REPAIR AND REPLACEMENT OF CENTRAL AC PLANTS INSTALLED AT TECHNICAL BUILDING IN THE AREA OF CAMERO (AFCME) UNDER GE (AF) SUBROTO PARK, DELHI CANTT-10

Amount

M&L for servicing to 3 x 12 TR (36 TR) air cooled central AC unit installed at AFCME including washing of evaporator unit, condensing unit, greasing to condensor motor for noise free operation, servicing to ceiling suspended AHU-04 Nos, cleaning of air filters, tightening of electrical/mechanical connections complete all as specified and directed by the Engineer-in-Charge. Note: Servicing of AHU shall be carried once in each month till date of completion as mentioned in Work order No.1/extended date of completion. Rate of the same shall deemed to be inclusive in Rate quoted for BOQ. Nothing extra shall be paid on this account.

M&L for taking out unserviceable squirrel case motor and rewinding squirrel case motor of mono block pump set of capacity 5 HP 3 phase for AFCME AC plant with super enamelled copper winding wire and replacement of bearing and minor spare parts like as keys, bushes etc and testing after rewinding and refixing to its existing location after rewinding complete all as specified and directed by the Engineer-in-Charge.

M&L for painting LT Panel installed for central AC plants at AFCME as per existing colour code with one coat of synthetic enamel paint with the help of spray gun after cleaning and preparation of surfaces complete all as specified and directed by the Engineer-in-Charge.

Taking out unserviceable AHU motor and rewinding AHU blower motor 1 to 3 HP 3 phase 415 V 50 Hz installed at AFCME with copper winding wire including insulation thimbles greasing & replacement of minor spare parts such as keys, bushes etc and testing after rewinding and refixing to its existing location after rewinding complete all as specified and directed by the Engineer-in-Charge.

Supply & Fixing in replacement of unserviceable AHU blower of ceiling mounted AHU installed at AFCME,also taking down false ceiling and refixing the same after blower fixing complete all as specified and directed by Engg-in-charge.

Supply & Fixing in replacement of unserviceable AHU blower shaft of ceiling mounted AHU installed at AFCME, also taking down false ceiling and refixing the same after blower shaft fixing including replacement of bearing and connected accessories complete all as specified and directed by Engg-in-charge.

Supply and fix in replacement of unserviceable V belt for AHU for central AC plant of cap 1x36 TR complete all as specified and directed by the Engineer-in-Charge.

M&L to Open/dismantle the supply air duct joints from AHU section to conditioned space, disengaging the diffuser units from the duct complete all as specified and directed by the Engineer-in-Charge.

M&L to Open/dismantle the return air duct joints from conditioned space to AHU section, disengaging the diffuser units from the duct complete all as specified and directed by the Engineer-in-Charge.

M&L to clean the supply air duct from inside with the help of pull through or as required at site with chemical CTC to remove large quantity of carbon dust particles complete all as specified and directed by the Engineer-in-Charge.

M&L to clean the return air duct from inside with the help of pull through or as required at site with chemical CTC to remove large quantity of carbon dust particles complete all as specified and directed by the Engineer-in-Charge.

M&L for refrigerant charging (M-22/F-22/R-22) for central AC plant including pressure testing the complete plant by dry nitrogen gas by separating high side and low side, rectifying the leakage by gas welding brazing pressure testing vacuuming the system and re-charging the system with gas, testing and commissioning complete all as specified and directed by Engr-in Charge. Note:- Any leakage occurs after charging of gas same shall be repaired and rectified by contractor without claiming extra cost from department.

S&F in replacement of condenser water and chilled water pipes of MS heavy grade of following sizes/dia with all fittings complete laid in trenches/on wall/on ceiling/roof etc including necessary suitable size of MS clamps/saddling on walls etc complete all as specified and directed by the Engineer-in-Charge.

80 mm dia.

65 mm dia.

Supply and fix in replacement of unserviceable MCCB 200 amps 4 pole 36 KA 415 volts 50 Hz with adjustable thermal and fixed magnetic setting, (Ics=100% Icu) complete all as specified and directed by the Engineer-in-Charge.

Supply and fix in replacement of unserviceable MCCB 160 amps 4 pole 36 KA 415 volts 50 Hz with adjustable thermal and fixed magnetic setting, (Ics=100% Icu) complete all as specified and directed by the Engineer-in-Charge.

Supply and fix in replacement of unserviceable MCCB 100 amps 4 pole 25 KA 415 volts 50 Hz with adjustable thermal and fixed magnetic setting,(Ics=100% Icu) complete all as specified and directed by the Engineer-in-Charge.

Supply and fix in replacement of unserviceable MCCB 100 amps 3 pole 25KA 415 volts 50 Hz with adjustable thermal and fixed magnetic setting complete (Ics=100% Icu) all as specified and directed by the Engineer-in-Charge.

Supply and fix in replacement of unserviceable MCB TP 16-32A complete all as specified and directed by the Engineer-in-Charge.

Supply and fix in replacement of unserviceable MCB TPN 63A complete all as specified and directed by the Engineer-in-Charge.

Supply and fix in replacement of unserviceable MCB DP 63A complete all as specified and directed by the Engineer-in-Charge.

S&F in replacement of scroll compressor of cap 12.5 TR with washers, bolts and nuts three phase 415 V 50 Hz suitable for central AC plant including brazing leak test of the system with compressed nitrogen and testing the unit for satisfactory functioning complete all as specified and directed by the Engineer-in-Charge.

Charges for attending to central AC plant complaints for rectification of minor complaints in LT panel, control Panel, AHU, Compressor and condensor including replacement of minor parts like nut bolts, washer, small gasket, complete all as specified and directed by the Engineer-in-Charge.

M&L for insulation to chilled water piping with 12 mm thick rubber nitrile with Aluminium foil of density 30 Kg/Cum for 65 mm chilled water pipe complete with rubber based adhesive Pidlite SR 998/equivalent and thermal conductivity not exceeding 0.0035 W/Mk at an average temp of 40 Degree C complete all as specified and directed by the Engineer-in-Charge.

M&L for insulation to chilled water piping of central AC plant of following sizes with 19 mm (for all pipes) and 13 mm (for drain pipes) thick, closed cell chemically cross linked fire retardant polyethylene foam insulation of density 30 Kg/Cum. The thermal conductivity of the material should not exceed 0.035 W/Mk at an average temp of 40 deg C, covered with aluminium faced foil complete with application with rubber based adhesive pidilite SR 998 and 50 mm X 3 mm thick self adhesive tape on both longitudinal & transverse joints simultaneously complete all as specified and directed by the Engineer-in-Charge.

65 mm dia chilled water pipe including valves, strainers etc.

50 mm dia drain pipe.

M&L for insulation to HDPE expansion tank of size 1000 Ltr of central AC Plant with suitable FR-XLPE/XPE 19 mm thick of minimum bulk density 28/-4 Kg/Cum covered with vapour barrier and finished with 0.5 mm thick aluminium cladding and application with rubber based adhesive pidilite SR 998 and 50 mm X 3 mm thick self adhesive tape on joints complete all as specified and directed by the Engineer-in-Charge.

S&F in replacement of 6 Sqmm copper Control Cable,3 core for AHU motor including connection from panel to Motor complete all as specified and directed by the Engineer-in-Charge.

Supply and fix in replacement of Expansion Valve capacity of 12.5 TR installed at AFCME central AC plant including welding/brazing and checking of leaking and leak arrest complete all as specified and directed by the Engineer-in-Charge.

M&L for repair to unserviceable PCB board suitable for central AC plant installed at AFCME of compressor 3x12.5 TR capacity by means of re-programming of PCB as per existing software complete and testing for proper working of PCB complete all as specified and directed by the Engineer-in-Charge.

M&L in repair of cross arms bracings supports, clamps and back plates fabricated from structural steel sections including nuts bolts washers welding bending cold or hold drilled holes for bolts in any shape or size as indicated or directed and inclusive of one primer coat one under and one finished coat of paint for installation of make up water tank complete all as specified and directed by the Engineer-in-Charge.

M&L for taking out unserviceable condensor fan motor and rewinding of motor for air cooled central ac plant at AFCME with super enamelled copper winding wire and replacement of bearing and minor spare parts like as keys, bushes etc and testing after rewinding and refixing to its existing location after rewinding complete all as specified and directed by the Engineer-in-Charge.

Supply and fix in replacement of unserviceable water pressure gauge 0-150 PSI 4" dia dial type complete all as specified and directed by the Engineer-in-Charge.

Supply and fix in replacement of unserviceable Thermometer industrial type complete all as specified and directed by the Engineer-in-Charge.

Supply and fix in replacement of unserviceable oil pressure gauge 0 to 150 PSI of dia 4" complete all as specified and directed by the Engineer-in-Charge.

S&F in replacement of 10 Sqmm copper Control Cable , 4 core for compressor connection from panel to Motor complete all as specified and directed by the Engineer-in-Charge.

Singh Associates (BID ID -3210941)

Saini Enterprises (BID ID -3209320)