24vFireSmoke175#2PosSR 2sw Act
An often-overlooked safety feature, a fire/smoke damper lets you control the venting of your fireplace. A two-position damper has one open position for normal fire use and one closed position to limit air intake, preventing backdraft into the chimney and fireplace. It is typically installed in the top or rear of a fireplace. The Honeywell MS8120F1200 Motorized Two-Position Damper Actuator on Damper - /U MS8120-c2 -- 24 VDC Fire Smoke 175# 2SW Act is designed to offer a more efficient way of motorizing this
All control components operating on 24vdc. The Smoke Actuator controls smoke (conditioned) air, and the Fire Actuator controls fire (non-conditioned) air. Features an emergency damper spring return, which prevents uncontrolled closing of the damper sleeve if not released from either the Smoke or Fire Actuator.
The Honeywell Fire Damper Actuator (24V) is a two-position, spring return damper actuator designed for use with the company's line of fire/smoke dampers. The actuator provides safe and reliable on/off control of ventilation dampers, and is suitable for quiet motor applications in hotels, office buildings, schools, hospitals and other facilities that need to maintain clean air quality and fire-resistance.
A 24 VDC Two Position Damper Actuator. Robust and reliable, it makes it ideal for challenging conditions in the kitchen and food service establishments, outdoor patios, breezeways, fire-rated spaces such as stairwells and kitchens, or wherever a small actuator is required.
The MS8120 is a 24V general use damper actuator. The MS8120-C2 is the control calibrated version and the Damper Actuator has two positions available (Fully Open or Fully Closed). It is suitable for use where fire smoke exhaust extraction is required with the unit fully closed, especially for use with multi speed fans/motors. Examples are computer rooms, computer data centers, server rooms, data processing applications, kitchens, and generator rooms.
All Honeywell Power Limit Controls are factory set for 12- or 24-volt systems. Most applications will not need to be set by the installer. Set the power limiter on the top of its travel for 12-volt applications, or to a position in between for 24-volt applications. Honeywell recommends setting a lower limit for long periods of heating and a higher limit when short cycling. A lower limit setting will conserve energy and extend system life."
The MS8120F1200 is a 2-wire normally closed (N/C) 24 VDC fast acting multi-position electric actuator for damper control. The output shaft and its bushing are made of stainless steel for corrosion protection. The actuator provides fully proportional control and includes a built-in force limiting feature that can be disabled by the user if needed. It may operate in Normally Open (N/O) or Normally Closed (N/C) on or off positions on the same channel .