Greenheck Fan 470656 manual Motor Over Amps

Page 47

Troubleshooting

Motor Over Amps

Air volume too high?

No

Actual static pressure

lower than design?

No

Blower rotation correct?

Yes

Motor voltage correct?

Yes

Motor horsepower too low?

No

Shorted windings in motor?

Yes

Everything is working

properly, consult factory.

Yes

Yes

No

No

Yes

Yes

Adjust drives or increase external static pressure as needed.

(Reference Blower Start-Up Step #5)

Adjust drives to reduce blower RPM.

(Reference Blower Start-Up Step #5)

Reverse blower rotation.

(Reference Blower Start-Up Step #2)

Provide proper power supply.

(Reference Blower Start-Up Step #1)

Resize motor.

Replace motor.

®

Model IG / IGX Make-Up Air 47

Image 47

Contents General Safety Information Installation, Operation and Maintenance ManualStorage Inspection and Maintenance during StorageReceiving HandlingClearance to Combustibles / Service Clearances Table of ContentsInstallation of Arrangement DB / HZ Installation of Indoor UnitAssemble and Attach Weatherhood Installation of Roof Mounted Unit Arrangement DBCInstall Combination Curb Adaptor Install Curb/Equipment SupportsInstall Supply Unit Install Exhaust FanInstall Exhaust Options Installation of Venting for Outdoor Units Installation of Evaporative Cooling Module optionalSeparated Combustion Concentric Venting Installation of Venting for Indoor UnitsVenting Methods Standard Indoor VentingVent Pipe Diameter Installation of Standard Indoor VentingInstalling Exhaust Vent Pipe Concentric Venting Horizontal Installation of Concentric Venting GeneralConcentric Venting Vertical Intake END Seal Wall Openings Installation of Two Pipe Venting HorizontalSeal Roof Penetration Installation of Two Pipe Venting VerticalInstallation Electrical Wiring Install DDC Interface Optional Wire the Evaporative Cooler optionalInstall Economizer Sensors optional Install Discharge Air Sensor optionalConnect the Supply Gas Line Installation of Gas PipingInstall Additional Regulator if Required Determine the Supply Gas RequirementsCheck/Adjust Water Level Installation Evaporative Cooler Piping optionalInstall the Water Supply Line Install the Drain LineWater Wizard Valves When provided by manufacturer Installation of Water WizardTM optionalInstall Normally Closed Supply Line/ Solenoid Install Normally Open Drain Line/ SolenoidWire the Temperature Sensor Installation of Water WizardInstallation Direct Expansion DX Coil Piping optional Wire the SolenoidsEvacuate and Charge the Coil Install Suction LineMount the Remote Sensing Bulb By Others Check Coil Piping for LeaksInstallation of Building Pressure Control optional Installation of Chilled Water Coil Piping optionalStart-Up Blower Set-up Optional Components Send Unit to High Fire Reset the Temperature SettingStart-Up Furnaces all units Start-Up Single Stage ControlCheck the Low Fire Manifold Pressure Start-Up 21 Staged ControlStart-Up 81 Staged Control Send Unit to Low FireAccess the Inlet Air Sensor Setting Access the Setpoints MenuAccess the Discharge Air Temperature Setting Edit the SettingAccess the Room Override Setting Start-Up 21 Electronic Modulation High Fire AdjustmentCheck the Low Fire Manifold Pressures Exit High Fire ModeStart-Up 41 Electronic Modulation Access the Setpoints Menu Set the Enthalpy Changeover Set Point optional Verify Sensor InstallationStart-Up Economizer optional Set Minimum Outside AirStart-Up Evaporative Cooling optional Start-Up Water Wizard optional Operation - Water Wizard optional Building Pressure Control External Signal a variableCheck Operation VAV Units optional Damper actuator may take a few Check Operation Recirculating Units optionalRecirculation Operation Building Pressure Control aExhaust Fan Contact S1 Manually Closed optional Sequence of Operation Staged SequenceSequence of Operation 21 Modulation Sequence Operation Modulation Staged Controller Discharge Air Temperature dtSOutside Air Temperature OAt Sequence of Operation Modulation SequenceLight Off Blinking Sequence of Operation 41 Electronic ModulationProgram Revision Number Optional Room Override ROtSequence of Operation Electronic Modulation Staging Control Sequence of Operation Sequence of Operation Staged ControlFollowing are the green LED codes of operation Operation and Errors Ignition ControllerOption EC-2 Outside Air Enthalpy Reference Option EC-1 Outside Air Temperature ReferenceOption EC-3 Differential Temperature Control Operation EconomizerBlower Does Not Operate TroubleshootingMotor Over Amps Too Much Airflow Insufficient AirflowExcessive Noise or Vibration Improper manifold pressure Single or 21 Stage Furnace Will Not LightModulating Furnace Will Not Light Heat transformer TR2 fault Ignition controllers IC# failed Staged Furnace Will Not Light Internal high limit tripped temperature above set point Water Blows through Evaporative Cooler Evaporative Cooler does not Operate Recirculating pumpWater Wizard Improper Water Supply Adjust the Manual Supply ValveAdjust the On Time Factor Wheels Maintenance RoutineBelt Drives Snow AccumulationEvaporative Coolers MotorsFilters Chilled Water CoilsMaintenance Fall Flushing Coils Reference Model IGX Venting Connection Location Reference Model IG Venting Connection LocationReference Model IG Single or 2 Stage Reference Model IG Staged Reference Model IG Modulation Modulating Reference Model IGX Blower Control Center Manifold Gas Pressure Test Port Staged Inch Gas Supply Manifold Gas Pressure Test Port Modulating Staged Performance Table Reference Performance TableStart-Up Checklist Reference Start-Up ChecklistWarranty Maintenance Log