MinorElectrical and air conditioning work for addition, alteration and modification in existing rooms for DGs at Police Head Quarters Jaipur

Amount

Supply, Installation,Testing and commissioning double and skin modular construction ,draw through ceiling suspended /Floor Mounted air handling units, each complete with DIDW centrifugal fan forward curved blower, squirrel cage, TEFC induction motor.chilled water made of 25mm thick panels consisting of pre plasticized casing of thickness 0.8mm outside layer and 0.8 mm inside layer polyurethane foam (PUF) insulation factory injected between them injection moulding machine, complete with blower section with suitable for static pressure 40mm & as required, minimum 2 bend eliminators, cooling coil section with aluminium finned copper (tubes thickness not less than 0.5mm) cooling coil of 6 row deep, section with 50mm thick metal viscous/ washable synthetic type prefilters, belt drive package with TEFC drive motor of efficiency IE3 suitable for 415 + 10% volts, 50Hz, 3 Phase AC supply designed for varialbe frequency drive applications, drain stainless steel (18G) drain pan with PUF insulation, 150 mm dia. type pressure gauges (2 nos.)and industrial type thermometers nos.) at the inlet and outlet of coil, auto purge valve wherever necessary vibration isolation arrangement etc. complete as specification and of following capacities. Make Zeco/Revo/Carrier

Supplying, laying/ fixing, testing and commissioning of following nominal sizes of chilled water piping inside the building (with necessary clamps, vibration isolators and fittings but excluding valves, strainers, gauges etc.) duly insulated with following closed cell elastometric nitrile rubber of minimum 45 Kg / cu m density, thermal conductivity 0.037 W/MK or better at 20 deg mean temperature class 'O'insulation applied by suitable adhesive complete including repairing of damage to building etc. as per specifications and as required complete in all respect.Note: The Pipes of sizes 150mm & below shall be M.S. 'C' class as per IS : 1239 and pipes size above 150mm shall be welded black steel pipe heavy class as per IS: 3589, from minimum 6.35mm thick M.S. Sheet for pipes upto 350 mm dia. and from minimum 7mm thick MS sheet for pipes of 400 mm dia and above.

50mm dia(32 mm thick insulation)

40mm dia. (32 mm thick insulation)

32 mm dia(19 mm thick insulation)

INSULATED VALVES

AHU Starter

Supply, Installation, Testing & Commissioning of electrical panel of required ratings for AHU with incomer MCB, DOL starter with contactor & overload relay, single phase preventer, self illuminated on/off push button, ammeter, as per BMS compatible sheet steel encloser as required for different AHU motors rating from 2.0 HP to 5.0 HP. Complete as per pre approved by Engineer in charge. For additional technical parameters of products/works refer Annexure "A" attached with P.W.D. Electrical BSR

PICV Motorized Valves

Providing and fixing of PICV motorized valves suitable for Chilled water application complete with Electrical/Electronic actuator and required accessories for proper operation and control of valves of following sizes.

Make : Danfoss/ Honeywell/ Siemens

16.9 to 24 USGPM

Propotionate Thermostats

Providing and fixing of proportionate thermostats for various Air Handling Units to control PICV valve as per specifications.

Proportional Thermostats for Air Handling Units

Make : Danfoss/ Honeywell/ Siemens

24 Volt Transformer

Providing and fixing of 24 volt step down transformers 2/4 amp. Rating for controling the modulating motor complete with CRC sheet encloser and 6 amp. MCB as required.

Chilled Water Piping

Providing and fixing in position the following M.S. 'C' class pipes cut to required lengths and installed with all welded joints as specified, providing and fixing in position the necessary fittings like elbows, tees and reducers As under

Makes: Jindal Star/ Jindal Hisar/ TATA

40 MM (19mm Nitrile Sleeve/Sheet + 200 micron Vapour Barrier + 6mm thick self adhasive Nitrile Sheet with 2 coats of UV coatings )

50 MM (19mm +13 mm Nitrile Sleeve/Sheet + 200 micron Vapour Barrier + 6mm thick self adhasive Nitrile Sheet with 2 coats of UV coatings )

Providing and fixing in position the following Butterfly Valves/Ball valves PN 16 having Cast Iron Body, SG Iron Disc with required duly welded flanges, nut bolts & insulation.

(Makes: Advance/ Keystone/ Castle/ Honey well/ Sant/ leader/ Zoloto/Kartar/NVR)

Providing and fixing in position the following Y-strainers PN 16 Brass Body upto 40mm.

(Makes: Aarko/ Sant/ LP/ DS / Castle/ Honeywell/ Leader/ Zoloto/Kartar/NVR)

Auto Air Vent

Providing and fixing of Auto Air Vent Valves complete with socket, ball valve and nipple welding as required.

(Make: Sant/ RC/ LP/ RB / Honeywell/Castle/Zoloto/Kartar/NVR)

Ball Valves

Providing & fixing in position the drain valves, M.S socket , M.S nipples, Dead plug as required for ceiling suspended A.H.U. coil drain complete with connection to A.H.U. condensed drain line as per the followings-

Make : Zolato/ Sant/ Leader/ Honeywell/Kartar/NVR

15 mm dia

Flexible Connection (Canvas)

P & F of Fire retardent , non porous double layer Canvas of required size with GI frame ,Gasket Nut Bolts in existing air cooling Plants complete with making connections etc as required.

For 3000 CFM Capacity Air Handling Unit Drain Piping

S & F of rigid UPVC (25mm) drain piping of 6 kg/ cm2 with 6mm thick nitrile rubber insulation.G. I. Damper

Supply , installation and testing of 20 Gauge G I Damper with brass bushes and 6" pitch multiblade box type galvanised sheet steel construction volume control damper for Ducting and air washers to be provided with suitable links and quadrants for control of volume of air as per specifications complete as required.

GI Ducting

SITC of ducting made from GSS(120 GSM) of class VIII & fabricated as per IS:655 and as per approved drawings & designs including the cost of hangers, supports , angle , expansion fasteners , closed cell neoprene gasket T&P etc. as required of following gauge:

Duct Insulation

Supply & fixing of external thermal closed cell nitrile rubber insulation sheet on duct including cost of adhesive complete as per specification and as required.

13 mm thick (Indoor Application)

Acoustic Lining

Supply and fixing of 10 mm thick Acoustic lining inside the ducts complete with 1 layer of 10 mm thick acosound sheet with adhesive as required.

Diffusers

Supply and fixing of 2 way / 3 way Supply air diffusers of extruded aluminum with dampers, powder coated as specified and complete with Flush, 20mm flanges with PVC gasket, removable core type, square, rectangular as required.

Supply and fixing of 2 way / 3 way Supply air diffusers of extruded aluminum without dampers, powder coated as specified and complete with Flush, 20mm flanges with PVC gasket, removable core type, square, rectangular as required.

Lowering Down And Removing the water in the pre installed Chiller water Header piping and opening the exsiting fitted Dually Cladded Insulation, Cunning making the hole for 2" Dia M.S. pipe for welding the tapping of supply and return Chilled water pipe (For New DG Chambers) & Refitting, Fixing the existing recoverd insulation cladding etc. as required & as directed by engineer in Charge.