Routine Maintenance of Solar water Heating System

Amount

Cleanning of Flat Plate Solar Collectors Routine maintenance of solar water heating system (force flow circulation type) of 2000LPD / 4000 LPD capacity system at 60 deg C conforming to technical specifications and applicable standard for the equipments as mentioned under various clauses of section-I of technical specifcation. Cleanning of 32 nos. Flat Plate Solar Collector of size 1m X 2m (approx.) for collection of solar radiation to heat the water with all accessories as per clause no. 1.0 of section-V of technical specification.

PP Canteen

CED Canteen

Gol Canteen

South Site Canteen

Repair of Centrifugal mono block pump with Electrical motors Servicing of Monoblock type centrifugal pump sets suitable for 2000 LPD 02 Nos of CED canteen & 4000 LPD capacity system of Rewinding of electrical motor and repair/ replacement of motor cooling Fans, bearing of motor, seal, & servicing of pump, and other accessories as per clause no. 2.0 of section-V of technical specification.

PP Canteen

CED Canteen

Gol Canteen

South Site Canteen

Centrifugal Pump Monoblock type centrifugal pump sets suitable for 2000 LPD /4000 LPD system with electrical motor, motor cover and other accessories as per clause no. 4.0 of section-I of technical specification.

2000 LPD capacity system

4000 LPD capacity system

Repairs of piping insulation: PP canteen, CED canteen, Gol Canteen & South site canteen repair of existing insulation Minimum 50 mm thick Light Resin Bounded (LRB) minral wool insulation including 24 Gauge (0.5 mm) aluminium cladding as per clause no. 4.0 of section - V of technical specification.

M S Structure: Supply, installation of corroded M.S. structure of solar plate support, frame and locking of pannels etc. as per clause of no. 4.0 of section -V of technical specification.

Painting of M S Structure painting of P.P.Canteen, CED canteen, Gol Canteen, & South site canteen of M.S. Structural support such as Flat plate collector supports, Water tank support pipe support, angles / pipe etc. wherever required as painting as per clause no. 5.0 of section-V of technical specification.

Valves & Strainers Supply of Ball Valves, NRV and strainers required for water piping of following sizes as per clause no. 7.0 of section-V of technical specification.

25 mm dia. GM ball valve

25 mm dia. GM Y strainer

25 mm dia. GM NRV

15 mm dia. crome plated water taps

Description of Items: Supply & installation of spares & hardware, as given below, for carring out maintenance work on Solar water systems mentiond above as per clause 9.0 of the Technical Specification.

RTD PT-100 length 12"/15"/18" Temprature range 0-250Degree Centigrade

Stem type thermostates & thermal cut out: RTD PT-100 length 7"/12" and dia 4/5 mmdia Suitable at site GIRISHEG Type GEC-7.15A/11.15A,250 V Acsetting range 30-60-50-40-30/ 70-60-50-40-30-20 degre C as suitable for site requirement.

Connector- 6A, 16A

Over load relay 0 to 4.0 A

Indication lamp R, Y, B.

Timer-Selec-TS2M1

Start/stop push button

1 pole MCB C10 A Simens make

2 Pole MCB C6A, C10A

3 pole MCB C63 A

4 Pole contractor Simense make TC/D0910

Schneider power Contactor 3 pole as suitable for site work.

ELCB -25A, 30mA (Schneider)

Water level controller-Sr. No. 6H2545, 240 V / AC, 1Kohm to 200kohm,WLCD1

Gleserin field Pressure Gauge (Range 0- 7kg/cm2) S.S. body, dial 100mm.

Cable 4 core armed 2.5 MM2

Capacitor 15 MFD 230 V AC SYSCAP make /suitaible for site requirement.

Capacitor 22.5 MFD 440 V AC SYSCAP make /suitaible for site requirement.

Electric Heaters 3 KW 230V AC make by Duggal Brothers Model No. WH TP

PID PARAGON RTS29

Silicon rubber (washer) gasket 3/4"/1" dia

Conrol pannel cu cables

Mechanical seal No.12R

Bearing No. 6202 2Z

Lahs Green India Pvt Ltd (BID ID -3310009)