Apartment complex type units can be serviced and parts can be purchased by calling Mark Grant @231-955-8780.
I have a new supply of these units at my finger tips through APCO, Michigan Temp Supply. These modular units are easy to service with the right know how. Please let me know how I can help.
Cooling Chasis HWC4-09-181P , HWC4-09-241P , HWC4-09-301P along with the A420-2 PAnel kit and R06429D434 Chassis fan control kit
Compressors and Coils cap tubes and filter driers
Heat exchangers 4,5,6 cell and burner tubes and motors can all be had. If you have the part number I can get it for you or with the model number I can look it up.