Belimo FSNF120 Series Operating and safety instructions

Replacement of Safe-Air Honeywell ML & MS
Motors with Belimo FSNF120 Series
Contents
UL®.............................................................................................................2
Code and Standard Issues.........................................................................2
NFPA 80 (Fire) & NFPA 105 (Smoke) ........................................................3
Local Code Approval ..................................................................................4
Cross Reference.........................................................................................5
SAFE-AIR damper with Honeywell Motor .................................................10
Direct Coupling.........................................................................................11
Linkage mounting.....................................................................................14
Miscellaneous parts..................................................................................15
Thermal sensor replacements – BAE165 US............................................16
Auxiliary Switches.....................................................................................16
Wiring.......................................................................................................17
Building Official / Fire Marshal Notification Form.......................................19
Contacts:
Chris Sheehan 203 749-3112 Larry Felker 775 355-2461 (775 250-4160 Cell)
Mike Knipple 203 749-3170 Laure Pomianowski 775 355-2466
800 543-9038
www.belimo.us/firesmoke
WARNING!
Installer must be trained and experienced with repair
of fire and smoke dampers and actuators.
WARNING!
Before replacing actuator, damper must be inspected and
determined to be fully functional. See NFPA 80 & NFPA 105 below for
checklist.
Safe-Air Honeywell ML & MS Motors with Belimo FSNF120 Series March 2018
1

UL®
Code and Standard Issues
In general, the administrative section of codes state that all mechanical and electrical systems
must be kept in working order and an individual section may state that all life safety devices and
systems must be operable. NFPA 80 (Fire) & NFPA 105 (Smoke) require periodic testing and
repair of dampers as soon as possible after any deficiency is uncovered.
Chapter 7 IBC & IFC "Containment” Dampers
Commissioning
End of first year
Every 4 years except in hospitals every 6 years
Chapter 9 IFC "Smoke Control System” Dampers
Dedicated
Non-dedicated
Commissioning
Commissioning
Semi-annually Annually
Chapter 9 IBC & IFC
Fire detection & Smoke control systems
Dedicated
Non-dedicated
Weekly self-test Not required
Fire & smoke dampers are appliances and field replacement of components is required when
failure of any component occurs.
The Authority Having Jurisdiction (local Fire Marshal and/or Building Official) must be
consulted if any blade or auxiliary switches are employed and are connected to the fire
alarm system or to a 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.
In the “Marking & Application Guide, Dampers for Fire Barrier and Smoke Applications &
Ceiling Dampers” April 2013 by Underwriters Laboratories Inc.®, page 6 they state:
DAMPER ACTUATORS
“… field mounting or substitution of actuators is not covered within the scope of the UL
certification of the product. However, this does not necessarily preclude replacement of
ac•tuators in the field. Like any appliance, field servicing of these products is not covered
under the scope of the UL certification and factory follow-up service program. As with any
part of the damper, it is expected that replacement of actuators in the field be done in
accordance with the damper manufacturer’s normal field servicing program.”
Safe-Air Honeywell ML & MS Motors with Belimo FSNF120 Series March 2018
2

NFPA 80 (Fire) & NFPA 105 (Smoke)
See NFPA 80 & NFPA 105 for details. The damper cleaning and examination check
list here is based on them.
Damper installation shall meet code requirements. Fire stopping and drywall integrity shall be
confirmed. Damper blades shall be in plane of wall. Duct shall be fall away with no fasteners
connected to damper sleeve.
a. Dampers and ducts shall be cleaned of all foreign debris and dust build-up.
b. All exposed moving parts of the damper shall be dry lubricated as required by the
manufacturer. Do not use oil as it draws dirt.
c. Damper shall be examined without defective old motor or new actuator to determine:
i. The damper shall fully close from the open position.
ii. Damper shall fully open from the closed position.
iii. There are no obstructions to the operation of the damper. The damper shall not be
blocked from closure in any way due to rusted, bent, misaligned, or damaged
frame or blades. The damper shall not have defective hinges, side &/or blade
seals, or other moving parts. The damper frame shall not be penetrated by any
foreign objects that would affect operation.
d. If the damper is equipped with a fusible link, the link shall be removed for testing to
ensure full closure and lock-in-place if so equipped. If the link is damaged or painted, it
shall be replaced with a link of the same size, temperature, and load rating.
e. The fusible link shall be reinstalled after testing is complete.
After installation and wiring of new actuator it shall be tested.
a. The checklist may be customized using material here and in NFPA Standards. Multiple
geometric configurations of springs, fusible link, thermal sensor(s), and actuation are
possible. Confirm with AHJ if any additional requirements exist.
b. Electric thermal sensors, if present, must be tested and replaced if defective.
c. The test shall be conducted with normal HVAC airflow.
d. When equipped with smoke detection activation, the smoke detector shall be
activated and damper operation observed.
A record of all repairs must be kept and made available to AHJ.
Test voltage input to actuators and repair as necessary if voltage is not correct.
Old breakers often deliver below 115V and failed actuators may be due to power
supply problems.
NFPA requires damper inspection and repair of dampers.
See www.nfpa.org. for Standards. Details not covered here.
Safe-Air Honeywell ML & MS Motors with Belimo FSNF120 Series March 2018
3

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. 250˚F or 350˚F are standard.
•Time – the replacement actuator shall drive open and spring closed at a speed equal or
faster than presently required by codes. (The AHJ may grant an exception and
“grandfather” slower actuators where the original actuator was slower.)
•Torque – replacement actuator shall have equal or greater torque than the failed actuator.
•Voltage – replacement actuator shall have the same voltage rating as the original.
•Amperage – the replacement actuator(s) shall not draw more amperage than the
original(s) and cause the total connected amp draw on a circuit breaker to be greater
than allowed by electrical code.
•Final Testing – actuated damper and associated devices shall be tested for proper
operation. See Acceptance testing details below.
(Mnemonic device: TTT-VAT)
For the Air Movement and Control Association damper maintainance manual go to:
http://www.amca.org/publications/damper_maintenance.aspx
WARNING!
In all cases, installation must comply with any and all local electrical
and life safety codes. Operation of the system after installation must
be performed to verify proper damper cycling. Final checkout requires
verifying correct function.
WARNING!
Note that where any fire alarm wiring is touched, the fire department
must be informed.
Safe-Air Honeywell ML & MS Motors with Belimo FSNF120 Series March 2018
4

Cross Reference
For greater detail see www.belimo.us/firesmoke RETROFIT or download from
https://www.belimo.us/mam/americas/technical_documents/pdf-
web/fire_and_smoke_doc/fire_smoke_competitive_replacement_data_reference.pdf
Honeywell
Voltage
Control
Torque
Aux
Replacement
ML4105A1000
120 VAC
On/Off
30
FSLF120 US
*
ML4105B1009
120 VAC
On/Off
30
FSLF120 US
*
ML4105C1008
230 VAC
On/Off
30
FSLF230 US
*
ML4105D1007
230 VAC
On/Off
30
FSLF230 US
*
ML4115A1009
120 VAC
On/Off
30
FSLF120 US
*
ML4115A1017
120 VAC
On/Off
30
FSLF120 US
*
ML4115B1008
120 VAC
On/Off
30
FSLF120 US
*
ML4115B1016
120 VAC
On/Off
30
FSLF120 US
*
ML4115C1007
230 VAC
On/Off
30
FSLF230 US
*
ML4115C1015
230 VAC
On/Off
30
FSLF230 US
*
ML4115D1006
230 VAC
On/Off
30
FSLF230 US
*
ML4115D1014
230 VAC
On/Off
30
FSLF230 US
*
ML4115H1002
120 VAC
On/Off
30
FSLF120 US
*
ML4115J1019
120 VAC
On/Off
30
FSLF120 US
*
ML4202F1000
120 VAC
On/Off
20
FSLF120 US
*
ML4202F1000
120VAC
On/Off
20
FSLF120 US
*
ML4302F1008
120 VAC
On/Off
20
FSLF120 US
*
ML8105A1006
24 VAC
On/Off
30
FSLF24 US
*
ML8105B1005
24 VAC
On/Off
30
FSLF24 US
*
ML8115A1005
24 VAC
On/Off
30
FSLF24 US
*
ML8115A1013
24 VAC
On/Off
30
FSLF24 US
*
ML8115B1004
24 VAC
On/Off
30
FSLF24 US
*
ML8115B1012
24 VAC
On/Off
30
FSLF24 US
*
ML8115H
24 VAC
On/Off
30
FSLF24 US
*
ML8115J
24 VAC
On/Off
30
FSLF24 US
*
ML8202
24 VAC
On/Off
20
FSLF24 US
*
ML8302
24 VAC
On/Off
20
FSLF24 US
*
MS4104F1010
120 VAC
On/Off
30
FSLF120 US
*
MS4104F1210
120 VAC
On/Off
30
2
FSLF120-S US
*
MS4109F1010
120 VAC
On/Off
80
FSNF120 US
MS4109F1210
120 VAC
On/Off
80
2
FSNF120-S
MS4120F1006
120 VAC
On/Off
175
FSAFA120
MS4120F1204
120 VAC
On/Off
175
2
FSAF120A-S
MS4209F1007
120 VAC
On/Off
80
FSNF120 US
Safe-Air Honeywell ML & MS Motors with Belimo FSNF120 Series March 2018
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MS4309F1005
120 VAC
On/Off
80
FSNF120 US
MS4604F1010
230 VAC
On/Off
30
FSLF230
*
MS4604F1210
230 VAC
On/Off
30
2
FSLF230-S
*
MS4609F1010
230 VAC
On/Off
80
FSNF230
MS4609F1210
230 VAC
On/Off
80
2
FSNF230-S
MS4620F1005
230 VAC
On/Off
175
FSAF230A
MS4620F1203
230 VAC
On/Off
175
2
FSAF230A-S
MS4709F1014
230 VAC
On/Off
80
FSNF230 US
MS4809F1012
230 VAC
On/Off
80
FSNF230 US
MS7520A2015
24 VAC
2-10V, 4-20mA
175
FSAFB24-SR US
MS8104F1010
24 VAC
On/Off
30
FSLF24
*
MS8104F1210
24 VAC
On/Off
30
FSLF24
*
MS8109F1010
24 VAC
On/Off
80
FSNF24
MS8109F1210
24 VAC
On/Off
80
2
FSNF24-S
MS8120F1002
24 VAC
On/Off
175
FSAF24A
MS8120F1200
24 VAC
On/Off
175
2
FSAF24A-S
MS8209F1003
24 VAC
On/Off
80
FSNF24 US
MS8309F1001
24 VAC
On/Off
80
FSNF24 US
S20230-F
230 VAC
On/Off
175
FSAF230A
S20230-F-SW2
230 VAC
On/Off
175
2
FSAF230A-S
S2024-F
24 VAC
On/Off
175
FSAF24A
S2024-F-SW2
24 VAC
On/Off
175
2
FSAF24A-S
SPH2 Aux Switch
**
32003532-002 Aux Switch
**
* Use FSNF series if damper is > 4 sq.ft.
** Use -S model of proper voltage.
Nominal sq.ft. per UL555S testing.
Temp
Actuator
<4
350°F
FSLF
36” w x 24” h also.
<12 350°F FSNF Multisections also.
<16 250°F FSNF Multisections also.
<18 350°F FSAF*A Multisections also.
The FSTF series actuators were introduced in 2013. They are 18 in-lb and designed for
under 1.5 sq.ft. of fire and smoke damper. Use on larger dampers only when replacing an
existing FSTF on a fire and smoke damper.
The FSLF is recommended for small dampers.
Belimo actuators pass
UL555S at the same damper
sizes as the Honeywell.
NOTE. Although an actuator may operate a larger sized damper
use the UL listed sizing. Call for assistance.
Safe-Air Honeywell ML & MS Motors with Belimo FSNF120 Series March 2018
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Siemens
Make & Model
Power
Belimo Replacement
GGD121
24
FSAF24
FSNF24
GGD221
120
FSAF120
FSNF120
GGD321
230
FSAF230
FSNF230
GND12x.1x
24V
FSLF24
GND22x.1x
120V
FSLF120
GND32x.1x
230V
FSLF230
Electronic Fuse Link (24 Vac)
ASK79.165 165°F (74°C)
BAE165 US
ASK79.212 212°F (100°F)
None. Call if needed.
ASK79.250 250°F (121°C)
None. Call if needed.
ASK79.350 350°F (177°C)
None. Call if needed.
Optional
Two Auxiliary Switches Fixed 5° and 85°
FSTF
Best solution for small
dampers where the
HW bracket has been
hung out into the air
is to use an FSTF
actuator
Safe-Air Honeywell ML & MS Motors with Belimo FSNF120 Series March 2018
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MultiProducts
Prefco 5800 EMB
In all cases disconnect external motor spring without
compromising fusible link and internal spring ability to close
the blades. These are quite old and changes may have been
made over the years. Investigate operation. Confirm voltage.
Check fusible links or McCabe © Link. Verify damper
functions after replacement by testing damper open and
spring closed.
FSTF if less than
1.5 sq.ft.
FSLF from 1.5 to 4
sq.ft.
FSNF up to 10
sq.ft.
Use -S models if
auxiliary switches
are required.
Use of FSLF is recommended for dampers less than 4 sq.ft.
For linkage applications all FSTF & FSNF parts can be used.
5800EMB2XPO
FSLF120
5800EMB2XPC
FSLF120
5800EMB1
FSLF120
5800EMB1 - Outside the duct, top mount, power open
5800EMB7
FSLF120
5800EMB7 - Inside the duct, bottom mount, power closed
5800EMB10
FSLF120
5800EMB10 - Outside the duct, bottom mount, power closed
5800EMB5
FSLF120
5800EMB5 - Inside the duct, top mount, power open
5800EMB8
FSLF24
5800EMB9
FSLF120
While direct coupling is preferable, some applications require linkages. See Linkages below for an
example of a FSTF linkaged to a Prefco internally.
Model
Voltage
Notes
2430
120VAC
2553A
120VAC
1
2585
120VAC
2
2659
120VAC
3
2724
120VAC
4
2781
24/120 VAC
5
2814A-SQ
120VAC
6
2814-SQ
120VAC
7
2920
120VAC
8
2985
120VAC
9
2986
120VAC
10
3158
120VAC
11
3159
120VAC
12
5983
120VAC
13
6247
120VAC
14
MZRHM
120VAC
15
TB2000/1
120VAC
16
All 120V, FSLF120
Nailor
5953
5949
M12, MZRHM
6247
5186
Safe-Air Honeywell ML & MS Motors with Belimo FSNF120 Series March 2018
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1 Square shaft inserted into damper sleeve with special crankarm. If a smoke damper,
replacement may be possible and requires a new shaft and other linkage parts. If a
combination fire and smoke damper, Belimo may not be capable of being used. See Air
Balance with MP2553.
2 Typically these were linkaged using a crank arm on the square motor shaft and the spring
was on the round shaft. Remove all linkage parts and direct couple to damper shaft.
3 Safe-Air / Imperial. Typically linkaged. There was an internal spring and fusible link for the
fire function.
4 Except in rare occasions where space constraints exist, simply remove all linkage parts and
direct couple on damper shaft. Use old motor as a mounting platform for anti-rotation strap
5 Usually on a Negator Spring damper. For pneumatic, the FSLF120 will usually work. For
electric, the Ruskin kit FSLF120/MP must be ordered from a Ruskin rep.
6 10 in-lb. "A" model = CW rotation; plain = CCW. Check voltage. FSLF replaces both in most
cases. Use FSTF when linkages necessary
7 10 in-lb. "A" model = CW rotation; plain = CCW. Check voltage. FSLF replaces both in most
cases. Use FSTF when linkages necessary.
8 Inside clamp mounting or a shaft extension required.
9 See Greenheck Installation Instructions. Typically these were linkaged using a crank arm on
the square shaft and the spring was on the round shaft. Remove all linkage parts and direct
couple to damper shaft.
10 See Greenheck Installation Instructions. Typically these were linkaged using a crank arm on
the square shaft and the spring was on the round shaft. Remove all linkage parts and direct
couple to damper shaft
11 Some were direct coupled to the damper shaft with an external spring. Some were linkaged
using a crank arm on the square motor shaft and the spring was on the round shaft.
Remove all linkage parts and direct couple.
12 Some were direct coupled to the damper shaft with an external spring. Some were linkaged
using a crank arm on the square motor shaft and the spring was on the round shaft.
Remove all linkage parts and direct couple.
13 https://www.belimo.us/mam/americas/technical_documents/pdf-
web/fire_and_smoke_doc/nailor_multiproducts_to_belimo_fs_instructions.pdf
14 Nailor. Remove linkage parts and mount to damper shaft. FSLF for dampers < 4 sq.ft. and
FSNF for dameprs > 4 sq.ft.
15 Nailor. Remove linkage parts and mount to damper shaft. FSLF for dampers < 4 sq.ft. and
FSNF for dameprs > 4 sq.ft.
16 Typically these were linkaged using a crank arm on the square motor shaft and the spring
was on the round shaft. Remove spring and all linkage parts and direct couple to damper
shaft.
Safe-Air Honeywell ML & MS Motors with Belimo FSNF120 Series March 2018
9

SAFE-AIR damper with Honeywell Motor
Belimo Mechanical
FSLF
FSNF
strap
½” threaded
connector
Chase nipple 2x4 box and
blank cover
Existing flex connector and
incoming power wires
165F
Thermodisc
rotationAnti-
External view.
Belimo FSNF mounts on
shaft with the clamp on the
side of the actuator
necessary to spring closed.
Internal view.
The fusible link releases a
spring that closes the
damper. This should not
be modified.
Where a J-box is
needed for wiring,
a chase nipple and
2x4 or 4x4 box can
be attached to the
actuator.
Safe-Air Honeywell ML & MS Motors with Belimo FSNF120 Series March 2018
10

Direct Coupling
FSNF mounted on the
damper shaft. Two
screws hold the anti-
rotation strap. Two nuts
secure cold-weld clamp
onto shaft.
FSAF mounts the same.
Side view
Mounting
The Belimo Anti-rotation strap
may be attached to the HW
bracket or to the sleeve. Duct
must be able to fall away; do not
attach so that this is prevented. A
4” x 4” or larger electrical plate will
serve as an anti-rotation mounting
plate if old actuator is hung over
free air.
See Belimo Mounting Methods
Guide
Anti-rotation strap
can be attached to
bracket, 4 x 4
plate, or sheet
metal bracket.
WARNING!
USE CAUTION!
Spring is under high torsion and may cause serious injury! If any external
springs are present, exercise caution – wear face and hand protection.
Safe-Air Honeywell ML & MS Motors with Belimo FSNF120 Series March 2018
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Best to mount the Belimo anti-rotation strap perpendicular to the
actuator to allow for movement on non-concentric shaft.
AF-P anti-rotation strap
Score and break off
excess.
Bearing
Old bracket
For small dampers
where the actuator
must hang out in
the air.
1) Reuse old bracket
2) Support with a 4" x 4"
cover plate and use bolts
or anti-rotation strap
provided with actuator.
Bolts and
lock nuts.
Anti-rotation strap
11695 LF- P
The heavier duty 11414 AF-P
may be ordered when needed.
Bend strap at perforations to
adjust for necessary height.
WARNING!
Read Data Sheet provided in box with each actuator for specific wiring details.
WARNING!
Actuator anti-rotation strap may not be screwed to the duct. It must attach to
either the sleeve or to the mounting bracket. The duct must be able to fall away
from the damper in case of ceiling collapse in a fire.
Safe-Air Honeywell ML & MS Motors with Belimo FSNF120 Series March 2018
12

ote that actuator floats freely. Clamp cold welds when teeth dig into the damper shaft and the anti-
rotation strap stud allows the actuator to move if shaft is not perfectly concentric. Rigid mounting by
jamming the stud into the U-slot of actuator is NOT usually best.
Distance at top must be
the same as at bottom
Actuator should be
parallel to the plane of
the damper frame and
sleeve.
Actuator must be
perpendicular to the
damper shaft.
Allow any non-concentric shaft
motion to be taken up by
mounting stud in middle of U-slot
Figure 1
Figure 2
Figure 3
As long as it is mechanically
solid, the anti-rotation strap
may be bent to fit height.
-
Note how the pin of the anti-
rotation strap is mounted in middle
of actuator U-slot.
This is acceptable as long
as mechanically solid.
Safe-Air Honeywell ML & MS Motors with Belimo FSNF120 Series March 2018
13

Linkage mounting
Possible alternate arrangements for damper clip. (FSNF, FSAF actuators shown.)
WARNING!
Read Data Sheet provided in box with each
actuator for specific wiring details.
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
Safe-Air Honeywell ML & MS Motors with Belimo FSNF120 Series March 2018
14

Miscellaneous parts
Should they be needed, Belimo carries a range of parts. Ball joints and 5/16” rods
are available from most distributors.
KH8
KG8 3/8”
KG6, KG10A ¼”
SH8 (not shown – see picture page 9). Push-rod for KG6 & KG8 ball joints. 5/16” 36” long
Use SH10 3/8” rods for GMB and dual FSAF or FSNF linkages. 5/16” can bend under heavy loads.
ZG-DC1 Damper blade clip and ball joints for blades typically 3.5” in
width. Typically the actuator or rod to shaft is in front
of blade.
ZG-DC2 Damper blade clip and ball joints – typically used for 6” wide
blade control dampers. Typically the ctuator or rod to shaft is
above or below the damper.
KH-6. Zinc plated steel. For shafts 3/8” to 11/16”
Uses KG6 ball joint. Slot width 1/4”
KH-8. Zinc plated steel. For shafts 3/8” to 11/16”
Uses KG8 (90 degree) or KG10A ball joint. Slot
width 21/64”
Where the crank arm on the jackshaft is broken or
not of the type needed, the KH12 fits over the
shaft without removing it. Zinc plated steel. Slot is
for the KG10A ball joint. V-bolt fits ¾” to 1” (20 to
25mm) shafts.
Safe-Air Honeywell ML & MS Motors with Belimo FSNF120 Series March 2018
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Thermal sensor replacements – BAE165 US
Original equipment is recommended although not strictly required by code. UL does not
regulate replacement or repair. See NFPA 80 or NFPA 105.
Auxiliary Switches
Where the original switches for signaling position to a Fire Fighters’ Smoke Control Panel
or to local indicator lights must be replaced or are inoperative, the Belimo –S model
actuators may be used.
Belimo S2A-F
-S models
H C
165°F Contact closed if
damper closed Contact closes if
damper open
S2S1
Internal switches
C
H
HotClosed Open
Manual
reset
Some models are SPDT.
Check data sheets.
Switch
cable
Belimo BAE165 US
Where existing
sensor is defective
or one must be
added, the 165°F
primary sensor may
be used.
Belimo S2A-F
FSLF (mid 2014ff), FSNF,
FSAF actuators can use the
add on switch package.
-S actuators have
built in switches.
See data sheets as
configuration and
wire colors vary
among actuators.
Safe-Air Honeywell ML & MS Motors with Belimo FSNF120 Series March 2018
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Wiring
This is the most common wiring method used.
HOT
120 or
24 VAC
TYPICAL FIRE - SMOKE COMBINATION DAMPER WIRING
165°F
Smoke Detector or Relay from area
smoke detection system
BELIMO
FSxx
ACTUATOR
TYPICAL SENSOR
TEMPERATURES
N or
COM
Electric thermal disc
To alarm
system
Regardless of the wiring routes used, this drawing shows the wiring necessary for a
UL555S damper and actuator. Use it as a basis for any of the other wiring schematics.
Note that the alarm connections are not touched when replacing an actuator. This is a
major concern for Fire Marshals.
In some rare cases fusible links
may have been used. In those
cases the wiring for the actuator
will be similar to this.
HOT
120 or
24 VAC
Smoke Detector or Relay from area
smoke detection system
BELIMO
FSxx
ACTUATOR
N or
COM
Fusible link DAMPER ACTUATOR WIRING
WARNING!
Note that where any fire alarm wiring is touched, the
fire department must be informed.
Safe-Air Honeywell ML & MS Motors with Belimo FSNF120 Series March 2018
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•
To alarm
system
N or
COM
BELIMO
FSLF or FSNF
ACTUATOR
TYPICAL SENSOR
TEMPERATURES
165°F 350
HOA
FIRE FIGHTERS
CONTROL PANEL
HOT
120 or
24 VAC
A
O
H
Smoke detector
or relay contacts
TYPICAL REOPENABLE DAMPER with FSCS
°F
-S models have
two SPST (FSLF)
or two SPDT
(FSNF) auxiliary
switches.
See FSLF or FSNF data
sheet for wiring numbers
and/or color coding..
FSNF FSLF
Com NO Com NC
Damper Open or Closed Damper Open or Closed
C NO NC C NO NC
Belimo Auxiliary Switches for position indication to FSCS
The auxiliary switches are used to provide status indication to the fire fighters’
smoke control panel. Typically there are two or three status lights or leds. This
wiring is the responsibility of the fire alarm company. If it is touched, they must
retest to verify proper operation. These switches are not alarm, but rather indicating.
WARNING!
•Damper must be free to move from open to closed without undue stress.
•Damper and duct must be clean and free of all debris.
•Test damper and controls per Fire Marshal’s checklist below.
•Fire alarm company may need to be present to verify proper status
indication at FSCS panel.
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Building Official / Fire Marshal Notification Form
Retain this portion of checklist at premises for Fire Marshal inspection. See local AHJ or Fire Marshal for
other information and requirements regarding conformance with NFPA 80 & NFPA 105.
Test Checklist (Fusible Link and Smoke dampers do not have sensors. Only steps a & b apply.)
1. Single Sensor Combination Damper
a. Open smoke detector or relay wire or contact to cut power. Damper springs closed.
b. Reconnect power. Damper drives open.
c. Open thermal sensor using heat gun. Damper springs closed.
d. Press thermal sensor manual reset. Damper drives open.
Repeat 3 times to ensure operation. This imitates UL555S test.
2. Reopenable Two Sensor Fire-Smoke Combination Damper
(Since this system involves the Firefighters’ Smoke Control System, inform fire department.)
With FSCS switch in Auto position:
a. Disconnect power from smoke detector or relay contacts. Actuator springs damper closed.
b. Reconnect power. Actuator drives damper open.
c. Trip thermal sensor. Actuator springs damper fully closed.
d. Press manual reset. Actuator drives damper open.
Test FSCS switch functions:
a. Move FSCS switch to Off position. Actuator springs damper fully closed.
b. Move FSCS switch to Hand position. Actuator drives damper open.
c. Trip secondary (higher temperature) thermal sensor. Actuator springs damper fully closed.
d. Press manual reset of secondary sensor. Actuator drives damper open.
Move FSCS switch back to Auto position:
a. Actuator springs damper closed if Primary sensor is still open.
b. Actuator stays open if Primary sensor has re-closed.
When completed, ensure sensors are reset and smoke detector is in normal state and FSCS switch is
in 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…….………………………………………………………………………………………………………
……………..…………………………………………………………………………………………………….
……………...……………………………………………………………………………………………………
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