Installation of Split AC at Computer Room of Nadia Highway Division-II, PW Roads Directorate under Kalyani Electrical Sec-I, PWD.

Amount

Supply & delivery of 1.5 ton capacity 2 Star rating fixed speed Split Air Conditioners with Rotary Compressor, Rated Cooling Capacity 5200Watt, Indoor unit Airflow 777 m3/hr., Refrigerant R-410a,Refrigerant control by Expansion valve, Both condensing & cooling coil must be made in copper tubes. Main power supply must be in outdoor unit of 220 volt. [Mitsubishi Electric- JP18VF/ Equivalent of O-General]

Installation the outdoor & indoor unit of Wall Mounted Split Air Conditioners, after laying & Connecting the pipe line testing the leak by nitrogen gas pressure (minimum 400 PSI )and vacuuming the unit properly (Minimum -30 PSI) by double stage vacuum pump, after release the gas testing the Split type Room Air conditioner also supply & fitting adjustable Power coated paint iron bracket.

Supply & laying of following sizes Refrigerant Copper Pipe (Minimum thickness 0.9 mm and Make - Royku / Totaline / Mandeep) with insulation by nitril rubber of minimum thickness 9 mm [Make Aroflex / Acoflex] also raping the insulation & Copper wire with GKB Gold non adhesive tape.

6.35 mm (1/4") dia

15.88 mm (5/8") dia

Supply & laying 3/4" heavy type P.V.C. pipe for Water Drainage

Supply and fixing of timer control switch for controlling AC machines made of suitable size MS sheet duly Power coated paint with IP - 43 protection with front door locking arrangement with all connection and comprising with following accessories including necessary connections and earthing attachment on angel iron frame on wall / embedding in wall as per instruction of EIC. a) 25A DP RCBO, 30 MA - 1 no. (Make - Legrand / ABB / Schneider). b) 25A Two Pole Contactor - 1 no. (Make - Legrand / ABB / Schneider) c) 9-14A Over load Relay - 1 no. (Make - Legrand / ABB / Schneider) d) Daily & weekly programmable basis digital time switch, min switching time 1 min, 25 ON/OFF programs, 6 yrs. Battery backup, settable DST & key pad lock features. - 1 no. (Make - Legrand / ABB / Schneider) e) Start / Stop push button - 1+1 No. (L&T/ Siemens) f) RED/Amber LED indication Lamp, 240V AC - 1+1 Nos. (L&T / Siemens)

S & F of 415 V, 16-32 A per way 6 Way double door HTPN MCB Distribution Board with IP-43 protection (Make - Legrand / ABB Elegance / Schneider), concealed in wall after cutting the wall & mending good the damages to original finish incl. inter connection with suitable size of copper wire and neutral link & provision for earthing attachment ---- [14 / D- 10 ]

S & F of 240/415 V, 6/10/16/20/25/32 A SP/DP/TP/FP MCB of breaking capacity 10 kA & C characteristics (Make - Legrand / Siemens / Havells Metalica / ABB / ABB/ SIEMENS/ LEGRAND) / Schneider) on din rail of VTPN, HTPN and SPN DBs and necessary connection. [7/D-6]

240 V, 16/25 A SP MCB

415 V, 63 A FP MCB

415 V, 63 A TP MCB

S & F of 240 V, 20 A Piano key type Plug Socket (Anchor) on sheet metal switch board incl. S & F 100 mm x 100 mm x 65 mm MS (16 SWG) switch board and bakelite top cover of 3 mm thick by brass screws after making housing for socket by cutting bakelite cover and making necessary connections as required (For AC Machine). [17(b) / E-6]

Supply & Fixing of 240 V, 16 A, 3 pin plug top with indicator (Anchor) with necy. Connections.

Distribution wiring with following sizes 1.1 KV Gr. single core stranded 'FR' PVC insulated & unsheathed copper wires (Make - Finolex / RR Kabel / Havells) in 20 mm size MMS PVC rigid conduit 'FR' (Precision make) incl. fittings, necy. fixing materials and necy connection as required - [1(a-i)/E-14]

2 x 4 sq. mm + 1 x 2.5 sq. mm ECC (For AC Machine)

4 x 16 sq. mm + 2 x 10 sq. mm ECC in 2 nos 25 mm dia rigid conduit. From VTPN DB to HTPN DB. [1 (g1) / E- 9 & 7(b)/E-16]

Finishing of the following PVC insulated wire ends by socketting with pin/ring type copper sockets and insulated tapes etc., including supplying sockets, tapes. [9/F-5]

2 x 4 sq. mm + 1 x 2.5 sq. mm

4 x 16 sq. mm + 2 x 10 sq. mm

ARATI ENTERPRISE

REFRICON