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Greenheck Fan 470656 Wire the Evaporative Cooler optional, Install Economizer Sensors optional

Models: 470656

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6. Wire the Evaporative Cooler (optional)

6. Wire the Evaporative Cooler (optional)

Reference the ladder diagram on the inside of the control center door for correct wiring of the pump and the optional water valves.

note

Large evaporative coolers may require a separate power supply.

7. Install Economizer Sensors (optional)

All economizer options (EC) require an outdoor air temperature or enthalpy sensor to be field installed inside of the weatherhood and field wired to terminals SO+ and SO- on the economizer.

Economizer options EC-3 and EC-4 require an outdoor air temperature or enthalpy sensor to be field installed in the return air duct and field wired to terminals SR+ and SR- on the economizer.

The sensors are provided by the factory and ship with the unit.

8. Install Discharge Air Sensor (optional)

For units with 8:1, 16:1 or 24:1 staged turndown, install the discharge air sensor at least three duct diameters downstream of the heat exchanger. The discharge air sensor can be found in the unit’s control center.

9. Install DDC Interface (Optional)

Some units may use an external signal from a building management system to control the dampers and/or discharge air temperature. Reference the unit ladder diagram for the correct wiring.

16 Model IG / IGX Make-Up Air

®

Image 16

Greenheck Fan 470656 Wire the Evaporative Cooler optional, Install Economizer Sensors optional, Model IG / IGX Make-UpAir

Contents

General Safety Information FOR YOUR SAFETY2.Do not touch electrical switches If you smell gas 1.Open windowsInspection and Maintenance during Storage ReceivingHandling StorageTable of Contents Clearance to Combustibles / Service ClearancesIndirect Gas Fired Unit Installations InstallationInstallation of Indoor Unit Installation of Arrangement DB / HZ1. Install Hangers 2. Install UnitInstallation of Roof Mounted Unit Arrangement DBC 2. Install Combination Curb Adaptor3. Install Ductwork 1. Install Curb/Equipment Supports5. Install Exhaust Fan 6. Install Exhaust Options7. Install Supply Unit 4. Apply SealantInstallation of Venting for Outdoor Units 2.Install Stack Optional1. Locate Equipment Supports 2. Apply SealantInstallation of Venting for Indoor Units Venting MethodsInstalling Exhaust Vent Pipe Installation of Standard Indoor VentingVent Pipe Diameter Installation of Concentric Venting General Concentric Venting – HorizontalVent Connection Diameter Vent Length3. Install Exhaust Pipe 4. Install Combustion Air Pipe5. Install CVA Assembly 6. Attach CVA Assembly to Unit3. Install Exhaust Pipe 4. Install Combustion Air Pipe5. Install CVA Assembly 6. Attach CVA Assembly to UnitInstallation of Two Pipe Venting – Horizontal 1. Install Exhaust Pipe2. Install Combustion Air Pipe 3. Seal Wall OpeningsInstallation of Two Pipe Venting - Vertical 3. Seal Roof Penetration1. Install Exhaust Pipe 2. Install Combustion Air PipeInstallation - Electrical Wiring 1.Determine the Size of the Main Power Lines3. Connect the Main Power 4. Wire the Optional Convenience Outlet6. Wire the Evaporative Cooler optional 7. Install Economizer Sensors optional8. Install Discharge Air Sensor optional 9. Install DDC Interface OptionalInstallation of Gas Piping 2. Install Additional Regulator if Required1.Determine the Supply Gas Requirements 3. Connect the Supply Gas LineInstallation - Evaporative Cooler Piping optional 1. Install the Water Supply Line2. Install the Drain Line 3. Check/Adjust Water LevelInstallation of Water WizardTM optional 1.Install Normally Closed Supply Line/ Solenoid2.Install Normally Open Drain Line/ Solenoid Evaporative Cooling with the Water WizardInstallation of Water Wizard 3. Wire the Solenoids4. Wire the Temperature Sensor 2. Verify Nozzle Placement3. Install Suction Line 8. Install the Drain Line5.Mount the Remote Sensing Bulb By Others 6. Check Coil Piping for Leaks4. Install the Drain Line 1. Verify Coil Hand Designation2. Check the Coil for Leaks 3. Connect the Supply & Return Lines5. Air Volume Measurement & Check Start-Up- BlowerPre Start-UpCheck 3. Check for Vibration6. Set-upOptional Components 3. Reset the Temperature Setting Start-Up- Furnaces all unitsStart-Up- Single Stage Control Available Control Options5. Reset the Temperature Setting Start-Up- 2:1 Staged ControlStart-Up- 8:1 Staged Control 2. Check the High Fire Manifold Pressure5. Access the Setpoints Menu 6.Access the Discharge Air Temperature Setting7. Edit the Setting 8. Access the Inlet Air Sensor Setting10. Access the Room Override Setting 11. Edit the Setting1. Send Unit to High Fire Start-Up- 2:1 Electronic Modulation2.Check the High Fire Manifold Pressure Start-Up- 4:1 Electronic Modulation 3. Exit High Fire Mode4. Send Unit to Low Fire 5.Check the Low Fire Manifold Pressures6. Access the Setpoints Menu 7.Access the Discharge Air Temperature Setting8. Edit the Setting 9. Access the Inlet Air Sensor Setting1. Verify Sensor Installation Start-Up- Economizer optional2. Set Minimum Outside Air 3.Set the Enthalpy Changeover Set Point optional1. Check the Installation 3. Fill the Sump and Adjust the Float6. Adjust the Water Bleed-OffRate 8. Put the Unit into Service7.Adjust the Minimum Cooling Temperature Start-Up- Water Wizard optional1. Open the Solenoid 2. Set the Water Pressure10. Adjust the Freeze Temperature Dry Bulb TemperatureWet Bulb Temperature Operation - WaterWizard optionalVariable Volume Operation Check Operation - VAV Units optional2-SpeedVFD Motor ModulatingCheck Operation - Recirculating Units optional Recirculation Operation2-PositionDamper ModulatingSequence of Operation 2:1 Staged Sequence 1.Exhaust Fan Contact S1 Manually Closed optional2. Supply Fan Contact S2 Manually Closed 3. Heat Contact S4 Manually ClosedSequence of Operation 2:1 Modulation Sequence 1.Exhaust Fan Contact S1 Manually Closed optional2. Supply Fan Contact S2 Manually Closed 3. Heat Contact S4 Manually ClosedDischarge Air Temperature dtS Outside Air Temperature OAtSequence of Operation 2:1 Modulation Sequence, continuedSequence of Operation 4:1 Electronic Modulation Program Revision NumberOptional Room Override ROt 4:1 Electronic Modulation4:1 Electronic Modulation, continued Sequence of Operation4. Ignition Controller IC1 Sequence of Operation 5. High Fire – Low Fire Sequence of OperationSequence of Operation 8:1 Staged Control 5. Staging Control Sequence of Operation1.Exhaust Fan Contact S1 Manually Closed optional 2. Supply Fan Contact S2 Manually Closed8:1 Staged Control, continued Operation and Errors Ignition ControllerSequence of Operation Option EC-1 Outside Air Temperature Reference Option EC-3 Differential Temperature ControlOperation - Economizer Option EC-2 Outside Air Enthalpy ReferenceTroubleshooting Blower Does Not OperateMotor Over Amps TroubleshootingAdjust drives to reduce blower RPM Provide proper power supplyInsufficient Airflow Too Much AirflowTroubleshooting Adjust drives as neededExcessive Noise or Vibration TroubleshootingSingle or 2 1 Stage Furnace Will Not Light Troubleshooting2:1 Modulating Furnace Will Not Light Troubleshooting4 1 Modulating Furnace Will Not Light TroubleshootingTroubleshooting Pressure switch PS2 failure4:1 Modulating Furnace Will Not Light Ignition controllers IC# failed8:1 Staged Furnace Will Not Light Troubleshooting8 1 Staged Furnace Will Not Light TroubleshootingFurnace controller SC1 defective Troubleshooting Water Blows through Evaporative CoolerSupply fan must be on for cooler to operate 1. Adjust the Manual Supply Valve 3. Adjust the On Time FactorWater Wizard — Improper Water Supply 2. Enter Program ModeMaintenance - Routine V-BeltDrivesSnow Accumulation WheelsMotors FiltersChilled Water Coils Evaporative CoolersMaintenance - Fall Electrical WiringReplacement Parts High LimitFlushing Coils Reference - Model IGX Venting Connection Location Reference - Model IG Venting Connection LocationAirflow Reference - Model IG Single or 2 Stage Staged GasTest Port ManifoldReference - Model IG 8:1 Staged 64 Model IG / IGX Make-UpAirReference - Model IG 2:1 Modulation Gas Pressure Test Port 3/4 inchManifold Gas Supply Connection Staged Gas Valve Modulating Gas ValveReference - Model IG 4:1 Modulation 66 Model IG / IGX Make-UpAirReference - Model IGX Blower Control Center Reference - Model IGX 8:1 Staged Reference - Model IGX Single or 2 Stage68 Model IG / IGX Make-UpAir Reference - Model IGX 2:1 Modulation Reference - Model IGX 4:1 ModulationManifold Gas Pressure Test Port ModulatingReference - Performance Table Performance TableReference - Start-UpChecklist Start-UpChecklistMaintenance Log Warranty