I recently installed a hot air oil furnace in my work shop. The heater is a York with a Beckett burner and is approximately 12-13 years old. The unit is in very good shape and function properly.

The unit is completely installed and ready to fire-up. The furnace is elevated about 6’ above the oil tank. The tank and the furnace were originally I one pipe system. Because of the height of the furnace (verses the tank) I was unable to get the burner to prime Instead of installing the two pipe system I’m going to install a Tiger loop. The tiger loop won’t arrive until the week of

Here’s my question; the Beckett manual and the tiger loop instruction require that I re-install the by-pass plug. Since this was originally a one pipe system I assume that the plug was removed or never installed. However I not sure where I would find this plug on the pump since there is no designation anywhere on the pump or in the Beckett manual. Can anyone tell me where I would find this plug and where I could purchase one?

I would also like to get some feedback on the tiger loop vs. the two pipe systems. Also does any one have any ideas on how to prime this pump the way it’s installed know?

 

The bypass plug is 'inside' the return port on the bottom of the pump. You would have to remove the return pipe, adapter, or plug, to gain access to the threaded hole. The plug thread is I believe 1/16 NPT and the plug supplied with new pumps has a 5/32 hex wrench head. It looks like a setscrew, but it is PIPE THREAD.

 

If the burner has a Suntec pump, Trooper is correct. If the pump is a Danfoss, no by-pass plug is needed.