5.3003.28 Compressor—Mid and High Rise

Topic: 
Forced Air
Subtopic: 
System Assessment and Maintenance
Desired Outcome: 
Compressor operates as designed
For supporting material, see Referenced Standards.
TitleSpecification(s)Objective(s)
5.3003.28a
Sizing

Compressor will be properly sized for the existing equipment and evaluated in accordance with ANSI ANSI American National Standards Institute, www.ansi.org / ACCA ACCA Air Conditioning Contractors of America, www.acca.org Standard 5

Ensure equipment operates as designed

Ensure equipment operates safely

Ensure equipment operates efficiently

Ensure equipment is durable
5.3003.28b
Location

Compressor will be located in an area that is on a level surface and that provides adequate ventilation

Ensure equipment operates as designed

Ensure proper lubrication of moving parts

Ensure equipment operates efficiently

Ensure equipment is durable
5.3003.28c
Refrigerant piping

Suction line will be properly sized

Refrigeration tubing will be used

Inert gas will be trickled through piping when brazing joints together

Filter dryer will be installed

P-type oil traps will be located at the base of suction line riser

Proper evacuation and dehydration procedures will be followed

Horizontal runs will be sloped 1" per 20' toward the compressor

Vibration absorbers may be used and installed in accordance with manufacturer specifications

Ensure adequate velocities for proper oil return

Ensure that the piping is installed in a manner that does not interfere with normal maintenance or service procedures

Ensure contaminants do not enter the system

Ensure proper operation

Ensure equipment operates efficiently

Ensure equipment is durable
5.3003.28d
Electrical

Field wiring will be installed in accordance with NFPA NFPA National Fire Protection Association, www.nfpa.org 70 National Electric Code and local codes

Proper voltage, frequency, and phase will coincide with the nameplate

Ensure equipment operates as designed

Ensure equipment operates safely

Ensure equipment operates efficiently

Ensure equipment is durable
5.3003.28e
Startup

All electrical connections will be tight

All safety controls will be installed and operational

Oil level will meet manufacturer-recommended level

Only approved refrigerant oil will be used

Proper refrigerant charge will be verified by approved methods

Refrigerant type and amount will be documented

Ensure equipment operates as designed

Ensure equipment operates safely

Ensure equipment operates efficiently

Ensure equipment is durable
5.3003.28f
Maintenance

Maintenance will be scheduled in accordance with ANSI ANSI American National Standards Institute, www.ansi.org / ACCA ACCA Air Conditioning Contractors of America, www.acca.org / ASHRAE ASHRAE American Society of Heating, Refrigerating and Air-Conditioning Engineers, www.ashrae.org Standard 180; Standard Practice for Inspection and Maintenance of Commercial Building HVAC HVAC Heating, ventilation, and air conditioning Systems or ANSI ANSI American National Standards Institute, www.ansi.org / ACCA ACCA Air Conditioning Contractors of America, www.acca.org Standard 4 Maintenance of Residential HVAC HVAC Heating, ventilation, and air conditioning Systems

Maintenance procedures include, but are not limited to, the following:

  • Refrigerant charge will be evaluated, and refrigerant will be added or removed as necessary (a lack of refrigerant may indicate a leak, which will need to be corrected)
  • Oil level will be evaluated, and oil will be added or removed as necessary
  • Filter dryer moisture indicator and pressure drop across the filter will be evaluated
  • Filter dryer will be replaced as necessary
  • Amperage draw will be evaluated and compared to the compressor nameplate

Ensure equipment operates as designed

Ensure equipment operates safely

Ensure equipment operates efficiently

Ensure equipment is durable