5-23. Analysis of Discrepancies.
If actual pressure-temperature relationships differ from those shown in Table
5-2, consider the following reasons, and take appropriate action.
If pressures are too low:
Check for leaks in accordance with
paragraph 5-16, repair, recharge the system in accordance with
paragraph 5-18 and repeat the pressure test in accordance with
paragraphs 5-19 thru 5-24.
If pressures are too high:
Close the suction service valve,remove
the pressure gauge, and bleed off the appropriate amount of refri-
gerant. Repeat the pressure test.
If discharge pressure is extremely high and suction pressure is
extremely low, blockage may exist in the refrigeration system.
Troubleshoot, correct the trouble, recharge if necessary, and repeat
t h e p r e s s u r e t e s t.