Honeywell Low Voltage Time/Temperature Defrost Controller
ST74A1053
Categories
Description
Low voltage time/temperature defrost controller for heat pumps. Features Reset the defrost cycle by remote contact closure. Mounts in outdoor section of heat pump. Test pins speed up defrost cycle for easy operational checkout. Reliable relay switch output. Moisture-protective board coating. Specifications Time Off: Selectable: 50/70/90 min. Time On: 10 min. (factory-set) Increased Time Off: None Operating Temperature Range: -40 F to 158 F Electrical Connections: 1/4 in. quick-connect male terminals
Manuals
# | Title | Languages | Pages | Updated |
---|---|---|---|---|
1 | Install Instructions | EN | 4 | 2022-03-22 |
2 | Submittal Sheet | EN | 6 | 2022-03-22 |