Public Works Department Tender

The work shall be carried out as per CPWD specifications HVAC Works 2017 as amended up to date i/c manufacturers specifications and as per instructions of Engineer in-charge.

The scope of work shall be following: a) The contractor shall execute the work i.e. "Comprehensive Maintenance and Operation of digital scroll /twin rotary, Variable Refrigerant Flow VRF/VRV Air conditioning ". b) The scope of maintenance include running of complete air-conditioning system including all items related with comprehensive maintenance of the VRF / VRV system with specified maintenance schedule. Repair & replacement of defective components, providing of spares and all other associated accessories which are not covered otherwise and attention of all types of defects, necessary for smooth operation of the VRF / VRV system to the satisfaction of Engineer-in Charge.

The Contractor should also carry out any other schedule jointly decided by Engineer-in-charge and the Contractor for any equipment of the VRF / VRV system to ensure smooth and trouble free operation. The successfully bidder shall deploy within the scope of the work (quoted rates) atleast two numbers experienced, technically AC mechanic from 10 AM to 5 PM or as required at site for operation of the entire system i/c quick response and action

Comprehensive & routine maintenance:- (a) Preventive & Breakdown maintenance including Monthly, Quarterly and Yearly maintenance of the VRF /VRV system. Comprehensive maintenance also includes repair of defective system with provision of spares as required. No extra payment will be made for supply/repair/replacement of spares. (b) Maintenance of complete VRF / VRV system so that performance of the plant is satisfactory. (c) Indoor Units (IDUs) of various type/size complete with, internal control/power wiring, regular cleaning of filters, fan motor & any other associated work for proper & specified functioning of indoor units. (D) Outdoor Units (ODUs) of various capacities with associated compressor, supply/ filling ofcompressor oil, etc., Inverters, Digital Scroll system, electronic/PCB cards, MCB /MCCB, IGBT,control /power wiring, oil recovery system, heat exchanger, condenser motor fan, internal refrigeration circuit & any other associated work for proper & specified functioning of outdoor units. (C) Refrigerant piping along with all joints etc. including detection/repairing of leakage, gas recharging/ topping including supply of refrigerant etc. (d) The repair work shall be carried out in a professional manner. This shall also include restoration of insulation after repair. Any other associated work for proper & specified functioning of airconditioning system. The scope also includes supply & charging of refrigerant due to any unforeseen circumstances. (e) Condensate drain water pipe cleaning, detection/repairing of pipes for any leakages, insulation etc. Any other associated work for proper functioning of drain water disposal system. (f) All control & power wiring between indoor & outdoor units. Any other associated work for proper & specified functioning of air conditioning system. (g) Maintenance & upkeep of sub-AC panels on the roof including switchgear, cabling from sub-AC panel up to outdoor units, consumables etc (excluding incoming cables to sub-AC panels) (h) Any other item/activities associated with proper functioning of comprehensive maintenance complete air conditioning system deemed to have been included in the scope of work. (i) In order to attend breakdowns of the AC system, the engineering works (eg. False ceiling, any kind of structural/masonry work, opening and closing) required if any, shall be in the scope of work. (j) While replacement of MCB at ODU; all incoming and outgoing connections shall be in the scope of work.

Deployment of maintenance staff:- The contractor will depute technically qualified, competent and experienced staff in adequate number. for the comprehensive maintenance. It may however be noted that normally scheduled maintenance should be carried out on Saturday & Sunday or any Gazetted Holidays for which the contractor will give at least 24 hours advice to the Engineer-in-Charge. (a) The work is to be carried out as per CPWD Specification /International Norms /Standards and insuch a manner that all premises always look Neat & Clean. (b)The attendance of Contractors staff will be monitored through JE(E)

Attending to complaints: (a) List of minimum spares to be available at site for smooth operation shall be prepared by the Contractor and Engineer-in-charge within 07 days of start of work and accordingly all spares shall be available within 15 days of start of Contract (b) All defects and deficiencies should be rectified promptly after lodging of complaint. The complaint can be lodged through telephonic message or through complaint register kept at site in designated place. (c)The successful bidder has to furnish their call center number, contact number, mobile number of the responsible person i/c e-mail ID to lodge the complaint and for quick action also. (d) Response Time (Max) – 1 hour to reach the site of complaint. (e) Rectification Time (Max.) - 03 Hrs. If Max. ODUs (except leakage, compressor, condenser failure) are involved. (f)Rectification Time (Max.) - 12 Hrs. If 04 to 10 IDU and ODUs, 10 each, (except leakage,compressor, condenser failure) are involved. (g) Leakages in refrigerant circuit, compressor, condenser and IDU/ODUs beyond 10 - 48 hrs. (h) The quantum of work involved should be decoded within 30 minutes of the complaint received and recorded jointly with the representative of the Contractor and Engineer-in-charge. (i) Above healthy spares, refrigerant & necessary programmable PCB cards shall be maintained in sufficient quantity to reduce down time of the system. The spares shall be of OEM/same make. Where the Make of item is not identified/ defined, it shall be of reputed make with the approval ofEngineer in-charge.

Maintenance schedules (a) In addition to attending to complaints, the contractor will be required to carry out prescribed monthly, quarterly, half yearly, yearly maintenance schedules. The maintenance schedules andthe work to be done in each schedule & report format shall be jointly decided by the Engineer-in-Charge & the Contractor. (b) A proper record of maintenance scheduled should be kept; the Contractor & Engineer-in-Charge shall jointly record the details of maintenance schedule in the register meant for it. The register shall be updated and ready for check at any time.

Penalty for delay in Operation and Comprehensive Maintenance work: (a) As soon as any defect of technical nature is noticed by the Contractors staff, it shall be informed to the Engineer-in-Charge in written with details, whether it is of minor or major fault and possible time of rectification. (b) A penalty will be imposed in case any complaint remains unattended after the rectification time is over, as under: (c) @ Rs. 100/- per IDU per 03 hrs., (d) @ Rs. 500/- per 16 hp per 12 hrs., (e) @ Rs. 1,000/- per 16 hp per 24 hrs, (f) After report of failure, if the maintenance personnel does not start work at site and advice the action plan to attend the failure, penalty @ Rs. 100/- per hour or part thereof shall be levied to ensure that proper cooling is maintained in the entire premises and there shall be no discomfort to the occupants. (g) After 7 days of non-rectification of a failure without any valid & justifiable reason, the cost of damage if any, due to failure of system will be sole responsibility of the contractor and the cost of damage of the same shall be borne by the contractor. After which PWD has right to carry out the work on risk and cost of contractor without further intimation. (h) Percent security will be released after expiry of one year warranty period and 2.5 percent will be released after expiry of six year. (i) Schedule of work for comprehensive maintenance work is also attached. Firms are requested to quote the comprehensive maintenance rates so that a supplementary aggrement may be framed.