Tightness Test split air conditioner system

Using Nitrogen (dry, pressurized, low cost and does not harm the atmosphere);

Use the throttle;

Do not exceed the limits indicated pressure;

Pretest with 10 kgf / cm 2 (using glycerin soap scum);

Test end of 20 kgf / cm 2 for 24 hours (note pressure and temperature).

For systems with R410A, pressurizing to 38.20 kgf / cm2 (550 psig);

Variation allowable 1.5 psi for every 1 ° C;