Providing, Fabrication, Installation, Testing and Commissioning of Walk-in-Cold Room in Zanskar and Girnar Hostel, IIT Delhi (including CAMC)

Amount

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.

4875 mm x 2520 mm x 3050 mm (For Girnar Hostel)

5820 mm x 3280 mm x 2850 mm (For Zanskar Hostel)

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 attached specifications. The cooling capacity of each indoor unit will be not less than 20,000 BTU/hour (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 programmable logic controller (PLC) for automation of controlling electromechanical processes, such as control of Temperature, Relative Humidity, Standby systems and event management with less maintenance, 7” HMI with colour 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 (1 + 1) AC units, 1 working and 1 standby. [1 system for Girnar and another for Zanskar Hostel]

Supply, installation, testing and commissioning of air-curtain with air velocity not less than 21 m/s with not less than 800 CFM, suitable for operation on 230-volt, 50 Hz supply with motor (blower) speed of 3000 rpm with all electrical accessories, limit switch etc. as required.

Civil work in cold rooms

Demolishing brick work manually/ by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 meters lead as per direction of Engineer-in-charge. In cement mortar.

12 mm cement plaster of mix: 1:6 (1 cement: 6 fine sand)

Disposal of building rubbish / malba / similar unserviceable, dismantled or waste materials by mechanical means, including loading, transporting, unloading to approved municipal dumping ground or as approved by Engineer-in-charge, out site IIT campus. Including GST as required on site.

Kota stone slabs 20 mm thick in risers of steps, skirting, dado and pillars laid on 12 mm (average) thick cement mortar 1:3 (1 cement: 3 coarse sand) and jointed with grey cement slurry mixed with pigment to match the shade of the slabs, including rubbing and polishing complete.

MS Supports: Providing and fixing angle iron frames for doors, windows and ventilators of mild steel Angle sections of size 35x35x5 mm or 50 x 50 x 5 mm, joints mitred and welded by angle iron 35x35x5 mm or 50 x 50 x 5 mm as required or 35x 5 or 50 x 5 mm flat pieces to the existing T-iron frame or to the wall with dash fastener, including fixing of necessary butt hinges and screws and applying a priming coat of approved steel primer, all complete as per the direction of Engineer-In-charge

SUB HEAD - 2 (AMC) (Supplementary agreement shall be formed after DLP) under ARMO Fund

Comprehensive (Routine, Preventive and Breakdown) maintenance of cold rooms including its all accessories, condensers, evaporator units, time to time checking of refrigerant leakage, electrical circuits, etc. for smooth operation of the entire units during the defect liability period of 1 year after date of commissioning as per maintenance schedule. (No payment shall be made separately for this period): 1st Year

Comprehensive (Routine, Preventive and Breakdown) maintenance of cold rooms including its all accessories, condensers, evaporator units, time to time checking of refrigerant leakage, electrical circuits, etc. for smooth operation of the entire units after defect liability period of 1 year from the date of commissioning as per maintenance schedule. Any breakdown shall be attended within 4 hours of reporting. Spare parts required during breakdown maintenance shall be arranged and replaced by the Contractor. This is applicable for the whole system of cold rooms units installed. (N.B.: 01 Job means during a period of one year)

2nd year (For 12 months)

3rd year (For 12 months)

4th year (For 12 months)

5th year (For 12 months)

6th year (For 12 months)

Airtech Cooling Process Pvt. Ltd