System Relay: Labor Times
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| Auxiliary Heater & AC | ||||
| Relay | 0.5 | 0.4 | B | |
| Air Conditioner | ||||
| Constant Run Relay | 0.4 | 0.3 | B | |
| Cut-Off Relay | 0.3 | 0.2 | B |
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| Auxiliary Heater & AC | ||||
| Relay | 0.5 | 0.4 | B | |
| Air Conditioner | ||||
| Constant Run Relay | 0.4 | 0.3 | B | |
| Cut-Off Relay | 0.3 | 0.2 | B |