Oil Primary Control

Yes, this universal control can be used to replace the control you reference. But this assumes you understand your system’s order of operations so that you can set this universal control to act in the same way as the control you are replacing.

I assume you are talking about a fuel oil delay valve. The fuel oil delay valve is in the fuel pump on in the oil burner primary control valve. If from a desktop computer, you scroll down the Home Depot product listing page you will come to a section entitled Product Details. Expanding that section will reveal PDFs of the product documents. In specification sheet and instructions, you will find information about using this control on systems that employ and fuel oil delay valve.

This control has been designed to be universal, so that a qualified licensed oil burner technician can configure it on the job site to replace most oil burner primary controls including an R8184G.

If you scroll down the Home Depot product listing page you will come to a section entitled Product Details. There you will find PDF’s of product documents. If you open and review the instructions you will find this control has many features that can be turned on and off as well as adjusted. It could be configured to perform the same functions as oil burner primary you mention. My point is that it is not a plug and play replacement. You would need to have a working understanding of the logic used in your oil burner ignition sequence so that you could configure this control to work appropriately as a replacement.

In many applications it will. If you scroll down the Home Depot product listing page you will come to a section entitled Product Details where you will find PDF’s of product documents. If you open the entitled instructions you will find I covers this model the “U” version and the one you reference the “B” version. It also calls out the differences for your review.

Yes

Honeywell, now called Resideo, makes many versions of the same control. Each may have slightly different variations. In answer to your question, the 7505 is a series of burner controls were a few different versions in that series and this is a burner control. This control can be used to replace controls in the GeniSys series. But it is not as simple as just taking one off and putting one on. The wire coloring system is not universal across all controls. You will need to know and understand the nature of how your current appliance works so you can wire and program this control function appropriately.

The "U" in the model number of the oil burner primary you have and the "U" in this oil burner primary's model number indicates that they are universal. So you could use this one to replace that one. However keep in mind that they are two different controls so don't assume the color codes on the wires will be the same.

Yes, it will replace the r7184p.