Thermostatic Controls - This has to be easy

This has to be easy but I need help.. here goes.. I have oil fired boiler, hot water base boards and central a/c installed (carrier a/c model 40YR036300), I think a/c installed later in the years I just need to know how to hook the zone control valve (from the boiler) at the air handler 3 sets of wires that lead into the air handler zone control valve (taco 572-2) has red and white wires that lead to the air handler a/c (from outside) has red and white wires at the air handler and I have (5 wire set) at the air handler (standard colors) Red, White, Yellow, Blue, Green I have a new thermostat RTH230B with connections RH RC W Y G now in the air handler I have a panel with a 5 amp fuse on it with screws to attach wires with the following letters: R Y O L and something else C G E W2 and something else in the back of this panel the R is connected to what looks like a small transformer, I can get volts of >24 so to me this connections hot.. I can get volts from R to C of >24 volts and the same from R to G.... this is the way it is hooked up right now to thermostat air handler (R) to (5 wire red) to (thermo RH) air handler (G) to (5 wire green) to (thermo G) a/c unit outside (red wire) to (air handler C) a/c unit outside (white wire) to (5 wire yellow) to (thermo Y) have jumper from (thermo RH to RC) at thermo.. fan switch set to auto.. set it to on.. fan comes on..yeah!! at thermo.. fan switch set to auto.. set thermo for a/c.. (compressor outside comes on and fan as well) yeah!! if this is a right for a/c? Now, where do I connect the red wire from the zone valve?? zone valve white wire I believe should connect to the (5 wire white) to (thermo W) the only other thing that I don't comprehend quite yet is.. the red and white wire from the zone valve has current between them of >24 volts i have picture drawn of how it is connected right now so what do yall think?http://mail.google.com/mail/?ui=2&ik=fa4f0a2089&view=att&th=123f209a0743b06f&attid=0.1&disp=inline&zw http://i647.photobucket.com/albums/uu198/lguijarro/wire1.jpg here are a couple of pictures if this helps Thanks, luis http://i647.photobucket.com/albums/uu198/lguijarro/wire1.jpg

Please keep all your related posts in the same thread. :coffee:

remove the jumper on the subbase between Rh and C(why you have 2 transformers) now take the red/white from the boiler and connect them to Rh and W that is your heating side of the stat...seperate from the AC.so when the heat callls it closes the red/white,the zone valve opens the circulator comes on and the boiler starts to heat the space.if you have a system selection on the stat put into heat during the winter if you need to circulate air only put the fan in the ON positon.the only danger here is if you slip the subbase into cool or auto and the room temp from the heating is higher then the cooling setpoint...that hammering noise you will hear from outside will be the compressor starting up when it is 20F and the oil is like mud.if you plan on no fan runs in the winter just shut the toogle off at the air handler.don't know the type of stat you have if it is digital or mechanical should work same either in heat or cool.somebody might change my directions with more input.....

As said remove the jumper between R and Rh on the t-stat.

Rh--------boiler
W--------boiler

T-stat----AH
R---------R
G---------G
Y---------Y-------A/C
C--------C-------A/C