Belimo FS Series Use and care manual

Replacement of Air Balance Honeywell ML & MS with
Belimo FSxx Series Actuators
Contents
UL®..............................................................................................................................................2
Code and Standard Issues...........................................................................................................2
NFPA 80 (Fire) & NFPA 105 (Smoke ).........................................................................................3
Local Code Approval....................................................................................................................4
Cross Reference..........................................................................................................................5
Fire & Smoke Damper Technical Details......................................................................................8
Replacement Instructions.............................................................................................................9
Mounting Methods .....................................................................................................................10
Linkage mounting.......................................................................................................................14
Miscellaneous parts...................................................................................................................15
Thermal sensor replacements – BAE165 US.............................................................................15
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
WARNING!
Before replacing actuator, damper must be inspected and determined to be
fully functional. See NFPA 80 &/or NFPA 105 for recommended check list.
WARNING!
Installer must be trained and experienced with repair
of fire and smoke dampers and actuators.
Air Balance Honeywell ML&MS Types to Belimo FSxx March 2018 1

UL®
Code and Standard Issues
In general, the administrative section of codes states 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. Required testing
is shown in the chart below.
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
actuators 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.”
Air Balance Honeywell ML&MS Types to Belimo FSxx 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 on site and made available to AHJ.
NFPA requires damper inspection and repair of dampers.
See www.nfpa.org for Standards. Details not covered here.
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.
Air Balance Honeywell ML&MS Types to Belimo FSxx 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 Fire Marshal Notification Form on last page.
(Mnemonic device: TTT-VAT)
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!
Disconnect and lock out power before starting to disconnect old motor.
NEGATOR SPRING DAMPERS
Where old negator spring damper motors were replaced by a Honeywell, the spring
should have been removed and a new thermal sensor installed. If this has not been
done, call Belimo for special instructions.
Some instructions are available at:
https://www.belimo.us/solutions/actuators/product-documentation/damper-actuators-fire-and-
smoke#tab2
Air Balance Honeywell ML&MS Types to Belimo FSxx March 2018 4

Cross Reference
See www.belimo.us/firesmoke or https://www.belimo.us/mam/americas/technical_documents/pdf-
web/fire_and_smoke_doc/fire_smoke_competitive_replacement_data_reference.pdf for greater detail.
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
MS4309F1005
120 VAC
On/Off
80
FSNF120 US
Air Balance Honeywell ML&MS Types to Belimo FSxx March 2018 5

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.
Air Balance Honeywell ML&MS Types to Belimo FSxx March 2018 6

Siebe/Barber
Coleman
Power
Torque
Aux
Switches
Belimo
Notes
MA220
120 VAC
30
FSLF120 US
1, 2, 4
MA221
240 VAC
30
FSLF230 US
1, 2, 4
MA223
24 VAC
30
FSLF24 US
1, 2, 4
MA230
120 VAC
50
FSNF120 US
1, 2, 3
MA231
240 VAC
50
FSNF230 US
1, 2, 3
MA233
24 VAC
50
FSNF24 US
1, 2, 3
MA240
120 VAC
50
5,6
MA250
120 VAC
50
FSNF120 US
1, 2, 3, 4
MA251
230 VAC
50
FSNF230 US
1, 2, 3, 4
MA253
24 VAC
50
FSNF24 US
1, 2, 3, 4
MA-318
24 VAC
60
FSNF24 US
1, 3
MA-318-500
24 VAC
60
1
FSNF24 -S
US
1, 3
MA-418
120 VAC
60
FSNF120 US
1, 3
MA-418-500
120 VAC
60
1
FSNF120-S
US
1, 3
1
Direct couple the Belimo where shaft is available.
Some were direct coupled.
2
FSTF <1.5 sq.ft. FSLF <4
sq.ft.
3
FSNF <12 sq.ft. FSAF*A <18 sq.ft.
4
For Pottorff with shaft spring see:
https://www.belimo.us/mam/americas/technical_documents/pdf-
web/fire_and_smoke_doc/pottorff-ma2xx_to_belimo.pdf
5
Motor was not 90 degree and pulley and cable were usually
used. Some geometric changes are necessary to simplify.
6
Provide photos. Motor, linkage, blades, fusible link, McCabe ©
Link, Typically direct couple to damper shaft if available.
Otherwise, investigation necessary.
Air Balance Honeywell ML&MS Types to Belimo FSxx March 2018 7

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°
Fire & Smoke Damper Technical Details
A number of different brackets have been used. All allow mounting of Belimo.
WARNING!
Read Data Sheet provided in box with each actuator for specific wiring details.
Small bracket
Large bracket
Air Balance Honeywell ML&MS Types to Belimo FSxx March 2018 8

Belimo Wiring
FSLF
FSNF
165F
Thermodisc
Com Hot
N L
Replacement Instructions
1. Disconnect power and wires from motor in wiring compartment.
2. Disconnect flex connection from actuator to mounting base.
3. Loosen set screws on shaft and 4 screws holding motor to base. Remove motor.
4. Several anti-rotation mounting scenarios are possible. See Mounting Methods below.
5. Mount Belimo FSLF or FSNF over shaft.
6. Connect anti-rotation strap.
7. Close damper tightly, tighten nuts on clamp.
8. Pull out old wires and pull Belimo wires thru flex. Cut off excess. Wire nut Belimo wires to
existing sensor wires.
9. Connect green ground on 120V models. Connect hot and neutral (or common if 24VAC).
See Wiring Methods below.
Conformance test required. See Fire Marshal form on last page.
165°F (typical) sensor
Sheet metal holder bracket and
mounting plate.
This compartment does not have to be
opened except to reset sensor during
acceptance testing. The bracket does
not have to be removed from damper.
Shown here for instruction.
Four bolts hold actuator to
the mounting plate.
For short shaft mounting, the
ZG-LMSA-1/2-5 can be used. Alternately,
the clamp can be installed between the
actuator and sheet metal.
Air Balance Honeywell ML&MS Types to Belimo FSxx March 2018 9

Mounting Methods
Actuators are mounted on the sleeve of the damper in
some cases with a remote sensor and sometimes
within the sheet metal bracket shown below.
Belimo FSLF anti-rotation strap (yellow arrows). Shaft
adaptors and other mounting plates are available.
AF-P anti-
rotation strap.
Score and
break off
excess.
Old
bracket
For small dampers where the
actuator must hang out in the air.
Alternatively,
reuse old
bracket
Bolts and
lock nuts.
In all cases, the stud of the anti-rotation strap should fit in the middle of the slot at the bottom of the
Belimo. This allows the actuator to move as necessary to compensate for any non-concentric
rotation of the damper shaft.
Typical External Mount
Note: short shaft.
Short Shaft Mounting
The Belimo clamp is very stable
when mounted between the actuator and
the supporting sheet metal.
After mounting, tighten the clamp
nuts with a 10mm, long-nosed, deep-well,
¼” drive socket.
Air Balance Honeywell ML&MS Types to Belimo FSxx March 2018 10

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.
Air Balance Honeywell ML&MS Types to Belimo FSxx March 2018 11

FSTF
Best solution for small
dampers where the
HW bracket has been
hung out into the air
is to use an FSTF
actuator
Plate Detail
Wiring and
Thermal Sensor
Anti-rotation
strap. Cut off
excess.
Short plate
with extension
for mounting
Belimo anti-
rotation plate
Screw into
existing plate.
Use
11414 AF-P
Plate Detail
Wiring and
Thermal
Sensor
4" x 4"
electrical
cover plate
New screws
attaching 4 x 4
plate to AB
plate
Short plate
with extension
for mounting
Belimo anti-
rotation plate
Air Balance Honeywell ML&MS Types to Belimo FSxx March 2018 12

If replacing a motor used on a damper with fusible link and shaft spring, investigate
operation and determine that external spring and link are operable. Refer to damper
manufacturer’s instructions for the specific damper in question.
Internal Mounted
The Belimo actuator is located
in the same place when
internally mounted. The
jackshaft goes through the
Belimo and the anti-rotation
strap holds the other end.
If needed, a perforated strap
or U shaped sheet metal
bracket can be put around the
actuator for mechanical
support.
The jackshaft is disassembled
to remove old motor and
mount the Belimo actuator.
Wiring and testing internally
mounted actuators is identical to
that for the externally mounted
actuators.
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.
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.
Air Balance Honeywell ML&MS Types to Belimo FSxx March 2018 13

Linkage mounting
FSLF has no linkage capability
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/a
mericas/technical_documents/data_
sheets/man-air-
acc/Mechanical_Accessories.pdf
Mounting Methods Guide:
https://www.belimo.us/mam/americas/t
echnical_documents/pdf-
web/guides/mounting_methods.pdf
Air Balance Honeywell ML&MS Types to Belimo FSxx 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
ZG-DC2
Thermal sensor replacements – BAE165 US
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.
Belimo BAE165 US
Where existing sensor is defective or one must be added, the
165°F primary sensor may be used.
Original equipment is recommended although not strictly
required by code. UL does not regulate replacement or repair.
See NFPA 80 or NFPA 105.
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.
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.
Air Balance Honeywell ML&MS Types to Belimo FSxx March 2018 15

Auxiliary Switches
-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
Damper blade switch assembly Externally mounted 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 or a S2A-F may be installed.
.
Belimo S2A-F
FSLF (mid 2014ff), FSNF, and
FSAF actuators can use the
add on switch package.
Air Balance Honeywell ML&MS Types to Belimo FSxx March 2018 16

Wiring
There are three wiring schemes that describe all applications. While the geometry of the wire runs
may vary, the connections are straightforward.
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.
Honeywell with actuator wiring compartment used for junctions.
Com Hot
Green
Ground
Internal to
motor
Honeywell Wiring
165F
Thermodisc
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-
If necessary add a chase nipple and junction box as shown above right for wiring connections.
Air Balance Honeywell ML&MS Types to Belimo FSxx March 2018 17

The wiring below is commonly connected to alarm or smoke control electronic modules in modern
systems. The functional sequence is the same.
To alarm
system
N or
COM
BELIMO
FSLF or FSNF
ACTUATOR
TYPICAL SENSOR
TEMPERATURES
165°F 350°F
HOA
FIRE FIGHTERS
CONTROL PANEL
HOT
120 or
24 VAC
A
O
H
FSAF actuators are 250°F only..
Smoke detector
or relay contacts
TYPICAL REOPENABLE DAMPER with FSCS
Investigate cause of Honeywell failure. For example, was old external spring removed correctly?
In rare cases the
Honeywell motor
was installed as a
retrofit on dampers
with fusible links.
There is no electric
sensor in the
damper in that case
as there is typically
a shaft spring
performing the fire
function. Wiring is
shown to right.
HOT
120or
24VAC
SMOKE DAMPER ACTUATOR WIRING
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.
Air Balance Honeywell ML&MS Types to Belimo FSxx March 2018 18

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 (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…….………………………………………………………………………………………………………
……………..…………………………………………………………………………………………………….
……………...……………………………………………………………………………………………………
Air Balance Honeywell ML&MS Types to Belimo FSxx March 2018 19