REPAIR/MAINT OF CERTAIN PACKAGE VRF TYPE AC PLANTS / COOLING APPLIANCES NEWLY TAKEN OVER BLDG FROM CC AT AMCC/ATC BUILDING, DMRL UNDER GE I RND KANCHANBAGH, HYDERABAD

Amount

Comprehensive maintenance of VRF/ VRV system Type Air conditioners with connected AHU/ indoor units by deploying Original Equipment Manufacturer (OEM) trained & experienced Engineer/Technical staff for the following equipment located at various buildings of AMCC BUILDING Area including electrical connections to inspect the operation of VRF/VRV type Air conditioners with connected AHU/ indoor units and carring out preventive maintenance as per standard practice or as per OEM recommendations, carrying out repair to defective components/ equipment, detection of leaks & rectifying the same, charging/topping up of refrigerant gas complete all as specified and directed. NOTE: Compressors, PCBs, Sensors, Rewinding of Motors, Refrigerant gas etc., will be measured & paid separately under relevant items of this BOQ. (a) AMCC BUILDING VRF 2 x 20 HP out door 8 Nos

Supply only Digital Compressor for 20HP capacity units. Make: EMERSON/ DANFOSS or equivalent

Supply & charging Refrigeration Gas 410-A

Supply only Mother Board for out door unit 20HP

Supply only Fan Motor & PCB for unit 20 HP

Supply only Temparature sensor for unit 20 HP

Supply only FAN motor for unit 20 HP

Supply only solonoid valve for outdoor unit

Supply only VRF AHU of 25000 cfm unit ahu expansion KIT

Supply only VRF indoor unit Temparature sensor suitable for AHU

Supply only 4 pole contactor, 63 Amps MAKE: L&T/SCHNEIDER/LEGRAND/C&S

Supply only 4 pole contactor, 32 Amps MAKE: L&T/SCHNEIDER/LEGRAND/C&S

M&L for serving of both indoor and out door units with coil cleaning chemical for cassatte ACs including checking of all electrical connectionsall as directed for the following capacity of plants (Note:SERVICING TO BE DONE ONCE IN EVERY THREE MONTH)

1 x 2 TR Capacity Cassete Hi-wall split AC out door unit Make : Daikin

1 x 3 TR Capacity Cassete Hi-wall split AC indoor unit Make : Daikin

2 x 4 TR Capacity Cassete Hi-wall split AC Indoor unit Make : Daikin

4 x 5.5 TR Capacity Package type AC plant

5 x 8.5 TR Capacity Ductable type AC

M&L for leak testing of the total refrigerant system of Package VRF type AC plants breezing leak testing N2 pressure testing vacuuming & gas charging, flushing out the entire system arrest all leakages by replacing the damaged flare nuts, taflon washers, brazing, gaskets, o rings etc and leak test by supply and charging with Nitrogen gas ( N-2) under constant pressure of 250 - 300 PSI , watching the pressure for 24 Hrs for confirmation, flushing out the system vacuumising and charge the required qty of refrigerant and lubricant testing and commissioning the system all as directed for the following capacity of plants (Note: Refrigerant & compressor oil shall be measured and paid separately under respective items)

1 x 2 TR Capacity Cassete Hi-wall split AC out door unit Make : Daikin

1 x 3 TR Capacity Cassete Hi-wall split AC out door unit Make : Daikin

2 x 4 TR Capacity Cassete Hi-wall split AC out door unit Make : Daikin

4 x 5.5 TR Capacity Package type AC plant

5 x 8.5 TR Capacity Ductable type AC

M&L for taking down unserviceable hermetically sealed compressor after disconnecting the suction/delivery lines and Supply & fixing hermetically sealed compressor of following capacities as per existing make, model & specification, including pressure testing, vacuumising and charging of refrigerant, testing and commissioning all as directed Make : Copeland/Danfoss/kirloskar/Blue star/Voltas (As per site requirement)

4 TR Note: Refrigerant will be measured and paid separately

Taking down unserviceable liquid line filter drier and S&F liquid line filter drier as per existing make & specification and suitable size to fixing with existing refrigerant line for 10 HP to 20 HP capacity compressor of AC Plant, all as specified and directed by the Engr-in-charge

Removing the worn-out unserviceable blower motor following capcity of AC Plant from the position after disconnecting the electrical connections and transporting to the work shop and opening the end covers, removing the unserviceable winding, clean the slots with CTC, rewind the motor by super enameled copper winding wire of suitable gauge and size with insulating paper, insulating varnish and drying for obtaining requisite insulation values complete with necessary PVC sleeves, lead wire, new terminal block complete and bring back and install in position including testing and commissioning all as directed

20 HP capacity

Taking down unserviceable blower motor V-belt and S&F blower motor V-belt as per existing same Model & specification and suitable size to fixing with existing 25000LCFM - 02 Nos system capacity Package units all as specified and directed by the Engr-in-charge. Make:- FENNER/DUNLOP/NIRLON/DAIKIN

M&L for Repair/Servicing microprocessor based control panel with display including replacing wornout u/s single/three phase controllers, contractors, fuse, internal wiring as per existing same model & specification and suitable size for the following UNITSall as specified and directed by the Engr-in-charge

1 x 2 TR Capacity Cassete Hi-wall split AC out door unit Make : Daikin

1 x 3 TR Capacity Cassete Hi-wall split AC out door unit Make : Daikin

2 x 4 TR Capacity Cassete Hi-wall split AC out door unit Make : Daikin

4 x 5.5 TR Capacity Package type AC plant

5 x 8.5 TR Capacity Ductable type AC

S&F in replacement microprocessor based control panel alongwith single phase controllers, contractors and LED display as per existing same model & specification, controlling for condensing unit, compressor unit & blower of following units , all as specified and directed by the Engr-in-charge. Make:- Voltas/Bluestar/LG/Daikin

1 x 2 TR Capacity Cassete Hi-wall split AC out door unit Make : Daikin

1 x 3 TR Capacity Cassete Hi-wall split AC out door unit Make : Daikin

2 x 4 TR Capacity Cassete Hi-wall split AC out door unit Make : Daikin

4 x 5.5 TR Capacity Package type AC plant

5 x 8.5 TR Capacity Ductable type AC

Removing the chocked unserviceable copper refrigerant tubing and S&F copper refrigerant tubing for the following sizes (outer dia) including suitable joints / branch connectors and distributers with flare nuts/brazing for indoor & outdoor units as required at site complete all as specified and as directed.

6.4 mm to12.7 mm

15.9 mm to 22.2 mm

M&L for rigid PVC conduit (medium grade) size 20 to 32 mm dia for water drain out line for Package type AC plant, laid on walls, ceiling, in floors with clamping/fixing mtrls complete all as specified and directed.

All as per item 22 above but size 40 mm dia.

M&L for preparation of surfaces by scrapping and removing rusted portion with wire brush and applying one coat of Red-oxide primer and two coats of synthetic enamel paint by spray method of the following capacities complete all as specified and directed

1 x 2 TR Capacity Cassete Hi-wall split AC out door unit Make : Daikin

1 x 3 TR Capacity Cassete Hi-wall split AC out door unit Make : Daikin

2 x 4 TR Capacity Cassete Hi-wall split AC out door unit Make : Daikin

4 x 5.5 TR Capacity Package type AC plant

5 x 8.5 TR Capacity Ductable type AC

Removing the unserviceable thermostat expansion valve /capillary from the evaporating unit and S&F thermostat expansion valve/capilary of following capacities including cutting and brazing complete all as specified and directed by Engr-in-charge.

1 x 2 TR Capacity Cassete Hi-wall split AC out door unit Make : Daikin

1 x 3 TR Capacity Cassete Hi-wall split AC out door unit Make : Daikin

1 x 4 TR Capacity Cassete Hi-wall split AC out door unit Make : Daikin

4 x 5.5 TR Capacity Package type AC plant

5 x 8.5 TR Capacity Ductable type AC

Supply and top up Compressor oil synthatic oil of suitable grade in the refrigeration compressor to the requisite level complete all as directed Make: Freezol/servo freeze

Supply and filling/topping up/ charging of Refrigerent gas R-22 for Package VRF type ACs complete all as directed.

Supply and filling/topping up/ charging of Refrigerent gas R-407 for Package VRF type ACs complete all as directed.

Supply and filling/topping up/ charging of Refrigerent gas R-32 for Package VRF type ACs complete all as directed.

S&F Distribution board 4 way TPN vertical Double Door duly fitted with Bus Bars, Neutral Links suitable for 415V, 50Hz, Blanking Plates, Suitable for FP MCCBs as incomer (MCCB to be measured and paid separatly), including taking down old u/s. Make:-Standard/L&T /Legrand .

S&F CRCA Sheet metal enclouser with provision to mount MCB/Isolator/RCCB etc, suitable for use on 415 V, 50 Hz supply, metal door IP 20, 4 way for 4 Nos modules including taking down old u/s. Make:-Standard/L&T /Legrand .

S&F in repairs MCCB 100 Amps ,415 volt ,35 kA Breaking capacity, fixed magnetic & adjustable thermal setting 4 pole incl all termnials, fitting etc . Make:-Standard/L&T /Legrand .

S&F in repairs MCCB 63 Amps ,415 volt ,16 kA Breaking capacity, fixed magnetic & adjustable thermal setting 4 pole incl all termnials, fitting etc . Make:-Kinjal/Standard/L&T /Legrand .

S&F in repairs MCB TPN 32 to 40 Amps 415V incl all termnials, fitting etc. Make:-Standard/L&T /Legrand .

S&F in repairs MCB Changeover two way centre off switch FP, 40 Amps 415V incl all termnials, fitting etc. Make:-Standard/L&T /Legrand .

S&F in replacement for the following unserviceable spare parts for cassatte AC's of any make & model all as specified and directed

Contactor rated current AC 3Ph, 9 Amps, coil voltage 230 V AC, 50Hz, capacity as per existing specification

Contactor rated current AC 3Ph, 18 Amps, coil voltage 415 volts AC, 50Hz, capacity as per existing specification

Contactor rated current AC 3Ph, 25 Amps, coil voltage 415 volts AC, 50Hz, capacity as per existing specification

Relay switch of range 4 to 6.5 Amps

Relay switch of range 6 to 10 Amps

Relay switch of range 9 to 14 Amps

Relay switch of range 13 to 21 Amps

LED Indicator lamps of colors R / Y / B

HRC fuse 2.5 to 10 Amps

HRC fuse 16 to 32 Amps

MCCB 160 Amps 35 KA Make L&T Model No DU250C

MCCB 100 Amps 25 KA Make Havells/Standard Model No SKB-7

MCCB 63 Amps 25 KA Make Havells/Standard Model No SKB-7

MCCB 32 Amps 36 KA Make L&T Model No DNO-100D

MCCB 32 Amps 36 KA Make L&T Model No BA40320C

M&L for repair to unserviceable with cord/cordless PCB remote control unit of for indoor unit of Casettee AC of cap 2 to 4 TR including replacement of unserviceable spare parts and refixing, connection of electrical control circuit, testing for satisfactory functioning complete all as specified and directed

S&F in replacement Outdoor Sensors suitable for Hi-Wall split Type AC for 2 TR to 4 TR same as per at site

S&F in replacement Outdoor ambient Sensors suitable for VRF Type AC Plant same as per at site of following capacity

Set of 2 x 20.0 HP indoor-08 Nos /out door VRF unit at AMCC Bldg Make : Daikin

S&F in replacement condenser fan blade suitable for Air Cooled condenser of following capacity

2 to 4 TR Capacity

10 to 20 HP Capacity

S&F in replacement strip heater including necessary wiring suitable to fix in plenum of following capacity

Servicing greasing overhauling of AHU blower motor of capacity 25000 CFM, checking the pulleys, base frame, cooling to opening covers and replacing the bearings pulleys as per the existing model, lubricating all mechanical parts with synthetic grease and reassembling all parts, aligning of the pulley to its original position complete to the entire satisfaction of Engr-in Charge

Disconnecting and removing the burnt out monoblock pumping sets from the existing plants, of central/package type AC plants, rewinding the same with super enamelled copper conductor with same existing gauge and reconnecting the same with electrical connections and testing complete all as specified of capacity upto 7.5 HP.

All as per item No. 43.00 as above but of capacity 12 HP to 20 HP.

Taking out old unserviceable Pre filter and S & F Air pre filters suitable for Air conditioning system AHU’s as per norms made with galvanised steel frame aluminium separators with non woven synthetic filter media of 20 micron as per existing size and shape including taking down old U/S Air pre filters completed all as directed Make:As approved by GE

Taking out old unserviceable 5 micron filter and S & F Air pre filters suitable for Air conditioning system AHU’s as per the ASHRAY norms made with galvanised steel frame aluminium separators with non woven synthetic filter media of 5 micron as per existing size and shape including taking down old U/S Air pre filters completed all as directed Make:As approved by GE

Supply and fix inreplacement of MCB single pole 6-32 Amps working on 240 volts, 50 HZ AC, 10 KA 'C' curve all as specified and directed. Make: Legrand/C&S/L&T

S&F in replacement of MCB TP 40 Amps working on 415 volts, 50 HZ AC, 10 KA ,'C' curve all as specified and directed. Make: Legrand/C&S/L&T

S&F in replacement of MCB TP 63 Amps working on 415 volts, 50 HZ AC, 10 KA ,'C' curve all as specified and directed. Make: Legrand/C&S/L&T

S&F in replacement of MCB TPN 40 Amps working on 415 volts, 50 HZ AC, 10 KA ,'C' curve all as specified and directed. Make: Legrand/C&S/L&T

S&F in replacement of MCB TPN 63 Amps working on 415 volts, 50 HZ AC, 10 KA ,'C' curve all as specified and directed. Make: Legrand/C&S/L&T

S&F in replacmenet MCCB with rating of 100Amps,415Volts 4pole with 25kA breaking capacity,thermal magnetic adjustable of overload & short circuit release as per IS-13947 & IEC 60947-2 & the service short circuit breaking capacity (Ics) should be 100% of ultimate breaking capcity(Icu) with inbuilt Display for Current Metering with accuracy of class 1. MCCB should be with suitable spreaders and phase barriers for each terminals with all accessories all as specified and directed. Make : Legrand/L&T/Schneider

All As per item No. 53 above but 160Amps, 4 pole, 25KA. Make : Legrand/L&T/Schneider

S&F in replacement MCCB with rating of 63Amps,415Volts 4pole with 25kA breaking capacity,thermal magnetic adjustable of overload & fixed short circuit release as per IS-13947 & IEC 60947-2 & the service short circuit breaking capacity (Ics) should be 100% of ultimate breaking capcity(Icu) . MCCB should be with suitable spreaders and phase barriers for each terminals with all accessories all as specified and directed. Make : Legrand/L&T/Schneider

All As per item No :55 above but 125Amps, 4 pole, 25KA. Make : Legrand/L&T/Schneider

Material and labour for Earthing complete with galvanised steel earth plate electrode 600 x 600 x 6 mm thick buried directly in ground vertically to a depth of not less than 2.25 mtrs below ground level with the top edge of earth plate at a depth of not less than 1.5 mtrs below normal ground level, connected to and including galvanised iron earth strip of size 32x6 mm with GI medium grade protection pipe of 40 mm dia for earth electrode upto test point or upto 7.5 mtr whichever is less, by means bolts, nuts, check nuts and washers of galvanised iron including necessary excavation earth work in any type of soil, PCC pit (1:3:6) type C1 and RCC cover (1:2:4) type B1 of 40 mm, watering pipe 20 mm dia GI pipe, wire mesh, funnel, lugs, charcoal, salt etc complete all as per electrical plate No. 3 or SSR Part-I complete all as specified and as directed. Note : GI strip and GI pipe 40 mm dia beyond 7.5 metres per earth will be measured and paid separately.

Earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required galvanised iron or steel wire 32x6mm galvanised iron strip all as specified and as directed.

Supply and fix in repair of Impulse Emergency First aid kit box with basic medicine like Band Aid strips of min 20 Nos, Antiseptic cream, Cotton, Surgical tape 1 inch, non sterial gauge swabs, Hydrogen peroxide bottle, medical spirit bottle complete all as specified and directed.

Maintenance of Hot water generator 54 KW and complete testing all as specified and directed by the Engr-in-charge :- Note : 1) spares like heaters and controls will be paid separtely Make : Rapicool

supply and fixing of thermostate

supply and fixing of 3/2 kw heater

supply and fixing of suitable size contactor

supply and fxixng of indicator

supply and fixng of dial type themometers

supply and fixng of dail type presssure guage

supply and fixing of 50mm butter fly valve

serving of various capcity and make OF UPS 10 kva/20kva/30 kva

Renewal of unserviceable batteries with maintenance free batteries of 150 AH, 12V including connecting to UPS complete all as directed. Make:- EXIDE/ AMARON

Renewal of unserviceable batteries with maintenance free batteries of 42 AH, 12V including connecting to UPS complete all as directed. Make:- EXIDE/ AMARON

Renewal of unserviceable batteries with maintenance free batteries of 65 AH, 12V including connecting to UPS complete all as directed. Make:- EXIDE/ AMARON

Renewal of unserviceable batteries with maintenance free batteries of 200 AH, 12V including connecting to UPS complete all as directed. Make:- EXIDE/ AMARON

Supply only in replacement Copper pipes 1/4 to 1/2" dia, duly insulated with synthetic felt tube, for split / window type Airconditioner / refrigerator / water cooler complete with taking out old unserviceable one

All as per item No 73 above but of size 3/8 to 5/8" dia

Supply only in replacement Brass flair nuts 1/2 to1/4" including taking out old unserviceable one.

All as per item No 75 above but of size 3/8 to 5/8" dia

S.S.ENGINEERING CORPORATION

omsai thermax engineers

CHITRA ENGINEERING CORPORATION

K LAKSHMAN SINGH AND CO