On this service call I find an air conditioner that is low in r410a refrigerant. The customer decided replace the air conditioner, but until the new air conditioner got installed, he wanted me to recharge the old air conditioner so he could have some cooling.
I recharge the air conditioner with r-410a according to the superheat method because this system had a piston metering device. I got the air conditioner charged properly giving this customer a cool house until his new air conditioner could be installed.
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