The SilentMaster S900r is MD’s flagship central vacuum power unit, engineered for the largest homes, demanding retractable-hose installations and commercial environments where exceptional suction and long-term durability are essential. With more than 900 airwatts of cleaning power, it delivers outstanding performance across large and complex central vacuum systems.
Its dual three-stage motors provide tremendous suction, while heavy-duty steel construction and MD’s two-stud mounting bracket create an exceptionally strong and stable installation. Backed by a 25-plus-year track record of reliable service, the SilentMaster S900r has proven itself in some of the largest homes and busiest businesses. It is protected by MD’s outstanding 12-year warranty for additional long-term peace of mind.
The SilentMaster is available in two electrical configurations:
S900r – 120 volts: Requires a dedicated 30-amp circuit and specialty electrical outlet. When purchased from Pittsburgh Central Vacuum, the required outlet is included with the power unit.
S900r2 – 240 volts: Operates from a standard 15-amp, 240-volt circuit and outlet.
For installations where an ordinary residential power unit simply isn’t enough, the SilentMaster S900r combines extraordinary cleaning power, rugged construction and decades of proven reliability in MD’s most capable central vacuum system.
The SilentMaster S900r is MD’s flagship central vacuum power unit, engineered for the largest homes, demanding retractable-hose installations and commercial environments where exceptional suction and long-term durability are essential. With more than 900 airwatts of cleaning power, it delivers outstanding performance across large and complex central vacuum systems.
Its dual three-stage motors provide tremendous suction, while heavy-duty steel construction and MD’s two-stud mounting bracket create an exceptionally strong and stable installation. Backed by a 25-plus-year track record of reliable service, the SilentMaster S900r has proven itself in some of the largest homes and busiest businesses. It is protected by MD’s outstanding 12-year warranty for additional long-term peace of mind.
The SilentMaster is available in two electrical configurations:
S900r – 120 volts: Requires a dedicated 30-amp circuit and specialty electrical outlet. When purchased from Pittsburgh Central Vacuum, the required outlet is included with the power unit.
S900r2 – 240 volts: Operates from a standard 15-amp, 240-volt circuit and outlet.
For installations where an ordinary residential power unit simply isn’t enough, the SilentMaster S900r combines extraordinary cleaning power, rugged construction and decades of proven reliability in MD’s most capable central vacuum system.
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