09/BSNL/EDVM/2020-21

Amount

PART A Supplying,Installation,testing and commissioning of factory assembled, factory tested 7 TR (Sensible) Cooling capacity precision package AC unit (microprocessor based air cooled units) complete with upward flow/downward flow with electronically commutated motor for evaporator blower,with scroll compressor, working on R 407C/R 410A in single refrigeratnt circuit,comprising of indoor and outdoor units with all components i/c supply of controls, interlocking, electrical accessories (SPP for all the three phase motors), voltage and current indications and sequential controls,communication port with suitable protocol to suit BMS compatibility,air cooled condenser with fans each directly driven by motors having a matching heat rejection duty with heat rejection coils constructed from copper tubes with expanded aluminium fins,MCBs, safety valves,pressure releasing valve, data communication cable between units,providing and fixing of suitable MS Stand for indoor unit to requisite height with necessary AVM's pressure testing,refrigerant charging,acceptance testing,packing,transportation to site,freight and insurance etc. complete as required as per the specifications attached. Makes of Precision AC: Any BSNL approved make (Emerson/Sidwal/Stulz/ Schneider Electric IT) or any subsequent product approved by BSNL CO EW till the last date of technical bid opening. Note: The unit shall be either Room Discharge or bottom discharge type, which shall be intimated by EE (E ), depending on the site requirement, while awarding the work.

PART B ( Associated works) Supplying and laying of XLPE insulated and PVC sheathed armoured Copper cable of 1.1 KV grade following sizes on the existing cable tray etc as required.

4x6 sq.mm

Supplying and making end terminations with brass compression gland i/c crimping with copper lugs for the following size of cables etc. as required.

4x6 Sqmm

3x2.5 sqmm

Providing and fixing heavy duty CPVC pipes of following size with all accessories and supports etc. complete as required.

Drain pipe 2" dia

Drain pipe 1 1/2" dia

Drain/Humidifier pipe 3/4" dia

Supplying and fixing,copper refrigerent pipes of following size with all accessories including cutting, bending, jointing, brazing etc.in existing MS Cable tray for hot gas and liquid lines of a single circuit, including insulating the refrigerent lines inside AC area with suitable fire retardent polythene foam etc complete as required as per specifications attached.

Hot Gas Line 1 1/8" Dia

Liquid Line 7/8" Dia

Supplying and fixing of MS cable tray of minimum 200 mm width, made of minimium 25 x 25 x 3 mm MS angle& 20 x 3 mm MS flat fixed on wall/ floor including all accessories complete as required as per specifications attached.

Providing modification of existing Outdoor Unit Stands including providing 75mmx40mmx5mm C type MS Channels suitable for installing new outddor units i/c cutting welding painting etc as reqd.

Dismantling of the existing 7TR Package AC units including Dismantling of Indoor Unit ,Outdoor unit and connecting Copper Pipes, interconnecting Cables, Trays and all other associated items and kept in safe place in the exchange premises asper E-in-C instructions i/c chipping concrete,making damages good etc as reqd.

Providing modification to the existing ducting at the damper by making a provision with 22 swg GI duct sheet so as to compatable with new PAC etc complete as reqd.

PART C ( AMC) Providing comprehensive maintenance of the above microprocessor controlled 7 TR Sensible Cooling capacity High precision package AC units for 4 years, after the warrantee period of 1 year including all items covered under Part A and Part B . The work includes monthly servicing, preventive maintenance of all components, replacing of faulty components, topping up of gas etc. as per the detailed specifications.

1st Year (Covered under Guarantee)

2nd Year

3rd Year

4th year

5th Year