Welcome! Here are the website rules, as well as some tips for using this forum.
Can I use a 2.5 ton coil with a 1.5 ton condenser?
My client has a new, barely month old 1.5 ton R-22 condenser I salvaged for him from a remodel of his house. He has another house on the property with an oil furnace with an old, never used 2.5 ton probably 8 or 10 Seer coil perched on top of it. I told him this condenser was undersized for the situation but he wants go ahead and use the 1.5 ton condenser anyway. From the age of the coil I'm certain it has a piston type metering device. Will it work without getting a smaller piston to properly control the freon flow? Any other problems possible here? Thanks in advance for your help and advice.