REPAIRS AND MAINTENANCE OF CENTRAL PACKAGE TYPE AC PLANT AT GTRE UNDER GE I R AND D EAST BANGALORE

Material and labour for periodical maintenance of Central AC plants of any capacity like checking for proper electrical connection, checking/tightening of V belt, checking refrigerant pipe line, arresting refrigerant gas leakage if any, checking of proper functioning of electrical control panel, checking/cleaning of pre filter (twice in a month), and routine checking to ensure smooth running of Central AC plants complete all as specified and as directed:- NOTE :- Replacement of compressors, spares, condenser fan motors, blower and motor, solenoid valves, drain pumps, refrigerant, Oil, etc, if required shall be measured and paid separately under relevant items of this Schedule.

(a) Make: ACCELSMC 4-65 installed at 7A-7B Bldg 3 X 15 TR Central AC plant (01 No as stand By) (b) Make : BATLIBOI Make at IC Lab 3 X 15 TR Central AC plant (01 No as stand By) (c) Make Carrier installed at New assembly hanger 3 X 100TR Chiller plant (01 No as stand By) (d) Make : Bldg No 2 & 5 AC Plant (1 X 15 TR Central AC plant) (e) Make : Bldg No 3D CM AC Plant (3 X 15 TR Central AC plant (01 No as stand By) (f) Make : Bldg No 8 A Test Bed 3 X 14 TR Central AC plant (01 No as stand By) (g) Make : Bldg No 9 2 X 28 TR Central AC plant (h) Make : Machine Shop IV 1 X 14 TR Central AC plant (j) Make : MERF Bldg 2 X 28 TR Central AC plant (l) Make : Machine shop V (GTRE) 2 X37.5 TR Central AC plant

Material and labour for periodical maintenance of package AC plants of any capacity like checking for proper electrical connection, checking/tightening of V belt, checking refrigerant pipe line, arresting refrigerant gas leakage if any, checking of proper functioning of electrical control panel, checking/cleaning of pre filter (twice in a month), cleaning of out door unit with soap solution and routine checking to ensure smooth running of package AC plants complete all as specified and as directed:- Note: Replacement of compressors, condenser fan motors, Blower and motor, PCBs, Solenoid valves, Drain pumps, Refrigerant, Oil, etc., if required shall be measured and paid separately under relevant items of this Schedule.

(a) 2 X10 TR Package type (High mass Bldg) (b) 3 X5 TR Package type (Cell -03) (c) 3 X10 TR Package type ( Calibration Lab) (d) 2 X8.5TR Package type ( Material Group) (e) 2 X15 TR Package type ( Auditorium) (f) 2 X10 TR Package type (98 Building) (g) 2 X10 TR Package type ( Welding Shop)

Preventive maintenance for ductabe package type AC plants of following capacity consisting of regular inspection and checking of all electrical control panels, refrigerant gas leak testing, inspection/ checking /cleaning of distributions duct systems, checking and cleaning of all electrical motors, belts and fan blades, proper alignment, replacement of unserviceable refrigerant pipe line insulation including rectification of any faults as occurred/replacement of minor parts as required. Cleaning of cooling coil with Alkaline Based cleaner (non-Acid Based) at 2 x 8.5 TR with 1 x 8.5 TR standby at Super computer Bldg No 10 NOTE FOR Sl ITEM No. 1 to 3: (i) The rates quoted by the contractor shall be deemed to be included for the works as specified here in below.

(ii) Spare parts required to be replaced will be measured and paid separately. (iii) The rate quoted by contractor deemed to be included the cost for deploying a suitable mechanic to checking of functioning of AC Plant for its proper functioning and obtaining users signature in maintenance register/ maintenance schedule sheets and putup the same to Engr-in-Charge. (iv) The contractor will be responsible to keep the plants room area and surrounding area neat & clean regularly for inspection. (v) The rate quoted shall be inclusive of the cleaning material / cotton waste etc. (vi) Quoted rate is to be deemed the charges of necessary boom lift. (vii) The contractor shall depute supervisor on all working days in MES complaint cell for attending the complaint regarding the Air Conditioner.

Material and labour for Evacuating of refrigerant gas from the system into the empty cylinder for up to 100 TR capacity central/Package type AC plants, leak testing of the plant with dry nitrogen gas (N2) pressure by separating the entire system like low side, high side compressor condensers and rectifying the leakage vacummizing re-charging of evacuated refrigerant gas and testing complete all as directed. Note: Topping up of gas will be measured and paid separately.

Material and labour for disconnecting compressor of up to 100 TR from the system for maintenance/ servicing after closing by suitable dummy plates on suction and discharge valves and opening the compressor & removing of all internal parts, cleaning of the all parts thoroughly, grinding and polishing of crank shaft, including replacement of thrust collers, spring washers and nut bolts etc, and re-fixing back all parts, to the compressor and removing of the dummy plates, leak testing of the compressor, testing and commissioning of the compressor all as directed for following makes :-

(i) ACCELSMC 4-65 installed at 7A-7B Bldg 3 X 15 TR Central AC plant (01 No as stand By) (ii) BATLIBOI Make at IC Lab 3 X 15 TR Central AC plant (01 No as stand By) (iii) Carrier installed at New assembly hanger 3 X 100TR Chiller plant (01 No as stand By) (iv) Bldg No 2 & 5 AC Plant (1 X 15 TR Central AC plant) (v) Bldg No 3D CM AC Plant (3 X 15 TR Central AC plant (01 No as stand By) (vi) Bldg No 8 A Test Bed 3 X 14 TR Central AC plant (01 No as stand By) (vii) Bldg No 9 2 X 28 TR Central AC plant (viii) Machine Shop IV 1 X 14 TR Central AC plant (ix) MERF Bldg 2 X 28 TR Central AC plant (x) Machine shop V (GTRE) 2 X37.5 TR Central AC plant NOTE :- The quoted rate deemed to included for minor spares.

Supply and charging of compressor oil servo friz F 68 after draining out old/unserviceable compressor oil complete all as specified and as directed. Make of oil : INDIAN OIL or equivalent in BPCL/HPCL