Honeywell UV detector minipeeper C7027A1064/U

The Honeywell UV detector minipeeper C7027A1064/U is an industrial flame sensor that detects ultraviolet radiation emitted by flames. It is designed for use with Honeywell flame monitoring systems in gas, oil, and combined burners. This model is compatible with amplifiers R7249A, R7290A, R7749B, and R7849A. It can operate at pressures up to 5 psi and includes a flange seal and UV reading tubes. The sensor is compact, suitable for installation on purge pipes, and features two 6-foot color-coded wires for electrical connections.

When selecting a replacement UV detector of this type, ensure compatibility with the burner's flame monitoring amplifier model. Verify the mounting configuration, as these sensors are often installed on purge pipes with a flange seal. Check the pressure rating to confirm it meets the system's requirements. Electrical connections typically include two color-coded wires; confirm the wire length and type match the existing setup.

UV detectors of this kind may fail due to contamination or degradation of the sensing tube, leading to intermittent or loss of flame detection. Symptoms include burner shutdowns or failure to ignite, often accompanied by a fault code on the control system. Check the sensor's window for dirt or damage, and verify the wiring connections are secure.