HVAC (heating, ventilation and air conditioning) is the technology that helps control the temperature of any enclosed space within a house or automobile. This technology is used, more often than not, for centralized air conditioning. HVAC systems have ducts that draw the air through return-air grilles and circular or rectangular vents to throw back fresh air into the enclosed space. HVAC system follows quite a complex process of operation. Therefore makes HVAC repair equally challenging.
In a HVAC system the refrigeration starts with gas, which the compressor heats up the gas to reach an extreme temperature. The hot gas is then passed through a condensing coil and converted into liquid. The liquid is then moved to an evaporating coil at a controlled rate and low pressure. Once the liquid starts evaporating it absorbs heat from outside and this entire process is repeated over and over again for maintaining the temperature.
HVAC repair entails keeping the ducts in right shape as cooling through HVAC system depends heavily on proper working of ducts. There are several kinds of ducts used in different types of air conditioning system:
1. Reverse cycle air conditioners are made of ducts that are covered 2 inches at the core. Duct insulation should not be less than 2 inches or else it will lose its impact faster.
2. Evaporative air conditioners have only 1 inch of insulation around the ducts. Since the air is quite volatile in the evaporative system, the chance of change of temperature is least. However, this insulation should be strictly maintained. Any compromise could lead to HVAC repair in the long run.
3. It should be checked that the insulation material provided is made of polyester and does not have any other material that can catch fire fast.
It's the ductwork that needs to be taken care of while installing an air conditioning system. Ducts could be an ideal place for bacteria to grow. It can lead to unhealthy living and often cause serious diseases.
Learn more on: Signs That Your AC Needs Repair