Greenheck Fan Part #470655 manual Installation of Indoor Unit, Install Hangers, Install Unit

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Installation of Indoor Unit

Installation of Indoor Unit

1. Install Hangers

Install threaded hangers from ceiling supports. When locating hangers, allow enough room to open access panel(s). Be sure to allow for the recommended diffuser height outlined in the Diffuser installation section, page 6. Two nuts must be used on the end of each threaded hanger. Ceiling supports are supplied by others. Refer to diagram below.

NOTE

Refer to the Diffuser installation section, page 6, for instructions on mounting the diffuser.

2. Install Unit

Using sheet metal screws, attach the weatherhood/ thru-wall/filter section to the blower/burner section. The flange on the weatherhood/thru-wall/filter section should overlap the flange on the blower/burner section.

NOTE

Good duct practices should be followed for all ductwork. Ductwork should be installed in accordance with SMACNA and AMCA guidelines, NFPA 96 and any local codes. Reference the CAPS submittal for duct sizes.

3. Seal Wall Opening

Apply sealant around the perimeter of the weatherhood to prevent water penetration and drafts into the building.

Sealant

Sealant

NOTE

50/50 units are shipped with the louvered intake assembled to the unit and do not require a thru wall weatherhood.

Raise the assembled unit into place.

Using two nuts per hanger, fasten the unit supports to the hangers under the unit. Appropriate unit supports, such as the optional manufacturer hanging bracket kit, or c-channel and angle iron (supplied by others), should be used. Refer to the Indoor Mounting drawing.

In order to prevent the unit from swinging and to provide a safe environment for service and maintenance, additional measures must be taken to secure the unit in all directions.

Ceiling Supports

Diffuser

Hangers

Unit

Supports

Indoor Mounting

NOTE

Two nuts must be used on each end of each threaded hanging rod for proper support.

4DGX Industrial Space Heating

Seal Wall Opening

®

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Contents General Safety Information 2.Do not touch electrical switchesIf you smell gas 1.Open windows 3.Extinguish any open flameInspection and Maintenance during Storage ReceivingUnpacking HandlingTable of Contents Clearance to Combustibles / Service ClearancesInstallation TroubleshootingInstallation of Indoor Unit 1. Install Hangers2. Install Unit 3. Seal Wall OpeningInstallation of Arrangement DB / HZ 1.Install Curb and/or Equipment Supports2. Install Ductwork 4. Install UnitInstallation of Diffuser and Remote Panel TSCP 1. Install Diffuser2. Install TSCP AirflowInstallation of Electrical Wiring 1.Determine the Size of the Main Power Lines3.Connect the Main Power 4. Wire the Optional Convenience OutletInstallation of Gas Piping 2.Install Additional Regulator if Required1.Determine the Supply Gas Requirements 3. Connect the Supply Gas LineStart-Up- Blower 4. Pipe the Optional Vent Line5. Test the System for Leaks Pre Start-UpCheck5.Air Volume Measurement and Check 2.Check the Blower Rotation3. Check for Vibration 4. Motor CheckStart-UpDirect Gas Start-UpDirect Gas • 100% Outside Air1. Check the Supply Gas Pressure 4a. Set the Burner Air Pressure DifferentialStart-UpDirect Gas 50/50 Recirculation 4b. Set the Burner Air Pressure Differential5. Set the Low Fire Time Delay 6. Set the Maximum Firing RateStart-UpDirect Gas continued Regulators and Modulating Valves7. Set the Minimum Firing Rate 8. Set Daytime Temperature11.Flame Signal Check 9. Set Nighttime Temperature10.Program the 7 Day Time Clock Flame Signal CheckWithout 7-DayTimer 1.Switch S2 in Summer Mode2.Switch S2 in Winter Mode 3.Flame Safeguard FSG SequenceOperation - Electrical Sequence With 7-DayTimer 1.Switch S2 in Summer Mode2.Switch S2 in Winter Mode 3.Flame Safeguard FSG SequenceTroubleshooting Blower Does Not OperateTurn Supply Switch S2 On ResetMotor Overamps TroubleshootingReference Blower Start-Up- Step #5 Reference Blower Start-Up- Step #2Insufficient Airflow Too Much AirflowTroubleshooting Reference Filters in the Maintenance sectionTroubleshooting Excessive Noise or VibrationReference Bearings in the Maintenance section Heater Does Not Operate TroubleshootingTurn Heat Switch S4 On Wire Heat Switch S4Troubleshooting Uncross wires and reconnectIf problems remain, consult the factory Heater Does Not OperateTroubleshooting Adjust drives as neededHeater Does Not Operate Reference Direct Gas Start-Up- Step #11Maintenance - Routine Snow AccumulationMotors WheelsBearings FiltersMaintenance - Fall High LimitBurner Gas TrainTypical Gas Train Layout 400 – 800 MBH ReferenceDGX Industrial Space Heating Dirty Filter Switch Typical Control Center LayoutReference 28 DGX Industrial Space HeatingStart-UpChecklist Typical setting 5 minutes 45ºFTypical setting varies ReferenceMaintenance Log Maintenance Log Warranty Copyright 2012 Greenheck Fan Corporation