REPAIR AND ROUTINE MAINTENANCE OF CENTRAL AC PLANT AND COLD STORAGE INSTALLATION AT NAD, MWC, CCDT, CG COMPLEX ,INS VAJRABAHU AND VRV/VRF SYSTEM, FIRE FIGHTING SYSTEM INSTALLED AT HQ WNC COMMAND POST BLDG AT NAVAL DOCKYARD UNDER GE (NW) KUNJALI

Comprehensive maintenance of central air conditioning plant 3 x 100 TR capacity opening/checking/claening of air conditioner's filters if required replace the filters, including the type of filter match with existing clening of coils, and fins as per regular maintenance schdule for smooth effectively functioning of AC Plants. Checking the motor, blower, drain line, coils, operating pressures and temperatures, the return and supply lines, refrigerant levels, and connections also clean the coils during a routine maintenance visit filter should be changed depends on a variety of factors, including the type of filter match with existing at HQ WNC building comprising of equipment mentioned at item No 3.00 of Sch 'A' Part I all as specified and directed . The maintenace schdule shall be as below:-(a) Check driving coupling of compressor shaft and motor for level and tightness, oil level in compressure crank case, check pressure guage, if gas leak is suspected, test circuit with test lamp or leak detector, also check compressure and motor for unuseal noise, vibration and over heating of bearings. (b) Cleaning of AHU unit filters with pressure if required rinse with clean with fresh water and dry before replacing. (c) Remove starter cover below of all and clean dust & the contacts with pressure, CTC/ alcohal/sprit and adjust the tensin of the contacts. testing of low pressure lubrication oil cutout laid down also measure insulation of all motors and record readings. sufficient lubricants of all motors/compressor motors and chillling water pump motor etc.

Comprehensive maintenance of VRV/VRF system at roof top of HQ WNC building comprising of following equipmentcomplete all as specified and direted. including dismantling of out door unit covers of VRV/VRF unit of any capacity completely by disconnecting/ covering all electric/electronic boards and wiring and servicing condensor coils and compressor, reservoir areas completly wet servicing by using approved chemicals by OEM and re-assembling setting all parameters by using softwares by an OEM Engineer, testing of indoor unit and Dismantling of four way high wall indoor unit covers of VRV/VRFunit of any capacity completely by disconnecting/ covering all electronic boards and wiring and servicing cooling coils, expansion valves, indoor drainage pumps, drainage lines completely wet servicing by using approved chemicals by OEM manufacturer by using tray jackets including cleaning the surface after servicing testing all ascomplete all as specified and directed. Note :- Test report shall be kept on record duly signed :- Out door units (Make: Daikin)of capacity mentioned below:- (a) 12 HP : 02 Nos. (Model No. RXYQ 12 PAY6) (b) 16 HP : 02 Nos. (Model No. RXYQ 16 PAY6) (c) 18 HP : 02 Nos. (Model No. RXYQ 18 PAY6) Indoor units (Make: Daikin) of capacity mentioned below:- (a) 6.54 TR: 04 Nos. (Ductable units) (b) 1.33 TR: 08 Nos. (c) 1.65 TR: 03 Nos. (d) 3.3 TR: 08 Nos. (e) 4.12 TR: 02 Nos. Copper piping for flow of refrigerant : 01 set Drain water piping (PVC pipes): 01 set, Supply air Ducting: 01 set Remote controls: 25 Nos.

Comprehensive maintenance of fire alarm system including minor consumeable electric / electonic spares for smooth functioning of AFDS of HQ WNC building comprising of equipment mentioned as undercomplete all as specified and direted. :- Addressable Multisensor detector (Photo + Thermal) with base with galvanised steel, back box, and all mounting Accessories : 440 Nos. (Exsisting Make: Siemens) Analogue Addressable Heat detector : 03 Nos. (Exsisting Make: Siemens) Addressable Dual Action Manual Pull Stations including MS box of suitable size for concealing the MCP in the wall : 49 Nos. (Exsisting Make: Siemens) Addressable Monitor Modules : 04 Nos. (Exsisting Make: Siemens) Addressable Control Modules with 230V 2A relay : 14 Nos. (Exsisting Make: Siemens) Addressable Control Module For Hooter : 11 Nos. (Exsisting Make: Siemens) Electronic Hooter : 49 Nos. (Exsisting Make: Siemens) Fault Isolator Module : 25 Nos. (Exsisting Make: Siemens) Response Indicator consisting of Red LED : 183 Nos. (Exsisting Make: Siemens)

Comprehensive maintenance of fire fighting and sprinkling system at HQ WNC building comprising of following equipementscomplete all as specified and direted. :- Fire fighting hydrant pumps 75 HP each - 02 Nos. Sprinkler pump 50 HP - 01 No. Quartzoid sprinklers - 900 Nos. Fire hoses with boxes - 21 Nos. MS ERW piping and GI tubing Jockey pumps 05 HP each - 02 Nos.

Supply and charging of fresh gas R-410 for VRF unit, make as approved complete all as sepcified and directed .

Supply and fix the Noise filter for out door units of VRF 12 to 18 HP cap unit suitable for Out Door Unit (Model No- RXYQ12PRY6 to RXYQ18PRY6 of Exsisting Make: Daikin or equivalent ) including testing all as specified and directed

Supply and fix the Fan board Cat Part No- R 61037280 for out door units of VRF 12 to 18 HP unit suitable for out door (Model No-RXYQ12PRY6 to RXYQ18PRY6 of existing Make: Daikin or equivalent ) including testing complete all as specified and directed.

Supply and fix Condensor coil, for Out door units of VRF Unit suitable for Out Door Unit (Model No- RXYQ12PRY6 to RXYQ18PRY6 of existing Make: Daikin or equivalent ) including leak testing by using nitrogen gas all as per OEM instructions complete all as specified and directed

Supply and fix PCB for four way casette/hiwall type indoor units of VRF Unit suitable for INDOOR UNIT (Model - FXFQ100PVE9 of Make: existing Daikin or equivalent ) including testing complete all as specified and directed

Supply and fix blower motor for four way casette/hiwall type indoor units of VRF unit suitable for INDOOR UNIT (Model - FXFQ100PVE9 of existing Make: Daikin or equivalent ) including testing complete all as specified and directed