Construction of Critical Care Block at GH Pathanamthitta HVAC Works

OD10651/2026-2027:Supply, installation, testing and commissioning (SITC) of the following minimum capacity Air cooled VRF (Variable Refrigerant Flow) Outdoor unit with variable speed inverter driven multiple compressors complete with suitable capacity drive motors conforming to IE3 as per IS 12615, air cooled condenser, R410A/R407C refrigerant, oil separator, with all accessories, and safety devices like thermal protector, pressure relief valve, high low pressure cut off etc . Necessary structural supports, ODU vibration isolators shall be considered . Equipment shall be suitable for 3 phase, 415 V, 50Hz supply along with suitably rated starter panel & associated accessories, suitable interconnecting control cabling between IDUs, ODUs ,power cabling between isolator and single/multiple outdoor units along with associated electrical accessories. Required supports including structural supports /RCC/ cement concrete foundation shall be included as part of equipment . COP at AHRI conditions shall not be less than 3.1 and IEER not less than 6.5. The efficiency of the equipment shall meet ECBC/ASHRAE latest standards etc. complete in all respects as per the technical specifications.(single feeder power source will be provided for outdoor units). 38 HP

OD10664/2026-2027:Supply, installation, testing and commissioning (SITC) of VRF-compatible Air Handling Unit (AHU) of specified capacity, complete with AHU kit suitable for integration with VRF system, factory/field-mounted Variable Frequency Drive (VFD) of suitable rating, starter panel, associated controls, thermostat, temperature sensors and electrical controller for UV system, complete with all standard fittings, including double-skin construction casing with pre-painted GI/aluminium panels and PUF insulation, thermal break profile, structural base frame, access doors, vibration isolation arrangement and flexible duct connectors; belt drive/plug centrifugal fan statically and dynamically balanced, driven by TEFC, squirrel cage, 3-phase induction motor of suitable capacity and IE3 efficiency conforming to IS 12615, with suitable drive package and cushy-foot mounting; cooling coil of copper tube and aluminium fin construction compatible with refrigerant R410A/R407C, complete with headers, distributors, filter drier and first charge of refrigerant gas;multi-stage air filtration system comprising Filter Bed-1 of ISO Coarse 60% efficiency pre-filters and Filter Bed-2 of ISO ePM2.5 80% efficiency fine filters conforming to ISO 16890, complete with filter housings, holding frames, proper sealing arrangements, access doors and all necessary accessories for maintenance and replacement; UVGI system comprising UV emitters with reflectors mounted on coil surface using removable extruded aluminium frames with minimum intensity of 12 W per sq.ft. of coil surface area, ensuring uniform distribution of UV intensity across the coil surface, including safety interlocks and control system; stainless steel (SS) drain pan with proper slope connected to PVC drain piping (up to 5 m) insulated with 9 mm thick nitrile rubber insulation, finished with 7 mil woven fibreglass cloth and fungicidal protective coating, including U-trap, necessary elbows, fittings and accessories; outlet volume control dampers, complete power and control wiring, control cabling, cabling from power supply point, earthing, interconnections, and all necessary accessories, supports, fasteners, and consumables; including complete installation, alignment, testing, balancing, and commissioning to achieve specified performance parameters, all in accordance with approved technical specifications and relevant standards such as ASHRAE/NBCS/ISO, complete in all respects. 25TR (10000 CFM) - 50 mm of WG ESP

OD25879/2026-2027:Supply, Installation ,testing and commissioning of following minimum capacity Double skin, sheet metal VRF compactable Ceiling Suspended Unit including AHU kit, all accessories as required as per technical specifications complete with outlet volume control dampers, canvas connections, UVGI system comprising UV Emitters with reflectors to be fixed on the coil surface with removable extruded aluminium frames. UV emitters shall be minimum 12watt/sq.ft. of coil surface area for equal distribution,Air filtration shall be provided in a two-stage arrangement comprising Filter Bed-1 of ISO Coarse 60% efficiency filters and Filter Bed-2 of ISO ePM2.5 80% efficiency filters conforming to ISO 16890, complete with filter housings, holding frames, sealing arrangements and all necessary accessories, cooling coil of copper tube and aluminium fin construction, drier, first charge refrigerant gas of R410A/407C, IDU SS drain pan, squirrel cage, TEFC, 3-Ph induction motor, belt drive/plug centrifugal fan, drive package and cushy-foot mounting, all housed inside housing of a double skin construction AHU with vibration isolation arrangement, power wiring and power/control cabling(indoor to outdoor),digital thermostat with required control wiring, required starter and starter panel , structural supports for fixing IDU, safety devices etc. the following minimum capacity and the cooling coil (min 4 rows), suitable for three phase 440V supply, complete in all respects as per technical specifications.(Minimum External Static Pressure 25 mmwc ). 4 TR- 1600 CFM - 25 mm of WG ESP

OD10688/2026-2027:Supply, installation, testing and commissioning (SITC) of refrigerant gas/liquid copper piping using hard drawn copper pipes of specified diameter (18 gauge or as per OEM requirement), complete with closed-cell elastomeric nitrile rubber (Class ?O?) insulation of suitable thickness with minimum R-value of 0.7 for pipe sizes >40 mm and 0.4 for ?40 mm, finished with 7 mil factory-laminated woven fibreglass cloth, with antimicrobial properties; including all fittings and accessories such as Refnet/Y-joints, bends, tees, reducers, supports, clamps, hangers, etc., as required.The scope includes routing, cutting, bending, brazing with silver alloy under nitrogen purging, installation as per OEM recommendations, including chasing, drilling, concealing, sleeve provision, sealing, and making good civil finishes.Refrigerant piping shall include filter drier and sight glass in liquid line wherever specified by OEM. Testing and commissioning shall include nitrogen pressure testing, leak testing, evacuation up to ?500 microns (or as per OEM), and vacuum holding test. The thickness of insulation shall be as per ECBC+ requirements or 19 mm thickness whichever is higher. Both gas and liquid lines shall be fully insulated with proper joint sealing to prevent condensation. The work shall be executed as per approved drawings, OEM guidelines, and relevant standards such as ASHRAE, complete in all respects as per technical specification. NOTE: The contractor shall ensure that all refrigerant pipe sizes required as per the design and OEM selection are included in the respective line items, even if specific sizes are not explicitly mentioned. The work shall be complete in all respects as per technical specifications. Pipe Size: ( 1 3/4") 44.45 mm

OD10690/2026-2027:Supply, installation, testing and commissioning (SITC) of refrigerant gas/liquid copper piping using hard drawn copper pipes of specified diameter (18 gauge or as per OEM requirement), complete with closed-cell elastomeric nitrile rubber (Class ?O?) insulation of suitable thickness with minimum R-value of 0.7 for pipe sizes >40 mm and 0.4 for ?40 mm, finished with 7 mil factory-laminated woven fibreglass cloth, with antimicrobial properties; including all fittings and accessories such as Refnet/Y-joints, bends, tees, reducers, supports, clamps, hangers, etc., as required.The scope includes routing, cutting, bending, brazing with silver alloy under nitrogen purging, installation as per OEM recommendations, including chasing, drilling, concealing, sleeve provision, sealing, and making good civil finishes.Refrigerant piping shall include filter drier and sight glass in liquid line wherever specified by OEM. Testing and commissioning shall include nitrogen pressure testing, leak testing, evacuation up to ?500 microns (or as per OEM), and vacuum holding test. The thickness of insulation shall be as per ECBC+ requirements or 19 mm thickness whichever is higher. Both gas and liquid lines shall be fully insulated with proper joint sealing to prevent condensation. The work shall be executed as per approved drawings, OEM guidelines, and relevant standards such as ASHRAE, complete in all respects as per technical specification. NOTE: The contractor shall ensure that all refrigerant pipe sizes required as per the design and OEM selection are included in the respective line items, even if specific sizes are not explicitly mentioned. The work shall be complete in all respects as per technical specifications. Pipe Size: ( 1 5/8") 41.275 mm

OD10708/2026-2027:Supply, installation, testing and commissioning (SITC) of refrigerant gas/liquid copper piping using hard drawn copper pipes of specified diameter (18 gauge or as per OEM requirement), complete with closed-cell elastomeric nitrile rubber (Class ?O?) insulation of suitable thickness with minimum R-value of 0.7 for pipe sizes >40 mm and 0.4 for ?40 mm, finished with 7 mil factory-laminated woven fibreglass cloth, with antimicrobial properties; including all fittings and accessories such as Refnet/Y-joints, bends, tees, reducers, supports, clamps, hangers, etc., as required.The scope includes routing, cutting, bending, brazing with silver alloy under nitrogen purging, installation as per OEM recommendations, including chasing, drilling, concealing, sleeve provision, sealing, and making good civil finishes.Refrigerant piping shall include filter drier and sight glass in liquid line wherever specified by OEM. Testing and commissioning shall include nitrogen pressure testing, leak testing, evacuation up to ?500 microns (or as per OEM), and vacuum holding test. The thickness of insulation shall be as per ECBC+ requirements or 19 mm thickness whichever is higher. Both gas and liquid lines shall be fully insulated with proper joint sealing to prevent condensation. The work shall be executed as per approved drawings, OEM guidelines, and relevant standards such as ASHRAE, complete in all respects as per technical specification. NOTE: The contractor shall ensure that all refrigerant pipe sizes required as per the design and OEM selection are included in the respective line items, even if specific sizes are not explicitly mentioned. The work shall be complete in all respects as per technical specifications. ( 1 1/2") 38.10 mm

OD10712/2026-2027:Supply, installation, testing and commissioning (SITC) of refrigerant gas/liquid copper piping using hard drawn copper pipes of specified diameter (18 gauge or as per OEM requirement), complete with closed-cell elastomeric nitrile rubber (Class ?O?) insulation of suitable thickness with minimum R-value of 0.7 for pipe sizes >40 mm and 0.4 for ?40 mm, finished with 7 mil factory-laminated woven fibreglass cloth, with antimicrobial properties; including all fittings and accessories such as Refnet/Y-joints, bends, tees, reducers, supports, clamps, hangers, etc., as required.The scope includes routing, cutting, bending, brazing with silver alloy under nitrogen purging, installation as per OEM recommendations, including chasing, drilling, concealing, sleeve provision, sealing, and making good civil finishes.Refrigerant piping shall include filter drier and sight glass in liquid line wherever specified by OEM. Testing and commissioning shall include nitrogen pressure testing, leak testing, evacuation up to ?500 microns (or as per OEM), and vacuum holding test. The thickness of insulation shall be as per ECBC+ requirements or 19 mm thickness whichever is higher. Both gas and liquid lines shall be fully insulated with proper joint sealing to prevent condensation. The work shall be executed as per approved drawings, OEM guidelines, and relevant standards such as ASHRAE, complete in all respects as per technical specification. NOTE: The contractor shall ensure that all refrigerant pipe sizes required as per the design and OEM selection are included in the respective line items, even if specific sizes are not explicitly mentioned. The work shall be complete in all respects as per technical specifications. Pipe Size: ( 1 3/8") 34.925 mm

OD10767/2026-2027:Supply, installation, testing and commissioning (SITC) of refrigerant gas/liquid copper piping using hard drawn copper pipes of specified diameter (18 gauge or as per OEM requirement), complete with closed-cell elastomeric nitrile rubber (Class ?O?) insulation of suitable thickness with minimum R-value of 0.7 for pipe sizes >40 mm and 0.4 for ?40 mm, finished with 7 mil factory-laminated woven fibreglass cloth, with antimicrobial properties; including all fittings and accessories such as Refnet/Y-joints, bends, tees, reducers, supports, clamps, hangers, etc., as required.The scope includes routing, cutting, bending, brazing with silver alloy under nitrogen purging, installation as per OEM recommendations, including chasing, drilling, concealing, sleeve provision, sealing, and making good civil finishes.Refrigerant piping shall include filter drier and sight glass in liquid line wherever specified by OEM. Testing and commissioning shall include nitrogen pressure testing, leak testing, evacuation up to ?500 microns (or as per OEM), and vacuum holding test. The thickness of insulation shall be as per ECBC+ requirements or 19 mm thickness whichever is higher. Both gas and liquid lines shall be fully insulated with proper joint sealing to prevent condensation. The work shall be executed as per approved drawings, OEM guidelines, and relevant standards such as ASHRAE, complete in all respects as per technical specification. NOTE: The contractor shall ensure that all refrigerant pipe sizes required as per the design and OEM selection are included in the respective line items, even if specific sizes are not explicitly mentioned. The work shall be complete in all respects as per technical specifications. Pipe Size: ( 1 1/4") 31.75 mm

OD10748/2026-2027:Supply, installation, testing and commissioning (SITC) of refrigerant gas/liquid copper piping using hard drawn copper pipes of specified diameter (18 gauge or as per OEM requirement), complete with closed-cell elastomeric nitrile rubber (Class ?O?) insulation of suitable thickness with minimum R-value of 0.7 for pipe sizes >40 mm and 0.4 for ?40 mm, finished with 7 mil factory-laminated woven fibreglass cloth, with antimicrobial properties; including all fittings and accessories such as Refnet/Y-joints, bends, tees, reducers, supports, clamps, hangers, etc., as required.The scope includes routing, cutting, bending, brazing with silver alloy under nitrogen purging, installation as per OEM recommendations, including chasing, drilling, concealing, sleeve provision, sealing, and making good civil finishes.Refrigerant piping shall include filter drier and sight glass in liquid line wherever specified by OEM. Testing and commissioning shall include nitrogen pressure testing, leak testing, evacuation up to ?500 microns (or as per OEM), and vacuum holding test. The thickness of insulation shall be as per ECBC+ requirements or 19 mm thickness whichever is higher. Both gas and liquid lines shall be fully insulated with proper joint sealing to prevent condensation. The work shall be executed as per approved drawings, OEM guidelines, and relevant standards such as ASHRAE, complete in all respects as per technical specification. NOTE: The contractor shall ensure that all refrigerant pipe sizes required as per the design and OEM selection are included in the respective line items, even if specific sizes are not explicitly mentioned. The work shall be complete in all respects as per technical specifications. Pipe Size: ( 1 1/8") 28.575 mm