AboutJ Cook Expertise With 25+ years experience, I am familiar with residential, commercial, and industrial HVAC equipment including but not limited to boilers, chillers, reciprocating and screw compressors. I am trained in all manners of control wiring.
Experience I currently have three HVAC licenses and Refrigeration license by the State of North Carolina. I have been in this field for over twenty years. I have been a service technician for a contractor and also worked at a state college in the repair and maintenance of steam lines and equipment. I am currently the Building Maintenance Superintendent for a municipality.
Question QUESTION: I just bought a 12000 btu 17 seer mr. slim heat pump. The model number is MSZA12NA and MUZA12na. I was wondering if I can reuse the copper flare refrigeration tubing from the old soleus unit I am replacing. The Mr. Slim unit is using the R410a refrigerant and the Soleus had r22. Also I have a crawl space under my house that is 16' x 35' x about 40". Is it possible to put the compressor unit in this area. Thanks
ANSWER: If the lines are the same size and you blow nitrogen through them to clear any oil residue, they should be fine to reuse. I would not put the outdoor unit underneath. There will be a moisture problem if put underneath. Thanks J
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QUESTION: The unit would be placed near a sum pump so i could drain the unit directly into it, I was more concerned with the heat or the noise the unit would put off. Would either be a concern.
There are 3 vent openings in the crawl space 6" x 12" each.
Answer I was not referring to the condensate, in heat mode, the entire outdoor coil will ice over, as it is running the unit is essentially air conditioning the outdoors, so underneath will get extremely cold and create moisture build up. Also when the unit goes through a defrost mode, the outdoor coil defrosts creating a lot of moisture around the entire outdoor unit. With it in a confined space and this space getting constantly colder, the unit will be unable to pick up heat as easily as in free outside air and not be as efficient.
Thanks J
