SITC n AMC of 5 nos 14 TR HPAC type AC Units for proposed CDR Project III at RTTC Chinchwad Pune PART A Supply Portion PART B ITC n Part C AMC Portion

Electrical Items :

PART-A (SITC and misc. items) Supply of factory tested 14 TR (Sensible Cooling Capacity) Microprocessor based air-cooled High Precision AC package units complete with Upward / downward flow as per site requirement with suitable mesh in the return air path having energy efficient high technology, along with scroll compressor, comprising of indoor & outdoor units with all components including providing suitable floor stand for indoor unit to match false flooring height, supply of suitable size of copper refrigerant piping, controls, interlocking, electrical accessories, SPP [for all three phase motors], voltage & current indications & sequential controls, communication port with suitable protocol to suit BMS compatibility but without software, air cooled condenser, MCBs, safety valve, pressure release valve, data / communication cable between units etc. complete as required and as per specifications attached. Note:- 1. The length of refrigerant copper pipes for hot & liquid lines, condenser cable shall be included up to 12 Mtr. in Part-A / Item 1. Additional extra length shall be paid, as per Part-B(2) / Item- 2.21 & 2.22 respectively.

PART-B: ITC Portion Installation, Testing and Commissioning of above 14 TR air-cooled High Precision AC package units complete with all components, air cooled condenser, including laying of refrigerant piping, cable, charging of required quantity of refrigerant, condenser/data communication cable between units etc. as required on existing framework for item at Sr. No. 1 of Part-A.

Supplying and fixing of copper refrigerant piping of minimum 18 G (1.2 mm) thickness of following sizes with all accessories including cutting, bending, jointing, brazing & painting etc. for hot gas and liquid lines of a single circuit, on existing MS angle tray including insulating the refrigerant lines inside AC area with suitable fire retardant polythene foam complete as per specifications attached. a). Hot Gas Line, 7/8" nominal dia.

b). Liquid Line, 5/8" nominal dia. Note:- 1. The length of refrigerant pipes for hot and cold lines shall be included up to 12 mtrs in Part-A/ Item No-1. Circuit lengths (for liquid line/ hot gas line) falling in the range of 10 to 14 mtrs. will be measured as 12 mtrs. and are not subjected to price adjustment. Where site conditions warrant provision of liquid refrigerant and hot gas refrigerant pipe of lengths which are more than 14 mtrs & less than 10 mtrs suitable price adjustment shall be made for additional/ reduced length. 2. In case of multiple circuit only single circuit will be measured.

Supply and fixing of 1.1 KV grade PVC/XLPE insulated PVC sheathed copper conductor armored cable of the following size on the existing MS angle tray (with saddles) along with 2 x 2.24 mm dia. bare copper wire for loop earthing & end termination of cable with glands/lugs etc. as required. a). 3 x 2.5 sq. mm (for condensers)

b) 4 x 16 sq. mm (for Pkg. Units) Note:-The length of armoured copper cable & 2 nos 2.24 mm dia copper wire for condenser shall be included up to 12 mtrs. with suitable lugs & glands for each condenser in Part-A/Item No-1. Circuit lengths falling in the range of 10 to 14 mtrs. will be measured as 12 mtrs. and are not subjected to price adjustment. For circuit length which are more than 14 mtrs & less than 10 mtrs suitable price adjustment shall be made for additional/ reduced length.

Providing MS structure for Outdoor Units/referigerant pipe & cables made out of solid channels/angles/flats etc i/c cutting, welding, grouting, fixing with hardware & painting etc as required.

Providing plumbing work for humidification circuits and drainage requirements including supply of ISI marked Class-I SDR-11 CPVC Pipes (Chlorinated Polyvinyl Chloride material as per IS-15778) with threaded fittings such as bends, reducers, adapter, elbows, tees, unions, coupler, end caps, flanges etc. for water connection of various components of the system complete with plumbing work by applying cleaner, solvent cement, primer, teflon tape & various size of metal clamps for fixing pipes etc as reqd. a). 25 mm ( Medium class ) GI pipe insulated with 6-mm thick superior insulation (for condensate drain)

b) 25 mm Dia

c) 40 mm Dia

7. Providing and fixing 6 SWG dia GI Wire on surface or in recess for loop earthing as reqd.

PART-C (MAINTENANCE ITEMS) 8. Comprehensive maintenance of the 7 TR microprocessor based air-cooled Precision package AC unit (after the warrantee period) including all items covered under Part-A & Part-B as per the specifications/conditions of contract & as per the details given in relevant sections by deploying the required staff including specialized man power and by arranging required spares, refrigerant gas, tools and plant etc.to keep the AC unit & connected equipments operational up to the required standards complete as required. Note :- 1) Operation of AC unit is not included in this item. 2) Warranty period /Defect liability –a) 12 Months for complete a) Second Year( First Year covered under defect liability/warranty period.)

b) Third Year

c) Fourth Year

d) Fifth Year Note: For financial evaluation purposes maintenance charges for 4 years will be taken discounting @12% per year to arrive Net Present Value as follows:- Value of operation charges for evaluation purpose

SINGHSONS REFRIGERATION

SHES Air And Automation

Power Control, Nagpur