T991A2044

The Honeywell T991A2044 Proportional Temperature Controller is a versatile and reliable device designed for temperature control applications within a temperature range of 30 F to 70 F (0 C to 21 C). This controller is ideal for use in various industries, including HVAC, refrigeration, and process control.

The controller features a 5ft (1.5m) long, 10AWG copper temperature sensing element, allowing for accurate temperature measurement and control. The controller's proportional control action provides smooth and continuous temperature adjustment, ensuring stable and consistent temperature conditions.

The Honeywell T991A2044 is designed with a large, easy-to-read backlit display that shows the setpoint temperature, process temperature, and controller output. The controller also includes a high-resolution, LED bar graph that indicates the controller output percentage.

This temperature controller comes with a number of user-friendly features, including adjustable deadband, adjustable output limit, and adjustable reset time. These features allow for fine-tuning of temperature control and optimizing system performance.

The controller is housed in a rugged and durable enclosure, designed to withstand harsh industrial environments. The device is also UL listed, ensuring compliance with safety standards.

The Honeywell T991A2044 Proportional Temperature Controller includes a number of connection options, including 0-10V analog output, 4-20mA current output, and a relays contact. These outputs allow for easy integration with various control systems and automation applications.

Overall, the Honeywell T991A2044 Proportional Temperature Controller is a high-performance and versatile device, suitable for a wide range of temperature control applications within the specified temperature range. Its accurate temperature measurement, smooth control action, and user-friendly features make it an excellent choice for reliably maintaining temperature conditions in various industries.

Pros and Cons of Buying Honeywell T991A2044 Proportional Temperature Controller

The Honeywell T991A2044 Proportional Temperature Controller is a popular choice for temperature control applications in the industrial and commercial sectors. In this analysis, we'll discuss the advantages and disadvantages of purchasing this controller.

1. Wide Temperature Range: This temperature controller can maintain temperatures between 30 F and 70 F (0 C to 21 C), making it suitable for various applications.

2. Copper Transmission Line: The use of copper as the transmission line material offers better conductivity, which results in faster response times and improved temperature control accuracy.

3. Proportional Control: This controller uses proportional control, allowing for more precise temperature regulation by adjusting the output in proportion to the error signal.

4. Cost-Effective: The Honeywell T991A2044 is considered cost-effective compared to more advanced temperature control solutions, making it an attractive option for small to medium-sized applications.

5. Easy to Install: Installation can be accomplished quickly and easily, as it uses standard 1/4-20 threaded connections for the sensor and output.

1. Limited Inputs and Outputs: This temperature controller has only one input and one output, making it less suitable for complex temperature control applications requiring multiple sensors or actuators.

2. Manual Tuning: Tuning of the controller's settings requires manual adjustments, which can be time-consuming and may require expertise.

3. No Display: The controller does not come with a built-in display, which may make it difficult to monitor temperature readings and controller settings without connecting external devices.

The Honeywell T991A2044 Proportional Temperature Controller offers a wide temperature range, precise proportional control, and fast response times due to its copper transmission line. However, it may not be suitable for complex temperature control applications with multiple inputs and outputs, as it requires manual tuning and lacks a built-in display.

If your temperature control application has a simple temperature regulation requirement, a wide temperature range, and no need for multiple inputs or outputs, the Honeywell T991A2044 Proportional Temperature Controller would be an excellent choice due to its cost-effectiveness and ease of installation. However, consider other options if you require advanced temperature control features or multiple inputs/outputs.

Details:

Key specifications and features include: manufacturer: Honeywell, model number: t991a 2044, type: analog modulating temperature controller, temperature range: -30 f to 70 f, sensing element: 5 ft copper capillary tube, potentiate value: nominal 135 ohms, power: 24-30 vac, pressure rating: 50 psi maximum for bulb direct immersion this is a 2044 Honeywell modulating controller.

specifications maxohvac:

• brand: Honeywell
• mpn: T991a2044
• part type: Controller
• country of origin: United States

payments maxohvac:

• other
• money order
• wallet: google-pay
• credit card: visa

returns maxohvac:

• policy: no returns

shipping maxohvac:

• service: usps ground advantage
• carrier: usps
• type: calculated
• class: standard
• transit: 5-12 days

offer maxohvac:

• prices: $41.50–$463.18
• item condition:
  • Used
  • New – Open box
  • New
• availability: in stock
• started: march 12, 2026
• in stock #: 5
• sold #: 10
• options: ship-to-home

general maxohvac:

• category: Business & Industrial > Hvac Refrigeration

seller maxohvac:

• rating: 96.3%
• city: whitesboro, new york
• # reviews: 25

Also Viewed:

• L604A-1193: CONTROLLER, Honeywell
• MCBA14201D: CONTROLLER BOARD HEATER, Honeywell
• L4007A1016: CONTROLLER, Honeywell
• L8148J-1009-L8148J1009: CONTROLLER, Honeywell
• P406B-1008: PRESSURE CONTROLLER, Honeywell
• CP-7301: CONTROLLER, Honeywell
• R8182AD: CONTROLLER, Honeywell
• L4081B1047: CONTROLLER, Honeywell
• W973A1017: CONTROLLER, Honeywell
• R8185E: CONTROLLER, Honeywell
• L404F1367: PRESSURE CONTROLLER, Honeywell