Greenheck Fan 470656 manual Installation of Two Pipe Venting Vertical, Seal Roof Penetration

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Installation of Two Pipe Venting – Vertical

Refer to the diagram below for venting on vertical concentric systems. The combustion air pipe must terminate at least 12 inches above the roof. This clearance may need to be increased to accommodate for snow accumulation. The exhaust must terminate at least 12 inches above and 12 inches horizontally from the combustion air inlet.

Exhaust Vent

C

Combustion

Terminal

Air Inlet

 

Terminal

B

 

 

A

Roof Line

 

EXHAUST

COMBUSTION AIR

D

 

 

Tee with

D

drip leg and

clean-out cap

A = 12 inch minimum, but should size according to expected snow depth

B = 24 inch minimum C = 12 inch minimum D = 12 inch minimum

Vent Connection Diameter

Vent terminals must be used. Construct the vent system as shown in the drawings and refer to the table for the correct vent connection diameters.

Furnace Size

Exhaust

Combustion

(MBH)

(inches)

(inches)

 

 

 

75 - 175

4

4

 

 

 

200 - 400

6

6

 

 

 

Vent Length

Refer to table for minimum and maximum vent lengths. The minimum vent length is 10 feet and the maximum vent length is 70 feet. The total equivalent vent length must include elbows. The equivalent length of a 4 inch elbow is 6 feet and the equivalent length of a 6 inch elbow is 10 feet.

Vent

Minimum

Maximum

Length

(feet)

(feet)

 

 

 

Vertical

10

70

 

 

 

1. Install Exhaust Pipe

Run an exhaust pipe from the unit’s combustion exhaust through the roof to the outdoors. The exhaust pipe must terminate at least 12 inches above the outside surface of the roof. This clearance may need to be increased to accommodate snow accumulation. Attach the exhaust vent terminal to the end of the exhaust pipe.

2. Install Combustion Air Pipe

Run a combustion air pipe from the unit’s combustion air intake through the roof to the outdoors. The combustion air pipe must terminate at least 12 inches horizontally and vertically from the combustion exhaust pipe and at least 24 inches from the exterior surface of the roof. These clearances may need to be increased to accommodate for expected snow accumulation. Attach the combustion air terminal to the end of the combustion air pipe.

3. Seal Roof Penetration

Using an appropriate method, seal the roof openings around the vent pipes.

INTAKE END

Exhaust Connection

Exhaust Connection

(Model IGX)

(Model IG)

DISCHARGE

END

Combustion Air Connection

Combustion Air Connection

(Model IGX)

(Model IG)

14 Model IG / IGX Make-Up Air

®

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Contents Installation, Operation and Maintenance Manual General Safety InformationHandling Inspection and Maintenance during StorageReceiving StorageTable of Contents Clearance to Combustibles / Service ClearancesInstallation of Indoor Unit Installation of Arrangement DB / HZInstall Curb/Equipment Supports Installation of Roof Mounted Unit Arrangement DBCInstall Combination Curb Adaptor Assemble and Attach WeatherhoodInstall Supply Unit Install Exhaust FanInstall Exhaust Options Installation of Evaporative Cooling Module optional Installation of Venting for Outdoor UnitsStandard Indoor Venting Installation of Venting for Indoor UnitsVenting Methods Separated Combustion Concentric VentingVent Pipe Diameter Installation of Standard Indoor VentingInstalling Exhaust Vent Pipe Installation of Concentric Venting General Concentric Venting HorizontalConcentric Venting Vertical Intake END Installation of Two Pipe Venting Horizontal Seal Wall OpeningsInstallation of Two Pipe Venting Vertical Seal Roof PenetrationInstallation Electrical Wiring Install Discharge Air Sensor optional Wire the Evaporative Cooler optionalInstall Economizer Sensors optional Install DDC Interface OptionalDetermine the Supply Gas Requirements Installation of Gas PipingInstall Additional Regulator if Required Connect the Supply Gas LineInstall the Drain Line Installation Evaporative Cooler Piping optionalInstall the Water Supply Line Check/Adjust Water LevelInstall Normally Open Drain Line/ Solenoid Installation of Water WizardTM optionalInstall Normally Closed Supply Line/ Solenoid Water Wizard Valves When provided by manufacturerWire the Solenoids Installation of Water WizardInstallation Direct Expansion DX Coil Piping optional Wire the Temperature SensorCheck Coil Piping for Leaks Install Suction LineMount the Remote Sensing Bulb By Others Evacuate and Charge the CoilInstallation of Chilled Water Coil Piping optional Installation of Building Pressure Control optionalStart-Up Blower Set-up Optional Components Start-Up Single Stage Control Reset the Temperature SettingStart-Up Furnaces all units Send Unit to High FireSend Unit to Low Fire Start-Up 21 Staged ControlStart-Up 81 Staged Control Check the Low Fire Manifold PressureEdit the Setting Access the Setpoints MenuAccess the Discharge Air Temperature Setting Access the Inlet Air Sensor SettingAccess the Room Override Setting High Fire Adjustment Start-Up 21 Electronic ModulationCheck the Low Fire Manifold Pressures Exit High Fire ModeStart-Up 41 Electronic Modulation Access the Setpoints Menu Set Minimum Outside Air Verify Sensor InstallationStart-Up Economizer optional Set the Enthalpy Changeover Set Point optionalStart-Up Evaporative Cooling optional Start-Up Water Wizard optional Operation - Water Wizard optional Building Pressure Control External Signal a variableCheck Operation VAV Units optional Building Pressure Control a Check Operation Recirculating Units optionalRecirculation Operation Damper actuator may take a fewSequence of Operation Staged Sequence Exhaust Fan Contact S1 Manually Closed optionalSequence of Operation 21 Modulation Sequence Sequence of Operation Modulation Sequence Discharge Air Temperature dtSOutside Air Temperature OAt Operation Modulation Staged ControllerOptional Room Override ROt Sequence of Operation 41 Electronic ModulationProgram Revision Number Light Off BlinkingSequence of Operation Electronic Modulation Sequence of Operation Staged Control Staging Control Sequence of OperationOperation and Errors Ignition Controller Following are the green LED codes of operationOperation Economizer Option EC-1 Outside Air Temperature ReferenceOption EC-3 Differential Temperature Control Option EC-2 Outside Air Enthalpy ReferenceTroubleshooting Blower Does Not OperateMotor Over Amps Insufficient Airflow Too Much AirflowExcessive Noise or Vibration Single or 21 Stage Furnace Will Not Light Improper manifold pressureModulating 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 Evaporative Cooler does not Operate Recirculating pump Water Blows through Evaporative CoolerWater Wizard Improper Water Supply Adjust the Manual Supply ValveAdjust the On Time Factor Snow Accumulation Maintenance RoutineBelt Drives WheelsChilled Water Coils MotorsFilters Evaporative CoolersMaintenance Fall Flushing Coils Reference Model IG Venting Connection Location Reference Model IGX 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 Reference Performance Table Performance TableReference Start-Up Checklist Start-Up ChecklistMaintenance Log Warranty