operation and maintenance with supply of drinking water machine as specified in table-a at various locations under kalna sub division within purba bardhaman district out of xv fc grant 2024-25 , water cooler cum purifier machine , specifications/requirements/features: i) storage capacity (upto float value level)- minimum 80 ltr ii) purification type– ro+uv iii) capacity with comfort level water outlet - minimum 60lph ,temp at 17•c +10c at related condition. iv) no of faucets- minimum 2 (1 cold and 1 ambient) v) operating power supply -230+- 10%v ac(50hz)1ph vi) power in watts(max)atrated condition 720 +- 10% vii) operating temperature -10•cto 45•c viii) various parameters in output water as per is 10500(2012): drinking water a) ph value-6.5 to 8.5 b) turbidity – max 1 ntu c) tds.- max 500mg/l d) iron- max 0 to 3 mg/l e) total hardness as caco3- max 200mg/l f) siltdensity index-max 5 g) free residual chlorine – max 0.2 mg/l ix) machine material- stainless steel body x) nature of faucets- auto shut off xi) manufacturer guarantee- one year from the date of testing xii) product must be isi certified. , iron stand for supporting water cooler cum purifier machine , specifications/requirements/features : suitable for water cooler cum purifier machine of 60l to 120 l storage capacity. ii) maximum 200 kg load capacity iii) equipped with four heavy duty double wheels that allow for smooth movement in any direction, each wheel a reliable brake system to prevent unwanted movement, ensuring appliance remain securely in place without vibrations. iv) special features:- rust proof heavy duty, adjustable, movable, anti vibration , anti skidding , smooth movement. v) 1 year warranty coverage against manufacturing defects. , additional 2 years warranty excluding manufacturer guarantee from the date of testing , specifications/requirements/features :- i)money will be released after submission of reports of 4 services on half yearly basis. ii) to attend breakdown within 3 days and to keep the scheme in operation without lapse of time.