MODULATING ZONE CONTROL DAMPERS
Fahrenheit also provides numerous solutions for light commercial Zone Control. Small commercial building owners cannot afford to install expensive VAV solutions. Using Fahrenheit’s M Series Zone Dampers paired with any of our control panels will offer the same temperature control as a VAV system at a fraction of the cost. Some prime candidates for our zoning systems are small office buildings, restaurants, stores, nursing homes or any business that requires complete control over the heating and cooling of different spaces.

STAND ALONE DAMPERS
The MM Series damper is a modulating stand alone zone damper. The damper is controlled by the S-T thermostat which is installed in the zone that needs better temperature control. The S-T thermostat has a special algorithm that will modulate the damper according to the set point of the thermostat and whether or not there is cooling or heating within the duct. The MM Series damper is completely stand alone and does not control the HVAC equipment. It comes with a duct thermo-sensor and PC Board that connects to the thermostat and actuator. It comes in round or rectangular damper, or a VAV diffuser option which can be seen here. When more than one damper or diffuser is needed for a specific area, the DM Series (damper) or SE-HC-D (diffuser) can be used as drone units controlled by the master unit (MM Series or SE-HC-M).
Modulating Zone Control Dampers
Modulating Round Damper (MRD)
  • Floating point 24V 2 VA 3-wire power open, power close high torque actuator
  • Primarily for light commercial applications with static pressure up to 2” WC
  • Nylon bushings for quiet, long lasting operation
  • Constructed of galvanized smooth steel, double beaded for rigidity
  • Offered in round diameters of 6”, 7”, 8”, 9”, 10”, 12”, 14”, 16”, 18”, 20”
Modulating Rectangular Damper (MQD)
  • Floating point 24V 2 VA 3-wire power open, power close high torque actuator
  • Primarily for light commercial applications with static pressure up to 2” WC
  • Available in all standard sizes starting at 8”x8” and increasing in two inch increments with custom sizes available
  • When ordering a side mount rectangular damper: A” x B” dimensions will be Width (always the larger dimension) x Height (always the smaller dimension) and the actuator and mounting plate will always be mounted on the B dimension unless the dimensions are a square in which case there is no need to specify side or bottom mount
  • When ordering a bottom mount rectangular damper: A” x B” dimensions will be Width (always the larger dimension) x Height (always the smaller dimension) and the actuator and mounting plate will always be mounted on the A dimension
Stand Alone Dampers
Master Modulating Round Damper (MMRD)
  • Comes with a thermo-sensor and actuator PC Board
  • Floating point 24V 2 VA 3-wire power open, power close high torque actuator
  • Primarily for light commercial applications with static pressure up to 2” WC
  • Nylon bushings for quiet, long lasting operation
  • Constructed of galvanized smooth steel, double beaded for rigidity
  • Offered in round diameters of 6”, 7”, 8”, 9”, 10”, 12”, 14”, 16”, 18”, 20”
  • The Performance Aire S-T Thermostat is designed to work with the MMRD
Master Modulating Rectangular Damper (MMQD)
  • Comes with a thermo-sensor and actuator PC Board
  • Floating point 24V 2 VA 3-wire power open, power close high torque actuator
  • Primarily for light commercial applications with static pressure up to 2” WC
  • Available in all standard sizes starting at 8”x8” and increasing in two inch increments with custom sizes available
  • When ordering a side mount rectangular damper: A” x B” dimensions will be Width (always the larger dimension) x Height (always the smaller dimension) and the actuator and mounting plate will always be mounted on the B dimension unless the dimensions are a square in which case there is no need to specify side or bottom mount
  • When ordering a bottom mount rectangular damper: A” x B” dimensions will be Width (always the larger dimension) x Height (always the smaller dimension) and the actuator and mounting plate will always be mounted on the A dimension
  • The Performance Aire S-T Thermostat is designed to work with the MMQD

Download Fahrenheit Series Brochure
Download Fahrenheit Series Catalog