Non-Programmable Mechanical Thermostat, Round, Heat Only, 40-90 Degree F
29 Available At All US Supply Locations
Honeywell T87K1007 Thermostat – Non-Programmable, 24V Manual Heat-Only Control
The Honeywell T87K1007 is a low-voltage, manual thermostat designed for single-stage heating systems. Built with a familiar round form factor and mechanical interface, this non-programmable model offers dependable control for forced air, hydronic, or electric heat systems operating on 24 VAC. Its mercury-free design ensures compliance with modern safety standards, while the mechanical dial provides a tactile, straightforward interface for temperature adjustment.
Key Product Features
- Application: Designed for heat-only systems; compatible with gas, oil, or electric furnaces and boilers
- Manual Control: Simple rotary dial enables direct user temperature setting
- Sensor Type: Electronic thermistor for accurate ambient temperature detection
- System Type: Suitable for single-stage 24V heating systems (no cooling control)
- Mercury-Free: Uses electronic switching for safe, code-compliant operation
Technical Specifications
- Model Number: T87K1007/U
- Voltage Rating: 20–30 VAC, 60 Hz
- Terminal Designations: R, W, Y
- Control Range: 40°F to 90°F (4.5°C to 32°C)
- Humidity Tolerance: 5% to 90% RH (non-condensing)
- Mounting: Wall-mount, horizontal or vertical orientation
- Dimensions: 3-11/16" diameter × 1-3/4" depth
Installation Guidelines
This thermostat is intended for use in standard 24V heat-only applications. It mounts directly to a wall or standard junction box and connects via low-voltage terminal wiring. Ensure transformer capacity and system compatibility before wiring. Level mounting is recommended to maintain temperature accuracy. No batteries required.
Field Applications
- Residential forced air or hot water heating
- Light commercial heat-only systems
- Retrofits requiring non-programmable thermostats with mechanical interface
Contractor Considerations
- Manual operation reduces callbacks from user misprogramming
- Mechanical interface is ideal for environments requiring basic, intuitive controls
- Backplate and installation hardware included
Specifications
| Weight | 0.400000 |
|---|---|
| Length | 1 |
| Width | 3-11/16 in |
| Item Type | Thermostats |
| Brand | Honeywell |
| MPN | T87K1007/U |
| Sub Type | Mechanical Nonprogrammable Conventional Systems |
| Warranty | 5 Years |
| Amperage Rating | 0.02-1 A |
| Color | Premier White® |
| Connection Type | Hardwired |
| Control Range | 40 deg to 90 deg F |
| Domestic/Import | Import |
| Fan Switching | No |
| Height | 3-11/16 in |
| Mounting Type | Round |
| Number of Stages | 1 Heat |
| Power Source | Battery Assisted Power Stealing |
| Switch Type | Relay |
| System Switching | No |
| Thermostat Type | Low Voltage |
| Item Returns | This item can be returned |