Niet For Cassette Air Conditioners At Iim Shillong - Supply Of Ac, Accessories & Installation Works 2 Supply, Installation, Testing & Commissioning ( Sitc ) Of Cassette Air- Conditioners ( Approved Make Only ) Having Energy Efficient Twin Rotary , shillong-Meghalaya

Niet For Cassette Air Conditioners At Iim Shillong - Supply Of Ac, Accessories & Installation Works 2 Supply, Installation, Testing & Commissioning ( Sitc ) Of Cassette Air- Conditioners ( Approved Make Only ) Having Energy Efficient Twin Rotary Or Scroll Compressors, Condenser And Evaporator Coil Efficient Heat Exchanger, Aesthetically Finished Indoor Units, Automatic Temperature & Flow Control, Including Supply & Filling Of Required Quantity Of Eco Friendly Refrigerant ( Preferable R32 ) To Maintain Prescribed Temperature Levels As Recommended By The Manufacturer, Cordless Remote Along With Facility Of Interfacing Central Remote Control Unit To Integrate Multiple Acs Etc., Complete Having 3Tr Nominal Capacity - Single - Phase, 230 V, Inverter - Cassette Type 4 Way Ceiling Mounted Air Conditioners With 5 Star And Built-In Drain Water Pump With Water Level Sensor And Switchrating Along With All Accessories And Workmanship Including Installation Work Shall Conform To All Mechanical And Electrical Safety Standards As Per Relevant Is Specifications. The Equipment Shall Be Properly Earthed ( Connected To The Earthing System Of The Electrical Cabling Of The Premises ) . Utmost Care Should Be Taken While Laying Refrigerant And Drain Water Pipe Lines Such That The Possibility Of Condensation And / Or Condensate Drain Water Spillage Into The Conditioned Space Is Completely Eliminated. Proper Warranty Certificate To Be Provided After Installation ( Preferred Makes : Lg, Daikin, Voltas, Blue Star, Lloyd ) 3 Supply, Installation, Testing & Commsiioning Of 5 Kva Stabilizers For 3 Tr Ac Unit With Suitable Wall Mount Option. Having Operating Voltage: 195V-280V, Time Delay: Itds 3 Min ± 20 Sec. 4 Refrigerant Cooper Pipes 5 / 8 Size 0.8 Mm ( Iswg 21 ) Wall Thickness With All Accessories & Fitting For Cassette Ac Laid Between Indoor & Outdoor Unit As Per OemS Specifications. It Shall Be In Total Clamping Manner Above False Ceiling & In Total Concealed Manner Below False Ceiling Level. From The Structural Ceiling It Should Hanged Or Shall Be Fixed On Wall / Beam Etc. With Clamps & The Distance Between Two Clamp Shall Be Less Than 1 Meter. It Shall Not Be Placed Over The False Ceiling Nor It Shall Be Fixed With False Ceiling Members. 5 Refrigerant Cooper Pipes 3 / 8 Size 0.8 Mm ( Iswg 21 ) Wallthickness With All Accessories & Fitting For Cassette Ac Laid Between Indoor & Outdoor Unit As Per OemS Specifications.It Shall Be In Total Clamping Manner Above False Ceiling & In Total Concealed Manner Below False Ceiling Level. From The Structural Ceiling It Should Hanged Or Shall Be Fixed On Wall / Beam Etc. With Clamps & The Distance Between Two Clamp Shall Be Less Than 1 Meter. It Shall Not Be Placed Over The False Ceiling Nor It Shall Be Fixed With False Ceiling Members. 6 Supply, Fitting & Testing Of Closed Cell Class 1 Fire Returdent Elastomeric Nitrile Insulation Foam Tube With 13Mm Wall Thickness For Covering Of Copper Pipes Of 5 / 8 Size With All Fittings & Acessorries Etc. Aluminum Foil Membrane Shall Be Applied To Provide Resistance Against Breakdown Due To Uv Radiation For Exposed Portion Of The Rubber Insulation With Nitrogen Testing. 7 Supply, Fitting & Testing Of Closed Cell Class 1 Fire Returdent Elastomeric Nitrile Insulation Foam Tube With 13Mm Wall Thickness For Covering Of Copper Pipes Of 3 / 8 Size With All Fittings & Acessorries Etc. Aluminum Foil Membrane Shall Be Applied To Provide Resistance Against Breakdown Due To Uv Radiation For Exposed Portion Of The Rubber Insulation With Nitrogen Testing. 8 Supply, Fitting & Testing Of 4 Core 2.5Mm Multi Strand Pvc Insulated Copper Cable For Communication For Indoor To Outdoor Units. 9 Providing & Fixing Of Prefabricated M.S. Hanging Stand For Cassette Air-Conditioner Indoor Units. It Shall Be Made Out Of Heavy Gauge M.S Channels, Angles, Flats Etc. Of Appropriate Size & Thickness Duly Powder Coated With Anti-Corrosive Paint. The Entire Item Has To Be Executed As Per The Oem Recommendation & Site Conditions. Highest Safety Standard Need To Be Provided For The Hanger. 10 Providing & Fixing Of Pre-Fabricated M.S. Stand For Cassette Air-Conditioner Outdoor Units. It Shall Be Made Out Of Heavy Gauge M.S Channels, Angles, Flats Etc. Of Appropriate Size & Thickness Duly Painted With Anti-Corrosive Paint. The Entire Item Has To Be Executed As Per Recommendation Of The Oem & Site Conditions. 11 Supply, Fitting & Testing Of Closed Cell Class 1 Fire Returdent Elastomeric Nitrile Rubber Insulated Upvc Pipes Of 1 Inch Size With Acessorries For Drain Line For Various Ac Units In Clamping Manner Above False Ceiling & In Concealed Manner Below False Ceiling Level. From The Structural Ceiling It Should Hanged Using Self Threaded Rods Or Shall Be Fixed On Wall / Beam Etc. With Clamps & The Distance Between 2 Clamps Shall Be Less Than 1 Meter. It Shall Not Be Placed Over The False Ceiling Nor It Shall Be Fixed With False Ceiling Members. It Shall Be Laid Required Gradient For Easy Disposal Of The Drain Water & Testing Shall Be Done Before Filling. Final Drainage Must Be Connected Suitably To Rain Water Outlet As Per The Site Conditions. 12 Supply & Testing Of Extra Refrigerant Gas Charging In 3 Ton Cassette Ac. 13 Central Control Remote Solution With 5” Touch Controller, Individual Controller Lock, Yearly Schedule With Password Protected Operation Option Along With Required Accessories And Fittings. The Controller Must Be Able To Automatically Control Each Ac As Per The Requirement Of Specific Cooling Demand. 14 Sitc Of Stand-By Pump Of About 80 L / H Pumping Capacity Including The Supplying, Laying, Testing & Connection Of Common Condensate Line Connecting All The 8 Units With A Single Point Discharge Of Condensate Water. This Must Take Care Of Condensate Water Disposal In Case Of Failure Of One Or More Of The In-Built Condensate Water Pumps. 15 Supply, Installation, Testing And Commissioning Of A Dedicated Treated Fresh Air ( Tfa ) Unit Of 1800 Cfm. Complete With Merv-13 ( 95% Down To 5 Microns ) , Ie3 Motor, Didw Centrifugal Backward Curved Fan With Efficiency> 75%. The Ahu Shall Be Provided With View Port, Door Limit Switch & Marine Lights With Led Lamps. The Tfa Shall Have An Independent, Dx Type Cooling And Dehumidification System Of Not Less Than 5 Tr Nominal Capacity, With 4-Row Evaporator Coil With Copper Tube And Aluminum Fins. A Suitable Outdoor Unit With Twin Rotary / Scroll Compressor, Copper Tube Condenser Coil, Fan, Controls Etc. It Shall Have Suitable Condensate Drain Pan And Other Accessories. The Refrigerant Used In The Tfa Shall Be Low Global Warming Potential Refrigerant ( E.G. R-32, R-410A ) . The Tfa Shall Be Fixed Securely With Suitable Supply Duct And Return Path. Treated Fresh Air From Tfa Shall Be Supplied Through Suitable Duct Work Into The Conditioned Space Through 4 Ceiling Suspended Diffusers With Volume Control Damper With Plenum Box, Each Having 450 Cfm Capacity. The Return Air Shall Be Collected Through 4 Ceiling Diffusers Of 375 Cfm Capacity And The Return Air Need To Be Thrown Out To The Atmosphere With A Rectangular Box Inline Fan Of 1500 Cfm 10 Mm Swg Capacity. The Plenum Above The False Ceiling Can Be Used For Collecting The Return Air Of Tfa. The Ceiling Supply / Return Diffusers Shall Be Either Square Type Or Circular Type. They Shall Be Fixed Securely To The False Ceiling With Suitable Support From The Roof. The Location Of The Supply And Return Tfa Diffusers Shall Be Such That They Are Aesthetically Appealing And Provide Uniform Distribution Of Fresh Air Without Causing Draft And Without Interfering With The Cassette Units. The Supply And Return Air Carrying Ducts Should Be Sized Such That The Maximum Air Velocity Does Not Exceed 5 M / S. 16 Electrical Works 17 Providing Laying Connection Testing & Commissioning Of The Following Sizes Of 1100V Pvc / Xlpealuminum Conductor Armored Underground Cable & Overall Pvc Sheathed Cable As Per Isi Code In Trenches Including The Cost Of Digging Of Trenches, Sand Cushioning With Laying Etc. And Refiling The Same In Layers Or By Supporting Them In Wall And All Other Accessories As Required. 18 ( I ) With 3.5 Core 70 Sq. Mm 19 Drawing Of 3 Phase Main Line 4 Wire With Dgsd Approved Vir Or Pvc Cable 660V Grade Copper Conductor In Casing Capping With All Accessories 20 ( I ) With 2X2.5 Sqmm Copper Conductor 21 ( Ii ) With 4X4sqmm Copper Conductor 22 ( Iii ) With 4X10sqmm Copper Conductor 23 Supplying Fitting & Fixing Of Distribution Boardtpn Db-Vtpn For Dx3 Mcb Db 24 ( A ) Ip43 #1K 09 With Metal Door 8 Way 8+24 Module 25 Supplying Fitting & Fixing Of Moulded Case Circuit Breaker ( Mccb ) Of The Following Amp Capacity 26 ( A ) With Breaking Capacity Of 38Ka Of Four Pole 160 Amp 27 Supplying & Fixing Of Load Kontaket Miniture Circuit Braker Dx3mcbS For Ac Application Till 63A 28 ( I ) 6-32 Amp Double Pole 415V 29 Supplying Fitting & Fixing Of Dx3 Isolators For Ac Applications Upto 125A 30 ( A ) Four Pole 415V 63Amp 31 Supplying & Fitting Of 20A Heavy Duty Ready To Use Plug & Socket Board With 2 Pole Mcb With Earth Point. ( Similar To Havells Cat. Dhddcdp0252020003 / Srcd Wocp Dboxx Steel Encl ) 32 Supplying & Fitting Of Tp&N Enclosure With 30A, 3 Pole And Earth Metel Plug & Socket For Tp Mcb ( Similar To Havells Cat Dhdputn030 ) 33 Enclosure For 415V Adjustable Thermal & Fixed Magnetic 4 Pole Moduled Case Circuit Breaker ( Prefeably Havells Cat. No. Ihelfp L Frame Fp ) 34 Civil Works 35 Various Civil Works For Modification Of False Ceiling, Repairing Of Holes & Plasters, Painting, Making Rain Shed For Connection Points & Voltage Stabilizers Near Outdoor Units, Carpentry Works. Etc.

INR 590 /-

INR 43860.0 /-

INR 21.93 Lakhs /-

Name of Work:

Sl. No.	Item Description
1	Supply of AC, Accessories & Installation Works
2	Supply, Installation, Testing & Commissioning (SITC) of Cassette air- conditioners (approved make only) having energy efficient twin rotary or Scroll compressors, condenser and evaporator coil efficient Heat exchanger, aesthetically finished indoor units, automatic temperature & flow control, including supply & filling of required quantity of Eco friendly refrigerant (preferable R32) to maintain prescribed temperature levels as recommended by the manufacturer, cordless remote along with facility of interfacing Central remote Control Unit to integrate multiple ACs etc., complete having 3TR Nominal capacity - Single - Phase, 230 V, Inverter - Cassette type 4 Way Ceiling mounted Air Conditioners with 5 Star and built-in drain water pump with water level sensor and switchrating along with all accessories and workmanship including installation work shall conform to all mechanical and electrical safety standards as per relevant IS specifications. The equipment shall be properly earthed (connected to the earthing system of the electrical cabling of the premises). Utmost care should be taken while laying refrigerant and drain water pipe lines such that the possibility of condensation and/or condensate drain water spillage into the conditioned space is completely eliminated. Proper warranty certificate to be provided after installation (Preferred makes : LG, Daikin, Voltas, Blue Star, Lloyd )
3	Supply, Installation, Testing & Commsiioning of 5 KVA stabilizers for 3 TR AC unit with suitable wall mount option. Having operating voltage: 195V-280V, Time delay: ITDS 3 Min ± 20 sec.
4	Refrigerant Cooper Pipes 5/8 size 0.8 mm (ISWG 21) Wall thickness with all accessories & fitting for Cassette AC laid between indoor & outdoor unit as per OEM"s specifications. It shall be in total clamping manner above false ceiling & in total concealed manner below false ceiling level. From the structural ceiling it should hanged or shall be fixed on wall / beam etc. with clamps & the distance between two clamp shall be less than 1 meter. It shall not be placed over the false ceiling nor it shall be fixed with false ceiling members.
5	Refrigerant Cooper Pipes 3/8 size 0.8 mm (ISWG 21) Wallthickness with all accessories & fitting for Cassette AC laid between indoor & outdoor unit as per OEM"s specifications.It shall be in total clamping manner above false ceiling & in total concealed manner below false ceiling level. From the structural ceiling it should hanged or shall be fixed on wall / beam etc. with clamps & the distance between two clamp shall be less than 1 meter. It shall not be placed over the false ceiling nor it shall be fixed with false ceiling members.
6	Supply, fitting & testing of Closed Cell Class 1 Fire returdent elastomeric Nitrile Insulation Foam Tube with 13mm Wall thickness for covering of Copper Pipes of 5/8 size with all fittings & acessorries etc. Aluminum foil membrane shall be applied to provide resistance against breakdown due to UV radiation for exposed portion of the rubber insulation with Nitrogen testing.
7	Supply, fitting & testing of Closed Cell Class 1 Fire returdent elastomeric Nitrile Insulation Foam Tube with 13mm Wall thickness for covering of Copper Pipes of 3/8 size with all fittings & acessorries etc. Aluminum foil membrane shall be applied to provide resistance against breakdown due to UV radiation for exposed portion of the rubber insulation with Nitrogen testing.
8	Supply, fitting & testing of 4 Core 2.5mm Multi Strand PVC insulated Copper Cable for Communication for Indoor to Outdoor Units.
9	Providing & Fixing of prefabricated M.S. Hanging Stand for cassette air-conditioner indoor units. It shall be made out of heavy gauge M.S channels, angles, flats etc. of appropriate size & thickness duly powder coated with anti-corrosive paint. The entire item has to be executed as per the OEM recommendation & site conditions. Highest Safety standard need to be provided for the Hanger.
10	Providing & Fixing of pre-fabricated M.S. Stand for cassette air-conditioner outdoor units. It shall be made out of heavy gauge M.S channels, angles, flats etc. of appropriate size & thickness duly painted with anti-corrosive paint. The entire item has to be executed as per recommendation of the OEM & site conditions.
11	Supply, fitting & testing of Closed Cell Class 1 Fire returdent elastomeric Nitrile rubber insulated UPVC Pipes of 1 inch Size with acessorries for drain line for various AC units in clamping manner above false ceiling & in concealed manner below false ceiling level. From the structural ceiling it should hanged using self threaded rods or shall be fixed on wall /beam etc. with clamps & the distance between 2 clamps shall be less than 1 meter. It shall not be placed over the false ceiling nor it shall be fixed with false ceiling members. It shall be laid required gradient for easy disposal of the drain water & testing shall be done before filling. Final drainage must be connected suitably to rain water outlet as per the site conditions.
12	Supply & testing of Extra Refrigerant Gas charging in 3 Ton Cassette AC.
13	Central Control Remote Solution with 5” Touch Controller, Individual Controller Lock, Yearly Schedule with password protected operation option along with required accessories and Fittings. The Controller must be able to automatically control each AC as per the requirement of specific cooling demand.
14	SITC of stand-by Pump of about 80 l/h pumping capacity including the supplying, laying, testing & connection of common condensate line connecting all the 8 units with a single point discharge of condensate water. This must take care of condensate water disposal in case of failure of one or more of the in-built condensate water pumps.
15	Supply, installation, testing and commissioning of a dedicated Treated Fresh Air (TFA) Unit of 1800 CFM. complete with MERV-13 (95% down to 5 microns), IE3 motor, DIDW centrifugal backward curved fan with efficiency> 75%. The AHU shall be provided with view port, Door limit switch & Marine lights with LED lamps. The TFA shall have an independent, DX type cooling and dehumidification system of not less than 5 TR nominal capacity, with 4-row evaporator coil with copper tube and aluminum fins. A suitable outdoor unit with twin rotary/scroll compressor, copper tube condenser coil, fan, controls etc. It shall have suitable condensate drain pan and other accessories. The refrigerant used in the TFA shall be low global warming potential refrigerant (e.g. R-32, R-410A). The TFA shall be fixed securely with suitable supply duct and return path. Treated fresh air from TFA shall be supplied through suitable duct work into the conditioned space through 4 ceiling suspended diffusers with Volume control damper with plenum box, each having 450 CFM capacity. The return air shall be collected through 4 ceiling diffusers of 375 CFM capacity and the return air need to be thrown out to the atmosphere with a rectangular box inline fan of 1500 CFM 10 mm swg capacity. The plenum above the false ceiling can be used for collecting the return air of TFA. The ceiling Supply / Return diffusers shall be either square type or circular type. They shall be fixed securely to the false ceiling with suitable support from the roof. The location of the supply and return TFA diffusers shall be such that they are aesthetically appealing and provide uniform distribution of fresh air without causing draft and without interfering with the cassette units. The supply and return air carrying ducts should be sized such that the maximum air velocity does not exceed 5 m/s.
16	Electrical Works
17	Providing laying connection testing & commissioning of the following sizes of 1100V PVC/XLPEaluminum conductor armored underground cable & overall PVC sheathed cable as per ISI code in trenches including the cost of digging of trenches, sand cushioning with laying etc. and refiling the same in layers or by supporting them in wall and all other accessories as required.
18	(i) With 3.5 Core 70 Sq. mm
19	Drawing of 3 Phase Main Line 4 Wire with DGSD approved VIR or PVC Cable 660V grade Copper Conductor in casing capping with all accessories
20	(i) with 2x2.5 SqMM Copper conductor
21	(ii) with 4x4SqMM Copper conductor
22	(iii) with 4x10SqMM Copper Conductor
23	Supplying fitting & fixing of Distribution BoardTPN DB-VTPN for DX3 MCB DB
24	(a ) IP43 #1K 09 with metal door 8 Way 8+24 Module
25	Supplying fitting & fixing of Moulded case Circuit Breaker (MCCB) of the following Amp capacity
26	(a ) With breaking Capacity of 38kA of Four Pole 160 Amp
27	Supplying & fixing of Load Kontaket Miniture Circuit Braker DX3MCB"s for AC application till 63A
28	(i) 6-32 Amp Double Pole 415V
29	Supplying fitting & fixing of DX3 Isolators for AC applications upto 125A
30	(a ) Four Pole 415V 63Amp
31	Supplying & fitting of 20A Heavy Duty ready to use Plug & Socket Board with 2 pole MCB with Earth point. (Similar to Havells Cat. DHDDCDP0252020003/ SRCD WOCP Dboxx Steel Encl )
32	Supplying & fitting of TP&N Enclosure with 30A, 3 pole and Earth Metel Plug & Socket for TP MCB (Similar to Havells Cat DHDPUTN030)
33	Enclosure for 415V Adjustable Thermal & Fixed Magnetic 4 Pole Moduled Case Circuit Breaker (Prefeably Havells Cat. No. IHELFP L Frame FP)
34	Civil Works
35	Various Civil Works for Modification of False Ceiling, Repairing of Holes & Plasters, Painting, Making Rain Shed for Connection Points & Voltage Stabilizers near Outdoor Units, Carpentry works. etc.