I need help determining the proper OFM & blade for 2 identical Lennox condensers (straight cool). I have a job at a bank repossessed house and someone stole both of the condensing fan motors and fan blades. The units were put back together very nicely and everything else is intact. All I can get from the plate is that it is a 1/3 HP. looking for rpm, blade size, pitch etc... Thank you in advance.