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| 1 | 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 seperate 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 condensor 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 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 KW ISEER 6.4, Capacity > 40 and <70 ISEER 6.5, Capacity ≥70 ISEER 6.6 for ECSBC+ Building) For Cooling or Heating or Both(DSR 2025 S.N:-31.2.3)A) 14 HP to 22 HP |
| 2 | Supplying, 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 DXCopper 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, asrequired. The Indoor units must shut down upon receivinga singal from the BMS System/Fire Singnals. 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 0C DB and 19 0C WB temperature.(Make will be same as of Outdoor)(DSR 2025 S.N:-31.4.8 )a)3.6 TR |
| 3 | COPPER REFRIGERANT PIPINGSupplying, 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 insulation as given below for Suction and Liquid lines, all accessories as per specifications etc. as required : (DSR 2025 S.N:-31.14 )a) 12.7 mm dia (OD) (Soft drawn) with tube thickness 1.2 mm |
| 4 | 15.86 mm dia (OD) (Soft drawn) with tube thickness 1.2mm |
| 5 | 19 mm dia (OD) (Hard drawn) with tube thickness 1.2 mm |
| 6 | 22.2 mm dia (OD) (Hard drawn) with tube thickness 1.2mm |
| 7 | Supplying, Installation, Testing and Commissioning of Y/T/Multi Joints. Joints shall be of same Original Equipment Manufacturer (OEM) make as of ODUs and IDUs (DSR 2025 S.N:-31.13 )a) Indoor Units |
| 8 | b) Outdoor Multi Joint |
| 9 | Providing of anti corrision coating on existing ODU unit copmlete for weather protection on exposed copper pipe as per OEM specifications. |
| 10 | Supplying and laying of FRLS PVC Insulated Copper Conductor, Shielded Multi Core transmission cum control cable compatible for BMS system in the existing surface/recessed PVC conduit for looping & communication between Indoor unit & Outdoor unit of VRF system complete etc. as required.3x1.5 sqmm. |
| 11 | Supplying and Fixing of following sizes ofPVC Drain duly insulated with 6/ 9mm thick nitrile insulation complete with all support and clamps as required, on existing surface / wall complete as per site requirement complete with all acessories like bends, sockets, tee as per site requirement25mm dia |
| 12 | 32mm dia |
| 13 | Supplying and installaton following size of perforated painted with powder coating M.S. cable trays with perforation not more than 17.5%, in convenient sections, joined with connectors, suspended from the ceiling with two numbers MS/GI Suspenders i/c base of suitable size MS/GI angle, bolts & nuts, painting suspenders, fastener etc as required. (DSR 2025 No.4.1)a)150 mm width X 50 mm depth X 1.6 mm thickness |
| 14 | Supplying and fixing of following sizes of medium class PVC conduit along with accessories in surface/recess including cutting the wall and making good the same in case of recessed conduit as required. A) 25 mm(DSR 2025 No. 1.21) |
| 15 | A) 32 mm(DSR 2025 No. 1.22) |
| 16 | Supplying of following sizes of multicore aluminum conductor XLPE insulated armoured cable 1.1 KV grade confirming to IS:7098 (Part-I) complete with all amendments etc as required:-3.5 C x 25 Sqmm |
| 17 | 3.5 C x 95 Sqmm |
| 18 | Providing of 6 SWG dia G.I. wire on surface or in recess for loop earthing along with existing surface/ recessed conduit/ submain wiring/cable as required. DSR 2025 No. 5.16) |
| 19 | Providing and fixing of weather proof isolator near the outdoor unit with 63 A TPN MCB with weather proof box i/c connection testing etc. as required. |
| 20 | Topping of Gas (R-410) in VRF System i/c connection testing etc. as required. |
| 21 | Laying and fixing of one number OVC insulated and PVC sheathed / XLPE power cable of 1.1 KV grade of following size on cable tray as required.Up to 35 Sq. mm (clamped with 1 mm thick saddle) (DSR)(DSR 2025 No. 10.8.1) |
| 22 | Supply and laying on surface of Power cable of following sizes XLPE insulated Copper conductor flexible cable with misc. accessories like Cable Ties, Saddles, Cable Tags at both ends of cbale including cost of thimbles/lugs, Double compression nickel plated brass glands, cables sockets, insulation tape and crimping etc. complete as required.3C x 2.5 sqmm |
