Ecm by regal beloit, ge commercial motors by regal. After the switch has been closed by the lanyard, the ecm has one second to find and accept the code in the lanyard. Put 24 volts to pins 12 and 15 and 24 volt common to pins 1 and 3 at the motor fig. Yamaha f115 115a 115b 115c 115d, f115 115a 115b 115c 115d owners manual en. Troubleshooting premium ecm motors can be difficult without the proper information. Furnaces for your home rheem manufacturing company. In marginal systems with higherthandesign static pressures for example a. A brushless dc electric motor bldc motor or bl motor, also known as electronically commutated motor ecm or ec motor and synchronous dc motors, are synchronous motors powered by direct current dc electricity via an inverter or switching power supply which produces electricity in the form of alternating current ac to drive each phase of the motor via a closed loop controller. Tesp system the motor still may be able to maintain airflow close to design. This book starts at the beginning with a detailed outline of ecm theory, and. This connector provides connection for ecm speed common pin 1, speed output pin 2, blower enable pin 4. The electronics in the end bell energize the windings one after the other. Important this document contains a wiring diagram and service information.
Defective sensors or actuators connected to the ecm. Before replacing the ecm, find the cause of failure for the original unit. Defective sensors or actuators connected to the ecm might damage the replacement unit. Cat workshop pdf manuals are in demand in all countries in the world and we have provided cat pdf files to more than 50 countries. Ecm electronically commutated motor technology is based on a brushless dc permanent magnet design that is inherently more efficient than the shadedpole and permanentsplitcapacitor psc motors commonly found in air handlers, furnaces, heat pumps, air conditioners and refrigeration applications throughout the hvacr industry. Connect pins 1 and 3 to the common side of the 24 volt transformer fig. Electrical control panel wiring diagram pdf download. The model was officially presented on october 12, 2006 in south korea. The control controls a multiple speed ecm motor through the 6pin p3 connector.
Fan motor is changing speeds up and down and the fan thermostat is not switching back and forth. If the motor runs the problem is in the low voltage thermostat wire. Called tech support and told them about the old motor. Ecm is the initials for electronically commutated motor. Motordata is an interactive information and reference data system on automotive diagnostics and repair. Advanced programming software reduces development and testing. According to ge, an innovator in ecm technology, the wide range of the ecm motor, high efficiency, and programmability gives it a virtually unlimited range of performance characteristics. One ribx current sensor was used to monitor when the ecm began to spin. Mercury outboard service manual free download pdf boat. When a furnace or air handler with an ecm is installed on a good duct, coil, and filtration system with static pressures within proper design parameters, it can perform flawlessly.
However, they are also well suited to replaceupgrade psc motors in commercial applications such as vav and air handlers with hot andor cold water coils, ac or heat pump. Yamaha f115a 115y, fl115a, lf115y service manual en. Take the wifi programmer with you to the next job, and the next job. Adjust output of motor in the app until desired airflow or temp delta is achieved 5. It should be less than the full load rating stamped on the nameplate. The motor itself has 3 identical windings, somewhat like 3 phase. Cat manual download caterpillar cat manual pdf download. Ribx series current sensors and ecms functional devices. About the company in 1987 general electric introduced ecm technology to the residential hvac.
If the motor does not run, remove the 16 pin plug from the ifc board. The ecm motor construction and troubleshoot youtube. The motor controlserves as the brains of the device, where singlephase 1o 120, 240, 277, or 460v ac 60hz power is connected. Remove these two bolts from the motor and control assembly while holding the motor in a way that will prevent the motor or control from falling when the bolts are removed. Remove the load from the motor and inspect the amp draw of the motor unloaded. Use motors only in the applications that they are designed for. Of course, the increasing popularity of the ecm motor has led to a number of questions from technicians on how to service and troubleshoot ecm driven systems. Connectors are keyed to resist the cables being inserted.
Buell lightning xb9s service repair manual motor era. Smith and jones electric motors wiring diagram download. Salamanca trucks modulos ecm a diesel home facebook. The delay of the filter can be adjusted in four different steps. Welcome to enertech university, online training by enertech. The ecm motor gray furnaceman furnace troubleshoot and repair. For instance the costeffective synchronous reluctance motor synrm offers the same efficiencies as ecms but without the aforementioned issues.
The 120v ac or 240v ac singlephase power is supplied through the 5pin connector to the motor at all times, even if there is no demand for airflow see figure 2. Ecm service guide gray cooling man air conditioning repair. Operation the variablespeed ecm is a dualvoltage motor. When its necessary to disconnect the power from the hvac system, its always a good practice to verify that voltage has been disconnected, by using a voltmeter. Check resistance between motor windings l1l2, l1l3 and l2l3. Ecu professional training electronic repair company. Dodge nitro service repair manual dodge nitro pdf downloads. Ecm motor troubleshooting part 2 york central tech talk. The rescue ecotech motor is designated for continous, airover duty, as such, the motor must be mounted in. Dont automatically assume the ecm motor has failed. You could speedily download this ecm motor troubleshooting guide. This power is what operates the internal electronics and drives the motor. Sep 21, 2012 if the motor starts with the tecmate the system malfunction is not caused by an ecm module or motor problem. Premium ecm motor troubleshooting guide york technical support.
The motor will be locked out until the cause has been resolved, and the power cycled. Motor era has the best selection of service repair manuals for your 2007 mazda 3 download your manual now. If the motor does not run, unplug the 16 pin wiring harness from the motor fig. The ecm then searches for the computer chip inside the lanyard and determines if it is a code that has been programmed to the ecm. Motordata automotive diagnostics and repair database. Ec motor system is the solution to meet the increasing demand for electrically commutated motors ecm in modern hac and ventilation systems. Connect the wifi programmer in series with motors existing connections 2. You could purchase lead ecm motor troubleshooting guide or acquire it as soon as feasible. Electronically commutated motor reference design for hvac blowers with.
Gm engine control module ecm installation instructions. Ecm motor troubleshooting part 3 york central tech talk. They told me they had had a few problems with loose connections in the motor plug. Goodman gmec96 service instructions manual pdf download. Cat parts manual pdf the cat pdf parts manual has exploded views of all serviced parts on the equipment.
View and download goodman gmec96 service instructions manual online. This video is designed to help technicians troubleshoot an ecm motor if a failed motor is suspec. Reference part number listed in chart to locate specific motor information page number. This connector provides connection for ecm speed common pin 1, speed output pin 2, blower enable pin 4, cool enable pin 5 and r output pin 6. An electronically commutated motor ecm is also known as a brushless dc motor and is driven by a specially programmed microcontroller that alternates the dc voltage signal to spin the motor. Fan will not change speeds or is running at the wrong speed. Need help troubleshooting ecm motor hvac pro forums. The diagnosis of ecm and x motors is actually pretty easy if you do a bit of reading and take a practical process of elimination approach. Trane huv installation, operation and maintenance manual pdf. A comprehensive study and resource manual that serves as a fundamental building. The process of disassembling and assembling of all components is described in details in every cat pdf repair manual. Ecm motor control connector 16 wires for programming 4 wires for basic control. Dec 12, 2018 if the motor checks out ok and the module is receiving inputs but the motor still isnt running then it is the module that needs to be replaced.
Ecm control the control controls a multiple speed ecm motor through the 6pin p3 connector. These service procedures will work on ecm2tm motors and their motor. Harley davidson service manuals free pdf for sportster 883 1200, dyna, v rod, softail, touring. Abb drives and motors 30 top tips to tackle hvac challenges. The universal zebra system uz1 is a collection of tools designed to assist technicians with diagnosing electronically commutated motor ecm problems. Multiple ecm motors by multiple manufacturers are entering the hvacr marketplace and being adopted by most equipment makers today. When installing pumps or motors, always align coupling halves as closely as possible, within 0.
It is our hope that this guide will provide a simple and accurate process for troubleshooting all of our motors. About the company in 1987 general electric introduced ecm technology to the residential hvac industry. With a wide range of control options, voltages and mechanical configurations. Electronically commutated motor ecm is also known as a brushless dc motor and is driven by a. This workshop service repair manual pdf download for the ecm 555 diagnostics mercury marine mercruiser has been prepared as an aid to improve the quality of repairs by giving the serviceman an accurate understanding of the product and by showing him the correct way to perform repairs and make judgements. Make sure you go through the diagnostic steps completely before replacing the motor. The ignition must be off when removing or installing the ecm connectors. Diagram ecm motor wiring diagram full version hd quality. The logic in the ecm was originally programmed as follows.
Troubleshooting ecm motors variable speed or constant cfm. In chart 01 the example plot, the ecm unit was measured to have a standby current draw of 0. This reacts with the permanent magnet in the rotor to produce the rotation. About the company in 1987 general electric introduced ecm technology to. The ecm motor gray furnaceman furnace troubleshoot and. These motor and blowers are used in the air moving, residential, and commercial hvac industries, providing unmatched performance.
It last 8 years before a fused trace on the control module and two drivers burnt. If you ally habit such a referred ecm motor troubleshooting guide ebook that will come up with the money for you worth, get the agreed best seller from us. Ecm service guide service tools the dealer tool box. Tested old motor windings just for the hell of it before i installed the new motor. Verify that the motor is getting enough air for proper cooling. Depending on the style of ecm, the motor control may be a separate component apart from the motor or it may be integrated into the motor shell see figure 2. Disconnect pl and plug it into the ecm motor simulator 3. Salamanca trucks modulos ecm a diesel, tlaquepaque. This manual will show you how to setup, program and troubleshoot ecm motors.
If the motor does not run, replace the motor module. The good, the bad and the ugly contracting business. The following steps shall be followed for each appliance connected to the. Icm 1 to check for motor operation use jumper as follows.
Went ahead and installed new motor and unit ran fine. In this video we cover genteq constant torque ecm troubleshooting, including diagnostics and motor replacements. When using flexible couplings, follow the manufacturers recommendations or allow 2 to 116 inch clearance between the coupling halves. Cat pdf service manuals the cat pdf service manual contains information on how the major operating systems work, testing, adjusting and troubleshooting guides, as well as disassembly and assembly procedures for your caterpillar.
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