Hoffman Watchman WCSD-12-20B-MA Duplex Condensate Pump (160013)

Hoffman 160013 Watchman WCSD-12-20B-MA

The Hoffman Watchman WCSD-12-20B-MA is a duplex condensate return unit, designated by the “D” in the model number. This mechanical configuration features a 12-gallon cast iron receiver paired with two independent centrifugal pumps. This dual-pump setup provides 100% redundancy, ensuring the steam system remains functional if one pump requires maintenance. The “MA” designation indicates the inclusion of a mechanical alternator, which physically switches the lead pump during each cycle to ensure even mechanical wear across both units.

The electrical system of the WCSD-12-20B-MA manages two 1/3 HP motors through a specialized alternating switch. This configuration ensures that if the water level rises faster than one pump can handle, the second pump is electrically activated to provide peak load support. Stable electrical phase management across both motors reduces the risk of vibration-induced seal failure, maximizing the MTBF for critical boiler feed applications in large commercial or institutional facilities.

Key Features of Hoffman WCSD-12-20B-MA

• Duplex pump design for 100% system redundancy
• 12 gallon cast iron receiver for high-volume storage
• Mechanical Alternator (MA) balances pump runtime
• Dual 1/3 HP motors for reliable performance
• Rated performance per pump: 18 GPM at 20 PSI
• Cast iron/Bronze-fitted construction for 175 PSI
• Critical for hospitals and high-demand facilities