annual repair and maintenance of various electrical and mechanical services at sgm hospital mangolpuri delhi. (sh :- repairing & replacement of worn out parts of 08 nos. air decontamination system.)-- 1 servicing & repairing of existing duct mounted air decontamination system / units based on acdm technology which are installed for existing air conditioning ducts (5000 – 20000 cfm) of different area at sgm hospital including supplying and replacement of following worn out parts / accessories to make them functional and effective for the purpose including dismantling and re-installation of units at the site i/c buy back for worn out / dismantled parts etc complete as reqd. 2 16w 4 uvgi tubes at 254mm wave length along with required micro components etc complete as reqd. 3 6w 220v ac 50/60 hz high density plazma ion generation power supply to plazma cluster ion generating metallic probe etc complete as reqd. 4 2 uvc activated nano photo catalyic tio2 membranes etc complete as reqd. 5 time totallizer (display panel) 6 air flow balancing fan for heat extraction 7 ac line filter