WBPWD/SEWEC /BED /NIQ-116 /2023-24

Amount

Charges of Annual Comprehensive Maintenance Contract of Split/Concealed/Window type Air Conditioning machines installed at different Dept. in Burdwan Medical College & Hospital for the Period of 12(Twelve) Months (i.e.,365 days).

i) 1.5 Ton Capacity Window Type A.C Machine.

ii) 1 / 1.5 Ton Capacity Split Type A.C Machine.

ii) 2 Ton Capacity Split Type A.C Machine.

iii) 3 Ton Capacity Split Type A.C Machine.

iii) 2 Ton Capacity Concealed Split Type A.C Machine.

iii) 3 Ton Capacity Concealed Split Type A.C Machine.

iii) 4 Ton Capacity Concealed Split Type A.C Machine.

iv) 7.5 Ton Capacity Concealed Split Type A.C Machine.

Charges of Annual Comprehensive Maintenance Contract of Cold Chain Room Air Conditioners Machine Installed at Blood Bank and Medicine Store Cold Chain Room in Burdwan Medical College & Hospital for the Period of 12(Twelve) Months (i.e.,365 days).

i) 1.5 Ton Capacity Split Type A.C Machine at Blood Bank Cold Chain Room.

ii) 1.2 Ton Capacity Split Type A.C Machine at Medicine Store Cold Chain Room.

Charges of Annual Comprehensive Maintenance Contract of Negative Pressure Unit with Refrigarent System and Fresh Air Handling Unit with Duct and exhaust fan unit Installed at HDU&CCU of G+7 Building Burdwan Medical College & Hospital for the Period of 12(Twelve) Months (i.e., 365 days).

TERMS & CONDITIONS:-

1. The motto of preventive and corrective maintenance is to minimize Breakdown / Fault; to prevent Fire Hazard related to unitary Window, High Wall Split & Tower type AC machines and to minimize downtime. Any incidence of Fire Hazard due to lack of maintenance would be viewed seriously and the agency would be held responsible. 2. The scope of this maintenance work is from the Timer / Starter to the air-conditioning unit. However replacement & repair of the same is not under the purview of the contract. 3. This comprehensive contract covers preventive & corrective maintenance of AC machines / spare parts as required so as keeping the AC machines well operative / functioning round the clock as desired from performance and safety point of view. 4. This contract covers repair and replacement of spare parts & accessories including compressor, blower motor, sheet metal body and repairing / replacement of condenser coil & copper tubes. Capacitors, relay, thermostat- air filters etc. as necessary without any kind of financial implication for it and these spare parts / accessories should be available at site in the custody of the entrusted agency. However all the replacement materials should be approved by the concerned Assistant Engineer, while replacing capacitor only burst proof capacitor (P2 /S2 type) having highest level of safety features as per IEC 60252-1-2001-02 standard, protected with self healing properties and overpressure disconnection device, should be used.

5. Checking of any unwanted leakage current at the Indoor and outdoor units is also under preview of the contract. If any such leakage current is found, that should immediately be brought into the notice of concerned IE (Electrical), PWD and must be reflected in the Log-Book. 6. The contract covers preventive servicing of at least requisite number of machines per day. So that total machines under contract should be checked / serviced fortnightly, (twice in a month). 7. The contract covers thorough overhauling twice in a year and painting of sheet metal / support / wooden frame of RAC/SRC at site once in a year. 8. The agency will replace the supports / wooden frame of RAC/SRC as required against damaged one and no extra charges will be paid for that . 9. The contract covers charging of refrigerant in AC machines as per original refrigerant of the concerned machine as and when required including pressure testing without any financial implication for it. 10. The thermostats should be set properly and should be checked whether malfunctioning to avoid continuous running. 11. Grill temperature and refrigerant pressure must be measured to check whether it is within the designed value and should be recorded in the Log Book.

Daily Preventive Maintenance covers Filter cleaning, checking of all power and signal terminations. Wiring between Indoor & Outdoor units, Checking of Gas pressure & leakage of gas, checking of Condensers, Cleaning of cooling & condensing coils, blower and swing motors (where applicable), Thermostats, Capacitors, Capillary tube etc, Sound level and overall cleaning of the total unit During routing checking, the set point of AC machines should also checked and if any abnormal temperature setting is noticed, that should specifically be noted in the log book. 13. In case of AC machines for which Warranty period already expired the PCB and it's terminations, Transformers in the PCB, Blower and Swing motors of Indoor Unit of SAC etc. should be checked whether there is any symptom of heating at the time of routine checking to prevent fire hazards arising out of these places. 14. In case of break-down of A.C. Machines the restoration will have to be done within 12 hrs. from the time of breakdown. If the machine is required to be removed / shifted to Workshop and retained for more than 12 hours, spare A.C. machines have to be provided by the agency as replacement free of cost. If the said alternative arrangement is not done timely by the agency a penal amount @ Rs. 100/- (Rs. Hundred) only per machine per hour will be deducted from the Contractor’s bill till re-installation of AC machine or as decided by EIC.

15. Building-wise Log Book will have to be maintained by the Supervisor of the entrusted Agency in which the Infra Red thermometer reading of Grill temperature of AC machines and details of servicing will have to be noted down as per actual and duly countersigned by the JE and AE. Log-book format should be taken from concerned Assistant Engineer. ‘ “ 16. The preventive maintenance activities which are to be done twice in a year must be carried out well before expires of the contract. If any service falls due at the time completion, final bill would not be drawn. This should be treated as mandatory. 17. Service challan certifying satisfactory performance of the machines should be submitted to the concerned JE and that has to be countersigned by the AE and to be submitted along with the bill. Grill temperature for the AC machines have to be maintained within 70 degree F ± 2 degree F keeping proper entries in the service challan . 18. Working condition of "TIME SWITCH CONTROLLED STARTER" for each A.C. machine to be checked by the agency everyday without fail & if it is found non functioning or kept in bypass mode, it should be noticed in writing to the AE / JE [Electrical), P.W.D. immediately and should be corrected & recorded in the log book.

19. The interconnection wire between IDU & ODD should have no joint If any joint is found at any time drastic action would be taken against the agency. 20. Taking out of existing machine after carefully dismantling / re-fixing of room air-conditioners as required for maintenance work will be done by the entrusted agency and no extra charges will be provided for that 21. The agency will have to complete the readable "numbering” of A.C. Machines at their own cost for identification within one month of starting the comprehensive maintenance as per direction of the EIC.

BHATTACHARJEE AIR CONDITIONING

M/S SAHARA ENGINEERING