Greenheck Fan Outdoor Air Ventilator manual Direct Expansion Coils, Main Steam

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Main

Steam

Gate Valve

Control Valve, Modulating

Two-Position

Check Valve-Vacuum Breaker

Float and Thermostat Trap

Strainer

Greenheck does not supply coil controls, all control elements shown are supplied by others.

Return Main

Figure 1

Recommended Steam Coil Piping

Direct Expansion Coils

Application Recommendations:

1.Piping should be in accordance with accepted industry standards.

2.The condensate drain pipe should be sized adequately to ensure the condensate

drains properly. The bottom of the drain pan should be twice the distance of the internal static pressure water column above the exit of the trap.

3.When connecting suction and liquid connections make sure the coil is free from all foreign material. Make sure all joints are tight and free of leakage.

4.Greenheck does not supply compressor or condensing units, for further instruction on DX coil installation and operation contact your compressor and/or condenser manufacturer.

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Contents Greenheck Table of Contents Attach Ductwork to Unit Discharge Installation Instructions forTypical Installations Mounting the UnitRoof Opening Install Roof Curb Equipment SupportInstall Ductwork NV-45 w/Downblast DischargeComplete Installation Install Supply Unit1a. Slab Construction 1b. Install UnitCurb Mounting Rail MountingDischarge Opening Sizes Optional Up-stream Heating CoilInstall Curb Assemble Roof CurbLocate and Cut Roof Opening Detail a Install UnitInstall Birdscreen or Optional Weatherhood Filters Attach Support LegsAttach Weatherhood For units with control centers Sequence for wiring NV unitElectrical Instructions For units without control centersCheck Blower Rotation Air Volume Check and MeasurementSettings for Optional Components Special Tools Required Check VoltageSteam Coils Instructions for CoilsMain Steam Direct Expansion CoilsFilters Coil MaintenanceCleaning Water CoilsBlower Unit Elevation View General Dimensions and WeightsYearly MaintenanceWeeks after startup Every 3 MonthsField Start-Up Documentation Maintenance Documentation