I will be going back tomorrow for the 2nd time on a new install and would like some help from you pro's!
I sold a client a 2 ton R22 air handler to go with his 2 ton straight cool XL14i condenser and we mistakenly installed a 3 ton R410 air handler (Trane) and had a call back for not enough cooling the next day. We then replaced the air handler again with the correct size but still using the R410a expansion valve. When I questioned why not replace the expansion valve I was told by management that it will work fine and no need to replace valve. And now after a few days later I find out I am going back and I have a feeling that my problem is going to be that the valve should be replaced to use R22. As I don't really know why other than its wrong. What can I tell my management to explain why it's wrong? And if it is ok to do I will just drop my argument and move on.
Thank you in advance for your help.