Supply and installation of HVAC in New Corporation office Building at Council Hall in Tambaram City Municipal Corporation

VARIABLE REFRIGERANT FLOW OUTDOOR UNITS (VRF ODU): Supply Installation,Testing & Commissioning of modular type Variable Refrigerant Flow/Variable Refrigerant Volume air cooled Outdoor units suitable for cooling and heating,having all hermetically sealed inverter type Scroll Compressor(s),minimum two compressors for above 14HP modules, microprocessor based Controller, top discharge type condensing unit(s), with R410A Refrigerant, vibration isolators, with suitable foundation etc. complete as required.The unit shall deliver the rated capacity at AHRI Conditions and work even at 50°C ambient temperature without tripping.The unit shall be suitable to work on 400V+/10%, 3Phase, 50Hz AC power supply. The unit shall be filled with first charge of the refrigerant and ready for use as required.The COP at AHRI conditions shall not be less than 3.1 and IEER not less than 6.5 .

a. Ductable Unit

Total Indoor Ductable Unit

SECTION- B : REFRIGERANT PIPING AND PVC CONDESATE PIPING

6.4 mm dia with 19 mm thick insulation

Liquid Delivery Line-Compressor to Evaporator Coil

9.5 mm dia with 19 mm thick insulation

Liquid Delivery Line

12.7 mm dia with 19 mm thick insulation

Liquid and Gas Delivery Line ( For Indoor to Outdoor)

15.9 mm dia with 19 mm thick insulation

Liquid and Gas Delivery Line ( For Indoor to Outdoor)

19.1 mm dia with 19 mm thick insulation

Liquid and Gas Delivery Line ( For Indoor to Outdoor)

22.2 mm dia with 19 mm thick insulation

Liquid and Gas Delivery Line ( For Indoor to Outdoor)

24.5 mm dia with 19 mm thick insulation

Liquid and Gas Delivery Line

28.6 mm dia with 19 mm thick insulation

Liquid and Gas Delivery Line

31.75 mm dia with 19 mm thick insulation

Liquid and Gas Delivery Line

34.9 mm dia with 19 mm thick insulation

Liquid and Gas Delivery Line

38.1 mm dia with 19 mm thick insulation

Liquid and Gas Delivery Line

42.0 mm dia with 19 mm thick insulation

Liquid and Gas Delivery Line

44.45 mm dia with 19 mm thick insulation

Liquid and Gas Delivery Line

PVC CONDENSATE PIPING: Supply,installation,Testing & Commissioning of Heavy duty PVC pipes of following sizes; with 9mm thick Aluminium Foil faced Nitrile Rubber Insulation

Water drain pipe line (1” PVC Pipe)

25mm Dia for All Floors DATA-A-I

32mm Dia for All Floors DATA-A-ii

Supply and laying of 2 core 1.5 sq.mm. armoured copper cable for control wiring to the Terrace Pump Motor with runs of 14 SWG TC wire for earthing, providing in wall with suitable size GI clamps, screws, wooden plug, end termination by using suitable size cable glands, copper sockets and etc., as directed by the Departmental Officers.SD M-0786

For Communication Purpose

Supply and filling of R410A Refrigerant Gas M-2046

Filling of Refrigerant Gas i.e Each HP Need 0.5kg/HP

Testing of Nitrogen Pressure in Coolant Pipes By maintaining it by hold for certain Periods

Nitrogen Pressure Testing

FACTORY MADE RECTANGULAR GI DUCTING : Supply, installation, testing and commissioning of factory made lock-forming quality rectangular GI ducting, complying with IS: 277 and having 120 GSM coating classification. The price include the cost of necessory accessories & supports (like TDF flanges, ms angle flanges, neoprene gaskets, threaded rod, corner saddles, guide vanes as per SMACNA standards, joints, labelling etc..

Supply, Fabrication and erection of fabricated ducting made up of GI Sheets of 24 Gauge thickness M-2006

Supply, Fabrication and erection of fabricated ducting made up of GI sheets of 22 Gauge thickness M-2007

JET NOZZLE WITH DAMPER:

Supply, installation, testing and balancing of aluminum powder coated Jet Nozzle.

Supply, Fabrication and erection of fabricated ducting made up of GI sheets of 22 Gauge thickness M-2007

SUPPLY AIR ROUND DIFFUSER: Supply, installation, testing and balancing of aluminum powder coated circular / square diffuser with collar damper as per approved shop drawings and with standard flange size.

300mm Dia M-2009

ROUND DISC VALVE:

Supply, fixing and testing of Al. powder coated Round disc Valve of 150 mm dia for Toilet Exhaust with damper.

COLLAR DAMPER

Supply, installation, testing and commissioning of aluminium collar damper to be mounted for grilles & diffusers.

FIRE RETARDANT CANVASS

Supply, installation, testing and commissioning of fire-retardant canvss, with GI matching flanges, with a provision of operable zip. The entire assembly shall be fabricated at factory.

MS SUPPORT WORK

Supply, fabrication and installation of mild steel support work for support works as per the drawing , other than for duct, pipe and equipment supporting. The supports should be duly painted using two coats of primer and two coats of black enamel paint. DATA-E

SECTION – D : INSULATIONS

DUCT THERMAL INSULATION :

Providing and fixing of External Wall Thermal Insulation using extruded polystyrene rigid foam ship-lap edged, three dimensional closed cell structure Insulation board of required thickness over the plastered/ precast/ Masonry/ levelled brick wall, complying with ASTM C 578 type VI, Chlorofluoro carbons & Hydro chlorofluoro carbons Free, having K (thermal conductivity) value of 0.0289 W/m.K or less as per ASTM C 518, compressive strength of ≥ 350 kPa at 10% deflection listed as per ASTM D 1621, density not less than 34kg/cum as per ASTM D 1622, water absorption ≤ 0.3% by volume as per ASTM C - 272, oxygen index of 24 as per ASTM D 2863,Fire retardant property as per DIN 4102, Part 1 of class B2 and fixed with cementitious adhesive and fasteners, Level the surface using Glass fiber mesh with Polymer modified cementitious mortar/adhesives. The Protection profile in edges/ corners, etc., complete complying with standard specification.

9mm – U value of0.58W/M2k

DUCT ACOUSTIC INSULATION :

Providing and fixing of External Wall Thermal Insulation using extruded polystyrene rigid foam ship-lap edged, three dimensional closed cell structure Insulation board of required thickness over the plastered/ precast/ Masonry/ levelled brick wall, complying with ASTM C 578 type VI, Chlorofluoro carbons & Hydro chlorofluoro carbons Free, having K (thermal conductivity) value of 0.0289 W/m.K or less as per ASTM C 518, compressive strength of ≥ 350 kPa at 10% deflection listed as per ASTM D 1621, density not less than 34kg/cum as per ASTM D 1622, water absorption ≤ 0.3% by volume as per ASTM C - 272, oxygen index of 24 as per ASTM D 2863,Fire retardant property as per DIN 4102, Part 1 of class B2 and fixed with cementitious adhesive and fasteners, Level the surface using Glass fiber mesh with Polymer modified cementitious mortar/adhesives. The Protection profile in edges/ corners, etc., complete complying with standard specification.

Design, Manufacture, Supply, Installation, Testing, and Commissioning of Open cell Nitrile rubber for Acoustics , of Class-1 with Ultrafresh Antimicrobial protection as per ASTM G21, ASTM G22, UL-181 and E2180 , FM Global, Density 140-180Kg / m3, UL94 approved (HBF, HF 1 & HF 2) in accordance to UL 94,1996.Thermal conductivity 0.047 W / MK at 20 Deg C, Air Erosion Resistance test Confirming to ASTM Standard C 1071-05 (section 12.7). For application use Low Voc Adhesive. thickness as per specification. [ for duct linear=15mm thk ] Note - if the adhesive is not self adhiesive type then the glue should be used with the same manufacturer.

10mm Thick in Double Height Council Hall Y Axis and X Axis

UNDERDECK INSULATION :

Supply, installation, testing and commissioning 13mm thickness of closed cell nitrile preformed sheet insulation without Aluminium foil for underdeck insulation with support like round insulation disc and cross steel wire. Adhesive shall be used as recommended by insulation manufacturer for applying over concrete structures. W-0336

25mm - U value of1.12W/m2K in Double Height Council Hall