Thank you for participating in our survey about faults in SMALL COMMERCIAL building packaged AC systems. Please think about all the times you, your workers, or your customers encounter an RTU, whether it's routine maintenance or a service call. Answer the following question for each of the faults listed. Don't worry, we don't expect you to know exact numbers, just use your judgment and gut instincts.

WHAT PERCENT OF EXISTING COMMERCIAL RTUS HAVE THE FOLLOWING FAULTS?

1. Cabinet

  <1% 1-5 5-10 10-20 20-30 30-40 40-50 >50%
Access panel ajar or completely off
Other faults (please specify below)

2. Compressor

  <1% 1-5 5-10 10-20 20-30 30-40 40-50 >50%
Electrical problem (like motor windings)
Mechanical problem (like bearings)
Burn out
Other faults (please specify below)

3. Condensate

  <1% 1-5 5-10 10-20 20-30 30-40 40-50 >50%
Condensate leaks - drain line plugged
Condensate leaks - evaporator coil frozen
Other faults (please specify below)

4. Condenser Coil

  <1% 1-5 5-10 10-20 20-30 30-40 40-50 >50%
Dirty coil affecting heat transfer efficiency but not airflow
Dirty coil affecting airflow
Corrosion of coil
Other faults (please specify below)
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