WBPWD/SSE/SWEC/NIQ189/2025-26

Thorough servicing of existing split type Air Conditioning machines including cleaning of indoor & outdoor unit, washing of air filter, condenser coil cleaning with water/chemical, checking of electrical connection, tightening of terminals, checking of gas pressure, lubrication of blower motor, testing of thermostat, checking of drain system, trial run and satisfactory operation complete as directed by EIC.

Thorough servicing of existing ductable type Air Conditioning machine including cleaning of indoor unit / air handling unit (AHU), cleaning of evaporator coil and blower assembly, cleaning or replacement of air filters, checking and cleaning of supply and return air ducts and grills, cleaning of outdoor condensing unit, condenser coil cleaning with water/chemical, checking of refrigerant gas pressure, checking and tightening of electrical connections and control wiring, lubrication of blower motor bearings where required, checking of thermostat and control panel, checking of drain tray and drain line, testing of airflow, complete trial run and ensuring satisfactory operation as directed by the EIC.

Supplying and fixing nitrile rubber insulation tube (Class-O / equivalent) of approved make with insulation thickness 9 mm over refrigerant copper pipe including necessary adhesive, joint sealing tape, finishing etc. complete as required and as directed by EIC.

Supply and fixing Class'O' 13 mm thk Nitrile Rubber insulation for duct as per direction of EIC.

Supplying and foxing 415 V 63 A 4 pole MCB Isolator on din rail of existing DBs and necessary connection.

Repairing of Duct hole by cementing as per direction of EIC.

Supplying and charging refrigerant gas (R-22 / R-32 / R-410A as applicable) in existing split type Air Conditioning machines/Ductable AC machine

Triennial Comprehensive Maintenance of 02 nos. X 11 TR at OHC store & 2 nos. X 16.5 TR. At Drug store,Ductable type Split Air Conditioner Unit at DRS Building.

For the 1st year (12 months x 55 tr = 660 )

For the 2nd year (12 months x 55 tr = 660 )

For the 3rd year (12 months x 55 tr = 660 )

Triennial Comprehensive Maintenance of 01 nos. X 2.0 TR at Dy. CMOH Room & 1 nos. X 2.0 TR at Store-In-Charge Room,Split Air Conditioner Unit at DRS Building.

For the 1st year (12 months x 4 tr =48 )

For the 2nd year (12 months x 4 tr = 48 )

For the 3rd year (12 months x 4 tr = 48 )

It may be noted that any kind of breakdown related to these AC systems must be attended within 2 hours and restoration of the same must be done within next 24 hours.

TERMS AND CONDITIONS FOR AC MAINTENANCE:-

A) Routine checking and servicing (Preventive maintenance). The rate are inclusive of all taxes. i) Checking & servicing of all mechanical & electrical parts of the A.C.Machine, refrigerant system, condenser & cooling system etc. twice in each month. ii) Checking of performance of each machine, Load Current (Amp) , CFM, grill temperature¸ room temperature etc. twice in a month & these shall be noted, in Log Book. All entries be countersigned by the Agency and the concerned Junior Engineer in the Log Book. iii) In every three months, the Outdoor unit should be thoroughly cleaned and washed by vacuum cleaner and jet spray. iv) All machine shall be numbered according to their location, made and as per direction of E.I.C & Log book be maintained accordingly. v) Cleaning of filters twice in each month. vi) Lubricating the bearing of the motor & fan as and when required vii) Checking the electrical incomer upto incoming M.C.B incl. starter, switches etc. in each month. Any fault located should be brought to the notice of the Asstt. Engineer & Junior Engineer immediately. viii) Checking & repairing of all parts which have not been specified but necessary to keep the machine satisfactory running condition.

B) Overhauling: i) Through overhauling of the machine part by part once in a year. ii) Cleaning & painting of the machine body, base tray etc. once in a year. iii) Cleaning & discalling of condenser unit, cooling coil etc. and gas leak test once & when required in a year. iv) Overhauling shall preferably be done during winter season and must be noted in the Log Book.

C) Supply & Repairing: This comprehensive contract covers preventive & corrective maintenance of A.C. machine/ spare parts as required so as to keep the A.C. machine operative/ functioning round the clock and for ensuring uninterrupted & trouble - free performance of the equipment. i) Replenishing refrigerant required as a result of a leak in system arising out of fair wear & tear as per requirement. ii) Supply of refrigerant shall be made as & when required by the Agency in his own cost for all AC Machine.. iii) Repair of microprocessor controls & to be replaced free of cost for all AC Machine. iv) Replacement capacitor (P2 type) incl. of all spare parts, including compressors , shall be made by the Agency for smooth running of the machine at his cost for all AC Machine. v) Filters be changed except nylon filter once in a year & the new once shall be approved by the EIC. vi) Replace/ repair of all spare parts of ductable split type (Like- Refrigerent, blower motor, remote sensing unit, controler, ducting, damper unit, all kind of valve, communication card, contactor and other electrical accerise etc) are to be made agency own cost. vii) No major parts shall be removed without permission of concerned Asstt. Engineer. Challan shall be obtained from Junior Engineer while taking away machine or parts from site for repairing and materials shall be returned/ repaireed within three days to worksite in Co’s challan.

D) Attendance of break down: i) Break downs to be attended by experienced AC machines immediately after receiving initiation from the Junior Engineer, Asstt. Engineer and the authority concerned. ii) AC machine must be provided with cell phone with contact no. iii) Nature of break down with date shall be recorded in the Log Book.