Cad Cell Relay

Typical connection for 24 vac thermostat and r7184b p u for valve on delay blower off delay oil burner system.

Cad cell relay.

Hvac part for a heating application. H x 7 in. What is the first thing the service technician should do. Honeywell r7184u1004 15 second universal cad cell relay microprocessor oil burner control renewed 132 75 works and looks like new and backed by the amazon renewed guarantee.

It is used with a cad cell flame sensor operates an oil burner and optional oil valve. Replacement cad cell relay. This article series explains the operation use and reset button on cad cell relay controls including the cad cell works to see the oil burner flame what goes wrong in an oil burner that the cad cell eye can detect and how cad cell sensors are tested using several methods including a vom. Use for frostfighter idf and ohv oil diesel fire.

The intention of this service video is to demonstrate how to test the cad cell and the controller of a unit. Igniter spark detection cad cell high during run cad cell adjustment cleaning flame proven late in trial and low voltage alarms. 2 cad cell 2 burner motor l2 burner ignitor cad cell l1 junction box alarm t t legend. The grade of fuel used in residential and light commercial units is.

The beckett replacement cad cell relay is designed for an hvac heating application. Applicable for use with both hydronic and forced air systems. Diagnostics with actionable information. The cad cell itself that is the little cell that sees the oil burner flame is wired often by a yellow wire to the cad cell relay switch see photo which is usually a gray box with a red reset button located on top of or alongside the the oil burner assembly.

If the cad cell senses light or is shorted the relay in the primary control will not pull in to start the burner. Quick connect terminal l1 hot l2 fan relay cooling control t8600 rc g y r w cooling transformer 1 fig. Screw terminal 1 4 in. W x 3 1 4 in.

An oil burner equipped with the cad cell relay will ignite run for about ninety seconds and cut off. Compatible with a beckett afg burner. This replacement cad cell relay is designed for use with a beckett afg burner.