CWE(BHI)/SIR-36/2021-22 PROVN OF AIR CONDITIONING AT AF STN SIRSA

Amount

Water Cooled Chilling Machines Supply, Installation,Testing & Commissioning of 11 TR water cooled Scroll Chilling Machines fitted with hermetically sealed compressors, multi circuit Dx chiller,water cooled S&T condenser, Microprocessor based control panel,suitable for R-407 C Refrigerant, Shell & Tube Insulated Evaporator,Expansion Device, Suitable capacity Control Mechanism actual Cooling capacity on following Operation Parametres. Complete. Chilled Water Entering Temperature : 12.0 deg C Chilled Water Leaving Temperature : 7.0 deg C Evaporator Fouling Factor : 0.0001 MKS Condenser Water Entering/Leaving Temperature at 36.2/32.4 deg C Refrigerant : R-407 C Scope of Supply (a)1 set :- Scroll compressor hermetic complete with suaitble capacity squirell cage induction motor with class 'F' insulation suitable for operation on 415+ 10% volts, 50Hz, A.C. supply and automatic capacity control, safety switches, forced feed lubrication system etc (b) 1 No. Close transition type automatic star-delta starter suitable for compressor motor complete with ammeter with CTs, over load protection, under voltage protection, protection against phase reversal & independent single phase preventors etc. (c) 1 Set - Lubrication device consisting of automatic electric oil pump, oil cooler, oil strainer,automatic pressure regulating valve, oil heater, oil heater thermal switch etc. as per specifications.(d) 1 Set. - Matching Water Cooled condenser having Copper tube with Mechanically bonded aluminium fins. (e) 1 No. - Matching DX type chiller for Chiller units (f) 1 Lot- Refrigerant piping fittings, valves and accessories to interconnect compressor, condenser, chiller and expansion valve. (g) 1 Set- Microprocessor based control panel complete with all safeties, controls and LCD display as per specifications. ( h) 1 Lot- Refrigerant line accessories comprising of safety valves, angle valve, liquid line indications. (i) 1 Lot- Suction line and chiller insulation with minimum 19mm thick polyvinyl nitril rubber insulation complete as required. (j) 1 Lot- Frame work for mounting the above condenser, chiller compressor and motor with base plate complete with anti vibration pads/springs. (K) 1 Lot- Initial / first charge of refrigerant gas and compressor oil. (l) 1 Lot- PCC foundation for the chillers units with anti vibration pads complete.

Chilled Water Pump Set Supply, Installation, Testing & Commissioning of centrifugal mono block type chilled water pump set capable of delivering min. 100 USGPM of water against 28 mtr head each comprising of the following and complete as per specifications. (a) 1 No.- mono block type pump (b) 1 No. - Suitable HP TEFC squirell cage induction motor with class 'F' insulation 2900 rpm synchronous speed, operating on 415+ 10% volts, 3 phase, 50 Hz A.C. supply. (c) Lot- insulation of pump of 13 mm thick with aluminium foil faced closed cell chemically crossed linked XPE foam material. (d) 2 Nos. -100 mm dia dial type pressure gauges. (e) Lot- Mounting frame with Anti vibration pads and PCC foundation.

Condenser Water Pump Set Supply, Installation, Testing & Commissioning of centrifugal mono block Condender water pump set capable of delivering min. 135 USGPM of water against 22.00 mtr head each comprising of the following and complete. (a) 1 No.- mono block type pump (b) 1 No. - Suitable HP TEFC squirell cage induction motor with class 'F' insulation 2900 rpm synchronous speed, operating on 415+ 10% volts, 3 phase, 50 Hz A.C. supply. (c) 2 Nos. -100 mm dia dial type pressure gauges. (d) Lot- Mounting frame with Anti vibration pads and PCC foundation.

Hot Water Pump Set Supply, installation, testing & commissioning of centrifugal mono block type Hot water pump set capable of delivering 40 USGPM of water against 28.00 mtr head for 100% capacity each comprising of the following and complete as per specifications and drawings. (a) 1 No.- mono block type pump (b) 1 No. - Suitable HP TEFC squirell cage induction motor with class 'F' insulation 2900 rpm synchronous speed, operating on 415+ 10% volts, 3 phase, 50 Hz A.C. supply. (c) Insulation of pump (e) Lot- Mounting frame with Anti vibration pads. (f) Lot- PCC cement concrete foundation for the pump unit

AIR HANDLING UNITS Supply, Installation, Testing & Commissioning of double skin floor mounted type air handling units fabricated & assembled complete, made of 25 mm thick panels consisting of GI casing of thickness 0.6mm outside layer and 0.6mm inside layer, injected at factory by moulding machine with polyurethane foam (PUF) insulation complete with blower section and filter section with filter of 10 micron at 90% efficiency, chilled water coil constructed out of copper tubes not less than 0.5mm thickness and aluminum fins, Suitable capacity TEFC drive squirrel cage induction motor 415 ± 10% volts, centrifugal forward / backward curved fan suitable for 50 mm SP, access door etc. complete as per std. specification. Maximum face velocity across the coil shall be 500 FPM and each 6 Row deep chilled water cooling coil and 2 Row deep Hot Water Coil and RH to be maintained at 55 %± 5 of following capacities and comprising:- (a)Cooling & Heating Coil of copper tube and aluminium construction sized at maximum face velocity of 500 FPM. (b) Pre filter of 10 micron at 90% efficiency on the face of the coil in return air stream. (c) Squirrel cage induction motors suitable for 415 ± 10% volts, 50 Hz, AC supply meeting criterion as per ASHRAE standard 90.1-2007 and high efficiency. (d) Fan belt drive package (e) Vibration isolators. (f) Fan outlet velocity not exceeding 10 mps. Tag No. Space CFM AHU No. 1 Shed No 1 12500 C. F.M

Supply, installation, testing & commissioning of Pan type Humidifier of 6 KW made of 2 mm thick SS sheet complete with connected piping controls for automatic operation for maintaining RH as specified complete.

Supply, installation, testing & commissioning of Electric Hot Water Generator of 40.0 KW complete with control panel and std. accessopries for winter & Monsoon Re- Heating complete with controls i.e thermostate and humidistate with control wiring for maitaining the RH as specified .

COOLING TOWER Supply, Installation, testing and commissioning of FRP cooling tower of minimum 40 TR heat rejection capacity with FRP water basin PVC fillings with integral louvers and drift eliminators complete with hot water basin either fitted with spray nozzles or having self rotating sprinklers, statically & dynamically balanced axial flow type fan direct driven or driven through reduction gear box with TEFC induction motor , suction screen, make up quick filling arrangement, over flow and drain connections with necessary valves and suitable inspection ladder, access arrangement for cooling lower interior, installed on MS girders (MS-I sections) fixed in masonry foundations with cement concrete footing, second class brick work and cement mortor1:6; all accessories, basin fittings, fan, fan motor suitable for 415 Volt supporting structure, anti vibration mountings etc. (a) Water flow/tower 180 USGPM (b) Ent. Water Temp. 97 °F (c) Basin water Temp. 90 ˚F

ELECTRICAL CABLES Supply & Fix in ground/ in ducts/in pipes/on cable trays of following PVC insulated aluminum/copper conductor armoured cables of 1.1 KV grade confirming to IS complete with cable tray, clamps, saddles etc, including effecting proper connection to the equipment all as required and specified:-

3.5 C x 35 Sq.mm (aluminum) for H.W Generaor in Ch. W. Central AC Plant.

3.5 C x 25 Sq.mm (aluminum) for Chillers in Ch. W. Central AC Plant.

4C x 10 Sq.mm (alumunum) for main to AHU motor.

3C x 4 Sq.mm (alumunum) for Chilled Water , Condenser pumps, Hot Water Pumps, CT Fan .

4C x 1.5 Sq.mm (copper) For Controls & Pan Humidifier in all AC Plants.

Supply & Fix Al. / GI earth strip 25 mm x 3 mm below ground, in 40 mm GI pipe wherever required and on surface or in recess for connections etc, complete all as specified and as directed.

Earthing complete with galvanised steel earth plate electrode 60 cm x 60 cm x 6.0 mm thick burried directly in ground (Earth pit not less than 2.25 m deep below normal ground level) surrounded from all directions with charcoal dust, salt and edge of earth plate not less than 1.5 m below ground level connected to galvanized iron strip 32x6mm as earth lead by means of bolts, nuts, check nuts and washers made of glavanized iron and protected by galvanized iron pipe light grade 40 mm bore and watering pipe 20mm dia medium grade with funnel and wire mesh as specified and connected all as shown in electrical plate No 3 of SSR Part I including necessary earth work and excavation in any type of soil and PCC 1:2:4 type B - 1 in chamber and 80 mm thick precast RCC 1:2:4 type B - 1 using XPM weighing not less than 4Kg/Sqm for cover slab/coping complete all as specified. The GI earth strip & 40mm dia bore light grade GI pipe upto 7.5 metre deemed to be included in the rate quoted by the contractor. Beyonnd 7.5 metre GI earth strip and GI tubing light grade 40mm dia shall be measured and paid under the respective item of schedule, complete all as specified and as directed.

Supply & Fixing of 8 SWG wire for double loop earthing of all electrical Equipments,complete all as specified and as directed. Note:- (i) All terminations shall be made with proper lugs in the approved manner

PIPING-CHILLED WATER Supply, Installation, Testing & Commissioning of the following nominal sizes of chilled plumbing pipes MS ‘C’ CLASS as per IS: 1239, inside the building(with necessary clamps, vibration isolators and fitting like valves, flanges, union etc. but excluding valves, strainers, gauges etc.) cut to required lengths and welded at joints and inclusive of accessories like elbows, tees, reducers, sockets etc. including insulating with 15 mm (for all pipes) and 13mm (for drain pipe) thick closed cell chemically cross linked fire retardant polyethylene foam insulation of density 30 Kg/cum. The thermal conductivity of the material should not exceed 0.035 W/Mk at an average temp of 40 deg C,covered with aluminium faced foil complete with application with rubber based adhesive Pidilite SR - 505 / 998 .

65 mm dia

40 mm dia

Supply, installation, testing and commissioning of following butterfly valves in chilled water plumbing and adequately supported as per specifications:-

65 mm dia Valves

50 mm dia Valves

40 mm dia Valves

Supply, installation, testing and commissioning of following manual balancing valves in chilled water plumbing and adequately supported as per specifications:-

65 mm dia Valves

40 mm dia Valves

Supply, installation, testing and commissioning of following Y Strainer 65 mm dia in chilled water plumbing and adequately supported as per specifications,complete all as specified and as directed.

Supply, installation, testing and commissioning of following ‘Check Valves 50 mm dia in chilled water plumbing and adequately supported as per specifications,complete all as specified and as directed.

Supply, installation, testing and commissioning of following Gate Valves 32 mm dia in chilled water plumbing and adequately supported as per specifications, complete all as specified and as directed.

Supplying, installation, testing and commissioning of Auto air vents. 15 mm dia, complete all as specified and as directed

Supply,installation,testing and commissioning of 25 mm dia Ball valves for drain with fittings etc, complete all as specified and as directed.

Providing and fixing in position the industrial type pressure gauges , complete all as specified and as directed

Providing and fixing in position the mercury-in- glass industrial type thermometers complete with fitttings, complete all as specified and as directed.

Supply,installation,testing and commissioning of 3 way mixing valve of size 65 mm for fixing in chilled water piping in the AHU complete for the Air Handling Units complete with required controls wiring/installation kit etc. As per drawings and specifications, complete all as specified and as directed.

PIPING-HOT WATER Supply, installation, testing & commissioning of the following nominal sizes of Hot Water plumbing pipes MS ‘C’ CLASS as per IS: 1239, inside the building (with necessary clamps, vibration isolators and fitting like valves, flanges, union etc. but excluding valves, strainers, gauges etc.) cut to required lengths and welded at joints and inclusive of accessories like elbows, tees, reducers, sockets etc. including insulating with 15 mm (for all pipes) and 9 mm (for drain pipe) thick closed cell chemically cross linked fire retardant polyethylene foam insulation of density 30 Kg/cum. The thermal conductivity of the material should not exceed 0.035 W/Mk at an average temp of 40 deg C,covered with aluminium faced foil complete with application with rubber based adhesive Pidilite SR 505 / 998 all as specified and repairing damage to building etc.and conforming to the specified specification, complete all as specified and as directed

50 mm dia

40 mm dia

Supply, installation, testing and commissioning of following butterfly valves 50 mm dia Valves in hot water plumbing and adequately supported as per specifications., complete all as specified and as directed

Supply, installation, testing and commissioning of following manual balancing valves 50 mm dia Valves in hot water plumbing and adequately supported as per specifications., complete all as specified and as directed

Supply, installation, testing and commissioning of following ‘Y' type strainer 50 mm dia . in hot water plumbing and adequately supported as per specifications, complete all as specified and as directed.

Supply, installation, testing and commissioning of following ‘Check Valves 50 mm dia in hot water plumbing and adequately supported as per specifications, complete all as specified and as directed.

Supplying, installation, testing and commissioning of Auto air vents. 15 mm dia, complete all as specified and as directed.

Supply,installation,testing and commissioning of 25 mm dia Ball valves for drain with fittings etc., complete all as specified and as directed.

Providing and fixing in position the industrial type pressure gauges, complete all as specified and as directed

Providing and fixing in position the mercury-in- glass industrial type thermometers complete with fitttings, complete all as specified and as directed.

Supply, fixing, testing and commissioning of condenser water pipes of MS class ‘C’ of following sizes and material along with necessary clamps, vibration isolators and fittings such as bends, tees etc but excluding strainer and gauges etc adequately supported on rigid supports/buried in ground including excavation & return filling etc, complete all as specified and as directed.

80 mm dia

50 mm dia

40 mm dia

Supply, installation, testing and commissioning of following butterfly valves in condenser water plumbing and adequately supported as per specifications:-

80 mm dia Valves

65 mm dia Valves

50 mm dia Valves

Supply, installation, testing and commissioning of following manual balancing valves 50 mm dia in condenser water plumbing and adequately supported as per specifications, complete all as specified and as directed.

Supply, installation, testing and commissioning of following ‘Y' type strainer 80 mm dia in condenser water plumbing and adequately supported as per specifications, complete all as specified and as directed.

Supply, installation, testing and commissioning of following ‘Check Valves 65 mm dia in condenser water plumbing and adequately supported as per specifications, complete all as specified and as directed.

Supply, installation, testing and commissioning of following Gate Valves 32 mm dia without insulation, complete all as specified and as directed.

Providing and fixing in position the industrial type pressure gauges, complete all as specified and as directed.

Providing and fixing in position the mercury-in- glass industrial type thermometers complete with fitttings, complete all as specified and as directed.

Supply & Fixing of Flow Switch in the inlet and outlet line of cond. & chillers complete with its wiring, complete all as specified and as directed.

Expansion Tank Supply,installation,testing and commissioning of HDPE expansion tank of size 500 Lt complete with air vent and drain connection with float valve, quick fill and control valves and suitable foundation etc, complete all as specified and as directed.

Make Up Tank Supply,installation,testing and commissioning of HDPE make up tank of size 5000 Ltr. complete with air vent and drain connection & overflow, make up connection with float valve & foundation etc, complete all as specified and as directed.

AIR DISTRIBUTION Supply, installation and testing of GI sheet metal ducts for supply air & return air system as per IS - 655 in accordance with the approved shop drawings and as required by the specifications, complete all as specified and as directed.

24 gauge galvanised sheet steel

22 gauge galvanised sheet steel

Supply, fabrication, installation and testing the flexible connections constructed of fire resistant double resin sleeve as per the approved shop drawings, complete all as specified and as directed.

Grilles/ Diffusers Supplying, fixing, testing and commissioning of powder coated aluminium section of 20 G thick for supply/ return air grilles / diffusers without aluminium volume control dampers as per specifications, complete all as specified and as directed.

Volume Control Damper Supplying, fixing, testing and commissioning of GI volume control dampers made of 20 G thick sheet as per specifications, complete all as specified and as directed.

Fresh Air Grilles Supplying, fixing, testing and commissioning of power coated extruded aluminium section of 120 G thick for fresh air grill in weather maker room with volume control dampers, bird screen etc, complete all as specified and as directed.

Supply, installation, testing and commissioning of motorised combined fire damper made of 20 G GI sheet complete with control panel, inter connecting wiring complete.

Fire Dampers.

Actuators

Control Panel & Wiring

THERMAL INSULATION Supply install test and commissioning of acoustic insulation of duct as shown on drawing with 25 mm resin bonded fibre glass, of 48 kg/cum density, covered with and 28 G Aluminium perforated sheet, complete all as specified and as directed.

Supply install test and commissioning of thermal insulation of duct exposed to out side weather conditions with 15 mm thick closed cell chemically cross linked fire retardant polyethylene foam insulation of density 30 Kg/cum. The thermal conductivity of the material should not exceed 0.035 W/Mk at an average temp of 40 deg C,covered with aluminium faced foil complete with application with rubber based adhesive Pidilite SR 505/998 and 50mm x 3 mm thick self adhesive tape on both longitudinal & transverse joints etc.

Water Cooled Chilling Machines Supply, Installation,Testing & Commissioning of 10.0 TR water cooled Scroll Chilling Machines fitted with hermetically sealed compressors, multi circuit Dx chiller,water cooled S&T condenser, Microprocessor based control panel,suitable for R-407 C Refrigerant, Shell & Tube Insulated Evaporator,Expansion Device, Suitable capacity Control Mechanism actual Cooling capacity on following Operation Parametres. Complete. (Make : VOLTAS / BLUE STAR/DAIKIN/TRANE) Chilled Water Entering Temperature : 12.0 deg C Chilled Water Leaving Temperature : 7.0 deg C Evaporator Fouling Factor : 0.0001 MKS Condenser Water Entering/Leaving Temperature at 36.2/32.4 deg C Refrigerant : R-407 C Scope of Supply (a) 1set.- Scroll compressor hermetic complete with suaitble capacity squirell cage induction motor with class 'F' insulation suitable for operation on 415+ 10% volts, 50Hz, A.C. supply and automatic capacity control, safety switches, forced feed lubrication system etc. (b) 1No. Close transition type automatic star-delta starter suitable for compressor motor complete with ammeter with CTs, over load protection, under voltage protection, protection against phase reversal & independent single phase preventors etc. (c) 1 Set - Lubrication device consisting of automatic electric oil pump, oil cooler, oil strainer,automatic pressure regulating valve, oil heater, oil heater thermal switch etc. as per specifications. (d) 1 Set. - Matching Water Cooled condenser having Copper tube with Mechanically bonded aluminium fins.

(e) 1No. - Matching DX type chiller for Chiller units (f) 1 Lot- Refrigerant piping fittings, valves and accessories to interconnect compressor, condenser, chiller and expansion valve. (g) 1 Set- Microprocessor based control panel complete with all safeties, controls and LCD display as per specifications. (h) 1 Lot- Refrigerant line accessories comprising of safety valves, angle valve, liquid line indications. (i) 1 Lot- Suction line and chiller insulation with minimum 19mm thick polyvinyl nitril rubber insulation complete as required. (j) 1 Lot- Frame work for mounting the above condenser, chiller compressor and motor with base plate complete with anti vibration pads/springs. (k) 1 Lot- Initial / first charge of refrigerant gas and compressor oil. (l) 1 Lot- PCC foundation for the chillers units with anti vibration pads complete.

Chilled Water Pump Set Supply, Installation, Testing & Commissioning of centrifugal mono block type chilled water pump set capable of delivering min. 35 USGPM of water against 28 mtr head each comprising of the following and complete as per specifications. (a) 1 No.- mono block type pump (b) 1 No. - Suitable HP TEFC squirell cage induction motor with class 'F' insulation 2900 rpm synchronous speed, operating on 415+ 10% volts, 3 phase, 50 Hz A.C. supply. (c) Lot- insulation of pump of 13 mm thick with aluminium foil faced closed cell chemically crossed linked XPE foam material. (d) 2 Nos. -100 mm dia dial type pressure gauges. (e) Lot- Mounting frame with Anti vibration pads and PCC foundation.

Condenser Water Pump Set Supply, Installation, Testing & Commissioning of centrifugal mono block Condender water pump set capable of delivering min. 44 USGPM of water against 22.00 mtr head each comprising of the following and complete. (a) 1 No.- mono block type pump (b) 1 No. - Suitable HP TEFC squirell cage induction motor with class 'F' insulation 2900 rpm synchronous speed, operating on 415+ 10% volts, 3 phase, 50 Hz A.C. supply. (c) 2 Nos. -100 mm dia dial type pressure gauges. (d) Lot- Mounting frame with Anti vibration pads and PCC foundation.

Hot Water Pump Set Supply, installation, testing & commissioning of centrifugal mono block type Hot water pump set capable of delivering 20 USGPM of water against 28.00 mtr head for 100% capacity each comprising of the following and complete as per specifications and drawings. (a) 1 No.- mono block type pump (b) 1 No. - Suitable HP TEFC squirell cage induction motor with class 'F' insulation 2900 rpm synchronous speed, operating on 415+ 10% volts, 3 phase, 50 Hz A.C. supply. (c) Insulation of pump (d) Lot- Mounting frame with Anti vibration pads. (e) Lot- PCC cement concrete foundation for the pump unit

AIR HANDLING UNITS Supply, Installation, Testing & Commissioning of double skin floor mounted type air handling units fabricated & assembled complete, made of 25 mm thick panels consisting of GI casing of thickness 0.6mm outside layer and 0.6mm inside layer, injected at factory by moulding machine with polyurethane foam (PUF) insulation complete with blower section and filter section with filter of 10 micron at 90% efficiency, chilled water coil constructed out of copper tubes not less than 0.5mm thickness and aluminum fins, Suitable capacity TEFC drive squirrel cage induction motor 415 ± 10% volts, centrifugal forward / backward curved fan suitable for 50 mm SP, access door etc. complete as per std. specification. Maximum face velocity across the coil shall be 500 FPM and each 6 Row deep chilled water cooling coil and 2 Row deep Hot Water Coil and RH to be maintained at 55 %± 5 of following capacities and comprising:- (a) Cooling & Heating Coil of copper tube and aluminium construction sized at maximum face velocity of 500 FPM. (b) Pre filter of 10 micron at 90% efficiency on the face of the coil in return air stream. (c) Squirrel cage induction motors suitable for 415 ± 10% volts, 50 Hz, AC supply meeting criterion as per ASHRAE standard 90.1-2007 and high efficiency. (d) Fan belt drive package (e) Vibration isolators. (g) Fan outlet velocity not exceeding 10 mps. Tag No. Space CFM AHU No. 2&3 Shed No. 2 & 3 4000 C. F.M

Supply, installation, testing & commissioning of Pan type Humidifier of 3 KW made of 2 mm thick SS sheet complete with connected piping controls for automatic operation for maintaining RH as specified complete.

Supply, installation, testing & commissioning of Electric Hot Water Generator of 18.0 KW complete with control panel and std. accessopries for winter & Monsoon Re- Heating complete with controls i.e thermostate and humidistate with control wiring for maitaining the RH as specified .

COOLING TOWER Supply, Installation, testing and commissioning of FRP cooling tower of minimum 15TR heat rejection capacity with FRP water basin PVC fillings with integral louvers and drift eliminators complete with hot water basin either fitted with spray nozzles or having self rotating sprinklers, statically & dynamically balanced axial flow type fan direct driven or driven through reduction gear box with TEFC induction motor , suction screen, make up quick filling arrangement, over flow and drain connections with necessary valves and suitable inspection ladder, access arrangement for cooling lower interior, installed on MS girders (MS-I sections) fixed in masonry foundations with cement concrete footing, second class brick work and cement mortor1:6; all accessories, basin fittings, fan, fan motor suitable for 415 Volt supporting structure, anti vibration mountings etc. (a) Water flow/tower 60 USGPM (b) Ent. Water Temp. 97 °F (c) Basin water Temp. 90 ˚F

ELECTRICAL CABLES Supply & Fix in ground/ in ducts/in pipes/on cable trays of following PVC insulated aluminum/copper conductor armoured cables of 1.1 KV grade confirming to IS complete with cable tray, clamps, saddles etc, including effecting proper connection to the equipment all as required and specified:-

3.5 C x 25 Sq.mm (aluminum) for Chillers & Hot Water Generator in Ch. W. Central AC Plant.

3C x 4 Sq.mm (alumunum) for Chilled Water , Condenser pumps, Hot Water Pumps, CT Fan & AHU Motor .

4C x 1.5 Sq.mm (copper) For Controls & Pan Humidifier in all AC Plants.

Supply & Fix Al. / GI earth strip 25 mm x 3 mm below ground, in 40 mm GI pipe wherever required and on surface or in recess for connections etc.

Earthing complete with galvanised steel earth plate electrode 60 cm x 60 cm x 6.0 mm thick burried directly in ground (Earth pit not less than 2.25 m deep below normal ground level) surrounded from all directions with charcoal dust, salt and edge of earth plate not less than 1.5 m below ground level connected to galvanized iron strip 32x6mm as earth lead by means of bolts, nuts, check nuts and washers made of glavanized iron and protected by galvanized iron pipe light grade 40 mm bore and watering pipe 20mm dia medium grade with funnel and wire mesh as specified and connected all as shown in electrical plate No 3 of SSR Part I including necessary earth work and excavation in any type of soil and PCC 1:2:4 type B - 1 in chamber and 80 mm thick precast RCC 1:2:4 type B - 1 using XPM weighing not less than 4Kg/Sqm for cover slab/coping complete all as specified. The GI earth strip & 40mm dia bore light grade GI pipe upto 7.5 metre deemed to be included in the rate quoted by the contractor. Beyonnd 7.5 metre GI earth strip and GI tubing light grade 40mm dia shall be measured and paid under the respective item of schedule, complete all as specified and as directed.

Supply & Fixing of 8 SWG wire for double loop earthing of all electrical Equipments.

PIPING-CHILLED WATER Supply, Installation, Testing & Commissioning of the following nominal sizes of chilled plumbing pipes MS ‘C’ CLASS as per IS: 1239, inside the building(with necessary clamps, vibration isolators and fitting like valves, flanges, union etc. but excluding valves, strainers, gauges etc.) cut to required lengths and welded at joints and inclusive of accessories like elbows, tees, reducers, sockets etc. including insulating with 15 mm (for all pipes) and 13mm (for drain pipe) thick closed cell chemically cross linked fire retardant polyethylene foam insulation of density 30 Kg/cum. The thermal conductivity of the material should not exceed 0.035 W/Mk at an average temp of 40 deg C,covered with aluminium faced foil complete with application with rubber based adhesive Pidilite SR - 505 / 998 .

65 mm dia

50 mm dia

Supply, installation, testing and commissioning of following butterfly valves in chilled water plumbing and adequately supported as per specifications:-

65 mm dia Valves

50 mm dia Valves

Supply, installation, testing and commissioning of following manual balancing valves in chilled water plumbing and adequately supported as per specifications:-

65 mm dia Valves

50 mm dia Valves

Supply, installation, testing and commissioning of following Y Strainer in chilled water plumbing and adequately supported as per specifications:-

65 mm dia

50 mm dia

Supply, installation, testing and commissioning of following ‘Check Valves 50 mm dia in chilled water plumbing and adequately supported as per specifications, complete all as specified and as directed.

Supply, installation, testing and commissioning of following gate valve 32 mm dia in chilled water plumbing and adequately supported as per specifications, complete all as specified and as directed.

Supplying, installation, testing and commissioning of Auto air vents. 15 mm dia, complete all as specified and as directed.

Supply,installation,testing and commissioning of 25 mm dia Ball valves for drain with fittings etc, complete all as specified and as directed.

Providing and fixing in position the industrial type pressure gauges, complete all as specified and as directed.

Providing and fixing in position the mercury-in- glass industrial type thermometers complete with fitttings, complete all as specified and as directed.

Supply,installation,testing and commissioning of 3 way mixing valve of size 50 mm for fixing in chilled water piping in the AHU complete for the Air Handling Units complete with required controls wiring/installation kit etc. As per drawings and specifications, complete all as specified and as directed.

Supply, installation, testing & commissioning of the following nominal sizes of Hot Water plumbing pipes MS ‘C’ CLASS as per IS: 1239, inside the building (with necessary clamps, vibration isolators and fitting like valves, flanges, union etc. but excluding valves, strainers, gauges etc.) cut to required lengths and welded at joints and inclusive of accessories like elbows, tees, reducers, sockets etc. including insulating with 15 mm (for all pipes) and 9 mm (for drain pipe) thick closed cell chemically cross linked fire retardant polyethylene foam insulation of density 30 Kg/cum. The thermal conductivity of the material should not exceed 0.035 W/Mk at an average temp of 40 deg C,covered with aluminium faced foil complete with application with rubber based adhesive Pidilite SR 505 / 998 all as specified and repairing damage to building etc.and conforming to the specified specification, complete all as specified and as directed.

40 mm dia

32 mm dia

Supply, installation, testing and commissioning butterfly valves 40 mm dia in hot water plumbing and adequately supported as per specifications, complete all as specified and as .

Supply, installation, testing and commissioning manual balancing valves 32 mm in hot water plumbing and adequately supported as per specifications, complete all as specified and as directed.

Supply, installation, testing and commissioning ‘Y' type strainer 40 mm dia in hot water plumbing and adequately supported as per specifications, complete all as specified and as directed.

Supply, installation, testing and commissioning ‘Check Valves 40 mm dia in hot water plumbing and adequately supported as per specifications, complete all as specified and as directed.

Supplying, installation, testing and commissioning of Auto air vents. 15 mm dia, complete all as specified and as directed.

Supply,installation,testing and commissioning of 25 mm dia Ball valves for drain with fittings etc, complete all as specified and as directed.

Providing and fixing in position the industrial type pressure gauges, complete all as specified and as directed

Providing and fixing in position the mercury-in- glass industrial type thermometers complete with fitttings, complete all as specified and as directed.

Supply, fixing, testing and commissioning of condenser water pipes of MS class ‘C’ of following sizes and material along with necessary clamps, vibration isolators and fittings such as bends, tees etc but excluding strainer and gauges etc adequately supported on rigid supports/buried in ground including excavation & return filling etc, complete all as specified and as directed.

65 mm dia

50 mm dia

Supply, installation, testing and commissioning of following butterfly valves in condenser water plumbing and adequately supported as per specifications:-

65 mm dia Valves

50 mm dia Valves

Supply, installation, testing and commissioning of following manual balancing valves 50 mm dia in condenser water plumbing and adequately supported as per specifications, complete all as specified and as directed

Supply, installation, testing and commissioning of following ‘Y' type strainer 65 mm dia in condenser water plumbing and adequately supported as per specifications, complete all as specified and as directed.

Supply, installation, testing and commissioning of following ‘Check Valves 50 mm dia in condenser water plumbing and adequately supported as per specifications, complete all as specified and as directed.

Providing the following Gate Valves 32 mm dia without insulation, complete all as specified and as directed.

Supply,installation,testing and commissioning of 25 mm dia Ball valves for drain with fittings etc, complete all as specified and as directed.

Providing and fixing in position the industrial type pressure gauges , complete all as specified and as directed.

Providing and fixing in position the mercury-in- glass industrial type thermometers complete with fitttings, complete all as specified and as directed.

Supply & Fixing of Flow Switch in the inlet and outlet line of cond. & chillers complete with its wiring, complete all as specified and as directed.

Expansion Tank Supply,installation,testing and commissioning of HDPE expansion tank of size 500 Lt complete with air vent and drain connection with float valve, quick fill and control valves and suitable foundation etc, complete all as specified and as directed.

Make Up Tank Supply,installation,testing and commissioning of HDPE make up tank of size 3000 Ltr. complete with air vent and drain connection & overflow, make up connection with float valve & foundation etc, complete all as specified and as directed.

AIR DISTRIBUTION Supply, installation and testing of GI sheet metal ducts for supply air & return air system as per IS - 655 in accordance with the approved shop drawings and as required by the specifications. 24 gauge galvanised sheet steel

Supply, fabrication, installation and testing the flexible connections constructed of fire resistant double resin sleeve as per the approved shop drawings, complete all as specified and as directed.

Grilles/ Diffusers Supplying, fixing, testing and commissioning of powder coated aluminium section of 20 G thick forsupply/ return air grilles / diffusers without aluminium volume control dampers as per specifications, complete all as specified and as directed.

Volume Control Damper Supplying, fixing, testing and commissioning of GI volume control dampers made of 20 G thick sheet as per specifications, complete all as specified and as directed.

Fresh Air Grilles Supplying, fixing, testing and commissioning of power coated extruded aluminium section of 120 G thick for fresh air grill in weather maker room with volume control dampers, bird screen etc, complete all as specified and as directed.

Supply, installation, testing and commissioning of motorised combined fire damper made of 20 G GI sheet complete with control panel, inter connecting wiring, complete all as specified and as directed.

Fire Dampers.

Actuators

Control Panel & Wiring

THERMAL INSULATION Supply install test and commissioning of acoustic insulation of duct as shown on drawing with 25 mm resin bonded fibre glass, of 48 kg/cum density, covered with and 28 G Aluminium perforated sheet, complete all as specified and as directed.

Supply install test and commissioning of thermal insulation of duct exposed to out side weather conditions with 15 mm thick closed cell chemically cross linked fire retardant polyethylene foam insulation of density 30 Kg/cum. The thermal conductivity of the material should not exceed 0.035 W/Mk at an average temp of 40 deg C,covered with aluminium faced foil complete with application with rubber based adhesive Pidilite SR 505/998 and 50mm x 3 mm thick self adhesive tape on both longitudinal & transverse joints etc, complete all as specified and as directed.

Supply,installation,testing and commissioning of 25 mm dia Ball valves for drain with fittings etc.

HVAC Engineering Co

Blue Star Limited

SATISH AND CO

AP BUILDERS