SITC of 4 x 4.0 TR Floor Mounted ACs in Server Room of SIT Bldg, IIT Delhi

Amount

SUB HEAD 1 (SITC)

TOWER AC: Supply Installation, Testing & Commissioning of 4.0 TR (nominal capacity) tower (floor standing evaporator) type air cooled (condenser) air conditioning unit suitable for cooling, having all hermetically sealed inverter type Rotary /Scroll Compressor(s), with R-410 Refrigerant, vibration isolators, with suitable foundation etc. complete as required. The unit shall be suitable to work on 230 / 400 V+/-10%, 3 / 1 Phase, 50Hz AC power supply. The unit shall be filled with first charge of the refrigerant and ready for use as required. Material of evaporator and condenser units should be copper complete with condenser and evaporator unit, installation kit, remote with cells, manual complete as required.

Supply, Installation, testing and commissioning including vaccumiazation and Nitrogen testing of following nominal sizes of soft / hard drawn copper refrigerant piping for tower AC system, complete with fittings, with suitable adjustable ring type hanger supports, jointing / brazing including accessories, insulated with XPLE Class-O tubular insulation / with Class-O closed cell elastometric nitrile rubber tubular sleeves sections of specified thickness as given below for Suction and Liquidlines, all accessories as per specifications etc. as required : NOTE: (1) The copper piping and piping circuit should be with minimum number of joints, which shall be attained by: (a) Using one end expanded tubes (b) bending the tubes instead of using elbow joints wherever 90 degree bending is required (2) Piping should be routed at site in such a manner, that brazed joints in the refrigeration piping are kept to a minimum (3) The makes of tube fittings shall be same as that of tubes (4) The thickness of fittings used shall be same as that of the pipe

9.5 mm dia (OD) (Soft drawn) with tube thickness 1.2 mm with 19 mm thick insulation

15.86 mm dia (OD) (Soft drawn) with tube thickness 1.2 mm with 19 mm thick insulation

GI TRAY SUPPORT OUTSIDE: Supplying and installing following size of perforated Hot Dipped Galvanised Iron Cable tray (galvanisation thickness not less than 50 microns) with perforation not more than 17.5% in convenient sections, joined with connectors, suspended / supported from the ceiling / wall with GI suspenders including GI bolts and nuts, GI C-Channels, etc. including GI protective sheet covering outside the room as required. (Only for outdoor portion)

375 mm width x 50 mm depth x 1.6 mm thickness

DRAIN PIPE: Supplying and laying of ISI marked CPVC pipe of 32 mm dia for draining of sweated water from AC evaporator (indoor) unit including providing tee, joints, elbows, supports, etc. insulated with XLPE class - O tubular insulation / woth Class-O closed cell elastomeric nitrile rubber tubular sleeves sections of 19 mm thick etc. complete as required.

Providing and fixing 4 mm dia dia copper wire on surface or in recess for loop earthing along with existing surface / recessed conduit / submain wiring / cable as required.

Fabricating, Providing and fixing M.S. iron frame fabricated with M.S. C-channel of size 100 mm x 50 mm x 6 mm (thick) for resting the condenser unit on the roof / floor of the building duly supported from the bottom as required including painting the framework etc. complete as required.

Supplying and laying of following size FRLS industrial flexible copper conductor cable of 1.1 kV grade conforming to IS694:2010 of following sizes including making connections etc. as required. (Acceptable make: Polycab / Havells / Gloster / RR Kabel / Nicco / Skytone / Finolex / KEI / Universal / Anchor)

4 core x 2.5 sqmm

4 core x 6 sqmm

Supplying and making end termination with brass compression gland and tinned copper lugs for following size of pvc insulated and pvc sheathed / XLPE copper conductor cable of 1.1 kV grade as required.

4 core x 6 sqmm

Supplying and charging of refrigerant (R410) as applicable for AC unit for topping up where pipe lines are lengthy etc. as required.

Deinstallation of all (4 nos.) old existing Condenser unit, Evaporator unit refrigerant pipes, electrical cables, all supports, and dismantling all accessories and removing from their position 3rd & 4th floor as it is with the help of chain pulley or any other means) including mending good the damages, thorough cleaning of site, etc. as directed by the Engineer-in-charge. (N.B. : This is an occupied building / Lab. Utmost care shall have to be taken for least disturbances, arrangement of dust proof cover whatever required be provided. All time coordination with the building / Lab authority is essential, work may have to be undertaken beyond office hours also)

SUB HEAD - 2 (AMC) (Supplementary agreement shall be formed) under ARMO Fund

Comprehensive (Routine, Preventive and Breakdown) maintenance of 4 x 4.0 TR tower type AC including its all accessories, condensers, evaporator units, time to time checking of refrigerant leakage, electrical circuits, etc. for smooth operation of the entire AC units during the defect liability period of 1 year after date of commissioning as per maintenance schedule. (No payment shall be made separately for this period): 1st Year

Comprehensive (Routine, Preventive and Breakdown) maintenance of 4 x 4.0 TR tower Type AC including its all accessories, condensers, evaporator units, time to time checking of refrigerant leakage, electrical circuits, etc. for smooth operation of the entire AC units after defect liability period of 1 year from the date of commissioning as per maintenance schedule. Any breakdown shall be attended within 4 hours of reporting. Spare parts required during breakdown maintenance shall be arranged and replaced by the Contractor. This is applicable for the whole system of AC units installed. (N.B.: 01 Job means during a period of one year)

2nd year (For 12 months)

3rd year (For 12 months)

4th year (For 12 months)

5th year (For 12 months)

6th year (For 12 months)

(-) Less buy back of old existing Floor Monuted AC unit including evaporator and condenser unit, refrigerant pipes, etc. as is where is basis.[Reserve Price is Rs.28,000.00 for 4 units. Bidder can not quote below this rate]