Liebert 128754P1S Drain Valve 320788-704 or a furnace that fails

or a furnace that fails to ignite because the pressure switch cannot detect sufficient draft

In a Reznor gas-fired heater

75-inch Type 1A mechanical seal configuration features high-grade Buna-N elastomers paired with a Carbon/Ceramic face set to ensure a leak-proof interface under demanding hydraulic conditions

ensuring a direct drop-in fit for existing Copeland-controlled refrigeration architectures

ensuring minimal downtime during critical service calls

Liebert 128754P1S Drain Valve 320788-704 or a furnace that failsThe Liebert 128754P1S Drain Valve with Fitting is a critical OEM component designed for high precision condensate management within precision cooling systems and computer room air conditioners (CRAC). Engineered to maintain the operational integrity of Liebert environmental control units, this replacement drain valve ensures efficient fluid evacuation to prevent moisture buildup and potential hardware damage in sensitive data center infrastructure.