Indian Institute Of Technology Tender

Providing, fabrication and construction of Walk-in-Cold Room of following dimension made of 60 mm thick PUF (Polyurethane Foam) Panels with SS-304 finish both from outside and inside and 60 mm bare PUF for floor insulation complete with Flush type door of size 865 mm x 1980 mm (approx) providing perfect alignment of walls and strong and reliable locking, Heavy-duty cast alloy handles and hinges with attractive brushed chrome finish, Airtight heavy-duty sealing gasket below door remains flexible at any temperature with view port (300 mm x 300 mm), PUF density shall be 40±2 kg/cubic metre, ecofriendly PUF with tongue and groove system to be locked by Cam lock, door shall have PVC strip curtain of appropriate thickness and fifty percent overlap, complete with user-friendly height adjustable solid stainless steel wire mesh trays, chamber illumination with required number of LED lights (not less than two), necessary slopes / ramps as per the specifications and attached drawing complete as required. Whenever the cold room door is opened the microswitch shall switch on automatically the internal light and turns off the cooling fan.

5.5 m x 2 m x 3 m (H)

REFRIGERATION / AIRCONDITIONING SYSTEM: Designing, Supply Installation, Testing & Commissioning of factory assembled and factory tested Air Conditioner suitable for cooling having air-cooled outdoor units, all hermetically sealed Compressor(s) designed for - 4.0 deg C suction / evaporation temperature and 45 deg C ambient temp, side discharge type condensing unit(s), with R-410 a / 407C (or CFC and HCFC free) refrigerant, vibration isolators, with suitable foundation etc. complete as required. The unit shall deliver not less than 800 CFM supply air. The unit shall be suitable to work on 400 / 230 V ±10%, 3 / 1 Phase, 50Hz AC power supply. Indoor unit shall be equipped with washable synthetic media pre-filter (95 percent down to 5 micron), evaporator unit with fan section with low noise fan/dynamically balanced axial flow fans not less than 3 nos., multispeed motor, coil section with DX copper coil, thermostatic / electronic expansion valve, outer cabinet, Filter drier for moisture and dirt protection, drain pan, other necessary supports etc. The unit shall be filled with first charge of the refrigerant and ready for use as required. As per the following specifications. The cooling capacity of each indoor unit will be not less than 20,000 BTU/hour for both units (1 working + 1 stand by) and should be able to cool the room upto 2 deg C. The unit shall have digital temperature indicator cum controller, High quality PT-100 Sensor for better accuracy, Safety and control devices for better system protection, Thermally protected and permanently lubricated fan motors, a logic controller (LC) for automation of controlling electromechanical processes, such as control of Temperature, Relative Humidity, Standby systems and event management with less maintenance, 7” HMI with color Display and touch screen, Data storage to record set values, process values, date & time with variable time intervals, Display of set value and process value. All electrical connections and panels and controllers, contactors, automation etc. are included in the scope. Refrigerant copper pipelines shall be provided as per site requirement. Power cable, control cable etc. shall be supplied and installed at site as per OEM recommendations are included. All power and control cables shall be multistranded copper with ISI marked and fire retardant. The controller and electrical panel shall be for controlling and operation of two units (1 working & 1 standby) complete as required. Electrical connections with suitable size of cables shall be taken from nearest Electrical Distribution panel board and one electrical DB with MCBs shall be provided for electric supply for the cold room complete as required.