@refrigerationmentor: How to safely use a nitrogen regulator to pressurize a refrigeration system: • Keep regulator back seated before opening cylinder • Wear ear muffs and gloves • Slowly pressurize and monitor gauges • Don’t exceed lowest rated pressure Follow for more tips and check out Refrigeration Mentor for full training programs. #RefrigerationMentor #CO2 #hvacr #supermarketrefrigeration #refrigerationtraining