Provision of Modern Air Conditioning Solutions to Improve Workplace Comfort and Energy Efficiency at the DRM Building, Katihar.

1-Provision of Modern Air Conditioning Solutions to Improve

Supply, Lifting Shifting, Erection, Installation, Testing and Commissioning of Outdoor Units of VRF system with Air-cooled condenser suitable for operation at ambient temp. upto 56C, high 1 pressure Scroll Compressors with hermetic motor, assembled and wired in a single package complete, starting controls, safety controls, operating controls and with full feature microcomputer based controller with programming / diagnosis facility. One / All Compressors shall be invertor type based on manufacturer's technology. The system should deliver rated capacity at ambient upto 43°C DB. (a) 22 HP Outdoor Unit. Above/

Supply, Lifting Shifting, Erection, Installation, Testing and Commissioning of Outdoor Units of VRF system with Air-cooled condenser suitable for operation at ambient temp. upto 56C, high 2 pressure Scroll Compressors with hermetic motor, assembled and wired in a single package complete, starting controls, safety controls, operating controls and with full feature microcomputer based controller with programming / diagnosis facility. One / All Compressors shall be invertor type based on manufacturer's technology. The system should deliver rated capacity at ambient upto 43°C DB.(b) 12 HP Outdoor Unit. Above/

Supply, Installation, testing and commissioning of floor / Ceiling mounted type Air High Static type Air Handling unit having sheet metal sectionalized cabinet type having inner skin 24 (0.6 mm) guage plain sheet and outer skin 24 (0.6 mm) gauge thick prepainted sheet. AHU double skin 25 3 mm thick construction fabricated from Aluminium extruded v section frame structure. Pre filter Section with flange type washable Pre filter of 10 micron EU4 grade, DX type Cooling Coil section with 4 /6 row deep DX coil, Drain pan in SS 304, Blower section with DIDW type blower with suitable static pressure, Limit switch & Marine light in fan section. Complete unit shall be suitable for tonnage of (CFM as per Design and Temp & RH to be maintain as per ISHRAE).(a) 4400 CFM AHU. Above/

Supply, Installation, testing and commissioning of floor / Ceiling mounted type Air High Static type Air Handling unit having sheet metal sectionalized cabinet type having inner skin 24 (0.6 4 mm) guage plain sheet and outer skin 24 (0.6 mm) gauge thick prepainted sheet. AHU double skin 25 mm thick construction fabricated from Aluminium extruded v section frame structure. Pre filter Section with flange type washable Pre filter of 10 micron EU4 grade, DX type Cooling Coil section with 4 /6 row deep DX coil, Drain pan in SS 304, Blower section with DIDW type blower with suitable static pressure, Limit switch & Marine light in fan section. Complete unit shall be suitable for tonnage of (CFM as per Design and Temp & RH to be maintain as per ISHRAE).(b) 7100 CFM AHU. Above/

Supply, erection, testing and commissioning of AHU KIT. Above/

Supply, erection, testing and commissioning of AHU KIT Controller. Above/

Supply, erection, testing and commissioning of corded remote controllers for Ductable Units. Above/

Supply and laying of communication cable 2 core 1 sq.mm shielded copper armoured. (RM consider as RMT) Above/

Supply, installation, testing and commissioning of electric control panel for AHUs complete with wiring, earthing, RYB Indicators, The Panel should consist of Incomer MCCB, Contactors, DOL / Star - Delta starters, Relays, Push button (On/Off), Indicating Lamps (Start / Stop / Trip) etc. for Package AC unit, Exhaust unit Motor, Heaters etc. Above/

Supply & erection of return ducting in G.S.S Construction. The ducting shall be sealed with RTV sealant / soldered and rubber gaskets of following thickness with necessary supports, flanges etc.(a) 20 G. Above/

Supply & erection of return ducting in G.S.S Construction. The ducting shall be sealed with RTV sealant / soldered and rubber gaskets of following thickness with necessary supports, flanges etc.(b) 22 G. Above/

Supply & erection of return ducting in G.S.S Construction. The ducting shall be sealed with RTV sealant / soldered and rubber gaskets of following thickness with necessary supports, flanges etc.(c) 24 G. Above/

Supply and installation of 18 G GI volume control damper for main and branch ducts. Above/

Supply, erection, testing and commissioning of GI Non Return Duct Damper. Above/

Supply, erection, testing and commissioning of duct insulation by 13 mm thick insulation with Al. foil. The duct Thermal insulation shall be of cross linked close cell Armacell / equivalent class O. Above/

Supply, erection, testing and commissioning of accoustic insulation by open cell Nitrile rubber of 10 mm thick. The duct insulation shall be of cross linked close cell Armacell / equivalent class O. Above/

Supply and fixing of canvas connections. Square Above/

Supply and fixing of Aluminum powder coated supply air diffuser. Square Above/

Supply and fixing of Aluminium powder coated return diffuser. Above/

Supply, erection, testing and commissioning of Hard Copper refrigerant piping of suitable sizes for pair of gas (suction) & liquid, with 19/13 mm Closed Cell Insulation for Wrapping the copper pipe lines. The Piping system must be supported at specific distance. Above/

Drain piping in hard PVC with all fittings, supports and clamps. The piping shall be suitably insulated with 9mm thick closed cell foam Class O (Nitrile Rubber) stuck with approved adhesive compound. (25/50mm dia as per site requirement). Above/

Supply, erection, testing and commissioning of MS stand for condensing unit & MS tray for copper pipe & cables as per site requirement. Above/

Supply and laying of GI perforated cable tray of size 150 mm x 50 mm x 2 mm Thick. Above/

Supply of Indoor unit 4 way casset type-2.0 TR with electronic expansion valve. Above/

Supply of Indoor unit 4 way casset type-3.0 TR with electronic expansion valve. Above/

Installation, testing & commissioning of Indoor units 4 way casset type-2.0 TR & 3.0 TR. Above/

Supply, laying, running fixing of following sizes of XLPE insulated, PVC sheathed, armoured 1.1 KV grade cables shall be as per IS. (a) 4 core 16 sq.mm CU conductor armoured. Above/

Supply, laying, running fixing of XLPE insulated, PVC sheathed, armoured 1.1 KV grade cables shall be as per IS. (b) 4 core 6 sq.mm CU conductor armoured. Above/

Supply, laying, running fixing of XLPE insulated, PVC sheathed, armoured 1.1 KV grade cables shall be as per IS. (c) 4 core 4 sq.mm CU conductor armoured. Above/

Supply, installation, testing & commissioning of Inverter Split Air Conditioners 1.5 Ton, 30 (BEE star rating-5 star, Coil material-Copper, Echo-friendly refrigerant, Nominal cooling capacity in Ton / (kcal/hr)-1.5 Ton / 4500 kcal/hr) with all accessories as per OEM suitable for operation on 230V AC ,single phase, 50 Hz as per instruction of Engineer incharge at site. Re-mending work should be done after installation of RAC. (with 1 pair outdoor wall stand) Above/

Supply, installation, testing & commissioning of modular power unit complete with 32 31 Amp mini MCB DP "C" series 3kA , 25 amps starter, 25 Amp Socket and 25 Amp plug to be mounted on 6 module GI box, 6 module combined plate concealed on wall and wiring by 6 sq mm, Single Core FR-LSH PVC Insulated Industrial Grade Copper Conductor (Unsheathed) Flexible Cables, 1100 Volts with earth coninuity wire by 1 sq mm copper cable Conforming to IS: 694 to be drawn through Rigid PVC conduit pipe not less than 20 mm dia as per instruction of Engineer incharge at site. Above/

LED Indication Lamp RYB Above/

Supply, laying, commissioning & testing of HDPE pipe 110 mm dia PN-6 grade to be laid partly along the pole /underground with suitable fixing arrangement by MS clamp made of MS flat of size 50x6 mm and suitable size nut, bolt, washer and required bend, joints as per instruction of Engineer Incharge at site. Above/

Supply & erection of earth by 80 mm dia 3 Mtr. Long (medium guage) GI earth electrode, 8 SWG GI wire, GI nuts, bolts including masonry materials for earthing pit, salt, charcoal etc. and construction of earth pit covered with cement concrete plate having locking arrangement and watering pipe as per drg. No.- PCEE/ELG/DRG/2024/1 Dated:- 30.09.2024. Above/

Supply & execution by CC foundation (1:3:6) of suitable size 2 x (4.0 m x 2.0 m x 2.0 m) including plastering by morter ratio (1:4) including digging of soil/surface as per instruction of Engineer incharge at site. (For installation of VRF Outdoor Unit) Above/

Supply, installation, testing & commissioning of onload changeover switch 400 amps Four Pole with Sheet Steel Enclosure as per instruction of Engineer Incharge at Site. Above/

Supply, installation, testing & commissioning of MCCB FP 125 amps, 36 kA, Ics=100% Icu as per instruction of Engineer Incharge at Site.