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The RESEARCH PRODUCTS 6835 is a rectangular zone damper with an integrated synchronous motor, designed for use in residential and light commercial HVAC zoning systems. The damper operates on a power-closed, spring-open actuation cycle, driven by a 24 VAC synchronous motor rated at 60 Hz, 6 watts, and 12 VA. The galvanized steel construction provides corrosion resistance in ductwork environments. Measuring 15-7/8 inches wide by 11.813 inches tall, this unit fits rectangular duct openings common in both residential trunk lines and light commercial branch runs. Licensed HVAC technicians install this damper as part of a multi-zone forced-air system.
This damper is suited for residential and light commercial zoning applications where rectangular duct configurations are used. The power-closed, spring-open design provides a fail-safe open position during a power loss event, which is a common requirement in residential zoning layouts. Smaller residential sizes in the Aprilaire lineup use a flexible link design, while larger light commercial sizes use actuators matched to higher torque requirements. The 6835 fits within this product family for standard rectangular duct sizing in split-system and air handler installations.
Designed for use in residential and light commercial rectangular duct zoning systems. Compatible with 24 VAC zoning control systems requiring a power-closed, spring-open rectangular zone damper.
Installation should be performed by a licensed HVAC technician familiar with forced-air zoning systems. Disconnect power to the air handler and zone control board before installing or wiring the damper motor. Verify the duct opening dimensions match the damper face size before securing the bottom mount. Low-voltage wiring to the zone control panel should comply with NEC requirements for Class 2 circuits.
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