SITC of AHU

Amount

Dismantling of existing defective AHUs of different Capacity/ CFM along with all accessories, opening of the main supply air duct, chilled water line connection, electrical installations etc. as required. Shifting the dismantled AHU material from different floors to dumping area decided by Engineer-In-Charge.

SITC of Horizontal floor mounted AHU with VFD, frame made up of Hollow extruded Aluminum profile, chilled water double skin type made of 25 mm thick PUF injected (40 kg/m3 density) panels consisting of G.I. casing of thickness 0.8 mm outside (pre-coated) and 0.8 mm inside layer complete with fan section with (2 no. plug fans) twin plug fans at frequency not more than 50 HZ with TEFC high efficiency IE2 motor, suitable for static pressure as detailed below, cooling coil section with aluminum finned copper tubes (tube thickness not less than 0.5 mm and dia not less than 1/2”) 6 row cooling coil with SS 304 casing, 12 FPI, filter sections with 50mm thick metal viscous/ washable synthetic type air pre-filters (90% down to 10 Micron), plug fan shall be suitable for 415 + 10% volts, 50Hz, 3 phase, A.C Supply, SS 304 drain pan duly insulated, VI Pad, access doors for Fan, Coil & Filter section arrangement, PVC U-trap , maximum height of AHU will be upto 1750 mm from floor level including all accessories complete in all respect as per specifications and instructions of Engineer-in-charge, of following capacities. AHU - SystemAire, Flakt Group , Edgetech, Zeco Aircon, Carrier Aircon, VFD make : Danfoss/Siemens, FILTERS- Thermadyne, AAF, Sagicofim Plug, FAN- Kruger, Flaktwood ,Nicotra, MOTOR-ABB , Bharat Bijli, Crompton 25000 CFM/ 55 mm static pressure Note : - Rates are inclusive of liftinng , shifting of units up to 3th floor AHU room by manual means.

SITC of Horizontal floor mounted AHU, frame made up of Hollow extruded Aluminum profile, chilled water double skin type made of 25 mm thick PUF injected (40 kg/mm3 density) panels consisting of G.I. casing of thickness 0.8 mm outside (pre-coated) and 0.8 mm inside layer, complete with blower section (DIDW Centrifugal backward curved fan) suitable for static pressure as detailed below, minimum 2 bend GSS/ PVC eliminators, cooling coil section with aluminum finned copper tubes (tube thickness not less than 0.5 mm and dia not less than 1/2”) 6 row cooling coil with SS 304 casing, 12 FPI, filter sections with 50mm thick metal viscous/ washable synthetic type air pre-filters (90% down to 10 Micron), TEFC belt driven motor IE2 suitable for 415 + 10% volts, 50Hz, 3 phase, A.C Supply, SS 304 drain pan duly insulated, VI Pad, access doors for Fan, Coil & Filter section arrangement, Complete as per specifications and instructions of Engineer-in-charge, of following capacities. MAKES: AHU - SystemAire, Flakt Group , Edgetech, Zeco Aircon, Carrier Aircon FILTERS- Thermadyne, AAF, Sagicofim FAN- Kruger ,Nicotra MOTOR-ABB , Bharat Bijli, Crompton, 17000 CFM/ 55 mm static pressure, Note : - Rates are inclusive of liftinng , shifting of units up to 3th floor AHU room by manual means.

SITC of MS C Class pipes of required lengths with all welded joints providing and fixing in position with necessary fittings like clamps, vibration isolaters, bends, elbows, tees, reducer, mating flanges & sockets etc. complete with nitrile insulation of 19 MM thickness with suitable adhesive and finaly wraping with 26 G Aluminium cladding on following nominal sizes of chilled plumbing pipes. Make : Tata/Jindal/Sail

100 mm dia MS pipes

80 mm dia M.S. pipes

Supplying, fixing, testing and commissioning of following valves, strainers, gauges in the chilled water plumbing duly insulated to the same specifications as the connected piping and adequately supported as per specifications. BUTTERFLY VALVE (MANUAL) with C I body SS Disc, Nitrile Rubber Seal & O- Ring PN 16 pressure rating for chilled water/hot eater circulation as specified .( L&T /ADVANCE/ AUDCO)

Providing and fixing in position the industrial type pressure gauges with gun metal/brass valves (Make : H.GURU/FRISBEE)

Providing and fixing in position the mercury-in-glass industrial type Thermometers. (Make : H.GURU/FRISBEE)

Supplying, fixing, testing and commissioning of following valves, gauges and strainers for condenser water circulation as per specifications. Supply, Installation, Testing and Commissioning of following sizes electronic, self-balancing, pressure independent type dynamic balancing valve with integrated 3 way modualating control valve in a single body. The actuator shall be capable of accepting upto 10V DC and upto 20mA electric signal and shall provide similar transduced feedback output to control system. Maximum close off pressure shall not be less than 6 Bar for upto 50 mm valves and 7 Bar for 65 mm & above. Valves should have pressure rating of 25 Bar minimum. ( HONEYWELL/SIEMENS MAKE ) - 100 mm dia

Supply, installation, balancing and commissioning of fabricated at site GSS sheet metal rectangular/round ducting complete with neoprene rubber gaskets, elbows, splitter dampers, vanes,hangers, supports etc. as per approved drawings and specifications of following sheet thickness complete as required. Thickness 0.63 mm sheet

SITC of GI volume control damper complete with neoprene rubber gasket, nuts, bolts, screws linkages, flanges etc. as per standard specifications. Size of GI (18 gauge ) damper shall be matching with opening of existing duct .

Supplying, Fixing,testing and commissioning of fire dampers in supply air duct/main branch and return air path as and where required of required sizes i/c control wiring,the damper shall be motorized and spring return so as to close the damper in the event of power failure automatically and open the same in case of power being restored. The spring return action shall be inbuilt mechanism and not externally mounted. The damper shall also be closed in the event of fire signal complete as required and as per specifications.

Fire damper

Actuator

Supplying and fixing of following thickness duly laminated aluminum foil of mat finish closed cell Nitrile rubber (Class "O") insulation on existing duct after applying suitable adhesive for Nitrile rubber. The joints shall be sealed with 50 mm wide and 3 mm thick self adhesive nitrile rubber tape insulation complete as per specifications and as required. - 19 mm

Demolishing brick work manually/ by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of Engineer-in-charge. In cement mortar

Disposal of building rubbish / malba / similar unserviceable, dismantled or waste materials by mechanical means, including loading, transporting, unloading to approved municipal dumping ground or as approved by Engineer-in-charge, beyond 50 m initial lead, for all leads including all lifts involved.

Providing and fixing ball valve (brass) of approved quality, High or low pressure, with plastic floats complete :Leader / Sant/ Zoloto ISI mark 20 mm nominal bore

Providing and fixing in position the following insulated GI class ‘B’ pipes cut to required lengths and installed with all screwed joints, and providing and fixing in position the necessary elbows, tees and reducers as per specifications. (Make : Tata/Jindal - Hissar/Sail/Jindal) - 500 mm dia

Modification of existing starters w.r.t. to required contactors, MCBs, internal wiring of electrical panel suitable for making the new AHUs in fully running condition as required

Supplying and drawing following sizes of FRLS PVC insulated cable in the existing surface/recessed steel/ PVC conduit as required.

3 Core , 25 SQMM copper cable , Armoured

3 Core , 1.5 SQMM copper cable , Unarmoured

SITC of canvas for connection of AHUs and ducts

Credit for old existing dismantled AHU's of different capacity (received against above Item No.1)

SNOWMEX ENGINEERS LIMITED

Ace Cooling Solutions