The Honeywell ST9120U1003 universal control board for gas furnaces monitors the thermostat for heat cool and fan and runs the induced draft blower motor and circulating fan (up to two speeds). The Honeywell ST9120U1003 also monitors limit Switches and energizes ignition control.
This item has been replaced by the ST9120U1011. Click here to go to the replacement item
Features
The Honeywell ST9120U1003 central appliance wiring point simplifies appliance assembly and service. Fixed or field-adjustable heat fan on delay; field adjustable heat fan off delay.
Product Specifications
| Description | Twinning capability, with 5 amp. fuse. |
| Application | Integrates control of combustion blower and circulating fan operations for a gas warm air appliance |
| Electrical Ratings | 18 to 30 Vac |
| Frequency | 60 Hz |
| Heat Fan On Delay | adj.; set at 30 sec |
| Heat Fan Off Delay | adj.; set at 140 sec |
| Cool Fan On Delay | adj. 4-30 sec, (set at 4 sec) |
| Cool Fan Off Delay | fixed 30 sec |
| Temperature Range, Ambient (F) | -40 F to +175 F |
| Temperature Range, Ambient (C) | -40 C to +79 C |
| Approvals, Underwriters Laboratories Inc | Listed: Report MP466 |
| Approvals, Canadian Standards Association | Certified: File No. LR95329-17 |