Verify SW1 Dip Switch Settings
Prior to verifying the charge, it is recommended to locate the SW1 dip switch located on the Main board and checking dip switch locations match unit model tonnage.
- 090 - 7.5 Ton
- 102 - 8.5 Ton
- 120 - 10 Ton
- 150 - 12.5 Ton
Pressure chart
Standby
| Outdoor ambient temperature °F | < 32° | 32° to 50° | 51° to 68° | 69° to 104° | 105° to 120° | > 120° | |
|---|---|---|---|---|---|---|---|
| Discharge and suction pressure (A & B) | PSI | 43-145 | 101-174 | 145-188 | 174-217 | 188-232 | 217-261 |
Cooling
| Outdoor ambient temperature °F | < 32° | 32° to 50° | 51° to 68° | 69° to 104° | 105° to 120° | > 120° | |
|---|---|---|---|---|---|---|---|
| Discharge temperature (A & B) | °F | 122°F - 167°F | 122°F - 167°F | 122°F - 167°F | 131°F - 185°F | 152.6°F - 197.6°F | 158°F - 203°F |
| Discharge pressure (A & B) | PSI | 217 - 435 | 217 - 435 | 217 - 435 | 261 - 522 | 377 - 565 | 478 - 594 |
| Suction pressure (A & B) | PSI | 72 -116 | 72 - 145 | 87 - 145 | 101 - 159 | 130 - 174 | 101 - 188 |
WARNING:
Information in this article is intended for use by individuals possessing adequate backgrounds of electrical and mechanical experience and who comply with all federal, state, and local laws, rules, orders, or regulations related to the installation, service, or repair of a heating or central air conditioning product. Any attempt to install, service, or repair a heating or central air conditioning product may result in personal injury and/or property damage. The manufacturer or seller cannot be responsible for the interpretation of the information contained herein, nor can it assume any liability in connection with its use.