How Do I Add Freon To A Portable Air Conditioner?
I just got a Haier HPAC7M portable AC w/no manual. I opened it up and didn't see where to add freon. I know each unit is different. I'm just looking for a general idea of what to look for and where.
Answer:
Most window and portable type units do not have service ports in them. A licensed HVAC man can install ports so that gauges can be used. Without gauges and knowledge there is virtually nothing for DIY's to try beyond cleaning the coils. The very fact you asked what you did says you do not have the gauges or the knowledge. This is a sealed system and is not equipted with service valves. Process tubes are Installed in Compressor Housings during manufacture for dehydration and charging and these are adapted by service technicians by the addition of an access valve. Access valves can be of various types frome line tap to a brazed schrader access port. Out of curiosity why do you want to add refrigerant to this Unit If incorrectly work on the unit you could do more damage and if money is a issue then you might want to contact a local vocational school and see if you could drop off the unit so the students can check it out. That way they get some experience and you can save some money