Greenheck Fan 470656 manual Installation of Venting for Indoor Units, Venting Methods

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Installation of Venting for Indoor Units

Warning

The following guidelines must be followed for all indoor units:

1.Installation of venting must conform with local building codes. In the absence of local codes, installation must conform with the National Fuel Gas Code, ANSI Z223.1 or in Canada, CAN/ CGA-B149 installations codes.

2.For the exhaust pipe, use pipe approved for a category III appliance or single wall, 26 gauge or heavier galvanized vent pipe. The piping is required to be gas tight by ANSI.

3.For the combustion air pipe on separated combustion units, sealed single-wall galvanized air pipe is recommended.

4.The joints must be sealed with a metallic tape or Silastic™ suitable for temperatures up to 350°F.

5.A minimum of 12 inches of straight vent pipe is recommended after the exhaust connection and before any elbows.

6.Vertical combustion air pipes should be fitted with a tee, drip leg and clean-out cap to prevent any moisture in the combustion air pipe from entering the unit.

7.To reduce condensation, insulate any vent runs greater than 5 feet.

8.All vent pipe connections should be made with at least three corrosion resistant sheet metal screws.

9.Refer to the National Fuel Gas Code for additional piping guidelines.

Note

Vent piping is supplied by others and not supplied by manufacturer.

Note

The drip leg should be cleaned out periodically during the heating season.

Note

Clearances from combustible material for indoor units are determined by the National Fuel Gas Code and/or other local codes.

Venting Methods

There are three venting methods for indoor mounted units. For each method, the units can be vented horizontally through an exterior wall or vertically through the roof. Specific venting instructions are provided for each method and shown in the following pages. Construct the vent system as shown in these instructions. Refer to your unit specific submittal to determine the applicable venting option.

The venting method options are:

Standard Indoor Venting

•uses building air for combustion

•vents exhaust to outdoors

•one exterior roof or wall penetration

Separated Combustion Concentric Venting

•uses outside air for combustion

•vents exhaust to outdoors

•one exterior roof or wall penetration

Separated Combustion 2-Pipe Venting

•uses outside air for combustion

•vents exhaust to outdoors

•two exterior roof or wall penetrations

Note

For each method, the units can be vented horizontally through an exterior wall or vertically through the roof. Refer to the specific venting instructions for your unit. Construct the vent system as shown in these instructions.

8 Model IG / IGX Make-Up Air

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Contents Installation, Operation and Maintenance Manual General Safety InformationInspection and Maintenance during Storage ReceivingHandling StorageTable of Contents Clearance to Combustibles / Service ClearancesInstallation of Indoor Unit Installation of Arrangement DB / HZInstallation of Roof Mounted Unit Arrangement DBC Install Combination Curb AdaptorInstall Curb/Equipment Supports Assemble and Attach WeatherhoodInstall Supply Unit Install Exhaust FanInstall Exhaust Options Installation of Evaporative Cooling Module optional Installation of Venting for Outdoor UnitsInstallation of Venting for Indoor Units Venting MethodsStandard Indoor Venting 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 Wire the Evaporative Cooler optional Install Economizer Sensors optionalInstall Discharge Air Sensor optional Install DDC Interface OptionalInstallation of Gas Piping Install Additional Regulator if RequiredDetermine the Supply Gas Requirements Connect the Supply Gas LineInstallation Evaporative Cooler Piping optional Install the Water Supply LineInstall the Drain Line Check/Adjust Water LevelInstallation of Water WizardTM optional Install Normally Closed Supply Line/ SolenoidInstall Normally Open Drain Line/ Solenoid Water Wizard Valves When provided by manufacturerInstallation of Water Wizard Installation Direct Expansion DX Coil Piping optionalWire the Solenoids Wire the Temperature SensorInstall Suction Line Mount the Remote Sensing Bulb By OthersCheck Coil Piping for Leaks Evacuate and Charge the CoilInstallation of Chilled Water Coil Piping optional Installation of Building Pressure Control optionalStart-Up Blower Set-up Optional Components Reset the Temperature Setting Start-Up Furnaces all unitsStart-Up Single Stage Control Send Unit to High FireStart-Up 21 Staged Control Start-Up 81 Staged ControlSend Unit to Low Fire Check the Low Fire Manifold PressureAccess the Setpoints Menu Access the Discharge Air Temperature SettingEdit the 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 Verify Sensor Installation Start-Up Economizer optionalSet Minimum Outside Air 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 Check Operation Recirculating Units optional Recirculation OperationBuilding Pressure Control a Damper actuator may take a fewSequence of Operation Staged Sequence Exhaust Fan Contact S1 Manually Closed optionalSequence of Operation 21 Modulation Sequence Discharge Air Temperature dtS Outside Air Temperature OAtSequence of Operation Modulation Sequence Operation Modulation Staged ControllerSequence of Operation 41 Electronic Modulation Program Revision NumberOptional Room Override ROt 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 operationOption 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 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 Maintenance Routine Belt DrivesSnow Accumulation WheelsMotors FiltersChilled Water Coils 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
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