Belimo FS Series Replacement
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Belimo FS Series Replacement

Old gear train motors
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Before replacing actuator, damper must be inspected and
determined to be fully functional. See NFPA 80 &/or NFPA 105 for
Replacement of Old Gear Train Motors with Belimo FSxx Series
See
www.belimo.us/firesmoke
Contents
®
UL
................................................................................................................... 2
Code and Standard Issues ............................................................................... 2
NFPA 80 (Fire) & NFPA 105 (Smoke) .............................................................. 3
Local Code Approval ........................................................................................ 4
Cross Reference .............................................................................................. 5
Examples of various gear train motors and mounting ....................................... 8
Linkage Mounting ........................................................................................... 11
FSLF .............................................................................................................. 16
FSTF mounting .............................................................................................. 17
FSTF linkage kit mounting .............................................................................. 18
Direct Coupling ............................................................................................... 19
Wiring ............................................................................................................. 23
Contacts:
Chris Sheehan 203 749-3112
Mike Knipple 203 749-3170
Installer must be trained and experienced with repair
of fire and smoke dampers and actuators.
Gear Train Motors and Linkages - Replacements with Belimo
WARNING!
recommended check list.
Retrofits for more replacement instructions.
Larry Felker 775 355-2461 (775 250-4160 Cell)
Laure Pomianowski 775 355-2466
800 543-9038
WARNING!
March 2018
1

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  • Page 1: Table Of Contents

    Before replacing actuator, damper must be inspected and determined to be fully functional. See NFPA 80 &/or NFPA 105 for recommended check list. Replacement of Old Gear Train Motors with Belimo FSxx Series www.belimo.us/firesmoke Retrofits for more replacement instructions. Contents ®...

  • Page 2: Code And Standard Issues

    Fire Fighters Smoke Control System (FSCS) panel. Retesting is required. A permit and inspection may be required since connections to an alarm system have been touched. Gear Train Motors and Linkages - Replacements with Belimo March 2018...

  • Page 3: Nfpa 80 (Fire) & Nfpa 105 (Smoke)

    Old breakers often deliver below 115V and failed actuators may be due to power supply problems. For the Air Movement and Control Association damper maintainance manual go to: http://www.amca.org/publications/damper_maintenance.aspx Gear Train Motors and Linkages - Replacements with Belimo March 2018...

  • Page 4: Local Code Approval

    Local Code Approval While it is not detailed in codes, the following rules should be followed for selecting Belimo actuators for replacement: Check the technical specifications to ensure an “equal or better” actuator is used. • Temperature – the replacement actuator shall have been UL555S tested at the same or better temperature as the original actuator.

  • Page 5: Cross Reference

    Link, Typically direct couple to damper shaft if available. Otherwise, investigation necessary. Other Honeywell replacements are available. M8xxx 24 VAC Modulating FSAFB24-SR M8xxx w/ Switch 24 VAC Modulating FSAFB24-SR-S https://www.belimo.us/mam/americas/technical_documents/pdf- web/fire_and_smoke_doc/fire_smoke_competitive_replacement_data_reference.pdf for greater detail. Gear Train Motors and Linkages - Replacements with Belimo March 2018...
  • Page 6 FSNF120 US MS4109F1210 120 VAC On/Off FSNF120-S MS4120F1006 120 VAC On/Off FSAFA120 MS4120F1204 120 VAC On/Off FSAF120A-S MS4209F1007 120 VAC On/Off FSNF120 US MS4309F1005 120 VAC On/Off FSNF120 US Gear Train Motors and Linkages - Replacements with Belimo March 2018...
  • Page 7 Belimo actuators pass NOTE. Although an actuator may operate a larger sized damper UL555S at the same damper use the UL listed sizing. Call for assistance. sizes as the Honeywell. Gear Train Motors and Linkages - Replacements with Belimo March 2018...
  • Page 8 Two Auxiliary Switches Fixed 5° and 85° For more manufacturer specific instructions see Retrofit or Documentation Tabs in middle of page: https://www.belimo.us/firesmoke Belimo linkage kits: https://www.belimo.com/pim/mam /americas/technical_documents/d ata_sheets/man-air- acc/Mechanical_Accessories.pdf Mounting Methods Guide: https://www.belimo.us/mam/americ as/technical_documents/pdf- web/guides/mounting_methods.pdf Gear Train Motors and Linkages - Replacements with Belimo March 2018...

  • Page 9: Examples Of Various Gear Train Motors And Mounting

    Examples of various gear train motors and mounting In general, oil-filled spring return motors like the MA418 are straightforward replacements. In this case, the Belimo FSNF or FSAF may be direct coupled. The shaft spring should be examined and exercised to prove it is still operational. The fusible link cannot be seen, however it should release the shaft spring.
  • Page 10 The above applications will need linkages due to space constraints or accessibility ZG-AF US kit. This contains parts for several different ways to linkage the FSAF and FSNF series of actuators. Gear Train Motors and Linkages - Replacements with Belimo March 2018...

  • Page 11: Linkage Mounting

    Springs are under high torsion and may cause serious injury! If any external springs are present, exercise caution – wear face and hand protection Apply the most appropriate linkage mounting method for the geometric arrangement Gear Train Motors and Linkages - Replacements with Belimo March 2018...
  • Page 12 With no space to direct couple, the ZG-AF Leg kit has been used. Note the legs between actuator and duct Above are some ways in which Belimo linkages are used. The lower right picture is of an FSTF with ZG-TF112. This actuator is not generally used for retrofits as it is only 18 in-lb of torque, but in special circumstances, it is quite useful.
  • Page 13 Example of linkage that can be replaced by direct coupling The motor to the right can be replaced by direct coupling over the shaft. Use of linkages is not needed. Gear Train Motors and Linkages - Replacements with Belimo March 2018...
  • Page 14 Belimo linkage kits: https://www.belimo.com/pim/mam /americas/technical_documents/d ata_sheets/man-air- acc/Mechanical_Accessories.pdf Mounting Methods Guide: https://www.belimo.us/mam/americ as/technical_documents/pdf- web/guides/mounting_methods.pdf Gear Train Motors and Linkages - Replacements with Belimo March 2018...
  • Page 15 Gear Train Motors and Linkages - Replacements with Belimo March 2018...

  • Page 16: Fslf

    FSLF120 actuator. Fusible rods are no longer available from Ruskin. Where springs are defective, ball joints, rod, and a BAE 165 or Ruskin EFL are necessary. Rewiring is necessary. Gear Train Motors and Linkages - Replacements with Belimo March 2018...

  • Page 17: Fstf Mounting

    Given the typical space constraints of installed dampers, it is likely that all the actuator and linkage parts will need to be assembled as much as possible and then installed as an assembly. Possible alternate arrangements for damper clip. (FSNF, FSAF actuators shown.) Gear Train Motors and Linkages - Replacements with Belimo March 2018...

  • Page 18: Fstf Linkage Kit Mounting

    Ball joints and 5/16” Rod not included It is assumed that the bracket here will be installed on an existing sleeve or the Prefco mounting plate shown in the full damper pictures below. Belimo brackets and parts are shown in our Mechanical Accessories Guide: https://www.belimo.com/pim/mam/americas/technical_documents/data_sheets/m...

  • Page 19: Direct Coupling

    Rigid mounting by jamming the stud into the U-slot of actuator is NOT usually best. Gear Train Motors and Linkages - Replacements with Belimo March 2018...
  • Page 20 Clamp The geometry of linkages changes the torque translation between the actuator and the damper. See Belimo’s Mounting Methods Guide for a description of the mathematics. As long as it is mechanically solid, the anti-rotation strap may be bent to fit height.
  • Page 21 Figure 3 Anti - rotation strap 11695 LF- P Bend strap at perforations to The heavier duty 11414 AF- P adjust for necessary height may be ordered when needed Gear Train Motors and Linkages - Replacements with Belimo March 2018...
  • Page 22 Depending on the geometry, any number of mounting arrangements are correct. Alternately, the anti-rotation strap can be attached to any Belimo linkage, an electrical J-box cover plate, or to a pieced of U-channel. It is important to remember that the ducts are fall-away. The actuator mounting cannot interfere with the ability of the duct to fall from the damper.

  • Page 23: Wiring

    Belimo Mechanical 165 F Thermodisc Anti- rotation FSLF strap FSNF ½” threaded connector Chase nipple 2x 4 box and blank cover Existing flex connector and incoming power wires Gear Train Motors and Linkages - Replacements with Belimo March 2018...
  • Page 24 Wiring is shown below. Fusible link DAMPER ACTUATOR WIRING SMOKE DAMPER Smoke Detector or Relay from area smoke detection system N or 120 or 24 VAC BELIMO FSxx ACTUATOR Gear Train Motors and Linkages - Replacements with Belimo March 2018...
  • Page 25 Auto. Damper is normally Open; check sequence of operation. Damper Numbers or Location Identifying Numbers..……………………………………………………… Date……-…………-..…… Contractor………………………………………………………………………………………………………. Service Technician (Print)……………..……………………………………………………………………… Service Technician (Signed)……………..…………………………………………………………………… Phone Number (……)……………………………………………… Notes…….……………………………………………………………………………………………………… ……………..……………………………………………………………………………………………………. ……………...…………………………………………………………………………………………………… Gear Train Motors and Linkages - Replacements with Belimo March 2018...

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