procurement of spares and refrigerant gas for split ac and hvac system installed at swas system and main tg building at 2x600mw sstpp, mppgc, dongalia , compressors ( 3hw18tb ) for blue star make split ac, capacity- 1.5tr , compressors for swas system emerson copeland make- compressor model no. cr72-kqm-tfm, capacity- 5tr , compressors ( 3hw24tb ) for blue star make split ac, capacity- 2tr , condenser coil of outdoor unit make:- blue star , model no.:-3hw24tb, capacity:-2tr approx. dimensions:- length- 900mm, height:- 660mm or equivalent , condenser coil of outdoor unit make:- blue star , model no.:-3hw18tb, capacity:-1.5tr approx. dimensions:- length- 660mm, height:- 500mm or equivalent , remote controller ( make-blue star, model -3hw18tb ) or equivalent , remote controller ( make-blue star, model -3hw24tb ) or equivalent , refrigerant gas r -22 , new empty refrigerant cylinder along with valve & key for refrigerant r-22 capacity 61 kg