SPECIAL REPAIR / REPLACEMENT OF CENTRAL HEATING SYSTEM AT AF STN THOISE

Amount

Taking down/ dismantling the old unserviceable Central heating sysytem of capacity 600000 Kcal/hr (01 working + 01 standby) complete with all accessories and deposit to MES store yard complete all as specified and directed. Note:- Central heating system (01 working + 01 standby) complete with all accessories shall be measured as 01 Job.

Taking down/ dismantling the old unserviceable AHU system complete with all accessories and deposit to MES store yard complete all as specified and directed.

Taking down/ dismantling the old unserviceable chimney complete with all accessories all as specified and directed.

Taking down/ dismantling the old unserviceable glycol fluid storage tank/oil storage tank of any capacity complete all as specified and directed.

Taking down old unserviceable pipe line of any type/bore including connections complete all as specified and directed.

Supply , installation , commIssioninig and testing of Central Air Heating for MI-17 Hangar with annexe on one side and out side temperature of Thoise area is -31 degree C and inside temp +20 degree C. Air change per hour-02, daily continoues running 18 hour including following items of work:- (a) Supply of oil fired glycol based hot water generator using Kerosene /HSD oil complete with combustion chamber and connected equipment with automatic mono block 3 Ph burner assembly, fired tubes, control panel with sequence controller, photo cell for flame failure detection, HT transfer electrod, blower assembly, electric panel, mounting frame, pressure gauge at inlet and outlet suitable for operation on 50Hz, Three/single phase, 440/220 Volts AC supply, HOT water inlet temperature 75 degree centigrade, HOT water outlet temperature 85 degree centigrade. Capacity 6,00,000 Kcal/hr = (01 Working + 01 Standby). (b) 3 Ph Pressure Jet burner suitable for light oil firing with stepless modulation mechanism all as per manufacturer's design and of required head and capacity. (c) Combustion air fan with drive motor assembly all as per manufacturer's design and of required head and capacity. (d) Control Panel : Dust protected pre wired unit mounted air cooled control panel housing for a 3 Ph burner management system, switch gear consisting of contactor, overload relay, fuses and MCB's etc all as per manufracturer's design and of required capacity. (e) Fuel Pump with drive motor assembly all as per manufacturer's design and of required head and capacity. (f) Oil line : With duplux filters on fuel line and the inlet of fuel pump, Y strainer on fuel line between fuel pump and burner, non return valve on fuel pump outlet and bypass line, non return valve on modulation and circulation line, fuel oil regulation valve for burner modulation , burner solenoid valve, fuel oil pressure guage at burner inlet, fuel pressure guage on by pass line all as per manufacturer's design.

(g) Burner programme complete with matching flame sensor all as per manufacturer design. (h) Hooter mounted on control panel for audible safety alaram as per manufacturer's design. (j) Temprature indicator cum switch for high stake temperature alarm for flue gasses all as per manufacturer's design. (k) Piping work as required inside the plant room , including valves , pressure indicating instrument, insulating material, protective work etc all as per manufacture design. (l) Circulating Pumps : Glycol circulating centrifugal pump suitable for high temperature operation coupled with electric motor drive mounted on common base frame all as per manufracturer's design and of required head and of capacity 116 Cubic metre per hour and 32 metre head total = 04 Nos (3 working + 1 stand by). (m) Expansion tank made of mild steel of capacity 600 litre consisting of buffer vessels, guage assembly and level switches & Nozzle at inlet and outlet for drain and filling, buffer vessel and having overflow/air vent on top all as per manufracturer's design. (n) Glycol mixing & diesel tank filling pump: Glycol mixing & diesel tank filling pump of 1.5 HP single phase 220 V mono block pump for glycol circulation and filing of diesel to diesel tank of 10-15 metre head 50 LPM - 02 Nos. Notes : 1. The complete Central Heating System shall be tested for Phase-I & Phase-II test all as specified and directed. 2. Central heating system (01 working + 01 standby) with all accessories & fittings shall be measured as 01 Job.

Supply, installation, erection & testing of chimney made out of minimum 5mm thick MS, 15 metre high for 6,00,000 Kcal/hr capacity Central Heating System all as per manufacturer's design complete all as specified and directed.

Supply , installation, commIssioninig and testing of Glycol fluid storage tank of capacity 1000 litre made out of 5 mm thick MS sheet with 100mm thick rock wool insulation alongwith 0.4mm thickness aluminium cladding complete with all required fittings duly kept on and including suitable MS frame with foundation, at a height of 4 metre (minimum) from ground, complete all as specified and directed.

Supply , installation, commIssioninig and testing of oil storage tank of capacity 1000 litre made out of 5 mm thick MS sheet duly kept on and including suitable MS frame with foundation, at a height of 4 metre (minimum) from ground complete all as specified and directed.

Supply, installation, commissioning and testing of floor mounted Air Handling Unit of 35,000 CFM nominal capacity double skin type and connected with existing ducting system having following operating parameters, complete all as specified and directed by Engineer-in-Charge:- (a) Air qty (CFM) - 35000 (87.5 TR) (b) SP - 50 mm wg. (c) Fan type - FC (d) Fan dia - 1000 mm (e) Fan RPM - 315 (f) Fan Outlet Velocity - 10 31 M/S (g) Motor Rating - 15 KW (h) Coil area - 70 sq. ft (j) Cooling Coil ROW - 06 (k) Length - 2900 mm (l) Width - 3200 mm (m) Height - 2100 mm

Material and labour running welding of existing ducting system for connecting the AHU to supply and return air ducting with all neccesary supports and fittings complete including cleaning and prepairing the surfaces to be welded together and holding the members in true positions while welding thickness of sheet to be welded exceeding 6 mm but not exceeding 9 mm, all as specified and directed.

Supply in barrels and filling thermic fluid (Glycol) of capacity above 200 degree centigrade temperature as vapourisation temperature suitable for Central Heating System of capacity 600000 Kcal/hr complete all as specified & directed.

Supply and lay MS pipes heavy grade with all fittings laid in floors or fixed to walls and cellings etc of 50mm bore complete all as specified and directed.

All as per Serial item No. 13.00 here-in-before but 80mm bore.

All as per Serial item No. 13.00 here-in-before but 100mm bore.

All as per Serial item No. 13.00 here-in-before but 125mm bore.

All as per Serial item No. 13.00 here-in-before but 150mm bore.

Material and labour insulation of 50mm bore MS pipe with PUF slab 30mm thick with and including applying bituminuous compound and GI cladding with 26 guage GI sheet complete all as specified and directed.

All as per Serial item No. 18.00 here-in-before but of 80mm bore.

All as per Serial item No. 18.00 here-in-before but of 100mm bore.

All as per Serial item No. 18.00 here-in-before but of 125mm bore.

All as per Serial item No. 18.00 here-in-before but of 150mm bore.

EESSI

RAMESH AND CO

ASHOK KUMAR SHARMA