Trane SCXG-SVX01B-EN manual Inlet GuideVanes, Coil Fin Cleaning, Proper Coil CleaningAgent

maintenance

Maintenance procedures

Inlet GuideVanes

Perform the following procedure every six months for proper inlet guide vane operation:

1.Spray all parts of guide vane assembly with WD40.

2.Spray all steel parts of guide vane assembly with ZRC.

3.Spray hubs and moving parts with dry silicone lubricant (Mobil Mobilux 2, Shell alvonia 2, or equivalent).

On occasion, the inlet guide vane actuator or inlet guide vanes may need to be removed. For proper adjustment of inlet guide vanes and/or actuator.

Note: Perform this procedure monthly if the

unit is in a coastal area or corrosive

environment.

Coil Fin Cleaning

Keep coils clean to maintain maximum performance. For operation at its highest efficiency, clean the refrigerant coil often during periods of high cooling demand or when dirty conditions prevail. Clean the coil a minimum of once per year to prevent dirt buildup in the coil fins, where it may not be visible.

Remove large debris from the coils and straighten fins before cleaning. Remove filters before cleaning.

Clean refrigerant coils with cold water and detergent, or with one of the com- mercially available chemical coil clean- ers. Rinse coils thoroughly after cleaning.

Economizer and evaporator coils are installed so the evaporator is directly behind the economizer.To clean between the coils, remove the sheet metal block off. Access the block off by removing the corner panels on the unit’s left or right rear side.

NOTICE

Proper Coil CleaningAgent!

Do not clean the refrigerant coil with hot water or steam.The use of hot water or steam as a refrigerant coil-cleaner agent may cause high pressure inside the coil tubing and subsequent damage to the coil.

Do not use acidic chemical coil cleaners. Also, do not use alkaline chemical coil cleaners with a pH value greater then

8.5(after mixing) without using an aluminum corrosion inhibitor in the cleaning solution. Use of the chemical may result in equipment damage.

￿WARNING Hazardous Chemicals!

Coil cleaning agents can be either acidic or highly alkaline. Handle chemical carefully. Proper handling should include goggles or face shield, chemical resistant gloves, boots, apron or suit as required. For personal safety refer to the cleaning agent manufacturer’s Materials Safety Data Sheet and follow all recommended safe handling practices. Failure to follow all safety instructions could result in death or serious injury.

If the refrigerant coil is installed back to back with the waterside economizer coil, use a cleaner that is acceptable for cleaning both types of coils.

￿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.

SCXG-SVX01B-EN 101