REPAIR / MAINTENANCE /SERVICING TO THE AC PLANTS AND UPS AT DOLPHIN HILL AREA UNDER AGE E/M NO-III OF GE(U-I) VISAKHAPATNAM

M&L for de-scaling condenser/evaporator coils of 2x36TR Central AC plant by circulating the diluted hydrochloric acid at the appropriate ratio depending upon the scale deposits till removal of all the scale inside the condensor/evaporator coils as directed by engr-in-charge all as specified and directed. Note: Rate qouted by the contractor shall deemed to be inclusive of cost of descaling chemical (required for descaling), rubber gasket, testing etc., complete.

All as per Sl Item No. 2.00 here in before but 3 x 22 TR Central AC plant.

All as per Sl Item No. 4.00 here in before but 3 x 25 TR Central AC plant.

M&L for servicing and cleaning of Air handling units of 33200 CFM capacity (central AC), with and including dismantling filter units, blowing out the dust, chemical cleaning by spraying the organic based scale removing agent Vaniklin at the appropriate ratio till removal of complete dust & scale deposits in the fin area of evaporator coil, flushing through for proper air flow across the coil, greasing of blower motor, checking of electrical connection, cleaning of air filters, greasing of blower motor, replacement of un serviceable bearings, cleaning water drain lines, renewal of rusted sheet metal screws, every month for running AC plant at optimal condition unit all as specified and as directed by Engineer-in-Charge.

All as per Item Sl No.6.00 herein before but 01 No of Air handling unit 32000 CFM capacity

All as per Item Sl No.6.00 herein before but 01 No of Air handling unit 20200 CFM capacity

All as per Item Sl No.6.00 herein before but 01 No of Air handling unit 500 CFM capacity

M & L for Complete servicing of FRP cooling tower, removal of complete scales, dirt etc. by using chemicals, cleaning the sump louvers, PVC fills, fan assembly, renewal of spray nozzles, renewal of nuts and bolts, and including applying painting to the cooling tower as per the standard practice for 3x40 TR capacity cooling tower at every three months complete all as specified and directed.

All as per Sl Item No.10.00 herein before but 3x25 TR capacity

M&L for complete leak testing for Chiller type sytem by extracting the existing refrigenrant into empty cylinders and pressure and leak testing the complete system with Nitrogen Gas and check for leaks, identifying the leaks if any, rectification of the leaks by brazzing/welding and replacing the damaged gland package/gasket at the identified leak points. Pressure testing the system again after rectification for 24 hours, vaccume the entire system after release of Nitrogen and charging the refrigerant into the system, testing and commissioning the plant of capacity 2x36 TR Central AC plant all as specified and as directed by Engineer-in-Charge.