BELIMO FIRE AND SMOKE DAMPER ACTUATORS 2

Buy Belimo Fire and Smoke Damper Actuators - 2

Fire and Smoke Spring Return Actuators

FSLF Series

•FSLF24 (-S) US, FSLF120 (-S) US

The FSLF spring-return is intended for the operation of and combination and in ventilation and air-conditioning systems.

•FSLF230 (-S) US

The FSLF spring-return is intended for the operation of and combination and in ventilation and air-conditioning systems. The meets requirements of UL555 and UL555S when tested as an assembly with the and meets requirements of UBC for 15 second opening and closing.

FSNF Series

•FSNF24 (-S) US, FSNF120 (-S) US

The FSNF spring-return is intended for the operation of and combination and in ventilation and air-conditioning systems. The meets requirements of UL555 and UL555S when tested as an assembly with the and requirements of UBC for 15 second opening and closing at 350°F.

Square footage of operated depends on make and model and the temperature required. The typical and requires from 5-15 in-lb of torque per square foot at 250°F – 350°F under dynamic load (2400 fpm velocity). The FSNF operates multi-section using multiple for multiple sections. Some of the methods used are shown below. This is a direct coupled .

•FSNF230 (-S) US

The FSNF spring-return is intended for the operation of and combination and in ventilation and air-conditioning systems. The meets requirements of UL555 and UL555S when tested as an assembly with the and also meets requirements of UBC for 15 second opening and closing. Square footage of operated will depend on make and model and the temperature required. The typical US - requires from 5-15 in-lb torque per square ft.

FSAF Series

•FSAF24 (-S) US, FSAF120 (-S) US

Large combination and are operated by Belimo FSAF series . draw no more than 11VA at 120V or 24V. Where auxiliary switches are required for signaling, starting fans, or position indication, -S model , blade, or proximity switches are provided. Smaller employ Belimo FSLF or FSNF .

•FSAF230 (-S) US

For two-position control of UL555S rated in HVAC. The is mounted directly to a shaft or jackshaft 3/8” to 1.05” in diameter by means of its universal clamp. A crank arm and mounting brackets are available if the cannot be direct coupled to the jackshaft or shaft. Where auxiliary switches are required for signaling, starting fans, or position indication, -S model , blade, or proximity switches shall be provided. Smaller employ Belimo FSLF or FSNF per manufacturer recommendations.

•FSAF24-SR (-S) US

For proportional modulation of UL555S rated in HVAC. sizing should be done in accordance with the manufacturer’s specifications. Proportional , and combination and are controlled by Belimo FSAF24-SR .

•FSAF24-BAL(-S) US

For 3-position control of UL555S rated in HVAC. The FSAF24-BAL is specifically designed to balance the air flow in ducts and simultaneously provide control of and . The are designed so that they may be used for either clockwise or counter clockwise failsafe operation. are manufactured under ISO9001 International Quality Control Standards. These have an adjustable Maximum Opening Potentiometer which is used by the TAB contractor to adjust flow to that portion of the system fed by the .

The springs close if either the detector or alarm system removes power from it. The springs closed if the primary temperature thermodisc opens due to high ambient of >165°F. The drives full open if either the control system 100% open override or Fighters Control Station override is activated. springs close again if the thermodisc of a combination and opens due to high temperature (typically 250°F).

Balancing Air Flow with and

Air handling systems must be balanced to obtain the correct pressures to establish design flow in all floors and zones. and/or are required in barrier walls. This requires two in modern systems - the barrier and the balancing .

Shaft take-offs to floor and zones are installed in and rated walls and a and is required in or very near the wall. The goal is to protect people from the effects of toxic that is generated in s both before and after activation of sprinklers if they are present.

Balancing all supply ducts is required to maintain proper air volume or inlet static pressure for VAV boxes.

Rather than installing two - a combination and and a separate balancing - one can be installed for both purposes. In general, for ducts 4 sq.ft. or less, the cost is equal. But for up to 12 sq.ft., a considerable amount of money is saved since the extra cost for the is less than that of a itself, which also saves on installation labor.