Senior Aircondition Technician Interview Questions and Answers

The performance air flow switch is a device used in air conditioning systems to monitor and control the airflow.

• It is typically installed in the ductwork of the air conditioning system.

• The switch measures the air velocity or pressure and sends a signal to the control system.

• It helps ensure that the air flow is within the desired range for optimal performance and efficiency.

• If the air flow falls below or exceeds the set limits, the switch can trigger an alarm or shut down the ...read more

Maintenance for E TS involves regular inspections, cleaning, and repairs to ensure optimal performance.

• Regular inspections are conducted to identify any issues or potential problems.

• Cleaning of filters, coils, and other components is done to remove dirt and debris that can hinder performance.

• Repairs are carried out as needed to fix any malfunctions or faulty parts.

• Maintenance also includes lubrication of moving parts, checking electrical connections, and calibrating controls....read more

R22 back pressure is the pressure exerted by the refrigerant R22 in the low-pressure side of an air conditioning system.

• R22 back pressure is measured in pounds per square inch (psi).

• It is important to maintain the correct back pressure to ensure proper cooling and efficiency of the system.

• The back pressure is typically lower than the high-side pressure in the system.

• If the back pressure is too high, it may indicate a restriction or blockage in the system.

• Monitoring and adjust...read more