How do ecm motors work. Look for labels such as L, N, H, M, etc.

How do ecm motors work ECM 2. There are taps from the motor that provide different torques, similar to a three or four speed PSC. Is it worth replacing an old AC motor with an ECM motor? If your old AC motor is nearing the end of its life, replacing it with an ECM motor can be a worthwhile investment. Once you have unplugged the system, then turn on the power again and check the plug with a meter for proper power value. How does it work? The variable speed furnace varies the amount of circulated air, unlike conventional motors that operate at one 1800 RPM. Just know that the PMAC motor needs a drive, and the ECM motor is the drive. Jul 24, 2024 · What Are ECM Blower Motors? ECM blower motors are DC motors controlled by an onboard microprocessor. Our Cactus Tri-Voltage ECM motors suit fan coil units, propeller fans, evaporators, variable air volume, and heat pump applications perfectly. — Chris Mohalley also covered ECM diagnostics in THIS podcast episode. With PrintStator , users have access to unmatched design freedom and time-to- market for advanced PCB Stator motors. ECMs are more energy efficient than multi-speed motors, require less maintenance, improve indoor air quality, and provide better humidity control. See full list on eepower. The excess heat is what damages one or the other, not the work it's trying to do. MBVC air handler with ECM motor. How Does a PMAC Motor Differ from the ECM Motors? The ECM motors have electronics in them that allows you to change the speed manually or automatically. Didn't have manual. The SEER rating they were trying to achieve at that time was 13, thus the X-13 motor. We have a quote on Daikin and it looks like only some of the blowers will work with Ecobee. Part of the efficiency advantage of the ECM motor is that the external VFD efficiency also adds to the electrical usage. - only non ECM motors. It should be noted that the ECM motor programming is specific to each model of HVAC equipment, so programming is ONLY done at the factory, not in the field. Before we get into troubleshooting, I think it is important to understand what an X-13 motor is and why they are used. I can't figure out if it is the ECM multispeed motor in particular that is a compatibility issue with Ecobee or if it is that there is some sort of communicating system in the furnace that the Ecobee is not compatible. They also describe ECM applications and how those motors work. So, when you see a motor rated at 1075 RPM, it is a 6-pole motor with some allowance for load and slip. The frame size of the Evergreen IM motor is NEMA 48 frame. As static pressure changes, the load to the motor changes. Both of these motors will have a high voltage harness as well. I Show Measurement Vol Dec 13, 2021 · The motor runs much cooler than our traditional AC motors. GE ECM by Regal-Beloit introduced the Constant Torque motor (model… Jun 24, 2024 · Step#2 Locating the ECM Motor’s Input Voltage Wires. They cost more up front, but they pay […] How does an ECM motor work? Electronically commutated devices involve comparable working action. Motors begins to start then stops. On medium speed it is about 50% efficient, and about 40% efficient on low speed. Control of Variable Valve Timing. However, variation in speeds only happens when conditions within the system change. Motor phases are sequentially energized by the electronic Feb 3, 2020 · A 6-pole (1075 RPM) PSC motor is 60% efficient on high speed. Here is a great video on how they work: The motor is an AC motor, it is inverter driven. It stresses them out and can cause premature failure of the module, it also negates any energy savings you would get over a PSC motor. Variable-speed ECM motors offer slow start or soft start capabilities. How does a PCB Stator motor work? - What are the advantages of PCB Stator motors?Follow the link to fins out more - https://pcbstator. Electronically Commutated Motors (ECM) and Variable Speed Motors play a pivotal role in this goal. If the igbt is failing due to voltage brownout, then quit buying these damn motors. Oct 27, 2012 · Since posting the information on ECM motors and standard motors, I have had a number of request for information on the X-13 motors. can perform flawlessly. In engines that have variable valve timing, the ECM is responsible for controlling the point in the engine cycle during which the valves open. How to reverse this motor. If the motor does not run, unplug the 16 pin wiring harness from the motor (fig. A PMAC motor requires a variable frequency drive (VFD). Nov 6, 2024 · ECM Motor - Everything You Need To Know Feb 28, 2024 · Achieving optimal efficiency, reliability, and cost savings is crucial in the HVAC industry. Hello, I have a GE ECM motor in a blower I wish to use as a shop/yard fan. Goodman. The Evergreen IM requires a belly band style Jan 7, 2021 · Note the similarities to the VFD in the ECM in Figure 3. EC motors (ECMs or “ECM motors”) are electronically commutated motors. Operation: Uses electronic controls to adjust speed and torque. Getting diagnostic fault code six. But best of all, it works as a plug & play solution and does not require a transformer control unit, a variable frequency drive, or a motor protection switch, for example. 3 Troubleshooting: What is the motor doing or not doing? For this motor to operate, make Nov 1, 2019 · A constant torque ECM performs more like a PSC motor. Feb 6, 2023 · Does your furnace fan utilize an ECM motor? ECM motors are a recent advancement in HVAC technology that is gaining popularity. Repairing ECM: What’s When making a decision regarding your furnace, there are many considerations to make. It has a elaborate circuit and DC brushless motor. The ECM is tasked with providing fuel and regulating emissions, but there's a lot that needs to happen for that to work. The question of whether it will also be possible to power aircraft with electricity in the future is particularly interesting. Now, disconnect the power first and remove the 5-pin connector from the module. Dec 24, 2023 · How Does an ECM Motor Work? Electromagnets inside its stator are energized by an electromagnet inside the stator. How does an ECM Motor work? Aug 25, 2023 · How Does an ECM Motor Work? The ECM motor functions by energizing a series of electromagnets inside the motor’s stator. This can be seen by blocking a blower discharge. The PMAC motor cannot work without a VFD. Brushless induction motor basics. Put 24 volts to pins 12 and 15 and 24 volt common to pins 1 and 3 at the motor (fig. Nevertheless, it can operate in a broad and easily controllable speed range. The government sets the standard, so the industry has to keep up. Step 1: EC motor rectifies the AC voltage by the electronic commutation. It holds the logic that controls the motor Jun 14, 2022 · To determine whether your system has an ECM motor, refer to your furnace’s owner’s manual or ask your HVAC contractor. What is the average cost of an ECM motor replacement? Nov 14, 2018 · The days of inefficient single-speed, on-off furnace blowers are gone. Feb 22, 2021 · The AC power goes only to the motor controller; the motor controller outputs go to the ECM motor's windings. How Does an ECM Motor Work? An electronically commutated motor (ECM) is a type of motor that uses electronic circuitry to control the speed and torque of the motor. These motors are generally three-phase AC motors operated by a drive; that drive is a combination of an AC-to-DC converter, microprocessor, and frequency drive. The choke reads - 2. 5. Today’s units utilize multi-speed motors or variable speed blower motors, also known as electronically commutated motors (ECM). Before you make a decision, it is important to understand the difference between a variable speed motor and an ECM motor. Here is a great video on how they work: With ECM condenser fan motors always check the obvious things first. If the original motor has the same frame size, the original mounting bracket should work on the Evergreen IM. These systems can deliver precise airflow to match two-speed condenser designs and multi-stage gas furnace firing rates to deliver quiet, draft-free comfort in virtually any configuration. These motors come pre-programmed from the factory according to the specific HVAC equipment model they are made for, including maintaining a constant torque, airflow, or speed level. ECM Motor VS VFD: Key Differences. How do they vary speeds? Some are Delta T pumps and vary speed based on supply and return temperatures to maintain a constant Delta T, usually 20 degrees in most systems. com/Brands/GenteqM Apr 1, 2020 · An important insight to ECM Motors, and how they work. 6-pole is 1200 no-load (no slip). ECM motors into the commercial heating ventilation and air conditioning (HVAC) market. Variable-speed ECM motors if programmed and set properly improve system temperature, humidity, and capacity. These modules use algorithms to constantly monitor and adjust the motor’s performance to optimize energy efficiency and performance. Check for clean condenser coils and possible moisture issues around the motor or control module. Continued… ECM Blower Motor Quick Test Aug 24, 2017 · Since the motor’s speed is controlled by external electronics, EC motors do not have a limited synchronous speed. ECM programmable, allowing for advanced characteristics that are impossible to create using conventional motor technologies. How do ecm motors work? 5 symptoms of a bad ecm (and replacement cost in 2024)China ecm fan motor ecm motor bldc fan motor ecm evaporator motors Why your engine won't rev up past 4000 rpmCommon symptoms of the bad ecm. Check Details Check Details. ECM motors are equipped with sophisticated electronics that enable them to optimize performance and reduce energy consumption, making them a popular choice in heating, ventilation, and air conditioning (HVAC) systems, as well as This is a comparison video of a PSC Motor vs Constant Torque Motor vs Variable Speed Motor. Understanding that the ECM motor was a significant price increase over Jan 19, 2021 · How Electric Motor Works - 3 phase induction motor AC alternating current. Variable-speed ECM motors can vary the speed based on input from a control board. Sep 25, 2024 · Question 1: How does a brushless motor work without brushes? Answer: Where does the current come from in a brushless motor? There are no coils on the rotor, so it doesn't work. An 825 RPM motor is an 8-pole motor with some allowance for slip. There are some important differences between ECM motors and VFDs that impact their performance, flexibility, cost and ease of use. It's not necessarily just for long cable lengths either. Jun 16, 2017 · ECM motors, also known as variable speed motors, are motors that can vary the RPM of their motors. In the simplest terms, an ECM motor lowers the total electrical consumption of an How does a Constant Torque ECM motor work? A Constant Torque ECM motor maintains steady torque and airflow by adjusting its speed based on system conditions. Electronically commutated motors (ECM) represent an advance in blower motor efficiency that saves substantial energy and improves aspects of overall system performance. With a constant torque ECM, the output torque of each tap Nov 22, 2014 · A standard PSC blower motor increases speed as SP increases while amperage drops. I just found one on line. Not sure how Goodman does it but in 1 brand we use, the X13 will go to 1/2 speed for constant fan, like a variable speed motor does. What does the future hold? It is obvious that e-mobility is the future in many different areas – think of trains or ships, for example. Wires on some ECM motors may be labeled for easy identification. S. The sudden change in frequency, plus the back emf from the motor, can cause all sorts of weird distortions in the AC waveform a Feb 1, 2024 · 4. May 6, 2022 · A 4-pole motor only goes half the way around per cycle; this makes the no-load (Synchronous) RPM 1800. There are three types of ECM motors: constant cfm, constant rpm, and constant torque. —Bryan. May 5, 2022 · What are the differences between an electric motor with an alternating current (AC motor) and an electronically commutated EC motor? We explain the technolog Jul 16, 2018 · The ECM Motor. capacitor. I believe it would work just fine with the Azure motor since it is set up exactly like a standard PSC motor. The motor’s microprocessor, programmed at the factory, controls the motor speed to ensure consistent performance despite changes in static pressure. The ECM motors today are limited to about 10 HP and get expensive above 5 HP. An ECM motor is a brushless DC motor that uses electronic controls to regulate its speed, torque, or power output without external devices or sensors. These terms will be discussed, defined and explained in the following article. In the case of A/Cs and furnaces, the changes occur in an effort to maintain a programmed CFM. Troubleshoot of the motor is included. SMH my head How do ECM blower motors work? ECM blower motors blend the technology of brushless DC motors with integrated electronics for precise control, offering several advantages over traditional motors. Because the motor can run at a lower speed when less heating or cooling is required, it uses less energy overall. Feb 8, 2017 · Rheem 51-24376-10 ECM Motor 1HP ECM Blower Motor W/Module. Jan 2, 2023 · It is also 25 percent lighter than AC motors with the same power. Sep 20, 2024 · An Electronically Commutated Motor (ECM) is an advanced type of electric motor designed for improved energy efficiency and precise control in various applications. Variable-speed blower motors are the most efficient type of blower motor. Ecm motors have thier own current limits set by the igbt drivers and unless the fan is running at high speed, the current flowing through through the motor and igbt block will be the same regardless of the input voltage up to a point. This But the rotor in an AC motor does not have any direct connection to a power source. ECMs are ideal for modern, high-tech air conditioning systems for homes and… Jun 30, 2017 · It gets sweeter though, the 45 watts consumption of an ECM pump is at full speed and these are variable speed pumps. Nov 22, 2021 · During cooling, the ECM motor ramps up slowly, moving air across the coil and giving it a chance to cool. An ECM motor has its controls built right into the motor itself. The X13 is a nice stepup from a standard motor saving energy without the higher initial cost of VS. It’s not universal and I’m surprised it works at all. co/engineeringmindsetj ECM 2. I was able to figure out that one must jump the 1 and 2 pins on the power connector to have it work properly on 120v with info I found on the net. So, what does “constant torque motor” mean? Jan 15, 2021 · But in HVAC machinery where the motor is on a direct drive fan and the cool air is going over the fan and motor all the time, it can work. Check Details. . P. When ordering a replacement ECM motor, techs must know the specs of the model in which the motor will be installed for it to work properly. ECM motors offer significant advantages in terms of energy efficiency, quiet operation, and longevity. ECMs are brushless motors developed by General Electric, which owns the trademark on the name. The Cactus ® Tri-Voltage ECM motors have efficiencies of up to 83%. Most manufacturers do a pretty good job of protecting the ECM condenser fan motor and control module from moisture. The diagnosis of ECM and X13 motors is actually pretty easy if you do a bit of reading and take a practical “process of elimination” approach. Mar 28, 2023 · The top three motors that are typically used in HVAC and refrigeration are electronically commutated motors (ECMs), permanent split capacitor motors (PSCM), and shaded pole motors (SPM). ECM 3. Check that the filters are getting changes regularly and that the duct work is not restricted and sized Nov 19, 2014 · It's my understanding that an ECM doesn't bite the dust because it's drawing higher amps, it's because there's not enough airflow to cool the windings and module. 0 is a communicating motor that consists of four (4) control wires connecting the board to the motor. Part #3 of HVAC Know It All - ECMs (Electronically Commutated Motors). The squirrel cage in an AC motor is a set of rotor bars connected to two rings, one at either end. Oct 11, 2023 · There's lots of buzz on PCB Stator technology disrupting the electric motor industry. MCV18132E Bruh you put a constant torque ECM motor in a furnace with a VARIABLE speed ECM motor. Look for labels such as L, N, H, M, etc. Variable speed furnaces contain an ECM (electronically commutated motor) blower motor, which allows the furnace to operate at higher-efficiency levels. EC motors have several benefits. These brushless motors offer an efficient, reliable, and cost-effective alternative to PSC and ECM motors in the HVAC and pump industries. https://www. But how exactly does a PCB Stator work? In this video electric motor design and software company and A3 member ECM PCB Stator Tech breaks it down. An ECM motor has two main parts: A brushless DC motor; A controller; The ECM motor works by energizing a series of electromagnets inside of the motor’s stator. Instead, it often uses something called a squirrel cage. How does an ECM motor work? ECM stands for an “electronically commutated motor” which basically means a motor that uses electronic controls to vary its speed. Nor does it have brushes. Microprocessors are the key component that makes ECM motors able to provide higher efficiency, since their artificial intelligence system is based on them. The letters ECM stand for electronically commutated motor, which might sound a bit complex to understand. Call a company out, the control board wasn’t the issue. Dec 17, 2024 · Unlike traditional motors, ECM motors do not use brushes to transfer electrical energy to the rotor. ECM motors have variable speeds because the frequency of the 3-phase power is varied. Sep 11, 2019 · Advantages of an Electronically Commutated EC Motor. Thanks to Genteq, industries like commercial HVAC/R found an alternative to the standard induction motor. How does the ECM manage to control SP. The microprocessor is the “brains” of the motor. It's kind of like something a caged mouse (or squirrel ECM’s advanced motor CAD software, PrintStator, is an innovative SaaS platform that transforms user specifications into optimized printed circuit board (PCB) Stator motor designs. The significant difference here is that the ECM has the motor and speed control built into a single unit. While the initial cost of a furnace with an ECM will be higher than a traditional furnace, the typical payback is four to five years. Apr 20, 2012 · An explanation of how shaded pole motors operate. Although both technologies significantly enhance the performance of HVAC systems compared to conventional fixed-speed motors, th. 3 has a 16-pin control wiring harness running from the board to the motor. It is a DC motor that is able to achieve greater efficiency than most AC motors. He mentions the same diagnostic tools we covered here and a few more, so it's definitely worth a listen. Most ECM motors use color-coded wires to indicate Low, Neutral, High, Medium, and other speed settings. All this said, though. Aug 23, 2023 · We're back with part 3 - How does an ECM motor work? We're meeting with a bonafide HVAC Celebrity and Canadian Gem - Gary McCreadie of @HVACKnowItAll In thi Sep 19, 2018 · This video explains the theory, basic internal components, and operation of electronically commutated motors (ECM). X-13 ECM or constant torque motors were designed in 2006 to achieve higher SEER ratings for the air conditioners being put into homes. The GE ECM motor, currently used by most residential HVAC systems is a brushless DC, three phase motor with a permanent magnet rotor. Most of the HVAC ECMs are three-phase permanent magnet motors. Oct 6, 2018 · ECM motors, although designed to maintain a specific CFM, do not like to push high static for a long time. How does an ECM motor work? An ECM motor uses a microprocessor to calculate and maintain the motor's speed, torque, and airflow. Oct 2, 2019 · An ECM motor uses a permanent magnet rotor, eliminating the need for power to be fed to the rotor through brushes. Aug 1, 2015 · When your neighbors units quits working I guess they come get you for help. thld. Seems the ECM would try to speed up to increaee SP in a blocked duct system which would only cause amp draw to decrease. Jul 7, 2023 · How does an ECM motor work? An ECM (Electronically Commutated Motor) is a brushless DC motor that is controlled by a microprocessor. Jan 28, 2020 · The crankshaft position transmits data to the ECM, which then controls the idle speed through an idle air bypass control stepper motor, or a programmable throttle stop. Work mostly commercial and have not diagnosed this unit before. Variable-speed ECM motors enhance the efficiency of an HVAC system. Though ECM motors are still considered an upgrade, they will soon be standard in all furnaces. The ECM is 80% efficient at all speeds. Speed control is achieved by varying the power delivered to the motor. How Do Variable Speed Furnaces Work? This Rheem furnace has an ECM motor and as far as I can tell there is a power factor choke wired in SERIES with the motors 120v power supply (cant attach image). Unlike ECM and PCS blower motors, variable-speed blower motors can automatically adjust their speed. When applied to the blower, the different taps will result in different speeds. You read that right. We will explain what a variable speed motor is, and how it is di Oct 2, 2019 · An ECM motor uses a permanent magnet rotor, eliminating the need for power to be fed to the rotor through brushes. Sep 14, 2021 · How does an EC motor work? The EC (electronically commutated) motor is a synchronous motor powered by an inverter with permanent magnets in an external rotor design. 4mH, 12. ECMs are always capable of running the motor at any speed, but often don't have a separate "analog input" to make it do so from an outside signal. That's why you only see ECMs in that type of equipment. Now it is important to note that all three motors work in similar ways. One of the major improvements for air conditioners and furnaces is something called an ECM motor, also referred to as a variable speed motor. 8-pole is 900 no-load (no slip). Why Your Engine Won't Rev Up Past 4000 RPM. It's a very small VFD, if you want to understand what the technology is. After the thermostat is satisfied, the Though they say it won’t work with anything other than a PSC motor. How They Work. . You usually find them on ECM motors, or anything with a VFD. By adjusting an EC motor’s speed to match the demand, the potential for energy savings continues to grow. Buying a furnace is a big purchase, and there are many options on the market to choose from. However, their main goal is to optimize the performance of the machines. An ECM motor is a DC three-phase motor with a permanent magnet rotor where the motor module controls the cycle rate. it's interesting that the motor would have mains voltages marked on it. 5 minutes. If the motor does not run, replace the motor module. A VFD might switch frequency mid operation, that's kind of the whole point after all. The stator is driven by electronic switches controlled by a microcontroller. Run a motor with no blower wheel on it and it'll heat up very quickly despite it doing very little work. One major benefit of a variable speed furnace blower motor is improved energy efficiency. Energy Efficiency Electronically commutated EC motor efficiency is often above 90%, allowing EC fans to consume up to 70% less energy, when compared to conventional fans. An ECM motor consists of several parts, including the stator, rotor, magnets, and control module. The width of the pulses here varies the average voltage the motor sees, just like a VFD. Sep 17, 2021 · How does an ECM Motor work? The motor torque and airflow should remain constant until the settings are programmed into the microprocessor and the control board dip switches are set in the area. The higher efficiency of the ECM will result in more work from the motor for an equivalent amount of power supplied to the motor as compared to the PSC. com/ECM’s new PCB Stato Oct 27, 2012 · Since posting the information on ECM motors and standard motors, I have had a number of request for information on the X-13 motors. regalbeloit. Apr 3, 2024 · How do ECM blower motors work? ECM blower motors blend the technology of brushless DC motors with integrated electronics for precise control, offering several advantages over traditional motors. At the heart of an ECM motor are the stationary stator, which creates a magnetic field, and the rotor, which rotates in response to this magnetic field. A, 60HZ. It is also known as a brushless DC motor or a synchronous DC motor. 6). 🎁 Sign up for a Free Trial at ️ https://greatcourses. It uses an electronic controller to switch DC currents to the motor windings producing magnetic fields that effectively rotate in space and which the permanent magnet rotor follows Nov 8, 2024 · 4. 5). The motor needs to be supplied with AC voltage and a DC voltage signal to operate. A brushless DC electric motor (BLDC), also known as an electronically commutated motor, is a synchronous motor using a direct current (DC) electric power supply. Most of the new universal ECMs will automatically figure out what direction to spin, some have an auto sizing feature as well. Titus provided GE with the requirements of the commercial market such as required motor voltages (the ECM motor was not available in 277V at the time) and market size and ECM motor potential. PSC motors can have multiple (but not variable) speeds, as they have multiple poles in the motor. An ECM motor is programmable and can maintain energy efficiency across a wide range of speeds while maintaining proper air flow through the system. For this reason, they are also called ECM blowers. Jan 2, 2025 · What is a Blower Motor and How Does It Work? At its core, the blower motor is the heart of your HVAC system’s airflow. These pumps provide a benefit way beyond the electrical Jun 18, 2008 · The X13 like a standard motor can't do that so as a filter gets dirty, for example, airflow goes down. They are DC motors that use a built-in inverter and magnet rotor, delivering better energy efficiency than furnaces with AC motors. Unlike traditional motors, ECMs use electronic commutation instead of mechanical brushes, which results in higher efficiency and lower maintenance requirements. The furnace is a Rheem R96VA - variable speed What is its purpose in this circuit and how does it work in this application? In this HVAC Training Video, I Show How Several ECM Multi-Speed Fan Motors Work and How to Troubleshoot Them to Determine the Problem. We already talked about the ECM's specific tasks, but that simplifies the process a bit too much. So, the frequency delivered to the motor is Oct 12, 2023 · How Do Ecm Motors Work? ECM motors use a specialized control module that adjusts the motor’s speed and torque based on input from sensors. First introduced by GE in 1985, ECM motors are an energy-efficient alternative to basic PSC motors. Replacing vs. The motor then ramps up to 80%, where it stays for 7. Variable speed motors communicate with the control board, if the board doesn’t see the motor it won’t operate the furnace. Variable-Speed Blower Motors. Variable speed blowers offer several advantages thanks to their electronically commutated motor (ECM) or variable speed motor, which lowers the total electricity consumption of a furnace or AC unit and helps maintain adequate airflow throughout the system. And it also runs very quietly. The artificial intelligence system of an ECM motor contains a microprocessor, which is the key component of what makes them able to provide higher efficiency. The Evergreen IM motor does not require a run capacitor. Located in the air handler or furnace, this motor drives the fan that pushes cooled or heated air through your ductwork and into your living spaces. If the motor starts, the fault is in the harness. In this video we cover Variable Speed Constant Airflow ECM Technology and how it relates to HVAC systems. com An electronically commutated motor (ECM) uses a microprocessor controller that sequentially energizes/de-energizes each winding of the stator with power to generate an electrical current. I don’t want to get too far into the weeds here. There are likely to be position sensors built into the motor which provide feedback to the controller as well. This is the most common frame size for indoor blower motors. By ramping up gradually and running longer at a lower speed, the variable speed system is able to remove more moisture from indoor air. Instead, they use a microprocessor to control the motor’s speed and direction. What WILL shift is the motor’s rpm. These motors have the ability to adjust their speed, as opposed to traditional furnace motors that only run at a single, fixed speed. However, you can learn the mechanism of action of EC motors for the CNC machines and relevant apparatus. Because EC motors have no brushes, they do not Electronically commutated motors (ECM) revolutionized the motor market when they hit the shelf in 1987. ECMs with permanent magnet technology gave applications greater control over the output and performance of their motors. We highly recommend watching this video as part of your Variable Speed Zebra™ introduction. Stator coils are fixed into place on the rotor, which is a permanent magnet. iunb firgu eoxatxr jqp pug jsemrm wgrg aaxcs nqyau nhcb