Honeywell Fire and Smoke Damper Actuator Field Replacement Guide
Fire and Smoke Damper Actuator
Field Replacement Guide
REPLACEMENT GUIDE
APPLICATION
Safety should never be left to chance. Honeywell fire and smoke actuators are designed to meet both UL-555 and UL555S 350°F safety requirements for fire and smoke applications, if applicable. Fast-acting actuators close dampers in 15 seconds, and the integral spring return ensures the consistent, proper level of torque. For the highest level of occupant safety, you can count on Honeywell.
Fire and Smoke actuators and assemblies must function properly during a fire or life-safety emergency. Honeywell Fire and Smoke Actuators provide fast action when timeliness is key in preventing the spread of fire and smoke. Proper installation and periodic performance testing are required to ensure fire and smoke damper assemblies will fully function should an emergency occur.
The following guidelines are crucial to keep fire and smoke damper assemblies operating properly, and to stay in adherence to standards and codes.
FIRE CODE REFERENCES AND INFORMATION
Honeywell Fire and Smoke Actuators are designed to meet both UL555 and UL555S safety requirements for combined fire and smoke applications, if applicable.
The following maintenance guidelines are a summary of the National Fire Protection Association (NFPA) Codes as well as Air Movement and Control Association (AMCA) and Honeywell manuals. We recommend that you become familiar with NFPA 80, 90A, 92A & B, and 105 and AMCA publication 503. Be aware that other codes, such, International Building Code (IBC), regional, state and local codes, may also apply to your area.
REPLACEMENT GUIDELINES
Actuator Specifications
UL555 and UL555S require fire and smoke actuators to be tested to 20,000 close and reopen cycles and close within 75 seconds. UL555 also requires them to be rated to either 250°F or 350°F. If UL does not apply to your region, please omit.
Honeywell fire and smoke actuators are rated to 30,000 cycles, operate within 15 seconds, and are rated to 350°F.
Applications
Combined Fire and smoke dampers are used to maintain fire barrier ratings when walls and floors are penetrated by ductwork.
Smoke dampers are used to prevent the passage of smoke through the HVAC system or from one side of a fire-rated separation to the other. They may be dedicated to this function or also function as HVAC dampers.
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FIRE AND SMOKE DAMPER ACTUATOR FIELD REPLACEMENT GUIDE
Damper Manufacturer’s Guidelines
When replacing actuators, it is important to follow the guidelines that are provided by the damper manufacturer for the damper assembly. When replacing a fire and smoke actuator the replacement should be either like-for-like with the original, factory-mounted actuator, or a technically superior product where the total assembly has passed UL testing with the damper manufacturer.
Please refer to the damper manufacturer’s guidelines for details.
MAINTENANCE
INFORMATION
Fire and Smoke damper assemblies must undergo periodic performance testing to be properly maintained and to ensure they are functioning and will function in a fire or life-safety emergency.
The NFPA codes require combined fire and smoke dampers be tested and inspected at the time the system is commissioned, after it has been balanced, and one year after installation. Then they need to be tested and inspected every 4 years, except in hospitals, where they need to be tested and inspected every 6 years. See "Option 1” and “Option 2” in this section for detailed test instructions.
AMCA suggests that smoke dampers be tested at least semi-annually. Smoke dampers should be operated, and the correct outputs should be observed, to verify operation. These tests need to also be conducted under standby power, if used.
Honeywell Fire and Smoke Actuators are found in combination fire and smoke damper assemblies that use a bi-metallic disc type thermostat to interrupt electrical power to the actuator at a specified temperature. Once the specified temperature is reached, power will be interrupted and the spring return of the actuator will close the damper. When these actuators are used in smoke damper applications, they are usually controlled by smoke detectors or fire alarms.
Periodic inspection includes:
1.Verify that there is full unobstructed access to the damper
2.Test the damper with normal HVAC airflow and verify that it opens following either Option 1 or Option 2. There should be no interference due to rust, damaged frame or blades, or other moving parts.
Option 1: Dampers with Position Indication Wired to indication Lights, or Control Panels:
Switches can be wired to local or remote control panels or building automation systems (BAS) to indicate that the damper is in the fully-open position, fully-closed position, or neither.
a.Use the signal from the damper’s position indication device to confirm that the damper is in the fully-open position.
b.Remove electrical power or air pressure from the actuator to allow the actuator’s spring return feature to close the damper.
c.Use the signal from the damper’s position indication device to confirm that the damper reaches its fully-closed position.
d.Re-apply electrical power to re-open the damper.
e.Use the signal from the damper’s position indication device to confirm the damper reaches its fully-open position.
Option 2: Dampers without position indication:
a.Visually confirm that the damper is fully-open position.
b.Ensure that all obstructions, including hands, are out of the path of the damper blades.
c.Remove electrical power or air pressure from the actuator to allow the actuator’s spring return feature to close the damper.
d.Visually confirm that the damper closes completely.
e.Re-apply electrical power to re-open the damper.
f.Visually confirm that the damper is in the fully open position.
3.If the damper is not operable, it must be repaired as soon as possible. If the actuator has failed, replace it with a UL approved actuator if required. See Table 1. See Figs. 2-3 for mounting and installation information and Figs. 4-9 for wiring. After these repairs, the damper should be tested again.
4.If there is a latch, verify that it is operable.
5.Perform any other damper manufacture recommended maintenance such as lubrication.
6.Following the test and any repairs, document the location of the damper, the date, the inspector, and deficiencies or repairs. Keep the record for the life of the damper, and have it available as you may need to show it to an inspector.
Fig. 1. Typical Fire and Smoke Damper Assembly.
Source: AMCA International: Guide for Commissioning and Periodic Performance Testing of Fire, Smoke, and other Life Safety Related Dampers, 2012.
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FIRE AND SMOKE DAMPER ACTUATOR FIELD REPLACEMENT GUIDE
PRODUCT INFORMATION
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Model |
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SPST |
Legacy |
Belimo |
Siemens |
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Torque |
Number |
Voltage |
Aux Switch |
Honeywell |
Cross |
Cross |
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30 lb-in |
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120 Vac |
0 |
ML4115A1009 |
FSLF120 US |
None |
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(3.4 Nm) |
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ML4115A1017 |
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ML4115B1008 |
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MS4104F1010 |
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ML4115B1016 |
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ML4115H1002 |
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ML4115J1009 |
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ML4202F1000 |
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ML4302F1008 |
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MS4104F1210 |
120 Vac |
2 Internal |
None |
FSLF120-S US |
None |
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MS4604F1010 |
230 Vac |
0 |
ML4115C1007 |
FSLF230 US |
None |
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ML4115C1015 |
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ML4115D1006 |
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ML4115D1014 |
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ML4702F1009 |
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ML4802F1007 |
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MS4604F1210 |
230 Vac |
2 Internal |
None |
FSLF230-S US |
None |
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MS8104F1010 |
24 Vac |
0 |
ML8115A1005 |
FSLF24 US |
None |
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ML8115A1013 |
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ML8115B1004 |
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ML8115B1012 |
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ML8115H1008 |
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ML8115J1005 |
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ML8202F1006 |
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ML8302F1004 |
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MS8104F210 |
24 Vac |
2 Internal |
None |
FSLF24-S US |
None |
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80 lb-in (9 Nm) |
MS4109F1010 |
120 Vac |
0 |
MS4209F1007 |
FSNF120 US |
GND221.1U |
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MS4309F1005 |
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MS4109F1210 |
120 Vac |
2 Internal |
None |
FSNF120-S US |
GND226.1U |
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MS4609F1010 |
230 Vac |
0 |
MS4709F1014 |
FSNF230 US |
GND321.1U |
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MS4809F1012 |
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MS4609F1210 |
230 Vac |
2 Internal |
None |
FSNF230-S US |
GND326.1U |
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MS8109F1010 |
24 Vac |
0 |
MS8209F1003 |
FSNF24 US |
GND121.1U |
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MS8309F1001 |
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MS8109F1210 |
24 Vac |
2 Internal |
None |
FSNF24-S US |
GND126.1U |
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175 lb-in |
MS4120F1006 |
120 Vac |
0 |
None |
FSAF120 US |
GGD221.1U |
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(20 Nm) |
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MS4120F1204 |
120 Vac |
2 Internal |
None |
FSAF120-S US |
None |
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MS4620F1005 |
230 Vac |
0 |
None |
FSAF230 US |
GGD321.1U |
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MS4620F1203 |
230 Vac |
2 Internal |
None |
FSAF230-S US |
None |
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MS8120F1002 |
24 Vac |
0 |
None |
FSAF24 US |
GGD121.1U |
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MS8120F1200 |
24 Vac |
2 Internal |
None |
FSAF24-S US |
None |
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Table 1. Fire and Smoke Cross Reference.
3 |
38-00001—02 |
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