a) Check the installation and operation of all equipment such as condenser and evaporator.
b) Check the proper fixing of all electrical connections.
c) Confirm that there are no leaks of refrigerant.
d) Confirm that the power supply is compatible with the electrical characteristics of the unit.
e) Check that the direction of rotation of the fans is correct.
f) Make sure that all service valves are in the correct operating position, open.
