Relocated thermostat for unit 2 to the hallway (back side of wall of exam room 5). Did so because of large temperature difference in exam room where thermostat was located and hallway. Found a 3 degree difference between the 2 spaces. Used thumb gum to seal backside of wall where hole penetration was. Also moved hand washing sign over hole in the wall so it isn’t noticeable. Once thermostat was relocated I tested system and checked operation. Went into installer settings and made sure they were correct. Unit operating normal at this time.