I've got a TACO 6 zone control panel which I'm planning to intergrate into my Weil McLain Boiler. Currently I've got 1 loop which I plan to break into 4 zones. My question is how to retrofit/set up the wiring from the new controls to the existing boiler. The TACO unit has a 24 volt transforer good for 75VA which is plenty to power the zone valves, etc. This new control panel has slots for 2 end switch leads (circulator, aquastat, etc.). With my boiler, however, I've got electronic ignition and a power damper and circulator coming off of an existing 24 volt transformer. Should I dump the existing transformer and tie into the end switch leads for the circulator, aquastat and damper? Any input appreciated from someone familiar with these controls. Patrick

we have two weil-mclean(?) heaters to heat two units in a 2 flat. our neighbors flipped the switch on theirs 3 days ago. last night we turned ours on. they are both on and functioning at the basement level. the difference is that they have heat on the 2nd floor, we have none on the first. i have looked at all of the valves and faucets and see only 2 differences. their gravity flo valve is open and loose and their pressure is at about 18psi. we have no pressure and i have opened and now closed that gravity flo valve (i had to use a wrench, very tight, unlike theirs). the radiators in our apartment are open, the bleeders were closed but are now open. just as i opened the first a tiny bit of air came out but none at the others. i rechecked the psi but no change. the boiler is on and creating heat in the pipes up to the gravity flo valve. hot water flows out of the boiler so it seems to be full, though we didn't fill it.