Dr. K R Narayanan Memorial Students Amenity Center at Senate House Campus Interior works in Suite Rooms, Global Academic Center and Auditorium-Air Conditioning of the Five Suite Rooms

Amount

VRF/VRV ODU

od50734/2021_2022 : VRF/VRV OUT DOOR UNIT- 22 HP<br>Supply of Bureau of Energy Efficiency (BEE) 5 star/ ISEER minimum 5 rated VRF/VRV Outdoor unit with fully inverter type compressor with R410a or equivalent refrigerant. Outdoors units of the VRV/VRV system shall be compact air cooled type with Inverter controlled Twin Rotary Compressor / Scroll Compressor with microcomputer controlled expansion valve and the ODU must have dual fan motors. The condensor coil shall be with copper tubes and aluminium fins with anti corrossive treatment /BLUE FINS suitable for highly humid areas.<br>Air flow rate of minimum 329m3/min<br>Maximum Anechoic noise level of 66db(A)<br>Each module of outdoor unit must have at least 50 % of Variable compressor which can work on Part load Suitable to operate at heat load proportional to indoor requirement. The ODU must deliver COP of minimum 4.7 at 50 % load.<br>The outdoor units must be suitable for up to 165 m refrigerant piping between outdoor unit & the farthest indoor units.<br>Safety Features :-<br>(a.)High Pressure Switch. (b.)Fuse. <br>(c.)Fan Drive OLP. (d.)Fusible plug <br>(e.)OLR (f.)OLP for Inverter/digital.<br> (g.)Single Phase preventer <br>The outdoor units must be suitable for more than 150 Meter Refrigerant piping between outdoor unit & the farthest indoor units and total piping of 300 Meter for all the indoor units. Allowable level difference between outdoor unit & indoor units shall be 50 Meter in case of outdoor unit on top & 40 Meter in case of outdoor unit at bottom. Allowable level difference between various indoor units connected to one out door unit shall be up to 15 m. <br>Back up operation, in case of failure of one of the compressors of outdoor unit, for single module outdoor units or failure of one of the modules in case of multiple modules outdoor units shall be possible. The VRV outdoor unit shall always be supplying at least 33% of back up operation, of the full load capacity. <br>The entire operation of outdoor units shall be through independent remotes of indoor units. No separate Start/ Stop function shall be required. Starter for the Outdoor Unit compressor shall be ―Direct on Line type. Inverter compressor of the unit shall start first & at the minimum frequency, to reduce the inrush current during starting. Complete refrigerant circuit, oil balancing/ equalizing circuit shall be factory assembled & tested. With necessary mounting at site with full insurance coverage during factory to site, fire or any other contingencies<br> Brands :HITACHI/Daikin/Mitsubishi/Toshiba/Carrier/

VRF/VRV IDU

od50739/2021_2022 : Supply of branching Multikit as per manufacturers specifications

od50740/2021_2022 : ACOUSTIC THERMAL INSULATION<br>Supply and fixing insulation for the initial portion of supply air ducting with 10mm thick nitrile rubber sheet by applying two coats of cold setting adhesive(UP Twiga/ Lloyd Insulation)

od50741/2021_2022 : GRILLS & DIFFUSERS<br>Supply air outlets and return air intakes of anodized/ powder coated extruded aluminum to the desired colour to match the surroundings wall/ceiling. The grills shall suitable for air flow directions for the rooms, grills shall be removable key operated.

LOW SIDE WORKS

od50742/2021_2022 : R-410 A/Equivalent refrigerant charging of machines as per site requirement

od50743/2021_2022 : Installation of concealed IDU in position

od50744/2021_2022 : Erection of VRF/VRV ODU on top floor of the building

od50745/2021_2022 : Lifting, Shifting, Positioning, Testing and final commissioning of air conditioner

od50746/2021_2022 : Outdoor Unit Support<br>Outdoor unit mounting support with rust free coating and vibration dampers

od50747/2021_2022 : DRAIN PIPE<br>Supplying and Fixing High Density 25mm PVC pipe covered with insulation

od50748/2021_2022 : Supplying Incoming Power supply to IDU

od50749/2021_2022 : Incoming Power supply to ODU with 10sqmm copper wire

od50750/2021_2022 : CONTROL CABLE<br>Supply and Installation of Joint Free Multi Core Armoured Control Cable between indoor unit and outdoor unit of required cross section as approved by the manufacturer without chances for electrical losses (Skytone/Universal/ Delton/Finolex)

od50751/2021_2022 : Supply and erection of hard drawn refrigerant copper pipes(Totaline/Rajco/Mazflow) to integrate outdoor and indoor units with 6.4mm/28.58mm dia with 13mm closed cell nitrile rubber insulation(Armacell/K-flex/A-flex)

od50752/2021_2022 : 24 G DUCTING<br>Supply, conveyance, installation, balancing and commissioning of fabricated at site GSS sheet metal rectangular / round ducting complete with neoprene rubber gaskets, elbows, splitter dampers, vanes, hangers, supports, etc as per approved drawings and specifications of following sheet thickness complete as required. Site fabricated GSS sheet metal rectangular ducting as per IS 655-2006 for 0.63 mm thick. (24 gauge)

od50753/2021_2022 : 22 G DUCT<br>Supply, conveyance, installation, balancing and commissioning of fabricated at site GSS sheet metal rectangular / round ducting complete with neoprene rubber gaskets, elbows, splitter dampers, vanes, hangers, supports, etc as per approved drawings and specifications of following sheet thickness complete as required. Site fabricated GSS sheet metal rectangular ducting as per IS 655-2006 for 0.80 mm thick. (22 gauge)

PERKINS REFRIGERATION AND AIR CONDITIONING

Bidder Name

M/S JYOTHIS

PERKINS REFRIGERATION AND AIR CONDITIONING