Local Icddrb

HVAC BOQ - Local

BILL OF QUANTITY SCHEDULE FOR HVAC SYSTEMProject: BRAC School of Public Health, ICDDRB, Mohakhali, Dhaka Schedule B: Local works (Cost shall be included VAT and IT).

Ref. Items Unit Qty Rate (Tk) Amount (Tk)

B1

1 Water Chiller (CH 01) set 1

2.0 Air Handling Units (Double skinned)

2.1 AHU 6F/1 set 1

2.2 AHU 6F/2 set 1

2.2 AHU 6F/3 set 1

2.2 AHU 6F/4 set 1

2.2 AHU 6F/5 set 1

2.2 AHU 6F/6 set 1

2.2 AHU 6F/7 set 1

2.2 AHU 6F/8 set 1

3 Cooling Tower (CT 01) set 1

4.0 Centrifugal Pumps

5.1 Primary Chilled Water Pumps (PCHWP) sets 2

5.2 Secondary Chilled Water Pumps (SCHWP) sets 2

5.3 Condenser Water Pumps (CWP) sets 2

6.0 Pipe accessories

6.1 Butterfly Valve

Checking, carrying, lifting, installation and commissioning of imported items with supply of consumable materials

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HVAC BOQ - Local

Dia 300mm Nos. 2

Dia 250mm Nos. 7

Dia 200mm Nos. 1

Dia 150mm Nos. 2

Dia 100mm Nos. 1

Dia 80mm Nos. 10

Dia 65mm Nos. 15

6.2 Globe valves Dia 250mm Nos. 2

Dia 200mm Nos. 4

6.3 Check Valves ( swing type) Dia 250mm Nos. 2

Dia 200mm Nos. 4

6.4 Y-Strainer Dia 300mm Nos. 2

Dia 250mm Nos. 4

Dia 80mm Nos. 2

Dia 65mm Nos. 3

Dia 50mm Nos. 3

6.5 Flexible Joints Dia 300mm Nos. 2

Dia 250mm Nos. 8

Dia 200mm Nos. 6

Dia 100mm (for building expansion) Nos. 4

6.6 Auto Vent Valves Nos. 4

6.7 Ball ValveDia 50mm Nos. 16

Dia 40mm Nos. 2

Dia 25mm Nos. 6

Dia 20mm Nos. 20

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7.0 Metering Devices7.1 Pressure Gauge sets 10

7.2 Pipe Thermometer sets 4

7.3 Water Flow MeterBrand: Data industrial (SDI series) or equivalentFor Pipe dia 250mm set 1For Pipe dia 200mm set 1

8.0 Automatic Control System8.1 Variable Frequency Drive, IF44 based

For AHU 6F/1 set 1

For AHU 6F/2 set 1

For AHU 6F/3 set 1

For AHU 6F/4 set 1

For AHU 6F/5 set 1

For AHU 6F/6 set 1

For AHU 6F/7 set 1

For AHU 6F/8 set 1

8.2 3-way Modulating valve with Controller Dia 80mm Nos. 2

Dia 65mm Nos. 3Dia 50mm Nos. 3

9.0 Water Treatment Plant set 1

10.0 Fans For Toilet exhaust sets 4

11.0 Variable Air Volume unitsAHU 6L/1

Air flow rate: 2112 CFM, connecting duct size: 650x400mm set 1

Air flow rate: 438 CFM, connecting duct size: 400x250mm set 1Air flow rate: 724 CFM, connecting duct size: 400x300mm set 1Air flow rate: 366 CFM, connecting duct size: 350x200mm set 1Air flow rate: 326 CFM, connecting duct size: 350x200mm set 1Air flow rate:1122 CFM, connecting duct size: 450x250mm set 1

AHU 6L/2Air flow rate: 957 CFM, connecting duct size: 550x250mm sets 2Air flow rate:200 CFM, connecting duct size: 300x150mm sets 2

AHU 6L/3

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Air flow rate:718 CFM, connecting duct size: 450x450mm sets 4Air flow rate: 1508 CFM, connecting duct size: 500x300mm set 1


AHU 6L/4Air flow rate: 3380 CFM, connecting duct size: 700x500mm sets 3


AHU 6L/5Air flow rate: 1464 CFM, connecting duct size: 600x350mm set 1


Air flow rate: 984 CFM, connecting duct size: 450x300mm set 1Air flow rate: 2070 CFM, connecting duct size: 600x400mm set 1




Air flow rate: 720 CFM, connecting duct size: 450x250mm sets 2



12 Preinsulated Mild Steel Pipe Dia 450 mm (thick 50mm) m 155

Dia 300 mm (thick 50mm) m 20






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Dia 65 mm (thick 38mm) m 35Dia 50 mm (thick 38mm) m 40Dia 40 mm (thick 38mm) m 10Dia 32 mm (thick 38mm) m 5Dia 25 mm (thick 25mm) m 30

13 Mild Steel Piping works Black steel pipe of schedule 40(s) complete with bends, tees, elbows, reducers, socket, union etc. as per requirement, drawing and direction. Pipe work shall be complete with pipe hangers, vibration isolator brackets, support etc. All pipe fittings otherwise specified shall be threaded / welded end type. Cutting of pipe thread and sealing the thread with proper type of sealing compound shall be done leak proof. Pipe work along with fittings shall be suitable to withstand a test pressure of 15g/cm2

All pipe including MS materials required for pipe installation work shall be painted with two coats of red oxide primmer after proper cleaning. Synthetic enamel paint shall have to be used on red oxide primer for all pipe hangers / supports and condenser water piping.

Dia 450 mm m 102

Dia 300 mm m 6

Dia 250 mm m 18

14 Air Terminals14.1 4-way Supply Air diffuser c/w OBD type neck damper.

Neck Size: 250x250mm nos 16Neck Size: 300x300mm nos 40Neck Size: 350x350mm nos 38Neck Size: 400x400mm nos 22Neck Size: 450x450mm nos 22Neck Size: 500x500mm nos 24

14.2 Return Air Grille (Egg Crate type)Neck Size: 150x150mm nos 26Neck Size: 250x250mm nos 2Neck Size: 300x300mm nos 5Neck Size: 350x350mm nos 11Neck Size: 400x400mm nos 11Neck Size: 450x400mm nos 8Neck Size: 500x450mm nos 4Neck Size: 500x500mm nos 5Neck Size: 550x550mm nos 2

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Neck Size: 600x600mm nos 8Neck Size: 850x500mm nos 2


14.3 Fresh Air Louver c/w G4 washable filter- with neck Damper made of Aluminum

Neck Size: 600x600mm nos 4

B2 Local supply, Installation & Commissioning works1 Mild Steel Piping works

Black steel pipe of schedule 40(s) complete with bends, tees, elbows, reducers, socket, union etc. as per requirement, drawing and direction. Pipe work shall be complete with pipe hangers, vibration isolator brackets, support etc. All pipe fittings otherwise specified shall be threaded / welded end type. Cutting of pipe thread and sealing the thread with proper type of sealing compound shall be done leak proof. Pipe work along with fittings shall be suitable to withstand a test pressure of 15g/cm2

All pipe including MS materials required for pipe installation work shall be painted with two coats of red oxide primmer after proper cleaning. Synthetic enamel paint shall have to be used on red oxide primer for all pipe hangers / supports and condenser water piping.

Dia 200 mm m 1

Dia 150 mm m 1

Dia 100 mm m 1

Dia 80 mm m 1

Dia 65 mm m 1Dia 50 mm m 1Dia 40 mm m 1Dia 32 mm m 1Dia 25 mm m 1Dia 20 mm m 1

2 Pipe and fitting insulation with jacketing Bare pipe, pipe fittings and Valves shall be insulated with injectable PU foam insulation of same thickness of connected piping. Before injection of PU insulation concern area shall be jacketed with 24 SWG GI sheet.



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3 Sheet metal DuctingDuct works include Tees, bends, elbows, reducers, offsets, etc. with prime quality sheet. The ducts shall be complete with necessary angle, flange bracing. Stiffeners etc. made of M.S. Angle / Flat bar. Approved sealant shall have to be used to make duct leak proof. Before installation duct inside shall be cleaned. All hangers shall have to be painted with red oxide paint. SMACNA standards shall have to be followed for construction.

Duct made of 20 SWG sheet sqm 850



4 Duct External InsulationSupply and fixing of duct insulation of Poly Elastomeric Foam lnsulation with Thermal conductivity i.e. K value shall not be more than 0.27 KkCal/m.h. deg C at 50 to 90 F mean temperature. density shall be minimum 30 kG/m3. Insulation shall have Aluminum Foil pasted vapor barrier. Use self adhesive Aluminum tape, glue and all other accessories for fixing insulation. Before fixing duct surface shall be cleaned properly. Air gap below insulation will not be permitted.

For supply air duct (15mm thick) sqm 3500

For return air duct (12mm thick) sqm 1600

5 Duct Acoustic LiningSupply and fixing of self adhesive type Duct acoustic lining made of elastomeric nitrile rubber open cell foam, specially made for

sqm 800

Thermal conductivity: 0.045W/m.K@20 C

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HVAC BOQ - Local

Thickness: 10mm, density: Min 140 kg/m3Surface spread of Flame: Class 1

6 Air TerminalsAir terminals shall be constructed with extruded aluminum with powder coating finishing. Thickness shall be not less than 18 SWG.

6.1 4-way Supply Air diffuser c/w Opposed blade type neck damper. Damper shall have worm gear for operating from room side.

Neck Size: 250x250mm nos 16Neck Size: 300x300mm nos 40Neck Size: 350x350mm nos 38Neck Size: 400x400mm nos 22Neck Size: 450x450mm nos 22Neck Size: 500x500mm nos 24

6.2 Return Air Grille (Egg Crate type)Neck Size: 150x150mm nos 26Neck Size: 250x250mm nos 2Neck Size: 300x300mm nos 5Neck Size: 350x350mm nos 11Neck Size: 400x400mm nos 11Neck Size: 450x400mm nos 8Neck Size: 500x450mm nos 4Neck Size: 500x500mm nos 5Neck Size: 550x550mm nos 2Neck Size: 600x600mm nos 8Neck Size: 850x500mm nos 2


6.3 Fresh Air Louver c/w G4 washable filter- with neck Damper made of Aluminum

Neck Size: 600x600mm nos 4

7.0 Duct Flexible Joint nos 8Duct connected with Fan Coil Units, Air Handling Units, Fans shall be done with Nylex or equivalent Flexible connection. Width shall be 250 mm. Constructional details shall have to be shown in Shop drawing.

8.0 Volume Control Dampers sqm 20

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HVAC BOQ - Local

Opposed blade type Volume Control Damper shall be made with 18 SWG Galvanized iron sheet metal construction painted with 2 coats of synthetic black paint. The Damper shall be flanged end type suitable to mount on flanged end duct. The depth of Damper shall be 150-160 mm. The Damper shall have adjustable locking arrangement from outside duct. Before positioning the Contractor will coordinate with the Client for keeping ceiling opening for maintenance and operation. Damper sizes and location shall be as per drawing.

9.0 Split Damper pcs 85Split Damper shall be constructed with 24 BWG sheet steel wrapped over aerofoil type wooden frame. Damper shall be complete with adjustable locking arrangement and suitable to operate from outside of duct. Constructional details shall have to be shown in Shop drawing.

10.0 Expansion Tank set 1Expansion Tank shall have to be constructed with double layered PVC tank equivalent to Gazi/Padma/Polycon. It shall be complete with water line with float valve assembly, quick fill arrangement, over flow line, drain line and chilled water system pipe connection line and inspection door.

Capacity : 2500 liter

11.0 Mechanical Services Switch Board (MSSB)Electrical power distribution board shall be constructed with16 SWG sheet steel painted with epoxy paint and shall house MCCBs, MCBs, Busbars, Starters, Overload protector for motors, etc. All MCCBs, MCBs, shall be of brand DORMAN SMITH / SIEMENS /ABB or equivalent. Front panel shall be with Voltmeter, Ampere meter, phase indicators, Start stop button, etc. Other details shall be as per drawing and corresponding technical Specifications.

kW rating mentioned are approximate. Bidders must have to consider components sizing based on kW rating of their selected equipment.

11.1 MSSB 01 for Chiller Plant RoomDetails shall be as per Schematic drawingsMajor componentsIncoming MCCB, 1000A, TP, 50kA Copper Busbar, TPNE Outgoing MCCB, TP 800A, 50kA for one ChillerOutgoing MCBs, 50A, TP, 25kA for two PCHWPs (1 SB)

Outgoing MCCBs, 80A, TP, 25kA for two SCHWPs (1 SB)

Outgoing MCCBs, 125A, TP, 25kA for two CWPs (1 SB)

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HVAC BOQ - Local

Outgoing MCBs, 50A, TP, for one Cooling TowerStar-Delta starter for PCHWPsStar-Delta starter for SCHWPsStar-Delta starter for CWPsStar-Delta starter for Cooling TowerReverse Phase protectorAmpere meters for all Chiller, Pumps and Cooling Tower.

Spare CB SP, 0.5 kW rating

11.2 MSSB for AHU 6F/1 & 6F/2 set 1Incoming Circuit Breaker (MCCB, 50A, TP, 25 kA ) Copper Busbar, TPNE Outgoing MCB for VSDs of AHU 6F/1, 20A, 6kAOutgoing MCB for VSDs of AHU 6F/2, 32A, 6kASpare CB SP, 0.25 kW rating

11.3 MSSB for AHU 6F/3 & 6F/4 set 1Incoming Circuit Breaker (MCCB, 80A, TP,25 kA ) Copper Busbar, TPNE Outgoing MCB for VSDs of AHU 6F/3, 32A, 6kAOutgoing MCB for VSDs of AHU 6F/4, 50A, 6kASpare CB SP, 0.25 kW rating



12.0 Electrical WorksPVC insulated PVC sheathed copper conductor single / multicore cable complete with PVC conduit, Tray / Ladder and copper conductor (ECC). Conduit works shall be complete with Bends, Tees, Junction box, etc. The others details shall be as per Technical Specifications and drawing.

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HVAC BOQ - Local

kW rating mentioned here are approximate. Bidders must have to consider cable sizing based on kW rating of their selected equipment.

Power cable12.1 For Chiller 325 kW (5 lines)

NYY 3x1cx630 rm+ BYA 1cx300 sm +BYA 1cx6 rm rm 20

12.2 For PCHWPs, NYY 6x1c-10rm + BYA 1cx10 rm rm 30

12.3 For SCHWPs, NYY 6x1c-16rm + BYA 1cx16 rm rm 20

12.4 For CWPs, NYY 6x1c-35rm + BYA 1cx16 rm rm 40

12.5 For CT, NYY 6x1c-10rm + BYA 1cx10 rm rm 40

12.6 For AHU 6F/6, (7.5 kW, Via VSD)NYY 3x1c-4rm + BYA 1cx4 rm rm 10

12.7 For AHU 6F/1, 6F/3, 6F/5, 6F/7, (11 kW , Via VSD)NYY 3x1c-6rm + BYA 1cx6 rm rm 40

12.8 For AHU 6F/2 and 6F/4 (15 kW & 18 kW , Via VSD)NYY 3x1c-10rm + BYA 1cx10 rm rm 20

12.9 Control wiring lot 1

13.0 Split type Air conditioners Split Air conditioners shall be composed of one outdoor Condensing unit and one Indoor Fan Coil Unit. The Condensing unit shall be consisted of compressor(s), Air Cooled condenser, Condenser Fan, etc. The Indoor Fan Coil units are consisted of evaporator coils with fans, etc. These units shall be factory assembled, internally wired, fully refrigerant charged condensing unit, tested under strict quality standards. The Condensing unit shall be suitable for outdoor installation. Capacity be as per following schedule.

Entering air temp to FCU: 25 C DB / 18 C WBEntering air temp to Condenser: 37 C DB / 29.5 C WBAccessories: Wall mounted Room Thermostat

13.1 Cooling capacity: 18,000 BTU/hr sets 2Evaporator / FCU Air Flow rate: 600 CFM

13.2 Cooling capacity: 12,000 BTU/hr sets 2Evaporator / FCU Air Flow rate: 400 CFM

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HVAC BOQ - Local

14.0 MS Flange with dead Flanges, Nut-bolts, gasketsFor making future connection with Master HVAC layout

Dia 300mm sets 3Dia 250mm sets 12Dia 200mm sets 9Dia 150mm sets 14

15.0 Water Treatment Chemicals lot 1Bidders are requested to submit calculation of Chemical requirement from their respective water treatment service provider regarding chemical requirements on following basis:

Condenser Water flow rate: 1667 l/sAverage evaporation loss: 1%Operating hour: 9 hour/day5 days per week

16.0 Shop drawing and Documentation job 1Preparation of detail Shop drawing including, layout drawing, section details, schematic drawing, etc. Get approval of shop drawing before any fabrication or installation works. Shop drawing must be coordinated with other services likely Electrical cabling, Light Fixtures, False Ceiling and Interior design. The work also includes:a). Show actual dimension of Equipment.b) Submit actual kW rating of all equipmentc) Reconfirm Electrical cable sizing d) Reconfirm Ampere ratings of AC Panels' components.e) Submit Electrical connection diagram of AC Panelsf) Submit General arrangement of AC Panelsg) Submit Plinth drawing for Chillers, Pumps, Pipe supports

h) Submit Electrical and P&I Diagram of Chilleri) Submit advance copy of Installation, Operation and maintenance manuals of Chillers, Pumps, FCUs, etc .Contractor should prepare this drawing at site coordinating with other services.

17.0 Tagging and Identification job 1Tagging and identification of Chillers, Pumps, AHUs, Fans, Pipings, Cablings, etc. as per recommendation of the Consultant.

18.0 As-Built drawing job 1Preparation and submission of As-built drawing in following forms:

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HVAC BOQ - Local

One set in tracing paper, size A1Two sets print out in A1 PaperSoft Copy in CD in AutoCAD Version 2004Soft Copy in PDF Version

19.0 Testing, Commissioning and Balancing job 1After proper installation and certification the system shall be tested, commissioned and balanced as per direction and recommendation by the Manufacturer as well as HVAC Designer. Contractor shall do (but not limited to) following works under this clause.a. Prepare and submit Commissioning protocol and get approval from Consultant.b. Carry out duct inspectionc. Carry out pipe pressure testingd. Carry our Electrical Cabling testinge. Pipe flushing and charging of Treated Waterf. Chemical cleaning of rust, etc.g. Testing of condensate water drainage slope with waterh. Testing of AHU, Fans with Air and Water Balancing.i. Testing and Balancing of Pumps with Chilled waterj. Cleaning of Y Strainersk. Commissioning of Chillersl. Safety protection and cutouts shall be tested individuallym. Commissioning of Automatic Control systemAll testing and commissioning works must be documented in approved formats. All of these documents must be jointly witnessed and signed by the Client and Contractor's authorized Engineer.

20.0 Documentation job 1Compiling Documents with followingsName plate data of all equipmentsRecommended list of Spare parts.Submission of Operational and Maintenance manual for Chillers, Pumps, etc. Submission of Control schematic drawing, operation procedure and maintenance - trouble shooting manuals for Automatic Control systems.Compiling of certified Testing and Commissioning Documents.

Compiling of certified As-built drawings.Preparation of periodic servicing and maintenance schedule. etc.

21.0 Operation and maintenance (9 hr/day basis) year 1

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During operation and maintenance work, the Contractor shall have to depute one Electrical / Mechanical Engineer, one technician and one operator. All must have experience in this field for operation and maintenance of the system. During operation and maintenance if any defects is detected, it is to be rectified by the contractor at his own cost. Log book for one hourly record shall be maintained by the Contractor and shall be submitted to the Owner in every week.

Total Tk.

Note: Quantity mentioned are estimated. Actual payment shall be made based on work measurement.

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Local Icddrb

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