WBPWD/SEWEC /BED / NIQ- 175 /2023-2024

Amount

"ODU for DUCTABLE AHU"- SITC of Microprocessor based air cooled Condensing Unit Green refrigerant, thermastatic /Electronics expansion valve, Double/single scroll compressor arrangement for operation with Dx type AHU and suitable for operation on 415+/-10% Volt, 50Hz, 3 PH AC supply with protection of crankcase heater, HP/LP Cut outs, thermostats, Power and Control contactors for Evaporator Fans, Condenser fans, Compressors and matching condenser units, isolator switch for condenser units. Outdoor Air cooled Condenser unit shall comprise of Copper coil with Aluminium fins and Axial fan with fan Speed Controller. The static pressure of the outdoor unit shall be more than 75 Pa to avoid hot air circulation. The system should give non-stop cooling at 48-52 degrees of outside ambient temperature and provide test certificate. (Make : Mitsubishi Electric / Mitsubishi Heavy /O general /Daikin/Carrier ) no extra shall be payable for refrigerant gas, installation of ODU on Roof top with making concrete base foundation and VI Pad as per direction of EIC & transportation / shifting work. 11 Ton

Supply, installation, Testing & commissioning Refrigerant AHU KIT' including expansion valve, strainer, dryer ,Distributer, required for connection copper piping of different sizes etc. (Make -Dynafoss / Honeywell)

Supply & Laying Hard / Soft drawn Copper Refrigeration pipe line for liquid and suction line suitable for R410 refrigerant & 19 mm thick Nitrile Rubber 'class O' Insulation tube with supports & brackets as per direction of EIC. a. Liquid Line ( 1/2'' or 12.7dia) (Make-Ryoku/Rajco/Mandev) with 19 mm thick nitrile rubber insulation with Al. Foil covered (Make - Accroflex/Suprime)

b. Suction Line (7/8''or 22.22 mm dia) (Make-Ryoku/Rajco/Mandev) with 19 mm thick nitrile rubber insulation Al foil covered (Make - Accroflex/Suprime)

Drain Water piping work out of PVC / HDPE hared pipes with Insulation, fitting, accessories, bends, elbows, tees, flanges, tappings, wall sleeves, hangers, supports, anchors. (make-- Finolex/ Supreme) a) 32mm.Dia

S&L 3 / 4 C x 1.5 Sqmm (Control Cable FRLSH ) (Mk. Polycab/Gloster/RR/KEI)

S&L 4 Core 2.5 sq. mm. (Control Cable FRLSH) (Mk. Polycab/Gloster/RR/KEI)

Supply and fixing flexible double canvass connection for Ductable split air-conditioners. (FR)

Supply and fixing of UVC EMIITTER for the above IDUs for prevention of fungus in the cooling coils, The minimum UV intensity in the coils shall be 700-800 UW-SEC/CM2. The unit shall be UL.Listed (UL-1995) and it should be suitable to fix the same in 11 TR IDU and AHU. (Make - Alfa / Ruks).

DUCTING WORK Fabrication , supply, Installation , testing & commissioning of following GSS (120GSM) sheet conforming to IS:737 – 1955 (Sail / TATA or as per choice of EIC) rectangular/round duct complete with neoprene rubber gaskets, elbows, splitter supports, flanges, turning vanes for supply air / return air duct erected with supporting rods, fustners, nuts etc. a. 0.8mm/22 SWG Ducting

b. 0.63mm/24 SWG Ducting

Supply & Fixing of Aluminium powder coated return air grilles without volume control damper ( Make - Premire / Air Enterprise/Airmaster/Air Kolkata)

Supply, Installation, Testing and Commissioning of powder coated extruded aluminium louvers with synthetic removable type filter, bird screen & and volume control damper for fresh air intake.

Supply and fixing of Opposed blade GI Duct damper (Make - Premire /Systemair / Air Enterprise / Caryaire / Airmaster)

Supplying, Fixing, testing and commissioning of fire dampers with oppose blade in supply air duct/main branch and return air path as and where required of required sizes i/c control wiring, the damper shall be motorized and spring return, Al.construction & with Fusible link.so as to close the damper in the event of power failure automatically and open the same in case of power being restored. The spring return action shall be inbuilt mechanism and not externally mounted. The damper shall also be closed in the event of fire signal complete as required and as per specifications. (Make: Carryaire/ Dynacraft/ TSC/Ravistar/ Systemair/Jonson Control)

Supply, installation, testing and commissioning of Actuators for Motrized fire Damper of suitable torque to operate the damper to be fitted in AHU outlet/ plenum inlet including wiring/ sockets etc. (Make Honeywell/ Belimo/Siemens)with necessary transformer & control wiring

Supply fixing of 4" thik with bitumin 2 layer Thermocol Insulation cover by Polythene, good quality alkaline Jute sackcloth, with 3/4" Sand Cement Plastring etc. as per direction of EIC.

Supplying and fixing of 9 mm thickness duly laminated aluminium foil of mat fininshed closed cell Nitrile rubber (class ''O'') insulation Anti Microbial Coating on duct after applying two coats of cold setting adhesive (The joints shall sealed with 50mm wide and 3 mm thick self afhesive nitrile rubber tape insulaton complete as per specifications and as required. for Duct (K-Flex / Amracell / Supreme/K Flex)

SITC of Ceiling Suspended Laminar Air Flow with Cleanliness : ISO Class 5 /AS US-FED CLASS-100/ as per ISO 14644-i)Direction of flow :- vertical (ii) Particle Retention : 0.3 Micron & above, (iii) Velocity : 90 feet / minute ± 20, (iv) Pressure gauge ; 0-25mm, Pleanum chamber. The complete cabinet should be made of Al. sheet (Make: AFI/Zeco/Air Kolkata/CGS) (An Autocad Generated Drawing has to be approved before starting of any construction)[for OT]

Charges for lifting of indoor & outdoor units & scaffolding arrangement for all equipments.

Miscellaneous Civil works with iron structure & with Blue Scope Tin Shed as and if required during installation of 2 Nos. AHU or other equipment including damage and mending as directed by EIC.

Fabrication of Support of Supply and return air duct made by 22SWG GI (Mk. Sail / Tata) & 40 x 40 x 5 mm MS angle iron frame incuding fixing of same and mending all the damages as per direction of EIC.

Supply & Fixing of Microprocessor based Panel for individual control of 11TR outdoor type AHU sensing & communication. (Approval of Drawing & BOM has to be made from EIC before construction)

Supply & Delivery of Ceiling suspended ductable type split airconditioners having Microprocessor based control system and the following specification. Capacity-11 Tonnage (upto +1 TR acceptable) Rated Cooling Capacity -132000 BTU/Hr No. of IDU-1 No Air-flow/IDU-4400CFM No of ODU- 2 Nos Compressor - 2 No Scroll Compressor (5.5 TR) Refrigerent -R410A Condenser & Cooling Coil:Copper coil Power Supply :415v, 50Hz,3 Ph AC (with applicable tolarance) (Make : Mitsubishi Electric / Mitsubishi Heavy /O general Bluestar//Daikin/Carrier )

Installation,testing and commisioning charges for the following ductable split air conditioner (both indoor and outdoor unit) by making suitable scaffolding arrangement as per site condition and incl. nitrogen flashing ,leak testing & vacuuming ,gas charging etc as per direction of E.I.C of the following

Supply, installation,testing and commisioning of Copper Refrigeration pipe line for Suction Line suitable for the above ductable unit with proper supports & brackets( per direction of E.I.C.) incl. 9 mm thick nitrile rubber insulation with proper tapping and mending good damages to original finish. Make of Cu Pipe - Rajco / Ryoku/ Mandev/Nippon Make of Insulation - Suprime / Accroflex / Armacell.

22.2 (7/8")mm Dia with 0.6 mm thick

SITC including vaccumiazation and Nitrogen of testing of following nominal size of soft/hard drawn copper refrigerent piping forpackage/VRV/VRF/RAC system, complete with fittings, with adjustable ring type hanger supports, jointing/brazing including accessories, insulated with XLPE class -O tubular insulation/with Class-O closed cell elastometric nitrile rubber tubular sleeves sections of specified thickness as given below for suction and liquid lines, all accessories as per specification etc. as required.

12.7 mm. dia(OD)(soft drawn) Cu. Pipes with tube thickness 1.2 mm incl. 19 mm thick insulation

Supply & installation of 25 mm PVC Drain Pipe Line (25 mm /32 mm OD,HD 1 mm thick )of the following size with 6 mm nitrile rubber insulation and with proper supports & brackets as per direction of E.I.C. (Make: Suprime/Oriplast)

Supplying,fitting & fixing in position suspended boxing for return and supply air arrangement for ducting incl false ceiling for boxing of IDU with frame work of aluminium hollow section of size 50mm X 25mm (2.0mm thickness) combined with aluminium corners of size 38mm X 25mm, suspended by aluminium hollow tube section of size 38mm X 25mm having size as suitable with aluminium composit panels (ACP) - Interior grade of thickness 3.0 mm comprising of proctective film, polyester coating, primer, aluminium coil, adhesive film, polyethylene core again with one layer adhesive film, aluminium bottom coating and finally service coating as per manufacturer's specification finished with aluminium screw and silicon sealent incl.suitable arrangement of grill fixing complete in all respect including all incidental charges etc. as per direction of EIC.

Installation Charges for Trap door with Aluminiun channel & ACP Board (3 mm thick) (Make:Aludecor/Protap Bond)Complete with linkages, levers, fittings, supports, all accessories for IDU Maintenance as per direction of E.I.C.

Supply & Fixing of Powder Coated extruded aluminium Supply Air Grills with aluminium volume controll dampers complete as per specification.

Supplying, fabrication & fixing 2 Nos. M.S. Angle of size (50 mm x 50 mmx6mm) for making platform for installation of outdoor unit of 2TR,2.5 TR,3.0 TR & 11 TR split 7 ductable AC incl. drilling 2 nos holes in each Angle including cutting holes into the wall & grouting the same with cement concrete (1:1 ½ :3) etc. fabricated with horizontal angle of 25 mm x 25 mm x 6 mm including supporting angle 40 mm x40mm x 6 mm in each platform in outer edge for transmitting the load centrally through 2Nos. (40 mm x 40 mm x 6 mm) Angle inserted into the exiting wall. Area of the platform is 2Mtr. x 1Mtr. or as per Machine configuration & load with adequate service access as per direction of EIC.

Supply and fixing flexible double canvass connection for Ductable split air-conditioners. (FR)

SITC of indoor & outdoor unit of High-wall Non-Inverter Split-type Air-Conditioner having following specification: Cooling capacity not less than 6400 Watt Minimum ISEER - 3.5, BEE level - 3-Star or more Capacity - 2.0 TR IS Compliance - IS-1391 Refrigerant - R410A/R32 Compressor - Rotary / Scroll Evaporator & Condenser Coil - Copper Operating outdoor temperature - 50ºC and above Power supply - 230V, 50Hz (± tolerance as per IS) f) Cordless Remote Arrangement with all modernized provision of temperature setting, Fan speed option (Low/Medium/High), Auto Swing direction setting, Air ventilation arrangement & other. (Make : Mitsubishi Electric / Mitsubishi Heavy /O general /Daikin/Carrier ) (With P2 Type Capacitor, PCB Must be inside a metal box, Warrenty 3 Years) (with 3 Mtr Suction, Delivery Cu Pipe Line & 4C x 2.5 Sqmm PVC unarmoured Cu Cable) Both indoor & outdoor unit of Split type machines to be fixed with MS Angle Iron Bracket (2 coat of RO & 1 coat Powder Coated Paint), suitable length of copper pipe & water pipe line etc.

Supply, fixing of M.S. Safety Net Guard for Outdoor unit of 1.5 / 2.0 ton Split type A.C. machine made with 25mm X 25mm X 6mm thick M.S.Angel & 19mm X 6mm M.S.Flat bar of base size-1320mm X 1160mm X 750mm width, covering with square M.S.Net & complete painting with two coats of metal primer and two coats of ICI Synthetic enamel , fixing the same on outer wall by c.c & plastering the same to the original finish and supply of Lock & Key set.

Supply & Fixing 240 V,25 A, 3 pin Modular type plug top with indicator (Brand approved by EIC) & necy. Connections.

SITC including vaccumiazation and Nitrogen of testing of following HVAC grade nominal size of soft copper refrigerent piping [ Make Royku / Totaline/ Mandeep or brand approved by EIC] for RAC system, complete with fittings with adjustable ring type hanger supports, jointing/brazing after bending, swerazing, welding complete with fittings, elbows, bends, globe valve of suction & liquid line supporting arrangement on walls including accessories, insulated with XLPE class -O tubular insulation/with Class-O closed cell elastometric nitrile rubber [ Make Supreme/ Aroflex ] tubular sleeves sections of specified thickness as given below for suction and liquid lines with supports & brackets as per direction of EIC all accessories according to specification etc. as required.

5/8" (15.88 mm.) dia (Soft drawn) Cu. Pipes (As per standard BS864 or ANSIB 16.22) with tube thickness 0.6 mm mm incl. 13 mm thick insulation.

1/4" (6.4 mm) dia (Soft drawn) Cu. Pipes(As per standard BS864 or ANSIB 16.22) with tube thickness 0.6 mm incl. 13 mm thick insulation.

Wrapping the copper pipe, insulation, cable by 26 SWG aluminum sheet to make it vermin proof and all accessories as per specification etc. as required.

Supply & laying of flexible PVC high quality water carrying pipe of proper size for draining water from already installed AC to any available (nearest) drain water pipe or near to ground level and the pipe must be properly saddled with the wall incl. proper insertion of the flexible pipe to drain water pipe and sealing the entry with required materials like PVC tape, High quality sealing the entry with required materials like PVC tape, high quality sealing gum etc. as reqd. All these arrangement for fixing must be arranged by the agency itself as per direction of EIC. (Make: Brand approved by EIC)

Supply and laying of 1.1 KV single core stranded 'PVC insulated FRLSH grade copper cable incl socketing, shaddling etc.as per direction of EIC (Mk. Polycab/Gloster/RR/KEI) of requisite following diameter for the above Air-Conditioners as per direction of Engineer - In - Charge incl. necy. fittings as required as per G.S . [Power cable for connection betweeen indoor and outdoor units & also Control Cable for connection betweeen outdoor units to indoor ]

3 core x 4.0 mm² Round PVC insulated copper cable

BURDWAN REFRIGARATION SERVICE

SRIDAM MONDAL