P I T C of IVRF AC systems in replacement of existing old Blue Star make BVRF System in different areas including Court no 2 3 4 5 of THC Building Agartala along with dismantling of existing old machines to be replaced removing them from site taking

Out door Unit Supply, Installation, Testing & Commissioning of Modular type Variable Refrigerant Flow / Variable Refrigerant Volume air cooled Outdoor units after taking away old ODU unit, suitable for cooling / heating having 100% hermetically sealed inverter type Scroll Compressor(s), minimum two compressors 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. dismentalling and taking away of exisiting old system, 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 at AHRI Conditions and work even at 50°C ambient temperature without tripping. The system shall be able to deliver 100% of the rated capacity up to 39 Degree Celsius. The unit shall be suitable to work on 400V+/ 10%,3 Phase,50 Hz 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 shall have protection coating to save from various external conditions and the hydrophilic film to prevent water accumulating on the heat exchanger's film.Equipment should be AHRI 1230 certified& NABL Accredited with standard ISO 17025:2005. (As per ECBC, min efficiency of the system should be 3.28 EER and4.36 IEER forUnits less than 40kW(14HP),3.26 EER and 4.34 IEER for Units between 40 kW(14HP) to 70 kW (24HP) and 3.02 EER and 4.07 IEER for units more than 70 KW (24HP)) (Outdoor stand is not included) Complete as per CPWD specification / drawings and as directed by Engineer-in-charge.

For Cooling Only (10 HP to 12 HP ) 12 HP x 3 Nos

For Cooling Only (14 HP to 22 HP ) 18 HP x 1 No

For Cooling Only (14 HP to 22 HP ) 21 HP x 8 Nos

Indoor Unit Supply, lnstallation, Testing and Commissioning of following minimum capacity 4 way Cassette Type Indoor ceiling mounted unit, taking away of old 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,,dismentalling and taking away of exisitng old system etc. suitable for operation on single phase 230V±10%,50 Hz AC supply, complete, as required. The unit shall have automatic force shut down valve in case of fire on receiving signal from BMS System. The system shall be capable to adjust air flow as per room requirement automatically. The cassettes units shall have dual sensor which detect the presence of people and floor temperature to provide comfortable air-conditioning and energy saving. The sensor should detects human presence and adjust the air flow direction automatically to prevent drafts. Room temp should be increase or the indoor unit to be switched off when people are not detected. The sensor should detect the floor temperature and automatically adjusts the operation of the indoor units to reduce the temperature difference between the ceiling and the floor. The cooling capacity of indoor unit will be at air inlet conditions of27 Degree C DB and 19 Degree C WB temperature.(Make will be same as of Out door)

Supply, Installation, Testing and Commissioning of following minimum capacity High wall type Indoor unit, taking away of old units, equipped with and comfort washable synthetic 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, cord less remote control, drain pan,necessary accessories,dismentalling and taking away of exisitng old system, etc. suitable for operation on 230V±10%,50Hz, single phase AC supply, complete as required. The unit shall have automatic force shut down valve in case of fire on receiving signal from BMS System. The system shall be capable to adjust air flow as per room requirement automatically. he 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)

Supply, Installation, Testing and Commissioning of following minimum capacity and external static pressure VRF/VRV ceiling mounted high ductable type Indoor unit, taking away of old unit, equipped with washable synthetic media pre-filter, fan section with low noise fan/ dynamically balanced blower, multispeed motor ,coil section with DX copper coil, electronic expansion valve, corded remote control, outer cabinet, vibration isolators, drain pan, drain pump, other necessary supports,dismentalling and taking away of exisitng old system etc., suitable for operation on single phase AC supply 230 V± 10%,50Hz complete as required. The unit shall have automatic force shut down valve in case of fire on receiving signal from BMS System .The cooling capacity of indoor unit will be at air inlet conditions of 27 Degree C DB and 19 Degree C WB temperature.

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 specified thickness as given below for Suction and Liquid lines, all accessories as per specifications etc as required it is to be noted that The Copper Piping & Piping Circuit should be with Minimum Number of joints, which shall be attained by: (i) Using One End Expanded Tubes (ii) Bending the tubes instead of using elbow joints wherever 90 degree bending is required.(2)Piping should be routed at site in such a manner, that brazed joints in the refrigeration piping are kept to a minimum.(3) The Makes of tube fittings shall be same as that of tubes.(4) The thickness of fittings used shall be same as that of the pipe.

6.4 mm dia (OD) (Soft drawn) with tube thickness 1.2 mm with 19 mm thick insulation

9.5 mm dia (OD) (Soft drawn) with tube thickness 1.2 mm with 19 mm thick insulation

12.7 mm dia (OD) (Soft drawn) with tube thickness 1.2 mm with 19 mm thick insulation