REPAIR ROUTINE MAINTENANCE OF COLD STORAGE UNITS INSTALLED AT NEW BV YARD COMPLEX AND REPAIR ROUTINE MAINTENANCE OF PACKAGE AC S, DUCTABLE ACS AT INS VENDURUTHY AREA, INHS SANJIVANI, INS GARUDA, MO K AND NAY AREA AT NAVAL BASE KOCHI

Amount

Preventive Maintenance of monthly servicing and check up of Bitzer make, Blast cold storage 25.2 HP of 2 units including 2 ODU+ 2 IDU (-)30 °C operation with R- 404A Refrigerant gas two stage, semi hermetically sealed compressor controlled with electronically operated solenoid valve for liquid system, complete all as specified and directed.

All as per Serial item No 01, But Meat room of cold storage (-) 18 °C with capacity 6 HP having 02 units including 2 ODU +2 IDU.

All as per Serial item No 01, But Fish room of cold storage (-) 18 °C with capacity 4 HP having 02 units including 2 ODU +2 IDU

All as per Serial item No 01, But Vegetable room of cold storage (+) 4 °C capacity 6 HP having 02 units including 2 ODU +2 IDU

All as per Serial item No 01,But Egg room of cold storage (+) 4 °C capacity 4 HP having 02 units including 2 ODU +2 IDU

All as per Serial item No 01,But Ante room of cold storage (+) 4 °C capacity 6 HP having 02 units including 2 ODU +2 IDU

All as per Serial item No 01, But Milk room of cold storage (+) 4 °C capacity 2 HP having 02 units including 2 ODU +2 IDU. Note for serial No 1 to 7: (a) Service of cold storage comprises the cleaning to the outdoor unit and indoor unit of Cold storage system, units by using pressure water, clean with mild air blower in the cooling coil side and including repairing, gas refilling etc. (b) All Major spares shall be measured and paid under relevant items here in after. (c) Each servicing/checkup of cold storages by OEM or authorised dealers shall be carried out once in months , attend at any time of breakdown call by MES rep within 24 hours. (d) The job above quoted shall be included for all labour cost, except electrical control panels with parts.

Material & Labour for Servicing/replacement of defective spares in existing electrical control panels to operation for compressor, evaporator, man trap alarm repairing, defrosting, tray heaters, drain heaters, temperature sensors etc in cold storages, including decarbonizing, tightening of control cable terminations, cable glands, and end termination, replacement of defective contactors (suitable fitting in existing panel),push switches, MCBs, or any other defective spares crimping by Attending with skilled Electricians, with necessary Tools & Plant for checking and make functional in all the respect the Cold storage. Note: The job above quoted shall be included for all labour cost, minor spares up to Rs.250/-and the electrical spares more than Rs 250 are measured separately.

Supply and fixing digital temperature gauge of subzero model SZ7504 of working Temperature range -50°C to +99°C complete all as specified and directed.

Supply only Catchall ( filter drier) -sub cooling Make: Danfoss/Indfoss

Supply only liquid line drier ( Model 604) Make: Danfoss/Indfoss

Supply only HP/LP Switch Make: Danfoss

Supply only Oil Pressure Switch Make: Danfoss

Supply only Solenoid Valve Make: Danfoss

Supply only Expansion Valve suitable for -18°C Make: Danfoss/Sporlan

Supply only Expansion Valve suitable for +4°C Make: Danfoss/Sporlan

Supply only Condenser fan motor capacity of 0.5 HP-0.75 HP along with leaf suitable for existing bracket of outdoor unit Make: Bitzer suitable for +4°C cold storages.

Supply only Condenser fan motor capacity of 0.5 HP-0.75 HP along with leaf suitable for existing bracket of outdoor unit Make: Bitzer suitable for -18°C to - 30°C cold storages.

Supply only Evaporator fan motor capacity of 0.5 HP-0.75 HP along with leaf suitable for existing bracket of Indoor unit Make: Guntner suitable for +4°C cold storage.

Supply only Evaporator fan motor capacity of 0.5 HP-0.75 HP along with leaf suitable for existing bracket of Indoor unit Make : Guntner suitable for -18°C to - 30°C cold storages.

Supply only drain heater complete suitable for +4°C cold storage complete all as specified and directed

Supply only drain heater complete suitable for -18°C cold storage complete all as specified and directed

Supply only Door Heater suitable for +4°C & -18°C cold storage complete all as specified and directed

Supply only Tray heater suitable for +4°C suitable size for existing units complete all as specified and directed

Supply only Tray heater suitable for -18°C suitable size for existing units complete all as specified and directed

Supply only Cold Room Defrost Heater working on 230 V suitable size for existing units complete all as specified and directed

Supply only Cool Room Defrost Heater working on 230 V suitable size for existing units complete all as specified and directed

Supply only Door handle suitable for temperature range -18 °C to -30 °C cold rooms suitable size for existing units complete all as specified and directed

Supply only Door handle suitable for temperature range +4°C cold rooms suitable size for existing complete all as specified and directed

Supply and charging Refrigerant Gas R 404A in sealed cylinder including leak testing by using nitrogen gas all as specified and directed by Engineer in Charge. Note: - 1. Nitrogen will be measured and paid separately. 2. Empty cylinder will returned to contractor after usage.

Supply and charging Refrigerant Gas R134 in sealed cylinder including leak testing by using nitrogen gas all as specified and directed by Engineer in Charge. Note: - 1. Nitrogen will be measured and paid separately. 2. Empty cylinder will returned to contractor after usage.

Supply only Nitrogen gas contains 12 PSI of pressure in each cylinder of 6 cubic metre.

Supply and replacement of compressor oil suitable for Refrigerant Gas R-134 and R-404A operated compressors, complete all as specified and directed. Make: Emkarate(RL-32) or equivalent.

Supply and fix and replace HP/LP Hose pipe for temperature range -18 °C to -30 °C cold rooms complete all as specified and directed

Supply and fix and replace HP/LP Hose pipe for temperature range +4°C cold rooms complete all as specified and directed

Material & Labour for rewinding of compressor of Bitzer make operating 3 phase 415 V,cold storage capacity 25 HP with same gauge super enameled copper insulated wire grinding, turning to the required size complete all as directed by Engineer in charge.

Material and labour for opening body cover and dismantling of compressor BITZER make operating 3 phase 415 V,cold storage capacity 25 HP transport to local work shop repairing / maintenance and cleaning / servicing of crank shaft, suction rod, piston set, piston rod, reciprocating oil pump & suction and discharge valve reeds including grinding and polishing of shaft/piston rods etc if found defective and reassembling, testing for proper functioning complete all as specified and directed by Engineer-in charge.

Material and labour for opening body cover and dismantling of compressor BITZER make operating 3 phase 415 V,cold storage capacity 2 to 6HP transport to local work shop repairing / maintenance and cleaning / servicing of crank shaft, suction rod, piston set, piston rod, reciprocating oil pump & suction and discharge valve reeds including re-metaling the bearing housing, rewinding, varnishing, drying, re-assembling the compressor to bring in original state including fixing on the existing condensing unit, testing complete all as directed by Engineer-in charge.

Supply and replace MCB, TPN 06- 32 Amp, C curve, 10 KA including taking out old unserviceable MCB, all as specified and directed.

Supply and replace single phasing preventer, suitable for 380V-415V, AC complete all as specified and directed.

Supply and replace thermal overload relay for MNX contractors capacity up to 42 Amps, delay range 6 to 42 Amps. all complete all as specified and directed

Supply and replace power contactor upto MNX-32, 32 Amps TP 415V of coil voltage 220V with aux contact 1 NO+1NC.

Supply and replacement of premium Quality rubber door gasket for existing Metaflex door sizes 2000 mm (L)x1200 mm (B), (thickness range of door 60 mm to 150 MM) ,including all connected items for cold rooms complete all as specified and directed.

Material & Labour for Repair and servicing of 40mm thick sectional over head door, working with rails and brackets for free longitudinal movement, including necessary replacement of suitable gauge SWR, control cables, any other defective accessories, including greetings for the door movement with motorised with push button and functional in all respect complete all as specified and directed. Note: - The servicing should be carried out by OEM/authorised agency.

Supply and fix and replace hinges for 40mm thick sectional over head door complete all as specified and directed by Engineer in charge.

Supply and fix and replace rollers for 40mm thick sectional over head door complete all as specified and directed by Engineer in charge.

Supply and fix and replace GI rope for 40mm thick sectional over head door complete all as specified and directed by Engineer in charge.

Supply and fix and replace plastic door handle for 40mm thick sectional over head door complete all as specified and directed by Engineer in charge.

Supply and fix and replace view glass for 40mm thick sectional over head door complete all as specified and directed by Engineer in charge.

Supply and fix in replacement of digital micro possessor based control display unit for working range -18 °C to -30 °C cold storages with software programmed by OEM to functioning of all controls and suitable for fixing inside the existing panels including necessary control wires, sockets etc complete all as specified and directed. Make: As recommended by OEM(Bitzer).

Ditto all as per Serial Item No 50, But working Range +4°C cold rooms.

Supply and fixing in replacement of weather proof LED tube lights, 230 Volt,along with copper cable as required for connecting existing points at inside cold rooms complete all as specified and directed.

Material & Labour for Leak testing of Blast & Meat cold storage units of working range -18 °C to -30 °C including filling of nitrogen gas for pressure testing required as per OEM specification for minimum 8 hours time frame, finding leaks, vacuumising the system, necessary brazing work, charging with refrigerant gas (R404A ) of required quantity, testing for proper functioning all as specified and as directed. Note: - Nitrogen and refrigerant gas shall be measured separately.

Material & Labour for Leak testing of cold storage units of +4°C including filling of nitrogen gas for pressure testing required as per OEM specification for minimum 8 hours time frame, finding leaks, vacuumising the system, necessary brazing work, charging with refrigerant gas (R134 ) of required quantity, testing for proper functioning all as specified and as directed. Note: - Nitrogen and refrigerant gas shall be measured separately.

Removing old perished insulations and Supply & Fix 'O' nitrile rubber insulation of for copper pipe suitable for +4°C, -18°C to -30°C of liquid and gaseous lines complete all as specified and as directed.

Dismantling old rusted metal frame, Supply & Fix Mild steel Framed brackets of angles or tees with web and flanges cut to shape, drilled and countersunk for screw, including bending and welding angles, as necessary, gusset plates, riveting, etc, complete all as specified and as directed.

Material & Labour for Repair/Replacement of copper refrigerant pipe lines suitable for existing units as recommended by OEM with insulation between indoors and out door units. Note: Suction & Discharge lines shall be treated as one Unit for One RM

Material & Labour for dismantling existing cold/ cool room door and cutting under the door and closing with SS panel to suitable size and making surface good to ensure air tight of the cool/cold using proper Tools & Plant to move freely and replacing gasket (measured separately under relevant item) and re-fitting the same complete all as specified and directed.

Dismantling existing SS PUF panel and leveling the room surfaces by using proper Tools & Plant wherever requirement at site and cleaning of SS panels by using OEM recommended chemical solution after removing rust/ foreign particles and refixing after necessary repairs of panel , patchwork and refixing using OEM recommended adhesive, replacement of inter locking system if damaged and fixing the joints with silicon to ensure leak proof and complete all as specified and directed by Engineer in charge.

Material & Labour for spray painting single coat anti corrosive enamel paint to outdoor unit of cold room/ cool room of any capacity complete all as specified and directed

Preventive Monthly maintenance of screw air compressor 600 CFM capacity ELGI 50 single stage Model EL06150 FAB No : 202432 with 110 HP motor, air and oil separator, cooling tower and connected items installed at PEGASUS NAY including the following all as directed and specified by Engineer in Charge for once in every one months( 30 days interval):- (a) Oil change (b) Pressure switch setting, Tips condition checking (c) Blow down valve functioning and repair (d) Setting and checking of safety valves (e) Electrical current measurement in full & no load (f) Leakage test in joints (g) Oil leak checking (h) Oil filters check (j) Functioning and repair of control systems (k) Testing of condition of coupling element (l) Functioning and repair of mechanical valves (m) Checking and repair PLC/Gauges (n) Checking of separator or pre separator and repair (o) Servicing of LT electric panel board of compressor. Note: - Major spares for replacement will be measured and paid separately under relevant items here in after but cost of labour for replacement shall be deemed included in the quoted rate.

Supply only Oil filter element 220411509 or equivalent

Supply only Min Oil filter element 220446019 or equivalent

Supply only Air filter element 220419499 or equivalent

Supply only Air lube Plus oil 20 L 000998114 or equivalent

Supply only Separator element 220413270 or equivalent

Supply only Separator element 220413261 or equivalent

Supply only Kit Mpv 220371399 or equivalent

Supply only Blow down valve assay A010029 or equivalent

Supply only Solenoid valve 220411610 or equivalent

Supply only Solenoid valve 220470590 or equivalent

Supply only Kit Pressure Regulator valve 220317599 or equivalent

Supply only Oil site glass A010018 or equivalent

Supply only Kit Actuator 220271439 or equivalent

Supply only Actuator Hose 22047645B or equivalent

Supply only Gasket tank ST1 20S 220428780 or equivalent

Supply only Gasket tank ST2 20S 220428790 or equivalent

Supply and replacement of capacitor for package type of capacity 5.5 to 17.5TR as suitable for existing plant complete all as specified.

Supply and fixing in replacement of digital microprocessor control panels for package AC Units as suitable and fitting for existing model of VLRP type range 6/5/4 Make: Blue star/Soft hard or equivalent.

Supply and replacement scroll type sealed compressor of capacity up to 5.5 TR 3 phase 415V including removing the existing unserviceable compressor with alteration to existing connections including refrigerant charging of suitable refrigerant up to working pressure as required complete all as directed.

Supply and replacement of scroll type sealed compressor of capacity above 5.5 TR - 8.75 TR 3 phase 415V including removing the existing unserviceable compressor with alteration to existing connections including refrigerant charging of suitable refrigerant up to working pressure as required complete all as directed.

Material & Labour for Bi-Monthly servicing the ODU + IDU of Package type /Duct able AC of capacity up to 5.5 TR for AC condenser including cleaning of filter cleaning, air blower cleaning, condenser coil and fins clean with solvent material by using pressure water pump, greasing of blowers, servicing fan motors, checking of gas pressure, dismantling, cleaning and refixing of air diffusers etc complete and all as specified and directed.

All as per Item No 82 but capacity of Package type /Duct able AC 7.5 TR to 8.75 TR, complete all as specified and directed by Engineer-In-Charge.

All as per Item No 82 but capacity of Package type /Duct able AC 10.00 TR and above capacity complete all as specified and directed by Engineer-In-Charge.

Supply and fixing of Hard PVC drain piping 40 mm up to drain disposal area with nitrile rubber insulation suitable for chilled water drainage complete all as specified and directed.

Supply and replacing of drier filter suitable for package/duct able AC of capacity 5.5 TR - 8.75 TR Make : CatchAll/Indfoss/Danfoss

Supply and replacement of drier filter suitable for package/duct able AC of capacity above 8.75 TR - 16.5 TR and above all as specified and directed.

Material & Labour for replacement of motor bearing, pillow block bearing, and blower shaft re-metaling, polishing and reassembling up to capacity of Air blower 6600 CFM complete all as specified and as directed.

Supply and replacement of blower unit complete assembly (excluding fan motor) with base frame, belts etc suitable for package/duct able AC of capacity up to 16.5 TR complete all as specified and directed.

Supply and replacement of expansion valves in indoor units of capacity not less than 7.5 TR all as specified and directed.

Supply and replacement of pre filters suitable for package units of capacity up to 16.5 TR complete all as specified and directed.

Supply and replacement of canvas cloth for connection between indoor unit to plenum duct projection branches for existing indoor units complete all as specified and directed.

Supply and replacement of V belt A series suitable for existing Package AC indoor units Make: Fenner

Supply and replacement of V belt B series suitable for existing Package AC indoor units Make: Fenner

Material and labour for leak testing of Package type AC plant of capacity up to 16.5 TR including flushing out old moisturised gas and pressuring with nitrogen gas and kept for 24 hrs as per OEM specifications, vaccumnising nitrogen and refilling of refrigerant gas complete all as specified and as directed. Note:- 1. Supply and charging of Nitrogen and refrigerant gas will be measured and paid separately. 2.Empty cylinder will returned to contractor after usage.

Material and labour for brazing/welding work at refrigerant copper pipe lines (suction/discharge) and rectify the fault and recharge the refrigerant as desired level in AC units omplete all as specified and as directed. Note : (i) Welding material, copper pipe material, welding gas cylinder shall be provided by contractor with his own transport up to near the Package AC plants inside Naval Base. (ii) Supply and charging of refrigerant gas will be measured and paid separately.

Supply and charging Refrigerant Gas R 22 in sealed cylinder all as specified and directed by Engineer in Charge.

Supply and charging Refrigerant Gas R 407C in sealed cylinder all as specified and directed by Engineer in Charge.

Supply and replace fan blade for condenser motor suitable for package/ductable AC up to capacity 16.5 TR as per existing at site complete all as specified and directed by Engineer in Charge.

Material & Labour for dismantling of Package AC (capacity up to 16.5 TR) condenser fan motor single phase 240 V upto capacity 1 HP taking out of bearing re-metaling the bearing housing, grinding, turning to the required size, cleaning of stator, including rewinding with same gauge copper insulated wire, varnishing, drying, re-assembling the motor to bring in original state including fixing on the foundation all as directed by Engineer-in charge.

Material & Labour for dismantling of Package AC (capacity up to 16.5 TR) condenser fan motor three phase 415 V upto capacity 1 HP taking out of bearing re-metaling the bearing housing, grinding, turning to the required size, cleaning of stator, including rewinding with same gauge copper insulated wire, varnishing, drying, re-assembling the motor to bring in original state including fixing on the foundation all as directed by Engineer-in charge.

Material & Labour for dismantling of Package AC (capacity up to 16.5 TR) blower motor three phase 415 V upto capacity 3 HP taking out of bearing re-metaling the bearing housing, grinding, turning to the required size, cleaning of stator, including rewinding with same gauge copper insulated wire, varnishing, drying, re-assembling the motor to bring in original state including fixing on the foundation all as directed by Engineer-in charge.

Material & Labour for attending day to day complaints pertains to various package AC plant of any capacity upto 8.75 TR as and when required by Ref-Mechanic/Electrician and helper , with necessary T&P for checking the equipment at existing location, find out the faults to the equipments (including replacement of minor parts such as decarbonizing, tightening of control cable terminations, cable glands, and end termination, repairing of defective contactors ,push switches, MCBs,or any other defective spares crimping of lugs, fuses, wires, nuts, bolts, washers, etc) complete and rectification of minor problems to make the plant functional in all respect all as directed by the Engineer- in-Charge.

Ditto All As above item No-103, but capacity of Package AC Units shall be above 8.75 TR to 16 TR.

Supply, laying of GI Pipes including welding, connecting and painting two coat of synthetic enamel paint complete of medium grade with all fittings and fixtures laid in trenches/floors or fixed to walls and ceilings etc. of size 50mm dia complete all as specified and as directed.

Amount of Credit Schedule shall be deducted to arrive the Contract Sum.

AISWARYA ENTERPRISES

Green Ray Enterprises

S. M. Enterprises