Greenheck Fan 470656 manual Installation Electrical Wiring

Page 15

Installation - Electrical Wiring

IMPORTANT

Before connecting power to the unit, read and understand the following instructions and wiring diagrams. Complete wiring diagrams are attached on the inside of the control center door(s).

IMPORTANT

All wiring should be done in accordance with the latest edition of the National Electrical Code ANSI/ NFPA 70 and any local codes that may apply. In Canada, wiring should be done in accordance with the Canadian Electrical Code.

caution

If replacement wire is required, it must have a temperature rating of at least 105ºC, except for energy cut-off or sensor lead wire which must be rated to 150ºC.

IMPORTANT

The equipment must be properly grounded. Any wiring running through the unit in the airstream must be protected by metal conduit, metal clad cable or raceways.

danger

High voltage electrical input is needed for this equipment. This work should be performed by a qualified electrician.

caution

Any wiring deviations may result in personal injury or property damage. Manufacturer is not responsible for any damage to, or failure of the unit caused by incorrect final wiring.

IMPORTANT

Manufacturer’s standard control voltage is 24 VAC. Control wire resistance should not exceed 0.75 ohms (approximately 285 feet total length for 14 gauge wire; 455 feet total length for 12 gauge wire). If the resistance exceeds 0.75 ohms, an industrial-style, plug-in relay should be wired in place of the remote switch. The relay must be rated for at least 5 amps and have a 24 VAC coil. Failure to comply with these guidelines may cause motor starters to chatter or not pull in, resulting in contactor failures and/or motor failures.

®

1.Determine the Size of the Main Power Lines

The unit’s nameplate states the voltage and the unit’s total MCA. The main power lines to the unit should be sized accordingly. The nameplate is located on the outside of the unit on the control panel side.

Voltage, Hertz, Phase

VOLTS

 

 

HZ

 

 

PH

 

SUP HP

 

 

EXH HP

 

 

 

 

 

 

MCA

 

 

 

 

MOP

 

 

 

 

 

 

 

 

Unit’s Total MCA

Electrical Nameplate

2.Provide the Opening(s) for the Electrical Connections

Electrical openings vary by unit size and arrangement and are field-supplied.

3. Connect the Main Power

Connect the main power lines to the disconnect switch and main grounding lug(s). Torque field connections to 20 in.-lbs.

4. Wire the Optional Convenience Outlet

The convenience outlet requires a separate 115V power supply circuit. The circuit must include short circuit protection which may need to be supplied by others.

5. Wire the Optional Accessories

Reference the ladder diagram on the inside of the control center door for correct wiring of the following accessories:

• Selectra Stat

• Dirty Filter Indicator

• Room Override

• TSCP

• Blower Switch

• KSCP

• Heat Switch

• Economizer Activator

• Indicating Lights

• Room Stat

note

Wiring to the Selectra Stat or room override should be in separate conduit or run with shielded cable.

note

The TSCP and KSCP remote panels have number- to-number wiring.

Model IG / IGX Make-Up Air 15

Image 15
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 Exhaust Fan Install Exhaust OptionsInstall Supply Unit Installation of Venting for Outdoor Units Installation of Evaporative Cooling Module optionalSeparated Combustion Concentric Venting Installation of Venting for Indoor UnitsVenting Methods Standard Indoor VentingInstallation of Standard Indoor Venting Installing Exhaust Vent PipeVent Pipe Diameter 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 AdjustmentExit High Fire Mode Start-Up 41 Electronic ModulationCheck the Low Fire Manifold Pressures 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 External Signal a variable Check Operation VAV Units optionalBuilding Pressure Control 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 pumpAdjust the Manual Supply Valve Adjust the On Time FactorWater Wizard Improper Water Supply 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