MULTI SPLIT AC AND CAR AIR CONDITIONING - Quiz

1) What is the effect of operating the compressor under 5 of Hg vacuum during pump down process?

Pumps oil to condenser Prevent motor damage in dome Prevent leakage in service valve Prevent piston damage

2) What is ensured before mounting condenser in car AC?

Accessibility for future service Condenser top line to TEV inlet Condenser in line with car radiator Condenser bottom line to discharge line

3) Why CFC 12 system is replaced by HFC 134a system in car AC?

Increase ODP Increase GWP GWP becomes zero ODP becomes zero

4) What is the cause of water leakage in indoor unit of multi split AC?

Efficient water pump Drain line not properly installed Condenser water pump defective Over flow of water from cooling tower sump

5) What is the reason for no cooling effect in car AC?

Air in the system Excess of refrigerant Refrigerant leaked Moisture in the system