SPECIAL REPAIRS TO SOLAR WATER HEATER AT VARIOUS LOCATIONS AT HQTC BANGLAORE

Taking down carefully old unserviceable solar tank with solar plate of any capacity and any height and all accessories complete all as specified and as directed by Engr-in-charge.

Supply and fix in repair solar water storage tank 100 ltrs capacity made of heavy-gauge food-grade stainless steel (SS 316) to prevent corrosion and rust from constant water and having space between the inner and outer tank filled with high-density polyurethane foam (PUF) to drastically reduce heat loss, keeping water hot for up to 72 hours and capable of storing water between 60°C to 90°C temperature and including electric immersion heater with thermostat switch, temperature and pressure valve for safety including all accesories as per site requirement complete all as specified and as directed by Engr-in-charge.

Supply and fix in repair solar water storage tank 110 ltrs capacity made of heavy-gauge food-grade stainless steel (SS 316) to prevent corrosion and rust from constant water and having space between the inner and outer tank filled with high-density polyurethane foam (PUF) to drastically reduce heat loss, keeping water hot for up to 72 hours and capable of storing water between 60°C to 90°C temperature and including electric immersion heater with thermostat switch, temperature and pressure valve for safety including all accesories as per site requirement complete all as specified and as directed by Engr-in-charge.

Supply and fix in repair solar water storage tank 200 ltrs capacity made of heavy-gauge food-grade stainless steel (SS 316) to prevent corrosion and rust from constant water and having space between the inner and outer tank filled with high-density polyurethane foam (PUF) to drastically reduce heat loss, keeping water hot for up to 72 hours and capable of storing water between 60°C to 90°C temperature and including electric immersion heater with thermostat switch, temperature and pressure valve for safety including all accesories as per site requirement complete all as specified and as directed by Engr-in-charge.

Supply and fix in repair solar water storage tank 300 ltrs capacity made of heavy-gauge food-grade stainless steel (SS 316) to prevent corrosion and rust from constant water and having space between the inner and outer tank filled with high-density polyurethane foam (PUF) to drastically reduce heat loss, keeping water hot for up to 72 hours and capable of storing water between 60°C to 90°C temperature and including electric immersion heater with thermostat switch, temperature and pressure valve for safety including all accesories as per site requirement complete all as specified and as directed by Engr-in-charge.

Supply and fix in repair flat plate collector (FPC) solar collector panel suitable for existing roof top solar water heater system based of toughned tempered glass of 4mm thick and cladding with aluminium sheet 26 SWG complete with copper rising tube, copper heater tubes, copper sheet and absorber for solar water heater of capacity 300 LPD and size not less than 2000x1000x100mm and including all fittings and accesories as per site requirement complete all as specified and as directed by Engr-in-charge.

Material and labour for sub main wiring with two single core 4 sqmm PVC insulated, unsheathed, FRLS multistranded copper conductor 1100 volts grade cable in and including heavy grade PVC conduit 25mm dia ISI marked broken white or of cream colour with all accessories such as tee, bend, joint cover etc., screws, gutti/ roul plugs PVC all as per site requirements including fixing on surface on stone walls/ brick masonary walls /ceilings /floors etc., with 4 sqmm PVC insulated, unsheathed, FRLS multistranded copper conductor 1100 volts grade cable as a continuous earth wire and connected to common earth dolly complete and making good to disturbed surfaces with plaster and matching with the existing colour of wall /floor etc., and colour coding of cables such as Phase-Red, Neutral-Black, and Earth-Green complete all as specified and as directed by Engr-in-charge. Note: Two run of 4 sqmm single core cable and one run 4 sqmm earth wire including PVC conduit 25mm dia together will be measured as one unit.

Supply and fix for sheet metal enclosure for DB's double door SPN, 8 ways when MCBs to be used single pole and neutral, deep drawn with 200 Amps rated copper bus bar 230 Volts complete all as specified and as directed by Engr-in-charge.

Supply and fix for MCB SPN, 40 Amps, 230 V, C- series with breaking capacity of 10 KA complete all as specified and as directed by Engr-in-charge.

Supply and fix for MCB SP, 6-32 Amps, 230V, C- series with breaking capacity of 10KA complete all as specified and as directed by Engr-in-charge.