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Buy Barber Coleman Damper Motor

On a boiler, the damper is an adjustable iron plate or shutter that’s built into the boiler flue as a tool to help regulate the flow of air through it. The damper is comprised of blades or louvers to regulate the air flow. Usually, dampers include an electro-mechanical device that opens and closes the damper to prevent heat from escaping the flue during the burner’s rest period. That control device is the damper motor. A damper basically stops or regulates the flow of air inside a duct, chimney, VAV (variable air volume) box, air handler, or other air handling equipment.

A damper may be used to cut off central air conditioning (heating or cooling) to an unused room, or to regulate it for room-by-room temperature and climate control. A valve or plate can play the role of a damper. If heating or cooling is not required in a specific area where there is central air conditioning, dampers could be used. Damper motors can vary based on wattage, voltage, general size and return method, such as a spring return. Dampers also help to regulate temperature room-by-room and for climate control. Its operation can be manual or automatic.

Manual dampers are turned by a handle on the outside of a duct. Automatic dampers are used to regulate airflow constantly and are operated by electric or pneumatic motors, in turn controlled by a thermostat or building automation system.

Apart from being a top manufacturer of actuators, controllers and other types of HVAC controls, Barber Coleman Dampers are equally popular in industrial, commercial, or residential settings.

There are different types of dampers:

  • Zone dampers

This damper (also known as a volume control damper or VCD) is used to control the flow of air in an HVAC system. In order to improve efficiency and occupant comfort, HVAC systems are commonly divided up into multiple zones. For example, a building where the system is installed is divided into specific areas and each of these specific areas are assigned specific heating or cooling zones. Like in a house, the main floor may be served by one heating zone while the upstairs bedrooms are served by another. In this way, the heat can be directed principally to the main floor during the day and principally to the bedrooms at night, allowing the unoccupied areas to cool down.

Zone dampers vary in type based on the specific area of use. Typical zone dampers in home HVAC systems are electrical in nature. For large commercial establishments, compressed air or vacuum maybe be used instead of it being electrically driven. In either case, the motor is usually connected to the damper via a mechanical coupling.

For electrical zone dampers, there are two principal designs - one which uses a spring-return mechanism and a shaded-pole synchronous motor and another design where the motor is often a small shaded-pole synchronous motor combined with a rotary switch that can disconnect the motor at either open or closed positions or also known as the two stopping points (”damper open” or “damper closed”). In this way, applying power to the “open damper” terminal causes the motor to run until the damper is open while applying power at the “close damper” terminal causes the motor to run until the damper is closed. For vacuum- or pneumatically-operated zone dampers, the thermostat usually switches the pressure or vacuum on or off, causing a spring-loaded rubber diaphragm to move and actuate the damper.

The electrically powered damper uses a spring-return mechanism and a shaded-pole synchronous motor. In this case, the damper is normally opened by the force of the spring but can be closed by the force of the motor. Removal of electrical power re-opens the damper. This style of damper is advantageous because it is “fail safe”; if the control to the damper fails, the damper opens and allows air to flow. However, in most applications “fail safe” indicates the damper will close upon loss of power thus preventing the spread of smoke and fire to other areas. These dampers also may allow adjustment of the “closed” position so that they only obstruct, for example, 75% of the air flow when closed.

Advanced dampers may also support positions other than fully open or fully closed and are usually capable of reporting their current position and, often, the temperature and volume of the air flowing past the smart damper.

Regardless of the style of damper employed, the systems are often designed so that when no thermostat is calling for air all dampers in the system are opened. This allows air to continue to flow while the heat exchanger in a furnace cools down after a heating period completes.

  • Fire dampers

These are called fire dampers because they are held open by fusible links. When heat is generated, the links break and the damper is closed by a spring. Fire dampers are usually fitted at junctions where ductwork passes through fire compartment walls / fire curtains as part of a fire control strategy. In normal circumstances, these dampers are held open by means of fusible links. When subjected to heat, these links fracture and allow the damper to close under the influence of the integral closing spring. The links are attached to the damper in such a way that the dampers can be released manually for testing purposes. The damper is provided with an access door in the adjacent ductworks for the purpose of inspection and resetting in the event of closure. In case the damper needs to be reset, there is an alternate access door specifically for this purpose or for inspection.

The replacement of a damper motor is quite easy, requiring only the removal of a setscrew that holds the motor to the damper. Replacement parts and kits are available at HVAC plus.

Barber Coleman is a key player in the HVAC controls market and manufactures top quality products that are accepted globally. They make a variety of other HVAC parts, such as valve parts, control boxes, control motors, and thermostats. They also manufacture a large variety of sensors, indicators, valves, ignitors, motors, thermocouples, alarms, and other parts and products for commercial, industrial and home use. Their products for the Heating Ventilating and Air Conditioning industry are well-known and respected in the world market.

A Barber Coleman damper motor is used to adjust the position of a damper. Dampers typically consist of either blades or louvers that open and close to regulate air flow. Manual dampers are operated by hand, and automatic dampers are operated by either electric or pneumatic motors. These motors are in turn controlled by thermostats or building automation systems.

The size, wattage, and voltage of damper motors vary widely. They are used for climate control and for controlling temperature room-by-room. Barber Coleman dampers are available for commercial, industrial, and residential applications.

Zone Dampers

Zone dampers are often known as volume control dampers (VCDs). They simply control the volume of air circulating in a HVAC system. To maximize efficiency, such systems are usually divided into multiple zones.

Dampers are used to regulate the air flow between these zones. This facilitates the re-direction of heated or cooled air toward and away from occupied and unoccupied areas. For example, the main floor can be heated by day and the upstairs bedrooms can be heated relatively more at night.

Large commercial dampers may be operated by compressed air or vacuum. Typical residential dampers are operated by electrical damper motors.

Today's HVAC systems are often designed so that all automatic dampers remain open when no thermostat is calling for air. For example, the air can continue to flow through the system as a heat exchanger cools down after a heating period is completed.

Fire Dampers

Fusible links hold fire dampers open. When a certain level of heat is generated, these links are designed to break. A spring then closes the damper. Fire dampers are critical components in many fire control plans. They are traditionally located in ductwork where it passes from one fire compartment to another.

Access doors typically are situated so that such dampers can be regularly tested or re-opened in the event of closure. There is typically a manual release that allows for the testing of such a damper.

When you need to replace a damper motor, look to HVAC Plus. Replacement of such motors is usually fairly easy. A set screw that holds the motor to the damper is removed and the motor is replaced.

Barber Coleman is a respected name in HVAC controls, valves, sensors, motors, ignitors, and many other HVAC parts. At HVACPlus.com, you'll find the Barber Coleman replacement parts and kits that are required for your project. We are proud to include Barber Coleman products among the 500,000 items that we offer online. In addition to Barber Coleman parts, you'll find the replacement parts that you need from all of the most respected names in the HVAC industry like Honeywell, Johnson Controls, Trane, General Electric and Lennox. The parts that you require are only a few clicks away.