L8148J Aquastat and millivolt gas valve

L8148J Aquastat and millivolt gas valve

[@cfalco518]

My Man. Thank you for answering my question without a $400 bill. For folks that have a 24v gas valve and the Burners are not firing. this guy has your answer you'll need to use both jumpers from W to Z then Z to TP like a backwards L.

[@ramatraghubir1295]

❤

[@jacekchmielowski3511]

Thanks to you was able to replace aqua sat and run my boiler

[@patrickobrien4636]

Geo you saved my butt with this video Thank You

[@ptbronco03]

What would you do if the gas valve is not closing after temp is satisfied?

[@waltkong]

thanks for explaining what MV burner is

[@nasirgore6467]

Very well explained helped me a lot to install

[@waltkong]

Does this L8148J has enough transformer power for a vent damper?

[@peterdeebrah72]

I have a L8148J (24Vac) on my boiler connecting to 2 zones with Honeywell 8043E valves. There are 4 conductors in the thermostat wire. Which terminal in the aquastat can be used for "C" wire to Nest thermostat? Thanks.

[@nomadicjourneys8693]

Really helpful, thanks!

[@hiphopstars1100]

Great video

[@hiphopstars1100]

Thanks

[@chinopaiz1708]

I do have three questions: 1) Where the red jumper is, it is for a 24V thermostat ..?? 2) Where the yellow jumper is. It is to connect a millivolt thermostat? When is necessary to remove the jumper between Z and W ??