Hi all, I hope someone can help.

I am working on a

Chromalox
M#SHPIDF1504.0
S#86041269
15000 BTU cooling
13650 BTU heating
with an electric heating coil for emergancy heat

This is an air to air heat pump.

The deal is that this unit has had a lot of hands in it, and has no wiring diagram.

My experience is almost non-existant on air to air heat pumps.

I am thinking that there has to be some kind of defrost control on this thing...to defrost do we run the a/c so that the outside coil has some heat to work with?

Would anyone happen to have a wiring diagram for this thing. Of course it is urgent