Resideo Braukmann t991a1244 Modulating Temperature Controller 55 F to 175 F 5 Ft Capillary

Product Description

The Resideo Braukmann T991A1244 is a modulating temperature controller designed for precise analog control of water or air temperature in ducts, tanks, and similar HVAC and hydronic applications. This remote bulb controller outputs a single 135 ohm potentiometer signal, making it compatible with a wide range of modulating actuators and control systems operating on 24 VAC to 30 VAC at 50 or 60 Hz. HVAC technicians and building automation professionals rely on this type of controller to maintain steady temperature conditions without the on-off cycling that can stress equipment and reduce comfort. The T991A1244 covers a temperature range of 55 F to 175 F, with a setpoint range of 59 F to 167 F and a maximum operating temperature of 200 F, giving it the headroom needed for demanding hydronic heating and air handling unit installations. The copper bulb sensing element measures 1/2 inch in diameter and approximately 4-3/16 inches long, and it connects to the controller body via a 5-foot capillary tube. This remote mounting capability lets technicians position the sensor directly in the medium being measured while keeping the controller body accessible for setpoint adjustments. The throttling range is field-adjustable from 3 F to 30 F using the dial inside the case, allowing the proportional band to be tuned to match the dynamics of the system. The setpoint can be read and adjusted through the cover without removing the housing, which simplifies commissioning and routine service. The controller is ambient temperature compensated for both the case and the tubing, improving accuracy across varying installation environments. The gray housing measures 5-5/8 inches high, 2 inches wide, and 2-1/4 inches deep, fitting neatly into standard control panel enclosures or surface-mounted locations. This controller is well-suited for duct temperature control, hot water tank regulation, mixing valve control, and other modulating HVAC and plumbing temperature management tasks.

• Modulating analog output via a single 135 ohm potentiometer for smooth, proportional temperature control
• 5-foot capillary with copper remote bulb sensor allows flexible, accurate sensing in ducts or tanks
• Field-adjustable throttling range and through-cover setpoint adjustment simplify commissioning and service

Product Highlights

The Resideo Braukmann T991A1244 delivers reliable modulating temperature control with a remote copper bulb sensor and analog potentiometer output, suited for HVAC duct, hydronic, and tank temperature regulation across a 55 F to 175 F range.

Product Information

Standard Information

• Brand: RESIDEO BRAUKMANN
• Manufacturer Part Number: T991A1244

Technical Specifications

• Application: Modulating control of water or air temperature in ducts, tanks, and similar systems
• Controller Type: Modulating remote bulb
• Output Type: Analog
• Analog Output: One 135 Ohm Potentiometer
• Voltage: 24 VAC to 30 VAC
• Frequency: 50 Hz and 60 Hz
• Temperature Range: 55 F to 175 F
• Setpoint Temperature Range: 59 F to 167 F
• Maximum Operating Temperature: 200 F
• Throttling Range: 3.5 F to 36 F
• Sensor Type: Copper Bulb
• Number of Sensor Inputs: 1
• Capillary Length: 5 ft
• Bulb Size: 1/2 inches diameter x 4-3/16 inches long
• Height: 5-5/8 inches
• Width: 2 inches
• Depth: 2-1/4 inches
• Color: Gray