`AMENDMENT No. 4 TO TENDER DOCUMENTS. Tender No.: RITES/CO/B&A/EE/DTEH-Rohtak Air Cooled Chiller System of HVAC work

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1 `AMENDMENT No. 4 TO TENDER DOCUMENTS Tender No.: RITES/CO/B&A/EE/DTEH-Rohtak Air Cooled Chiller System of HVAC work S.No. Clause of tender 1 1) S.H A, Fashion Design BOQ Item no. 1 a.iii), 2) S.H A, Film & TV BOQ item no. 1.iii) 2 Film & TV BOQ Item No. 1.i) 3 Associated Works (Civil Works) Page No. As Per Tender Amended & to be read as As the performance of The performance test in the chillers mentioned the manufacturer place herein does not fall shall be witnessed by under the ARI/Eurovent RITES/DTEH as per certification program so Eurovent/ARI condition. the chiller shall be tested ARI certificate is not in the factors and the required. performance test shall be One chilling machine witnessed by will be offered for pre RITES/DTEH delivery inspection. In representatives as per the event, this unit procedure laid down by cleared for dispatch ARI/Eurovent at four after inspection, point loads at tender balance machine can design conditions. also be dispatched. However in case the unit offered for inspection fails, in that case all the balance 92 of tender document IkW/ TR of the 100 TR Air cooled screw chiller at full load shall not be more than 1.3 at Std. Design Conditions ASSOCIATED WORKS CIVIL WORKS All necessary Major civil works like making and braking of walls / wall openings, slab cut outs, shafts; Foundation blocks for AHUs are in the scope of civil agency. Low side HVAC contractor shall provide the necessary details, drawings and marking at site well in advance with exact size/type etc., The complete units will also be tested. IkW/ TR of the 100 TR Air cooled screw chiller at full load shall not be more than 1.50 at Std. Design Conditions ASSOCIATED WORKS CIVIL WORKS All necessary Major civil works like making and breaking of walls / wall openings, slab cut outs, shafts and making good the same is covered in the scope of agency.. HVAC Foundation work for all equipments such as chilling machine, pumps, AHUs & HWG etc. (including all

2 coordination with civil agency for the required civil works is Low side HVAC contractor responsibility. At no circumstances, it is not acceptable the reason for delay of work execution due to pending civil works. However the minor civil works required like closing of left out openings, chipping works, grouting works etc., are in the scope of Low side HVAC contract. associate equipments required for completion of HVAC system) is covered in HVAC scope of work. HVAC contractor shall provide the necessary details, drawings and marking at site well in advance with exact size/type etc., The complete coordination with civil agency for the required civil works shall be done by HVAC contractor.. At no circumstances, it is not acceptable as the reason for delay of HVAC work execution due to pending civil works. 4 1) S.H A, Fashion Design BOQ Item No ) S.H A, Film & TV BOQ item No ) S.H B, Fashion Design 2) S.H B, Film & TV 6 S.H A Film & TV BOQ Item No. 2.A) Approved makes of hot water generator Piping Hot Water Pumps Supply, installation, testing and commissioning of Hot water pump set each capable of delivering the specified flow rate comprising the following and complete as per specifications. I) 1 No. monoblock pump. II) 1 No. suitable HP KEPL, Emerald, Rapid Cool Pressure rating for SH- B (Piping) with its associates valves shall be design as per 10 Kg/Sq.Cm The item A is now replaced with the item A of enclosed Annexure A

3 7 S.H A Film & TV BOQ Item No. 7.0) TEFC induction motor with class `F' insulation operating on % volts, 3 phase, 50 cycles AC supply. III) Lot, thermal insulation on the pump. IV) 2 Nos. 150 mm dia dial type pressure gauges. V) Lot, anti-vibration pads, channel base, coupling, coupling guard, suction guide, etc. VI) Lot, concrete foundation for the pump. a) Flow rate 450 LPM/head 25 m 3 Nos. (2W+1SB) b) Flow rate 100 LPM/head 20 m 2 Nos. (1W+1SB) Supply, Installation, testing and commissioning of Electric Hot Water Generator of following capacity conforming to BIS standards and hot water in let/ out let temperature of 45/50oC complete as per specifications with following accessories. i) Matching electrical immersion heater banks. ii) All automatic and safety controls such as manual reset, high temperature cut off, step controller and recycling relay, thermostats, pilot light, low water cut off and other controls. iii) Electrical panel mounted on generator frame complete with internal wiring, contractors, switches, etc. iv) Interconnecting The item No.7 is now replaced with the item No.7.0 of enclosed Annexure A

4 cables between panel and heater v) Concrete foundation for Hot Water Generator vi) Water Temp. in C 45 Water Temp. Out C50 Capacity 70 KW 3 Nos. (2W+1SB) 8 S.H B Film & TV BOQ Item No. 1.0) 9 As Per Tender Documents Schedule F 10 1) S.H C, Fashion Design BOQ Item no ) S.H C, Film & TV BOQ item 5.0 Page No: 69 Supply, laying/fixing, testing and commissioning of following sizes of chilled water MS ERW heavy class piping with necessary clamps, supports, anti-vibration mountings, hangers and fittings such as bends, tees, reducers etc. (but excluding valves, strainers, gauges, etc.) duly insulated with polyurethane foam pipe section pre laminated with aluminum foil and finally applying aluminum tape at joints as per specifications. Estimated Cost of Work Rs Crore (Approx) Earnest Money Rs 6.37 Lakhs Supply, installation, testing and commissioning of GI multi-leaf motorised fire dampers complete with chrome plated spindles in self lubricated bronze bushes, linkages, actuator motor, limit switch, wiring etc. complete as per specifications. Supply, laying/fixing, testing and commissioning of following sizes of chilled water MS ERW heavy class piping confirming to IS code with necessary clamps, supports, anti-vibration mountings, hangers and fittings such as bends, tees, reducers etc. (but excluding valves, strainers, gauges, etc.) duly insulated with factory remolded section of polyurethane foam with wire mesh and coated with sand and cement plaster as per specifications. Estimated Cost of Work Rs Crore (Approx) Earnest Money Rs 5.21 Lakhs The item No.7 is now replaced with the item 1) Fashion Design BOQ Item no ) Film & TV BOQ item 5.0 of enclosed Annexure A

5 11 1) S.H C, Fashion Design BOQ Item no As Per Tender Documents 13 As Per Tender Documents Page no. 102 & 103 Page no. 103 Supply, installation, testing and commissioning of square/rectangular powder coated extruded aluminum supply air jet diffusers of various sizes with volume control dampers, and complete as per specifications. Humidifier Each unit will be equipped with Pan type Humidifier located inside the unit. The Pan type humidifier shall consists of water tank made of Galvanized Sheet Steel with stainless steel perforated cover. Electronic water level sensor will be interred locked with water heating element. The heating element shall work automatically with a humidistat. Spray type humidifier if specified in BOQ will consist of spray header, nozzles, and vertical mounted spray pump. The water spray pump shall work automatically with a humidistat. The water pump shall be made of non-corrosive material with water strainer before pump. 2 Bend PVC Eliminator shall be provided after the spray to prevent water carry over to Fan section. FRESH AIR INTAKES Extruded Aluminum construction duly anodized (20 microns and above) fresh air louver with bird screen and extruded construction dampers The item No.6 is now replaced with the item No.6.0 of fashion design of enclosed Annexure A This stands Deleted This is not part of Air Handling Unit Specification. This should be treated as specification for the Item No 9 of Sub Head C of Fashion Design and Item No 9 of Film &

6 14 As Per Tender Documents 15 As Per Tender Documents Page no. 110 Page No. 85 shall be provided in the clear openings in masonry walls of the air handling unit rooms having at least one external wall. Louvers, damper, Pre-filters, ducts and fresh air fan with speed regulator shall be provided as shown on Drawings and in Schedule of Quantities. Fresh air dampers shall be inter locking, opposed blade louver type. Blades shall be made of extruded aluminum construction and shall be rattle-free. Dampers shall be similar to those specified in Air Distribution. Fresh air fans and fresh air intakes shall be per the requirements of Schedule of Quantities. Specifications of Chilled water piping ANNUAL MAINTENANCE CONTRACT TV All Joints shall be welded type in place of screwed fittings. ANNUAL MAINTENANCE CONTRACT The CONTRACTOR shall quote separately for comprehensive and allinclusive (labour and material and everything) Annual Maintenance Contract for full five years period after the Defect Liability Period (DLP). The CONTRACTOR shall bear the full responsibility for all kinds of maintenance which includes periodic maintenance as well as The CONTRACTOR shall quote separately for comprehensive and all-inclusive (labour and material and everything) Annual Maintenance Contract for full five years period after the Defect Liability Period (DLP). The CONTRACTOR shall bear the full responsibility for all kinds of maintenance which includes periodic maintenance as well as

7 attending to all breakdown and emergency calls at short notice whenever called. During this five-year period the scope of annual maintenance contract includes repair and replacement of any or all parts as required. Besides, the replenishment of all consumables shall also to be included in the scope of annual maintenance contract. The CONTRACTOR shall furnish the list of recommended spares along with quantity and unit price schedule to the EMPLOYER along with the bid. The EMPLOYER reserves the right the required spares during the tenure or on completion of annual maintenance contract at the quoted price which should be valid for the entire maintenance period i.e. five (5) years after DLP. attending to all breakdown and emergency calls at short notice whenever called. During this fiveyear period the scope of annual maintenance contract includes repair and replacement of any or all parts as required. Besides, the replenishment of all consumables shall also to be included in the scope of annual maintenance contract. The CONTRACTOR shall furnish the list of recommended spares along with quantity and unit price schedule to the EMPLOYER along with the bid. The EMPLOYER reserves the right the required spares during the tenure or on completion of annual maintenance contract at the quoted price which should be valid for the entire maintenance period i.e. five (5) years after DLP. The operation and routine maintenance of the HVAC system during the defect liability period shall be inclusive in the quoted rate of the bidder. The charges for providing all inclusive operation and comprehensive maintenance of complete HVAC system after the defect liability period for a period of five years shall be

8 quoted against the SH- E Operation & Maintenance (item No.1 ) of enclosed Annexure A The operation and maintenance after the defect liability period shall be optional. If the accepted by Client then a separate agreement shall be executed with Client for execution.

9 ANNEXURE 'A' to No.4 to Tender Documents TENDER No. RITES/CO/B&A/EE/DTEH-Rohtak-Air Cooled Chiller System of HVAC Work Supply, Installation, and Testing & Commissioning of Air Cooled chiller System HVAC work for Fashion Design & Film & TV at Institutional Campus, Rohtak. SR. NO. ITEM OF WORK UNIT QTY. QUOTED UNIT RATE AMOUNT (in words) In Figures(Rs.) In Words(Rs.) In Figures(Rs.) FILM & TV SUB HEAD 'A' MACHINERY 2.A Hot Water Pumps Nos. 3 Supply, installation, testing and commissioning of Hot water pump set each capable of delivering the specified flow rate comprising the following and complete as per specifications. I) 1 No. monoblok pump. II) 1 No. suitable HP TEFC induction motor with class `F' insulation operating on % volts, 3 phase, 50 cycles AC supply. III) Lot, thermal insulation on the pump. IV) 2 Nos. 150 mm dia dial type pressure gauges. V) Lot, anti-vibration pads, channel base, coupling, coupling guard, suction guide, etc. VI) Lot, concrete foundation for the pump. a) Flow rate 200 LPM/head 25 m (2W+1SB) 7.0 Supply, Installation, testing and commissioning of Electric Hot Nos. 3 Water Generator of following capacity conforming to BIS standards and hot water in let/ out let temperature of 45/50oC complete as per specifications with following accessories. i) Matching electrical immersion heater banks. ii) All automatic and safety controls such as manual reset, high temperature cut off, step controller and recycling relay, thermostats, pilot light, low water cut off and other controls. iii) Electrical panel mounted on generator frame complete with internal wiring, contractors, switches, etc. iv) Interconnecting cables between panel and heater v) Concrete foundation for Hot Water Generator vi) Water Temp. in C 45 Water Temp. Out C50 Capacity 70 KW (2W+1SB)

10 ANNEXURE 'A' to No.4 to Tender Documents TENDER No. RITES/CO/B&A/EE/DTEH-Rohtak-Air Cooled Chiller System of HVAC Work Supply, Installation, and Testing & Commissioning of Air Cooled chiller System HVAC work for Fashion Design & Film & TV at Institutional Campus, Rohtak. SR. NO. ITEM OF WORK UNIT QTY. QUOTED UNIT RATE AMOUNT (in words) In Figures(Rs.) In Words(Rs.) In Figures(Rs.) 5.0 FILM & TV SUB-HEAD 'C' DUCTING AND GRILLES Supply, installation, testing and commissioning of GI multi-leaf motorised fire dampers complete with chrome plated spindles in self lubricated bronze bushes, linkages, actuator motor, limit switch, wiring etc. complete as per specifications. 5.1 Bare Fire Damper Sqm Actuators Nos. 10 FILM & TV SUB-HEAD 'E' OPERATION & MAINTENANCE 1.0 Charges for providing all inclusive operation and comprehensive maintenance of complete air-conditioning systems including gas topping, replacing of fuses, replacing of V-belts and any other break - down in the air conditioning system for a period of 1 year of operation after completion fo 1st year of operation 2.1 1st year 2.2 2nd year 2.3 3rd year 2.4 4th year 2.5 5th year

11 ANNEXURE 'A' to No.4 to Tender Documents TENDER No. RITES/CO/B&A/EE/DTEH-Rohtak-Air Cooled Chiller System of HVAC Work Supply, Installation, and Testing & Commissioning of Air Cooled chiller System HVAC work for Fashion Design & Film & TV at Institutional Campus, Rohtak. SR. NO. ITEM OF WORK UNIT QTY. QUOTED UNIT RATE AMOUNT (in words) In Figures(Rs.) In Words(Rs.) In Figures(Rs.) FASHION DESIGN SUB-HEAD 'C' DUCTING AND GRILLES Supply, installation, testing and commissioning of GI multi-leaf Bare Fire Damper Sqm Actuators Nos Supply, installation, testing and commissioning of powder coated Nos. 48 extruded aluminium supply air jet diffusers of various sizes with volume control dampers, and complete as per specifications. 315 MM DIA 1.0 FASHION DESIGN SUB-HEAD 'E' OPERATION & MAINTENANCE Charges for providing all inclusive operation and comprehensive maintenance of complete air-conditioning systems including gas topping, replacing of fuses, replacing of V-belts and any other break - down in the air conditioning system for a period of 1 year of operation after completion fo 1st year of operation 2.1 1st year 2.2 2nd year 2.3 3rd year 2.4 4th year 2.5 5th Year