Alchem International Hvac Technician Interview Questions and Answers

HVAC has high pressure from the compressor to the condenser.

• High pressure is generated by the compressor and sent to the condenser.

• The pressure is typically around 300-400 PSI.

• The refrigerant then flows through the expansion valve and into the evaporator where it becomes low pressure.

• The low pressure refrigerant then returns to the compressor to start the cycle again.

The expansion valve operates on two pressures and temperatures - high and low.

• The expansion valve is responsible for regulating the flow of refrigerant into the evaporator.

• It operates on two pressures and temperatures - high and low.

• The high pressure and temperature are on the inlet side of the valve, while the low pressure and temperature are on the outlet side.

• The valve works by sensing the temperature and pressure o...read more

HVAC has high pressure from the compressor to the condenser.

• High pressure is generated by the compressor and sent to the condenser.

• The pressure is typically around 300-400 PSI.

• The refrigerant then flows through the expansion valve and into the evaporator where it becomes low pressure.

• The low pressure refrigerant then returns to the compressor to start the cycle again.

The expansion valve operates on two pressures and temperatures - high and low.

• The expansion valve is responsible for regulating the flow of refrigerant into the evaporator.

• It operates on two pressures and temperatures - high and low.

• The high pressure and temperature are on the inlet side of the valve, while the low pressure and temperature are on the outlet side.

• The valve works by sensing the temperature and pressure o...read more