A coolant pump is part of an HVAC unit that heats, cools, and filters air. In air conditioning, the pump circulates refrigerant that turns into vapor and is compressed, then converted back into liquid by the condenser. The process repeats through the expansion valve. Refrigerators and freezers use a similar process to keep food cold.
A coolant pump is part of a heating, ventilation and air conditioning (HVAC) unit. An HVAC unit is responsible for heating and cooling the interior of buildings. The unit can also filter fresh air drawn in from outside and expel indoor air to reduce contamination levels. Other refrigeration equipment, such as refrigerators and freezers, also use a coolant pump.
An air conditioning system works by cooling the air that is pumped in and circulated. A coolant pump is part of that system. The liquid refrigerant is found at the bottom of the evaporator where it flows up and over a series of cooling coils. As the liquid flows through this cooling loop, it absorbs heat and begins to boil. Once it boils, it turns into a vapor known as Freon.
The steam is then pulled into equipment known as a compressor via suction pressure on the inlet lines. Refrigerant pressure builds up in the compressor as the refrigerant vapor also absorbs heat from mechanical movements within the refrigerant pump and other moving parts. This stream of vapor becomes extremely hot which also increases the pressure within the compressor. As the pressure builds, the compressor dumps the vapor through the outlet line which moves it to the condenser.
The condenser is able to remove the accumulated heat and convert the vapor back into liquid. It does this by blowing hot air out and holding the liquid by moving it over the expansion device. The expansion device, known as a thermostatic expansion valve (TEV), regulates the temperature and pressure at which liquid refrigerant is returned to the coolant pump. There is a sensor bulb inside the TEV that monitors the temperature.
Using a suction line, the liquid returns to the coolant pump to restart the process. The coolant pump then pushes the liquid through the evaporator. This allows fresh air to blow into the interior space using a fan attached to the rear of the evaporator.
The coolant pump on refrigerators and freezers works in much the same way. Coils on the back of the system pass liquid refrigerant through them, which in turn heats the liquid and turns it into vapor. A compressor creates pressure which is released through the expansion valve. Cooling turns the vapor into liquid and the process begins again. This continuous cycle of heating and cooling is what keeps the food inside cold.
Protect your devices with Threat Protection by NordVPN
