Working of a Condenser

A condenser is a heat exchanger that allows liquids to condense. They lose heart and transition from a gaseous to a liquid state. There is an ODU (outdoor unit) in an air conditioner where evaporated refrigerant flows and loses heat to the atmosphere, changing its state from vapor to liquid. Call an expert for air conditioning repair in Denver, CO, if you are having any issues with your condenser and want it to work correctly.

Any refrigeration system would be incomplete without a condenser. In a typical refrigerant condenser, the refrigerant is superheated when it enters. It is de-superheated before being condensed by transferring heat to an external medium. Expert Denver HVAC contractorssay that depending on the temperature of the external medium and condenser design, the refrigerant may exit as a saturated or subcooled liquid.

Types of Condensers

Air-cooled Condenser

A finned continuous tube coil is used in condensers in which the vapor from the compressor discharge enters the coil while the liquid leaves the bottom and flows into receivers beneath the base. The less the ambient air temperature, the less power is required for a given capacity.

Water-cooled Condenser

Water cools the hot refrigerant and turns it into a liquid in this type of condenser. The higher the condensing temperature and the electricity cost, the less water is used. Water-cooled condensers are used where there is enough water to cool the coolant. Water flows must be balanced to produce the most insufficient water and electricity costs.

Evaporative Condenser

According to air conditioning installation in Denver, CO experts, evaporative condensers combine the functions of a condenser and a cooling tower in one unit. A pump draws water from tanks and sprays it onto the refrigerant coil through a spray nozzle. In the case of cold water, no water may be required, and the unit will operate as an air-cooled condenser.

The Function of a Condenser

  • The condenser is a device that converts hot gas discharged from a compressor into a liquid that can be used in an evaporator. 
  • To cool the condenser and ensure condensation, the heat is transferred to another medium, such as water or air. 
  • Specialists performing AC repair in Denver, CO  explain that if the condenser were not used, we would have to compress the steam to the boiler pressure, which would necessitate a large compressor. 
  • A small pump is needed to compress the liquid to boiler pressure if a condenser is used instead of a vapor generator. 

Working of Condenser

  • The refrigerant vapor is condensed into liquid refrigerant by the condenser. According to HVAC companies in Denver, CO, it’s a heat exchanger that releases heat into the atmosphere. 
  • Because the refrigerant undergoes a phase change, pressure and temperature remain constant before and after condensation. A condenser converts a high-pressure, high-temperature refrigerant vapor to a high-pressure, high-temperature liquid refrigerant. 
  • The hot gas is compressed into a liquid and removed through the condenser coil by the compressor. It converts the gas to a liquid, which is then pumped to the evaporator coil and released through an expansion valve, flashing it back to a cold gas, which picks up the heat from the evaporator coil, and the cycle repeats.


If you want efficient AC replacement in Denver, AZLogic HVAC/R can help by providing budget-friendly and trustworthy services. Call us at 720-863-7940 or drop us an email here to learn more about condensers or anything related to AC servicing.

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