Supplying and installation of invertor Ductable AC in library building at post Graduate Govt. College Sector 11, Chandigarh (IBM Scheme No. G3/20025/25031) (SITC of water cooled scroll chilling machines) (2x48 TR)

EQUIPMENT

WATER COOLED SCROLL CHILLING MACHINES

Supply, Installation, testing and commissioning of water cooled DX Chiller of 48.0 TR and unit shall consist with hermatic sealed scroll type compressors suitable for R-407c/R410-a refrigerant. Shell and tube water cooled Condenser, Insulated Shell and tube DX Evaporator, Micro Processor Controller as supplied by OEM as part of Chiller Package. The Unit mounted starter panel with double door construction shall be single Power point type complete with IP 55 Degree protection complete with Under/Over load, voltage, phase loss and phase reversal protection, Single Phase Preventers, communication card which can accept 4-20 mA or 2-10 V dc analog signal. Each Chiller package comprise of Min 2 compressors.

The unit shall be complete with Discharge Service valves to isolate refrigeration circuits, vibration Isolators to isolate chiller from building structure, pressure gauges Electronic expansion valves, solenoid valves, anti-freeze thermostats, refrigerant piping with Insulation for suction line, accessories of Safety valve, angle valve, liquid line indicator, water flow switch, Relief valve, Isolating valves and including MS stand to install the chiller units fabricated out of suitable size of structural steel sections etc. all as per OEM. All accessories housed in a single chasis design.

The noise level measured at a distance of 3 Mtr from the machine at anywhere in the plant room shall not exeed 80 dBA +-5%

The chilled water type AC plant will be suitable for operation on 3 phase AC 50 Hz supply .

The said Chiller package shall have stepped control of 100/50% of rated capacity since scroll comoressors works at full capacity only.

The chiller shall be as per specifications. The water chilling machine shall meet the following design parameters

The Chiller shall be 3 Star Rated and above as per BEE

Chilled Water leaving Temp. : 44°F (6.7ºC)