Lack of comfort is a highly overlooked reason for poor sleep. Most people don't know that inadequate rest is a leading cause of various medical problems.
In this troubleshooting situation, a restaurant manger is calling for service on a reach-in freezer, and the complaint is that the unit “isn’t freezing things hard.”
This article will compare subcooling amounts in a refrigeration system for three scenarios: an overcharge of refrigerant, a dirty condenser, and air in the system.