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Operation &
Maintenance
Instructions

Operating and Maintenance
Instructions

All Ductgard units are tested before
leaving the factory but should be test
operated prior to commissioning to
ensure correct operation. Quick and
easy testing and reset procedures for
each operational mode are detailed on
their respective data pages in this
brochure. In addition to their initial test
however, being a fire safety product, it
is also recommended that the units are
test operated regularly thereafter . Test
frequency will depend upon the

damper environment but, in the
absence of any other information, a
maximum interval of 6 months is
recommended. In addition an annual
visual inspection is also advisable to
permit cleaning and removal of any
airborne contaminants which may
affect the dampers operation.

Note

For safety the damper blades should
be closed on Modes 5,9, and open on
modes 6,10, before personally
approaching them for

inspection/cleaning.
Since the drive, linkage, motors and
electronic components on the ductgard
units are ‘sealed for life’ there should
be no requirement for periodic
maintenance and spares are not
normally required. Items such as reset
levers and test keys however can be
misplaced over time. In this event
replacements are readily available from
Head Office. 

Trouble-
Shooting

Gilberts
Damper,
Smoke and
Fire Control
Range

All Ductgard units are both inspected and tested before leaving our premises. Manufactured using maintenance free ‘sealed
for life’ components  there is no reason why they should not reach site in full working order and continue to function when
installed providing that our fitting and wiring instructions have been adhered to. In the event of operational difficulties please
contact our Head Office for on-line guidance and advice.
Telephone: (01253) 766911
Ductgard units carry a full 1 year warranty from the date of delivery for all parts and labour.

Smokegard

Door, Wall and Partition
Mounted Smoke and Fire
Dampers

Series 52

Smoke Evacuation Damper

Series 50/51

Fire Smoke Dampers

Firegard

Curtain Fire Dampers

Airgard

Volume Control
Dampers

Series RD

Iris Duct Damper

14

Summary of Contents for DUCTGARD

Page 1: ...and frame side seals Unique patented precision blade linkage mechanism 8 Different modes of operation Connections to suit most proprietary duct work Extensive range of external control facilities DUCTGARD Duct Mounting Smoke and Fire Control Dampers Dampers 1 NOV 2012 ...

Page 2: ...f HVAC ductwork Developed from our well proven door mounting smokegard damper over 40 years of engineering experience in the industry and considerable ingenuity has been applied in the design and construction of this product to produce a damper of high efficiency reliability durability and ease of use INTRODUCTION ...

Page 3: ...ailable as standard upon request Mode Description Page 5A Fully automatic electronic 24v DC opening with fail safe spring 4 closure via 72 C electro thermal link release 5B Fully automatic electronic 240v AC opening with fail safe spring 4 closure via 72 C electro thermal link release 6A Fully automatic electronic 24v DC closure with fail safe spring 4 opening via 72 C electro thermal link release...

Page 4: ...incorporate a fishtail edge detail which with the help of the precision single rack operation enables the blades to close and interlock extremely tightly This provides a tough effective screen against smoke and flames for its maximum 4 hour rating Stainless Steel Edge Seals These provide effective barriers to cold smoke penetration and allow the blades to expand under fire conditions minimising le...

Page 5: ...dication L E D and test facility The test key facility allows local checks to be made on the damper operation The L E D provides the following diagnostic checks GREEN DISPLAY Power supply ON unit set RED DISPLAY Power supply ON but unit in fail safe mode NO DISPLAY Power supply failure unit in fail safe mode The control box also provides an interface for remote status indication smoke detectors an...

Page 6: ...ectro thermal fusible link which will fail at a pre determined temperature 72 C standard and close the damper irrespective of the status of the motor An integral test pushbutton on the electro thermal fuse housing allows for the local testing of the damper operation Motor Control Options A 24V AC or DC supply B 240V AC supply Note All options are complete with position microswitches as standard Re...

Page 7: ...r self tapping into ductwork system List Size Range 200 1000 Diameter in 100mm increments For other circular duct sizes overall sizes as next size up standard size For example 315 duct has 312 spigots and 432 high casing Dim A Modes 9 10 140 Above with terminal box 240 Modes 5 6 240 Square and Rectangular Spigots Ref S Smaller and intermediate sizes available Circular Spigots Ref C Smaller and int...

Page 8: ...ation where a damper larger than 1000mm x 1000mm is required multiple unit assemblies can be provided These can take the form of either a two pack horizontal or vertical assembly or a full 4 pack assembly i e two double assemblies Each module of the assembly is provided with its own control unit and fusible link Note Before installation of any multiple assembly proposed arrangements should be agre...

Page 9: ...may be provided and fitted to a double module assembly not exceeding an overall size of 1524 x 1016mm split on the larger dimension Adjacent frame assemblies must be separated by builders work of a minimum distance of 225mm between installation frame upstand flanges unless approval has been previously obtained from the appropriate authority Where two fire dampers or two double module assemblies ar...

Page 10: ...ding extra feature options Removal of the lid on the damper control box provides access to an internal terminal block for the following wiring connections If in doubt ask Modes 5 6 Control Option A Modes 5 6 Control Option B Standard Wiring Arrangement with Remote Indicator Option O G R L G R N 240VAC 9VA Supply 24VDC 300MA Supply O G R G R switch or volt free contacts O G R L G R N 240VAC 9VA Sup...

Page 11: ...e available upon request 1 2 M Control Option A 1 2 M Control Option B S1 S2 S3 S4 S5 S6 5 80 S1 S2 S3 S4 S5 S6 5 80 L N E M N L 1 2 3 4 5 6 S S 1 2 3 4 5 6 2 Core Screened Communication Cable Belimo Damper Motor DCM Damper Control Module 240V 50HZ Fused Spur option 24V DC 24 V WIRING DIAGRAM Power Supply 24V AC 20 50 60 Hz 24V DC 20 Current Rating 380mA AC max POWER CONSUMPTION Opening 5 watts Ho...

Page 12: ...ressable module has been designed to provide independent operation of individual or groups of dampers in accordance with a pre programmed logic sequence of events Individual dampers are controlled and have there status constantly monitored by the module in response to signals from the pre programmed controller Maximum length of communications 2km In the event of communications failure dampers assu...

Page 13: ...oke Detectors Smoke Detectors are available for in duct or ceiling mounting and can link directly into Modes 5 6 or the output relay of the Power Supply units Detectors are 24v DC Ionisation type Ref In duct 4 wire SD3 4 wire SD2 RED LIGHT SYSTEM TRIPPED GREEN LIGHT SYSTEM SET UNIT No AIIFA No OUTLINE OF PCB NOTE When damper is open yellow is VE When damper is closed blue is VE O R G YELLOW BLUE V...

Page 14: ...time there were not any significant gaps in or around the assembly to permit the passage of flames Air Velocity Against Pressure Drop The graph opposite has been formulated to give an indication of the pressure drop expected through a fully open damper in relation to duct air velocity Airflow Blade Leakage Against Differential Pressure The graph opposite illustrates the maximum leakage obtainable ...

Page 15: ...ve linkage motors and electronic components on the ductgard units are sealed for life there should be no requirement for periodic maintenance and spares are not normally required Items such as reset levers and test keys however can be misplaced over time In this event replacements are readily available from Head Office Trouble Shooting Gilberts Damper Smoke and Fire Control Range All Ductgard unit...

Page 16: ...h return edge channels for retaining the top and bottom seals Damper Blades The damper blades are made from 0 45mm thick 018 BS 1449 stainless steel Blades are formed into a hollow sectional profile The blade ends are formed into individual circular drive shafts and located on brass bushes through the side channels Side seals of 0 25mm stainless as per blade specification are formed and pierced to...

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