Cooling System Performance
For maximum performance of the cooling system, operating temperatures and pressure should be checked. Superheat should be determined at Standard ARI test conditions of 82°F outdoor and 80°F indoor dry bulb/67°F wet bulb. If superheat measured deviates from values found in Table 4, refrigerant charge should be adjusted accordingly for maximum performance.
Suction Superheat
| Suction Superheat | |
Size | @ARI Conditions | |
82° OD - 80° IDDB/67° IDWB | ||
|
|
|
| R22 | 410A |
|
|
|
24 | 22° | 15° |
|
|
|
30 | 20° | 15° |
36 | 20° | 12° |
|
|
|
42 | 20° | 12° |
48, 60 | 20° | 10° |
|
|
|
Table 4
Page 8 of 13 | Issue 0902 |
