T991A1061 | Honeywell 24 VAC Modulating Temperature Controller 160–260 °F, 5 ft Capillary
Honeywell · PLCs & Industrial Controllers
Description The Honeywell T991A1061 is a modulating temperature controller designed to provide precise analog temperature control in water or air systems. Operating from 24 VAC to 30 VAC, it features a remote copper bulb sensor with a 5 ft capillary for accurate temperature monitoring in ducts or tanks. The unit offers a proportional analog output through a 135 Ω potentiometer for smooth modulation of connected equipment. Technical Specifications Condition New/Never Used Surplus Brand Honeywell Category Controls & Indicators Part Number T991A1061 Subcategory Temperature/Process Control Application Modulating control of air or water temperature in ducts or tanks Voltage 24 VAC to 30 VAC Output Type Analog (135 Ω potentiometer) Frequency 50 Hz / 60 Hz Sensor Type Copper bulb Sensor Inputs 1 Capillary Length 5 ft (1.5 m) Bulb Size ½ in dia × 4-3/16 in L (13 mm × 107 mm) Setpoint Range 160 °F to 260 °F (71 °C to 127 °C) Maximum Operating Temperature 280 °F (138 °C) Throttling Range 3 °F to 30 °F (1.7 °C to 16.7 °C) Case Color Gray Dimensions 5-5/8 in H × 2 in W × 2-1/4 in D (143 mm × 51 mm × 57 mm) Mounting Panel or surface mount Max Bulb Pressure 50 psi (direct immersion) Output Signal Analog, modulating 135 Ω potentiometer Weight 1.20 lbs (0.54 kg) Information About T991A1061 The T991A1061 belongs to Honeywell’s T991 Series of modulating temperature controllers, which provide accurate proportional control for heating and cooling systems. This model covers a temperature range of 160 °F to 260 °F (71 °C to 127 °C) and includes a copper bulb sensing element for fast thermal response. With a compact case and front-access adjustable setpoint dial, it is ideal for water heaters, air-handling units, or process tanks. The controller’s fast-response sensing design ensures stability and accuracy, while the throttling range (3 °F to 30 °F adjustable) allows fine-tuning for specific control requirements. Key Features: Analog Modulating Control: Provides smooth proportional output for accurate temperature regulation. Wide Temperature Range: Adjustable setpoint from 160 °F to 260 °F (71 °C to 127 °C). Copper Bulb Sensor: Durable and thermally responsive for precise measurement. Adjustable Throttling Range: 3 °F to 30 °F (1.7 °C to 16.7 °C) for optimized control sensitivity. Remote Capillary Design: 5 ft (1.5 m) capillary enables flexible sensor mounting in ducts or tanks. Ambient Temperature Compensation: Corrects for ambient effects on the case and tubing. User-Friendly Adjustment: Setpoint dial visible and adjustable through front cover. Robust Construction: Designed for continuous operation with maximum bulb immersion pressure of 50 psi. High Operating Limit: Withstands up to 280 °F (138 °C) maximum operating temperature. Versatile Application: Suitable for modulating control of air or liquid temperature in HVAC or process systems. The T991A1061 delivers the reliability and precision required for industrial and commercial temperature modulation applications.
Brand: Honeywell · Category: PLCs & Industrial Controllers
Key features
- Analog Modulating Control: Provides smooth proportional output for accurate temperature regulation.
- Wide Temperature Range: Adjustable setpoint from 160 °F to 260 °F (71 °C to 127 °C).
- Copper Bulb Sensor: Durable and thermally responsive for precise measurement.
- Adjustable Throttling Range: 3 °F to 30 °F (1.7 °C to 16.7 °C) for optimized control sensitivity.
- Remote Capillary Design: 5 ft (1.5 m) capillary enables flexible sensor mounting in ducts or tanks.
- Ambient Temperature Compensation: Corrects for ambient effects on the case and tubing.
- User-Friendly Adjustment: Setpoint dial visible and adjustable through front cover.
- Robust Construction: Designed for continuous operation with maximum bulb immersion pressure of 50 psi.
- High Operating Limit: Withstands up to 280 °F (138 °C) maximum operating temperature.
- Versatile Application: Suitable for modulating control of air or liquid temperature in HVAC or process systems.
Specifications
| Manufacturer part number | T991A1061 |
|---|---|
| Condition | New/Never Used Surplus |
| Brand | Honeywell |
| Category | Controls & Indicators |
| Part Number | T991A1061 |
| Subcategory | Temperature/Process Control |
| Application | Modulating control of air or water temperature in ducts or tanks |
| Voltage | 24 VAC to 30 VAC |
| Output Type | Analog (135 Ω potentiometer) |
| Frequency | 50 Hz / 60 Hz |
| Sensor Type | Copper bulb |
| Sensor Inputs | 1 |
| Capillary Length | 5 ft (1.5 m) |
| Bulb Size | ½ in dia × 4-3/16 in L (13 mm × 107 mm) |
| Setpoint Range | 160 °F to 260 °F (71 °C to 127 °C) |
| Maximum Operating Temperature | 280 °F (138 °C) |
| Throttling Range | 3 °F to 30 °F (1.7 °C to 16.7 °C) |
| Case Color | Gray |
| Dimensions | 5-5/8 in H × 2 in W × 2-1/4 in D (143 mm × 51 mm × 57 mm) |
| Mounting | Panel or surface mount |
| Max Bulb Pressure | 50 psi (direct immersion) |
| Output Signal | Analog, modulating 135 Ω potentiometer |
| Weight | 1.20 lbs (0.54 kg) |
| Product type | Temperature/Process Control |
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