SUPPLY, INSTALLATION, TESTING AND COMMISSIONING OF HEAT PUMP BASED HOT WATER SYSTEM AT KTDC-GRAND CHAITHRAM,TRIVANDRUM

Amount

Heat Pump & Tank

Storage Tank for Hot Water System <br>2500 Ltr calorifier tank made of SS 304,16 SWG sheets,Tig welded and tested to withstand 1kg/cm2,duly insulated with 100 mm thick 48 kg/cm3 Rockwool and covered with Aluminium 22 SWG in waterproof manner, top manifold for inspection and cleaning. Temperature guage, air release valve, temperature and pressure release valve, electrical heating port with adequate heating coils for back up, with necessary mounting MS structural stand protected with epoxy paint and lifting hooks etc. complete.

15 Tonne Heat Pump for Hot water System <Air to water heat pump 55kW or nearest output capacity and having input power with minimum COP of 4, rated output water temperature 55deg C with 1380 L/Hr or nearest delivery capacity, working on 1Phase/3 phase electrical power supply at ambient temperature range of 10 to 43 deg C, CFC free refrigerant, evaporator coil with coating for corrosion prevention, tube in tube copper / SS heat exchanger, expansion valves, expansion vessels, hot gas bypass arrangements, high efficiency fans, with necessary prewired digital control panel with BMS compatibility for automatic operation based on temperature requirement and all the required motor & starter circuits, motor overload & short circuit protection components, metering / controls / indication / sensors and related accessories with provision for cable entry of required size housed in a powder coated steel housing pre factory tested and certified. The rate circulation pump shall be included in the quote

10 Tonne Heat Pump for Hot water System. <br>Air to water heat pump 43kW or nearest output capacity and and having input power with minimum COP of 4 with rated output water temperature 55deg C with 1050 L/Hr or nearest delivery capacity, working on 1Phase/3 phase electrical power supply at ambient temperature range of 10 to 43 deg C, CFC free refrigerant, evaporator coil with coating for corrosion prevention, tube in tube copper / SS heat exchanger, expansion valves, expansion vessels, hot gas bypass arrangements, high efficiency fans, with necessary prewired digital control panel with BMS compatibility for automatic operation based on temperature requirement and all the required circulation motor & starter circuits, motor overload & short circuit protection components, metering / controls / indication / sensors and related accessories with provision for cable entry of required size housed in a powder coated steel housing pre factory tested and certified. The rate circulation pump shall be included in the quote

Timer based operating Automatic recirculation pumps(1 HP or nearest) as per manufacturer / OEM specification and standards.

Centralized Control Panel for the operation of heat pump, circulation pumps and all other electrical accessories in the system in a dust tight, vermin proof Enclosure having provision for cable entry /outgoing as per standards with suitably rated MCB/MCCB as incomer and SP/TP MCBs as outgoing, starters, motor over load protection devices, Multi function meter to read current, Voltage and Active power etc. The control connections shall be wired using PVC insulated 1 Sqmm copper conductor etc. complete using good quality and approved make of materials.

Electrical work

Supplying and fixing of following ways surface/ recess mounting, vertical type, 415 volts, TPN MCB distribution board of sheet steel, dust protected, duly powder painted, inclusive of 200 amps tinned copper bus bar, common neutral link, earth bar, din bar for mounting MCB's (butwithout MCB's and incomer ) as required .(Note : Vertical type MCB TPDB is normally used where 3 phase outlets are required.) 8 way (4 + 24), Double door

Providing and fixing following rating and breaking capacity and pole MCCB with thermomagnetic release and terminal MCCB withthermomagnetic release and terminal spreaders in existing cubicle panel board including drilling holes in cubicle panel, making connections, etc. as required. 125 Amp,16 KA,FP MCCB

Supplying and fixing 5 amps to 32 amps rating, 240/415 volts, "C" curve, miniature circuit breaker suitable for inductive load of following poles in the existing MCB DB complete with connections, testing and commissioning etc. as required. Single pole

Supplying and fixing 5 amps to 32 amps rating, 240/415 volts, "C" curve, miniature circuit breaker suitable for inductive load of following poles in the existing MCB DB complete with connections, testing and commissioning etc. as required. Triple pole

Supplying and fixing following rating, four pole, 415 volts, isolator in the existing MCB DB complete with connections, testing and commissioning etc. as required. 100 amps

Supplying and fixing following rating, four pole, (three phase and neutral), 415 volts, residual current circuit breaker (RCCB), having a sensitivity current 100 mA in the existing MCB DB complete with connections, testing and commissioning etc. as required. 100 amps

Supplying and fixing single pole blanking plate in the existing MCB DB complete etc. as required.

Wiring for circuit/ sub main wiring along with earth wire with the following sizes of FRLS PVC insulated copper conductor, single core cable in surface/ recessed steel conduit as required. 2X2.5 sq.mm+1X2.5 sq.mm earth wire.

Supplying and making end termination with brass compression gland and aluminium lugs for following size of PVC insulated and PVC sheathed / XLPE aluminium conductor cable of 1.1 KV grade as required. 4 X 35 sq. mm (32mm)

Supply & laying of one No. PVC insulated and PVC sheathed armoured aluminium power cable of 1.1 KV grade of the following sizes in the existing masonry open duct as required. 3.5 core 35 sq mm

Supply, laying and clamping of 1 no. PVC insulated and PVC sheathed armoured aluminium power cable, 1.1 KV grade of the following sizes using clamps noted along with the cables, spacing of clamps not exceeding 60cms, making good the damages , colour washing etc. as required. 4 core 16 sq mm with factory made clamp

Supplying and making end termination with brass compression gland and aluminium lugs for following size of PVC insulated and PVC sheathed / XLPE aluminium conductor cable of 1.1 KV grade as required. 4 X 16 sq. mm (28mm)

Supply and drawing bare earthing conductors of 3.15 mm copper conductor (No. 10 SWG) ( data for 25m) along with wiring/ cables and giving earth connection as required.

Supplying and fixing of following sizes of steel conduit along with accessories in surface/recess including painting in case of surface conduit, or cutting the wall and making good the same incase of recessed conduit as required. 20 mm

Supplying and fixing of following sizes of steel conduit along with accessories in surface/recess including painting in case of surface conduit, or cutting the wall and making good the same incase of recessed conduit as required. 25 mm

Supply and drawing FRLS PVC insulated & sheathed 650/1100 V grade 3 core copper conductor flat cable for submersible pump motor conforming to IS 694 part I 1990 as required including giving necessary connections of the following sizes. 4 sq mm

Providing and laying in position cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) in foundation of pump, DG set etc including form work etc as required.

Plumbing Work

Supply and providing CPVC pipe lines of required size having thermal stability for hot & cold water supply, ,brass valves,y strainers,line thermal insulation and all other fixing accessories required at site for the interconnection between tanks,heat pumps &re-circulation pumps etc.complete.