REPAIR / MAINTENANCE OF SOLAR WATER HEATER, GEYSERS AND OTHER CONNECTED WORKS AT AF-I UNDER GE (AF) JAMNAGAR NO.2

Amount

Comprehensive maintenance of storage type electric water heater (geyser) comprising of the following checks/test including repair to unsv parts/components at different locations under GE (AF) Jamnagar-02. (i) Taking down geysers from existing position after disconnecting all electrical & water supply connection.(ii) Opening / dismantling & cleaning of all parts & checking for its serviceability. (iii) Cleaning / descaling of inner tank with descaling solution & water leakage testing of tank & rectification of leakage.Testing of thermostat for serviceability. (iv) Checking of pressure release valves & non return valve etc. to ensures free movement / smooth operation of these components. (v) Checking of overflow / vent pipes and removing blockages / obstructions if any. (vi) Reassembling the geyser, replacement of minor spare part such as nut, bolt, screw, rubber packing etc & refixing in same position, reconnecting with electric & water supply connection complete all as specified and directed.Note: All major defective unserviceable components such as thermostat, storage tank, heating elements, safety valves etc required for replacement shall be measured and paid separately as supply only under respective items of this BOQ, however quoted rates shall be deemed to includes for minor spare parts such as nut- bolts, screw, glands, packing etc.The following capacity of storage water heater are catered for as under:-

(a) 25 Ltr Capacity

(a) 50 Ltr Capacity

Supply only thermostats ISI marked suitable for 25 / 50 litres capacity geyser complete all as specified and directed. Make : ABC / Speer Hot / Crown / Power Pack

Supply only of safety valve / high pressure release valve ISI marked suitable for geyser of any capacity complete all as specified and directed.

Supply only heating element of 1 or 1.5 KW capacity including rubber washers ISI marked as per sample for existing complete all as specified and directed. Make : ABC / Speer Hot / Crown / Power Pack

Supply only heating element of 2 KW capacity including rubber washers ISI marked as per sample for existing complete all as specified and directed. Make : ABC / Speer Hot / Crown / Power Pack

Supply only storage tank made out of copper sheet and confirming to IS- 2082 (1973), suitable for 25 litres capacity geysers complete all as specified and directed.

Supply only storage tank made out of copper sheet and confirming to IS- 2082 (1973), suitable for 50 litres capacity geysers complete all as specified and directed.

Supply only apparatus plate suitable for 25 litres capacity geysers as per sample for existing item complete all as specified and directed.

Supply only apparatus plate suitable for 50 litres capacity geysers as per sample for existing item complete all as specified and directed.

Supply only 15 mm dia PVC flexible connection pieces with PTMT hexagonal adopters and washer at both sides, 450 mm long.

Supply only brass chromium plated connection pieces with brass hexagonal adopters and washer at both side, suitable for 15 mm dia pipe and 450 mm long complete all as specified and directed.

Supply only brass non return valve 15 mm dia, ISI marked suitable for geysers complete all as specified and directed.

M&L for insulation material (Glass wool) for geysers of any capacity including removing old insulating material all as per manufacture instruction complete all as specified and directed.

Material and labour painting of Geyser outer body cover blades by scrapping of old paint ,filling of cavities formed,preparation / cleaning of surface, making surface smooth and spray painting with one coat of white synthetic enameled paint of superior quality and writing MES /SM No with appropriate size letters using black paint complete all as specified and directed. The painting shall be carried out to following cap of geysers:-

(a) 25 Ltr cap

(b) 50 Ltr cap

S&F in repair round cable PVC insulated, PVC sheathed, with 3 core copper conductor of size 2.5 Sqmm, ISI marked & connecting complete all as specified and directed.

Supply and fix on wall/ ceiling/roof or laying in trenches 20 mm bore galvanised steel water tubing, medium grade including necessary fittings such as GI bends, tee, union etc complete and connecting to water supply pipe line including taking down old tubing, complete all as specified and directed. Note :-Earthwork where required shall be measured and paid separately.

Supply and fix in repair 15 mm size Angular cock, cast copper alloy chromium plated, screwed down high pressure with capstan head, screwed both ends for iron pipe or unions, complete all as specified and directed.

Supply and fix in repair 15 mm size bib cock, cast copper alloy chromium plated, screwed down high pressure with capstan head, screwed both ends for iron pipe or unions, complete all as specified and directed.

Periodical maintenance / servicing of solar water heater,flat plate collector type/ glass tube collector type, storage type with electrical backup of capacity 100 - 300 litres, as per manufacturer instruction comprising of the following works at different locations at GE (AF) Jamnagar. (a) Complete cleaning of solar system, removing of dirt dust etc. (b) Cleaning of heating surface glass with glass cleaning solution. (c) Opening of cold & hot water connection draining out deposited water removing of mud turbidity etc & cleaning with fresh water.(d) Checking of Non return valve, Electrical backup system & sacrificial anode & tighten the connection.(e) Checking of glass holding tube joint & rectification of leakage. (g) Replacement of unserviceable spare part. Note:-(i) Preventive maintenance shall be carried as per direction of Engr-in-charge.(ii) Unserviceable spares parts will be measured & paid separately as supply only.(iii) Work shall be executed through Authorised service technician of Tata Solar BP / Delta./Red ren (iv) Contractor shall submit the documentary evidence of Authorised service technician for the approval of GE before commencement of work.

Supply only solar glass tube suitable for glass tube collector of following size and cap

(a) 58 mm dia and 1800 mm long

(b) 58 mm dia and 2100 mm long

(c) 48 mm dia and 1800 mm long

Supply only Electrical back of capacity 2 KW, 230 V supply, with thermostat suitable for glass tube collector type solar water heater complete all as specified and directed.

Supply only Electrical back of capacity 3 KW, 230 V supply, with thermostat suitable for glass tube collector type solar water heater complete all as specified and directed.

Supply only outer side solar washer ( black ) "O" ring glass tube type suitable for glass tube collector type solar water heater complete all as specified and directed.

Supply only outer side solar tube cap for collector ( Plastic ) suitable for tube type solar water heater complete all as specified and directed.

Supply only Inner side solar tube cap for collector ( Plastic ) suitable for tube type solar water heater complete all as specified and directed.

Supply only Hot water tank for glass tube collector type water heating system of following capacity complete all as specified and directed.

(a) for 100 Ltr cap solar water geyser

(b) for 200 Ltr cap solar water geyser

(c) for 300 Ltr cap solar water geyser

Supply only Back support for following sizes

(a) 100 Ltr cap solar water geyser

(b) 200 Ltr cap solar water geyser

(c) 300 Ltr cap solar water geyser

Supply only stand for following size

(a) 100 Ltr cap solar water geyser

(b) 200 Ltr cap solar water geyser

(c) 300 Ltr cap solar water geyser

M&L for Chemical cleaning of tube by providing chemical & removing all scale / dirt / dust etc as per manufacturer's instruction complete all as specified and directed.

M&L for Chemical cleaning of tank by providing chemical & removing all scale / dirt / dust etc as per manufacturer's instruction complete all as specified and directed.

M&L for fabrication of staging for fixing of tank on roof for solar water heater up to 2.5 metre height from roof top, fabricated with mild steel angle, flat, tee etc (using steel section of grade Fe-290 Grade 165) confirming to including nuts, bolts, washers, welding, drilling holes for bolts, painting over all two coat synthetic enamel paint over one coat of primer, and taking down / dismantling of old staging complete all as specified and directed.

S&F in repair 25 mm size Ball valves high pressure of PTMT with epoxy coated Aluminium rod & high density plastic ball screwed for iron pipe and fixed to water tank. (Minimum weight 455 grams) complete all as specified and directed.

S & F industrial type plug & socket board SP & N enclosure with 2 pole and earth metal plug & socket complete with 10 Amp MCB SP, complete all as specified and directed. Make : Legrand cat part No : 607841 or equivelent of L & T, Schneider etc

Taking down carefully (copper/aluminium) submain wiring complete of any type (batten/surface conduit or concealed ) for socket point or power point complete with all fittings such as swiches sockets pendants etc complete and making good distuebed surface of wall,floor or ceiling with plaster of tiles or roof treatment etc and finishing the surface with distemper white washing/colour washing to match with the existing surface complte all as specified and directed.

M&L for sub main wiring using PVC insulated and unsheathed multistranded FRLS copper conductor cable using approved colour code as per IS drawing in and incl PVC casing and capping with all accessories and making good disturbed surfaces of wall, floor or ceiling with plaster and finishing the surfaces with distemper/white washing/colour washing to match with the existing surface complete all as specified and directed of the following sizes of cables:-

Using two single core PVC insulated FRLS cable 4 sqmm copper conductor multi stranded and 4.0 sqmm copper conductor insulated cable using as earth wire Note :2 runs of 4sqmm copper cable & 1 run of 4.0sqmm copper cable in and including PVC casing and capping shall be measured as one unit

Using two single core PVC insulated FRLS cable 6 sqmm copper conductor multi stranded and 6.0 sqmm copper conductor insulated cable using as earth wire Note :2runs of 6sqmm copper cable & 1 run of 6.0 sqmm copper cable in and including PVC casing and capping shall be measured as one unit

Using two single core PVC insulated FRLS cable 2.5 sqmm copper conductor multi stranded and 1.5 sqmm copper conductor insulated cable using as earth wire Note :2 runs of 2.5sqmm copper cable & 1 run of 2.5 sqmm copper cable in and including PVC casing and capping shall be measured as one unit

Supply and fix 500 ltr Rotational moulded polyethylene water storage tanks (cylindrical vertical with closed top) hoisted and fixed in position etc complete all as specified and directed.

Supply and fix 250 ltr Rotational moulded polyethylene water storage tanks (cylindrical vertical with closed top) hoisted and fixed in position etc complete all as specified and directed.

S&F in repair 15 mm size Ball valves high pressure of PTMT with epoxy coated Aluminium rod & high density plastic ball screwed for iron pipe and fixed to HDPE water tank complete all as specified and directed.

S&F in repair 20 mm size Ball valves high pressure of PTMT with epoxy coated Aluminium rod & high density plastic ball screwed for iron pipe and fixed to HDPE water tank complete all as specified and directed.

Supplying and laying in replace of CPVC pipes SDR 11 & plain CPVC SDR 11 of 20 mm dia fittings with all fittings and fixed to walls or through walls / ceiling or laid in floors including cutting, chasing, including clamps and all fittings and fixtures complete all as specified and directed. Make Supreme/Prince.

S&F in repair 20 Amp three pin top metal clad suitable for industrial socket, complete all as specified and directed. Make-Havells (Crabtree)/Anchor/Legrand.

S&F in repair 20 Amp three pin metal Plug suitable for industrial socket, complete all as specified and directed. Make-Havells (Crabtree)/Anchor/Legrand.

S&F in repair PVC plug top 15 Amps, single phase, 240 Volts complete all as specified and directed. Make-Havells (Crabtree)/Anchor/Legrand.

M&L for MCB single pole,5 to 32 Amp 240 volt B curve 10 KA, IP 20 complete all as specified and directed.

Attending Geyser and solar water heater complaints of domestic area deploying experienced mechanic and helper and rectification of complaints to the entire satisfaction of Engineer-In-Charge and users. Note:-(i) For rectification of complaints if any electric items required to be replaced the same shall be measured and paid seperately under "supply and fixing" items. (ii) Mechanics engaged by contractor for attending complaints and rectification of geyser and solar water heater complaints.

Note : (i) For item to be replaced under repair (day to day complaint) contactors trade man should report to E/M complaint cell daily and take complaint from concren JE E/M and after attending complaint he should give feedback and return the complaint slip to concern JE E/M in the evening at 17.30 Hrs on same day. (ii) Electrical complaint to be attend within 24 Hrs from the receiving of complaint, other wise panalty of Rs.100 per complaint per day will be imposed on contractor. In this regard decision of EIC and GE will full, final and binding to contractor. (iii) Being a maintenance contract site will be handover to contractor as per complaint received from user and as per site requirement. (iv) For any minor repair required in wiring or their is any fault in circuit where the item under repair is to be replaced, contractor has to identify and recitified the fault without any extra cost. (v) Rates for above shall be inclusive of rates quoted by contractor against BoQ/Sch 'A'. No extra payment in this regards be made to the contractor.

MADHAV ENTERPRISE

Krishna Bhoomi Enterprise

Pooja Enterprise

jagdish machinery stores

suvidhiconstruction

Sagathiya Builders

SURESH ELECTRICALS

Jagdamba Engineering