Repairing/Replacement of spares/ hardwares for (2X120TRH) Glycol system Central A.C Plant at T.E Bldg. JLN Marg, MTNL, New Delhi.

Amount

Providing existing three way mixing valve in chilled water pipe line in air handling units at various floors along with actutator aggangements comprising of thermal controller, suitable for operation on 24 V i/c removing the old unservicable parts, insulation, falanges and refixing the entire system as per existing sizes i.e 65mm/75mm dia of repute Make. as per specification . The shut down and drain the water carry out the work, permission may be taken from Engineer in Charge.

Repairing. of energy efficient Heat-Exchanger fan complete with blades, hub, shaft etc. capable for free air-delivery of 20000CFM having electric motor of 3.5 HP, F Class insulation, IP 66 protection suitable for 24 hrs. continuous outdoor-duty operation on 415V +/- 5%, 50Hz, 3 phase a.c. supply including dismantling the existing faulty/burnt-out irheat-exchanger fan with all accessories & motor and fixing it after repairing works i/c testing commissioning etc as reqd .

Repairing & refurbishment of 20 HP chilled water pump i/c the attached coupling, bushes, bearings etc. and dismantling the same from base frame and transporting to workshop for repair & refurbishment, bringing the repaired pump set back at site, installation, testing and commissioning, providing heat-insulation of the pump-set etc complete as required. (Make: M/s Beacon, Model: BWC 80/100)

Replacement and faulty display card in microprocessor based controller fixed in AC chilling units i/c setting all parameters, safety set point, controls i/c checking and carrying out re-wiring to make the controller operational etc. complete as required. (Make: Carel Model:PCO1)

Replacement and filling of following components in fluid/electrical/mechanical/refrigerant circuit of central air-conditioniong system etc. complete as required a) Thermometer (Range: -20° C to 50° C, Make - H Guru/SS)

Syphon with valve

Transducer (HP/LP)

Replacement and fixing of V Belts of Air handling units of sizes ranges as under : a)B43

Replacement and fixing of V Belts of Air handling units of sizes ranges as under :a) A 24

Replacement of water pressure gauge in chilled/condensor water pipeline of central AC Plant. (Range : 0 to 10 Kg/cm2, Make : H Guru, )

Refilling/Top up of polyester oil (POE oil) for compressor of 120TR /172TR AC chiller with removing covers, gaskets and emptying of existing oil etc. complete as required. (Make & Grade: Bitzer BSE 32)

Re filling/top up of following refrigent gas (R-134A)) in the existing chilling machines of central AC plant unit

Part Renovation/Repairing of Soft Starter of AC chiller having built-in safeties, cards etc with replacement of components such as thyristor, electrical parts, programming of cards and replacement of display system etc as reqd

Replacement of butterfly valve of 65mm/75MM NB i/c dismantling of non operational valve from chilled water pipeline, providing and fixing new flanges, gaskets, nut bolts, thermal insulation etc. complete as required. Make:-M/s Advance/SS

Providing C-Shine Chemical/Alakaline based chemical for cleaning of cooling/heating/DX coils of HVAC system with checking conditions of coil i/c combing for enhancing the life span of coils and applying chemical as per recommendations of manufacturer to remove dust/dirty particles from the surface and inner part of aluminium fins and copper tubing etc. (Make- Floricon/C-Shine)

Providing existing prefilters in G.I frams having in sizes of 550X550X50 MM thick in AHU etc complete as requred.

Replacement of star dalta starter rating from 10 H.P to 12.5 HP with necessary modification in compartment (Make: Minimax/L&T/Schindler

Supplying and filling MEG Glycol solution having specific quantity of 1.08 to 1.10 at 25°C and PH value of 120 for the entire system of thermal storage AC plant.

BLUE STAR LIMITED