Honeywell Self check UV amplifier R7861A1026/u

The Honeywell R7861A1026/u is a self-check UV amplifier designed for flame detection systems. It verifies the detectors and all electronic components of the flame detection system 12 times per minute. The flame signal intensity range is 0 to 5.0 V, and it connects to the 7800 relay module via an edge connector, configured for its own orientation. It includes sockets for measuring the flame signal voltage. This unit weighs 70 g, operates in ambient temperatures from -40 to 60 °C, and has dimensions of 91 mm width, 85 mm height, and 23 mm thickness. It is compatible with the Honeywell C7061 detector.

Parts of this type are selected by ensuring compatibility with the specific relay module and detector model. The amplifier must match the electrical specifications and mounting configuration of the existing system. Before ordering, verify the connector type, orientation, and voltage range to ensure proper fit. Installation typically involves connecting the amplifier to the relay module via the edge connector and securing it in place.

When amplifiers of this kind fail, the flame detection system may not respond correctly, leading to burner shutdown or failure to ignite. Common issues include loss of flame signal, intermittent operation, or false flame indications. Check the amplifier's voltage output and connections, and test with a simulator if available to isolate the fault.