Belimo FS Series User manual

Greenheck MP2985 & MP2986 Motors with Belimo FSxx Series January 2015
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INSTRUCTION SHEET
Replacement of Greenheck MP2985 & MP 2986
Motors with Belimo FSxx Series
Contents
UL®................................................................................................................2
Code and Standard Issues.............................................................................2
NFPA 80 (Fire) & NFPA 105 (Smoke)............................................................3
Local Code Approval......................................................................................4
Cross Reference............................................................................................5
Application.....................................................................................................7
Mounting......................................................................................................12
Linkage mounting ........................................................................................15
Miscellaneous parts.....................................................................................16
Thermal sensor replacements –BAE165 US...............................................16
Building Official / Fire Marshal Notification Form..........................................20
Contacts:
East Coast 800 543-9038 x3119 West Coast 800 987-9042
Aaron Nobel 203 749-3119 Larry Felker 775 355-2461 (250-4160 Cell)
Mike Knipple 203 749-3170 Laure Pomianowski 775 355-2466
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 &/or NFPA 105 for
recommended check list.

Greenheck MP2985 & MP2986 Motors with Belimo FSxx Series January 2015
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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
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.”

Greenheck MP2985 & MP2986 Motors with Belimo FSxx Series January 2015
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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.
NFPA requires damper inspection and repair of dampers.
See www.nfpa.org. for Standards.
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.

Greenheck MP2985 & MP2986 Motors with Belimo FSxx Series January 2015
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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)
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.

Greenheck MP2985 & MP2986 Motors with Belimo FSxx Series January 2015
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Cross Reference
MultiProducts
There is no one to one replacement. Rather, all the old linkage parts, external spring, and
motor are removed and the new actuator is direct coupled to the damper shaft. Double
check that the fusible link and shaft spring are intact. See BAE 165 below if not.
MP2985E 115V 24W .335A Run .36A Stall Belimo FSLF12O
MP2986A 24V 19W 1.5A Run 1.6A Stall Belimo FSLF24
Honeywell
VAC
Torque
Replacement
Notes
in-lb
ML4105A1000
120
50
FSLF120*
Any of these with
ML4105B1009
120
50
FSLF120*
32003532-002 auxiliary
M4105C1008, D1007
230
50
FSLF230*
switch package: add –S
ML4115A1009, B1008
120
30
FSLF120
To Belimo part number.
ML4115C, D, H, J
230
30
FSLF230
ML4105 no longer made.
ML4202
120
20
FSLF120
ML4302
120
20
FSLF120
ML8202, M8302
24
20
FSLF24
ML8105A1006, B1005
24
50
FSLF24*
ML8105 no longer made.
ML8115A1005, B1004
24
30
FSLF24
ML8115H, J
24
30
FSLF24
MS4209F
120
80
FSNF120*
MS4309F
120
80
FSNF120*
MS8209F
24
80
FSNF24*
MS8309F
24
80
FSNF24*
MS4120F1006
120
175
FSAF120*
No aux
MS4120F1204
120
175
FSAF120-S*
2 SPST
MS8120F1002
24
175
FSAF24*
No aux
MS8120F1200
24
175
FSAF24-S*
2 SPST
32003532-002 Aux switches
Use –Smodel Belimo.
Nominal sq.ft. per UL555S
testing.
Sq.ft.
Temp
Actuator
<4
350°F
FSLF
Up to 30” x 30” and 36” x
24”. See NOTE below.
<12
350°F
FSNF
<16
250°F
FSNF
<12
250°F
FSAF
* More important than the torque rating is the
damper manufacturers’ UL555S testing.
Each manufacturer tests Belimo separately
and has different sizes UL555S listed.
NOTE. Although an actuator may pass a
larger sized damper use the UL listed sizing.
See
www.belimo.us/firesmoke “What’s New”
for a cross reference by manufacturer.

Greenheck MP2985 & MP2986 Motors with Belimo FSxx Series January 2015
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Barber Colman-Siebe—Invensys
Model
Power
Torque-Stroke
Belimo
Replacement
MA318
24
60-180 stroke
FSNF24
MA418
120
60-180 stroke
FSNF120
MA220
23VA
120
FSLF120
FSNF120
MA221
23VA
240
FSLF230
FSNF230
MA223
23VA
24
FSLF24
FSNF24
MA230
36VA
120
FSLF120
FSNF120
MA231
36VA
230
FSLF230
FSNF230
MA233
36VA
24
FSLF24
FSNF24
MA240
No direct
replacement.
MA250
Same as
MA220/230
series.
Siemens
For more detail see Belimo Cross Reference at
www.belimo.us/firesmoke "What's New"
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°
For more MultiProducts and ECM see Belimo Cross Reference at www.belimo.us/firesmoke
NOTE: Remove external spring. If single spring was used for both fire and
smoke function, then a modern SPST, NC thermal sensor must be installed.
Call for instructions.
SEE
NOTE
BELOW.

Greenheck MP2985 & MP2986 Motors with Belimo FSxx Series January 2015
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Application
Greenheck used a dual spring approach. The external spring closes the motor.
A hidden internal spring is held back by a fusible link. It is not involved in the smoke
function and should not be changed.
The motors above are connected by linkage as shown in the photographs below. The
Belimo FSLF can be direct coupled if space exists for mounting. A bracket may have to
be fabricated from 16 ga. Sheet metal to hold the anti-rotation strap. The geometry of
the situation determines the mounting method.
Below and right. Black arrow
points to the 1/4” motor shaft
and spring. White arrow
points to the damper shaft
which is hidden.

Greenheck MP2985 & MP2986 Motors with Belimo FSxx Series January 2015
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View of damper frame, blade, and shaft. Detail of spring, arm, and fusible link.
RIGHT!
The Greenheck high temperature
damper closing is accomplished
with a fusible link and a shaft
spring.
Replace the fusible link if
necessary and test the closing
function.
THIS SPRING AND FUSIBLE
LINK MUST REMAIN IN PLACE.
WRONG!
This spring has been
disconnected from the linkage.
It must be repaired or the damper
replaced.
Test when reattached to ensure
the damper closes if fusible link
melts.

Greenheck MP2985 & MP2986 Motors with Belimo FSxx Series January 2015
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Spring. Motor is applied the
same as any linkage application.
Remove spring and actuator.
This shaft is not mounted to
the damper.
1
Crankarm is connected to the damper shaft. The
Belimo may be direct coupled over the shaft. For
short shaft mounting, place clamp of actuator
between actuator and damper. See p9.
If a linkage is needed due to space constraints,
use FSNF with ZG-AF or other linkage kit with
rod. See Mounting Methods Guide and
Mechanical Accessories Booklets at
www.belimo.us.
2
1
2
Close-up view showing external shaft spring and part of the linkage.
Both will be removed so that the Belimo can be mounted on the shaft.

Greenheck MP2985 & MP2986 Motors with Belimo FSxx Series January 2015
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Disassembly of MP mounted motor
Damper shaft / Jackshaft
extends out thru motor.
Damper
shaft
Damper
frame
Bracket
MP
Motor
External
Spring
View from below the damper
and actuator

Greenheck MP2985 & MP2986 Motors with Belimo FSxx Series January 2015
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Remove spring, bracket and MP motor. Do not remove bearing or bracket.
Jackshaft extends beyond the outboard bearing bracket and the Belimo FSLF can be
direct coupled.
A plate will be needed to attach the anti-rotation strap. An alternate plate is
available from Greenheck and is shown below.

Greenheck MP2985 & MP2986 Motors with Belimo FSxx Series January 2015
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Mounting
Short shaft
Note 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.
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.
FSLF mounted on the
damper shaft. Two
sheet metal screws hold
the anti-rotation strap.
Two nuts secure cold-
weld clamp onto shaft.
Clamp
WARNING!
Read Data Sheet provided in box with each actuator for specific wiring details.
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.

Greenheck MP2985 & MP2986 Motors with Belimo FSxx Series January 2015
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Depending on the geometry, any number of mounting arrangements are correct.
The most common are shown here 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. The damper must
continue to protect the wall. See Belimo Mounting Methods Guide for more mounting
drawings at www.belimo.us in the documentation tab.
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
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.
See Belimo Mounting Methods Guide for more at www.belimo.com/Documentation.
Anti-rotation strap can be attached to bracket, 4 x 4 plate, or sheet metal bracket.

Greenheck MP2985 & MP2986 Motors with Belimo FSxx Series January 2015
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FSLF
FSNF
strap
½” threaded
connector
Chase nipple 2x4 box and
blank cover
Existing flex connector and
incoming power wires
165F
Thermodisc
rotationAnti-
Where a J-box is needed
for wiring connections, a
chase nipple and 2 x 4 or 4
x 4 box can be attached to
the actuator.
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.
It is best to mount the
Belimo anti-rotation strap
perpendicular to the
actuator to allow for movement
on non-concentric shaft.

Greenheck MP2985 & MP2986 Motors with Belimo FSxx Series January 2015
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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:
http://www.belimo.us/belimo/media//
Technical_Documents/Accessories/
Mechanical_Accessories.pdf
Mounting Methods Guide:
http://www.belimo.us/media/downloa
ds/Instructions/Application_Guides/M
ounting_Methods.pdf

Greenheck MP2985 & MP2986 Motors with Belimo FSxx Series January 2015
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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.
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.
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.

Greenheck MP2985 & MP2986 Motors with Belimo FSxx Series January 2015
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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.

Greenheck MP2985 & MP2986 Motors with Belimo FSxx Series January 2015
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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
TEMPERATURE
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.
The wiring below is commonly connected to alarm or smoke control electronic modules in
modern systems. The functional sequence is the same.
WARNING!
Disconnect and lock out power before starting to disconnect old motor.

Greenheck MP2985 & MP2986 Motors with Belimo FSxx Series January 2015
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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.

Greenheck MP2985 & MP2986 Motors with Belimo FSxx Series January 2015
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Building Official / Fire Marshal Notification Form
Retain this portion of checklist at premises for inspection. See local AHJ 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. Fusible Link Combination Damper
a. Open smoke detector or relay wire or contact to cut power. Damper springs closed.
b. Reconnect power. Damper drives open.
c. Unhook fusible link. Replace if broken. PROTECH HANDS. Damper springs closed.
d. Reopen damper and rehook fusible link.
e. Repeat steps a. and b. Damper drives open.
2. Reopenable Two Sensor Fire-Smoke Combination Damper
(Since this system involves the Firefighters’ Smoke Control System, inform fire department in all
cases.)
The sequence will be similar to that described below. After the above test perform the tests below.
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…….………………………………………………………………………………………………………
……………..…………………………………………………………………………………………………….
……………...……………………………………………………………………………………………………