Passive fresh air inlet ducts waste energy, are sometimes plugged and therefore become unsafe.. Alternatively, HOYME Motorized Dampers are safe as there is no need to plug the duct. The result is added comfort, added safety and a saving in energy costs.

Series HOM dampers automatically control fresh air for combustion in residential and commercial buildings. Diameters from 4" to 9". For larger commercial sizes, several dampers are mounted in tandem with end switches connected in series. For retrofit and new installations.

General Damper Identification: i.e HOM-0511-SF1

Series - Diameter, motors, relays - End switch, Fuse, No.of switches

HOM - 5" Dia., 1 motor, 1 relay - S End Switch, F Fuse, 1 Switch & Fuse

Features Include:

• attaches to a the 6" air supply duct.
• Interlocks with the safety control system of gas, propane and oil fired appliances. Guaranteed to be open before the fire starts.
• Certified as required by National Gas Code, fail-safe open, power closed.
• Durable, patented HOYME 'spring motor drive' with nylon bearings.
• 24VAC, but compatible with MilliVolt and 120 VAC safety control systems.

Options Include:

1. Additional Relay and end-proving-switch to control two appliances

2. Interface Adaptors to provide interlocking connection to Millivolt DC and Line Voltage AC controls for commercial buildings

3. TEST/RUN switch to automatically disconnect circuits for testing damper and appliance operation. Ideal for commercial applications.

Series HOM dampers are connected to the appliance transformer and are power closed. HOM dampers drop open by gravity and do not use power when the appliance fires.