What are the main components of an HVAC system?

The main components include the air handler, ductwork, evaporator coil, heat pump, and thermostat.

How often should HVAC systems be serviced?

HVAC systems should be serviced bi-annually to maintain efficiency and address any potential issues.

Refrigeration systems are used in food storage, pharmaceutical manufacturing, and chemical processing.

Regular maintenance, upgrading to energy-efficient units, and using programmable thermostats can improve energy efficiency.