Package - I Part IV AC WORKS

Pacakge -I Part-IV AC Works IMGEOS and NDEM

The contractors scope of work shall consist of providing airconditioning to the spaces to the specified standards indicated herein and his scope of supply shall include for but not be restricted to the following:

IMPORTANT:

The project is being put up for a green building rating by LEED certification hence equipment of high efficiency is desirable.

All data and quantities, etc. given here in this annexure take precedence over quantities; etc. mentioned elsewhere. Contractors shall however bring out any discrepancy clearly. S.No. 3.1 WATER CHILLER Quantity

Providing, installing and commissioning of chillers Each 250 Tr size, each factory fitted with centrifugal compressors/ condensers and chillers - refrigerant shall be R134A and usable by codes in the equipment for the life span of the equipment each chiller shall be equipped with atleast the following:- chiller to be min 100F TD - i.e. flow rate of 2.4 US gpm / Tr (say 6.40 C / 120C)

3.1.1

1

3.1.2

1

3.1.3 3.1.4

1 1

3.1.5

1

3.1.6*

1

3.1.7

1

piping out of heavy duty steel including nitrile rubber suction line insulation-chiller insulation complete with water proof finish

Page 1 of 27


S.No.

Quantity

3.1.8

1

(set)

3.1.9 equipment

1

applications nuts, bolts etc., etc. 3.1.10 1

painting(chillers shall be factory painted). 3.1.11 1

(minimum 6500 m3 / H at free flow)

TOTAL PRICE FOR THE ABOVE CHILLER AND ANCILLARIES AS ABOVE

PRICE 3.1: - Please indicate a L.S works contract price for the above chiller and ancillaries supplied, installed commissioned and handed over at site.

* Item 3.1.6.may be omitted where condensers have a discrete Ref. sub cooling - circuit IMPORTANT:

In case the contractor is not able to offer sinlge circuit 250 Tr chillers he may offer two circuit

models - giving reasons. - Chiller offers must be accompanied by a factory printed cataloge clearly indicating selected model / operating point / noise levels and gauranteed conditions marked out etc. (xerox will not be accepted; offers without this basic need will not be considered).

Page 2 of 27


S.No.

Quantity

Item Description 3.2 TWO SCREW AIR COOLED PACKAGE WATER

CHILLERS

Providing, installing and commissioning of chillers Each 125 Tr size, each with dual circuit factory fitted with screw compressors/ condensers and chillers refrigerant shall be R134A and usable by codes in the equipment for the life span of the equipment each chiller shall be equipped with atleast the following:chiller to be min 100F TD - i.e. flow rate of 2.4 US gpm / Tr (say 6.40C / 120C)

3.2.1

2

3.2.2

2

3.2.3

2

3.2.4

2

3.2.5

2

3.2.6* 3.2.7

2 2

3.2.8

1

3.2.9

1

3.2.10

1

blocks,(folding rain canopy over control panel) charge of gas, oil in the refrigeration and electrical circuits and painting, etc, etc. for the a.c. roof top equipment inc factory made AV mounts with horizontal and vertical limit stops suitable for seismic applications

Page 3 of 27

Pacakge -I Part-IV AC Works IMGEOS and NDEM S.No. Quantity

3.2.11 3.2.12

3.2a

1

cooled centrifugal chiller + 2 x 125 TR air cooled screw chillers efficiently ( If required)

PRICE 3.2: - Please indicate a L.S works contract price for the above chiller and ancillaries supplied, installed commissioned and handed over at site.

* Item 3.1.6.may be omitted where condensers have a discrete Ref. sub cooling IMPORTANT: circuit

Chiller offers must be accompanied by a factory printed cataloge clearly indicating selected model / operating point / noise levels and gauranteed conditions marked out etc. (xerox will not be accepted; offers without this basic need will not be considered).

3.3 PLANT ANCILLARIES 3.3.1 Horizontal double skin - insulated (Min 25mm PUF) GI

precoated sheet AHUs for the cooling circuits as specified to match duty conditions complete with PLUG fan,fan motor, direct drive, gaurd and VSD starter with incoming TP& N Isolator, coil and filter (including MERV 13filters) - AHU to be as in table 3.1 at the end of Annexure.

LOT (as in table 3.1)

(AHUs to be sized for the desired SHF and (40 mm SP minimum) carefully and full data furnished, (AHU shall have minimum 4 row coils) and be complete with fire retardent double layer plastic coated canvas AHU access doors shall have electrical interlocks with fan - i.e. fan to operate only when door is shut. All AHU will have discharge dampers on them. AHU's of

3.3.2

1525 1230 325 3.3.3

6

Page 4 of 27


110 6

25 150 6 50 2

4 3.3.4

6 110 6 25 150 6 50 6 3.3.5 195

3.3.6

1

3.3.7

690

(Crown 150 aluminium) fibreglass factory prefaced with aluminium foil (sq.m) and tied down with chicken wire mesh and duly banded with nylon bale straping etc.

Page 5 of 27


3.3.8

pumps and matching squirrel cage - SPDP motors chilled water pump sets - complete with insulationand

drip tray

- pump to be complete with insulation mechanical seals and VSD starters

2 4 2 2 2 2 3.3.9 14

3.3.10

2 3.3.11 3.3.12 2 2

3.3.13

2 3.3.14 1

3.3.15

1

3.3.16

2 2

Page 6 of 27


2 12 15 17

3.3.17

20

3.3.18*

Nil

3.3.19 3.3.19.1

9 13 3 3.3.19.2 3.3.19.3 250 25

3.3.19.4

**

3.3.19.5

25

*

**

included only under the head BMS (not duplicated).

Page 7 of 27

Pacakge -I Part-IV AC Works IMGEOS and NDEM S.No. NOTE: 1 Quantity

2

3

in it. 4

box, chasis, suspension rods, A.V. mounts, canvas, duct plenums and collars and SA/RA grilles (Extruded Aluminium Air Master make) the FCUs shall also have 3 speed fan switch and remote controller - valves & RA sensors are to be set out in the BMS costing..

The FCUs price of various size shall have SA/ RA grilles / diffusers to quantities as below respectively Sl .no 1 2 3 4 5

6

Condenser pump 250 Tr 1000 Igpm 50' head (25 hp) Chiller Py. pump 250 Tr 600 Igpm 230' head (75 hp) Chiller Py. pump 125 Tr 300 Igpm 230' head (40 hp) Chiller Sy. pump BlockA 195 Igpm 80' head (7.5 hp) Chiller Sy. pump BlockB 220 Igpm 130' head (15 hp) Chiller Sy. pump BlockC 460 Igpm 150' head (40 hp) Chiller Sy. pump BlockB 400 Igpm 175' head (40 hp) 3.4 PRECISION AIR HANDLING UNITS FOR SELECT DATA PROCESSING AREAS

Page 8 of 27


3.4.1

13

water from the main plant (70C / 120C) with a room temperature of 200C and air quantity - evaporator min 700 cfm / Tr unit to be complete with: -

Digital type scroll compressors; MERV 8 filters MERV 13 filters, chilled water cooling coil, water and ref flow controls - BMS compatable auto controls - direct

driven fans - down discharge - discharge dampers, RH control reheat heaters / pan type humidifiers all housed in a PC gi sheet enclosure as called for AHUs.

3.4.2

13

3.4.3 3.4.4

13 200

3.4.5

100

3.4.6

3.4.7

5

*

3.5

Work and its insulation; pipes to be as per IS 1239

Page 9 of 27

Pacakge -I Part-IV AC Works IMGEOS and NDEM S.No. Quantity Item Description

3.5.1

Providing, installing and commissioning of a chilled

water system comprising of components generally as per item 3.5.1 to 3.5.9 - pipes to be MS B class of TATA make / JINDAL / SAIL. Insulation shall be preinsulated on pipe with 50mm PUF (36 kg/m3 density) for 150mm dia and above and 40mm PUF for 150mm

dia below (36

kg/m3 length in (m) - Pipes of larger dia (beyond the TATA range) may be non - TATA make and min 8 mm wall

thickness

3.5.1.1

Nil

3.5.1.2 3.5.1.3 3.5.1.4 3.5.1.5 3.5.1.6 3.5.1.7 3.5.1.8 3.5.1.9 3.5.1.10 3.5.1.11 3.5.1.12 3.5.1.13 3.5.1.14

Nil Nil Nil 44 1700 600 470 1050 160 320 580 180 12

Page 10 of 27


3.5.1.15 3.5.1.16

600 500

3.5.2

50 mm dia and above shall be of Audco Aqua seal and smaller ones shall be Audco or Advance type Valves will be complete with 40/50mm PUF insulation and finish as for pipes (24 gauge gi)

3.5.2.1 3.5.2.2 3.5.2.3 3.5.2.4 3.5.2.5 3.5.2.6 3.5.2.7 3.5.2.8 3.5.2.9 3.5.2.10 3.5.2.11 3.5.2.12 3.5.2.13

Nil 1 4 6 Nil 12 Nil Nil 27 11 Nil 19 32

Page 11 of 27

Pacakge -I Part-IV AC Works IMGEOS and NDEM S.No. 3.5.3 Quantity

3.5.3.1

8

3.5.3.2 3.5.3.3 3.5.4

4 2

3.5.4.1 3.5.4.2 3.5.4.3 3.5.5

8 4 2

Anderson/Advancemake complete with valved probes - valves will be complete with 40mm PUF insulation and finish as for pipes (24# gauge gi) The priced indicated below will include for the supply of one, hand held, computer device for the balancing work (this is to be furnished along with the BMS).

3.5.5.1 3.5.5.2 3.5.5.3 3.5.5.4 3.5.5.5

Nil 1 4 6 Nil

Page 12 of 27


3.5.5.6 3.5.5.7 3.5.5.8 3.5.5.9 3.5.5.10 3.5.5.11 3.5.5.12 3.5.5.13 3.5.6 Nil Nil Nil

12

27 11

19 32 34

3.5.7

34

3.5.8

4

3.5.9

150

Note: 1)

2)

3)

Page 13 of 27


4)

3.6 3.6.1

3.6.1.1 3.6.1.2 3.6.1.3 3.6.1.4 3.6.1.5 3.6.1.6 Nil Nil Nil

70

20

20

3.6.1.7 3.6.1.8 3.6.2 Nil

12

3.6.2.1 3.6.2.2 3.6.2.3 Nil

3

3

Page 14 of 27


3.6.2.4 3.6.2.5 3.6.2.6 3.6.2.7 3.6.2.7 3.6.3

Nil Nil 2 2 Nil

3.6.3.1 3.6.3.2 3.6.4 Nil

2

3.6.4.1 3.6.4.2 3.6.5 Nil

2

3.6.5.1 3.6.5.2 3.6.5.3 3.6.5.4 3.6.5.5 3.6.5.6 Nil Nil Nil Nil

3

2

Page 15 of 27


3.6.6 3.6.7

9 9

1)

2)

3) 4)

contractor. 3.7 3.7.1

handing over - following switch boards of cubicle type complete with MCCB; alluminum bus bars and instrumentation, etc., with Emerson make energy meter as set out in the drawings and specifications -compressor motors - must start from an integeral panel of the chiller unit which will have a single feeder from the in the SB - The chiller panel shall also have an isolator (The starters shown in the switch board drawing are not to be included SB price. These will be supplied to match the motors - However the switch board contractors cost will include for mounting and connecting them into the switch board).

3.7.1a

1

3.7.1b

1

3.7.1c

1

3.7.1d

1

handling over - Central PAHU panel as in 3.7.1 above (wiring diagram -4) for PAHUs as in drawing.

Page 16 of 27


3.7.2a

1

3.7.2b

1

3.7.2c

1

3.7.2d

1

3.7.2e

1

3.7.3

4 3.7.4

27 2 2 23

3.7.5

7

3.7.6

400 350 2000

Page 17 of 27


100 MCB DB etc 1200 CH /Sy.pumps/PAHU 300 MCB DB 150 CD. Pumps 400 CDs/Sy. pumps 300 AHUs 1500 AHU / Sy. Pump / C.Tr / Heater 2000 AHU / Heaters 1600 AHU etc 2500 Miscellaneous items 1000 Miscellaneous items

3.7.7

3

16 gauge and each wire to be of minimum 3 strands and 5 Amps current capacity the work to include hooking up three sets of controls for the a.c. plant room including interlocks between pumps and compressor, etc. in the board (set per each chiller)

3.7.8 A

Supplying and laying earthing work to IE regulation for the above power wiring. terminated. Quantities to be as under: (rmt)

1200 25 mm X 3 mm Copper flats

Page 18 of 27


600 600 1200 3.7.8 B 2

to IS

3.7.9

1

3.7.10

1

3.7.11 etc,. 3.7.12

2

4

3.7.13

4

3.7.14

2000

3.7.15

Nil

3.7.16

600 1200

Page 19 of 27


S.No.

Quantity

600 3.7.17 6000 1500 1800 6000 3.7.18 5

3.7.19

4

3.7.20

4

equal 3f 8 way 16A MCB db complete with 100A incomer isolator for heaters etc.

PRICE 3.7: - Please indicate a L.S works contract price for the above delivered and handed over at site.

3.8 TOILET VENTILATION Each set of toilets

module) will be ventilated by a simple system of exhaust; small capacity centrifugal fans will draw out air thro' ducts and exhaust valves from each enclosure and expel it out of the building thro' small wall cowls approximately 9" x 9" in section and faced with SS mesh - All duct work will be measured as a/c duct

work and paid for at actuals - other special items called for are as below:-

3.8.1

7

3.8.2

7

3.8.3

35

3.8.4a)

35

valves of air master or RaviStar make

Page 20 of 27


3.8.4

Ducting:

commissioning of GI sheet metal ducting of following thickness including necessary supports, adjustable dampers, vanes etc complete as per specifications.

GI sheet metal ducting (Rectangular)

80 3.8.5

35 35 3.8.6 1

3.9

/ 2 nos exhaust fans for copier room ventilation.

The above will be complete with a PC based CPU/colour monitor and a A3 ink jet printer - all controllers for AHU, pumps etc., shall have extra points to the extent to min 50% redundancy for additional inputs at a future date.

For a detailed BOQ for the above see sheets attached, to quote accordingly. IMPORTANT:

1)

3.9 BMS

Page 21 of 27


S.No.

Quantity

3.9.1

1

10/100 MBNIC, Scroll Mouse & Software, Windows XP Professional (build service pack 3), 2 Serial Ports,

1 Parallel port, 2 USB Ports, 17" Colour Monitor with Graphical interface software, Gateway card, A3 size Deskjet colour printer of HP make, real time clock with battery back-up, connecting card, communication card etc.,.

3.9.2

1

software for down loading the data from Micro Processor panel of the aircooled chillers to BAS system to facilitate monitoring of the chiller through BAS system (Bacnet compatable), system software for configuration & communication with DDC controllers

3.9.3

Providing,

microprocessor Controllers for operating and controlling AC plant and AHUs. The controllers shall be as per I/O Summary and schematic. The controller shall be stand - alone type with key pad for operator interface, terminal to plug hand held display unit, housed in sheet metal enclosure of Rittal make. (the controller shall be big enough to accept another 50% of the IO - called for presently)

3.9.3 a)

1

3.9.3b)

2

3.9.3 c) 3.9.3 d) 3.9.3 e)

1 25 8

FCUs)

Page 22 of 27


S.No.

Quantity

3.9.4

1

(Portable) for Display of measured values, set points and parameters, Adjustment of set points and parameters, setting the time and data. The operator Terminal shall be suitable for plugging to any required controller. The operator Terminal shall be complete

3.9.5

8

3.9.6

127

3.9.7a)

1

3.9.7b)

1

3.9.7c)

1

3.9.8

Nil

3.9.9

27 11

19 32 3.9.10a) Nil

(one each in each AHU room)

Page 23 of 27


3.9.10b)

Nil (motor)

3.9.11

76

3.9.12

Nil fan

3.9.13

Nil

3.9.14

Nil

main line - set 3.9.15 AHU. 3.9.16 25

etc., 3.9.16a) 1500

3.9.16b)

1500

3.9.16 c)

600

RH sensors) 3.9.16d)

cable 600

3.9.16e)

600

3.9.16f)

3.9.16g)

sheated Mylar taped signal cable

Page 24 of 27


S.No.

Quantity

3.9.16 h)

3.9.16 i)

3.9.16 j)

3.9.17

1500 a) 1500 b)

1)

fans, are not reflected fully in the above but controls for these are part of the L.S price given below. Price 3.9: -

Please indicate a L.S. works contract price for the above work including for the IO listing, shown for chillers / AHUs / pumps toilet exhaust fans. DDC controllers suitable Bacnet software and all related panels etc., required to complete the sequence of auto operation of the system. (Actual payment for cabling work above will be at the unit rates set out in the quote). 3.10 ETC., ETC. 3.10.1

of lining the walls

fibreglass

between it and the wall - the work will be carried out to spec sheet 29006 attached for the purpose of the BOQ. The areas in sq.m. to be lined may be taken as under.

800 Walls 400 Ceiling

Page 25 of 27

Pacakge -I Part-IV AC Works IMGEOS and NDEM S.No. Quantity Item Description

PRICE 3.10: - Please indicate a total works contract price for the above completely, designed delivered, installed, commissioned and handed over at site. 3.11 FLUSHING 1 Flushing of a/c space prior to full occupancy.

To dilute building material polution the AHUs will be run for two weeks before occupation - Power for the run will be provided by the owners - the a/c contractor shall operate these on all outside air - as if fully

opertioned - each AHU will have only MERV 8 filters in place during flushing - these will be discarded at the end of the flushing operation and a new set of filters introduced along with the MERV basically - the MERV 8 filters are the material cost component of this head of the BOQ. 13

PRICE 3.11: - Please indicate a total works contract price for the above completely, designed delivered, installed, commissioned and handed over at site. 3.12 COPIER ROOM COOLING: -

f

-

They will have a small exhaust fan to exhaust about 50% of the FA intake from the a/c An area of about 100 sq.ft with 5 kw internal load is being ear - marked for this

a/c items desired will be: -

3.12.1

1

spec. 3.12.2 2

wall mounting 50 m3 Hr at 100 mm SP exhaust fan as suitable for toilet exhaust duty - complete with wall ring ductable fitting etc (one for FA intake and one for exhaust)

3.12.3

12

3.12.4

1

3.12.5

1

frames for the above

PRICE 3.12: - Please indicate a total works contract price inclusive of all items and duties for the above handed over at site.

Page 26 of 27


3.13 3.13.1

some minimal reheat for RH control to compensate for lack of internal load at part load conditions. Each set of heaters will be complete on a factory made epoxy painted MS angle iron frame (to be mounted in the AHU) - each set will be powered thro' a 3 / 4 wire 16A contractor. The heaters will be activated by a stand alone thermostate and humidistate will have a

"geyserstat" for fire protection. The heating system for all the AHU will consist of 25 sets as above - each complete with components as below.

3.13.2

Providing, installing and commissioning - electric strip

heater banks on BB insulators and expoxy painted MS angle iron frame connected with copper wires in porclean beads terminating on stud connections in a proper terminal box to capacities as below: -

11 14 Nil 3.13.2 25

3.13.3

25

protective geyserstat power flexibles, trap doors in plenums, glazed inspection ports in the plenums, required to complete the work (sets)

PRICE: 3.13

Please indicate a total works contract price inclusive of all items and

duties for the above handed over at site.

Note: - The thermostate and humidistate (Honeywell) for activating the above may be of the stand alone type not linked to the BMS as desscribed earlier.

Page 27 of 27

es to the specified standards indicated

ntities; etc. mentioned elsewhere.

Item Description

Unit

ONE CENTRIFUGAL WATER COOLED PACKAGE

Providing and installing compressor - centrifugal Eachtype complete to specifications - 250 Tr Providing and installing compressor motor- TEFC Each squirrel cage induction type 1450 rpm / 2900 rpm enclosure to suit compressor requirements 250 hp Providing and installing soft start starters for the above Each Providing, installing and commissioning of shell and Each tube water cooled condensers complete with all standard accessories as called for (250 Tr) Providing and installing shell and tube chillers Each complete with all accessories as specified 250 Tr Providing and installing intercoolers suction liquid heat Lot exchangers etc., etc. Providing, installing and commissioning of refrigerant Lot

Item Description

Unit Rate (In Figure & In Words)

Providing and installing refrigerant flow and Lot temperature controls and all cut outs and associated instrumentation, etc. including a central gauge panel - BMS compatable complete with CVT if required. The control panel shall be complete with main power isolater to meet local codes.

Providing and installing MS base plate for the above Lot -complete with A.V. mounts, with horizontal and vertical limit stops suitable for seismic

Providing and installing miscellaneous items like Lot nosing frames for foundation blocks, charge of gas, oil in the refrigeration and electrical circuits and

Plant room exhaust - GE or equal 24'' exhaust fans Each

nditions marked


Amount

CKAGE WATER

Compressor- R134a screw type specifications - 62.5 Tr Compressor motor- TEFC squirrel cage inductiontype 1450 rpm- enclosure to suit compressor requirements - 75 hp (built into the above) Soft start starters for the above - power panel to be complete with main isolator Air cooled condensers complete with all accessories and fans as specified corrosion resist coating) Shell and tube chillers complete with all accessories as specified - 62.5 Tr Suction liquid heat exchangers Refrigerant piping out of heavy duty hard drawn copper including suction line insulation-chillerinsulation complete with finish - sets Refrigerant flow and temperature controls and all cut -

outs and associated instrumentation, etc. including a weather proof central gauge panel compatible complete with CVT if required MS base plate for the above equipment -complete with nuts, bolts, etc, etc. including PC weld mesh factory fitted panels as protection on air inlet side of the aircooled condenser. Miscellaneousitems like nosing frames for foundation

Item Description


PRICE FOR EACH Chiller (125 Tr) TOTAL PRICE FOR THE TWO SCREW CHILLER (TOTAL 250 Tr only) Chiller manager to operate the 1 x 250 TR water Each

selected model

L.S.

standard

make ETA,Caryaire,Bhoopathi,Citizen,ABB nicotra,Kruger,Comfri,Greenheckfans.

Neoprene

/ etc,(SAIL/TISCO/JINDAL). 24 gauge 22 gauge 20 gauge

coating (Air master, Ravi Star, Caryaire) 2 slot SA slot diffusers

Item Description

3 slot SA slot diffusers 4 slot SA slot diffusers

5 slot SA slot diffusers 6 Slot SA slot diffusers 8 Slot SA slot diffusers 10 Slot SA slot diffusers 2' x 2' SA slot diffusers - Hollow are with dampers SA Grilles RA air outlets of extruded aluminium with coating (Air master Ravi Star, Caryaire) 2 slot RA slot diffusers 3 slot RA slot diffusers 4 slot RA slot diffusers 5 slot RA slot diffusers 6 Slot RA slot diffusers 8 Slot RA slot diffusers 10 Slot RA slot diffusers RA Grilles Acoustical insulation of ducts with fibreglass crown 300 and perforated aluminium facing - 24 gauge thick - sq.m Miscellaneous items like supports, mounts, base plates, etc., nosing frames for AHU foundations where foundations are called for etc., as also painting, etc., etc. Ducting insulation (Thermal) with 25 mm resinbonded 25

Item Description

Unit

Grundfoss, Armstrong close coupled end suction

75 hp primary (1R + 1S) 40 hp primary (2R + 2S) 7.5 hp secondary (1R + 1S) 15 hp secondary (1R + 1S) 40 hp secondary (1R + 1S) 40 hp secondary (1R + 1S)

Each Each Each Each Each Each

FRP coated channel iron bases for the above chilled Each water pumps Grundfoss, Armstrong close coupled end suction pumps and matching squirrel cage - SPDP motors Condenser pumps sets - pump to be complete with mechanical seals 25 hp (1R + 1S) YD starters for the above pumps sets Each Each

FRP coated channel iron bases for the above chilled Each water pumps Providing and installingFRP - Bottle shaped ID cooling tower complete with fan, motor, starter on GI structural and all SS fasteners.( The C/T shall be of Paherpur,Advance,Mihir make) 125 Tr Each

Closed expansion tank with dual pumps 1R + 1S Each to form an expansion detail for minimal loss of water Insulation for the above tank with 50 mm EPS(TF) Set insulation on TW frame and aluminium clading (set) Horizontal - hide away type FCU's with all accessories called for elsewhere - FCUs to be complete and of size as below: 1.0 Tr FCU 2.0 Tr FCU Each Each

3.0 Tr FCU

for elsewhere- including drain pumps.

discharge

fitment Caryaire,Ravistar,Airmaster)

duly

Fresh air intake system

under ring and finger grand etc. a) - 500 m3 / H @ 12mm SP b) - 1000 m3 / H @ 12mm SP c) - 2000 m3 / H @ 12mm SP 24 gauge gi duct as called for

screw mm - 450 type)

space CO2

Room wall

Item Description


The AHUs offered above should cover complete sets of factory made equipment - made available in knocked down condition for easy transport to location. All duct work / pipe supports shall be fastened into the masonary work with good mechanical fasteners fixed with suitable Rods - the contractors scope of work shall include for the minor civil works associated with this work. Fasteners shall be Hilti / Fischer, only. All duct work done at site will have to be out of panels which will not have any joints in them; i.e. no panel smaller than 2400 X 900 (size of a full GI sheet) will be permitted to have any joints

The hide away FCU where called for shall be complete with coil and casing, fan and filter with filte

FCU Size 1 Tr FCU 1 Tr FCU 2 Tr FCU 3 Tr FCU

SA Grill (Sq.m) 0.1 0.15 0.2 0.3 Hydronic cassette type FCUs are complete with casing, fan, coil, fan motor, drain pan, drin pump and FA intake. A face plate with SA / RA grille and auto grille movement must be included. FCUs shall be suitable for remote unit controler (controls are listed and to be quoted under BMS)(FCU

make: Voltas,Blue star,Carrier,Hitachi) Pump duty conditions may be taken as:

TS FOR SELECT

Item Description


PAHU - 15 Tr actual capacity working with chilled Each

Steel stands out of angle iron to keep the PAHU and Each its discharge damper just off the FF GI sheet duct connector from unit to false floor Each Supply air grills with damper each 600 mm x 600Each mm each the full size of a typical false floor tile - of proven and acceptable design and preferably Aluminium die cast (with damper) (each 1000 cfm @ 250 fpm) Return air grilles generally 590 mm x 590 mm to Each be fitted into a standard false ceiling grid 50 * Fire dampers as called for elsewhere to the same size Each constraints etc., on SA and RA grilles of the total system. Fresh air intake with the fire damper, volume control Each damper and SS mesh each 600 x 600 Price 3.4: Please indicate a L.S. works contract price for the above handed over at site. Important The average size of fire damper may be only 0.5 sq.m. in this case hence the no of fire damper motor will be larger - in other words for the above quantity of dampers a total of 24 damper motors need to be provided for. ( Make: Emersion/StulZ/Bluestar/Batliboi) CHILLED WATER PIPING


Amount

ioning of a chilled

density) and

24# gi jackets

(beyond the TATA

and min 8 mm wall

450 mm dia NB pre-insulated pipe with 40 mm PUF insulation 400 mm 350 mm 300 mm 250 mm 200 mm 150 mm 125 mm 100 mm 80 mm 65 mm 50 mm 40 mm 32 mm " " " " " " " " " " " " " " " " " " " " " " " " " "

Item Description

25 mm

"

" 25 mm dia NB but with 20mm PUF insulation - (for drain piping) - gi jacketting etc to be

as above Shut-off Valves

400 mm dia valve with insulation 250 mm dia valve with insulation 200 mm dia valve with insulation 150 mm 125 mm 100 mm 80 mm 65 mm " 50 mm " 40 mm " 32 mm " 25 mm " 20 mm " " " " " " " " " " " " " " "

Item Description Double Plate Check Valves - These shall be of


Advance/Kirloskar with 40/50mm PUF - insulation 100 mm dia double plate check valve Each

150 mm dia double plate check valve 200 mm dia double plate check valve Flow straightener cum strainer

Each Each

(Anergy make) - complete with 40mm PUF insulation - to suit the pump 100 mm dia insulated strainer / straightener 150 mm dia insulated strainer / straightener 200 mm dia insulated strainer / straightener Each Each Each

Manual Measuring/Balancing valves - of Tour &

400 mm dia valve with insulation 250 mm dia valve with insulation 200 mm dia valve with insulation 150 mm 125 mm " " " "

Item Description

100 mm 80 mm 65 mm 50 mm 40 mm 32 mm 25 mm 20 mm

" " " " " " " "

" " " " " " " " Water pressure gauge complete with gauge valve, mounting, fitting and copper tubing extension where

required Thermometers of in glass type in copper separable

well complete with gaurd, etc., mounted on water lines, etc. Differential water pressure switches in the lines just outside the chillers (For condensers / Chillers) Pressure test points (two service gauges with needles are to be free supply) Price 3.5: Please indicate a L.S. works contract price for the above handed over at site.

All pipe supports will have to be on regulation pipe hangers with spring/acceptable isolation in each. Service flanges, descaling tees, special imported manual air vent valves as marketed by anergy drain valves, etc, etc. required to make the circuits fully operational will be included in the contractors price (as given above) (all the above are 12 mm f or less and included in the LS project cost). Prices quoted against each item shall include for its finish painting to code.

Item Description

the owners). CONDENSER WATER PIPING WORK Supplying and laying as also commissioning and handing over a condenser water cooling system comprising of components generally as per item 3.6.1 to 3.6.7 pipe to be GI B class of TATA make / JINDAL / SAIL. (length in m) (beyond the TATA range) may be non TATA make but minimum 8mm wall thickness. 200 mm N.B. diameter pipes (NB) 150 mm 125 mm 100 mm 75 mm 50 mm " " " " " " " " " "

25 mm 20 mm

" "

" " Butterfly valves of Audco Aquaseal make to quantities as below (valves 38 and below may be Audco or equa

ball type) 200 mm N.B. diameter size 150 mm 125 mm " " " "

Item Description

100 mm 75 mm 50 mm 25 mm 20 mm " " " "

"

" " " " " Non - return valves of Advance /Kirloskar make (dual

plate type) 200 mm N.B. diameter 125 mm N.B. diameter size Y type strainers / Staraightener (mesh V=1m/sec) 200 mm N.B. diameter strainer / Staraightener 125 mm N.B. diameter strainer / Staraightener Manual - Tour & Anderson measuring / balancing valve - as called for under chilled water head. 200 mm N.B. diameter strainer 150 mm N.B. diameter valves 125 mm 100 mm 75 mm 50 mm " " " " " " " "

Item Description


Pressure gauges as in 3.5.6 Thermometers as in 3.5.7

Each Each

PRICE 3.6: Please indicate a L.S works contract price for the above delivered and handed over at site. All pipe supports will have to be on regulation pipe hangers with spring/acceptable isolation in each. Service flanges, descaling tees, air vent valves, drain valves, etc, etc. required to make the circuits fully operational will be included in the contractors L.S. cost. Prices quoted against each item shall include for its finish painting to code. Installation basket strainers at the inlet of all equipment like chiller, condensers, coils, etc., etc., shall be put in at installation time and to be removed after trials - These will be the property of the ELECTRICAL WORK Supplying, installing, testing, commissioning and

Supplying, installing, testing, commissioning and handling over - chiller panel as in 3.7.1. above (wiring diagram - 1) for 250 Tr chiller, condenser and pumps etc., as in drawing Supplying, installing, testing, commissioning and handling over - chiller panel as in 3.7.1. above (wiring diagram - 2) for 2 x 125 Tr chiller, and pumps etc., as in drawing Supplying, installing, testing, commissioning and handling over - Central AHU panel as in 3.7.1 above (wiring diagram -3) for AHU sub panels and Sy.

pumps., as in drawing Supplying, installing, testing, commissioning and

Item Description

Supplying, installting, testing, commissioning and handling over - AHU sub panel (wiring diagram -5) for AHUs as in drawing for Block A(same as 3.7.1 above but without energy meter). Supplying, installting, testing, commissioning and handling over - AHU sub panel (wiring diagram -6) for AHUs as in drawing for Block B (same as 3.7.1 above but without energy meter). Supplying, installting, testing, commissioning and handling over - AHU sub panel (wiring diagram -7) for AHUs as in drawing for Block C(same as 3.7.1 above but without energy meter). Supplying, installting, testing, commissioning and handling over - AHU sub panel (wiring diagram -8) for AHUs as in drawing for Block D (same as 3.7.1 above but without energy meter). Supplying, installting, testing, commissioning and handling over - PAHU sub panel (wiring diagram -9) for AHUs as in drawing for Block D PAHUs (same as 3.7.1 above but without energy meter). Supplying and installing TP & N isolators in weather prof. enclosures (Cooling owers, fans, etc.,) 16 A Supplying and installing TP & N isolator for AHU fans, pumps, etc., 16 A 32 A 63 A 125 A

Supplying and installing rotary isolator for Miscellaneous equipment like toilet exhaust fans etc., etc each 16 Amp / single phase Supplying and laying electrical power wiring between control panel and equipment with PVCA insulated and armoured cable to quantities as below:Compressor AHU panel, etc CH pumps/SSB -

Item Description

-

3 C X100 sq.mm 4C X 70 sq.mm 4C X50 sq.mm 4 C X 35 sq.mm 4 C X 25 sq.mm 4 C X 16 sq.mm

-

4 C X 10 sq.mm 4 C X 6 sq.mm - 4 C X 4 sq.mm

-

4 C X 2.5 sq.mm - 4 C X 1.5 sq.mm

Supplying and laying control wiring in metal conduits Sets

k to IE regulation for (Main double earth will be

rmt

Item Description

8 SWG bare copper 10 SWG bare copper 16 SWG bare copper Providing standard pipe earth to earth stations with 2.5m long, 38mm dia GI pipe earth stations confirming : 3043 with latest amendments and as per standard dwg., and including supply of all materials and providing chamber complete as per standard drawing as required. Supplying and laying suitable terminations for the electrical cable works with suitable glands, nuts, etc., as in layout Supplying and laying 2 nos, 50 KVAR, 4 nos 30 KVAR (for compressors) and 2 x 30 KVAR, 8 nos, 15 KVAR,2 nos, 10 KVAR, 2 nos 5 KVAR and 2 nos 3 KVAR (for pumps) power factor improvement capacitors on custom made brackets close to motors (capacitors to be connected across motor terminals)

Same as above but 3 KVAR size for the (BIG) AHU Each

Supplying and laying emergency AHU off stations Each

Supplying and laying multiplying contactors for the above each to be able to switch off all AHU of (a floor) a zone (4 way) Supplying and laying in " dia metal cond\uits for 3 core copper insulated wires for interconnecting controls like geysers thermostats/remote on-off points, emergency off stations etc., etc,. & FCU Supplying and laying geyser/ winding thermostat for AHU motor Supplyingand laying GI perforated cable trays - out of

factory made material complete with supports etc. a) b) 300 wide 600 wide

Item Description

c)

900 wide Supplying and laying Control Cabling for BMS

i)

2 core PVC sheath copper signal cable ii) Communication cable iii) M/S conduit (16#) "f iv) 10 core PVC sheath copper signal cable Supplying, installing and commissioning of GE or equal 1f 8way 16A way MCB db complete with 63A incomer rotary isolator for miscellaneous items like exhaust fans - FCUs etc. Supplying, installing and commissioning of GE or equal 1f 12way 16A MCB db complete with 100A incomer isolator for miscellaneous items like exhaust fans - FCUs etc. Supplying, installing and commissioning of GE or

(combined ladies and gents

Providing, installing and commissioning - centrifugal Each exhauster with single phase external rotor motor (direct coupled) 1700 cfm - " SP for the toilets Providing and installing 24 # gi sheet (90 bend wall Each cowl 9" x 9" in size with SS fly proof mesh on the discharge end Providing and installing - 200 mm diameter exhaust Each valves of air master or RaviStar make Providing and installing - 100 mm diameter exhaust Each

Item Description

-

Supplying, installation, testing and

0.63 mm thick (24 gauge) Providing and installing flexible duct out of Al for connecting the valve into the rectangular duct size as below: a) b) 200 mm (m) 100 mm (m) Providing and installing miscellaneous items like nuts, C clips - etc bolts fasteners etc., to complete the job PRICE 3.8: - Please indicate a total works contract price inclusive of all items and duties for the above handed over at site. BUILDING MANAGEMENT SYSTEM INCLUDING The contractor shall offer a basic Building Management System for the HVAC system

with the minimum capability of: a) b) c) Auto on/off on timers on all equipment by clock/calendar Auto on/ off of pumps/chillers, based on temperature of return water Auto selective switching on/ off of equipment for even wear and tear and to equalize hours of running d) e) Auto temperature control of all AHUs - based on RA temperature and time of day and

Two way motorized valves on chiller by pass line to operate the chiller on need based strategy

f) g)

Controllers for bringing on pumps/chillers, fans based on a need based strategy 38 AHU controls and 51 FCU controls with 2 way Motorized modulating valves of 50mm dia for 15/20 Tr AHUs, 40 mm for 5 / 10 Tr AHUs with sensors for SA / RA / etc, and for FCUs (1/2 Tr) 20 mm / for 3 Tr 25 mm with RA sensors etc..

h)

7 nos exhaust fans for toilet ventilation / 1 no. exhaust fan for plant room ventilation

% redundancy

All the above equipment by way of hardware/software shall confirm to Bacnet recommendations, and be Bacnet compatable.

Item Description

Providing, installing and commissioning of central Computer System comprising minimum Intel core 2 duo 2.4 GHz or greater, 1GB DDR, 1.44MB floppy disk, DVD writer, DVD Drive, V.G.A. Card, 256 MB Graphics card, 160

Providing, installing and commissioning of interface Set

installing

and commissioning of

For 250 Tr water cooled Chiller and cooling tower DDC Controllers (controller for chiller & C.Tr pumps included) For (controller for chiller pumps included) For Sy. Pumps (8 nos) - DDC controllers For AHUs (one controler for one AHU) For FCU/Toilet exfans etc - once controller for 125

Item Description

Unit

Providing and installing operator Terminal or Module Nos

with Key pad, connecting card

/ cable, etc., All

necessary accessories including drive, interface card, etc., to be included in this item. Providing & installing temperature Sensors with mounting accessories of PTC 1000/EQ of required range and accuracy to measure chilled water temperature. Providing and installing Temperature sensors of required range and accurancy to maintain / display the temperature conditions. Sensors shall be duct mounting type (for SA / Room) 51 FCUs. Providing and installing Temperature sensors of required range and accuracy to display / indicate the outside design conditions. Providing and installing RH sensor of required range and accuracy to display / indicate the outside design conditions. Providing and installing CO2 sensor to indicate outside CO2 level Providing and installing Fan discharge damper motor on AHU Providing and installing 2 way motorized control valves for AHUs and FCUs For AHUs 50 mm 40 mm For FCUs 25 mm 20 mm Providing and installing Fresh air damper actuator -38 AHU and RA for

Item Description

Providing and installing AHU outlet damper actuator

Providing and installing DPS filter status (for MERV 8 / MERV 13 filters 38 AHUs, 2 per AHU) Providing and installing DPS For VSD control of AHU

Providing and installing 150 mm motorized by pass valve (water quantity equal to one chillers) - Two way Providing and installing Flow meter (for full return

water flow) and one differential pressure sensor to record flow and pressure differential in the return water

Providing and installing CO2 sensor one each for each

Providing and installing Cables suitable for DDC system, complete with termination, junction boxes

Providing and installing 10core 1 sqmm unarmoured ATC conductor multistranded twisted, overall PVC sheated mylar taped signal cable (for actuators) Providing and installing 3 core 1 sqmm unarmoured ATC conductor multistranded twisted, overall PVC sheated mylar taped signal cable (for actuators) Providing and installing 2 core1 sqmm unarmoured ATC conductor multistranded twisted, overall PVC sheated mylar taped signal cable (for temperature /

Providing and installing 2 core 1 sqmm unarmoured ATC conductor multistranded twisted, overall PVC

(for On/OFF, status to MC)

Providing and installing sheilded cable for Bus

1.0

R.O Providing and installing 4 core 1 sqmm armoured ATC conductor multi sheated Mylar taped signal cable R.O Providing and installing 2 core 1 sqmm armoured ATC

conductor multi

Item Description


R.O Providing and installing Excavation & Refilling (Soft RMT Soil) for laying armoured cables R.O Providing and installing Excavation & Refilling (Medium RMT Soil) for laying armoured cables R.O Providing and installing Excavation & Refilling (Hard RMT Soil) for laying armoured cables Providing and installingSupply and providing 16 gauge MS conduits complete with all fitting and accessories. 19 mm dia 25 mm dia RMT RMT

PRICE 3.9: - Please indicate a total works contract price inclusive of all items and duties for the above handed over at site. 7 nos toilet exhaust fans 1 nos plant room exhaust fans and 2 nos copier room exhaust

ACCOUSTICAL LINING WORK FOR AHU ROOMS,

Providing, installing A/c Plant Room Lining All AHU rooms and critical areas around the roof top plant will need lining -the work will essential comprise / and roof of the rooms with

(crown

150) after creating an air gap

sq.m. sq.m.


Amount

otal works contract price for the above completely,

mmissioned and handed over at site.

L.S.

grade ones

Areas like the copier rooms etc where there is a risk of higher pollution, will be segregated from / f

Chilled water (Hydronic type) cassette type a/c unit of Each 2 Tr capacity complete as called for earlier in the

EBM Nadi / Krugger / Cata make - propeller type Each -

PVC heavy duty 6'' pipe with bends and fitting to be rmt used as exhaust duct for the above fan SS mesh / cowl on 6'' PVS elbow of the above pipe Each for insect / vermin protection. Miscellenous items like supports mounts and fixing L.S.

Item Description

Unit

HUMIDITY CONTROL For all areas cooled by AHUs - it is desirable to add

ioning - electric strip

3 x 1 kw bank 3 x 2 kw bank 3 x 3 kw bank

Each Each Each

Providing and installing - Seimens / LT / LK Power Each contactors (32A - 4 wire - 415V - 3 - 50 Hertz) each complete with a thermostate and a humidistate. Providing and installing - Miscellaneous items like Each

Rate (In Figure & In Words)

Amount

Amount

- complete to

Each

l cage inductiontype

Each

ressor requirements

power panel to be

Each

with all accessories 62.5 TR (fins to have

Each

with all accessories

Each

Each duty hard drawn Each

ation-chillerinsulation

controls and all cut

Each

on, etc. including a (set) - BMS

pment -complete

Each

ng PC weld mesh

on air inlet side of

ames for foundation

L.S.

Amount

i.e

Blue

star, with

Sheet metal duct work of GI complete with Sponge Rubber gaskets etc.,

SA air outlets of extruded aluminium with powder

Unit


Amount

r.m.t r.m.t

r.m.t r.m.t r.m.t r.m.t Each

sq.m powder

r.m.t r.m.t r.m.t r.m.t r.m.t r.m.t r.m.t sq.m mm thick sq.m

L.S

sq.m


Amount

Item Description

Unit

Rate (In Figure &

In Words) Each 1 Tr CHW Hydronic cassete 2 Tr CHW Hydronic Cassette 3 Tr CHW Hydronic Cassette The FCUs include all standard accessories as called Each Each Each

Duct dampers for putting into the SA duct branches dampers to be sturdy 18# min and suitable for fan duty (sq.m).

sq.m

(make

1 hour Fire dampers for SA and RA ducts - (UL Rated) sq.m - These shall be of the specified make UL Caryaire,Ravistar,Airmaster,George Rao& Co.) certified.(make

sq.m

Papst / Nadi - VSD driven propeller fans of size as @ '' SP fans to be complete with mounting

Each Each Each Each Factory made - 22# gi fan cowl at fan intake with bird / SS mesh etc., etc. ( comit to be 300 x 300 Each

BMS compatable CO2 sensor for control of the above FA fan to permit demand ventilation usage based on

-

Single leaf type - 1 hour fire damper - feasible link operated with 300 x 300 mm face area - to fit in AHU

Each

Price 3.3: Please indicate a L.S. works contract price for the above handed over at site. The fire dampers may be assumed to be on an average 1sqm in size with each such sqm, damper operately by an independent motor - damper, will need UL certification and the actuator shall be BMS compatible - though actuated by signals from the fire panels - thro' the BMS - the damper motor shall be operatable - on and off by commands from the BMS. This item has been set out in the BOQ for BMS items later as well - the price for this must be

Amount

made available

d filter with filte

RA Grill (Sq.m) 0.15 0.25 0.3 0.4

complete with casing, fan, coil, fan motor, drain pan, drin pump

SA / RA grille and auto grille movement must be included. FCUs

ontroler (controls are listed and to be quoted under BMS)(FCU

Amount

rmt

rmt rmt rmt rmt rmt rmt rmt rmt rmt rmt rmt rmt rmt

Unit


Amount

rmt rmt

Each Each Each Each Each Each Each Each Each Each Each Each Each

Amount

Each Each Each Each Each

Unit


Amount

Each Each Each Each Each Each Each Each Each

g extension where

Each

mounted on water

Each

Each

works contract price for the above handed over at site.

n regulation pipe hangers with spring/acceptable isolation

pecial imported manual air vent valves as marketed by

ired to make the circuits fully operational will be included

above) (all the above are 12 mm f or less and included in

shall include for its finish painting to code.


Amount

Installation basket strainers at the inlet of all equipment like chiller, condensers, coils, etc., etc., shall be put in by the contractor as part of his project cost - He will remove these after the regulation trial runs. He may take these away as these are his property (not paid for by

ommissioning and

er cooling system

ally as per item 3.6.1

ATA make / JINDAL - pipes of larger diameter non TATA make but

Rmt Rmt Rmt Rmt Rmt Rmt

Rmt Rmt

al make to quantities

ay be Audco or equa

Each Each Each

Unit Rate (In Figure & In Words) Each Each Each Each Each

Amount

irloskar make (dual

Each Each

Each Each

ring / balancing

Each Each Each Each Each Each

Amount

property of the

Each

3.7.1. above (wiring

ndenser and pumps

Each

3.7.1. above (wiring and pumps etc., as

Each

l as in 3.7.1 above

Each

Unit


Amount

ommissioning and

Each

iring diagram -5) for

ame as 3.7.1 above

ommissioning and

Each


ame as 3.7.1 above

ommissioning and

Each


ame as 3.7.1 above

ommissioning and

Each


same as 3.7.1 above

ommissioning and

Each

wiring diagram -9)

D PAHUs (same as

olators in weather

Each olator for AHU fans,

Each Each Each Each

Each

et exhaust fans etc.,

wer wiring between

PVCA insulated and

3 C X 300 sq.mm 3 C X 180 sq.mm 3 C X 120 sq.mm

rmt rmt rmt

Unit Rate (In Figure & In Words) rmt rmt rmt rmt rmt rmt rmt

Amount

rmt rmt rmt rmt

Unit


Amount

rmt rmt rmt Each

h stations confirming

ply of all materials as per standard

Lot

e glands, nuts, etc.,

Lot

VAR and 2 nos 3

ets close to motors

s motor terminals)

Each

ff all AHU of (a floor)

rmt interconnecting

remote on-off points,

Each

d cable trays - out of

ith supports etc. rmt rmt

Unit


Amount

rmt

rmt rmt rmt rmt Each

omplete with 63A

aneous items like

Each

mplete with 100A

s items like exhaust

Each


Amount

Sq.m.

uct out of Al for

angular duct size as

Rmt Rmt L.S.

o complete the job

al works contract price inclusive of all items and

TEM INCLUDING

Building Management System for the HVAC system

uipment by clock/calendar of equipment for even wear and tear and to equalize

based on temperature of return water

all AHUs - based on RA temperature and time of day and

ler by pass line to operate the chiller on need based

/chillers, fans based on a need based strategy

trols with 2 way Motorized modulating valves of

mm for 5 / 10 Tr AHUs with sensors for SA / RA /

m / for 3 Tr 25 mm with RA sensors etc..

ation / 1 no. exhaust fan for plant room ventilation

Unit Rate (In Figure & In Words) Set

Amount

ssioning of central

nimum Intel core 2

R, 1.44MB floppy

A. Card, 256 MB GB HDD, Network Interface

nd cooling tower -

Each

ller & C.Tr pumps

Tr Air cooled chiller DDC Controllers

Each

Nos Each 10 Each


Amount

Nos

Nos.

Nos.

No.

Nos.

Nos.

Nos. Nos.

Nos. Nos. Nos.

Unit


Amount

Nos.

Nos.

Nos.

No.

Set

Nos.

RMT

RMT

RMT

RMT

sqmm twisted pair

RMT

ore 1 sqmm armoured ATC - stranded twisted, overall PVC

RMT

ore 1 sqmm armoured ATC

RMT

- stranded twisted, overall PVC

Amount

ant room exhaust fans and 2 nos copier room exhaust

here there is a risk of higher pollution, will be segregated from


Amount

sq.m sq.m sq.m

r.m.t

Amount

n and the actuator

ro' the BMS - the

or this must be

Package - I Part IV AC WORKS

Documents

1r 1s

matching squirrel

min 100f td

factory printed

auto grille

plant room

installation

laying armoured