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53

Indoor Motor

Final Installation Checks

Check all wiring and connections, especially 

those removed while servicing.

Clear all condensate drain and traps.
Check and plug leaks in return ducts and 

equipment cabinet. 
Verify that the system is running quietly and 

smoothly, producing proper air flow in all modes 

(heating, cooling, and continuous fan) and all 

stages (if applicable).
Return all thermostat settings to the customer’s 

preference.
If any evidence of moisture, then correct the 

issue. 
If the area is subject to high amounts of 

lightning strikes, then use of additional transient 

protection may be helpful.

Ensure the system is set up as follows:

Содержание genteq ECM

Страница 1: ...ECM SERVICE GUIDE ECM SERVICE GUIDE...

Страница 2: ...reconnecting Disconnect AC power from the system and make sure the blower wheel or fan blade has come to a complete stop before servicing the motor Do not operate motor without blower wheel or fan bla...

Страница 3: ...ECM Service Guide HVAC SystemTroubleshooting Basics TechTips Motor Identification Chart 1 3 4 6 7 VariableSpeedMotors Premium ECM Motor Diagnostics X13 Endura ProMotors Standard ECM Motor Diagnostics...

Страница 4: ...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 indu...

Страница 5: ...brands they own such as Marathon Lincoln Leeson and Fasco Regal is a leading manufacturer of mechanical and electrical motion control and power generation products serving markets throughout the worl...

Страница 6: ...lacement Using the ECM Service Guide Begin with the HVAC SystemTroubleshooting Basics section on the opposite page If the answer to the problem is not solved there read all of theTechTips on page 6 Af...

Страница 7: ...confirm proper demands heat or cool especially on multi stage systems Use the Sequence of Operation charts and the ThermostatWiring Diagrams found in these guides to confirm proper wiring and operatio...

Страница 8: ...there are no limits rollouts or safeties tripped Also check for any fault codes present on the furnace air handler or outdoor unit control boards If fault codes are present follow the manufacturer s r...

Страница 9: ...ation voltage to the motor Always pull on the connector and not the wires Most connectors are also keyed Reconnecting a connector the wrong way could damage the motor When checking any plug connector...

Страница 10: ...reen Motors have a heat sink here OEM Constant Speed Outdoor Fan Motor Shaft down application rounded end of control up Shaft up application remote located control Cover plate over open end of control...

Страница 11: ...5 5 or less wires in the 16 pin connector Painted steel motor control Unpainted cast aluminum motor control Square motor control NOTE Early models do not have indentification stickers NOTE ECM 1 0 2...

Страница 12: ...to the motor This is to allow the capacitors to dissipate for safety WA R N I N G AlwaysdisconnectthepowerfromtheHVACsystembefore removing or replacing connectors servicing the motor removingthehighv...

Страница 13: ...TECINspect Service Tool TECINspect Usage Chart Troubleshooting with theTECINspect ServiceTool Module Replacement ECM Control Module ECM Motor Module Variable Speed Models 2 0 2 3 2 5 Eon 3 0 Premium E...

Страница 14: ...ge in airflow between continuous fan speed and low stages of operation may be very slight depending on the size of the system If the system is operating normally in each stage then there is no problem...

Страница 15: ...r has proper high voltage and ground at the 5 pin connector go to the Troubleshooting with theTECINspect ServiceTool section on page 16 If the 2 5 motor has proper high voltage and ground at the 5 pin...

Страница 16: ...ge within plus or minus 10 of the nominal 120VAC or 240VAC is acceptable If the 2 0 2 3 Eon 3 0 motor has proper high voltage and ground at the 5 pin connector go to the Troubleshooting with theTECINs...

Страница 17: ...EUTRAL 120VAC LINE 1 Figure 1 Models 2 0 2 3 2 5 Eon 3 0 120VAC SYSTEM Figure 2 240VAC SYSTEM Always disconnect the power from the system before removing the high voltage plug and before reconnecting...

Страница 18: ...rational Growth TECMate XL TECMate PRO TECINspect Applicable Motors 2 0 2 3 EON 3 0 Model 3 0 diagnostics require a 16 4 pin adaptor1 2 Model 3 0 diagnostics may require a 16 4 pin adaptor1 TECINspect...

Страница 19: ...nector locking tab easier Remove the 16 pin connector from the motor and connect the 16 pin connector from the TECINspect ServiceTool to the motor Reconnect the 5 pin AC power connector On Model 3 0 r...

Страница 20: ...Reconnect the AC power to the system The green LED light on theTECINspect ServiceTool should be on when connected properly to 24VAC If the green LED light is not on there is no power to theTECINspect...

Страница 21: ...or and the manufacturer s control board Perform a continuity check on each individual wire of the harness Some manufacturers use a different style connector on the control board side of the harness Fo...

Страница 22: ...ly from the HVAC system if needed ONLY after the system AC power has been off for 5 minutes remove the two 2 hex head screws from the back of the control Unplug the 3 pin connector from the inside of...

Страница 23: ...painted part of the end shield or x brace on model Eon 3 0 The motor passes the test if the meter indicates greater than 100k ohms MOTOR CONNECTOR 3 PIN 16 PIN 5 PIN CONNECTORS FROM MOTOR CIRCUIT BOAR...

Страница 24: ...he 3 pin plug is lead 1 Resistance values should be less than 20 ohms and each of the three values should be the same plus or minus 10 If the measured resistance is outside of these parameters the mot...

Страница 25: ...odel replacements some motors may need to be rotated in their mount to orient the plug connectors properly See below for model specific notes and or follow any OEM instructions included with the new c...

Страница 26: ...r 4 pin communication connector and the 5 pin connector back into the motor The connectors are keyed Observe proper orientation Be certain to form a drip loop so that water cannot enter the motor by d...

Страница 27: ...connectors in the control are facing down or at least between the 4 and 8 o clock position in the blower housing as it will mount into the HVAC system see figure 7 page 23 Center the blower wheel in t...

Страница 28: ...m before removing or replacing connectors servicing the motor removing the high voltage plug and before reconnecting Disconnect AC power from the system and make sure the blower wheel has come to a co...

Страница 29: ...anufacturer s charts Ensure the airflow settings are correct for the installed system using the manufacturer s charts If the system is operating normally in each mode there is no problem Remove the fi...

Страница 30: ...R IS NOT RUNNING Check for proper high voltage and ground at the L G N connections at the motor see Figure 8 on the next page Correct any voltage issues before proceeding to the next step The X13 Endu...

Страница 31: ...OUND 115VAC LINE 1 C L G N 1 2 3 4 5 230VAC MOTOR 115VAC LINE 1 115VAC LINE 2 C L G N 1 2 3 4 5 GROUND 460VAC MOTOR GROUND 277VAC LINE 1 277VAC LINE 2 C L G N 1 2 3 4 5 277VAC MOTOR GROUND 277VAC LINE...

Страница 32: ...the voltage identified from the manufacturer s literature see Figures 9 and 10 on the next page If the low voltage communication is not present check the demand from the thermostat Also check the out...

Страница 33: ...30 AC VOLTAGE CONTROL INPUTS AC VOLTS V COM 24 VAC C L G N 1 2 3 4 5 DC VOLTAGE CONTROL INPUTS DC VOLTS V COM 9 23 VAC C L G N 1 2 3 4 5 Figure 9 Figure 10 30...

Страница 34: ...if needed ONLY after the system AC power has been off for 5 minutes remove the two 2 hex head screws from back of the control Unplug the 3 pin connector from the inside of the control by squeezing th...

Страница 35: ...of the three motor leads to the unpainted part of the x brace The motor passes the test if the meter indicates greater than 100k ohms MOTOR CONNECTOR 3 PIN 4 PIN 5 PIN CONNECTORS FROM MOTOR CIRCUIT B...

Страница 36: ...he 3 pin plug is lead 1 Resistance values should be less than 20 ohms and each of the three values should be the same plus or minus 10 If the measured resistance is outside of these parameters the mot...

Страница 37: ...the motor was removed from Insert the 3 pin connector back into the new control module A slight click will be heard when inserted properly This connector is keyed for proper connection Attach the new...

Страница 38: ...35 ECM X13 Endura Pro 2 75 BELLYBAND KEEPOUTAREA RECOMMENDED BELLYBANDAREA DO NOT COVER VENTS DRIP LOOP DRIP LOOP Connection Orientation Between 4 and 8 o clock Figure 14 Figure 15 35...

Страница 39: ...onnectors in the control are facing down or at least between the 4 and 8 o clock position in the blower housing as it will mount into the HVAC system see figure 14 page 35 Center the blower wheel in t...

Страница 40: ...not be used on twinned systems and should not be used on belt drive systems There are two Evergreen Models Please make sure to use the appropriate troubleshooting information See the Motor ID chart o...

Страница 41: ...proper LineVoltage jumper is installed For 230VAC systems the yellow jumper should be installed For 115VAC systems the white jumper should be installed NOTE If the motor was powered with 230VAC while...

Страница 42: ...firmed Confirm there is a 115VAC demand on any one or all of the High Voltage SIGNAL connections The High Voltage SIGNAL connections of the motor should only be connected to the HVAC Systems 115VAC fa...

Страница 43: ...peration A Low Voltage SIGNAL demand from the HVAC Systems thermostat connection alone will not operate the motor The motor will turn on when it receives its High Voltage SIGNAL demand from the HVAC S...

Страница 44: ...en the selected LowVoltage SIGNAL speed tap and the BLUE Common tap on the motor see schematic on page 40 If more or less airflow is required change this connection to a higher or lower speed tap If t...

Страница 45: ...r To increase or decrease the Hp selection see the chart below HV1 HV2 1 2 1 3 Hp operation 1 2 Hp Motor HV1 1 3 1 4 Hp operation HV2 1 4 1 5 Hp operation HV1 HV2 3 4 Hp operation 1 Hp Motor HV1 3 4 1...

Страница 46: ...SIGNAL connections are connected together with all the 115VAC fan outputs from the HVAC Systems controls to communicate to the motor when to turn on and at what horse power to operate at IF THE MOTOR...

Страница 47: ...he problem check theTotal External Static Pressure TESP If theTESP is above 8 there is an issue with the ductwork or filter sizing that must be corrected After correcting one or more airflow restricti...

Страница 48: ...one checkmark falls in each Evergreen sizing use the larger motor 1 6 1 2 Hp IMPORTANT NOTE There must be proper voltage at the High Voltage POWER and the Low Voltage Speed Tap connections for the mot...

Страница 49: ...ps Green Orange Brown White orYellow and the Blue lead 24VAC common connection If there is not proper voltage at one or all of these leads during proper system demand correct the problem before the mo...

Страница 50: ...grilles Replace filters with proper size according to manufacturer specs Aftermarket filters may need to be larger than the original specs If this does not correct the problem go to step 2 Step 2 Conf...

Страница 51: ...st possible airflow and proceed to Step 3 Step 3 Check the system sTotal External Static Pressure Total ESP If the total ESP is higher than the system manufacturer recommends the problem is most likel...

Страница 52: ...om the system and make sure the fan blade has come to a complete stop before servicing the motor Do not operate motor without fan blade attached Such operation will cause the motor speed to oscillate...

Страница 53: ...ly following the manufacturer s recommendations This motor will not compensate for lack of airflow through dirty coils Confirm all fan blades are shaped the same in good condition and not rubbing on t...

Страница 54: ...f the motor IS NOT receiving any communication troubleshoot the communication issue using the manufacturer s troubleshooting guides The control board in the outdoor unit will need the proper demand ca...

Страница 55: ...TED RESULTS Always mount the replacement motor and control if mounted separately according to the manufacturer s specifications using all required hardware to reduce vibration Make sure all wires are...

Страница 56: ...at the system is running quietly and smoothly producing proper air flow in all modes heating cooling and continuous fan and all stages if applicable Return all thermostat settings to the customer s pr...

Страница 57: ...modes and stages if applicable Check the refrigerant level only after confirming proper indoor airflow as well Bent coil fins restrict airflow correct if possible without damaging the coil or other fi...

Страница 58: ...for the advice given or results obtained all such advice and reviews being given and accepted are at the customer s risk For a copy of our StandardTerms and Conditions of Sale Limited Warranty and Li...

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