R7184B ENVIRACOM TB has open circuit, can remove it

cstatzer

I have oil furnace with Honeywell R7184B control module. This has a ENVIRACOM terminal board mounted beside the unit with two wires going to the R7184B. Note I am a technical engineer with electrical background, and have been maintaining oil furnaces since 1982. I have determined that the ENVIRACOM terminal board has a cold solider joint (can pull wires one way and it works, other direction, furnace runs blowing cold air and oil burner will not come on.) i have replaced the spade terminals on all the wires to the TB. I can not find where to order another ENVIRACOM terminal board anywhere on line, and would like to know if can eliminate it, or can you tell me the actual replacement part number and where I can order on line. The thermostat is a simple one with just temperature contact and fan On/Off. Thanks in advance for your help.
Reference pictures:

Steamhead

The terminal board is not part of the R7184B. It is a separate unit.

109A_5

Hello @cstatzer,
Which terminal strip has the issue ? I'm guessing its the one to the Left with just two wires pictured ?
Cold Solder joints are repairable.

The Electronic Oil Primary is replaceable too with a newer version.

Does not look like the ENVIRACOM functionality is being used.

HVACNUT

You don't need the transformer, but dont know if it can be orderdd without.

mattmia2

If you know electronics you could always fix the solder joint.

109A_5

Hello @cstatzer,


https://www.supplyhouse.com/Beckett-51970U-A-C-Ready-Kit
https://s3.amazonaws.com/s3.supplyhouse.com/product_files/Beckett-51950U-User-Guide.pdf

Looks like it is less expensive and in stock with the transformer.
https://www.supplyhouse.com/Beckett-51950U-Beckett-GeniSys-A-C-Ready-Kit