HVAC Maintenance Check List
Athena Air will keep your HVAC system running strong with an inspection that includes:
Inspect all belts and replace as needed
Like HVAC filters, belts are a critical part of HVAC maintenance. It’s very common for a belt to be misaligned due to the vibration of the unit. If a belt is misaligned and loosens up, there will be a substantial loss of torque and can wear down the pulley wheel. Repair bills can be avoided with the simple act of adjusting or replacing a belt, this will not only save you money, but extend the life of your unit.
Lubricate all fans and motor bearings
All moving parts in your HVAC system require regular lubrication to prevent friction in parts such as a motor. Increased friction leads to the parts working harder increasing energy use while also wearing down the part.
Inspect the refrigerant operating pressures & visually check for refrigerant leaks
Maintaining a consistent level of refrigerant is the key to proper operation of any HVAC system. If a system is missing refrigerant while the unit is running, the compressor will get damaged which can be expensive to repair. A lack of refrigerant can cause a system failure in 2 ways. The first is that the low pressures will cause the compressor to freeze up. The other form of failure is simply due to the fact that the compressor requires a certain amount of refrigerant to run properly.
Inspect condensate pump, drain pan, clean out drain lines using CO2, & Supply pan with acid tablets
Most HVAC service calls we receive are for leaking Air Conditioning units. The main reason a unit leaks is due to a clogged drain line. A professional HVAC company will put acid tablets in your drain pan to help reduce the future buildup of dirt, & mold.
Check & tighten electrical connections
Lots of electrical parts burn due to loose connections. We also come across plenty of service calls that had units shut off because the electrical connection in the thermostat was loose.
Calibrating safety controls and temperature controls
One wrong setting can cause serious temperature issues. Controls should be checked & calibrated at least twice a year to prevent HVAC breakdowns.
Take electrical readings on all motors and compressors
If a compressor or motor is on its way out, we can identify this during our maintenance visit, the item can then be replaced before the summer months, Being proactive is more cost effective than being reactive.
Inspect & Clean Evaporator & Condenser Coils.
Both your evaporator & condenser coils are a key component of any AC system. When they are cleaned, your HVAC system will operate at peak efficiency. However, when your coils are dirty, they can cause many problems including:
- Increased Operating Costs: When your coil become dirty it cannot provide adequate or designed heat transfer which will cause higher discharge pressure. This will require more electricity, which translates into increased energy costs. In fact, dirty coils can increase energy consumption 37% over clean coils.
- Reduced Cooling: As the dirt collects on the coils it restricts heat transfer causing the compressor to work harder. This adds more heat to the system and raises the head pressure as much as 75% which can result in a loss of up to 30% of the systems cooling capacity. This loss is most noticed on the hottest days when cooling is needed the most.
- Shorten Equipment Life: Higher operating pressures and temperatures caused by dirty coils can reduce the equipment’s life expectancy. The higher system pressure and temperature can lead to the breakdown of the compressors lubricant. In addition acid can occur, leading to an acid burnout. This will lead to equipment failure. Compressor failure means no cooling, and costly repairs.
- Affect Air Quality: The evaporator coil presents major issues that go way beyond the issues we previously discussed. A dirty evaporator coil creates a breeding ground for bacteria and mold that can impact the indoor air quality.
Please call today to discuss your maintenance requirements