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T8400C | Honeywell Standard Electronic Thermostat for 24V Single-Stage Heat/Cool Systems
- Regular price
- $109.00
- Sale price
- $109.00
- Regular price
-
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Product Description P/N: T8400C
Description
The Honeywell T8400C is a standard electronic thermostat designed for single-stage, non-programmable control of 24-volt heating and cooling systems. It provides straightforward manual temperature adjustment and mode changeover without complex programming. The T8400C offers dependable operation for applications requiring simple and effective climate control.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Honeywell |
| Category | Controls & Indicators |
| Part Number | T8400C |
| Subcategory | Thermostat |
| System Type | 24V Single-Stage Heat/Cool |
| Type | Non-Programmable Electronic Thermostat |
| Dimensions | 4.6″ H × 2.75″ W × 1.8″ D |
| Weight | 0.24 lbs |
| Power LED (Green) | 14–35 VDC, 12 mA max |
| Alarm LED (Red) | 2.8–32 VDC, 12 mA max |
| Alarm Response Time | ≤ 40 seconds |
| Operating Temperature | –10°C to 60°C (14°F to 140°F) |
| Humidity Rating | 95% RH non-condensing max |
| Mode Control | Manual heat/cool changeover |
| Control Style | Manual electronic temperature control |
| Application | Standard HVAC temperature regulation |
Information About T8400C
The T8400C is a manual, single-stage electronic thermostat engineered for compatibility with 24V heating and cooling equipment. Its construction features distinct green and red LED indicators for power and alarm monitoring, supporting clear system status identification. The thermostat functions without scheduling or automated control, making it suitable for environments where simple user-operated adjustment is preferred. Typical applications include basic HVAC installations requiring non-programmable functionality, stable performance across a broad temperature range, and reliable operation under high-humidity conditions.
Key Features
- Single-stage heat/cool control: Designed for 24V HVAC systems requiring basic temperature regulation.
- Non-programmable interface: Provides manual control without scheduling or automation.
- Power and alarm LEDs: Green power LED and red alarm LED offer immediate system status indication.
- Wide operating range: Performs reliably from –10°C to 60°C (14°F to 140°F).
- High humidity tolerance: Operates in environments up to 95% relative humidity (non-condensing).
- Compact design: Small footprint supports easy wall-mount installation.
- Manual mode changeover: Allows direct switching between heating and cooling modes.
- Lightweight construction: Weighs only 0.24 lbs for simplified installation.
The T8400C delivers the reliability and precision required for straightforward single-stage HVAC temperature control.
Description
The Honeywell T8400C is a standard electronic thermostat designed for single-stage, non-programmable control of 24-volt heating and cooling systems. It provides straightforward manual temperature adjustment and mode changeover without complex programming. The T8400C offers dependable operation for applications requiring simple and effective climate control.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Honeywell |
| Category | Controls & Indicators |
| Part Number | T8400C |
| Subcategory | Thermostat |
| System Type | 24V Single-Stage Heat/Cool |
| Type | Non-Programmable Electronic Thermostat |
| Dimensions | 4.6″ H × 2.75″ W × 1.8″ D |
| Weight | 0.24 lbs |
| Power LED (Green) | 14–35 VDC, 12 mA max |
| Alarm LED (Red) | 2.8–32 VDC, 12 mA max |
| Alarm Response Time | ≤ 40 seconds |
| Operating Temperature | –10°C to 60°C (14°F to 140°F) |
| Humidity Rating | 95% RH non-condensing max |
| Mode Control | Manual heat/cool changeover |
| Control Style | Manual electronic temperature control |
| Application | Standard HVAC temperature regulation |
Information About T8400C
The T8400C is a manual, single-stage electronic thermostat engineered for compatibility with 24V heating and cooling equipment. Its construction features distinct green and red LED indicators for power and alarm monitoring, supporting clear system status identification. The thermostat functions without scheduling or automated control, making it suitable for environments where simple user-operated adjustment is preferred. Typical applications include basic HVAC installations requiring non-programmable functionality, stable performance across a broad temperature range, and reliable operation under high-humidity conditions.
Key Features
- Single-stage heat/cool control: Designed for 24V HVAC systems requiring basic temperature regulation.
- Non-programmable interface: Provides manual control without scheduling or automation.
- Power and alarm LEDs: Green power LED and red alarm LED offer immediate system status indication.
- Wide operating range: Performs reliably from –10°C to 60°C (14°F to 140°F).
- High humidity tolerance: Operates in environments up to 95% relative humidity (non-condensing).
- Compact design: Small footprint supports easy wall-mount installation.
- Manual mode changeover: Allows direct switching between heating and cooling modes.
- Lightweight construction: Weighs only 0.24 lbs for simplified installation.
The T8400C delivers the reliability and precision required for straightforward single-stage HVAC temperature control.