Tender For Supply, Installation, Testing And Commissioning Of Vrv/Vrf Type Air Conditioning System For The Proposed Renovation Of Health Centre Building At Csir–Cecri, Karaikudi, Sivagangai District, Tamil Nadu State.; 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 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 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 kWr ISEER 7.4, Capacity > 40 and <70 ISEER 7.5, Capacity > 70 ISEER 7.6 for Super ECSBC Building)- For cooling only 2 Refrigerant suction/Liquid line tapping including Pressure testing, vaccummissing of the VRV/VRF system complete as per specifications etc. as required. The outdoor unit shall be installed on open terrace of the ground floor of health centre building and shall be provided with mounting base and anti-vibration mounting on the existing pedestal concrete/PCC foundation 3 32 HP VRV/VRF ODU Unit (16HP ODU + 16HP ODU) 4 INDOOR UNIT – FOUR WAY CASSETTE AC 5 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 DX copper coil, electronic expansion valve, outer cabinet, drain pump, grill, necessary supports, vibration Isolation, decorative panels, occupancy sensors, Corded remote control etc., suitable for operation on single phase 230 V ± 10%, 50Hz AC supply, complete, as required. The Indoor units must shut 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) 6 The 4 way Cassette cassette-type air conditioning indoor unit shall be supplied with an integrated sensor system, including motion/occupancy/floor sensors, all factory-mounted within the indoor unit and fully compatible with the controller. These sensors shall be capable of detecting the presence, absence, and activity level of occupants in the room, thereby enabling intelligent control of the system for enhanced comfort and energy-saving performance. The unit shall also have a factory-provided provision for fresh air intake, such as a dedicated knock-out port or box or inbuilt hole, suitable for direct connection of a fresh air intake duct box / Pipe. This feature shall allow the introduction of outdoor air directly into the indoor space without generating noise or affecting occupant comfort. Note: All required accessories, including fixing materials, gasketing, sealing compounds, and integration components, shall be provided and installed as part of this scope to ensure proper connection and airtight operation of the fresh air system. 7 1.6 TR -Four way Cassette Type Indoor ceiling mounted unit (Round Flow) 8 2.0 TR -Four way Cassette Type Indoor ceiling mounted unit (Round Flow) 9 Supply, Installation, Testing and Commissioning of following minimum capacity 4 way compact VRV/VRF 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, decorative panels, Corded remote control etc., suitable for operation on single phase 230 V ± 10%, 50Hz AC supply, complete, as required. The Indoor units must shut down upon receiving a singal from the BMS System/Fire Signals. The system shall be capable to adjust air flow as per room requirement automatically. 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) 10 The unit shall also have a factory-provided provision for fresh air intake, such as a dedicated knock-out port or box or inbuilt hole, suitable for direct connection of a fresh air intake duct box / Pipe. This feature shall allow the introduction of outdoor air directly into the indoor space without generating noise or affecting occupant comfort. Note: All required accessories, including fixing materials, gasketing, sealing compounds, and integration components, shall be provided and installed as part of this scope to ensure proper connection and airtight operation of the fresh air system. 11 1.0 TR - Four way compact Cassette Type Indoor ceiling mounted unit 12 1.6 TR - Four way compact Cassette Type Indoor ceiling mounted unit 13 COPPER REFRIGERANT PIPING 14 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 elastomeric 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 15 Copper Pipe laying outside should be properly supported with perforated GI cable trays with closing cover and covered arrangements as part of this scope from outdoor to indoor as required at site. Additionally, the copper pipes must be wrapped with fiberglass insulation tape and coated with UV-resistant paint. 16 The size of refrigerant pipes shown below are tentative. The required size of pipe shall be designed by the vendor as per the manufacturers recommendations. 17 6.4 mm dia (OD) (Soft drawn) with tube thickness 1.2 mm with 19 mm thick insulation 18 9.5 mm dia (OD) (Soft drawn) with tube thickness 1.2 mm with 19 mm thick insulation 19 12.7 mm dia (OD) (Soft drawn) with tube thickness 1.2 mm with 19 mm thick insulation 20 15.86 mm dia (OD) (Soft drawn) with tube thickness 1.2 mm with 19 mm thick insulation 21 19 mm dia (OD) (Hard drawn) with tube thickness 1.2 mm with 19 mm thick insulation 22 22.2 mm dia (OD) (Hard drawn) with tube thickness 1.2 mm with 19 mm thick insulation 23 25.4 mm dia (OD) (Hard drawn) with tube thickness 1.2 mm with 19 mm thick insulation 24 28.58 mm dia (OD) (Hard drawn) with tube thickness 1.2 mm with 19 mm thick insulation 25 31.8 mm dia (OD) (Hard drawn) with tube thickness 1.62 mm with 19 mm thick insulation 26 34.9 mm dia (OD) (Hard drawn) with tube thickness 1.62 mm with 19 mm thick insulation 27 REFNUTS / Y JOINTS / SEPARATION TUBES 28 Supply, Installation, Testing and Commissioning of Y/T/Multi Joints. Joints shall be of same Original Equipment Manufacturer (OEM) make as of ODUs and IDUs 29 Indoor units 30 Outdoor multi joint 31 ELECTRICAL POWER CABLE / COMMUNICATION CABLE / ACCESSORIES 32 Supply, laying, dressing and testing of the following sizes of FRLS heavy duty PVC insulated round sheathed flexible copper conductor cable (I.S.I) of the following sizes for power connection from plug socket/MCB board to each indoor & control cum communication transmission screened shielded wiring from outdoor to indoor unit and wired remote controllers covered with PVC conduit / perforated cable tray / mini trunking pipe to be laid on wall / RCC ceiling / cross beams including cutting, drilling the wall where ever required and making good the same, supporting, andClamping etc. Duly industrial cable for voltage grade Upto: 1.1KV as per 694:2010 as required. (The size of the cable will be as per the OEMs recommendation) 33 3 core x 2.5 sqmm ISI market FRLS PVC insulated copper conductor cable with PVC conduitaccessories 34 2 core/3 core x 1.5 sqmm ISI market FRLS PVC insulated Screened shielded Communication Cable with PVC conduit and accessories 35 16 A - 3 pin Plugtop with indicator (Heavy duty) 36 Supply and laying4 core x 10 sqmm FRLS heavy duty XLPE insulated armoured copper conductor industrial power cable(I.S.I) from Main MCB to VRF outdoor unit covered with PVC conduit / perforated cable tray / mini trunking pipe to be laid on wall / RCC ceiling / cross beams including cutting,drilling the wall wherever required and making good the same,includingsupporting, andclamping etc as required at site. Duly industrial cable for voltage grade Upto: 1.1KV as per 7098-1 :1998 as required. 37 Providing and fixing 4.00 mm dia(8 SWG)copper wire on surface or in recess for loop earthing on existing surface/cable tray from main power panel to outdoor units as required 38 FRESH AIR INTAKE SYSTEM PIPE & ACCESSORIES Supply, installation, testing, and commissioning of complete fresh air intake system for four-way cassette AC unit, consisting of 100 mm (4) diameter PVC/uPVC comprising of the following components: weatherproof outer cowl made of SUS304/SS304 stainless steel with bird screen mesh; inline airflow volume control valve (plastic butterfly type) for manual regulation or shut-off;and inline pre-filter box made of durable ABS or PVC housing with easily removable and washable synthetic filter media. The entire unit shall be factory-finished, corrosion-resistant, and connected to the fresh air duct using appropriate adaptors, sealants with air tight, and fasteners. All components shall be equivalent or reputed makes such as Astberg Ventilation/desertcard.in/similar and shall be installed as per standard HVAC practices. 39 Supply and installation of 100 mm dia PVC/uPVC Class 3 (6 Kg/cm2) fresh air pipe, ISI-marked, joined with solvent cement, complete with required bends, hanging clamp, elbows, brackets, and clamps and weather protecction coating outside area with all the accessories and laid complete as per site condition. 40 Fresh air duct Outer Cowl made of SUS304/SS304 grade stainless steel with bird screen mesh - Diameter 100 mm (4) suitable for direct connection with PVC/uPVC pipe with all the accessories (equivalent or similar to makes of Astberg Ventilation) 41 Fresh air duct inline manual volume control damper (butterfly valve), diameter 100 mm (4), constructed from high-quality PVC/uPVC plastic housing, suitable for direct connection with 100 mm PVC/uPVC pipe with all the accessories. (equivalent or similar to makes of Astberg Ventilation) 42 Fresh air duct inline pre-filter box, diameter 100 mm (4), constructed of ABS / PVC / uPVC housing with easily removable and washable synthetic filter media, suitable for direct connection with 100 mm PVC/uPVC Pipe with all the accessories. (equivalent or similar to makes of Astberg Ventilation) 43 OTHER MISCELLANEOUS WORK 44 Supplying, and laying of following dia rigid Heavy duty uPVC drain Water pipingcomplete with accessories (elbows, tees, reducers, sockets, u-trap etc.) Supports, insulated with XPLE Class - O tubular insulation/with Class-O closed cell elastomeric nitrile rubber tubular sleeves sections of specified thickness etc. complete as required. (The size of the water drain pipe will be as per the OEMs recommendation) 45 25 mm dia rigid uPVC pipe with 13 mm thick insulation and accessories 46 32 mm dia rigid uPVC pipe with 13 mm thick insulation and accessories 47 40 mm dia rigid uPVC pipe with 13 mm thick insulation and accessories 48 Supply and charging of additional refrigerant gas R410A as complete required 49 Supplying and installing following size of perforated Hot Dipped Galvanized Iron cable tray (galvanization thickness not less than 50 microns) with perforation not more than 17.5%, in convenient sections, joined with connectors, closing covers, bend, reducers,Tee joints, Placing on terrace/side wall suspended from the ceiling with or supported from floor/wall G.I. suspenders including G.I. bolts & nuts, etc. as required. 50 300 mm width X 100 mm depth X 2.0 mm thickness - Cable tray with closing cover 51 300 mm width X 100 mm depth X 2.0 mm thickness - Cable tray Tee with closing cover 52 300 mm width X 62.5 mm depth X 2.0 mm thickness - Cable tray with closing cover 53 225 mm width X 50 mm depth X 1.6 mm thickness - Cable tray with closing cover 54 Lifting, Shifting, Positioning of VRF Outdoor/indoor Units (ODU placing on the terrace of ground floor building) including handling using crane/manpower, placementover the anti vibration mounting pads fixed on MS rails or existing pedestal, anchoring with bolts & nuts, leveling, necessary scaffolding arrangements, and all safety measures as required at site. 55 Lifting, Shifting, Positioning of VRV/VRF Outdoor unit - 32 HP ODU unit (16 HP ODU + 16 HP ODU) 56 Lifting, Shifting, Positioning of VRV/VRF based 1.0 TR/1.6 TR/2.0 TR Cassette type IDU Unit 57 Supply, installation, testing, and commissioning of Touch-Type wired Remote Controller suitable for VRV/VRF-based four way cassette indoor units. The controller shall be sleek and user-friendly with an aesthetic front panel, having a clear touch interface for intuitive operation. It shall support group control of multiple indoor units, timer-based scheduling, mode setting, and temperature control. Complete with all wiring, accessories, connectors, and as required for proper functioning. 58 Minor civil works such as making holes/cuttings in walls, slabs, or partitions for laying copper piping, electrical cables, and drain piping, etc., including plastering, finishing, and painting to match the original surface. All labour, materials, tools, scaffolding, and disposal of debris included. The works shall be executed in a neat workmanlike manner as required. 59 Comprehensive Annual Maintenance Contract (CAMC) charges per year for VRV/VRF AC System (Inverter model), covering complete system including indoor units (Four-way cassette type), labour, preventive maintenance, breakdown service, necessary spares, consumables, IDU & ODU PCBs, and refrigerant gas refilling, etc,. as required. 60 CAMC for 1st year - 32 HP 61 CAMC for 2nd year - 32 HP 62 CAMC for 3rd year - 32 HP 63 CAMC for 4th year - 32 HP 64 CAMC for 5th year - 32 HP
