I need A wiring digram for a Byrant 7a4anf036000abaa air handler It is old but still in good shape . I just need to change the transformer an a frind removed the wires and i need to check a digram before...
I have searched high and low for a schematic and that model number doesn't even come up anymore? I have worked on bryant units for years . I can tell you by the 036 , it is a 3 ton unit. as far as replacing the transformer, you may not need a diagram. If you know what the voltage is coming into the unit, lets say208/230 and look to see what your control voltage is by looking at the voltage rating on one of the parts in the system, I would say 24volts, your chances are good you can install the transformer. A new 208/230voltx24volt trans, comes with all of the wiring laied out for you. Find the 2 high voltage Line wires coming in and tie to the high side of the transformer, and the 2 wires labeled for 24 volts to the load side, and your all set.Keep in mind that some of these universial transformers come with several colored wires for different voltages, so be sure to look at the transformer diagram and it will tell you what colors to tie together for the voltage you need. You should be able to pick up where you're friend left off, just look for the high volts in for one side and low volts out for the control side.Be sure to have a meter on hand to check the voltage. Just take your time, you can do this.
Ps It wouldn't hurt to add a 5 amp auto fuse to one of the wires on the low voltage side of the transformer, in case you miss wire it, and it will blow the fuse and save the new transformer.All you need is 2 female spade connectors and a 5 amp fuse.
Good Luck, Sincerely, shastalaker7
Oct 30, 2009 |