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Product Specifications:
| Item | Low Voltage Thermostat |
| Amps | 2.5A |
| Application | Heat And Cool |
| Backlit Type | Key Press Or Continuous With Common Wire |
| Changeover Type | Automatic |
| Compatible System Type | Electric Forced Air Furnaces, Gas Forced Air Furnaces, Heat Pump With Aux, Millivolt |
| Control Type | Push Button |
| Dehumidification Control | No |
| Differential Temp. | +0.5°F to +1.2°F |
| Differential Type | Adjustable |
| Digit Size | Easy Read |
| Display Type | Digital |
| Dual Transformer Compatible | Yes |
| Electrical Connection Type | Hardwired |
| Filter Change Reminder | No |
| Frequency | 50/60 Hz |
| Housing Color | Gray |
| Housing Material | Plastic |
| Humidification Control | No |
| Includes Positive Off | Yes |
| Key Pad Lockout | Yes |
| Max. Control Temp. | 99°F |
| Max. Operating Temp. | 150°F |
| Maximum Operating Humidity | 90% |
| Millivolt Compatible | Yes |
| Min. Control Temp. | 45°F |
| Min. Operating Temp. | -40°F |
| Minimum Operating Humidity | 0% |
| Mounting Direction | Horizontal |
| Mounting Location | Wall |
| Mounting Type | Surface Mount |
| Number Of Cooling Stages (conventional System) | 2 |
| Number Of Cooling Stages (heat Pump System) | 2 |
| Number Of Heating Stages (conventional System) | 2 |
| Number Of Heating Stages (heat Pump System) | 2 |
| Number Of Heating Stages - Heat Pump System | 1 |
| Number Of Zones | 1 |
| Overall Depth | 1 1/8" |
| Overall Height | 3 3/4" |
| Overall Width | 6" |
| Programming Capability | Non-Programmable |
| Shape | Rectangle |
| Stages | 2 H/2 C Conventional |
| Stages Heat Pump | 1 H/2 C Heat Pump |
| Stages Heating/cooling | 2 H/2 C Conventional, 1 H/2 C Heat Pump |
| Standards | Energy Aware |
| System Settings | Auto |
| Temp. Differential | 0.5°F to 1.2°F |
| Temperature Limiting | Yes |
| Temperature Scale | Celsius, Fahrenheit |
| Temporary Program Override | Yes |
| Temporary Temperature Hold | Yes |
| Terminal Designations | C, G, L, O/B6, RC, RH, W/E, W2, Y, Y2 |
| Thermostat Type | Low Voltage |
| Type | Low Voltage |
| Voltage | 20V AC |
Shipping Info:
| Ship weight (kg) | 0.27 |
| Ship height (cm) | 9.53 |
| Ship length (cm) | 2.86 |
| Ship width (cm) | 15.24 |
| Country of Origin | MX |
Product Variants
| Product | Model | Application | Terminal Designations | Control Type | Dual Transformer Compatible | Number Of Cooling Stages (heat Pump System) | Display Type | Programming Capability | Overall Width | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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1F83H-21NP | Heat Or Cool | C, E, G, L, O/B6, R, W2, Y | Slide Switch | No | 1 | Digital | Non-Programmable | 6" | €118.30 |
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EMERSON 1F85U-22NP Low Voltage Thermostat, Digital
€141.41 /unit

