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The 3085 Series Commercial Damper uses the same quality, multi-opposed blade aluminum housing as the 3150 Series, but features a Belimo 24vac LMB motor, Power Open / Power Close actuator with a 90 second design actuation time. Quality American built, all aluminum and stainless steel damper with a 20 year proven history, with commercial 1/2 inch drive shaft. Rattle-free nylon bushings and multiple opposed blade design makes this the “quiet” choice. Available Motor Options (see motor listing for more information on these motors).
Please call in your order on any of the below options; subject to change without notice.
Our 3085 Series Rectangular damper uses the powerful and industry proven Belimo LMB commercial grade actuator to both power itself open and closed. Yet the 24vac motor uses only a stingy 2.2 watts of power since the precision gear train motor multiplies the torque for plenty of power, giving our 3085 series damper the ability to control up to two inches of static pressure for any residential and most commercial applications. These dampers have been in production for twenty years, and are sold nationally under a major OEM label. The 3085 Series Rectangular Damper is sold directly to you without the chain of markups common in the HVAC industry. This damper uses the same quality aircraft grade aluminum and nylon bushing construction as our more economical 3150 series of spring return rectangular dampers, but uses the Belimo LMB24 commercial motor mounted on an industry standard 1/2 inch drive shaft, for outstanding long term, trouble free performance.
Motor Options for incredible versatility in many different applications:
1. Standard Motor: Belimo LMB24-3-T commercial grade motor. Our most popular upgrade, the precision Swiss engineered Belimo motors offer power open power closed reliability but has a unique one wire trigger capability, making it as easy as a spring return damper to wire to a basic thermostat-with no relay needed. Two wires provide full time 24vac voltage to the motor, while the third terminal wires directly to a standard thermostat, like our Robert Shaw RS2110 . An integral switch on this motor will even reverse damper direction, 5 year warranty, 95 second operation. The Belimo LMB24-T Motor will also stop and hold any position when power is removed, and can be used with a standard Single Pole Double Throw (SPDT) center off switch to allow easy day to day or seasonal air balancing, and has infinite blade minimum and maximum positions. Also, you may want to consider this motor if also using our Super Duty round dampers, so all motors match. Works great on zone control systems as a 3 wire damper.
2. Belimo LMB24-SR-T Modulated motor. (cost: call Retrozone) Add an additional $64 for SGA surface mount or SGF flush mount proportional controller (see pictures below) . -Two to ten volts DC, 4 to 20 ma modulating motor with variable position control . This is a specialty application motor that is widely used in the building automation industry for modulated control, and will not work with our standard zone control systems as offered on Ebay. Add the Belimo SGA or SGF wall mount control that enables complete range control from 0 to 100% by a simple twist of the wall mount dial control-just rotate to whatever position you want the damper in, and walk away.
3. Belimo commercial Spring Return Motor, Add $20.00 to cost as basic damper above: When you need two wire spring return fail safe operation but want commercial grade power and reliability, the swiss designed TF24 US spring return Motor is the motor option for you. This motor is shipped either Normally open or Normally closed, but can be field reversed by dismounting and turning over.
4. Odd Size Dampers, Add $10 to the basic cost of damper above. Available in one inch increments expect longer delivery times. How to order a standard damper: just buy the standard damper in the size range you want (small, medium, or large), then send us a note telling us the size you want, and what side of the damper you want the motor mounted on Belimo Carrier or Trane motor (Please call factory)