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Preventative Maintenance Agreement

"I have been highly satisfied with the work Dean E. Norris has provided to Northwest High School. They do whatever I ask of them and take care of our HVAC needs specifically our centrifugal chillers. They are reliable and quick to respond to our needs." — Dave Dyer, USD 259 Wichita School District

Air Conditioning and Heating Service Preventative Maintenance Agreement

Dean E. Norris, Inc. Preventative Maintenance Agreement (PMA), you will receive a custom service plan to meet your facility’s needs. No application is the same, so we listen to your needs and evaluate your system to provide the tailored agreement for your facility. We find ways to make your system run to their maximum efficiency to prevent costly repairs and optimize their operations to save you money.

Our typical Preventative Maintenance Agreements and services on Chillers, Boilers, Commercial Roof Top Units, Packaged Units, CRAC Units, Split Systems, Shop Heaters, Exhaust Fans and Air Compressors include:

Cleaning: coil surfaces; fan impellers and blades; electrical contacts; burner orifices; passages and nozzles; pilot and lighter

Aligning: belt drives; drive couplings; air fins, etc.

Calibrating: safety controls; temperature and pressure controls, etc.

Tightening: electrical connections; mounting bolts; pipe clamps; refrigerant piping fittings; damper sections, etc.

Adjusting: belt tensions; refrigerant charge; super heat; fan RPM; water chemical feed and feed rate; burner/fuel air ratios; gas pressure; control set points and limits; compressor cylinder un-loaders; damper close off; etc.

Lubricating: motors; fan and damper bearings; valve stems; damper linkages; fan van linkages, etc.

Painting: for corrosion control, as directed by our scheduling system and on an as needed bases.