SITC of HVAC System for proposed office complex of commercial Tax Building at Solina Sinagar.

VRF Outdoor Unit (HEAT PUMP TYPE) Supply Installation, Testing & Commissioning of imported modular type Variable Refrigerant Flow/Variable Refrigerant Volume air cooled Outdoor units suitable for cooling and heating, 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 foundation etc. complete as required. The unit shall deliver on 400V +/- 10%, 3 Phase, 50Hz AC power supply. The unit shall be filled with first charge of the refrigerant and ready for use as required. VRF unit and compressor shall be of same OEM make. Latest BEE guideline for AC system/ECBC/GRIHA/AHRI whichever guidelines is more stringent shall be followed based on GRIHA star rating requirement of building. The VRF units shall be able to deliver 100% capacities at AHRI conditions till ambient temperature of 35 deg C. For improvement in efficiency other than ISEER value, the VRF units will with minimum COP of 3.5 at 100% load at AlHRI conditions in heating. The VRF outdoor unit shall have operating range from 0 deg C to 50 deg C in cooling mode & -20 Deg C to 15 Deg C in heating mode and the OEM shall submit catalogue for VRF unit, mentioning the same. In case of one IDU fails or stops working for any reason during the running of the system, the VRF System must have provision or capability to bypass so that the whole circuit should not get affected. The unit shall be complete individual controller and fittings with necessary wiring, connection & termination, painted MS frame for outdoor unit, cowl for ODU etc. The unit shall be suitable to work at the rated capacity at AHRI Conditions and work even at 50°C ambient temperature during Cooling and-10°C during Heating without Tripping

Supply, Installation, Testing and Commissioning of following minimum capacity 4-way compact VRV/VRF Cassette Type Indoor ceiling mounted unit equipped with synthetic washable media pre-filter, fan section with low noise fan/dynamically balanced blower, multispeed motor, coll section with DX Copper coil, electronic expansion valve, outer cabinet, drain pump, grill, necessary supports, vibration Isolation, Corded remote control etc., suitable for operation on single phase 230 V ± 10%, 50Hz AC supply, complete, as required. The Indoor units must shut down upon receiving a singal from the BMS System/Fire Signals. The system shall be capable to adjust air flow as per room requirement automatically. The cooling capacity of indoor unit will be at air Inlet conditions of 27 Degree C DB and 19 Degree C WII temperature. (Make will be same as of Outdoor)

Supply, Installation, Testing and Commissioning of following minimum capacity High wall type Indoor unit equipped with and comfort washable (hot/cold)synthetic media pre-filter, fan section with low noise fan/dynamically balanced blower, multispeed motor, coll 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%, 50Hz, single phase AC supply, complete as required. The Indoor units must shut down upon receiving a singal from the BMS System/Fire Singnals. Thesystem shall be capable to adjust air flow as per room requirement automatically. The cooling capacity of indoor unit will be at air inlet conditions of 27 Degree C DB and 19 Degree C WB temperature, (Make will be same as of outdoor)

Supplying Installation, Testing and Commissioning of Air to Air NS Heat Exchanger without DX Coil of Following Capacities complete in all Respects :- 500 CMH at Static Pressure of 150 Pa (0.6 inches of water column (in wc)

Supply, Installation, testing and commissioning including vaccumiazation and Nitrogen testing of 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 XPLE Class-O tubular insulation/with Class-O closed cell elastomeric nitrile rubber tubular sleeves sections of 19 mm thick insulation for Suction and Liquid lines, all accessories as per specifications etc. as required:

38.1 mm dia (OD) (Hard drawn) with tube thickness 1.62 mm

34.9 mm dia (OD) (Hard drawn) with tube thickness 1.62 mm

31.8 mm dia (OD) (Hard drawn) with tube thickness 1.62 mm

28.58 mm dia (OD) (Hard drawn) with tube thickness 1.2 mm

25.4 mm dia (OD) (Hard drawn) with tube thickness 1.2 mm

22.2 mm dia (OD) (Hard drawn) with tube thickness 1.2 mm

19 mm dia (OD) (Hard drawn) with tube thickness 1.2 mm

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

12.7 mm dia (OD) (Soft drawn) with tube thickness 1.2 mm

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

6.4mm dia (OD) (Soft drawn) with tube thickness 1.2 mm

Drain Piping Providing and fixing rigid CPVC piping complete with fittings, supports as per specifications and duly insulated with 6 mm thick closed cell nitrile rubber insulation

32 mm dia

25 mm dia

Providing & fixing control wiring of 2 core x 1.5 sq.mm copper in PVC conduit pipe of 25 mm dia including providing & fixing suppoert @ 1.5 mt distance CIC where it is not recessed between indoor units and outdoor units.

Supplying and fixing 5 A to 32 A rating, 240/415 V, 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

Single Pole

Single Pole and neutral

Supplying and fixing following rating, Four pole, 415 V, 10 Ka M.C.B in the existing MCB DB complete with connections, testing and commissioning etc. as required.

32 A F.P MCB 10 Ka "C" Curve

Wiring for Circuit/Submain Wiring along with earth Wire with the following Sizes of FRLSPVC insulated copper conductor. single core Cable in surface/Recessed medium class PVC conduit as required.

2 x 2.5 sq.mm + 1x 2.5 sq.mm earth wire

4 x 16 sq.mm + 2 x 6 sq.mm earth wire

Supply, Installation. Testing and Commissioning of Y/T/Multi Joints. Joints shall be of same Original Equipment Manufacturer (OEM) make as of ODUs and IDUS

Indoor Units

Outdoor Multi Joint

Supplying and fixing following way, horizontal type three pole and neutral, sheet steel, MCB distribution board, 415 V, 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)

8 way (4+24), Double Door

Wiring for Circuit/Subinain Wiring along with earth Wire with the following Sizes of FRLSPVC insulated copper conductor, single core Cable in surface/Recessed medium class PVC condult as required

4 x 16 sq.mm + 2 x 6 sq.mm earth wire

Providing and fixing of PVC pipes IS 13592 & fittings (IS: 14735) suitable to rubber ring joints, which includes bends, rubber ring, jointing, junctions, offsets, collar, M.S holder-bat clamps, access pieces .etc. complete including jointing.

200 mm dia. PVC SWR socketed pipe with rubber ring joints as per IS:13592 Type-A

Supply and Making end Termination with Brass Compression Gland and Aluminium Lugs for the Following Sizes of PVC insulated and PVC Sheathed/XLPE Aluminium Conductor Cable of 1.1 KV Grade as Required (Comet)

3.5C x 300 sq.mm (70 mm)

Providing and fitting of snow/bird protection hood in 22 gauge Gl sheet with 1 inch wire mesh duly spray painted for ODUs.

Additional Refrigerant charging R-410A of entire VRV system and commissioning.

Supplying.Installation of Powder Coated Air Diffuser

Supply, Installation, Testing and Commissioning of Centralised Remote Controller which can control maximum 64 groups of indoor units, malfunction code display in the screen, maximum wire length 1000 m and zone controlling

Supplying and Laying of 1 No. PVC/XLPE insulated and PVC Sheathed/XLPE Power Cable of 1.1 KV Grade of Following Sizes in NS the existingCable Tray/RCC/Hume/DWC/Stone ware/Metal Pipe as Required.

3.5C x 300 sq.mm (70 mm)

Supplying and installing following size of perforated painted with powder coating M.S. cable trays with perforation not more than 17.5%, in convenient sections, joined with connectors, suspended from the ceiling with two numbers MS/GI Suspenders i/c hase of suitable size MS/Gl angle, bolts & nuts, painting suspenders, fastener etc as required

150 mm. Width x 50mm. Depth x 1.6mm. Thickness.

100 mm. Width x 50mm. Depth x 1.6mm. Thickness.

Supply, installation, testing & commissioning CPRI Approved of Gl Electrode Earthing with 50mm dia and 3 meter length, with 3mm thick the electrode should be hot-dip galvinised. The GI Electrode shall be pre-filled with Crystalline Conductive Material (CCM). The Gl electrode shall be surrounded with BEE MOIST compound toprovide maximum contact between the electrode and compound should be eco-friendly and having ROHS certification GI Electrode Earthing should be maintenance free and does not require regular manual addition of water GI Electrode and providing and laying of 2 Nos, of 25 x 5 mm G.l strip from G.I rod upto the panel. The earthing pit should be covered with PVC cover.

Supplying and laying 25 mm X 5 mm G.I strip at 0.50 metre 10 5.11 below ground as strip earth electrode, including connection/terminating with G.l. nut, bolt, spring, washer etc. as required