Description
The Honeywell S301-IRF-R22 is a refrigerant gas sensor specifically designed for R22 detection when used with the Honeywell 301-EM monitoring system. It measures concentrations from 0 to 1000 ppm and provides a 4–20 mA output for integration with building safety controls. Engineered for continuous monitoring, it supports early leak detection in commercial refrigeration and HVAC environments.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Honeywell |
| Category |
Gas Detection |
| Part Number |
S301-IRF-R22 |
| Subcategory |
Refrigerant Gas Sensors |
| Target Gas |
R22 Refrigerant |
| Measurement Range |
0–1000 ppm |
| Output Signal |
4–20 mA |
| Power Supply (AC) |
22–27 VAC @ 48 VA, 50/60 Hz |
| Power Supply (DC) |
22–38 VDC @ 2 A Max |
| Sensor Technology |
Infrared (IR) |
| Compatibility |
Honeywell 301-EM |
| Application |
HVAC / Refrigeration Leak Detection |
| Mounting Type |
Fixed Installation |
| Weight |
1 lb |
Information About S301-IRF-R22
The S301-IRF-R22 is a Honeywell infrared refrigerant gas sensor developed for compatibility with the 301-EM gas monitoring controller. It is calibrated specifically for R22 refrigerant and delivers accurate concentration readings across a 0–1000 ppm measurement range. The sensor outputs a standard 4–20 mA signal for reliable communication with compatible monitoring and alarm systems. Designed for flexible power input, it operates on 22–27 VAC at 48 VA (50/60 Hz) or 22–38 VDC up to 2 A maximum, making it suitable for commercial HVAC and mechanical room installations.
Key Features:
- R22-Specific Detection: Calibrated for accurate monitoring of R22 refrigerant gas.
- 0–1000 ppm Measurement Range: Enables precise leak detection within typical exposure limits.
- 4–20 mA Output Signal: Provides standardized analog output for control system integration.
- 301-EM Compatibility: Designed for use with Honeywell 301-EM gas monitoring controllers.
- Dual Power Options: Operates on 22–27 VAC (50/60 Hz) or 22–38 VDC.
- Infrared Sensing Technology: Enhances stability and reduces cross-sensitivity.
- Continuous Monitoring Capability: Suitable for mechanical rooms and refrigeration spaces.
The S301-IRF-R22 delivers the reliability and precision required for refrigerant leak detection and safety monitoring in commercial HVAC systems.
