MANUAL: Installation Operation and Maintenance · 2020. 1. 15. · DC-series: Installation,...

D_DC‐001‐PV00‐00, IOM 1 | Page

MANUAL:InstallationOperationandMaintenanceForDC‐SeriesULClassifiedDampers

SAFETY WARNING:

Improper installations, alterations, adjustments, maintenance can cause malfunction of product, which may lead to serious accidents, injury or death, please read the manual carefully for proper installation and maintenance.

RECIVING AND HANDLING, STORAGE: Upon receiving, check carefully for any visible damages, if found record it. Make sure the dampers are in good condition, motor fixation, shaft, seal...etc. are intact before running a test trail or installing into the wall. Dampers must be kept dry and clean, has to be stored Indoor and care for protection from dirt, dust and the weather is Taken.

Do not operate, alter or install the damper if damage found, due to shipping, handling.

DC-series: Installation, operation, and maintenance manual


This Installation Instruction applies to DC series Dampers mounted in the plane of an UL approved fire partition.

Important General Notes: 1. The dampers are designed for operation in both, vertical and horizontal position. 2. The Damper is Bi-Directional , Actuator may face the Air Flow or Damper may Face the Air

Flow 3. The dampers are to be installed square and free from twisting or racking. The dampers

shall not be compressed or stretched into the opening. 4. Transportation and installation of the dampers shall be handled by lifting free area of the

sleeve or frame. Please refer the below Figure.1. 5. Special care shall be given to the damper before installation and after to insure it is

protected against dirt, weather, mortar and drywall dust, wall texture and paint. 6. The damper should not be lifted holding the motor or shafts, which will damage the

intended functionality.

Any of these conditions could cause the damper not to operate correctly and void the warranty.

Suitable access to inside duct is to be provided for inspection and replacement of parts such as heat response devices as per NFPA 90A and local authority having jurisdiction.

As with all joints, contractor must seal duct-collar connections in the field after installation.

Product should include

1- DC-Damper 2- Sleeve 3- Actuator Motor 4- TRD with Junction Box 5- BSS Box (Optional) 6- Flushed Corner Angles

(Upon Request) 7- Installation Instruction.

ELECTRICAL GUIDELINES: IMPORTANT

All the electrical work should be performed by a qualified Electrician. Verify power before wiring actuator. SHARQAWI FACTORY is not responsible for any damage, or failure of the Damper, caused by incorrect field wiring. To avoid causing death or serious bodily harm for the occupants, kindly follow all instructions carefully. Dampers must close completely to preserve the integrity of the fire smoke separation.

Figure‐1 Figure‐2



Note: This IOM manual is sole property of Sharqawi Air distribution factory, and holds good for our DC-Series, should not been taken as standard for all dampers.

Instructions:

1. Clearance Required for Expansion between damper sleeve & wall /floor Openings

Due to the thermal expansion of fire dampers & sleeves during periods of extreme heat, it

is essential that openings in walls or floors be larger than the damper allow for this expansion. Minimum clearances between the outside of fire damper sleeve assemblies & wall/floor required are:

a. Galvanized Steel: 14.2 mm per linear meter of damper – both dimensions where in ¼” (7 mm) is minimum.

b. For Sleeve Type R (Rectangular flange) , Type C (Circular Collar) , Type O (Oval

Collar) a 64mm should be added to the Ordered Duct Size c. The sleeve may rest on the bottom of the opening, and need not to be centered.

(Fractional dimensions shall be taken as the next largest whole integer.)

d. Clearance Should not exceed 1 ½ inch (38mm) for Any Damper Size

e. The clearance explained is total clearance (ignoring fastener heads)

For Example:

36 in. x 12 in. (914mm x 305mm) damper with 1.6mm sleeve require minimum clearance of 3/4 in. (20 mm) addition to 2 times sleeve thickness(1.5x2) on width & 1/4 in. (7 mm) on Height addition to 2 times sleeve thickness(1.5x2),

i.e.: (914.4mm + 2x 1.5mm + 14.2mm) Width side

(305mm + 2x 1.5mm + 7mm), Height Side, Ignoring fasteners head.

Therefore wall Opening should be 932mm (Width) x 315mm (Height).

Figure‐3 Note: The Damper shown is for representation



2. Damper Sleeve: Sleeves shall be of the SAME GAUGE or heavier than the duct to which it is attached, if one of

the breakaway connection is used as defined in the SMACNA Fire Damper Guide for HVAC Systems and in NFPA 90A.

Gauges shall conform to SMACNA or ASHRAE duct standards. (See Table 1) Sleeve shall terminate at both sides of wall within dimensions shown (Figure - 1).

3. Improper DC-Series Dampers installation Note 1: Sealing of the fire damper retaining angles

is not a requirement of an approved damper installation. This detail is seldom specified by system designers & is virtually never included in the contractor’s pricing for the dampers on a project. If the local authority having jurisdiction mandates that the angles be sealed, contractors should issue a Request for Information (RFI) to design professionals such that the proper approved sealants be used. In no case should the retaining angles be sealed with any product not approved by SHARQAWI FACTORY including through Penetration Fire stop Products. Using unapproved products is a violation of SHARQAWI FACTORY’s conditions of test & listing, void the UL listing of the damper & render the damper inoperable.

Note 2: Introduction of any materials including mineral wool, ceramic fiber or sealants

of any kind into the required expiation space between the damper sleeve & fire partition has not been tested, has not been approved, & is not permitted by SHARQAWI FACTORY. Doing so is a violation of SHARQAWI FACTORY’s conditions of test & listing, void the UL listing of the damper & render the damper inoperable. Indiscriminate & unnecessary deviations from standard fire damper installations should be avoided. Unless deviation is specifically approved by SHARQAWI FACTORY, it compromises the function for which the damper was ultimately installed.

.

Sleeve Gauge Duct Dimension Type of Duct to Sleeve Connection Permitted 14 GA. (0.075 in.) [2mm] All Duct Sizes Rigid or Breakaway

16 GA. (0.060 in.) [1.5mm] 36 in. (914mm) max. width24 in. (610mm) max. Height 24 in. (610mm) diameter

Rigid or Breakaway*

16 GA. (0.060 in.) [1.5mm] All Duct Sizes

Breakaway only 18 GA. (0.048 in.) [1.2mm] 85 in. (2159mm) wide and over

20 GA. (0.039 in.) [1.0mm] 55 in. ‐ 84 in. wide (1397mm ‐2134mm) Sleeve thickness must not be less than the gauge of the connecting duct.UL Standard 555 requires all ducts to terminate at fire damper sleeves. *Rigid refers to Duct mate connection, considered as breakaway connection, by following the installation instructions as shown in Figure 5

Note 1

Note 2

Detail‐ 1

Table ‐ 1



4. Retaining Angles Retaining Angle is supplied by SHARQAWI FACTORY upon request

SHARQAWI Retaining Angles Saves Installation Time & Have More Rigidity at the Same Time by Using

a- Pre-Drilled Angles b- Flush Corners

In Case of field supply a) Retaining Angles must overlap structure

opening 1 inch (25.4 mm) minimum & cover Corners of opening.

b) Retaining angles for 1.5 hour rated dampers with a width and height 36 in. (914mm) or less must be a minimum of 16 GA. (1.5mm). Retaining angles for all 3 hour rated dampers and all dampers with a width or height greater than 36 in. (914mm) must be a minimum of GA 14 (2.0mm).

c) The leg of the retaining angle on the damper sleeve shall be a minimum of 30mm. The leg of the retaining angle on the wall/floor shall be long enough to cover the annular space and overlap the wall/floor by a minimum of 30mm.(See Figure -5)

5. Fastening Retaining Angles To Sleeve

Retaining Angles should not be fastened to the wall / floor material.

Retaining Angles should only sandwich the partition & allow for damper / sleeve expansion during the season of intense heat.

Securing Retaining Angles to Sleeve to be Evenly Spaced.

Secure Retaining Angles to Sleeve on 1.18” at the Corners Secure Retaining Angles to Sleeve on 3.5” centers (90 mm) (See Figure-4) with:

a. ½” (12mm) long welds. b. ¼” (6 mm) bolts and nuts (Recommended).

Figure ‐ 4

Figure ‐ 5

Figure ‐ 6



6. Fire Damper Opening Protection

Openings are shown according

to the wall type (Figure 6, 7, 8). Thickness & type of resistive

material may vary with jurisdiction.

Specific framing requirements of openings should be provided in the architectural & structural drawings that are submitted for building permits.

7. Recommended Preparation of

openings in Wood and Metal Stud Walls

Frame wall openings as shown

in Figure - 9. Double vertical studs are not

required for openings 36 in. x 36 in. (914mm x 914mm) or smaller.

Double horizontal studs may be used to frame opening.

Gypsum wall board must be fastened 12 in. (305mm) on center to all stud and runner flanges surrounding opening (see Figure -9).

All construction and fasteners must meet the requirements of the appropriate wall design. (See UL Fire Resistance Directory)

8. Duct Breakaway Connections

Breakaway joints of the types shown in Figure - 9 shall have no more than two No. 10

(4.8 mm diameter) sheet metal screws on each side and on the bottom located in the center of the slip pocket and shall penetrate both sides of the slip pocket.

Figure ‐ 7

Figure ‐ 9

Figure ‐ 8

Figure ‐10



Vertical Fire / smoke Dampers : Breakaway joints of the types shown in Figure - 10 shall either be on the top and on the bottom of horizontal ducts and on the sides; or shall be provided on the top and bottom of the horizontal ducts with flat drive slips on the sides as illustrated in Figure - 8. Flat drive slips as illustrated in Figure - 9 shall not exceed 20 inch (508 mm) in length.

Horizontal Fire / smoke Dampers : Breakaway joints of the types shown in Figure - 10 shall either be on all sides of vertical ducts; or shall be on one pair of opposite sides of vertical ducts with flat drive slips as illustrated in Figure - 8 on both other opposite sides. Flat drive slips as illustrated in Figure - 10 shall not exceed 20 inch (508 mm) in length.

Round Or Flat Oval Spiral Ducts attached to round or oval collars which are part of a

fire damper sleeve used as breakaway joints shall be attached with No. 10 (4.8 mm diameter) sheet metal screws spaced equally around the circumference of the duct as follows in (a) and (b). For flat oval ducts, the diameter is determined to be the largest (major) dimension of the duct.

a. Duct diameters 22 in (559 mm) and smaller shall have three screws.

b. Duct diameters greater than 22 in up to and including 36 in (914 mm) shall have five screws.

Proprietary Flange System Breakaway Connections (Ductmate)

Flanged connection systems: DuctMate is UL approved as a breakaway connection with below must conditions

a. Don’t Bolt Corner b. Use Metal Cleat of 127m (5 in Long) See Figure.12 c. Follow the Below Spacing Chart , See Figure 12.

9. TRD – Applicable for Model C and F Only

Shaqawi factory manufactures in house TRD (165F),where in UL approved Bimetallic manual reset type swicth is used . The TRD is standard provided with all factory configured normally closed dampers , it is factory installed .

Operation and Installation :

Figure ‐ 12

Figure ‐ 11



(a) In case of Fire, The Bi-metalic TRD breaks the power supply at rated temparature to the actuator.

(b) This will in-turn break power to supply to the actutaor, hen the actuator rotates the blade to close postion due to its spring return action.(Fail to Close Operation)

(c) In case of temporary failure or testing, there is a manual reset switch which can be used to reset the circuit.

(d) For genral wiring detail, please refer the below wiring daigram Figure 13.

Maintenance guidelines for DC-Series: Make sure the interior and exterior sides of dampers are free from any visible defects, and if there are any disintegration, rust or wear during each and every maintenance schedule, and follow some of below guidelines:

If the Damper is not Functional, Please contact factory. Make sure the Shaft, Blade to shaft linkage, pin linkage, cotter pin are intact, if any of the

linkage pins or lock pins have dislocated, need to replace them. Damper blades, Shafts, bearings, linkages should be cleaned and lubricated with a light

spray oil (Don’t use any of petroleum based lubricant, use one silicone based, make sure not to lubricate the nonmetallic parts.

Damper should be fully operable under rated airflow condition, all the blades must fully close and open during the cycle, in case of any blade to Shaft linkage or lock are not functional, please contact the factory.

Damper Test Run Procedure:

1. Make sure all the wiring and power connections are correct, and proper power supply is supplied.

2. Please check if there are any kind of obstruction to the blades or to the drive Arm shaft. 3. Under normal airflow conditions, apply heat or increase the temperature within the damper,

at appropriate temperature the blades will tend to close, allow the blades to close. Once the damper is closed, check that all blades are completely closed.

4. Once the damper is closed, use the manual Reset button provided in order to set the damper into open position. Or vice versa as per the intended application.

5. Maintain the log sheet of the damper testing dates along with its follow procedure. 6. Repeat the testing procedure as per the periodic routine.

Figure ‐ 13

MANUAL: Installation Operation and Maintenance · 2020. 1. 15. · DC-series: Installation,...

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