This unit was installed in a new house late 2014. Pressurized with horizontal ground loop. The Barron techs are still here diagnosing with the latest comment being compressor overheating. When they first came out last week a leak was suspected, but nothing had been done to the unit since Summer 2020. Would have to be a pretty slow leak. Bosch Water Source Heat Pump Model SM060-1CFC-SLBATA-EHGXXXXXD7XXXX8XXXXSBA SM is series 60 is nominal ton capacity 1 means 220 volts 60 cycles CF means downflow configuration C means copper coax material S means side water connections L means left return air B means bottom discharge air A means const air flow ECM motor speed T means Tin coated air coil material A means level revision of the product E means 20 kilowatt electric heat H means painted steel 1/2 inch closed cell foam cabinet G means geo thermal application X's mean General Electrical Options is none D means Heat Recovery Package for Refrigerant Circuit Options 7 means Transformer is 75 VA volt/amps X means Controls = None X means water flow control is none X means economizer is none X means "Open" ?? is none 8 Filtration (unideintifed ) character 33 in the model number string
The Barron techs are going to have to come back to diagnose the compressor with Bosch on the phone. They pressurized the loop but the compressor is still cycling and overheating Ours isn't ten years old and there is a warranty on the SM series. https://www.bosch-homecomfort.com/u...ch_wshp_residential_10yr_warranty_07.2022.pdf
