Overview
The Johnson Controls T-4002-9009 is a high-volume output, single-temperature pneumatic thermostat designed for industrial and commercial HVAC applications. This reverse-acting controller provides a proportional output air signal to modulate pneumatic devices, such as valves and damper actuators, in response to temperature fluctuations. It is specifically designed for horizontal mounting and features a Celsius temperature scale for precise environmental monitoring.
Features
- Reverse-acting operation that modulates controlled devices as space temperature changes
- High-volume air flow capacity of 400 SCIM for efficient system response
- Bi-metallic sensing element for durable and accurate temperature detection
- Two-pipe configuration compatible with standard pneumatic distribution systems
- Horizontal orientation suitable for installations with vertical height constraints
- Adjustable sensitivity settings to fine-tune control system performance
- Barbed fittings for secure connection to 5/32 inch O.D. tubing
Specifications
- Brand: Johnson Controls
- Model: T-4002-9009
- Action Type: Reverse Acting
- Mounting Style: Horizontal
- Temperature Range: 12 to 30 Degrees Celsius
- Supply Pressure: 13 to 25 psig
- Air Consumption: 20 SCIM
- Output Flow Capacity: 400 SCIM
- Connection Type: 5/32 inch Barbed
- Dimensions: 2.1 inches Height x 3.1 inches Width x 1.8 inches Depth
Applications
- Commercial heating and cooling system management
- Control of pneumatic valves and damper actuators in building automation
- HVAC installations in schools, hospitals, and office buildings
- Space temperature control requiring metric readings and horizontal mounting
- Replacement or maintenance of existing T-4000 series pneumatic thermostats


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