b) Correct the LEV separately by temperature difference “ RT” between main/sub indoor coil thermistor.
RT | LEV opening | |
correction (pulse) | ||
| ||
10.8[ RT | 2 | |
7.2[ RT< 10.8 | 1 | |
RT<7.2 | 0 |
In addition, decrease the target discharge temperature corresponding RT.
RT | Temperature to be | |
decreased (˚F) | ||
| ||
|
| |
10.8[ RT | 18 | |
7.2[ RT< 10.8 | 9 | |
RT<7.2 | 9 |
3-3. OPERATIONAL FREQUENCY RANGE
Number of | Capacity | COOL (Hz) | DRY |
| HEAT (Hz) |
| ||
operating | code |
|
|
|
|
|
| |
unit | Min. | Max. | (Hz) | Min. | Max. | Defrost | ||
| 1, 2, 3, 4 | 20 | 65 | 25 | 30 | 63 | 63 | |
| 5, 6 | 20 | 65 | 25 | 30 | 63 | 63 | |
| 7, 8 | 20 | 65 | 30 | 30 | 63 | 63 | |
1 | 9, 10 | 20 | 94 | 75 | 30 | 92 | 92 | |
| 11, 12 | 20 | 94 | 75 | 30 | 92 | 92 | |
| 13, 14 | 20 | 94 | 75 | 30 | 92 | 92 | |
| 15 or above | 30 | 94 | 75 | 30 | 92 | 92 | |
| 2, 3, 4, 5, 6, 7 | 30 | 94 | 52 | 58 | 92 | 92 | |
| 8, 9, 10 | 30 | 94 | 52 | 58 | 92 | 92 | |
2 | 11, 12, 13 | 30 | 94 | 52 | 58 | 92 | 92 | |
14, 15, 16 | 30 | 94 | 52 | 58 | 92 | 92 | ||
| ||||||||
| 17, 18, 19, 20, 21 | 30 | 94 | 94 | 58 | 92 | 92 | |
| 22, 23, 24 or above | |||||||
|
|
|
|
|
|
|
Number of | Capacity | COOL (Hz) | DRY |
| HEAT (Hz) |
| ||
operating | code |
|
|
|
|
|
| |
unit | Min. | Max. | (Hz) | Min. | Max. | Defrost | ||
| 1, 2, 3, 4 | 15 | 58 | 20 | 22 | 37 | 37 | |
| 5, 6 | 15 | 58 | 20 | 22 | 37 | 37 | |
| 7, 8 | 15 | 58 | 25 | 22 | 37 | 37 | |
1 | 9, 10 | 15 | 62 | 44 | 22 | 90 | 80 | |
| 11, 12 | 15 | 62 | 44 | 22 | 90 | 80 | |
| 13, 14 | 15 | 62 | 44 | 22 | 90 | 80 | |
| 15 or above | 15 | 65 | 44 | 22 | 90 | 80 | |
| 2, 3, 4, 5, 6, 7 | 24 | 80 | 31 | 35 | 58 | 58 | |
| 8, 9, 10 | 24 | 80 | 31 | 35 | 58 | 58 | |
2 | 11, 12, 13 | 24 | 80 | 31 | 35 | 90 | 80 | |
14, 15, 16 | 24 | 80 | 31 | 35 | 94 | 80 | ||
| ||||||||
| 17, 18, 19, 20, 21 | 24 | 80 | 59 | 35 | 94 | 80 | |
| 22, 23, 24 or above | |||||||
|
|
|
|
|
|
| ||
| 3, 4, 5, 6, 7, 8, 9, 10 | 52 | 90 | 65 | 39 | 94 | 80 | |
| 11, 12, 13, 14, 15 | |||||||
|
|
|
|
|
|
| ||
3 | 16, 17, 18, 19, 20 |
|
|
|
|
|
| |
21, 22, 23, 24, 25 | 52 | 90 | 65 | 39 | 94 | 80 | ||
| ||||||||
| 26, 27, 28, 29 | |||||||
|
|
|
|
|
|
| ||
| 30 or above |
|
|
|
|
|
|
27