Description
The Rheem-Ruud 42-24166-87 Dual Pressure Switch is an essential part of HVAC systems since it has the responsibility of operating a significant function of safety and reliability. The Dual pressure switch is designed to be used with positive pressure and negative pressure systems thus making it suitable for all HVAC systems. Used, it measures the pressure of air in the furnace or air conditioner in use and this is done by the switch. If pressure is out of the set range the switch turns on or off that system so that it will be performing at optimum and safe level.
