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| Application | Integrates control of all burner and circulator fan operations for an oil furnace |
|---|---|
| Approvals and Standards | UL Listed: Report MP466|CSA Certified: File No. LR95329-21 |
| Heat Fan Off Delay Timing | Adjustable 60, 120, 150, 180 sec (set at 120 sec) |
| Heat Fan On Delay Timing | Adjustable 30, 60 sec (set at 30 sec) |
| Cool Fan Off Delay Timing | Adjustable 30, 60 sec (set at 30 sec) |
| Cool Fan On Delay Timing | Adjustable 4, 30 sec (set at 4 sec) |
| Current Draw | 4 VA at 24 V AC |
| Electrical Ratings | 18 to 30 Vac |
| Power Supply Frequency | 50 Hz|60 Hz |
| Operating Voltage | 18 to 30 Vac |
| Compatible With | Gas warm air appliance|Oil furnace |
| Ambient Operating Temperature (Max) | 150 °F|66 °C |
| Ambient Operating Temperature (Min) | -40 °F|-40 °C |
The ST9103 electronic fan timer integrates control of all burner and circulator fan operations in an oil furnace. This replacement control features a central wiring point for most of the electrical components in the furnace, making installation easier in multiple systems. The basic purpose of the ST9103 electronic fan timer is to monitor the thermostat for heat, cool, and fan demands while running the oil burner primary control—and up to a two-speed circulating fan—as required. This model also monitors a limit switch string, which energizes the circulating fan whenever the limit switch opens.
- Replaces 40+ existing Resideo electronic fan timers
- Instruction sheet supplies full cross reference and wiring guide
- Interface harnesses for simple conversion
- Integrates control of all combustion blower and circulating fan operations in gas warm-air appliance
- Replaceable fuse
- DIP switch selectable heat and cool delay on and off times
- LED lights for easy diagnostics
- Electronic air cleaner and humidifier terminal connections
- Continuous low speed indoor air circulation
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