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Maintenance
d. Sprayer pressure must not exceed 600 psi.
2. Spray leaving air side of the coil first then spray the entering air side of the coil. Allow the
detergent and water solution to stand on the coil for five minutes.
3. Rinse both sides of the coil with cool, clean water.
4. Inspect the coil. If it still appears dirty, repeat the cleaning procedure.
5. Reinstall all unit components and panels, and restore electrical power and gas supply to the
unit.
Refrigerant System
Follow the Trane recommended procedures on operation, maintenance, and service to ensure
refrigerant conservation and emission reduction. Also, pay specific attention to the following:
–
Whenever removing refrigerant from air conditioning or refrigerating equipment, recover
for reuse, recycle, reprocess (reclaim), or properly destroy it.
–
Always determine possible refrigerant recycling or reclaiming requirements before
beginning recovery. Questions about recovered refrigerants and acceptable refrigerant
quality standards are addressed in ARI Standard 700.
–
Use approved containment vessels and safety standards. Comply with all applicable
transportation standards when shipping refrigerant containers.
–
To minimize emissions while recovering refrigerant, use recycling equipment. Always
attempt to use methods which will pull the lowest possible system vacuum while recovering
and condensing refrigerant into containment.
–
When leak checking, be aware of any new leak test methods which eliminate refrigerant as
a trace gas.
–
When cleaning system components or parts, do not use CFC11 (R11) or CFC113 (R113).
Refrigeration system clean up methods using filters and dryers are recommended. Do not
use solvents which have ozone depletion factors. Properly dispose of used materials.
–
Take extra care to properly maintain all service equipment directly supporting refrigerant
service work such as gauges, hoses, vacuum pumps, and recycling equipment.
–
Stay aware of unit enhancements, conversion refrigerants, compatible parts, and
manufacturer's recommendations that will reduce refrigerant emissions and increase
equipment operating efficiencies. Follow specific manufacturer's guidelines for conversion
of existing systems.
–
To assist in reducing power generation emissions, always attempt to improve equipment
performance with improved maintenance and operations that will help conserve energy
resources.
Refrigerant Leak Testing
WARNING
Confined Space Hazards!
Do not work in confined spaces where sufficient quantities of a refrigerant or other hazardous,
toxic or flammable gas may be leaking. Refrigerant or other gases could displace available
oxygen to breathe, causing possible asphyxiation or other serious health risks. Some gases may
be flammable and or explosive. Evacuate the area immediately and contact the proper rescue or
response authority. Failure to take appropriate precautions or to react properly to a potential
hazard could result in death or serious injury.
maintenance procedure
