Supply Installation Testing and Commissioning of HVAC System

HVAC Work Abstract

Supplying and erecting mains with 2x1.5 sq.mm FRLSH copper PVC insulated wire laid in provided conduit/trunking/inside pole/Bus bars or any other places as per specification No: WG-MA/BW

Supplying, installing, testing & commissioning cassette type variable speed inverter technology with minimum 3 to 1 convertible mode for compressor room air conditioning unit 1.3TR to 1.7TR capacity having ISEER minimum 5.00 suitable to operate on 250V, 50 Hz, A.C. supply having 1 no of air handling unit hi-wall/floor mounting type complete with refrigerant R32/R410A having copper condenser, dust filter, self diagnosis feature, stabilizer free operation, noise level maximum 50dBA at position as per specification no. APAC/ WAC

Supplying, erecting, testing and commissioning of 12HP, VRF/VRV air conditioning system outdoor unit (ODU) complies type-IV OEM standards working on HFC refrigerant R410A or other required/suitable green equivalent refrigerant, for minimum cooling capacity as delivering 100% capacity at 47° C, non stop cooling even at 56° C and coefficient of performance (COP) 3.00 to 4.00, modular type vertical hot air discharge suitable for longer piping range upto 1000m operation in cooling mode with inverter/digital VRF/VRV technology microprocessor based control compressor starter/control panel with scroll compressor, air cooled copper condenser coil of suitable shape for increasing maximum heat transfer area, rain protection cover, built in oil separator, accumulator and oil receiver, copper tube aluminium fin air cooled condenser, condenser fan with motor suitable for 415V±10%, 50 Hz, 3 phase power supply (all suitable for high ambient conditions), internal copper refrigerant piping, internal wiring and refrigerant, etc. all housed in powder coated weather proof cabinet complete.

Supplying, erecting, testing and commissioning of 14HP, VRF/VRV air conditioning system outdoor unit (ODU) complies type-IV OEM standards working on HFC refrigerant R410A or other required/suitable green equivalent refrigerant, for minimum cooling capacity as delivering 100% capacity at 47° C, non stop cooling even at 56° C and coefficient of performance (COP) 3.00 to 4.00, modular type vertical hot air discharge suitable for longer piping range upto 1000 metre operation in cooling mode with inverter/digital VRF/VRV technology microprocessor based control compressor starter/control panel with scroll compressor, air cooled copper condenser coil of suitable shape for increasing maximum heat transfer area, rain protection cover, built in oil separator, accumulator and oil receiver, copper tube aluminium fin air cooled condenser, condenser fan with motor suitable for 415V±10%, 50 Hz, 3 phase power supply (all suitable for high ambient conditions), internal copper refrigerant piping, internal wiring and refrigerant, etc. all housed in powder coated weather proof cabinet complete.

Supplying, erecting, testing and commissioning of 16HP, VRF/VRV air conditioning system outdoor unit (ODU) complies type-IV OEM standards working on HFC refrigerant R410A or other required/suitable green equivalent refrigerant, for minimum cooling capacity as delivering 100% capacity at 47° C, non stop cooling even at 56° C and coefficient of performance (COP) 3.00 to 4.00, modular type vertical hot air discharge suitable for longer piping range upto 1000 metre operation in cooling mode with inverter/digital VRF/VRV technology microprocessor based control compressor starter/control panel with scroll compressor, air cooled copper condenser coil of suitable shape for increasing maximum heat transfer area, rain protection cover, built in oil separator, accumulator and oil receiver, copper tube aluminium fin air cooled condenser, condenser fan with motor suitable for 415V±10%, 50 Hz, 3 phase power supply (all suitable for high ambient conditions), internal copper refrigerant piping, internal wiring and refrigerant, etc. all housed in powder coated weather proof cabinet complete.

Supplying, erecting, testing and commissioning of 18HP, VRF/VRV air conditioning system outdoor unit (ODU) complies type-IV OEM standards working on HFC refrigerant R410A or other required/suitable green equivalent refrigerant, for minimum cooling capacity as delivering 100% capacity at 47° C, non stop cooling even at 56° C and coefficient of performance (COP) 3.00 to 4.00, modular type vertical hot air discharge suitable for longer piping range upto 1000 metre operation in cooling mode with inverter/ digital VRF/VRV technology microprocessor based control compressor starter/control panel with scroll compressor, air cooled copper condenser coil of suitable shape for increasing maximum heat transfer area, rain protection cover, built in oil separator, accumulator and oil receiver, copper tube aluminium fin air cooled condenser, condenser fan with motor suitable for 415V±10%, 50 Hz, 3 phase power supply (all suitable for high ambient conditions), internal copper refrigerant piping, internal wiring and refrigerant, etc. all housed in powder coated weather proof cabinet complete.

Supplying, erecting, testing and commissioning of 20HP, VRF/VRV air conditioning system outdoor unit (ODU) complies type-IV OEM standards working on HFC refrigerant R410A or other required/suitable green equivalent refrigerant, for minimum cooling capacity as delivering 100% capacity at 47° C, non stop cooling even at 56°C and coefficient of performance (COP) 3.00 to 4.00, modular type vertical hot air discharge suitable for longer piping range upto 1000 metre operation in cooling mode with inverter/digital VRF/VRV technology microprocessor based control compressor starter/control panel with scroll compressor, air cooled copper condenser coil of suitable shape for increasing maximum heat transfer area, rain protection cover, built in oil separator, accumulator and oil receiver, copper tube aluminium fin air cooled condenser, condenser fan with motor suitable for 415V±10%, 50 Hz, 3 phase power supply (all suitable for high ambient conditions), internal copper refrigerant piping, internal wiring and refrigerant, etc. all housed in powder coated weather proof cabinet complete.

Supply, installation, testing and commissioning of VRF/VRV based ceiling suspended 4 Way cassette room/indoor unit (IDU-compact/standard size) of nominal cooling capacity 1.0TR ( 441 cfm ) to 1.3TR (512 cfm ) having EER as per BEE standards and specifications, suitable as per site requirement with swing louvers and adjustable blades from sides. IDU with drainage arrangements, fan, refrigerant liquid and refrigerant piping, cordless remote control, and fresh air port etc. IDU shall have anti corrosive coating suitable for coastal area in all respects suitable to operate on 1-phase, 230V, 50Hz, AC supply complete. The unit consisting with any additional refrigerant and oil charge as per requirement during installation.

Supply, installation, testing and commissioning of VRF/VRV based ceiling suspended 4 Way cassette room/indoor unit (IDU-compact/standard size) of nominal cooling capacity 1.5TR (512 cfm) to 1.8TR (618 cfm) having EER as per BEE standards and specifications, suitable as per site requirement with swing louvers and adjustable blades from sides. IDU with drainage arrangements, fan, refrigerant liquid and refrigerant piping, cordless remote control, and fresh air port etc. IDU shall have anti corrosive coating suitable for coastal area in all respects suitable to operate on 1-phase, 230V, 50Hz, AC supply complete. The unit consisting with any additional refrigerant and oil charge as per requirement during installation.

Supply, installation, testing and commissioning of VRF/VRV based ceiling suspended 4 Way cassette room/indoor unit (IDU-compact/standard size) of nominal cooling capacity 2.0TR (618 cfm) to 2.3TR (671 cfm) having EER as per BEE standards and specifications, suitable as per site requirement with swing louvers and adjustable blades from sides. IDU with drainage arrangements, fan, refrigerant liquid and refrigerant piping, cordless remote control, and fresh air port etc. IDU shall have anti corrosive coating suitable for coastal area in all respects suitable to operate on 1-phase, 230V, 50Hz, AC supply complete. The unit consisting with any additional refrigerant and oil charge as per requirement during installation.

Supply, installation, testing and commissioning of VRF/VRV based ceiling suspended 4 Way cassette room/indoor unit (IDU-compact / standard size) of nominal cooling capacity 2.6TR (918 cfm) to 2.8TR ( 1100 cfm ) having EER as per BEE standards and specifications, suitable as per site requirement with swing louvers and adjustable blades from sides. IDU with drainage arrangements, fan, refrigerant liquid and refrigerant piping, cordless remote control, and fresh air port etc. IDU shall have anti corrosive coating suitable for coastal area in all respects suitable to operate on 1-phase, 230V, 50Hz, AC supply complete. The unit consisting with any additional refrigerant and oil charge as per requirement during installation.

Supply, installation, testing and commissioning of VRF/VRV based ceiling suspended 4 Way cassette room/indoor unit (IDU-compact / standard size) of nominal cooling capacity 3.0TR (1100 cfm) to 3.2TR (1165 cfm) having EER as per BEE standards and specifications, suitable as per site requirement with swing louvers and adjustable blades from sides. IDU with drainage arrangements, fan, refrigerant liquid and refrigerant piping, cordless remote control, and fresh air port etc. IDU shall have anti corrosive coating suitable for coastal area in all respects suitable to operate on 1-phase, 230V, 50Hz, AC supply complete. The unit consisting with any additional refrigerant and oil charge as per requirement during installation.

Supply, installation, testing and commissioning of manually operated, opposed blade, duct mounted, flanged volume control dampers of required sizes in GI construction with operating mechanism, mounting arrangement, rubber refrigerant kits etc. complete.

Supply, fabrication, installation and testing of flexible canvas connections constructed between ductable unit/dampers/ducting of suitable size with fire resist flexible double canvas sleeve complete.

Supplying and installation of high pressure grade required size copper connection Y or T- Joints/refnet complete erected on wall/ceiling with supports/raceways, Nitrile rubber insulation, painting etc. with brazing and testing for leakages confirming the normal operation of the VRV/VRF air conditioning system.

Supplying, laying/fixing, testing and commissioning of appropriate nominal refrigerant copper pipe of 41.3mm dia (OD) for liquid line/suction line supply and return piping of suitable gauge (hard copper pipe for liquid main line and soft copper pipe for refrigerant) along with necessary supports, hangers, clamps, vibration isolators and fittings such as bends, tees, valves, gauges, strainers with insulation of 19mm thick elastomeric nitrile rubber along with application of multicoating of VRV/VRF piping for protection against mechanical damages, fungal growth, flame spread, water permeance and ultra violet radiations with OEM standards of VRV/VRF air conditioning system complete.

Supplying, laying/fixing, testing and commissioning of appropriate nominal refrigerant copper pipe of 34.9mm dia (OD) for liquid line/suction line supply and return piping of suitable gauge (hard copper pipe for liquid main line and soft copper pipe for refrigerant) along with necessary supports, hangers, clamps, vibration isolators and fittings such as bends, tees, valves, gauges, strainers with insulation of 19mm thick elastomeric nitrile rubber along with application of multicoating of VRV/VRF piping for protection against mechanical damages, fungal growth, flame spread, water permeance and ultra violet radiations with OEM standards of VRV/VRF air conditioning system complete.

supplying, laying/fixing, testing and commissioning of appropriate nominal refrigerant copper pipe of 28.6mm dia (OD) for liquid line/suction line supply and return piping of suitable gauge (hard copper pipe for liquid main line and soft copper pipe for refrigerant) along with necessary supports, hangers, clamps, vibration isolators and fittings such as bends, tees, valves, gauges, strainers with insulation of 19mm thick elastomeric nitrile rubber along with application of multicoating of VRV/VRF piping for protection against mechanical damages, fungal growth, flame spread, water permeance and ultra violet radiations with OEM standards of VRV/VRF air conditioning system complete.

supplying, laying/fixing, testing and commissioning of appropriate nominal refrigerant copper pipe of 22.2mm dia (OD) for liquid line/suction line supply and return piping of suitable gauge (hard copper pipe for liquid main line and soft copper pipe for refrigerant) along with necessary supports, hangers, clamps, vibration isolators and fittings such as bends, tees, valves, gauges, strainers with insulation of 19mm thick elastomeric nitrile rubber along with application of multicoating of VRV/VRF piping for protection against mechanical damages, fungal growth, flame spread, water permeance and ultraviolet radiation with OEM standards of VRV/VRF air conditioning system complete.

supplying, laying/fixing, testing and commissioning of appropriate nominal refrigerant copper pipe of 19.1mm dia (OD) for liquid line/suction line supply and return piping of suitable gauge (hard copper pipe for liquid main line and soft copper pipe for refrigerant) along with necessary supports, hangers, clamps, vibration isolators and fittings such as bends, tees, valves, gauges, strainers with insulation of 19 mm thick elastomeric nitrile rubber along with application of multicoating of VRV/VRF piping for protection against mechanical damages, fungal growth, flame spread, water permeance and ultraviolet radiations with OEM standards of VRV/VRF air conditioning system complete.

supplying, laying/fixing, testing and commissioning of appropriate nominal refrigerant copper pipe of 15.9 mm dia (OD) for liquid line/suction line supply and return piping of suitable gauge (hard copper pipe for liquid main line and soft copper pipe for refrigerant) along with necessary supports, hangers, clamps, vibration isolators and fittings such as bends, tees, valves, gauges, strainers with insulation of 19mm thick elastomeric nitrile rubber along with application of multicoating of VRV/VRF piping for protection against mechanical damages, fungal growth, flame spread, water permeance and ultraviolet radiations with OEM standards of VRV/VRF air conditioning system complete.

supplying, laying/fixing, testing and commissioning of appropriate nominal refrigerant copper pipe of 12.7mm dia (OD) for liquid line/suction line supply and return piping of suitable gauge (hard copper pipe for liquid main line and soft copper pipe for refrigerant) along with necessary supports, hangers, clamps, vibration isolators and fittings such as bends, tees, valves, gauges, strainers with insulation of 19mm thick elastomeric nitrile rubber along with application of multicoating of VRV/VRF piping for protection against mechanical damages, fungal growth, flame spread, water permeance and ultraviolet radiations with OEM standards of VRV/VRF air conditioning system complete

supplying, laying/fixing, testing and commissioning of appropriate nominal refrigerant copper pipe of 9.5 mm dia (OD) for liquid line/suction line supply and return piping of suitable gauge (hard copper pipe for liquid main line and soft copper pipe for refrigerant) along with necessary supports, hangers, clamps, vibration isolators and fittings such as bends, tees, valves, gauges, strainers with insulation of 19mm thick elastomeric nitrile rubber along with application of multicoating of VRV/VRF piping for protection against mechanical damages, fungal growth, flame spread, water permeance and ultraviolet radiations with OEM standards of VRV/VRF air conditioning system complete.

supplying, laying/fixing, testing and commissioning of appropriate nominal refrigerant copper pipe of 6.4mm dia (OD) for liquid line/suction line supply and return piping of suitable gauge (hard copper pipe for liquid main line and soft copper pipe for refrigerant) along with necessary supports, hangers, clamps, vibration isolators and fittings such as bends, tees, valves, gauges, strainers with insulation of 19mm thick elastomeric nitrile rubber along with application of multicoating of VRV/VRF piping for protection against mechanical damages, fungal growth, flame spread, water permeance and ultraviolet radiations with OEM standards of VRV/VRF air conditioning system complete.

Supplying and erecting elastomeric nitrile rubber / foam tube type sleeves for coating and insulating on provided PC / copper pipes having 9 mm thickness and inner diameter / sizes 9 mm for solar water heater/AC system.

Supplying and erecting 25/32 mm (ID/OD) Chlorinated polyvinyl chloride pipe (CPVC), thickness 3.2 mm conforming to IS 15778 (CTS Series) with necessary CPVC fittings and solvent cement for AC drain as per specification No. ESD-HWP/CPVC

Supplying and erecting 32/40 mm (ID/OD) Chlorinated polyvinyl chloride pipe (CPVC), thickness 3.8 mm conforming to IS 15778 (CTS Series) with necessary CPVC fittings and solvent cement for Solar Water Heater System as per specification No. ESD-HWP/CPVC

Supplying and erecting 40/50 mm (ID/OD) Chlorinated polyvinyl chloride pipe (CPVC), thickness 3.8 mm conforming to IS 15778 (CTS Series) with necessary CPVC fittings and solvent cement for AC drain as per specification No. ESD-HWP/CPVC

Supplying, fixing and commissioning 4 pole RCBO 32/40A, with overcurrent, rated short-circuit breaking capacity (10 kA) and earth leakage protection, with 30/100/300 mA sensitivity and short circuit and earth leakage trip indication as per specification no SW-RCCB/RCBO

Supplying, fixing and commissioning 4 pole RCBO 63A, with overcurrent, rated short-circuit breaking capacity (10 kA) and earth leakage protection, with 30/100/300 mA sensitivity and short circuit and earth leakage trip indication as per specification no SW-RCCB/RCBO

Supplying, erecting & terminating FR XLPE insulated, galvanised steel formed wire armoured (strip) cable 1100 V, 2 core 2.5 sq. mm. copper conductor complete erected with glands & lugs, on wall/ trusses/ pole or laid in provided trench/ pipe as per specification no. CB-LT/CU

Supplying, erecting & terminating FR XLPE insulated, galvanised steel formed wire armoured (strip) cable 1100 V, 3 core 2.5 sq. mm. copper conductor complete erected with glands & lugs, on wall/ trusses/ pole or laid in provided trench/ pipe as per specification no. CB-LT/CU

Supplying, erecting & terminating FR XLPE insulated, galvanised steel formed wire armoured (strip) cable 1100 V, 4 core 6 sq. mm. copper conductor complete erected with glands & lugs, on wall/ trusses/ pole or laid in provided trench/ pipe as per specification no. CB-LT/CU

Supplying, erecting & terminating FR XLPE insulated, galvanised steel formed wire armoured (strip) cable 1100 V, 4 core 10 sq. mm. copper conductor complete erected with glands & lugs, on wall/ trusses/ pole or laid in provided trench/ pipe as per specification no. CB-LT/CU

Providing & erecting Hot dipped galvanized perforated type cable tray manufactured from 16 swg (1.6 mm thick) GI sheet of 200 mm width & 75 mm height complete with necessary coupler plates & hardware in approved manner. Consider only for exposed refrigerant piping on terrace floor.

Supply, installation, balancing and commissioning of factory fabricated GSS sheet metal rectangular/round ducting complete with neoprene rubber gaskets, elbows, splitter dampers, vanes, hangers, supports etc. as per approved drawings and specifications of following sheet thickness complete as required. Thickness 0.63 mm sheet

Supply, installation, balancing and commissioning of factory fabricated GSS sheet metal rectangular/round ducting complete with neoprene rubber gaskets, elbows, splitter dampers, vanes, hangers, supports etc. as per approved drawings and specifications of following sheet thickness complete as required. Thickness 0.80 mm sheet

Supplying & fixing of powder coated extruded aluminium Supply Air Grills with aluminium volume control dampers as per specifications.

Supplying & fixing of powder coated extruded aluminium Return / Exhaust Air Grills with louvers but without volume control dampers complete as required.

Supply, installation, commissioning & testing of VENTILATION SYSTEMS in accordance with and meeting the intents 'of the specifications and data sheet Pump Room-EF-7000 CFM complete with: I)Smokespill Axial flow fan as specified in the data sheets or drawings. ii) Starter Panel as specified in Data Sheets iii) M S Mounting frame iv) Vibration mounts/Spring suspenders v) Canvas connection vi) Filter with necessary frame wherever necessary vii) Drive assembly and motor viii) Starter power cabling and earthing from starter to Fan Motor. ix) Terrace floor fans are to be with IP55 protection.

Supply, installation, commissioning & testing of VENTILATION SYSTEMS in accordance with and meeting the intents 'of the specifications and data sheet Pump Room-FA- 3000 CFM complete with: I)Axial flow fan as specified in the data sheets or drawings. ii) Starter Panel as specified in Data Sheets iii) M S Mounting frame iv) Vibration mounts/Spring suspenders v) Canvas connection vi) Filter with necessary frame wherever necessary vii) Drive assembly and motor viii) Starter power cabling and earthing from starter to Fan Motor. ix) Terrace floor fans are to be with IP55 protection.

Supply, installation, commissioning & testing of VENTILATION SYSTEMS in accordance with and meeting the intents 'of the specifications and data sheet Panel Room-EF -5000 CFM complete with: I)Smokespill Axial flow fan as specified in the data sheets or drawings. ii) Starter Panel as specified in Data Sheets iii) M S Mounting frame iv) Vibration mounts/Spring suspenders v) Canvas connection vi) Filter with necessary frame wherever necessary vii) Drive assembly and motor viii) Starter power cabling and earthing from starter to Fan Motor. ix) Terrace floor fans are to be with IP55 protection.

Supply, installation, commissioning & testing of VENTILATION SYSTEMS in accordance with and meeting the intents 'of the specifications and data sheet RESEARCH &TRAIL FACILITY Room-EF -3200 CFM complete with: I)Smokespill Axial flow fan as specified in the data sheets or drawings. ii) Starter Panel as specified in Data Sheets iii) M S Mounting frame iv) Vibration mounts/Spring suspenders v) Canvas connection vi) Filter with necessary frame wherever necessary vii) Drive assembly and motor viii) Starter power cabling and earthing from starter to Fan Motor. ix) Terrace floor fans are to be with IP55 protection.

Supply, installation, commissioning & testing of VENTILATION SYSTEMS in accordance with and meeting the intents 'of the specifications and data sheet Toilet- 500 / 650 CFM complete with: I)Inline Centrifugal fan as specified in the data sheets or drawings. ii) Starter Panel as specified in Data Sheets iii) M S Mounting frame iv) Vibration mounts/Spring suspenders v) Canvas connection vi) Filter with necessary frame wherever necessary vii) Drive assembly and motor viii) Starter power cabling and earthing from starter to Fan Motor. ix) Terrace floor fans are to be with IP55 protection.

Supply, installing, testing and commissioning of Jet fans with necessary supporting structure & vibration isolation. The complete fan assembly, casing, motor, impeller, with silencers at both ends shall be certified as tested for 250 Deg C for 2 hour operation, Potential free contact for on, off & trip, command & status for each fan, Potential free contact for auto & manual status for each fan as specified & All required accessories shall be as per mentined below. Noise @3m from unit: 70 dB. Thrust: 50 - 55 Nm Dia: 355mm Location: Basement Note - Capacity & size of jet fan may be changed according to final CFD analysis report.

Computational Fluid Dynamics (CFD) Analysis for smoke management system (CO/ Jet fans, exhaust fan, makeup air fan simulation) by using CFD software to model airflow caused by both air movement equipment and convection from heated surfaces.(Basement)

Supply, installing, testing and commissioning IAQ Sensors shall be designed to detect indoor air quality within the area in the air with sensing range between 0-2000 ppm with response time within 2 minutes as per technical specification and of approved make.

SITC of Ventilation Fan power panel complete with PLC, necessary potential free contacts & auxiliay contacts, control & power cabling, necessary protection switch gear & contactors, starters, indication lamp, copper buzz bar, panel enclosure suitable for IP 43 enclosure.

Supply, installation, testing and balancing of powder coated extruded aluminium Non return dampers as per specifications.

Supply, installation, testing and balancing of louvers for exhaust air as per specifications and approved drawings.

Precision A.C. Units with DX Coil, EC Motors & suitable for working with CFC free refrigerant (R407C / R410A) humidity control (with heaters & humidifier) The units shall consists of: (i) Condensing unit with reputed make hermetically sealed Scroll compressor, air cooled condenser having copper tubing with extended aluminum fins & condenser fan with adequate air flow capacity suitable for operation at ambient temp. of 45oC. (ii) Precision Indoor unit - False floor / Floor Mounted consisting of DX Cooling Coil comprising of 4 row DX-cooling coil, Blower with EC motor (IE4), filters, drain pan & casing. The evaporator shall be complete with expansion valve (Electronic/ Thermostatic type) & distributor arrangement. The unit shall be epoxy powder coated from outside with full acoustic insulation from inside. Each Machine shall have a motorised damper on RA side & interconnected with unit start-stop. (iii) Necessary charge of oil and refrigerant gas as required up to handing over the system. Cowl piece to ODU for proper ventilation in case required to be provided by PAC vendor & to be included. Power along with earthing would be provided near the Indoor Units/Outdoor Units unless specified otherwise. MCCBs / Isolators will be provided by Electrical contractor near each PAC. The cabling from isolator to PAC will be done by PAC contractor. The glanding and termination of cable in the PAC also to be done by PAC contractor & under supervision of Elec. Contractor. (iv) The units shall be programable with microprocessor with fault diagnos and real time clock with year-round programming capability. The unit shall be with open protocol and compatible to any type of Central iBMS. Necessary software and codes to be included in the costs for BACnet over IP connectivity. The control panel shall have min. 2 nos. Potential Free Contacts (for BMS and Fire Signal) (v) Units shall be with Self Generating Humidifier & Reheat Electrical heater bank & shall be provided with Automatic Temperature Control. (vi) Filters shall be 95% efficiency down to 5 Microns washable type. Filters to be covered with muslin cloth until final commissioning of Server Room. A spare set of filters shall be provided alongwith and to be handed over to Client. (vii) The units shall be suitable for operation on 415V +/-10%, 3 ph., 50 Hz, 4 wire A.C. supply. vii) The units shall be suitable for operation on 415V +/-10%, 3 ph., 50 Hz, 4 wire A.C. supply. Precision Package A.C. Units with a higher EER (at ARI conditions) with all Necessary Starter Panel, Controls, Microprocessor etc. Duct Cowl piece to ODUs for proper ventilation in case required to be provided by PAC vendor & to be included. The Units shall be Floor mounted and of Bottom Discharge (thru' false floor) suitable for direct Return 8.0 TR /4550 CFM - FOR SERVER ROOM

Supply & Installation of 50mm thick Under deck insulation generally as specified and complete with: Insulation as specified