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4 Table of Contents The ECM Textbook Constant Airflow ECM History of ECMConstant Airflow ECMConstant Torque ECMConstant Speed ECMThis power point contains images that are not in the printed version. This was done to keep the size of the printed text short and improve the concepts that are being taught in the classroom.
6 Constant Speed ECM S ECM Constant Speed (OEM) Outdoor Fan ECM
7 Constant Speed ECM Constant Speed (OEM) Outdoor Fan ECM Page 1Constant Speed (OEM) Outdoor Fan ECMGenteq introduced the Constant Speed outdoor fan motor in 2000Two piece motor/control designInstalled, serviced and replaced as one componentOut of production 1422008 Current production 142RConstant SpeedOEM programmingOptimize more efficient quieter fan operationECM Technology – PSC simplicityHigher efficiency & OEM programmability
8 Constant Speed ECM Operation Page 1 208-230vac continuous line voltage A/C or DC communicationConstant SpeedHardwired at motorNo plugs at the motorWire colors OEM specificModel 1421/3 horse power onlyModel 142R1/5, 1/3, 1/2, 3/4 horse powerImproved start routine
9 Constant Speed ECM Operation Page 2 208-230vac continuous line voltage Operates internal electronics and drives the motorA/C or DC communicationOEM specificSpeed per demand by OEM program
10 Constant Speed ECM Application Page 2 High SEER A/C and Heat Pump Single and Two stage applicationsSplit and Package unitsShaft up, shaft down, remotely located controlShaft Up DesignShaft Down Design
11 Constant Speed ECM Installation/Set-up Troubleshooting Page 3 Typically no set upSee OEM manualsTroubleshootingModel 142 and 142RLine voltage continuously poweredVoltage within ±10% acceptableCommunication voltage by demandOEM specificUse OEM manual and/or schematic to confirm voltage
13 Constant Speed ECM Repair Page 4RepairPrograms are specific to HVAC OEM, model and size unit142R is available only as a single componentReplacement parts must come from HVAC OEMNo universal replacement parts, NOT FIELD REPARIABLEUsing the wrong motor voids all warrantiesMay produce unexpected resultsFollow all instructions with replacement parts142R is backward compatible with model 142
14 Constant Speed ECM Conclusion Page 4ConclusionGenteq 142R motor built with 6 generations of ECM technologyReliability improvements include:Fully encapsulated electronicsImproved EMI filterSpeed limiting6KVADurable ball bearingsProven reliability with proper installation, set-up, and annual maintenance
15 Constant Speed ECM www.theDealerToolbox.com Page 4Genteq product information & training videosECM Service GuideFree to downloadLatest version updated in 2009Troubleshooting Guide for all Genteq ECMConstant Airflow (Variable Speed) indoor blower motorsIncluding use of TECMate PRO and TECMate XLConstant Torque X13 and Evergreen indoor blower motorsConstant Speed 142 and 142R outdoor fan motors
18 Constant Speed ECM Constant Speed Commercial Refrigeration Motors Page 5Constant Speed Commercial Refrigeration Motors1997 – General Electric introduces ECM products for commercial refrigeration applications.2004 – Regal Beloit acquires ECM division from General Electric and continues to build commercial refrigeration products under the name GE ECM by REGAL BELOIT.2007 – Regal Beloit acquires Morrill Motors. Morrill has been producing commercial refrigeration motors in an ECM design called SSC since 2003.2010 – Regal Beloit rebrands all commercial refrigeration products under Morrill MotorsHVAC/R curriculum
19 Constant Speed ECM Constant Speed Commercial Refrigeration Motors Page 5Constant Speed Commercial Refrigeration MotorsInitially designed for evaporator fan motorsNear continuous run time and low efficiencyCommonly used 25-30% efficient shaded poleBenefits of ECM technologyIncreased electrical efficiency, more than double shaded poleReduced waste heat on refrigeration loadECM applicationsEvaporator and condenser motors20 watt unit bearing up to fractional Hp 48 NEMA frameOEM and drop-in replacementHVAC/R curriculum
21 Constant Speed ECM Operation Page 5 Constant Speed Reduces effects of dirt load on motor performanceDecreases motor sizesHVAC/R curriculum
22 Constant Speed ECM ARKTIC SSC Page 6 Unit bearing motor Output rating 2-25 wattsSpeed rating RPMApplicationsReach in coolersBottle coolersDisplay casesVending machinesAvailable in complete fan/shroud assemblyMotor and control in one complete housingHVAC/R curriculum
30 Constant Speed ECM ARKTIC 59 Page 6 Ball bearing motor (3.3” dia.) Output rating 1/15th HpSpeed rating RPMApplicationsWalk in coolersWalk in freezersMotor and control built in separate housings bolted togetherAlso available in ICE seriesHVAC/R curriculum
38 Constant Speed ECM ARKTIC 142 Page 6 Ball bearing motor (NEMA 48 Frame)Available in 1/5, 1/3, 1/2, and 3/4 HpSpeed rating RPMApplicationsCondensing fanLarge walk in coolers and freezersMotor and control built in separate housings bolted togetherAlso available in ICE seriesLeft off editing on this slideHVAC/R curriculum
39 Constant Speed ECM ARKTIC Series Motors ICE Series Motors Page 6 Commonly used in single speed applicationsTwo and three speed options availableSimple 2-pin refrigeration connections to line voltageAvailable ¼’ fast on and bare wire stripSimplicity of shaded pole, energy savings of ECMICE Series MotorsFully programmablePWM and DSI communicationCompatible with automated controlsLeft off editing on this slideHVAC/R curriculum
41 Constant Speed ECM Form fit drop in replacement Page 7ConclusionMorrill Motors commercial refrigeration motors built with 10 years ECM technologyReliability improvements include:Form fit drop in replacementFully encapsulated electronicsImproved EMI filterSpeed limiting4KVADurable ball bearingsHVAC/R curriculum