Trane SCXG-SVX01B-EN manual Connecting toTracer Summit, Pre-Startup Checklist

pre-startup

Installation requirements

Connecting toTracer Summit

￿WARNING

Hazardous Voltage w/Capaci- tors!

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.

IntelliPak commercial self-contained (CSC) units operate withTrane building automation software,Tracer Summit version 10.0.4 or later or any OS2 operating system.

Note: Tape the non-insulated end of the shield on shielded wire at the unit. Any connection between the shield and ground will cause a malfunction. If daisy-chained in the unit, splice and tape the shields to prevent contact with ground.

CommunicationWiring

Note: Communication link wiring is a shielded, twisted pair of wire and must comply with applicable electrical codes.

An optional communication link provides a serial communication interface (SCI) betweenTracer Summit and each commercial self-contained (CSC) unit in the system. The CSC system can have a maximum of 12 CSC units per connection link toTracer Summit. Use a single 18 AWG shielded, twisted pair wire with stranded, thinned copper conductors to

establish each communication link betweenTracer Summit and each unit.

Pre-Startup Checklist

Complete this checklist after installing the unit to verify all recommended installation procedures are complete before unit start-up. This does not replace the detailed instructions in the appropriate sections of this manual. Always read the entire section carefully to become familiar with the procedures.

Receiving

†Inspect unit and components for shipping damage. File damage claims immediately with the delivering carrier.

†Check unit for missing material. Look for ship-with drives, isolators, filters, and sensors that are packaged separately and placed inside the main control panel, fan section, or compressor section. See the “Receiving and Handling” section.

†Check nameplate unit data so that it matches the sales order requirements.

Unit Location

†Remove crating from the unit. Do not remove the shipping skid until the unit is set in its final position.

†Ensure the unit location is adequate for unit dimensions, ductwork, piping, and electrical connections.

†Ensure access and maintenance clearances around the unit are adequate. Allow space at the end of the unit for shaft removal and servicing. See the “Service Access” section.

Unit Mounting

†Place unit in its final location.

†Remove shipping skid bolts and skid. †If using isolators, properly mount unit according to the isolator placement

sheet.

†Remove shipping brackets on the compressors and supply fan.

†Remove the unit protective shipping covers.

Component Overview

†Verify the fan and motor shafts are parallel.

†Verify the fan and motor sheaves are aligned.

†Check the belt tension for proper adjustment.

†Ensure the fan rotates freely.

†Tighten locking screws, bearing set screws and sheaves.

†Ensure bearing locking collars do not wobble when rotated.

Ductwork

†If using return ductwork to the unit, secure it with three inches of flexible duct connector.

†Extend discharge duct upward without change in size or direction for at least three fan diameters.

†Use a 3” flexible duct connection on discharge ductwork.

†Ensure trunk ductwork toVAV boxes is complete and secure to prevent leaks.

†Verify that all ductwork conforms to NFPA 90A or 90B and all applicable local codes

Water-Cooled Unit Piping

†Verify the condensate drain piping is complete for the unit drain pan. Install and tighten the condensate “P” trap drain plug.

†Install water piping drain plugs, economizer header, and condenser vent plugs.

†Make return and supply water connections to the unit and/or waterside economizer piping package with recommended valves and piping components. Refer to the “Water Piping” section.

†Install unions to allow waterside maintenance.

†Install cooling tower and standby pumps.

†Treat water to prevent algae, slime, and corrosion.

†Prevent refrigerant piping from rubbing against other objects.

Air-Cooled Units Only

†Connect refrigerant lines. †Install liquid line filter driers.

Units with Hydronic Heat

†Verify the entering water temperature sensor is installed upstream of the hydronic coil.

Units with Electric Heat

†Verify the supply air temperature sensor is downstream of the electric heat coil.

56 SCXG-SVX01B-EN