SITC of 6 x 7 TR Microprocessor based air cooled Package AC units for IAF sites at Sarsawa 1 and Sarsawa 2, Saharanpur.

PART-A ( SITC and misc. items) 1. Supply of 7 Tr. ( Sensible cooling capacity) Microprocessor based high precision air cooled Package airconditioner with electronically commutated(EC) evaporator fan complete as per detailed specifications enclosed, upward/downward flow as per site requirements. The length of refrigerant pipe for hot nand cold lines shall be included up to 12 mtrs. in this item. Additional extra refrigerant pipe length shall be paid as per item-3.

2. Installation, testing and commissioning of indoor and out door units, pressure testing, supplying and charging the refrigerant R407C/R410A i/c providing MS structure for out door units made out of solid channels/ angles/ flats i/c cutting, welding, painting and acceptence testing as per NIT etc. complte as required.

3. Supply and ixing of following size 16 SWG copper refrigerant piping on the MS perforated tray etc. complete as required i/c supply and fixing of MS perforated tray of 1.6 mm thick along with horizontal and vertical bends, reducers, tees, crosss memebers other accessories duly suspended from the ceiling with MS suspenders/ on wall i/c painting etc. complete as required. (a) Hot gas Line (Size 1-1/8") single run

(b) Liquid Gas line( Size 7/8") single run

4. Supply and fixing of 3x2.5 sqmm. Size PVC insulated, sheathed copper conductor armoured cable on the MS perforated tray with saddles etc. as required.

5. Supply and fixing 25x3 mm GI strip on surface or in recess for loop earting as required.

6. Supply and fixing GI pipe of 40 mm dia (B Class) on surfaceor in recess i/c all acessories complete as required.

PART-B ( MAINTENANCE ITEMS) 1. Comprehensive maintenance of 7 Tr. HPAC PKG. units which include routine preventive & breakdown maintenance for a period of 4 years i/c supply of refrigerant gas and other consumables, repiair/ replacement of worn out items with minimum down time and warranty/ guarantee of repaired/ repleced items after completion of one year of guarantee period. Rates to be quoted year wise as per following:- (a) During first year of operation after warranty period(C1)

(b) During 2nd year of operation after warranty period. (C2)

(c) During 3rd year of operation after warranty period. (C3)

(d) During 4th year of operation after warranty period. (C4) For financial evalution purposes maintenance charges for 4 years will be taken discounting @12% per year to arrive Net Present Value as follows:- Value of operation charges for evalution purpose C= (893xC1)+(797xC2)+(712xC3)+(636xC4)