Honeywell LP907A1002 Thermostat

The Honeywell LP907A1002 is a professional-grade airstream insertion pneumatic thermostat engineered for precise proportional control of HVAC pneumatic valves and damper actuators. This direct-acting pneumatic controller features a single setpoint design with a versatile 40-140°F setpoint range, making it an essential component for monitoring discharge air in unit ventilators and air handling units. Utilizing a rugged 18 3/4-inch Invar rod and brass tube sensing element, the unit provides high-accuracy temperature detection directly within the ductwork. The single-pipe pneumatic system includes a standard 1/4-inch barb fitting for seamless integration with existing poly tubing. With a field-adjustable 10-70°F throttling range, technicians can fine-tune system response to prevent hunting and ensure stable discharge temperatures. Designed for vertical or horizontal mounting, the LP907A1002 is a reliable drop-in replacement for legacy Honeywell pneumatic controls, maintaining consistent branch pressure signals in demanding commercial environments.

Key Benefits

• Direct-acting proportional control ensures accurate modulation of heating and cooling components based on real-time airstream conditions.
• Durable rod-and-tube construction utilizes an Invar sensing element for long-term thermal stability and resistance to mechanical fatigue.
• Wide throttling range provides the flexibility needed to stabilize airflow and prevent rapid cycling of pneumatic actuators.
• Flexible duct mounting is simplified with included sheet metal fittings, allowing for varied insertion depths in high-velocity streams.
• Universal compatibility with 1/4-inch O.D. plastic tubing allows for straightforward integration into Honeywell building automation systems.

Common Questions

Is the LP907A1002 compatible with 2-pipe systems?
No, this is a single-pipe pneumatic thermostat. It requires an external restrictor (ordered separately) in the supply line to facilitate proper branch pressure signaling to the controlled device.

What is the difference between LP907A1002 and LP907A1002/U?
These units are functionally identical; the "/U" suffix denotes a "Universal" trade-packaged version often used for field replacement, maintaining the same technical specifications and hardware.

Can this thermostat be used in return air applications?
While primarily used for discharge air control and low-limit monitoring, it can be installed in return air ducts provided the 18 3/4-inch sensing element is adequately exposed to the main airstream for accurate sampling.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.