Description
The Honeywell MARD-6 is a 6-inch round zone damper engineered for reliable airflow control in residential and light commercial HVAC zoning systems. Featuring an integrated 24Vac floating actuator with power open/power closed operation, this three-wire damper provides precise, responsive zone management without the need for a separate actuator or spring-return mechanism.
Key Features
- 6-inch round duct damper with factory-mounted actuator
- 24Vac power open / power closed operation — no spring return required
- Three-wire floating actuator for direct zone panel compatibility
- Compact, integrated design simplifies installation in round ductwork
- Compatible with standard 24Vac zoning panels and controllers
- Ideal for residential and light commercial zoning applications
Power Open / Power Closed Advantage
Unlike spring-return dampers, the MARD-6 uses dedicated power signals to both open and close the blade. This provides positive blade positioning in both directions, reducing the risk of unintended airflow and improving system balance across multiple zones.
Three-Wire Floating Control
The floating actuator accepts a common wire plus separate open and close signal wires, making it straightforward to wire directly to most residential and commercial zone control panels. This wiring method allows the damper to stop and hold at any position when both signal wires are de-energized.
Specifications
- Model: MARD-6
- Duct Size: 6 inches round
- Actuator Voltage: 24Vac
- Control Type: Power Open / Power Closed
- Wiring: Three-wire floating
- Brand: Honeywell









