SPECIAL REPAIR/REPLACEMENT TO CERTAIN BER AC PLANTS AND ASSOCIATED WORKS AT AIR FORCE STATION ADAMPUR

Amount

Designing and installing, commissioning & testing Micro processor controlled Central Air Conditioning water cooled Scroll Water Chilling System with twin compressor associated equipment for bldg No 9 and bldg No 6 having size 18mx11x4.5m, consisting of 3 units not less than 10 TR each, 3 x 10 TR = 30 TR out of which 2 x 10 TR will be working simultaneously and 1x10 TR = 10 TR as stand-by to maintain inside desire temperature 22ºC ± 2ºC through out the year with humidity control to maintain relative humidity 50 ± 5% and suitable dust filtration up to 15 micron at suction and using R407 ºC/ R 410 A environment friendly CFC/HCFC free refrigerant with the following accessories :- Make: Blue Star/Carrier/ Hitachi

SCROLL COMPRESSOR :- Micro processor based automatic controlled with Hermatically sealed scroll type compressor duly coupled with refrigerant cooled SPDP induction motor to run on 3 Phase, 50 Hz as per manufacturer's requirement not less than 3 x 10 TR capacity, driven by 415 ± 10 Volts Power supply complete with suction and discharge piping, auto restart after power failure, built in time delay relay, inbuilt thermal protection, standard accessories to meet the atomatic step capacity control of 100% full load of heat load / design condition as specified in particular specification including first charge of compressor oilI etc complete all as specified and directed. Make : Danfoss/Copeland/Manurope. CONDENSER :- Shell and tube type water cooled condenser of suitable capacity to meet the requirement of 3x 10 TR AC Plant with MS shell and integrally finned copper tubing pre coated, with resistance to both chemical and sailine corrosion, complete with safety valves, drain valve, water inlet and outlet valves, hot gas inlet and liquid outlet isolating valves thermometer and pressure gauges at inlet and outlet and purge valves all as specified and as per manufacturer requirement complete all as specified and directed CHILLER :- Shell and tube type, water cooled direct expansion chiller units of suitable capacity to meet the requirement of 3x 10 TR AC Plant having plain copper tubes all as specified and as per manufacturer's design complete all as specified and dircted. The design/drawing of central AC plant shall be approved from OEM and the plant shall be installed as recommended by OEM.

MICRO PROCESSOR BASED CONTROL PANEL :- (i)- Micro processor based control comprising for following features :- (a) Automatic capacity control reducing energy consumption. (b) Micro processor based sequence of starting/stopping of equipment with fixed time delays. (c) Alarm history giving cause of tripping. (e) LP/HP cut out. (ii) Fail safe features comprises the following:- (a) Under voltage protection. (b) Single phase protection (c) Over load protection. (d) Phase inbalance protection. (e) Anti freeze protection (f) Power loss trip and shut down. (iii) Set of water flow switches in condenser and chiller water line at inlet and outlet. (iv) First charge of refrigerant gas and compressor oil as per manufacturer's recommendation.

CHILLER WATER COOLING ARRANGEMENT :- Chilled water cooling arrangement comprising of the following :- (i) Supply and fixing MS 'C' class heavy duty ERW Chilled water piping for recirculation of chilled water complete with, balancing valve for chiller inlet, out let connection and circulating the chilled water from AHU to pump, pump to chiller inlet, chiller outlet to AHU. Water pressure gauge/thermometer in chiller inlet and outlet, AHU inlet. and AHU outlet connection complete with insulation of 19mm thick polyvinyl nitrite rubber insulation finished with 26 gauge Aluminum cladding complete with accessories comprising of control, valves like butterfly valves, balancing valves, Y-strainers, non return valves, pressure gauges, thermometer, water flow switches etc.

Supplying, installing, commissioning & testing MONOBLOCK TYPE CHILLED WATER PUMP SET WITH BRONZE IMPELLER, MECHANICAL SEAL OF 4.4 LPS 20-22 M HEAD . MAKE:- KIRLOSKAR/ BEACON/ JYOTI

Supplying, fixing and testing MS 'C' class pipe of size 65 mm, complete all as specified.

Supplying, fixing and testing MS 'C' class pipe of size 40 mm, complete all as specified.

Supplying, fixing and testing butterfly valves 65 mm size (Manual) with CI body, SS disc, nitrile rubber seal & O ring, PN 1.6 Pressure rating complete all as specified. Make:- Deepak/ Castle/ advance.

Supplying, fixing and testing Butterfly Valves 40 mm size (Manual) with CI body, SS disc, nitrile rubber seal & O ring, PN 1.6 Pressure rating. Make:- Deepak/ Castle/ advance.

Supplying, fixing and testing Non return valve of size 65mm with dual plate of CI body, Stainless steel plates, vulcanised NBR seal, flanged ends and PN 1.6 Pressure rating for chilled water circulation complete all as specified. Make:- Deepak/ Castle/ advance

Supplying, fixing and testing Y type Strainer (40 mesh) of size 65mm ductile Iron body flanged ends with stainless steel strainer complete all as specified. Make Emerald, Rapid control/ deepak

Supplying, fixing and testing 3 Way Mixing Valve: Supplying, Installing, testing & commissioning 3 Way modulating proportional linear type motorised mixing valve of size 65mm size, having manual over ride facility with proportional thermostat and wiring with 1.5 sq mm copper conductor multi core complete all as specified. Make:- Honeywell/ Seimens.

Supplying, fixing and testing Balancing valve of size 40mm of PN 1.6 complete all as specified. Make:- Deepak/ Castle

PRESSURE GAUGE & PLUG Supplying, installation and testing of Pressure Gauges complete with fittings , cock valve, syphon and pressure gauge etc. complete as reqd 100 mm dial for chilled water pipe complete all as specified. Make:- Feibig, H Guru.

TEMPERATURE GAUGE Supply, installation and testing of Thermometer gauge with thermowell complete with fitting etc. as reqd complete all as specified. Make:- Feibig, H Guru.

Supply, installation and testing of auto air vent valve with ball valve size 15 mm dia complete all as specified.

Supply, installation and testing of water flow switch size 25 mm dia complete all as specified. Make:- Honetwell/ Rapid cool

Supply & installation of UPVC CONDENSATE Drain water piping of 32 mm dia pipe complete all as specified.

Supply, installation & testing of ball Valves complete with fiitting like nipples, elbows, tees, bends, sockets etc.(aa) 25 mm dia size for water drain Chiller, complete all as specified.

Supply, installation, testing and commissioning of PVC Expansion water tank for chilled water make up water 500 ltrs. The Tank shall be duly insulated with 19 mm thick nitrile sheet finally covered with 26 G AL sheet complete all as specified.

CONDENSER SECTION

Design, supply, laying, fixing, testing and commissioning of condenser 50 mm size water piping with MS heavy class as per IS-1239, pipe complete with all accessories such as bends, elbows, flanges, nut-bolts, clamps, vibration isolators complete all as specified. Make :- Jindal/ TATA/ Parkash Surya

Design, supply, laying, fixing, testing and commissioning of condenser 65 mm size water piping with MS heavy class as per IS-1239, pipe complete with all accessories such as bends, elbows, flanges, nut-bolts, clamps, vibration isolators complete all as specified. Make :- Jindal/ TATA/ Parkash Surya

Supplying, fixing and testing FRP cooling tower induced draft type with motor, plant of heat rejection capacity 30 Tonnage with FRP Panel as made out with FRP type water basin, PVC filling with integral louvers and drift eliminator, fitted through high density polyethene (HDP) nozzels of having self rotating type sprinklers, statically and dynamically balanced axial flow type fan direct driven with TEFC squirrel cage induction motor, suction screen, make up quick fill arrangement, overflow and drain connections with necessary valves and suitable inspection ladder, access arrangement for cooling tower interior, cement concrete platform including necessary foundation, steel supporting structure, anti-vibration mountings etc complete all as specified. MAKE:- DELTA/ ADVANCE/ MIHIR.

Supply, Fixing, testing and commissioning in position 50 mm size valves, strainers and gauges Butter Fly Valves (Manual) with CI body, SS disc, nitrile rubber seal & O ring, PN 1.6 (16 bar) Pressure rating complete all as specified. Make:- Deepak/ Castle/ Advance

Supply, Fixing, testing and commissioning in position 65mm size valves, strainers and gauges Butter Fly Valves (Manual) with CI body, SS disc, nitrile rubber seal & O ring, PN 1.6 (16 bar) Pressure rating complete all as specified Make:- Deepak/ Castle/ Advance

Supplying, fixing and testing Non return valve of size 65 mm with dual plate of CI body, plates, vulcanised NBR seal flanged ends and PN 10(10 bar) Pressure rating for water circulation complete all as specified. Make:- Deepak/ Castle/ Advance

Supplying, fixing and testing Y type Strainer of size 65mm of ductile Iron body flanged ends with stainless steel strainer complete all as specified. Make Emerald/ rapid/ sant

PRESSURE GAUGE & PLUG Supply, installation and testing of Pressure Gauges complete with fittings , cock valve, syphon and pressure gauge etc. complete as reqd 100 mm dial for chilled water pipe complete all as specified.

TEMPERATURE GAUGE Supply, installation and testing of Thermometer gauge with thermowell complete with fitting etc. as reqd complete all as specified.

Supplying, fixing and testing Electronic online type non chemical type scale preventor of size 65mm complete all as specified Make:- Scale X/ Scale Off/ Weldon

Supply & installation and testing of water flow switch size 25 mm dia complete all as specified. Make:- Honetwell/ Rapid cool

Supplying and fixing and testing PVC makeup water tank of 2000 liters capacity duly interconnected and erected on and including RCC staging of suitable foundation including inlet and outlet necessary pipe lines , overflow connection and float valve assembly with water level indicator etc complete all as specified.

Supplying and fixing and testing Monoblock type condenser water pump set with bronze impeller, mechanical seal of capacity 5.5 LPS, 20-22 M HEAD complete all as specified . MAKE:- KIRLOSKAR/ BEACON/ JYOTI

AIR HANDLING UNIT :- Supply, installing, commissioning and testing for air handling unit of suitable capacity of 8000 CFM as per manufacturer's design, minimum distance of AHU room from Main A.C Plant is 30m. draw type having technical specification as per manufacturer recommendation of sectionalized construction, factory made, floor mounted double skin type with GI casing of outside layers and inside layer of suitable thickness as recommended by manufacturer with polyurethane foam (PUF) insulation complete with all accessories and controls etc and comprising of following :- Make : Blue Star/Voltas/Carrier/ Edgetech/Zeco (i) 6 row deep chilled water cooling coil of copper tube and 2 row for heathing coils with aluminum fins with automatic controlled heating cooling thermostat and suitable for chilled water. (ii) Blower section complete with blower for weather maker suitable for required as CFM as with GSS as per manufacturer design and ground requirement eliminators with suitable capacity TEFC squirrel cage induction motor for operation on 3 phase, 415 Volt, 50 Hz, AC supply with belt drive package and belt guard. (iv) Washable type pre-filters with filter element made out of synthetic non woven media supported by HDPE mesh on both side including stitching in diamond pattern complete including frame and suitable for efficiency 90% down to 15 micron complete with mounting frame work.

DUCTING AND INSULATION :- Design Supply, fabrication installation of air distribution system made out of 22 guage (PGI sheet) galvanized steel section ducting of thickness as per Indian Standard (IS: 655-1963) including 3mm rubber gasket, nut and bolts for jointing. The supply air duct and return air duct over the ceiling with necessary inbuilt stiffeners to maintain the desired noise level from AHU to condition room, of commercial grade VIII as per IS-655 including main air chamber complete insulated with TF quality EPS sheet 50mm thick density not less than 36 Kg/cum and covered with chicken wire mesh, vapour barrier PVC sheet and 10mm thick cement and plaster (where ever passes through the truse wall having height more than 6 meter and same shall be finished as per existing) with suitable MS supporting arrangements from floor /RCC roof/ceilings/walls with, adjustable dampers, vanes etc complete as per specification and as per ducting layout marked tentatively on site plan to meet the required qty of supply air in the condition room and to maintain the design parameters, air velocity and uniform distribution of condition air with all its accessories complete all as specified. (Make:- Sail/ TATA/ Bushan/ ESSAR)

DUCTING AND INSULATION :- Design Supply, fabrication installation of air distribution system made out of 24 guage (PGI sheet) galvanized steel section ducting of thickness as per Indian Standard (IS: 655-1963) including 3mm rubber gasket, nut and bolts for jointing. The supply air duct and return air duct over the ceiling with necessary inbuilt stiffeners to maintain the desired noise level from AHU to condition room, of commercial grade VIII as per IS-655 including main air chamber complete insulated with TF quality EPS sheet 50mm thick density not less than 36 Kg/cum and covered with chicken wire mesh, vapour barrier PVC sheet and 10mm thick cement and plaster (where ever passes through the truse wall having height more than 6 meter and same shall be finished as per existing) with suitable MS supporting arrangements from floor /RCC roof/ceilings/walls with, adjustable dampers, vanes etc complete as per specification and as per ducting layout marked tentatively on site plan to meet the required qty of supply air in the condition room and to maintain the design parameters, air velocity and uniform distribution of condition air with all its accessories complete all as specified. (Make:- Sail/ TATA/ Bushan/ ESSAR)

Supply and Installation of Acoustic Insulation Inside the Duct with Engineered Nitrile Rubber open cell foam with Density 140 - 180 Kg/m3 and Class 1 Fire Performance and with antimicrobial protection and should pass Fungi Resistance as per ASTM G 21 and Bacterial Resistance as per ASTM E 21 using manufacturer's recommended Rubber based Adhesive in a blend of solvents. Thickness of insulation 15 mm complete all as specified. Make:- (Armacell/ A flex/ Paramount)

Material and labour for Thermal Insulation to supply air duct in Un Conditioned Space using closed cell Anti-microbial and anti- fungal class O Nitrile rubber elastomaric insulation of density 40-60 Kg / M3, thermal conductivity of 0.035 W/MK at 20 degree celcious mean temp and mu>10000 without vapour barrier and factory laminated aluminium foil of 19 MM complete all as specified. Make:- (Armacell/ A flex/ Paramount)

Material and labour for Thermal Insulation to supply air duct in Conditioned Space using closed cell Anti-microbial and anti- fungal class O Nitrile rubber elastomaric insulation of density 40-60 Kg / M3, thermal conductivity of 0.035 W/MK at 20 degree celcious mean temp and mu>10000 without vapour barrier and factory laminated aluminium foil of 09 MM complete all as specified. Make:- (Armacell/ A flex/ Paramount)

Supplying, fixing, testing and commissioning of supply air grills of powder coated aluminium with aluminium volume control dampers as per manufactuer's specifications complete all as specified.

Supplying, fixing,testing and commissioning of return air grills of powder coated aluminium without aluminium volume control dampers as per manufactuer's specifications complete all as specified.

Fire damper & actuator with smoke/fire sensor arrangement comprising of the following:- Supplying, fixing, testing and commissioning of motorised combination fire & smoke dampers in supply air duct/main branch and return air duct as and where required of required sizes. The fire damper shall be motorised and spring return type so as to close the damper automatically in the event of power failure and open the damper when power is restored. The Fire & smoke damper shall be complete with electronic temperature sensor and electrically operated actuator and interconnecting wiring between AHU & dampers The fire damper shall be located in the supply / return air ducts.The control panel shall be located such that the reset can be done easily complete all as specified.

(a) Fire Damper

(b) Actuator with smoke/fire sensor (Make:- belimo/ seimens honeywell)

Material and labour for Pan type humidifier of 6 KW to achieve desire relative humidity in condition space along with makeup water tank of 500 ltrs, with necessay controls such as controlwiring automatic humidity vcontrol system, humidistat complete all as specified. (Rapid cool/ Thermax/ KEPL)

Hot Water Generators : - Supply, installation and commissioning of electrical hot water generator equipped with sufficient number of flanges and electric immersion heaters. The pressure vessel shall be constructed as per ASME standards and insulated on all sides with 2 layers of 50 mm thick fiberglass with 28 guage aluminium cladding as per specifications. The hot water generator shall be equipped with all automatic and safety controls such as manual reset, high temperature water outlet, step controller and recycling relay, on/off switch type thermostat, pilot light, low water cut off and other controls as per manufacturers recommendations. All basic control and terminals shall be located in an integral control abinet factory wired and tested. The hot water generator shall be suitable for 415+/- 10% volts/50 cycles, 3 phase power supply. The entire hot water generator shall be factor assembled and tested requiring only connection to service of 36 KW complete all as specified. (Make:- Rapid cool/ Thermax/ KEPL)

Hot Water Pumps : - M & L for Monoblock type Hot water pump set with bronze impeller, mechanical seal of capacity 2 LPS, 20-22 M HEAD complete all as specified. . MAKE:- KIRLOSKAR/ BEACON/ JYOTI

HOT WATER COOLING ARRANGEMENT :- Hot water cooling arrangement comprising of the following :- (i) Supply and fixing MS 'C' class heavy duty ERW Hot water piping of size 40 mm for recirculation of chilled water complete with, and circulating the Hot water from AHU to pump, pump to HWG inlet, HWGr outlet to AHU. Water pressure gauge/thermometer in HWG inlet and outlet, AHU inlet. and AHU outlet connection complete with insulation of 19mm thick polyvinyl nitrite rubber insulation finished with 26 gauge Aluminum cladding complete with accessories comprising of control valves like butterfly valves, balancing valves, Y-strainers, non return valves, pressure gauges, thermometer, water flow switches etc complete all as specified.

Supplying and fixing and testing Butterfly Valves of size 40mm (Manual) with CI body, SS disc, nitrile rubber seal & O ring, PN 1.6 Pressure rating complete all as specified. Make:- Deepak/ Castle/ advance

Supplying, fixing and testing Non return valve of size 40mm with dual plate of CI body, Stainless steel plates, vulcanised NBR seal flanged ends and PN 1.6 Pressure rating for chilled water circulation complete all as specified. Make:- Deepak/ Castle/ advance

Supplying , fixing and testing Y type Strainer of size 40 mm (40 mesh) of ductile Iron body flanged ends with stainless steel strainer complete all as specified. Make Emerald, Rapid control.

Supplying, fixing and testing 3 Way Mixing Valve: Supply, Install, test & commissioning of 3 Way modulating proportional linear type motorised mixing valve of size 40mm having manual over ride facility with proportional thermostat and wiring with 1.5 sq mm copper conductor multi core complete all as specified.. Make:- Honeywell/ Seimens.

Supplying, fixing and testing Balancing valve of size 40mm of PN 1.6 complete all as specified. Make:- Deepak/ Castle

PRESSURE GAUGE & PLUG Supply, installation and testing of Pressure Gauges complete with fittings , cock valve, syphon and pressure gauge etc. complete as reqd 100 mm dial for chilled water pipe complete all as specified.. Make:- Feibig, H Guru.

TEMPERATURE GAUGE Supply, installation and testing of Thermometer gauge with thermowell complete with fitting etc. as reqd complete all as specified. Make:- Feibig, H Guru.

Supply, installation and testing of auto air vent valve with ball valve size 15 mm dia complete all as specified.

Supply, installation & testing of ball Valves complete with fiitting like nipples, elbows, tees, bends, sockets etc 40 mm dia size complete all as specified.

Supply, installation and testing One No tamper proof electronic digital thermometer, hygrometer with recording and display facility fixed at plant room for, from digitally Relative humidity & return air temp sensor in AHU rooms with necessary switching arrangement, (To be Installed in plant room) complete all as specified.

Supply, Laying, jointing and testing of under ground cable XLPE insulated, 1100 volt grade heavy duty armoured with stranded aluminium conductor laid in trenches/duct/pipe including all electrical connection with required lugs and nuts, bolts complete all as specified and directed by Engr-in-Charge for the following complete all as specified :-

(a) 3 core 6 sqmm (For Condenser, chilled & hot water pumps, cooling tower)

(b) 3 core 10 sqmm (For AHU)

(c ) 3.5 core 35 sqmm (For chiller & HWG)

Material and labour earthing complete with GI plate electrode of size 600 x 600 x 6 mm thick bured directly in ground vertically at a depth not less 2.25 mtr below normal ground level with top edge of earth plate at a depth not less than 1.5 mtr below normal ground level surrounded from all sides by 1.5 cm thick packed layer of charcoal of dust and common salt filling in alternate layers and making electrode connection by using GI strip of size 32X6 mm by means of bolts nuts check nuts and washers made of brass and earth strip protected by light grade 40 mm dia GI Pipe upto test point and connected to main switch board are main controlled board with provision of GI pipe medium grade 20mm bore for watering including funnel wire mass RCC pit cover and PCC Chamber pit with 1:2: 4 type C2 (including excavation earth work) all as specified and shown on plate No 3 of SSR Part-1complete all as specified.

Supply and fixing Galvanised iron strip 32X6 mm as earth continuity conductor including fixing arrangement on suitable size insulator complete all as directed.

Supply and fixing Loop earthing with 8 SWG G.I Wire complete all as specified.

Dismantling of existing AC plant including all connected accessories i.e compressors/chillers, motors, piping work, existing ducting, AHU’s ducting complete upto building to be air conditioned (One no AC Plant is having 3 compressors, 1 AHU,s including connected ducts from each rooms to 3 Nos existing building to be air conditioned, cooling tower, water softening plant and remaining accessories, including breaking foundation of chiller/ package units, AHU’s cooling tower, water softening plant, motors and any other accessories pertaining to AC Plant and making good to disturbed flooring/ walls in AC Plant/AHU Room/ building to be air conditioned by PCC in flooring,brick work in walls or matching with existing surface, including closing of opened portion- in building to be air conditioned due to removal of existing ducts,in AHU rooms,in existing AC plant building due to removal of pipe lines of existing AC plant and finishing of disturbed area as matching with existing surfaces, including excavation for removal of existing pipes from AC Plant to AHU Room cooling tower etc. and refilling/ levelling the earth as per site requirement and any other kind of work requirement for demolition/ dismantling and earth work as required at site complete all as directed by Engr-in-Charge and depositing to MES store yard complete all as specified.

Material and Labour for Rubber Mat 2.0 mm thick one meter wide two meter long tested for LT voltage 1100 volts complete all as specified and as directed by Engr-In-Charge.

Automation system to control the humdidity (FOR BLDG NO 7, 10 &13)

(a)Hot Water Generators : - Supply, installation and commissioning of electrical hot water generator equipped with sufficient no. of flanges and electric immersion heaters. The pressure vessel shall be constructed as per ASME standards and insulated on all sides with 2 layers of 50 mm thick fiberglass with 28 guage aluminium cladding as per specifications. The hot water generator shall be equipped with all automatic and safety controls such as manual reset, high temperature water outlet, step controller and recycling relay, on/off switch type thermostat, pilot light, low water cut off and other controls as per manufacturers recommendations. All basic control and terminals shall be located in an integral control Cabinet factory wired and tested. The hot water generator shall be suitable for 415+/- 10% volts/50 cycles, 3 phase power supply. The entire hot water generator shall be factory assembled and tested requiring only connection to service of 18 KW complete all as specified. (Make:- Rapid cool/ Thermax/ KEPL) Qty - 01 No.

(b) Hot Water Pumps : - MONOBLOCK TYPE HOT WATER PUMP SET WITH BRONZE IMPELLER, MECHANICAL SEAL OF 2 LPS 12-15 M HEAD . MAKE:- KIRLOSKAR/ BEACON/ JYOTI (2 Nos, 1W+1SB)

(c) HOT WATER CIRCULATION ARRANGEMENT :- Hot water circulation arrangement comprising of the following :- (i) Supply and fixing MS 'C' class heavy duty ERW Hot water piping for recirculation of hot water complete with, and circulating the Hot water from booster fan to pump, pump to HWG inlet, HWG outlet to AHU. Water pressure gauge/thermometer in HWG inlet and outlet, AHU inlet. and AHU outlet connection complete with insulation of 19mm thick polyvinyl nitrite rubber insulation finished with 26 gauge Aluminum cladding complete with accessories comprising of control, valves like butterfly valves, balancing valves, Y-strainers, non return valves, pressure gauges, thermometer, water flow switches etc.

(d) MS 'C' class pipe of size 25 mm as required

(e) Butterfly Valves/Ball valve/ Gate valve (Manual) with CI body, SS disc, nitrile rubber seal & O ring, PN 1.6 Pressure rating of size 25 mm qty 06 Nos. Make:- Deepak/ Castle/ advance

(f) Non return valve with dual plate of CI body, Stainless steel plates, vulcanised NBR seal flanged ends and PN 1.6 Pressure rating 25 mm qty 02 Nos. Make:- Deepak/ Castle/ advance

(g) Y type Strainer (40 mesh) of ductile Iron body flanged ends with stainless steel strainer 25 mm qty 01 Nos Make Emerald, Rapid control.

(h) PRESSURE GAUGE & PLUG Supply & installation and testing of Pressure Gauges complete with fittings , cock valve, syphon and pressure gauge etc. complete as reqd 100 mm dia 04 Nos. Make:- Feibig, H Guru.

(j) Supply & installation and testing of auto air vent valve with ball valve size 15 mm dia -01 No.

(k) Supply, installing, commissioning and testing for booster fan of capacity of 3500 CFM as per manufacturer design, installed in supply air duct of sectionalized construction, factory made, ceiling suspended double skin type with GI casing of outside layers and inside layer of suitable thickness as recommended by manufacturer with polyurethane foam (PUF) insulation complete with all accessories comprising of following :- Make : Blue Star/Carrier/ Edgetech/Zeco (i) 2 row deep water heating coil of copper tube with aluminum fins with automatic controlled heating through thermostat and humidistat. (ii) Blower section complete with blower for weather maker suitable for required as CFM as with GSS as per manufacturer design and ground requirement eliminators with suitable capacity TEFC squirrel cage induction motor for operation on 3 phase, 415 Volt, 50 Hz, AC supply with belt drive package and belt guard.

(l) Thermostat & humidistat qty 01 set

(m) Copper control wiring with necessary control system to control humidity automatically. Qty -01 Job

(o) Supply, Laying, jointing and testing cable XLPE insulated, 1100 volt grade heavy duty armoured with stranded aluminium conductor of size 16 Sqmm four core for hot water generator and 4 Sqmm 3.5 core for hot water pump and booster pump, laid in trenches/duct/pipe including all connecting items i.e lugs, nuts, bolts etc including electrical connection complete all as specified and directed by Engr-in-Charge - 01 Job.

Note:- Civil masonary work required for installation of AC Plant i.e, foundation for compressor/Chiller Units, condenser units, Hot water generator, pumps, cooling towers, humidifiers, AHUs make up water tank, expansion tank, LT Panel and other remaining item including number of earthings as per manufacturer's recommendations, making opening in wall for duct work, return air grill, cable duct work, piping etc and making good to the disturbed surfaces matching with existing specification, any type of mild steel work in rolled steel section MS plate, flats, rounds, nuts bolts etc with necessary structural steel work for supporting/hoisting water pipes, condensers, cooling water pipes, make up and drain water pipes and other items as per manufacturers recommendation, painting of two coats of synthetic enamel paint over a coat of red oxide primer of all MS pipe/structures as per the standard color coding of the cental AC Plant, painting over on of flow of water/refrigerant/chilled water/hot water with distinguished colours sand stencillintg of major components for identification anf fool proof operation of switchgears/indicators, false ceiling works as per site requirement for opening for fixing of ducts and finishing of opening to match the existing work as required at site complete all as specified and directed by Engr-In-Charge.

AP BUILDERS