Trane SCXG-SVX01B-EN manual pre-startup, Installation requirements, Pre-StartupProcedures

pre-startup

Installation requirements

Pre-Startup Procedures

￿WARNING

HazardousVoltage w/Capacitors!

Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/tagout proce- dures to ensure the power cannot be inadvertently energized. For variable frequency drives or other energy storing components provided byTrane or others, refer to the appropriate manufacturer’s literature for allowable waiting periods for discharge of capacitors.Verify with an appropriate voltmeter that all capacitors have discharged. Failure to disconnect power and discharge capacitors before servicing could result in death or serious injury.

Note: For additional information regard- ing the safe discharge of capacitors, see PROD-SVB06A-EN or PROD-SVB06A-FR.

Before starting up units perform the following procedures to ensure proper unit operation.

Unit Protective Covers Remove the shipping protection coverings from the human interface panel (HI) at the control panel, the filter box (or air inlet opening), the discharge air opening, and optional variable frequency drive (VFD).

Compressor Isolators

Loosen compressor isolator mounting bolts and remove shipping bracket from beneath the compressor feet. Retighten isolator mounting bolts.Torque to 18 ft. lbs. (+ 2 ft. Lbs.)

Supply Fan Isolators

Remove the shipping channels and mounting bolts from beneath the fan. See Figure I-PR-1. Open both fan compartment access doors to access the channels. There are four mounting points for 20-38 ton units and six mounting points for 40-80 ton units. See Fig I-PR-2.

Note: For 20-38 ton units, do not remove the fan assembly shipping blocks and tie down bolts if the fan speed is 750 rpm or less.

While keeping the fan mounting frame level, turn the fan isolator height adjusting bolts until the fan housing P-gasket compresses 1/4” against the roof transi- tion piece. See Figure I-PR-1.

Figure I-PR-1. Supply fan horizontal isolation	Figure I-PR-2. Fan isolator locations.
shipping bracket.

SCXG-SVX01B-EN 35