Preventive maintenance
Inspect unit for proper refrigerant level and adjust if necessary
Inspect coil and cabinet—clean as needed
Inspect fan motor and fan blades for wear and damage—on older models lubricate as needed
Inspect control box, associated controls/accessories, wiring and connections. Controls may include contactors, relays, circuit boards, capacitors, sump heat and other accessories. All control box and electrical parts should be checked for wear or damage.
Inspect compressor and associated tubing for damage
Inspect and clean blower assembly (includes blower housing, blower wheel and motor)
Clean or replace air filters
Inspect conditioned airflow system (ductwork)
Inspect evaporator coil, drain pan and condensate drain lines. Clean as needed
Why has refrigerant 22 drastically increased in price ?
How much HCFC-22 will be available to contractors in 2012 is an unanswered question as the Environmental Protection Agency (EPA) considers a faster phaseout of HCFCs.
The EPA began the year by issuing a 75-page proposal called Protection of Stratospheric Ozone: Adjustments to the Allowance System for Controlling HCFC Production, Import, and Export.
Heat Pumps
•Inspect unit for proper refrigerant level and adjust if necessary
•Inspect coil and cabinet—clean as needed
•Inspect fan motor and fan blades for wear and damage—on older models lubricate as needed
•Inspect control box, associated controls/accessories, wiring and connections. Controls may include contactors, relays, circuit boards, capacitors, sump heat and other accessories. All control box and electrical parts should be checked for wear or damage.
•Inspect compressor and associated tubing for damage
