VRV dedicated air conditioning for 2nd floor, Tower-D, World Trade Center, Nauroji Nagar, New Delhi

VRV/dedicated air conditioning for 2nd floor, Tower-D, World Trade Center, Nauroji Nagar, New delhi

1 AIR CONDITIONING SYSTEMS

1.1 VARIABLE REFRIGERANT FLOW SYSTEM

Supply, Installation, Testing & Commissioning of Modular type Variable Refrigerant Flow/Variable Refrigerant

Volume air cooled Outdoor units suitable for cooling/heating having 100% hermetically sealed inverter type twin

Rotary/Scroll Compressor(s),minimum two compressors (with individual separate PCB) for above 14HP

modules, microprocessor based Controller, top discharge type condensing unit(s), with R-410-A Refrigerant or

equivalent, vibration Isolators with suitable foundation etc. complete as required. To have better efficiency

condenser fan shall be capable to operate at different speed with respect to load. The unit shall deliver the rated

capacity and in confirmation as per IS 18728:2024 and CPWD Specifications and work even at 50°C ambient

temperature without tripping. The system shall be able to deliver 100% of the rated capacity upto 39 Degree

7.3 Celcius.The unit shall be suitable to work on 400V +/- 10%, 3 Phase, 50Hz AC power supply and BMS

compatible. The unit shall be filled with first charge of the refrigerant and ready for use as required. The

condenser should be coated with a hydrophilic film to prevent water accumulation on the surface of the heat

exchanger, enhance water dispersion, and reduce the risk of degradation, thereby improving overall

performance and durability. The Indian Seasonal Energy Efficiency Ratio (ISEER) of the unit shall be as per

Energy Conservation and Sustainable Building Code (ECSBC) 2024 as below and complete as per CPWD

specification, connections, inter connections etc. as required. (For capacity 40 and 70 ISEER 7.6 for Super

ECSBC Building)

1.2 INDOOR UNIT

Supply, Installation, Testing and Commissioning of following minimum capacity 4 way Cassette Type Indoor

ceiling mounted unit equipped with synthetic washable media pre-filter, fan section with low noise fan

/dynamically balanced blower, multispeed motor, coil section with DX Copper coil, electronic expansion valve,

outer cabinet, drain pump, grill, necessary supports, vibration Isolation, Corded remote control etc., suitable for

operation on single phase 230 V ± 10%, 50Hz AC supply, complete, as required. The Indoor units must shut

7.6 down upon receiving a singal from the BMS System/Fire Signals. The system shall be capable to adjust air flow

as per room requirement in auto mode. The cooling capacity of indoor unit will be at air inlet conditions of 27

Degree C DB and 19 Degree C WB temperature. (Make will be same as of Outdoor)

Digitally signed by AMIT

2.0 Pipining and fitting

Supply, Installation, testing and commissioning including vaccumiazation and Nitrogen testing of following

nominal sizes of soft/hard drawn copper refrigerant piping for VRV/VRF system, complete with fittings, with

suitable adjustable ring type hanger supports, jointing/brazing including accessories, insulated with XPLE Class-

O tubular insulation/with Class-O closed cell elastometric nitrile rubber tubular sleeves sections of 19 mm thick

2.1 insulation as given below for Suction and Liquid lines, all accessories as per specifications etc. as required :

2.1.1 7.14.1 6.4 mm dia (OD) (Soft drawn) with tube thickness 1.2 mm with 13 mmthick insulation Rmt 150 256 38,400.00

2.1.2 7.14.2 9.5 mm dia (OD) (Soft drawn) with tube thickness 1.2 mm with 13 mmthick insulation Rmt 100 346 34,600.00

2.1.3 7.14.3 12.7 mm dia (OD) (Soft drawn) with tube thickness 1.2 mm with 13 mmthick insulation Rmt 100 487 48,700.00

2.1.7 7.14.4 15.86 mm dia (OD) (Soft drawn) with tube thickness 1.2 mm with 13mm thick insulation Rmt 200 615 1,23,000.00

2.1.5 7.14.5 19 mm dia (OD) (Hard drawn) with tube thickness 1.2 mm with 13 mmthick insulation Rmt 75 739 55,425.00

2.1.6 7.14.6 22.2 mm dia (OD) (Hard drawn) with tube thickness 1.2 mm with 13 mmthick insulation Rmt 50 904 45,200.00

2.1.7 7.14.8 28.58 mm dia (OD) (Hard drawn) with tube thickness 1.2 mm with 19mm thick insulation Rmt 200 1,157 2,31,400.00

2.1.8 7.14.10 34.9 mm dia (OD) (Hard drawn) with tube thickness 1.2 mm with 19mm thick insulation Rmt 15 1,286 19,290.00

2.1.9 7.14.12 41.27 mm dia (OD) (Hard drawn) with tube thickness 1.62 mm with 19 mm thick insulation Rmt 30 1,368 41,040.00

2.2 Drain Piping

Supply, Installation, Testing and Commissioning of PVC pipes cut to required lengths and installed for condensate

drain. Quoted price shall be inclusive of supply and fixing in position the necessary fittings like elbows, tees

reducers etc. and supporting arrangement in accordance with the approved shop drawings and specifications.

Pipes shall be insulated with 6mm thick closed cell elastomeric insulation in tubing form . Pipes shall be of

following sizes :

MR Supply, Installation, Testing and Commissioning of control cum transmission wiring of 2 corex1.25 sq mm copper Rmt 495 225

2.5 SITC of GSS Cable tray with nut bolt and supports.

2.9 UNDERDECK INSULATION - FOR EXPOSED ROOF

Supply, Installation & Testing o f TPN ELCB of 300 mA isolator i n weather proof enclosure near

outdoor unit. Amp

2.10 Supply, Installation & Testing of SPN MCB of for indoor unit.

Digitally signed by AMIT

2.11 MR Electrical panel modification/ new panel for VRV ODU complete in all respect. Nos. 1.00 2,50,000.00 250000

Dismantling/ space provision for on existing ceiling as per requirements and repair/ installation of new Lot 1.00

MR ceiling as earlier making it as original after instllation of VRV unit and work, complete in all respect. 1,95,500.00

Shaft core-cut for copper pipe and connections. Cutting of MS plate wherever required. Preparation of Lot 1.00

MR drawing based on heat mass index and requirement of the premises and get it approved from NSL. 1,25,500.00

Digitally signed by AMIT