Ancillary electrical works for Setting up of 50 Bedded Critical Care Hospital Block at Malda Medical College and Hospital, Malda. (Electrical Work)_SITC of Central Air Conditioning Plant. (Project ID_HF252635393S000)

SUB-HEAD 1--Water Cooled Screw Chiller

The refrigerant flow control shall use an electronic expansion valve. The chiller shall be designed for a Water Side working pressure of 150 PSI and hydraulically tested at 1.3 times of design pressure. A number of properly spaced baffles shall be provided for maintaining optimum water velocity and heat transfer and the tubes shall be adequately supported. The system shall be in confirmation to IS : 16590 ammended upto date. (As per approved of EIC)

Chilled water Leaving Temp. (6.67 deg. C) Chilled water Entering Temp. (12.2 deg. C) Evaporator fouling factor = 0.018 m2. ⁰C/kW Condenser water Entering Temp. (32.2 deg. C) Condenser water Leaving Temp. (36.4 deg. C) Suitable for Seismic Zone and Altitude as per location/site. --- (All are working) (As per approved of EIC)

120 TR (Actual) BEE 3 Star Rated with ISEER 6.2(Minimum) Make- As Per List (As per approved of EIC)

SUB-HEAD 2--FRP INDUCED DRAFT COOLING TOWER

Supply, Installation, testing and commissioning of Induced Draft counter flow cooling Towers. The Cooling Tower shall be of Fiber Reinforced Plastic (FRP) Construction. The casing, basin/sump, fan deck and fan cylinder shall be of FRP, with direct driven fans, Galvanized hardware complete with sump and drain connection with suitable valve, PVC Honey comb fill, louvers, drift eliminator complete with spray nozzle having self rotating sprinklers, steel ladder, Isolating switch and other accessories to make it fully operational and maintaince National Accreditation Board for Testing and Calibration Laboratories (NABL) & positioning of cooling tower at Terrace of Building. Axial Flow Fan, weather proof IP 55 and Direct driven. The fan motor shall be premium efficiency IE3 class , as per IS 12615 Designed Conditions : Condensing Water Inlet/Outlet Temp. : 36.4 deg. C/32.2 deg. C, WBT 28.5°C /WBT as directed by Engineer-in-charge. ( Note - Cooling tower size depends on the ambient temperature conditions , contractor must check the required design temperature). --- (i) 150 TR ii) 500 USGPM (All are working) Make- Advance/Paharpur/Bell. (As per approved of EIC)

SUB-HEAD 3--PRIMARY CHILLED WATER PUMP

SITC of End Suction Back Pull out Type primary chilled water pump with CI casing, CI/Bronze Impeller, Sleeve mechanical seal along with TEFC pump motor, Each comprising of Suitable HP, TEFC Squirrel Cage Induction Motor with class "B" insulation, 1450 rpm speed, suitable for operatation on 415 ± 10% volts, 3 phase, 50 Hz A.C. supply. The Pump / Motor shall confirm to IE2 Standard(minimum) and Efficiency 75% minimum and as per ISI & NBCC guideline (overall pumping system) for minimum 320 USGPM flow rate under suitable head 15M (Min), mounted and aligned on a common MS base and, drain assy., vibration isolators complete in all respects duly insulated with 32mm thik Nitrite Rubber, mounted on common MS base plate, complete as per specifications etc. as required. The pump motor shall have IP55, all weather proof, isolator with lockable arrangement. [Head to be calculated as per site condition] (All are working) Make- [Kirloskar/KSB/GRUNDFOSS/BEACON] (As per approved of EIC)

SUB-HEAD 4--SECONDARY CHILLED WATER PUMP