Electrical Installation and renovation work for Doctors Rest Room and Toilet at Main Building of Murshidabad Medical College and Hospital --- SITC of AC Machine.

Amount

VRV Out Door Units (Cooling Only - Top Discharge Type)

Supply Installation, Testing & Commissioning of modular type Variable Refrigerant Volume air cooled Outdoor units suitable for cooling and heating, having all hermetically sealed inverter type Scroll Compressor(s), minimum two compressors for above 14 HP modules, microprocessor based controller, top discharge type condensing unit(s), with R 410 A Refrigerant, 4D Inverter technology, VRT smart control (Fully Automatic Energy-saving Refrigerant Control), vibration isolators, with suitable foundation etc. complete as required. The unit shall deliver the rated capacity at AHRI conditions and work even at 49 Degree C ambient temperature without tripping. The unit shall be suitable to work on 400V +/- 10%, 3 Phase, 50Hz AC power supply. The ODU shall have low noise condenser fans with extrenal static pressure of the outdoor unit shall be more then 75 Pa to avoid hot air recirculation, auto address setting, auto check function for connection error and complete with indoor and outdoor units with individual controller and with fittings etc. The unit shall be filled with first charge of the refrigerant and ready for use as required. The EER of ODU mentioned shall be minimum 11.49 at 100% load at 35⁰C ambient temperature (AHRI Condition). OEM Make: Daikin/Hitachi/carrier

Capacity: 28 HP

GAS TIGHT JOINT (DGT) of equivalent Carrier/Hitachi

Supply, Installation of following minimum capacity non-brazed connection suitable for piping. Pipes can be joined easily and quickly without brazing or using any special tools. It meets stringent safety requirements and provides leak-free tightness among various substantial benefits.

SDGTB1209

SDGTB2825

SDGTB12

DX AHU's

Supply, Installation of Double skin Floor Mounted type Air Handling Unit with, sectionalized, made of extruded Al section frame sytructure of 43±2 mm thick panels, Consisting of thickness 0.6 mm PPGI outside layer and 0.6mm inside GI sheet insidelayer with polyurethane foam (PUF) insulation of density 40±2 Kg/m³ factory injected between them by injection moulding machine complete with forward/backward curved blower, 6 row deep Dx. cooling coil with aluminium finned copper tubes (tube thickness not less than 0.41 mm & 12-13 Fins/Inch), filter section with 50 mm thick metal viscous or washable synthetic type pre-filters.

The AHU shall be completed with stainless steel drain pan with 19 mm thick closed cell class O nitrile insulation, fire retardant canvas connection and necessary vibration isolation arrangement etc.

The motor shall be TEFC drive motor (IE2) suitable for 415±10% volts, 50 Hz, 3 phase, AC supply. The complete AHU shall confirm to specification & face velocity across cooling coil shall be limited to 500 FPM maximum and fan outlet velocity not more than 1870 FPM.

The AHU price shall included of wired remote controller.

The Static pressure will be calculated by HVAC consultant/contractor on basis of duct layout.

DX AHU / 23.0 TR / 9000 CFM / TSP 450 (Pa) Make Reputed, to be approved by EIC

Supply installation of Control box and expansion valve kit (AHU KIT) for integration of AHU and VRV Out Door Units to complete the system as required as follows:-

AHU's KIT (Expansion Valve + Control Box)

REF. JOINTS (Y Joints)

Supply Installtion, Testing and commissioning of factory built Y shape Ref. Joints. Ref. Joints is consist of 2 nos. copper joints as required to connect the above outdoor units and indoor units.

REFRIGERANT COPPER PIPING - FOR VRV SYSTEM

Supply & Installation of interconnecting following sizes of refrigerant copper pipe work of following outer diameter, insulated with 19/13 mm thick closed cell electrometric Nitrile rubber tubular insulation between each set of indoor & outdoor units . The pipe dia upto 19mm shall be soft seamless & above 19mm dia shall be hard seamless. All piping inside the room shall be properly fixed/supported with suitable size of clamp/ M.S. hanger and all external piping shall run in GI. cable tray (Price Extra) etc. as reqd.

34.9 mm O.D. with insulation of 19 mm

28.6 mm O.D. with insulation of 19 mm

19.1 mm O.D. with insulation of 19 mm

12.7 mm O.D. with insulation of 13 mm

CONTROL & TRANSMISSION WIRING

Supplying and laying of ISI marked FR pvc insulated flexible copper cable of size 2 core x 1.0 sqmm of including making connection etc. for communication between indoor and outdoor unit and other units, etc. through conduit complete as required.

Supply and Testing of N2 Pressure Gas Charge With proper flushing and leack test of all ref-copper pipe including joints.

Commissioning of VRV system including topping R410A gas as per site requirements. Refrigerant shall be environmental fiendly R410A.

Providing & fixing of PVC Pipe complete with fittings, supports as per specifications and duly insulated with 9 mm thickness Class O of closed cell nitrile rubber as per direction of Engineer-in-charge & specifications enclosed as reqd.

65 mm dia

AIR DISTRIBUTION

Rectangular GSS Duct work

Supply, fabrication, Installation, testing and commissioning of site fabricated rectangular ducts using G.I Sheets (with 120 gsm galvanization). The price shall include flanges, supports, sealent (neoprene gasket), hangers, access door etc.

Sheet Thickness Max. Duct Size

26/24/22 gauge GSS ≤ 750 mm

ACOUSTIC LINING OF DUCT

Supply and fixing of duct accounstic lining inside the ducts with Class-1 open cell nitrile sheet (density 140-160kg/cum) pasted inside the duct using low VOC adhesive and harnessed with GI NUT Bolt.

10 mm Thickness.

CANVAS CONNECTION

Supply Installation testing comissioning of Fire retardent Canvas connection for Air conditioning and ventilation equipment .

ELECTRICAL

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.

Less cost (to be deduction from Final Bill) for Dismantled old AHU, Copper pipe, Condensing unit, to be taken away by the bidder Rs. 95000/- (Rs. Ninety Five Thousand Only).

GITANJALI ELECTRONICS AND ELECTRICALS (BID ID -6304045)

INDIAN SERVICE (BID ID -6306821)