Air conditioning works for setting up of NAAC board room and Director room in the first floor of K.R Narayanan Memorial Students Amenity Centre at SH Campus

Amount

Air conditioning

od144256/2021_2022 : Supply, installation, testing and commissioning of 5.5 TR high energy efficient ducted split air conditioner unit (IDU) with inverter scroll compressor (ODU) suitable for continuous operation on 415 V, 3-phase, 50 Hz, AC supply with eco-friendly zero ODP R-410A as refrigerant gas and having features of long distance piping flexibility, wide angle air flow, high ambient temperature range, protection against DLT rise, oil shortage, HP / LP, single phasing / phase loss, over voltage / under voltage, overload / overcurrent, thermal protection for ODU fan motor, reverse rotation protection for inverter compressor, anti-corrosion condenser fin coating, touch screen controller with indications of compressor status, room temperature, ON / OFF timer, error indication and error reset and with necessary vibration isolation arrangement etc complete as per specification. Make:- Blue Star, Daikin, Voltas,Carrier,Mitsubuishi,Panasonic.

od144257/2021_2022 : Supply and providing adequate length of suitable sizes of superior quality hard drawn bright annealed copper refrigerant pipes (for suction and discharge) for connecting the refrigerant piping between ODU and IDU of the ducted AC unit including properly insulating the copper pipes with suitable size closed cell Class "O" elastomeric nitrile rubberized foam sleeve insulation and the joints sealed with self adhesive nitrile rubber insulation with proper mechanical fixing including brazing, pressure check, leak testing etc as required.

od144259/2021_2022 : Supplying and fixing 9 mm thick closed cell elastomeric Nitrile foam rubber having a density of 40-60 Kg/m³ (class "O") insulation on the existing Supply Air Duct after applying two coats of cold setting adhesive (CPRX compound). The joints shall sealed with 50 mm wide and 3 mm thick self adhesive nitrile rubber tape insulation and having Microban certified anti-microbial protection complete as per specifications and as required.

od144261/2021_2022 : Supplying and providing flexible canvass connection for interconnecting IDU and Supply Air Ducts using suitable gauge fabricated at site GSS sheet metal rectangular / round ducting and fire retardant canvass cloth, secured to the galvanized sheet metal on either side by a double lock seam is inserted between the equipment / air duct &amp; the ductwork to provide a wear resistant airtight flexible connection to eliminate vibrations, noise &amp; rattles complete as required as per specifications.<br>

od144262/2021_2022 : Supply, fixing and testing of acoustic insulation for Supply Air Ducts using 10 mm thick open cell processed, fire retardant nitrile rubber having density of 140-180 kg/m&sup3; after applying suitable adhesive for nitrile rubber and with Microban certified anti-microbial protection etc. complete as required and as per specifications.

od144263/2021_2022 : Supplying, fixing, testing and commissioning of Supply Air Diffusers of powder coated extruded aluminum etc as per specifications complete as required.

od144264/2021_2022 : Supplying and fixing of powder coated extruded aluminium Return Air Grills with louvers but without volume control dampers as per specifications complete as required.

od144266/2021_2022 : Supplying and fixing of powder coated extruded aluminium Supply Air Grills with aluminium volume control dampers as per specifications complete as required.

od144267/2021_2022 : 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.&lt;br&gt;Site fabricated GSS sheet metal rectangular ducting as per IS 655-2006 for 0.80 mm thick. (22 gauge)

od144268/2021_2022 : 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.&lt;br&gt;Site fabricated GSS sheet metal rectangular ducting as per IS 655-2006 for 0.63 mm thick. (24 gauge)

od144269/2021_2022 : Supply, installation, testing and commissioning of 1.5-Ton, 5-star rated, inverter type, wall mounting, high energy efficient, split air conditioner unit (IDU), fitted with hermetically sealed rotary compressor (ODU) suitable for eco-friendly and energy efficient refrigerant R-32A/R410A conforming to IS: 1391 Part-2 1992 (with latest amendments except power consumption norms) suitable for operation on 230 V, 50 Hz AC supply and capable of performing functions such as cooling, dehumidifying, air circulating, filtering etc and having features of long distance piping flexibility, wide angle air flow, IDU noise level &lt; 43 dB (A) and ODU noise level &lt; 56 dB (A) as per norms. The condensing and evaporating coils should be made of soft drawn bright annealed 100% copper tubes of suitable sizes and a standard length of upto 3 metres should be supplied with the AC unit and the copper pipes should be properly insulated with 10 mm thick closed cell Class &apos;O&apos; elastomeric nitrile rubberised foam sleeve insulation. A standard length of upto 3 metres of suitable size ISI marked multi-core PVC insulated FRLS round flexible copper control cable for electrically connecting IDU and ODU of AC unit and microprocessor based wireless remote controller with required number of suitable batteries should be supplied along with the AC unit. Total 3 numbers of comprehensive free services should be provided for the AC unit (IDU &amp; ODU) for the first one year, applicable from the date of commissioning. One year replacement warranty should be provided for the entire AC unit (IDU &amp; ODU) along with two years exclusive warranty for PCB (make: Legrand, OBO betterman /MK India/ Clipsan )and nine years exclusive warranty for the compressor. Make: Carrier, Panasonic, Blue Star, Hitachi or Daikin.

od144270/2021_2022 : Supply, installation, testing and commissioning of wall mounting type 4 kVA voltage stabilizer with input voltage range of 170 V - 270 V and having features of high power efficiency, intelligent time delay system, Low &amp; High voltage cut-off protection, built-in thermal overload protection, LED indications etc suitable for single phase 1/1.5-Ton air conditioner unit with three years warranty. Make: V-Guard, V-Stab, Pioneer or equivalent

od144271/2021_2022 : Supply and providing extra length of superior quality soft drawn bright annealed copper refrigerant pipes (suction and discharge) of suitable sizes for extending the refrigerant piping between ODU and IDU of the AC unit and properly insulating the copper pipes with 10 mm thick closed cell Class O elastomeric nitrile rubberised foam sleeve insulation and the joints sealed with black cotton tape with proper mechanical fixing including brazing, pressure check, leak testing etc as required.

od144272/2021_2022 : Supply and fixing good quality powder coated MS frames on wall (mounting brackets) using required numbers of suitable size anchor bolts for mounting the out door unit of AC in position complete with all accessories such as vibration isolating pads, hangers, railing etc as required.

90.6.5.19 : Supply and drawing the following sizes of multi-core PVC insulated & FRLS PVC sheathed 650/1100 V grade copper conductor round flexible cables conforming to IS 694 part I 1960 in the existing surface / recess conduit as required including giving necessary connections of the following sizes.4 core2.50sqmm

90.6.5.20 : Supply and drawing the following sizes of multi-core PVC insulated & FRLS PVC sheathed 650/1100 V grade copper conductor round flexible cables conforming to IS 694 part I 1960 in the existing surface / recess conduit as required including giving necessary connections of the following sizes. 4 core 4.50sqmm

90.10.3.23 : Supply and Fixing the following modular switches & accessories in the existing front plates and giving necessary connections as required (RoHS compliant )16A 3pin plug top

MARETEK INDIA PVT LTD

Bidder Name

PERKINS REFRIGERATION AND AIR CONDITIONING

MARETEK INDIA PVT LTD