REPLACEMENT OF BER AC PLANT AT WSA BUILDING (DB-08 AND DB-14) AT AIR FORCE STATION HASIMARA

Amount

NOTE (Applicable for all Parts/ Items):- The bidders/contractors are advised to read tender document, all drawings & all corrigendum/ amendments and General conditions of contracts before entry/quoting the rates.

SCHEDULE "A" Part - I (BUILDING / STRUCTURE) (Note: This schedule is not pre-priced by MES and the pre-priced rate indicated as "Rs 0.00" under Col.5 signifies this fact only.)

Construction of Block of AC Plant Room, single storey, RCC framed structure complete all as specified and as shown on drawings.

SCHEDULE 'A' PART- II (EARTH WORK AND EXCAVATION) Details of prepriced Schedule is given in tender documents.

SCHEDULE 'A' PART- III (INTERNAL ELECTRIC SUPPLY) Details of prepriced Schedule is given in tender documents.

SCHEDULE 'A' PART- IV (INTERNAL WATER SUPPLY) Details of prepriced Schedule is given in tender documents.

SCHEDULE 'A' PART- V (CONVERSION OF EXISTING AC PLANT ROOM TO AHU ROOM) Details of prepriced Schedule is given in tender documents.

SCHEDULE 'A' PART- VI (EXTERNAL ELECTRIFICATION) Details of prepriced Schedule is given in tender documents.

SCHEDULE 'A' PART- VII (EXTERNAL WATER SUPPLY) Details of prepriced Schedule is given in tender documents.

SCHEDULE 'A' PART- VIII (AIR CONDITIONING) Details of prepriced Schedule is given in tender documents.

SCHEDULE 'A' PART- IX (SEWAGE DISPOSAL) Details of prepriced Schedule is given in tender documents.

SCHEDULE 'A' PART -X (MISCELLANEOUS ITEMS) Note:- This schedule is not pre-priced by MES and the pre-priced rate indicated as "Rs 0.00" under Col 5 signifies this fact only.

CONVERSION OF EXISTING AC PLANT ROOM TO AHU ROOM Roughening surface of old concrete floor/roof by picking, sweeping clean and washing down with water using wire brush brooming down and applying the following treatment all as directed in order of precedence as stated :- (i) 15mm thick screed bed in CM (1:4) on existing roof surface true to level. (ii) Applying one coat of bituminous primer @ 0.40 Ltr/Sqm. (iii) Supply and laying 3mm thick APP based polymeric membrane of approved manufactured with weight not less than 3.60 Kgs per Sqm reinforced with non-woven polyester fabric/matt weighing not less than 160gms per Sqm having softening point not less than 150 mm centigrade, having tensile strength of 650 N/5cm and 350 N/5cm in longitudinal and transverse directions respectively of the reinfocred tearing strength of 180 N by torch application . Polymeric membrane shall be taken to a height of 30cm(minimum) and then inserted inside the groove of parapet wall and shall be finished by a membrane flashing wherever it is noticed. Note :- (i) Laying APP based polymeric membrane shall be done torch on method as per manufactures instructions. (ii) A minimum overlap of 100mm and 75mm should be made at the end and sides of the polymeric membrane respectively and sealed all overlaps and joints as per manufacturers instruction. iii) APP based polymeric membrane shall be of any one of the approved makes as specified here-in-after and shall conform to specifications given in IS 16540-2017/IS 16532-2017.

Item No 10.01 Contd..... (iv) Contractor shall produce necessary test certificate of the manufacturer to the Engr-in-Chage before incorporation in the work. (v) Necessary independent tests shall also be carried out by the Contractor without any extra cost to the Deptt as per relevant IS specifications and membranes with satisfactory test results shall only be incorporated in the work (vi) The work shall be executed through authorised applicators of original manufacturer only

INTERNAL ELECTRIC SUPPLY S&F Energy efficient five star rated non-decorative ceiling fan, 1200 mm sweep, 230 volts, single phase AC with service value 6.00 BEE, Brushless Direct Current (BLDC) without remote type with accessories like holding down rod, hanging clamps, blades, fan hook including writing MES number (as per standard practice) and connecting up with three core flexible copper conductor cable of suitable size from ceiling rose complete in all respect all as specified and directed.

S&F Exhaust fan, heavy duty, copper wound, of size 300 mm sweep, metallic steel body, single phase, 900/950RPM, including suitable metallic louver, blades, frame and connecting up with three core flexible copper conductor cable of suitable size from ceiling rose complete in all respect all as specified and directed.

M&L for earthing complete with galvanized steel earth plate electrode 600 mm X 600 mm X 6 mm thick buried directly in ground (earth pit not less than 2.25 Mtr deep below normal ground level with top edge of plate not less than 1.5 Mtr below normal ground level connected to galvanised earth lead wire 4.0 mm dia by means of bolts, nuts, check nuts and washers of galvanized iron or steel all as shown in electrical plate No-3 SSR Part -1 2009 connected to earthing test point including earth wire protection pipe of dia 15 mm (medium grage), excavation and earth work, disposal of surplus spoil, provn of RCC cover 50 mm thick, reinforced with 8mm dia TMT bars @150 mm /C/C both ways with one handle for lifting made out of 10 mm dia TMT bar embedded in precast RCC (1:2:4) type B1, cover slab of size 54 cm x 54 cm x 5 cm and PCC (1:3:6) type C-1 concrete pit, funnel with watering pipe 20 mm bore (light grade) testing on completion complete all as specified and directed. [Note : (a) Proper earthing pit should be provided with pit cover. (b) Excavation/earthwork is deemed to be included in the quoted rate.]

INTERNAL WATER SUPPLY. S&F 15 mm bore angle cock, brass, chromium plated with long shank and cup, fency type, screwed down, high pressure with crutch or butterfly handle, screwed both ends for iron pipe complete all as specified and directed.

EXTERNAL WATER SUPPLY M & L for construction of valve pit of size 900mm x 900mm x 900mm made of Brickwork with sub class 'B' bricks, built in cement mortar 1:4 complete, internal surface of wall shall be plastered in cement mortar 1:4 , 3mm thick MS sheet cover with frame made up of angle iron 40 x 40 x 6mm duly painted with two coats of synthetic enamel paint over a coat of red oxide primer and including locking arrangement and lifting handle , including excavation, returning filling and removal of surplus soil to a distance not exc 50m, complete all as specified and directed.

EXTERNAL ELECTRIFICATION / AIR CONDITIONING M & L for cast iron cable route indicator in round shape duly marked/engraved "Cable LT 440V " fixed on RCC block of size 250 mm x 250mm x 250mm , complete all as specified and directed.

M&L for Earthing complete with GI earth plate elecrode of size 600 mm × 600 mm × 6 mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less'than 1.5 metres below normal ground level, connected to GI earth strip 32 mm x 6 mm by means of bolts, nuts, check nuts and washers of brass or HS steel all as shown in electrical plate No. 3 connected to earthing test point and and necessary excavation and earth work pre-cast RCC(1:1.5:3) type A-1 pit cover 50mm thick, reinforced with 8mm dia TMT bars @150 mm C/C both ways with one handle for lifting made out of 10 mm dia TMT bar embedded in precast RCC (1:1.5:3) type A-1, cover slab of size 54 cm x 54 cm x 5 cm and PCC (1:2:4) type B-1 concrete pit and angle iron frame and opening arrangement ) incl providing charcoal or coke and common salt in alternate layer of 15 cm compacted thickness all around the earth electrode with funnel and 20 mm bore galvanized iron watering pipe (medium grade) wire mesh, copper lugs, complete in all respect, protected by 40 mm bore (light grade) galvanized iron pipe up to earthing test point as directed, incl disposal of spoil to a distance not exc 50 mtr and necessary testing on completion complete all as specified and as directed. [Note : (a) Proper earthing pit should be provided with pit cover. (b) The unit rate includes for protection pipe and earth strip upto 7.5 m. Any variation in length of earth lead and protection pipe beyond 7.5 m shall be measured and paid seperately. (c) Excavation/earthwork is deemed to be included in the quoted rate.]

Design, fabrication , supply, installation, commissioning and testing of factory made factory assembled outdoor type LT panel suitable to be mounted on the floor/cable duct/wall as per site requirement using MS channel frame work, with cable entry from bottom/top as per drawing coordination by GE with removable gland plates with required knock-outs for incoming and outgoing cables, Panel shall be fabricated out of CRCA sheet 3.15mm thick steel folded and braced as necessary to provide a rigid supports for all components, totally enclosed and degree of protection shall not be less than IP-54, multi-tier cubicle type formation with front hinged lockable door for the individual feerers/compartments, preparaqtion of surface and treatment by seven tank process, powder coated with approved colour for not less than 50 microns and all doors and covers shall be fully gasket using good quality EPDM gasket and /or rubber strips and to provide good quality locking arrangements , durable door opening and closing mechanism and digital volt & Amp meter and all as per approved from CPRI.. Bus bar duly mounted on insulators shall be 3 P+1N type with size 1.5 times the capacity of incomer all as specified and as directed. Incoming (a) 630 Amp, on load change over duly mounted in the Panel-01 No (b) 3-Phase digital multifunction meter (c) LED indicator lamp R-Y-B -01 Set Outgoing (a) MCCB 4 pole, 630 A, 36 KA-01 with adjustable thermal and magnetic setings (b) LED indicator lamp R -Y- B - 01 Set (NOTE: LT panel drawing layout shall be approved by the Contractor from GE before placement of order.)

M & L for boring of holes under road, pavement, hardstanding below 2 mtr from the road surface and dia of hole not exc 100mm without disturbing the top surface of the road , gettiing out and disposal of soil to a distance not exceeding 50m from the site of work, all as specified and directed.

Dismantling old BER Existing plant ( 8 x 7.5 TR Ductable split type )and taken out from site carefully by disconnecting elcectrical cable connections, pipings, ducting complete without damaging the plant / Bldg and depositing to MES Store Yard, complete all as specified and directed.

Design , Supply, Installation, Commissioning & Testing of water cooled scroll chiller units having minimum capacity not less than 80 TR ( 02 x 40 TR working and 01 x 40 TR stand By) with multi scroll compressor with microprocessor control. The Unit shall have compressor mounting arrangement on rubber Grommets with metal sleeves. Water cooled shell & tube type condenser. DX type evaporator duly insulated. Thermostatic expansion valve with External . Equalizer. Unit shall have filter dryer, pressure switch i.e. HP/LP, Electronic Thermostat Flow switch at chiller, Integral Refrigerant Piping & wiring, Accessories as required and called for, automatic and safety control mounted in central console Electronic microprocessor with soft starter panel central overloaded protector including comprising of following accessories/ facilities: ( 02 Nos working + 01 No Standby ) complete all as specified and directed as per description (Design Data Sheet) of item indicated as per Annexure 'A' . SPECIFICATIONS Mode: Auto/Manual Single Phasing Protection Compressor Restart Protection 10- Sec Time Delay between System Short Circuit Protection 5 deg C - Anti Freeze Protection Display on Micro control indicating compressor on, Crankcase Heater ON/Off Entering / Leaving water Temp with digital identification Refrigerant: R-407c or any other non-CFC/ non-HCFC gas, Actual capacity as per Ambient condition Scroll Chiller Unit shall be suitable for 400 V + 10%, 50 HZ , 3 Phase Ac Supply.

Item No 10.13 Contd..... Chiller Chilled water Inlet Temp. 12˚ C Chilled water outlet Temp. 7˚C Fouling Factor: 0.000088 m² K/W Condenser Condenser water Inlet Temp. 30˚ C Condenser water outlet Temp. 37.5˚C NOTES: (i) The rate shall be inclusive of Designing of Central AC plant along with specifications and submitted dully vetted by IIT / NIT / Government Engineering college . (ii) The specifications and quantities as per design by the Govt Designer shall be superseeded to the given specifications . (iii) The completion of the work shall be issued in phased manner. Provisional completion of the work shall be issued After physical execution of the work at site complete in all respect and successful commissioning of 24 hours Phase-I test after achieving designed Temperature, Humidity and COP. (iv) The complete central AC Plant schematic / line plan layout shall be approved by the contractor from Accepting officer before commencement of work. (v) The Phase -I completion of the work shall be issued After 24 hours Phase-I Test in presence of Engg-in-charge , GE and rep of Accepting Officer. (vi) The Phase -II ( summer / monsoon / winter ) Tests shall be carried out by The Rep of Accepting Officer.

Item No 10.13 & 10.14 Contd..... (vii) The Plant shall be operated by the contractor till completion of Phase II test by engaging skilled Technician having ITI qualification round the clock in three shift of 08 Hrs per day (One skilled Refrigeration Mechanic per shift) as directed by GE. Five percentage of quoted rate of 10.13 shall be released after successful completion of three seasonal phase, i.e,. Phase II Test and manning operation of AC plant) (viii)The Defect liability period of the contract shall start after the completion of all phase-II tests. (ix) The cost of control device, control wiring, component, and connection to microprocessor control unit required for founctioning of the AC plant to achieve desired inside conditions shall be deemed to be included in the quoted rates by the Contractor. (x) The separate control wiring layout showing the HWG, Chillers, Thermostat, Humidistat, Humidifier with digital display devices and microprocessor/VFDs shall be submitted to Accepting Officer for approval before commencement of work

Supply, installation, commissioning & testing of flame proof of AHU of capacity not less than 18000 CFM for operation of supply and return air application suitable capacity, indoor type, draw through type of sectionalized construction, factory made, floor mounted double skin type made of 25mm thick modular AHU panels with GI casing of thickness 24 Gauge outside layers and 24 Gauge inside layer injected with CFC free polyurethane foam (PUF) of 38 kg/cum density insulation complete with blower section, chilled water cooling coil section, heating coil section and water spray sprinkler system, filter section with muffler and access door to attend the motor/fan with lighting provisions and all accessories capacity not less than 30000 CFM including necessary PCC foundation with vibration isolators all as specified and as directed including comprising of following :- (i) The unit shall consist of 6 rows deep copper Cooling coil and 2 rows deep copper heating coil ( copper tubes not less than 0.41 mm ) duly sorrounded with aluminium fins (12 FPI) of 8 rows deep copper tube with aluminium fins with automatic controlled anti-freeze thermostat . (ii) Blower section complete with blower having forward curved centrifugal fan for weather maker suitable for desired static pressure as specified , with minimum 2 bends GSS eliminators with suitable capacity TEFC squirrel cage induction motor (IP-55 and class F insulation) for operation on 3 phase 415 volt 50 HZ AC supply with belt driven pulley.

Item No 10.16 Contd..... (iii) 50 mm thick 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 10 micron EU-3 Type complete with mounting frame work. (iv ) Secondary dry type cleanable and easily maintainable air filter supported by GI wire and folder to form accordion plate having an efficiency of 99% down to 5 micron EU-5 TYPE complete with mounting frame works. (v) Drain connection, stainless steel (SS304 Grade) drain pan and with necessary GI pipe for drain out the condensate to the open drain of the building. (vi)HUMIDIFIER :- Humidification system complete with monoblock pump set of suitable capacity , control Wiring , Square Plastic water tank of suitable size , pipe line & sprinkler system inbuilt inside AHU as required at site with fully automatic arrangement for operation with humidistat.

Supply, installation, Commissioning & Testing of electrically operated HOT WATER GENERATOR of capacity not less than 50 KW made up of 8 mm MS sheet and dishend made of 10 mm MS sheet having 16 guage stainless steel lining with heaters arranged in banks and controller and Thermostat so that required quantity of hot water is generated at 50 degree Celcius with nominal variation including 100 mm thick resinbond fiber glass insulation of 24 kg/CUM density finished with 1.25 mm thick aluminium sheet cladding including necessary electrical control panel with automatic control panel. HWG shall be provided with inlet and outlet water connections complete with pressure release valve, low level cutout, Auto-vent sight -glass all as per specifications all as specified and as directed. The HWG shall confirms to protection IP-52 with IS 2147. Note : (i) The HWG shall be operated automatically through humidistat and thermostat devices. (ii) The control wiring & connections to be done by the authorised rep of OEM till the successful functioning of the system.

Supply, installation, commissioning & testing of factory made APFC panel of cap 50 KVAR with 7% detuned reactors. APFC panel shall be cubical type, constructed from 14/16 SWG CRCA sheet steel, suitable for indoor installation . Dust/ vermin proof floor mounted. with IP-42 protection, preparation of surface and treatment by 11 tank process for corrosion proof powder coating with approved colour for not less than 50 microns and all doors and covers shall be fully gasket using good quality EPDM gasket and /or rubber strips, and to provide good quality locking arrangement, durable door opening & closing mechanism and digital volt & Amp meter and all as per approved from CPRI. powder coated and as per IS-7032 shade complete all as specified and as directed. Incoming feeder (a) Incoming feeder shall be of 63 Amps, 36KA TP+NL MCCB thermal megnatic setting type ,O/L,S/C& E/F ,Digital volt meter 0 to 500 Volt , Digital Amp Meter from 0 to 100 Amp with suitable CT , Digital power factor indication meter, CTs, LED RYB Indicating lamp etc. Out going Feeder No-01 (a) 20 KVAR capacitor bank -01 No , with ON / OFF indication for saperate capacitor bank (b) 10 KVAR capacitor bank -03 No , with ON / OFF indication for saperate capacitor bank

Supply, installation, commissioning & testing of Induced draft type not less than 100 TR cooling tower of FRP complete with All Accessories, basin, fittings, fan, fan motor etc. with following technical data with necessary RCC foundation as per manufacturers standard specification including by-pass arrangement for non interruption in operation of AC plant while cleaning or replacing of strainer complete all as specified and directed.

Supply, installation, testing & commissioning of centrifugal pump sets factory assembled & tested for rated efficiency complete with TEFC Star rated motor mounted on common base frame, coupling guard, etc. for re-circulation of condensed water from cooling tower to condenser for the air conditioning system ( CONDENSER WATER PUMPSET ). The pumps shall be suitable for operation on 415 ± 10% Volts, 50 Hz, 3 Phase AC power supply all as specified and directed by Engineer-in-charge. ( 02 NOS WORKING + 01 NO- STANDBY) The pump characteristic of centrifugal pump set shall be as follows: a. Water quantity 264 US GPM b. Static Head 18 M c. Impeller Bronze

Supply, installation, testing & commissioning of centrifugal pump sets, factory assembled & tested for rated efficiency complete with TEFC Star rated motor & common base frame, coupling guard, aluminium cladded insulation etc. for re-circulation of chilled water for the air conditioning system ( CHILLED WATER PUMPSET ) . The pumps shall be suitable for operation on 415 ± 10% Volts, 50 Hz, 3 Phase AC power supply complete all as specified and directed by Engineer-in-charge. Make ( 02 NOS WORKING + 01 NO- STANDBY) The pump characteristic of centrifugal pump set shall be as follows: a. Water quantity 218 US GPM b. Static Head 18 M c. Impeller Bronze.

Supply, installation, testing & commissioning of centrifugal pump sets, factory assembled & tested for rated efficiency complete with TEFC Star rated motor & common base frame, coupling guard, aluminium cladded insulation etc. for re-circulation of chilled water for the air conditioning system ( HOT WATER GENERATOR ) . The pumps shall be suitable for operation on 415 ± 10% Volts, 50 Hz, 3 Phase AC power supply complete all as specified and directed by Engineer-in-charge. Make ( 01 NO WORKING + 01 NO- STANDBY) The pump characteristic of centrifugal pump set shall be as follows: a. Water quantity 180 US GPM b. Static Head 18 M c. Impeller Bronze.

Supply & Fixing Flexible canvas Connection for AHU's/package units to duct including zib superior quality all as specified and directed.

Supply and fixing GI Volume Control Dampers with matching flenges complete all as specified and directed.

Supply and fixing fresh air arrangement with VCD, Louvers and Bird screen complete all as specified and directed.

Supply and installation of factory made supply air square ceiling diffusers of size 600 mm X 600 mm, flush mounting, suitable for 4 way throw, core removable type powder coated with opposed blade damper complete all as specified and as directed.

Supply and fixing aluminium extruded powder coated return/supply grill without Volume control dampers with matching flanges horizontal fixed bar of 12 Nos,1.2mm thick and 11.5mm spacing with 0/15/30 degree deflection (ISI marked) complete all as specified and directed.

Supply and fixing of mechanical fire dampers fusible type approved for 90 minutes fire rating as per UL-555-1995 in main supply air duct including control wiring. The dampers shall be made of heavy gauge galvanized steel having multi blade construction. The blades shall be fitted with chrome plated shaft and self lubricated phosphorus bronze bushes. The dampers shall also be provided with jam seal (compression type) on sides to prevent spread of smoke and fire. The blades of the dampers are held in the ‘open’ position by a high tensile spring and a fusible link. The fusible link should be UL stamped and operates at 74˚C, causing the damper to close immediately on break fire to prevent the spread of fire through the ducts all as specified and as directed.

Supply and fixing of humidistat with digital control complete with all accessories and electrical connection all as specified and directed. Note : The setting of the designed humidity parameters and control connections with humidistat, humidifier and HWG shall be done by authorised rep of OEM only.

Supply and fixing of digital temp & humid display system showing ambient temp / humidity and AHU room temp and humidity necessary control wiring and sensor complete all as specified and directed.

Supply and fixing Thermostat complete all as specified and directed. Note : The setting of the designed Temperature parameters and control connections with Thermostat and HWG shall be done by authorised rep of OEM only.

Supply and fixing of PVC sheathed flexible multicore round copper cable of size 1.5 Sqmm 3 core laying over GI slotted cable tray including necessary supports and frame work complete all as specified and directed.. ( for controls , sensors , flow switches connections)

Supply and fixing of GI slotted cable tray 150 x 50 width , 1.6 mm width including necessary supports and frame work complete all as specified and as directed.

Supply and fixing of GI slotted cable tray 300 x 50 width , 1.6 mm width including necessary supports and frame work complete all as specified and as directed.

Supply and fixing 80mm dia Butterfly valves Cast Iron body, Wafer type integrally moulded close end body construction with Hand liver operated and rating of PN-10 complete all as specified and directed.

Supply and fixing 65mm dia Butterfly valves Cast Iron body, Wafer type integrally moulded close end body construction with Hand liver operated and rating of PN-10 complete all as specified and directed.

Supply and fixing 80mm dia Dual Plate Check Valves Cast Iron body & Rating of PN -10 complete all as specified and directed.

Supply and fixing 65 mm dia Dual Plate Check Valves Cast Iron body & Rating of PN -10 complete all as specified and directed.

Supply and fixing of Y- Strainers Cast Iron body & Rating of PN-10 of size 80 mm dia complete all as specified and directed.

Supply, laying, testing and commissioning of 80 mm dia chilled water piping of MS pipes-'C' class confirming to IS : 1239/3589 heavy class including of all fittings such as couplings bends, tees, elbows, reducers etc piping shall be supported with frame structure, necessary hardware's clevis support i e U strap clamps etc trust blocks of rubber material having density 1400 Kg/mᵌ etc.insulation shall be with half round section of PUF in density 36±2 Kg/mᵌ confirming to IS 12436 section shall be banded to the surface of pipe with adhesive fevicol SR 998 and binded with metal binding wire apply fevicol AC duct lag coating AF: 5590 on insulated surface uniformly and wrap the glass cloth tightly with over lapping so that no gaps are left and no air pockets are formed. immediately apply additional coating as finish layer on the wrap cloth and finally finish with aluminium cladding 28 gauge with necessary hardware fitting complete all as specified and as directed. ( FOR CHILLED WATER AND HOT WATER INLET AND OUTLET PIPING )

Supply, laying, testing and commissioning of 65 mm dia chilled water piping of MS pipes-'C' class confirming to IS : 1239/3589 heavy class including of all fittings such as couplings bends, tees, elbows, reducers etc piping shall be supported with frame structure, necessary hardware's clevis support i e U strap clamps etc trust blocks of rubber material having density 1400 Kg/mᵌ etc.insulation shall be with half round section of PUF in density 36±2 Kg/mᵌ confirming to IS 12436 section shall be banded to the surface of pipe with adhesive fevicol SR 998 and binded with metal binding wire apply fevicol AC duct lag coating AF: 5590 on insulated surface uniformly and wrap the glass cloth tightly with over lapping so that no gaps are left and no air pockets are formed. immediately apply additional coating as finish layer on the wrap cloth and finally finish with aluminium cladding 28 gauge with necessary hardware fitting complete all as specified and as directed. ( FOR CHILLED WATER AND HOT WATER INLET AND OUTLET PIPING )

Supply, laying, testing and commissioning of 50 mm dia chilled water piping of MS pipes-'C' class confirming to IS : 1239/3589 heavy class including of all fittings such as couplings bends, tees, elbows, reducers etc piping shall be supported with frame structure, necessary hardware's clevis support i e U strap clamps etc trust blocks of rubber material having density 1400 Kg/mᵌ etc.insulation shall be with half round section of PUF in density 36±2 Kg/mᵌ confirming to IS 12436 section shall be banded to the surface of pipe with adhesive fevicol SR 998 and binded with metal binding wire apply fevicol AC duct lag coating AF: 5590 on insulated surface uniformly and wrap the glass cloth tightly with over lapping so that no gaps are left and no air pockets are formed. immediately apply additional coating as finish layer on the wrap cloth and finally finish with aluminium cladding 28 gauge with necessary hardware fitting complete all as specified and as directed. ( FOR CHILLED WATER AND HOT WATER INLET AND OUTLET PIPING )

Supply , installation, testing and commissioning of 65 mm three way motorised modulating valves duly connected with modulating motor and thermostat etc. complete with fittings like elbows, tees, reducers, bends, MS flanges, supports, welding etc. as per requirement complete all as specified and as directed.

Supply and fixing of Ball valves/ purge Valve of size 25 mm dia with insulation complete all as specified and directed.

Supply and fixing water flow switches complete all as specified and as directed.

Supply and fixing of Pressure 4" Dia Gauges of Burden Type, stainless steel or CP brass stem complete with Globe valves confirming to IS - 3624 complete all as specified and directed.

Supply and fixing of Bimetal Dial type temperature Gauge of 100 mm dia. of suitable range with adjustable stem complete all as specified and directed .

Supply and fix 10000 Ltr PVC Make Up Tank, three layer, with Overflow Valve, Float Valve and connection to cooling tower all as specified and directed. (Note: Quoted unit rate shall be included cost of make up tank, over flow valve and float valve complete.)

Supply and fixing of 500 Ltr PVC Make Up Tank three layer white and including required thermal insulation as per requirement of chilled water make up tank of AC plant and Overflow Valve, Float Valve and connection to chilled water pipeline with 32 mm dia GI 'heavy grade' pipe of required length complete all as directed and as specified. (Note: Quoted unit rate shall be included cost of make up tank, thermal insulations, over flow valve, float valve and GI pipe complete.)

Supply and laying of thermal insulation of duct with 19 mm thick nitrile rubber sheet insulation having density 50 kg/cum and fixing with adhesive as per the recommendation of the manufacturer complete all as specified and as directed.

M&L for aluminium cladding of insulated duct using 0.5mm thick aluminium sheet complete with all accessories and all as specified and as directed.

Design, fabrication, supply, installation, testing and commissioning of the following Indoor type LT panel suitable to be mounted on the floor/ cable duct/ wall as per site requirement using MS channel frame work, with cable entry from bottom/ top as per drawing coordination by GE with removable gland plates with required knock-outs for incoming and outgoing cables. Panel shall be fabricated out of CRCA sheet 2 mm thick steel folded and braced as necessary to provide a rigid support for all components, totally enclosed and degree of protection shall not be less than IP-54, multi-tier cubicle type formation with front hinged lockable doors for the individual feeders/ compartments, preparation of surface and treatment by seven tank process, powder coated with approved colour for not less than 50 microns and all doors and covers shall be fully gasket using good quality EPDM gasket and /or rubber strips, and to provide good quality locking arrangement, durable door opening & closing mechanism and digital volt & Amp meter and all as per approved from CPRI.

Item No 9.53 Contd..... (c) 03 Nos for Condenser water pump 03 Nos 32 Amp., 25KA, 415V TP MCCB with adjustable thermal settings, with starter suitable for condenser water motor rating AC 3 phase 415V, 50Hz. The starter shall be with single phase prevention and electronic timer, with sufficient auxiliary contacts for remote ON/OFF indication lamps, bi-metallic thermal overload relay of suitable size current rating, ON/OFF push buttons suitable wired and interconnected with 4.0 Sq.mm single stranded PVC copper wire, etc, complete in all respects. (d ) 03 Nos for HWG Water Pump ( 01 Starter as specified) 03 Nos 32 Amp., 25KA, 415V TP MCCB with adjustable thermal settings, with starter suitable for condenser water motor rating AC 3 phase 415V, 50Hz. The starter shall be with single phase prevention and electronic timer, with sufficient auxiliary contacts for remote ON/OFF indication lamps, bi-metallic thermal overload relay of suitable size current rating, ON/OFF push buttons suitable wired and interconnected with 4.0 Sq.mm single stranded PVC copper wire, etc, complete in all respects. (e ) 02 Nos for AHU control panel 02 Nos 160 Amp., 36 KA, 415V TP+NL MCCB with adjustable thermal settings with starter suitable for condenser water motor rating AC 3 phase 415V, 50Hz. The starter shall be with single phase prevention and electronic timer, with sufficient auxiliary contacts for remote ON/OFF indication lamps, bi-metallic thermal overload relay of suitable size current rating, ON/OFF push buttons suitable wired and interconnected with 4.0 Sq.mm single stranded PVC copper wire, etc, complete in all respects.

Item No10.54 Contd..... (f) 01 Nos for Cooling Tower 01 Nos 63Amp., 25KA, 415V TP MCCB with adjustable thermal settings, with starter suitable for cooling Tower motor rating, AC 3 duty 415V, 50Hz. The starter shall be with single phase prevention and electronic timer, with sufficient auxiliary contacts for remote ON/OFF indication lamps, bi-metallic thermal overload relay of suitable size current rating, ON/OFF push buttons suitably wired and interconnected with 6.0 Sq.mm single stranded PVC copper wire, etc., complete in all respects. (g ) 01 Nos for APFC panel. 1 No 63 Amp 36KA, 415V TP+NL MCCB with adjustable thermal settings. NOTES :- (a) Contractor shall approve LT Panel drawing from the Garrison Engineer before placement of Order (b) Aluminium bus bars for three phases and neutral with capacity 1.5 Times the capacity of incomer , Busbar mounted on insulators, heat shrinkable PVC sleeves etc., with necessary interconnections as specified in Technical specifications for electrical & mechanical works, comprising of following switchgear and accessories complete in all respects. (c) Contractor should submit the complete design of central AC plant comprising of heat load calculation, working drawing of complete AC plant supported with design claculations of each component duly vetted by IIT/NIT/Govt Engineering college within two months of date of commencement of work through GE for the approval of Accepting Officer before execution of work. (d) Specifications and qty of 10.13 to 10.57 suggested by Govt Designer shall be superseeds the specifications and Qty in BOQ and shall be approved by Accepting Officer before commencement of work. (e) Design, supply and installation, Testing and commissioning of AC Plant shall be under taken through manufacture/OEM approved Specialist Firm.

Supply, installation, Testing & commissioning water softening plant considering water softening flow rate of 2 cum/Hrs with inlet hardness given 105 PPM and hardness of outlet will be less than 5 PPM for condenser water circuit complete all as specified and directed.

Supply, installation & Testing single side digital display process indicator unit at fixed on wall at AC plant room with high bright LED Digit max height upto 10" multiple window for both temperature and humidity from both DB's (DB No 08 and 14) 06 digit display per window, including transmitter and receiver of suitable voltage rage with RS 485 serial communication including necessary temperature/humidity sensor/thermocouple/transducers installed at both DB's. Transmitter power supply unit of suitable voltage range not less than 24 Volt complete all as specified and as directed. Make : Baumer/Radix/Wika/Masibus. (iii) Design, supply and installation, Testing and commissioning of AC Plant shall be under taken through manufacture/OEM approved Specialist Firm.

Supply, installation & Testing single side digital display process indicator unit at fixed on wall at AC plant room with high bright LED Digit max height upto 10" multiple window for both temperature and humidity from both DB's (DB No 08 and 14) 06 digit display per window, including transmitter and receiver of suitable voltage rage with RS 485 serial communication including necessary temperature/humidity sensor/thermocouple/transducers installed at both DB's. Transmitter power supply unit of suitable voltage range not less than 24 Volt complete all as specified and as directed. Make : Baumer/Radix/Wika/Masibus. Note :- Rate include temp indicator with MS powder coated enclosure, necessary transmitter and receiving units, temp and humidity sensors at both DB's, transmitter power supply unit of suitable voltage rage not less than 24 Volt, control cable connection between sensor to transmitter and receiver unit to process indicator, control cable from transmitter to receiver unit will be measured and paid separately under respective items.

M & L for Control Cable of 10 core 2.5 Sqmm size copper conductor armoured cable from transmitter to receiver unit installed at AC plant room, complete all as specified and as directed.

Supply and laying double walled corrugated (DWC) HDPE duct pipe of 40mm dia conforming to IS, approved colour complete with fittings for laying cable protection including cutting to the existing wall and drawn into wall for laying of cable, complete all as specified and as directed.

MANNING AND OPERATION OF AC PLANT Manning & Operation of Central AC plant, 80TR capacity, and DG set inside at WSA inside the technical area round the clock in three shifts of 08 Hrs on all working days including Sunday & holiday, from certified date of completion of Phase II by deputing adequate number of skilled tradesman all as directed by Engr-in-Charge. (a) Ref Mech(Skilled)/AC Operator- 03 shifts per day

Ditto all per Srl No item No 10.63 here-in-before but for next 11 calendar months after completion of 1st 11 calender months. (a) Ref Mech(Skilled)/AC Operator- 03 shifts per day

NOTE for item No. 10.63 & 10.64 (a) Rate quoted shall be deemed to be include cost of tools and plants, cleaning materials, Log books, Shut down/Beark down Register. (b) The operator must be skilled and ITI Holder in respective trade should be fully conversant with the maintenance and operation of AC Plant with minimum five year experience in the relevant field. (c) The operator shall also be responsible for keeping installation premises clean and Tidy. (d) All maintenance should be recorded in register as per maintenance schedule and contractor should obtain the signature of Engineer-in-Charge as maintenance schedule carried out.

Sch 'A' Part-XI (SCHEDULE OF CREDIT) Note :- Amount of Rs. 4800.00 indicated in Tender Documents as Schedule of Credit shall be deducted from the total quoted amount of BOQ.

RS COOLING APPLIANCES

M/s JK Jangid and Company