WBPWD/EE/PMED/NIQ-42/e-Q /2026-2027

a) 1.5Tr. Split type AC Machine.- 8 Nos. (Quantity- 8 Nos x 12 Months = 96 Nos)

b) 2.0Tr. Split type AC Machine.- 32 Nos. (Quantity- 32 Nos x 12 Months = 384 Nos)

c) 3 Tr 3 Phase Tower A.C. Machine- 16 Nos. (Quantity- 16 Nos x 12 Months = 192 Nos)

d) 4.5 Tr 3 Phase Tower A.C. Machine- 04 Nos. (Quantity- 4 Nos x 12 Months = 48 Nos)

Allocation- A) Kharagpur S.D.Office & Treasurey: i) Administrative Building- a) 1.5 Tr. Split type A.C.- 04 Nos b) 2.0 Tr Split type A.C- 14 Nos ii) Treasury Office :- a) 1.5 Tr. Split type A.C-- 04 Nos b) 2.0 Tr . Split type A.C-- 07 Nos B) Kharagpur PWD Compound, 2.0 Tr Split type A.C ---- 03 Nos C) Kharagpur Sub-Divisional court. i) 2.0 Tr. Split type A.C-- 08 Nos ii) 3.0 ton 3 Phase Tower AC machine--16 Nos iii) 4.5 ton 3 Phase Tower AC machine-- 4 Nos

Objective The guiding philosophy of this contract shall be “Public Interest”, and all activities shall be carried out accordingly. The objective of Comprehensive preventive and corrective maintenance is: • To prevent fire hazards arising from RAC installations • To ensure safety of occupants and the general public • To minimize breakdowns and associated downtime and to ensure performance at desired efficiency. Any incident due to poor maintenance, especially fire hazards, shall be viewed seriously and the contractor shall be held fully responsible.

A. Scope of Work The scope includes routine, preventive, corrective and Breakdown maintenance of the all Window, Split, Concealed Split, cassette, ductable, Tower & Package type AC machines, starting from Power supply point (Timer/Starter) to complete AC unit, within the premises, including but not limited to Supply, repair, and replacement of all spare parts and components. A.1 General Requirement 1.1 Spare Parts & Components and activities Covered The contract includes repair/replacement of: • Compressor • Blower motor / fan motor • Condenser & evaporator coils • P.C.B. and Power Supply Card, wherever applicable. • Copper tubing and piping • Capacitors (mandatory P2/S2 type, IEC 60252-1 compliant) • Relays, thermostats, contactors • Remotes • Air filters • Electrical wiring and controls related to A.C. machines • Sheet metal body parts • Nitrile Rubber Insulation of different sizes • Minor Duct repair including G.I. Sheet, Thermal and Acoustic Insulation, mason covering for outside ducts etc. • Refrigerant gas • Drain Pump All replaced materials must be: • New and OEM approved quality • Approved by Engineer-in-Charge (EIC) prior to installation

The agency shall: 1.2 Materials & Consumables Provide all consumables required for maintenance, including: • Cotton waste, insulation tape, Ferrules and lugs, Lubricants &grease, cleaning agents, Soaps etc. • Fasteners, nuts& bolts, Drain pipe fittings, Copper pipe insulation, Contact cleaner spray • Belts for AHU / ductable blowers, Refrigerant • All Logbooks and/ or Register as mentioned in this document.

1.3 Tools & Instruments Provide and maintain calibrated tools and instruments, including: • Digital multimeter, Digital Clamp-on ammeter • Insulation resistance tester, Thermal Imaging Scanner • Pressure gauges, Infrared thermometer and Digital Psychrometers • Decibel Meter or SPL (Sound Pressure Level) Meter • Air velocity meter / anemometer • Coil cleaning chemical sprayer • Fin comb for condenser/evaporator fins • Vacuum cleaner / blower for cleaning indoor and outdoor units • High-pressure Water jet pump for condenser coil cleaning • Vacuum pump and Refrigerant charging hose set • Nitrogen cylinder with regulator for pressure testing • Brazing set with gas cylinder • Drain line flushing pump • Complete set of screwdrivers, Line Tester, Pliers & Stripper, spanners, Allen keys, adjustable wrenches, Hackshaw & Hammer, Electric Drill machine. • Insulated ladder • Chain pulley block (for heavy equipment where required)etc.