Goodman Mfg RT6100004R13 manual 16C Checking ECM Motor Windings, 16D ECM CFM Adjustments

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SERVICING

1}Lines 1 and 2 will be connected for 12OVAC Power Connector

2applications only

3Gnd

4AC Line Connection

5AC Line Connection

	OUT -				8	16		OUT +
ADJUST +/-
					7		15	G (FAN)
		Y1			6	14		Y/Y2

					5		13	EM Ht/W2
		COOL
								24 Vac (R)
					4		12
	DELAY
					3	11		HEAT
COMMON2
		W/W1						BK/PWM (SPEED)
					2		10
COMMON1								O (REV VALVE)
					1	9

16-PIN ECM HARNESS CONNECTOR

If you do not read voltage and continuity as described, the problem is in the control or interface board, but not the motor. If you register voltage as described , the ECM power head is defective and must be replaced.

S-16C CHECKING ECM MOTOR WINDINGS

1.Disconnect the 5-pin and the 16-pin connectors from the ECM power head.

2.Remove the 2 screws securing the ECM power head and separate it from the motor.

3.Disconnect the 3-pin motor connector from the power head and lay it aside.

4.Using an ohmmeter, check the motor windings for continuity to ground (pins to motor shell). If the ohmme- ter indicates continuity to ground, the motor is defective and must be replaced.

5.Using an ohmmeter, check the windings for continuity (pin to pin). If no continuity is indicated, the thermal limit (over load) device may be open. Allow motor to cool and retest.

3-pin motor connector

16-pin connector

5-pin connector

S-16D ECM CFM ADJUSTMENTS

MBE MOTOR

This section references the operation characteristics of the MBE model motor only. The ECM control board is factory set with the dipswitch #4 in the “ON” position and all other dipswitches are factory set in the “OFF” position. When MBE is used with 2-stage cooling units, dipswitch #4 should be in the "OFF" position.

For most applications, the settings are to be changed according to the electric heat size and the outdoor unit selection.

The MBE product uses a General Electric ECMTM motor. This motor provides many features not available on the traditional PSC motor. These features include:

•Improved Efficiency

•Constant CFM

•Soft Start and Stop

•Improved Humidity Control

MOTOR SPEED ADJUSTMENT

Each ECM™ blower motor has been preprogrammed for operation at 4 distinct airflow levels when operating in Cooling/Heat Pump mode or Electric Heat mode. These 4 distinct levels may also be adjusted slightly lower or higher if desired. The adjustment between levels and the trim adjustments are made by changing the dipswitch(s) either to an "OFF" or "ON" position.

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Contents Service Instructions Table of Contents Important InformationSafe Refrigerant Handling Product Identification Split System Air Conditioners R-22Split System Air Conditioners R-22 Split System Heat Pumps R-22 Product Identification Single Piece Air Handlers Single Piece Air Handlers MBR/MBE Air Handlers 036 036 120 3642 1824 Accessories ASC01CPKF24 CPKF36 CPKF42 CPKF48 CPKF60 CPKF61 Expansion Valve Kits FSK01A Coil Accessories Product Design Condensing UnitProduct Design System Operation HeatingCooling Cycle System Operation Indoor Coil Outdoor Thermostatic Expansion Valve AFE18-60A Control Board DescriptionTroubleshooting Chart COOLING/HP Analysis ChartServicing Table of Contents 3A Thermostat and Wiring Checking Voltage Checking WiringChecking THERMOSTAT, WIRING, and Anticipator Servicing3B Cooling Anticipator 3C Heating AnticipatorChecking Transformer Control Circuit Checking Time Delay RelayTesting Coil Circuit Checking Cycle ProtectorChecking Contactor AND/OR Relays Testing Compressor ContactorTesting FAN Relay Checking Contactor ContactsCopeland Comfort Alert Diagnostics Applies to ASC13 & ASH13Diagnostics Table Red TripChecking Loss of Charge Protector Hard Start KIT WiringTesting Capacitor Resistance Checking Capacitor16A Checking FAN and Blower Motor Windings PSC Motors Testing Capacitance15B Capacitance Check 16B Checking FAN and Blower Motor ECM Motors16D ECM CFM Adjustments 16C Checking ECM Motor WindingsChart on Next Chart from Previous Itc h 17A Resistance Test 16E Checking GE X13TM MotorsChecking Compressor GE X13TM Motor Connections17D Operation Test Testing Compressor Windings17B Ground Test Compressor Ground TestTesting Defrost Thermostat Testing Crankcase Heater Optional ItemTesting Defrost Control Checking Reversing Valve and SolenoidAR*F & MBR With Single Stage Condensers 40 AR*F & MBR Electronic Blowers Time Delay RelaySequence of Operation AR*F & MBR With Single Stage Heat PumpsAEP* & MBE Electronic Blower Time Delay Relay 41 AEP* & MBE with Single Stage CON Densers41A AEP* & MBE with Single Stage Heat Pumps Electric Heater Optional Item Temperature Rise F @ CFM 61A Checking Heater Limit ControlsChecking Heater Elements Leak Testing Nitrogen or NITROGEN-TRACED61B Checking Heater Fuse Link Optional Electric Heaters Refrigeration Repair PracticeEvacuation EvacuationCharging Checking Compressor Efficiency An inaccurately charged system will cause future prob- lems105B Thermostatic Expansion Valve Superheat OverfeedingUnderfeeding Thermostatic Expansion ValvesChecking Subcooling Checking Expansion Valve OperationNON-CONDENSABLES Overcharge of RefrigerantChecking Restricted Liquid Line Compressor BurnoutSuction Line Drier Clean-Up Method Refrigerant PipingInstallation Requirements Reversing Valve Replacement System ChargingTotal External Static AIR Handler External StaticCoil Static Pressure Drop Static Pressure DropALL Fuel System Control Board AFE18-60A Accessories Wiring DiagramsALL Fuel System AFE18-60A Control Board 10kw and Below, One Stage Electric Heat OT/EHR18-60 #2 GRD PLM PLF XFMR-R XFMR-C After Installing Optional Heat KIT, Mark AN X Provided Above HKR Heat Kit GRD PLM PLF Accessories Wiring Diagrams