Replacement of Existing Package AC by VRF/VRV type AC system at SHA area in Bagdogra Airport along with operation for 07 Years and AICMC for 05 Years. (After 02 years of DLP).

Amount

Supply, Installation, Testing and Commissioning of variable Refrigerant Flow modular type air conditioning system complete with indoor & outdoor units with individual cordless controller as per the following capacities of the IDU and ODU.

Supply, Installation, Testing & Commissioning of modular type Variable Refrigerant Flow air cooled Outdoor units suitable for cooling, having all hermetically sealed inverter type Scroll Compressor(s), microprocessor based Controller, top discharge type condensing unit(s), with R 410 A Refrigerant, vibration isolators, with suitable concreate foundation etc. complete as required. The unit shall deliver the rated capacity at AHRI Conditions and work even at 53°C ambient temperature without tripping. The unit shall be suitable to work on 415V +/- 10%, 3 Phase, 50Hz AC power supply. The unit shall be filled with first charge of the refrigerant and ready for use as required.The COP at AHRI conditions shall not be less than 3.8 The capacity of VRF/VRV unit is minimum 220 HP (ODU to be supplied in multiple of VRF/ VRV units, maximum upto 3 type unit sizes)

Supply, installation, testing and commissioning of minimum 4 TR capacity 4-way flow VRF Cassette Type Indoor ceiling mounted Indoor unit equipped with fan section with low noise fan/dynamically balanced blower, multispeed motor, coil section with DX copper coil, electronic expansion valve, outer cabinet, cord less remote control, drain pan, necessary accessories etc., suitable for operation on 230 V ± 10%, 50 Hz, single phase AC supply, complete as required. The unit shall have automatic force shut down provision in case of fire on receiving signal from BMS System. The cooling capacity of indoor unit will be at air inlet conditions of 27 Degree C DB and 19 Degree C WB temperature.

Supply, Installation, testing and commissioning including vaccumiazation and Nitrogen testing among following nominal sizes of soft/hard drawn copper refrigerant piping for VRV/VRF system, complete with fittings, with suitable adjustable ring type hanger supports, jointing/brazing including accessories, insulated with Nitrile Rubber Class-O tubular insulation/with Class-O closed cell elastomeric nitrile rubber tubular sleeves sections of specified thickness as given below for Suction and Liquid lines, all accessories as per specifications etc. as applicable for the system :

9-11 mm dia (OD) (Soft drawn) with 19 mm thick insulation

12-13 mm dia (OD) (Soft drawn) mm with 19 mm thick insulation

14-16 mm dia (OD) (Soft drawn) with 19 mm thick insulation

17-20 mm dia (OD) (Hard drawn) mm with 19 mm thick insulation

21-23 mm dia (OD) (Hard drawn) with 19 mm thick insulation

24-26 mm dia (OD) (Hard drawn) with tube thickness 1.2 mm with 19 mm thick insulation

27-29 mm dia (OD) (Hard drawn) with tube thickness 1.2 mm with 19 mm thick insulation

30-32 mm dia (OD) (Hard drawn) with tube thickness 1.6 mm with 19 mm thick insulation

33-35 mm dia (OD) (Hard drawn) with tube thickness 1.6 mm with 19 mm thick insulation

36-39 mm dia (OD) (Hard drawn) with tube thickness 1.6 mm with 19 mm thick insulation

40-42 mm dia (OD) (Hard drawn) with tube thickness 1.6 mm with 19 mm thick insulation

43-45 mm dia (OD) (Hard drawn) with tube thickness 1.6 mm with 19 mm thick insulation

46-55 mm dia (OD) (Hard drawn) with tube thickness 1.6 mm with 19 mm thick insulation

Supply, Installation, Testing and Commissioning of Refnet Joints & Branch Distributors for Indoor & Outdoor units as applicable to the system design as per OEM recommendation.

Providing & fixing rigid UPVC piping complete with fittings, supports as per specifications and pre insulated with 6mm thick closed cell elastomeric nitrile rubber tubular thermal insulation.

25 MM Dia

32 MM Dia

Supplying and drawing 3C x 0.75 Sqmm FRLS PVC shielded copper in the existing surface/ recessed steel/ PVC conduit as required.

Supplying and drawing 3C x 1.5 sqmm of FRLS PVC insulated copper conductor, single core cable in the existing surface/ recessed steel/ PVC conduit as required.

Supplying and fixing of 25 mm size of Steel conduit along with accessories in surface/recess including painting in case of surface conduit, or cutting the wall and making good the same in case of recessed conduit as required.

Providing and fixing 6 SWG dia G.I. wire on surface or in recess for loop earthing along with existing surface/ recessed conduit/submain wiring/ cable as required.

Supply of 4 CORE 35 sq.mm. XLPE insulated and PVC sheathed FRLS aluminium conductor armoured Power Cable of 1.1KV grade, confirming to IS 7098, Part-I 1988 with up to date amendments and confirming to technical specifications.

Laying and fixing of one number PVC insulated and PVC sheathed / XLPE power cable of 1.1 KV grade of Upto 35 sq. mm (clamped with 1mm thick saddle) on wall surface as required.

Supplying and making end termination with brass compression gland and aluminium lugs for following size of PVC insulated and PVC sheathed / XLPE aluminium conductor cable of 1.1 KV grade as required.

a) 4 X 35 sq. mm (32mm)

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 from the ceiling with G.I. suspenders including G.I. bolts & nuts, etc. as required.

150 mm width X 50 mm depth X 1.6 mm thickness

300 mm width X 50 mm depth X 1.6 mm thickness

Refrigerant-410a Supply , charging & Leakage testing of refrigerant - 410a in additional copper piping circuit.

Lifting/lowering & shifting of ODUs & IDUs as per site requirement.

Supplying and fixing 12 way double door, single pole and neutral, sheet steel, MCB distribution board, 240 volts, on surface/ recess, complete with tinned copper bus bar, neutral bus bar, earth bar, din bar, interconnections, powder painted including earthing etc. as required. (But without MCB/RCCB/Isolator)

Supplying and fixing 5 amps to 32 amps rating, 240/415 volts, 10 kA, “C” curve, miniature circuit breaker suitable for inductive load of following poles in the existing MCB DB complete with connections, testing and commissioning etc. as required.

Supplying and fixing following rating, double pole, 240/415 volts, 10KA,"C" curve miniature circuit breaker suitable for inductive load of following poles in the existing MCB DB complete with connections, testing and commissioning etc. as required. a) Double Pole, 63 Amp

Supplying and fixing single pole blanking plate in the existing MCB DB complete etc. as required. a) Blanking plate

Supply and fixing of single skin rectangular Inline fan having dia 260 mm with forward Curved SISW single phase Fan class-F ,IP-44 at Bagdogra Airport as per technical specification.

Supply and fixing of single skin rectangular Inline fan having dia 280 mm with forward Curved SISW single phase Fan class-F ,IP-44 at Bagdogra Airport as per technical specification.

SITC of outdoor type LT Panel, made out of 14 SWG CRCA sheet steel double door, totally enclosed, IP-55, protection free standing, floor mounting, dust and vermin proof, compartmentalized, powder coated painting suitable for operation on 3 Phase and neutral, 415V, 50 Hz AC supply system with bus bars extensible on both sides, entire panel shall have a common Copper earth bus bar of size 25 mm x 6 mm at the rear with 2 Nos. earth stud, interconnections with suitable size of copper leads/ solid aluminium strips. (Panel shall conform to IEC 61439 & of Form-4b construction).

Incomer:

02 No. MCCB, 400 Amps, 4 pole, 35 kA (Ics=100% Icu) with adjustable setting, microprocessor release with O/C & S/C protection.

01 No. MCCB, 400 Amps, 4 pole, 35 kA (Ics=100% Icu) with adjustable setting, microprocessor release with O/C & S/C protection as Bus Coupler

Busbars:

4P aluminum bus bars of minimum 600 A capacity with heat shrinkable coloured sleeves i/c SMC bus bars supports at required intervals complete for cross section, size supports & their spacing etc. for withstanding fault level of 35 KA for 1 sec.

Instruments & accessories:

2 Set of LED type phase indicating lamps (RYB) and 3 set LED type Indicating lamps for ON-OFF controlled by 2Amp MCBs .

4 Pole SPD's of type 2 class C with both the Incomer.

3 Set Rotary operating mechanism and terminal extension spreaders with door interlock for all the MCCB's.

Mechanical & Electrical Interlocking system for Incomer & Bus Coupler.

Outgoing:

06 Nos MCCB(Ics=100% Icu), 100 Amps, 4 Pole, min 25 kA with adjustable setting , Thermal Magnetic release shall have Variable Thermal (O/L) & Variable Magnetic (S/C) protection,including connections etc as required with LED type ON-OFF Indicating lamp controlled by 2Amp MCBs .

SITC of outdoor type totally enclosed double door junction box having IP-55 protection, made out of 14 SWG CRCA sheet steel ,free standing, floor mounting with angle supports, dust and vermin proof, powder coated painting includes 4P aluminum bus bars of minimum 200 A capacity with heat shrinkable coloured sleeves i/c SMC/DMC bus bars supports at required intervals complete for cross section, size supports & their spacing etc. for withstanding fault level of 35 KA for 1 sec. Provision of 04 nos. 4P, 63 amp MCB should there as outgoing, interconnected with bus bar with 10 sq.mm size copper leads suitable for operation on 3 Phase and neutral, 415V, 50 Hz AC supply system with 2 Nos. earth stud, etc complete as required.

To execute the work opening and closing of desired number of existing 2X2 mettalic false celing and cutting of false celing to fix cassete IDUs. All the false celing need to be fixed with professional civil man power as required suitable as per site requirement.

Dismantling of existing 160 TR package AC unit along with Indoor package Unit,ODU, GI Ducting,connection piping ,cable etc and keeping in AAI store in AAI premises as per the direction of EIC complete as required.

Supply of 3.5 core x 240 sqmm XLPE insulated and PVC sheathed aluminium conductor armoured Power Cable of 1.1KV grade, confirming to IS 7098, Part-I 1988 with up to date amendments and confirming to technical specifications.(The outer sheath shall be FRLS.)

Laying of one number PVC insulated and PVC sheathed / XLPE power cable of 1.1 KV grade of size Above 185 sq. mm and upto 400 sq. mm (clamped with 40x3mm MS flat clamp) on wall surface as required.

Supplying and making end termination with brass compression gland and aluminium lugs for 3.5 core x 240 sqmm of PVC insulated and PVC sheathed / XLPE aluminium conductor cable of 1.1 KV grade as required.

Supplying and drawing of 3 x 10 sq.mm size FRLS PVC insulated copper conductor, single core cable in the existing surface/ recessed steel/ PVC conduit as required.

Supplying and making straight through joint with heat shrinkable kit including ferrules and other jointing materials for 3.5C x 240 sq.mm. size of PVC insulated and PVC sheathed / XLPE aluminium conductor cable of 1.1 KV grade as required.

Providing and fixing of 4Pole, 630A, 50 KA (Ics=100% Icu) MCCB with adjustable setting, microprocessor release with O/C & S/C protection along with rotary handle in the existing cubicle panel boards (i/c. neessary modification) including provision of suitable size bus bar extensions / arrangements with providing digital KWH Meter with maximum demand load and current display RS485 module of class-0.5 accuracy with suitable range of cast resin CT including making connections etc as required. 3 Nos of LED type phase indicating lamps (RYB) with 2Amp MCBs should be provided in panel board compartment complete as required.

Providing and fixing 25 mm X 5 mm G.I. strip on surface or in recess for connections etc. as required.

All Inclusive Comprehensive Maintenance Conrtract (AICMC) of above VRF/VRV AC System for 5 years (after defect liability period of 2 years) as per the direction of EIC complete as required.

Year - 1 (5.34% of SITC cost)

Year -2 (5.00% cumulative enhancement on Year - 1 AICMC cost)

Year-3 (5.00% cumulative enhancement on Year - 2 AICMC cost)

Year -4 (5.00% cumulative enhancement on Year - 3 AICMC cost)

Year -5 (5.00% cumulative enhancement on Year - 4 AICMC cost)

Annual Operation Contract of complete VRF/VRV AC System through engaging one Skilled AC Operator & Two Sem-skilled per day at site for 365 days for the daily operation of VRF/VRV AC system including minor maintenance and rectification of the system and daily recording of log-books, etc complete as required. [The Manpower engaged for the said job shall be paid by OEM following Minimum Wages and compliance of statutory norms (like EPF, ESIC & Bonus etc) as per Govt. regulations up to date. Difference of minimum wages i/c EPF, ESIC & Bonus will be reimbursed by AAI on actual basis as per submission of documentary evidence]

Year - 1 (7.52% of SITC cost)

Year-2 (0.06% cumulative enhancement on Year - 1 Operation cost)

Year-3 (0.06% cumulative enhancement on Year - 2 Operation cost)

Year-4 (0.06% cumulative enhancement on Year - 3 Operation cost)

Year-5 (0.06% cumulative enhancement on Year - 4 Operation cost)

Year-6 (0.06% cumulative enhancement on Year - 5 Operation cost)

Year-7 (0.06% cumulative enhancement on Year - 6 Operation cost)

Maxcool Solutions Pvt.Ltd (BID ID -761805)