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AirConditioner · 04-21-15, 12:37 AM

I want to convert a 6500 BTU window air conditioner into a "water source" air conditioner. I've looked at various threads showing homemade heat exchangers, but I think I'd like to just use a flat plate heat exchanger from ebay. I want to plumb it so that both the evaporator and condenser on the original window unit become an evaporator and cold air comes out both sides.

How do I know what size heat exchanger I need for the condenser? Most of them do not have BTU or ton ratings. I can't post a link because I don't have enough posts, but I'm looking at a 14 plate SS heat exchanger on ebay for $48. It's rated for 725 PSI but I don't know if it would be big enough? Dimensions are 2.83"x7.36".

04-21-15, 12:37 AM	#1
AirConditioner Helper EcoRenovator Join Date: Apr 2015 Location: US Posts: 42 Thanks: 5 Thanked 1 Time in 1 Post	Flat plate heat exchanger size? I want to convert a 6500 BTU window air conditioner into a "water source" air conditioner. I've looked at various threads showing homemade heat exchangers, but I think I'd like to just use a flat plate heat exchanger from ebay. I want to plumb it so that both the evaporator and condenser on the original window unit become an evaporator and cold air comes out both sides. How do I know what size heat exchanger I need for the condenser? Most of them do not have BTU or ton ratings. I can't post a link because I don't have enough posts, but I'm looking at a 14 plate SS heat exchanger on ebay for $48. It's rated for 725 PSI but I don't know if it would be big enough? Dimensions are 2.83"x7.36".