Honeywell T8775A,C The Digital Round® Non-Programmable Thermostats
The T8775A Thermostat provides 24V control of heating only systems. The T8775C Thermostat provides single-stage temperature control for 24V heating-cooling systems with manual changeover from heat to cool.
• Attractive styling complements any decor.
• Large easy-to-read display.
• Backlit display.
• No batteries required.
• The temperature setting is held permanently in memory in the event of a power failure.
• Powered through heating-cooling system controls.
• Manual changeover from heat to cool on T8775C model.
• Easy installation, set up and 5-minute compressor bypass saves time and increases installer productivity.
• Easily configurable by the use of DIP switches.
• F or C temperature display.
• Selectable heating cycle rates (1, 3, 6, 9 cph) for a variety of applications.
• Cooling cycle rate is fixed at 3 cph.
• Minimum off-time for compressors in the cooling mode.
Select a link under the "item" tab below to order.
| Cat # | Application | Includes | Mounting | color | System | Fan | Terminal Designations | Stages |
| T8775A1009 | Heat Only | Wallplate, resistor assembly, mounting screws and wall anchors. | Round | Premier White® | - | - | R, W | 1 Heat |
| T8775C1005 | 1 Heat/1 Cool Conventional and Heat Pumps with No Auxiliary Heat | Wallplate, resistor assembly, mounting screws and wall anchors. | Round | Premier White® | COOLOFFHEAT | AUTO ON | R, Rc, W, Y, G, O, B | 1 Heat/ 1 Cool |
| Dimensions, Approximate: | 3 11/16 in. diameter x 1 7/16 in. deep (94 mm diameter x 37 mm deep) |
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| Operating Humidity Range (% RH): | 5 to 90% RH (non-condensing) | ||
| Accuracy: | ±1 F (±0.5 C) | ||
| Cycles per Hour: | Adjustable 1, 3, 6, 9 | ||
| Switch Type: | Electronic | ||
| Current (Cooling): | 0.02A to 1.5A running; 6.0A inrush | ||
| Current (Heating): | 0.02A to 1.5A running, 3.5A inrush | ||
| Current (Fan): | 0.02A to 0.5A running, 2.5A inrush | ||
| Electrical Ratings: | 18 to 30 Vac | ||
| Frequency: | 60 Hz | ||
| Power Method: | Powered through system heating and cooling controls | ||
| Sensor Element: | Thermistor | ||
| Color | Premier White® | ||
| Mounting | Round | ||
