, the network is turned off, and batteries are connected. What is the downside? The fact that the voltage supplied to the automation input is not ideal either in form or in nominal value. This, of course, is better than nothing, but does not guarantee trouble-free operation.
Uninterruptibles for the on-line class boiler are constantly connected, they constantly convert the mains voltage and “equalize” the characteristics. To do this, the voltage is converted twice:
- the input voltage of the network is transformed into a constant - 12 V,
- then it is again converted to alternating 220 volts and a frequency of 50 Hz.
This two-stage conversion is necessary to stabilize the power supply parameters: the output of such a UPS is always 220 V, 50 Hz and a perfect sine wave. In addition, in these devices, the batteries are connected in buffer mode (constantly recharged).
Which is better for the boiler
Using uninterruptible power supplies is necessary not only for the operation of the system during a power outage. According to the assurances of organizations servicing heating boilers, the most common breakdown is precisely the failure of automation due to power failures. Moreover, the damage is such that they either require a complete replacement (and this is at least $ 100-150) or replacement of microprocessors, which can be even more expensive (together with replacement work).
To extend the period of uninterrupted operation of automation and the boiler as a whole, a stable voltage is required, close in shape to an ideal sinusoid. Unfortunately, our electrical networks give out such characteristics that most of the equipment quickly starts to fail and fail. Therefore, the use of a UPS for a boiler with automatic control is highly desirable. It is the on-line class that provides the required power supply parameters, therefore this option can be considered the best, both for, and for, x or.
It is advisable to buy a UPS for an off-line class boiler if you have a general power supply stabilizer for your home, or a portable one will be installed directly in front of the uninterruptible power supply. Then the voltage is “levelled” on the stabilizer, and then it is transmitted through the UPS, which, if necessary, will connect the power supply from the battery.
We determine the power of the UPS and the capacity of the batteries
The choice of a UPS for a gas boiler does not end with the definition of the device class. More power needs to be added. To do this, it is necessary to sum up the power of all devices that ensure the operability of the heating system (pumps, automation and gas removal turbines, if any). In principle, this is the desired power, but for peak loads during system start-up, a margin of the order of 20-30% or more is required.
Although boilers for heating are energy-dependent equipment, they consume very little electricity: the average power consumption of a boiler with a pump is up to 150 watts. To ensure the operation of such a boiler with one pump, a 300 W UPS is required. If there are two pumps in the system, you already need a device for 400-500 watts.
To ensure long-term operation of the boiler in case of an accident on the power line (1-2 hours), a certain amount of batteries is required. It is clear that the larger the battery capacity, the longer the guaranteed operating time. But the choice of battery capacity is influenced by such a UPS parameter as the power of the charger. To determine what capacity your uninterruptible battery will charge, multiply the charge current by 10. If the charge current is 7.5 A, then the capacity of the battery being charged can be 75 A / h.
Large batteries can also be charged, but then their charge will be incomplete, which will lead to their faster failure. Charging less powerful batteries with high currents is also undesirable: their service life is reduced. Therefore, the use of large-capacity batteries does not always give a good result: a situation may even arise when the boiler from the uninterruptible power supply does not work. Most likely, due to insufficient charging current, the battery does not charge, therefore, power is not supplied.
What else you need to decide - with the type of battery. They can be helium or liquid (normal). Helium - more reliable and durable, but cost 2-3 times more expensive (service life and reliability are far from proportional to the price). Regardless of the type, they must be airtight, unattended, as they will be used in a residential area or close to it. In principle, it makes more sense to buy ordinary car maintenance-free batteries - it is much cheaper even taking into account their more frequent replacement (compared to helium).
To make it easier to determine how long the operation of the equipment will be guaranteed depending on the power consumption, battery capacity and number, see the table.
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Some UPS models and their differences
UPS "Phantom" or Phantom for heating boilers - a product of a Ukrainian company. Refers to the class of on-line devices. It has an infrequent, but useful function - an economical "Eco" mode, which allows you to extend the battery life without recharging. The presence of an intelligent charger is also announced, which extends the operating period of the battery.
UPS "Phantom" for heating boilers
Inverter "Calm" PS12-300A - has a very long service life - 30 years, can charge a large number of batteries, provides a safe and reliable battery connection. This device was designed for cars, but the output parameters are stable enough to ensure the performance of power-sensitive equipment.
Issues "Calm" and uninterruptible power supplies on-line type, but calls them ABP - uninterruptible power supplies. The power of the units is 150-400 W, two 12 V batteries are optionally supplied. This device has one very interesting function - switching to the “bypass” mode in case of overload.
UPS "Shtil" for heating boilers
UPS "Bastion"- on-line class devices, provide a stable sine wave at the output (distortion less than 5%), are produced with a power of 500-800 watts. They have good reviews, they are distinguished by increased reliability.
UPS "Bastion" for heating boilers
UPS Luxeon for the boiler. The Luxeon UPS-500LU model - the reviews are briefly as follows: after turning off and recharging, it does not “remember” the previous state and turns on spontaneously, which will eventually lead to the failure of the boiler. Another drawback is the squeak during battery operation, in addition, when switching to battery operation and back, the boiler often gives an error and does not work. There were no reviews on other UPS models from this manufacturer, but this particular model can hardly be recommended for use.
In this video you will see a test of some UPSs that have recently appeared on the market. This material allows you to objectively assess how the real characteristics correspond to the declared ones.
How to make an uninterruptible boiler
Is it worth it to assemble a UPS with your own hands? Maybe. It all depends on how much you understand electrical engineering. But even the best do-it-yourself devices are very often inferior in terms of reliability and quality to industrial counterparts. What could be the savings? If you assemble a UPS from ready-made blocks, then you can save about 30% of the cost, if you do everything yourself - about 60-70%.
Here is an example of a homemade high power UPS that can provide uninterrupted operation of a large number of electronics and household appliances. The maximum power of all devices is 1 kW, the principle of operation is on-line, i.e. switched on permanently, the output voltage is a sinusoid.
What is needed for a UPS
- A switching power supply with high efficiency and power, namely 28.8 V at 50 A. This voltage makes it possible to connect batteries directly without adapters and ensure their full and constant charge (the circuit has been operating for 8 years and there have been no problems).
- Two lead car batteries for 12 V and 200 Ah.
- An inverter that outputs a square wave of 310 V and a duty cycle of 1.
- Power resonant filter of higher harmonics. It will have to be made by yourself.
You buy all the components on the market or in stores, connect them as shown in the diagram, and the UPS is ready with your own hands, and it supports the operation of not only the boiler and pump, but also the computer, lighting, the operation of the water supply pump, etc. The main thing is that the total power does not exceed the maximum allowable. But, of course, the lower the load, the longer the devices will work. Although, at low loads, this particular UPS has a low efficiency: at idle, it drains the batteries in 35 hours.
The main difficulty in the whole circuit is to assemble a resonant filter of higher harmonics, which will allow you to get an alternating voltage of 50 Hz and a shape close to a sinusoid at the output. Its scheme is simple. The main thing is the calculation of parameters. The elements of the circuits are calculated and manufactured in the same way, only then they are assembled differently - one circuit is serial, the second is parallel, but both are tuned to a frequency of 50 Hz.
Capacitors were taken non-polar per microfarad. It can be assembled from two 50 uF phase-shifters by connecting them in parallel.
Next, you need to calculate the parameters of the inductors for the core that you have available. To get the desired inductor, you will need to make a gap in the core (if you need a gap of 1 mm, the gasket in the W-shaped core should be twice as thin - 0.5 mm).
Here are the formulas for calculating the parameters:
- (Gap, mm) = 1.257E-3 * (Maximum possible current, A) * (Number of turns)
- (Number of turns) \u003d 1.257E6 * (Maximum possible current, A) * (Choke inductance, H) / (core cross-sectional area, mm 2) - we round the resulting value up
- For a parallel circuit(Maximum possible current, A) \u003d 1.4 * 220 V / 28 * (Signal frequency, Hz - 50Hz) * (Choke inductance, H)
- For serial circuit: (Maximum possible current, A) \u003d 1.4 * (Load power, W) / 220 V.
Calculation example is given below
Batteries should be connected in parallel at a short distance from the UPS - to reduce voltage drop when working under load. Make all connections with thick stranded copper wire, since peak currents can be up to 100 A. Make connections as reliable as possible, pay special attention to the places where the wires connect to the battery terminals. These compounds will need to be checked periodically as they often oxidize, increasing resistance and degrading system performance. From maintenance, you will only need regular monitoring of the electrolyte level in the battery.