When installing a heating boiler with a pump and electronic control, it is recommended to immediately purchase an uninterruptible power supply (UPS). This device will allow you to continue to warm the room even in the absence of electricity. But not every device is able to provide equipment for a long time.
We will tell you how to choose the right UPS for gas boilers. In the article proposed by us, the varieties used in practice are described in detail. Taking into account our recommendations, the installation and operation of the device, and the heating system as a whole, will not create the slightest problem.
The content of the article:
- The need for UPS for heating boilers
- The principle of operation
Types of uninterruptible power supplies
- Option # 1: backup
- Option # 2: Line Interactive
- Option # 3: continuous
- Types of batteries
UPS selection rules
- Criteria for choosing a bespereboynik
- Rating of the best UPS for boiler
- UPS Operation Tips
- Conclusions and useful video on the topic
The need for UPS for heating boilers
Most modern gas boilers require constant connection to the power supply. From the network works circulation pump, control unit, ignition system, forced ventilation.
Advanced users of heating equipment install GMS modulesallowing you to control systems from a distance. In the event of a power outage, the operation of the entire set of the listed devices stops and the heated room begins to cool.
It is easier to install a UPS and prevent the electronic components of the gas boiler from igniting due to overloading than to pay for the consequences of a large-scale fire.
Electronic components gas boilers picky also to the voltage parameters. The large length of power grids in country houses often leads to its decrease in the network, as well as to the deterioration of the frequency characteristics of the current. As a result, the boiler can work intermittently or not at all.
All electrical problems are solved by installing UPSs, some models of which are capable of not only providing backup power to the equipment, but also correcting the shortcomings of voltage and frequency.
Automatic voltage stabilization with a bespereboynik allows to reduce the load on the electric converter boards of the gas boiler and increase their service life
The advantages of installing a bespereboynik for a gas boiler are:
- Overvoltage protection. The cost of the UPS is several times lower than the price of a new electronic board for the boiler.
- Easy installation, does not require special skills.
- Automatic control of the electrical parameters of the network.
- Service life up to 5-7 years.
- No need for service.
- Silent work.
In severe frosts, stopping heating equipment even for a few hours can lead to rupture of pipes located close to the street. Therefore, ensuring the continuity of the boiler using the UPS is not a whim but a rational decision to save time and money.
The principle of operation
The main task of the UPS is to supply sufficient voltage to the network when the light is turned off. Switching to battery power (battery) should happen in a fraction of a second so that the connected equipment does not have time to turn off.
Bespereboyniki also able to stabilize the voltage, rectify the sinusoid and maintain the current frequency in the normal range. But not all models have additional features.
When choosing a bespereboynik for the heating system, you can take a more powerful device, so that you can optionally connect other devices to it
UPS device is not the same.
In the maximum configuration bespereboynik consists of the following elements:
- accumulator battery;
- current and voltage converters (inverters, rectifiers, etc.);
- control chip.
The following characteristics of the UPS are important for the operation of the connected equipment:
- Type of output voltage curve: approximated or ordinary sine wave. The first option is less preferable because it is unusual for most electronic devices and leads to their increased wear.
- Power consumption The pump and fan motors have high starting currents, therefore the maximum performance of the UPS must be at least 2 times higher than the power consumption of the boiler.
- Speed switching to backup power supply. The higher it is, the better for the connected equipment.
- Electric capacity It depends on the battery life of the entire heating system. To increase the capacity of the UPS can connect additional external batteries.
- Life time. It depends on the mode of operation and the internal structure of the batteries.
- The range of incoming network parameters that allow the UPS to produce acceptable voltage, frequency and sine wave without switching to battery.
- The presence of grounding ("pass-through" zero).
In standalone mode, UPS can produce 2 types of sinusoids:
Smooth sine wave is more acceptable and always ensures the normal operation of the connected equipment.
The indicated operating time of the equipment from the bespereboynik are indicative. The exact time can be obtained by testing a specific set of equipment.
The cost of bespereboynik directly depends on the battery capacity, additional functionality, as well as compliance of the outgoing parameters of current and voltage to standard values. However, even the cheapest UPS is better than none.
Types of uninterruptible power supplies
Manufacturers bespereboynik produce devices for any financial budget, but the more expensive it is, the higher its functionality and battery life.
UPS can be divided into three main categories according to the principle of operation: continuous (on-line type), linear-interactive and backup (off-line type). In more detail, each type of bespereboynikov will be discussed below.
Option # 1: backup
In the presence of electricity in the network, a backup or off-line uninterrupted power supply plays the role of an intermediary, transferring voltage and current with the same characteristics that are available at the input to the device.
Only when a power outage or its parameters go beyond the programmed range does the UPS transfer the connected equipment to battery power.
The controls for low-cost backup idlers are usually limited to one button, various combinations of taps which allow you to adjust the operation of the device
Backup UPSs are usually equipped with batteries with a capacity of 5-10 Ah, which are sufficient for continuous operation of the boiler for 10-30 minutes. Their main functions are to prevent the instantaneous stopping of heating equipment and to provide time for its correct manual stop.
The advantages of off-line UPS are:
- No noise.
- High efficiency when powered from the network.
- Low price.
Disadvantages of off-line uninterrupted services:
- The switching time for the battery is 4-12 m.
- The inability to adjust the characteristics of voltage and current.
- Work from the gas generator is dangerous for the boiler, because the sinusoid parameters are not maintained.
- Low battery capacity.
Many models of backup power supply units require the installation of external batteries, due to which their battery life can be increased. But even with a powerful battery, they will remain just the boiler's power switches from mains to autonomous.
Option # 2: Line Interactive
Linear-interactive bespereboniki more advanced than backup. In addition to the battery, these devices have voltage regulators, which allows them to provide 220 V output.
More expensive models are able to analyze the sine wave view and switch the power to the batteries when it is distorted by more than 5-10%. Such a coronary artery disease is incapable of correcting the shape of the sinusoid when working on the network.
Control of line-interactive UPS is more complicated. It usually allows you to set the boundaries of the input voltage range and set the delay time of the connected equipment
Line-interactive models with high output power are often installed at the input. electrical wiring to the house. Usually they are connected to capacious external batteries.
The advantages of line-interactive UPSs are as follows:
- A small interval for switching to offline mode is 2-10 ms, which practically does not affect the operation of the connected equipment.
- High efficiency when powered from the network.
- The ability to stabilize the voltage even without a battery.
Disadvantages of linear interactive bespereboynik:
- Inability to influence the shape of a sinusoid when powered from the network.
- Capacity is limited to 5 kVA.
- No current frequency adjustment.
Line-interactive UPSs are more likely to buy backup, because they are additionally equipped voltage regulatorallowing heating equipment to work more correctly.
Option # 3: continuous
The output parameters of the power supply of continuous (on-line) bespereboynik do not depend on their incoming characteristics. Connected equipment is always battery powered, regardless of the presence of input voltage. This is achieved by converting electricity in two stages.
First, the incoming voltage drops, the alternating current is rectified, and electricity is used to recharge the battery.
Continuous UPSs have an expensive multi-component scheme that is economically viable only with high power of the connected equipment and the corresponding battery capacity.
With the return of electricity is the reverse process. Electricity is removed from the battery contacts, the current is converted to alternating, the voltage rises and is fed to the output of the uninterrupted power supply.
As a result, the connected equipment operates in a completely autonomous mode with stable electrical parameters. He is not afraid of power surges, distortion of a sinusoid and even lightning strikes. External factors may damage the UPS, but not attached to it. gas column or floor boiler.
Advantages of continuous UPS:
- In the event of a power outage, the power of the connected devices is not interrupted.
- Stable voltage and frequency parameters, correct sine wave, which is especially important when connecting a gas boiler.
- Protection against unexpected voltage increase.
- Trouble-free connection to the gas generator to replenish the charge.
- The possibility of adjusting the output voltage.
The main disadvantages of on-line bespereboynik:
- Increased noise and heat dissipation during fan operation.
- Low efficiency (80-94%)
- The cost of continuous bespereboynik exceeds the price of linear-interactive models in two or three times.
The advantages of on-line type UPS are obvious. These bespereboynik are quite expensive, but provide the maximum possible electrical protection of the gas boiler. When connecting to them a battery with a large capacity, you can not worry about the normal operation of heating equipment, even when a power outage.
Types of batteries
For UPS, only lead-acid batteries (ALS) are made, which are heavier and more lithium, but much cheaper. In bespereboynik used sealed batteries that are safe and do not require maintenance.
The tightness of lead-acid batteries can be deceptive, so do not tempt fate and turn the device sideways or upside down
On sale you can find batteries for UPS two types:
- gel (GEL);
- fiberglass (AMG).
Silicon compounds are added to the electrolyte of gel batteries, due to which it is very thick. As a result, the contents of the battery does not spill out when shaken and does not spill over when the device rolls over.
Oxygen and hydrogen released during operation are absorbed by the gel and slowly interact with each other to form water. This ensures complete safety of the batteries.
Gel battery inside does not have a liquid in its usual sense. It consists of several independent flasks, inside of which are located synthetic electrodes coated with a viscous substance.
The interior of the AMG batteries is filled with porous fiberglass mats, which also help to slow down the interaction of oxygen and hydrogen. The disadvantage of such batteries is a liquid electrolyte, which still can leak out if the battery is damaged or when it is tilted upside down.
If the fiberglass battery is mechanically damaged, it is strictly forbidden to collect the leakage liquid with a cloth. It is a strong acid that can burn skin.
Because of the greater security, helium batteries are more expensive than fiberglass by 10-20% with similar capacity. But if the UPS for heating equipment will quietly stand on the floor, then there is no sense to overpay the extra money.
Many bespereboynik provides the ability to connect external batteries. With parallel use of multiple batteries, it is important that they have the same technical characteristics. This will allow the batteries to evenly discharge and recharge and increase the life of each of them.
UPS selection rules
The capriciousness of the electronics of gas boilers does not allow to save on reliability and functionality of bespereboynik. Next will be considered the criteria by which you need to choose a UPS for heating equipment, as well as a rating of the best devices.
Criteria for choosing a bespereboynik
The choice of UPS for a heating boiler is rather complicated due to the variety of their technical parameters and a variety of equipment manufacturers.
But there are a number of characteristics of bespereboynik, which must be considered in the first place:
- The duration of the continuous work offline.
- Full and active power.
- The nature of the sinusoid output.
- Borders of working voltage ranges.
- Ability to connect external batteries.
The duration of the continuous operation of the UPS in standalone mode depends on the battery capacity. If you are not sure that the built-in resources will be enough, then you can purchase a UPS with the ability to connect additional batteries.
The capacity of the uninterruptible power system can always be increased by purchasing new batteries. It is advisable to choose identical batteries.
The specifications of bespereboynik indicate the values of full and active power. It is desirable that the second parameter was two times higher than the total linear power of the heating equipment. This will allow the UPS to withstand the starting currents of the pump and fan motors without negative consequences.
The values of the boundary ranges of the operating voltage are particularly relevant for country houses. In the evening, on remote lines from the transformer, it can fall to 160-170 V. In this case, the UPS will constantly switch power to the battery, so it is better to purchase a power supply with an integrated stabilizer and a low operating voltage threshold.
Approximated (1) and pure (2) sinusoid. All electronic equipment of the gas boiler is designed for operation on a pure sine wave, therefore its approximate type can disrupt the operation of individual components.
Approximated sinusoid badly affects the operation of electric motors: they are buzzing, performance drops.
Chip gas boiler may also be unstable, because of which the equipment may spontaneously turn on or off. Therefore, to supply heating systems, it is preferable to purchase UPSs with a smooth sine wave, which will not cause problems.
The bespereboynik have many additional technical characteristics, but their values are not so critical for the operation of the gas boiler.
Rating of the best UPS for boiler
The compiled rating is based on the overall functionality of the UPS, ensuring long-term and stable operation of the gas boiler.
1 place. The best option for a gas boiler would be a bespereboynik with continuous action and an external battery for 50 Ah and more.
It will ensure round-the-clock stable operation of heating equipment and its autonomous functioning for 3-5 hours. Good models in this category are Legrand DAKER DK 1kVA, LogicPower LPY-WPSW-1000VA, CyberPower OLS1000E, Luxeon UPS-1000LE and Delta Amplon N1K.
The LogicPower LPY-WPSW-1000VA bespereboynik is a device with double voltage conversion and will be the ideal solution for boilers with a power consumption of up to 500 W
2nd place. The middle of the rating is occupied by linear-interactive devices with a wide range of operating voltages, a smooth sinusoid at the output and the ability to connect an external battery. The cost of the devices, which will be enough to operate the gas boiler, is in the range of $ 100.
Typically, these UPSs already contain a battery that will provide 5-20 minutes of operation of the heating equipment. For a longer duration, you can connect an additional battery to the besperer, the capacity of which is limited only by the size of the wallet.
The best models in this category are REALEL HOME UPS-1000, Luxeon UPS-1000ZY, PowerWalker VI 1000PSW, APC SmartUPS XL 1000VA and LogicPower LPY-BPSW-800.
Bespereboynik Luxeon has a minimalist design and is suitable for most domestic gas boilers. An external battery can be connected to it.
3rd place. It housed backup-type devices with minimal power, a small capacity of built-in batteries and an approximated sine wave.
Sudden rises in voltage can be transmitted through such UPSs to the heating board of the boiler and cause it to break. And the capacity of the battery of such uninterruptible power supplies is enough only for 10-30 minutes of continuous operation of the heating equipment, after which it will shut off anyway.
Popular models in this category are FSP DP 450VA, CyberPower Value500EI, Powercom WOW-500U and Mustek PowerMust 424EG SVEN Pro + 400. You can buy these devices for a gas boiler only if there are not enough funds to purchase a more suitable device.
A small backup UPS is more suited to the autonomous operation of a computer than a gas boiler. Therefore, such devices are rarely recommended for the operation of the heating system.
When buying a UPS, you should pay attention to the date of its release, because the battery inside it loses its capacity over time. But the equipment may lie in stock until it reaches the counter for several years. Do not neglect the advice of the seller, especially if they are based on the experience of previous buyers.
UPS Operation Tips
Installing the UPS is quite simple - just read the instructions and connect all external devices as described in it.
Efficiency of powerful bespereboynik decreases due to the constant operation of the fan, which provides cooling located inside the current transducers and batteries
Work bespereboynik simple and does not require human intervention.
However, there are nuances of operation that are not described in the instructions, which you should definitely read:
- The UPS and external batteries should not be located near each other and heat sources. The optimum temperature for this equipment is 20-25 ° C.
- A room with bespereboynikami should not be wet, the formation of water condensate in it is especially dangerous.
- It is undesirable to use line filters and tees at the UPS output.
- If the design of the bespereboynik provides for the case grounding, then it must be ensured.
- The UPS must be permanently connected to the network after commissioning.
Following these simple rules will extend the life of the bespereboynik and protect the house from fire and short circuit.
Conclusions and useful video on the topic
The presented videos will help to better understand the principle of operation of various bespereboynik and assess the effectiveness of their work.
Video # 1. Methodology for choosing a UPS for a heating system:
Video # 2. UPS connection and testing:
Video # 3. Overview of various types of bespereboynik:
Connecting heating equipment through an uninterruptible power supply is dictated by economic feasibility. In the event of extreme network overloads, it is the UPS that will take the brunt of it, protecting the more expensive gas boiler from breakage.
In the estimate of the installation of the heating system, it is always necessary to take into account the cost of the uninterruptible power supply and the batteries supplied.
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