Indian Institute Of Technology Tender

Sub Head-A_PAC Systems Supply, installation, Testing and Commissioning of PAC unit with 9.5 TR Nominal Capacity, Floor Mounted, Bottom discharge, Air Cooled DX type CRAC units for Server room application, equiped with most advanced industry technology to operate at higher return air temperatures. The Indoor unit shall comprise of Digital Scroll Compressor(Variable capacity), Fibreglass corrossion resistant EC fans, Evaporator DX Cooling Coil with hydrophilic coatingBMS card,Microprocessor controllers, Thermostatic/Electronic Expansion valves, Driers, G4 Filter, Suction and Discharge piping, Internal power and Control wiring, Crankcase heaters, HP/LP Cutouts, Power and Control contactors, water leak detectors and Other Electrical accessories. Each unit should be having individual display panel, which shall display date, time, actual & set values, operating conditions, signal faults, collective faults, limiting values and PAC wellness alarm / service alarm to reduce the down time and unit memory shall hold the 400 most recent events with ID number, time and date stamp for each event. The feature of Load sharing mode feature shall be included. Team Mode feature for PAC units controller for synchronising the Multiple No. of units to work as single system for all above units. The Outdoor Condenser unit shall comprise of Condenser fans & motor, Condenser cooling coil (Copper coil with aluminium fins), Fan speed controller, Isolater switch. The unit shall be suitable for operation on 415 Volts, 50 Hz, 3 Phase, 4 Wire AC supply. Supply, loading, transportation, unloading at site, storage st site, shifting from storage place to site and preparatory works necessary arrangement for installation of PAC is incluse of the scope.

Supply and initial recharge of R-410A / 407 refrigerant gas & oil.

Supply, laying, intallation, testing and commissioning of the following size Interconnecting Copper piping(18G) between indoor & outdoor unit. Copper piping will be duly insulated with in the AC space.