Maintenance Tips

You wouldn’t drive your car 100,000 kms without changing the oil. The same logic holds true for your air conditioning system. Regular preventive maintenance is the best way to ensure trouble-free operation and peak performance. Pre-season maintenance is also important. It can help to avoid a system failure in severe weather when you need it most, and it can also keep your electricity bill from getting out of control.

WHEN SHOULD I DO MAINTENANCE?

The old adage is true: an ounce of prevention is worth a pound of cure. Below you’ll find our Preventative Maintenance Checklist, which is our proven method to keep your system in the pink and your home in constant comfort. Our advice is to perform maintenance at least once a year, before the cooling season.

PREVENTIVE MAINTENANCE CHECKLIST

Many Trane dealers provide priority service for their customers who have an annual maintenance or service agreement. Preventive maintenance will ensure that your system runs as efficiently as possible. Your local dealer will perform the following tasks, depending on the unit:

OUTDOOR UNITS

  • Inspect unit for proper refrigerant level and adjust if necessary
  • Clean dirt, leaves and debris from inside cabinet
  • Inspect base pan for restricted drain openings—remove obstructions as 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

INDOOR UNITS

  • Inspect and clean blower assembly (includes blower housing, blower wheel and motor)
  • On older models, lubricate motor and inspect and replace fan belt if needed
  • Inspect evaporator coil, drain pan and condensate drain lines. Clean as needed
  • Inspect control box, associated controls, wiring and connections
  • Clean or replace air filters

WHILE YOUR SYSTEM IS OPERATING

  • Monitor system starting characteristics and capabilities
  • Listen for abnormal noise
  • Search for source of unusual odors
  • Monitor air conditioning for correct refrigerant charge
  • Measure outdoor dry bulb temperature
  • Measure indoor dry and wet bulb temperature
  • Measure high and low side system pressures
  • Measure temperature rise and adjust airflow as needed
  • Check vent system for proper operation
  • Monitor system for correct line and load volts/amps
  • Monitor system operation per manufacturer's specifications
  • Provide system operation report and recommend repairs or replacement as necessary

NOTE: Trane recommends all maintenance and service work be performed by a professional air conditioning and heating dealer that holds the appropriate credentials to install and service air conditioning and heating equipment.

HOW CAN I GET THE MOST OUT OF MY TRANE AC?

Trane systems are designed to provide optimal efficiency and comfort. Now it’s time to do the same to your home. Here are some things you can do around the house to optimise the operation of your system, as well as the comfort inside your home.

COOLING

  • Set the thermostat as high as comfort will permit.
  • When building a new house or renovating an old one, choose light-colored roof shingles to reflect more of the sun's heat.
  • During moderate weather, don't use the air conditioner unnecessarily.
  • Draw blinds or drapes to block the sunlight during the hottest part of the day.
  • Install awnings over windows exposed to direct sunlight.
  • Don't place lamps, TV sets or other heat-producing devices beneath the wall-mounted indoor unit of your Trane AC. Rising heat from that equipment may cause the air conditioning system to overcool your house.

INSULATION

  • Make sure your home is properly insulated. This is the single most important step in conserving energy. Thermal insulation should be specified in terms of thermal resistance (R-values). R-30 (10") is recommended for ceilings, and R-11 (3-1/2”) for exterior walls and floors over unheated areas.
  • Infiltration of humid outside air is your heating and air conditioning system's worst enemy—it could account for 15% to 30% of air conditioning energy requirements. Find the places where air can sneak into the home and plug them with caulking, weather-stripping or plastic. Also, weather-strip and caulk around all entrance doors and windows.
  • Cut heat transfer through your windows by 40% to 50% with double-glazing (two panes of glass separated by a sealed air space) and low-e glass.
  • Use wood- or metal-frame storm windows even if single-glazed windows are high quality. The extra layer of glass and the layer of still air will cut heat transfer considerably.
  • Keep all windows and doors closed.
  • Remember that by increasing the glass area, you increase the amount of heat added in summer and lost in winter.
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