most of my job is Hvac and walkin cooler/freezer and self contain.
have a chance to visit rack system at safeway for first time.
the company i work for recently pick up a few supermarket.
- how to rate rack compressor by HP or Tonnage? is it the same rule apply by looking at the model #?
i've been told model# is only true for copeland.
- what is procedure to change the removable core dryer and oil? does it need pump down and vacuum after.
- oil sample, does it need to send to lab
- where is common way to add refrigerant if needed.
any advices would help for beginner in rack systems.