REPAIR/REPLACEMENT AND MAINTENANCE OF COOLING TOWERS AND CENTRAL AC PLANT VRF SYSTEM INSTALLED AT SAG BLDG AND DESIDOC BLDG AND CONNECTED WORKS AT METCALFE HOUSE AREA UNDER GE (I) RnD DELHI

Amount

M&L for Servicing of the window type AC 1.5/2 ton capacity of any make, including oiling/greasing the blower motor, cleaning the evaporator condenser coils externally to remove the dust, replacement of defective thimbles etc and re-fixing the air conditioner at its original position by the experienced refrigeration mechanic complete all as specified and directed. Note:- (i) Any spare part/item need to be replaced/gas charging etc shall be paid seperately under respective items. (ii) The cost of dismantling, taking out AC from window and shifting to location where directed for proper washing and servicing and refixing the same shall be deemed to be included in quoted unit rate.

All as per item Ser No 1.00 above but split type/cassette type AC/Inverter type AC 1.5/2.0/3.0/4.1 Ton

M&L in replacement Fan Motor of AC (Window/ Split Type) 1.5 TR Capacity of approved Make and required Size to suit existing AC complete all as specified and directed.

All as per Item Ser No. 3.00 above but AC (Window/Split Type). 2.0/3.0 TR Capacity

M&L in replacement rewinding Fan Motor of AC 1.5 TR/2.00 TR Capacity, (Window/Split Type) of any Make with Super Enameled Copper winding Wire of appropriate Gauge and Quantity including insulating materials complete all as specified and directed.

M&L in replacement Air circular Blower Fan Motor of AC (Split Type), 1.5 TR/2.0 TR./3.00TR Capacity complete all as specified and directed.

M&L in replacement Air Filter suitable for AC (Window type) 1.5 TR/2.0 TR Capacity complete all as specified and directed.

M&L in replacement Air Filter suitable for AC (Split type) 1.5 TR to 3.0 TR Capacity complete all as specified and directed.

M&L in replacement Capacitor Running 36 mfd – 56 mfd suitable for new/star rated AC (Window/Split Type) 1.5 TR/2.0 TR/ 3.0 TR Capacity and of any make complete all as specified and directed.

M&L in replacement Capacitor Starting 80 mfd – 120 mfd suitable for old ones AC (Window/Split Type) 1.5 TR/2.0 TR Capacity and of any make complete all as specified and directed.

M&L in replacement Fan Blades for AC (Window/Split type) 1.5/2.0 TR capacity complete all as specified and directed.

M&L in replacement Fan Motor Capacitor 4 mfd suitable for new/star rated AC (Window/Split Type) 1.5 TR/2.0 TR capacity complete all as specified and directed.

M&L in replacement Fan Motor Capacitor 6 mfd suitable for old ones AC (Window/Split Type) 1.50/2.0/3.0 TR capacity complete all as specified and directed.

M&L in replacement Front Plastic Grill (as per Sample) of AC (Window type) 1.5 TR/2.0 TR Capacity complete all as specified and directed.

M&L in replacement Front Plastic Grill for inner unit (as per Sample) of AC (Split type) 1.5 TR/2.0 TR Capacity complete all as specified and directed.

M&L in replacement runner for Air blower motor of AC (Split type) 1.5 TR/2.0TR capacity complete all as specified and directed.

M&L in replacement Single Pole Contactor 25A Capacity, MR 11W type suitable for AC (Split Type) complete all as specified and directed.

M&L in replacement Starting Relay of AC (Window/Split Type) 1.5/2.0/3.00 TR Capacity complete all as specified and directed.

M&L in replacement Strainer with Capillary Tube of AC (Window/ Split Type) 1.5/2.0/3.0 TR Capacity complete all as specified and directed.

M&L in replacement Thermostat Switch of AC (Window/Split Type) 1.5 /2.0/3.0 TR Capacity complete all as specified and directed.

S&F in replacement cooling coil suitable for window type room AC 1.5/2 ton capacity complete all as specified and directed.

S&F in replacement Condensing coil suitable for window type AC 1.5/2 ton capacity complete all as specified and directed.

S&F in replacement Condensing coil suitable for split type AC 1.5/2.0 Ton capacity complete all as specified and directed.

S&F in replacement cooling coil suitable for split type AC 1.5/2.0 Ton capacity complete all as specified and directed.

S&F in replacement Indoor unit suitable for 1.5 TR split type AC complete all as specified and directed.

S&F in replacement outdoor unit suitable for 1.5 TR split type AC without compressor complete all as specified and directed.

S&F in replacement Indoor unit suitable for 2 TR split type AC complete all as specified and directed.

S&F in replacement outdoor unit suitable 2 TR split type AC, without compressor complete all as specified and directed.

Supply & Fixing in replacement hermetically sealed compressor for split/ window type AC capacity 1.5 Ton complete all as specified and directed.

All as per ser item No. 29.00 above but for split/ window type AC capacity 2.0 Ton.

All as per ser item No. 29.00 above but for split type AC capacity 3.0 Ton three phase run.

Taking down/up defective AC 1.5 TR Capacity (Window/Split Type), Transportation from MES Store Yard/Site to Workshop and Back including re-fixing /re-installing after taking out defective/burnt Com-pressor Sealed Unit and providing new Compressor Rotary/ Reciprocating as per site requirment of same Capacity from Authorised Dealer including Flushing of Condenser and Charging with required quantity of appropriate Refrigerant Gas R22/R410 including re-connection of Electric Connections, functioning AC complete in all respect and Testing, complete all as specified and directed. Note:- Compressor shall be procured from authorised dealer and contractor shall submit purchase vouchers alongwith written guarantee/warantee as per manufacturer.

All as per Item No. 32.00 above but AC 2.0/3.0 TR Capacity (Window/Split Type).

M&L in replacement PCB with remote and sensor for window type AC upto 2 Ton capacity including cells of remote complete all as specified and directed .

M&L in replacement PCB with remote including sensor for Split type AC 2.0 to 3.0 Ton capacity including remote cells complete all as specified and directed .

M&L in replacement PCB & motherboard with remote complete set for Inverter Split type AC up to 2 Ton capacity including remote cell complete all as specified and directed .

M&L in replacement Remote of AC ( Window/Split Type) 1.5/2.0 TR capacity (As per sample or as per site requirement) including remote cell, complete all as specified and directed.

S&F in replacement wiring kit suitable for 1.5 to 2.0 ton capacity AC complete all as specified and directed.

M&L in replacement gas charging pin valve complete all as specified and directed.

Taking out window type AC complete unit from any height/ any floor up to six storey building and shifting to another location in the same or other building in the complex including refixing & reconnection of the unit, testing complete all as specified and directed.

Taking out split type AC complete indoor and outdoor unit from any height/ any floor up to six storey building by including pumping down the gas into the compressor by controlling the suction and discharge valves , disconnecting the suction and dischagre copper piping and shifting to another locatiion in the same or other building in the complex including refixing of the unit with electric connections and testing complete all as specified and directed.

Supply and charging the refrigerant gas R22 in window type AC upto 2 ton capacity after and including testing with application of nitrogen gas pressure to find out any leakage, brazing and stopping of all leakage detected, re-application of nitorgen pressure to ensure leak proof gas circulator system flushing out the nitrogen gas complete all as specified and directed.

All as per ser item No. 42 above but R- 410/32 for split type AC up to 2 TR capacity.

S&F in replacement Hermatically Sealed compressor for 300Ltrs capacity Deep freezer including brazing the sunction and discharge lines complete all specified and directed. Note:- Compressor shall procured compressore from authorised dealer and contractor shall submit purchase vouchers alongwith written guarantee/warantee as per manufacturer.

S&F in replacement of casing of window type AC including company fitted condensing & cooling coil suitable for 1.5 TR capacity complete including PCB except compressor complete all as specified and directed.

M&L in replacement split valve ¼” for split AC up to 2.00 ton capacity complete all as specified and directed.

All as per ser item No. 46.00 above but of Size 1/2".

S&F in replacement compressor shut off valve 3/8" for split AC up to 2.00 ton capacity complete all as specified and directed.

S&F in replacement compressor shut off valve 5/8" for split AC up to 2.00 ton capacity complete all as specified and directed.

S & F in replacement of electrolyte grade copper tubing of size 1/4" dia,having thickness 0.9mm suitable for any type of split type AC including synthetic rubber foam complete all as specified and directed. Note : - The quoted rate is inclusive of necessary T&P, Rope, Ladder etc with safety equipment for execution the work upto six stories building.

All as per item Ser No. 50.00 above but size 1/2" dia, having thickness 1.25mm

All as per item Ser No. 50.00 above but size 3/8" dia, having thickness 1.25mm

All as per item Ser No. 50.00 above but size 5/8" dia, having thickness 1.25mm

S&F in replacement High density polyethylene pipes 20 mm dia (HDPE) of pressure rating 6 kgf/cm2, laid in wall/ceiling including all clamps & accessories and connecting the condensate pipe of ACs to this conduit for proper drainout of condensate water from ACs of Bldgs upto 6 (six) storey complete all as specified and directed.

All as per item No. 54 above but size 40mm dia

S&F in replacement synthetic rubber foam for insulation for refrigerant copper piping of existing size 1/4" to 5/8" internal dia, split type AC complete all as specified and directed. Note : - The quoted rate is inclusive of necessary T&P, Rope, Ladder etc with safety equipment for execution the work upto six stories building.

S&F in replacement Hermatically Sealed compressor for 40/80 Ltrs capacity water cooler including brazing the suction and discharge lines complete all specified and dircted. Note:- Compressor shall procured compressore from authorised dealer and submit purchase vouchers alongwith written guarantee/warantee as per manufacturer.

All as per item No 57.00 above but compressor for water cooler 60/120 Ltr capacity

S&F in replacement metal plug top Single pole & Neutral and earth, 20 Amps, 240 volts suitalbe for sheet metal enclosures complete all as specified and directed.

S&F in repalcement sheet metal enclosures with clad socket & plug top, Single pole and neutral enclosure with a two pin and earth plug and socket including MCB SP, 25 Amps, 240 volts complete all as specified and directed.

S&F in repalcement sheet metal enclosures with clad socket & plug top, Triple pole and earth, encolsure with a three pin and earth plug with socket with one triple pole MCB complete including MCB TP 63 Amps 240 volts complete all as specified and directed.

S&F in replacement PVC insulated flexible copper conductor 3 core 1100 volts grade of size 2.50 Sqmm cable complete all as specified and directed.

S&F in replacement PVC insulated flexible copper conductor cable 1100 volts grade, 3 core of size 1.5 Sqmm cable complete all all as specified and directed.

M&L in replacement submain wiring including PVC conduit 2 run 4.00 Sqmm cable PVC insulated copper conductor multi - stranded FRLS cable drawn through PVC conduit 25mm dia medium duty with all accessories including 4.0 Sqmm multi stranded copper conductor cable PVC insulated unsheathed for earth continuity connected to common earth dolly complete all as specified and directed. Note:- 3 RM of 4 Sqmm cable & 01 RM of PVC conduit shall be measured as one RM.

S&F MS work as in replacement of AC stand suitable for out door AC unit (split/cassette type), capacity of 2.0/3.0 TR made out of mild steel angle iron 40x40x6mm, including fixing arrangements like welding, fabrication and nuts & bolts etc upto six stories building complete all as specified and as directed Note :- (i) Dismension and design of stand shall be as approved by Engineer-in-Charge. (ii) Steel surfaces shall be painted with 2 coats of synthetic enamel paint over a coat of red oxide primer including preperation of surfaces and quoted rate shall deemed to be included for this provision.

S&F in replacement reverse valve system made of copper for heating option suitable for 1.5/2.0 ton split / window type AC complete all as specified and as directed.

All as per item No. 67.00 above but capacity 120/150 Ltrs

M&L for servicing of water cooler of any capacity (40 Ltrs to 150 Ltrs) including cleaning of water cooler from inside and outside with potassium permaganates, servicing of cooling coil, fan, motor, condensor, fan blades and its connected water and refrigerant fittings complete all as specified and directed.

Supply and charging the gas in the water cooler of any make and capacity up to 150 ltrs capacity including testing and detecting leakage if any with nitrogen gas and vaccum the system after rectification of all leakages complete all as specified and directed.

S&F in replacement thermostat switch suitable for water cooler of any make & size complete all as specified and directed.

S&F in replacement starting relay/over load relay suitable for water cooler of any make & size complete all as specified and directed.

S&F in replacement push cock, 15 mm bore, chromium plated, heavy duty suitable for water cooler of any make and capacity complete all as specified and directed.

M&L for preparation of old painted surfaces of water cooler of upto capacity 150 Ltrs by removing old deteriorated paint, making surfaces smooth and applying two coats of synthetic enamel paint by spray painting complete all as specified and directed.

S&F in replacement fan motor suitalbe for water cooler as per existing make and capacity upto 150 ltrs complete all as specified and directed.

S&F in replacement of condenser fan of any make suitable for water cooler upto 150 ltrs capacity complete all as specified and directed.

S&F in replacement 15 mm dia PVC connection of length upto 600mm with PTMT nuts on both ends complete all as specified and directed.

S&F in replacement condenser coil suitable for water cooler upto 150 ltrs capacity complete all as specifed and directed.

S&F in replacement steel waste water tray suitable for water cooler upto 150 ltrs capacity complete all as specifed and directed.

M&L for servicing of desert cooler of any size including cleaning of desert cooler from inside & outside repair/replacement of defective/unserviceable parts, i.e. fan kit, motor, water pump and connected accessories complete all as specified and directed. Note : Unserviceable parts required for replacement shall be measured and paid separately as 'supply only' under respective items of this schedule.

M&L for painting of desert cooler capacity upto 4000 Cfm with one coat of approved synthetic enamel paint inside & outside including fan/fan blade/brackets after scrapping the rust,peal of paint and preparation of surface complete all as specified and directed Note : The rates are inclusive of taking down cooler from any height, removal to workshop for painiting and refixing in position after painting including connection and testing.

Supply only desert cooler sub mersible water pump complete with electric motor single phase 230 volts 50Hz including lead, connecting & testing complete all as specified and directed.

supply only for desert cooler fan motor,copper wound suitable for upto 450mm sweep including metal fan blades SP 230 volts 50HZ including legs, rubber bush nuts/bolts for fixing of fan motor complete with connection & testing complete all as specified and directed.

S&F in repalcement of commercial ply wood BWP 4mm thick ISI marked for desert cooler of any size to close the opening between desert cooler grill and window complete all as specified and directed

S&F in replacement plug top 3 pin 5 Amps complete all as specified and directed.

S&F in replacement of plug top 3 pin 15 Amps complete all as specified and directed

S&F in replacement of motor capacitor 2.5/3.15/4 mfd complete all as specified and directed.

S&F in replacement of front grill made of MS complete with air guide vanes suitable for desert cooler of capacity 4000 Cfm complete all as specified and directed.

S&F in replacement of desert cooler body, capacity upto 4000 cfm without side panels made out of galvanised iron sheets of 22 gauge for bottom tank & 20 gauge for top cover of desert cooler body duly painted with red-oxide primer & 2 coat of synthetic enameled paint complete with fixing of all spare & accessories complete all as specified & directed

S&F in replacement of float valve assembly with PTMT ferrule 15 mm dia and PVC ball valve suitable for water cooler up to 150 ltrs capacity and desert cooler upto 4000 Cfm complete all as specifeid & directed

S&F in replacement wood wool pad,(Khus Khas) set of three covered by GI wire mesh suitable for desert cooler complete all as specifed & directed

S&F in replacement desert coolers complete with side panels made out of galvanised iron sheets of 22 gauge for bottom tank & 20 gauge for top cover of desert cooler body including suitable size fan, submersible pump etc complete set suitable of capacity 4000 Cfm all spare & accessories complete all as specified and directed. Note :- Old unserviceable desert coolers will be deposited with MES store yard and taken over in charge by the deptt.

Taking down Ceiling fans/exhaust fans/Wall fans, Ceiling cable end, dismantling blades and removing fan and blades & deposited to E/M store yard and refixing the same at site after necessary repair work complete all as specified and directed.

M & L for overhauling of ceiling fan/pedestal/exhaust/table/air circulating fan of any size or make opening the fan motor, overhauling by removing dust from field coils including varnishing of field coils and greasing motor with superior qauality grease for smooth running inlcuding cleaning and washing the blades and assembling of fan motor and refixing at the same location, connection & testing complete all as specified and directed.

M & L for removing of burnt out winding wire from ceiling fan of any make of size 1200/1400 mm sweep including cleaning of slots etc and rewinding with super enameled copper winding wire as per existing size/gauge including insulating material and varnishing complete all as specified & directed.

All as per item srl No 95.00 above but for exhaust fans of size 300 mm sweep to 380 mm sweep

All as per item srl No 95.00 above but for pedestal fan/Air circulator fan of size 400 mm to 600 mm sweep.

All as per srl item No 95.00 above but for table fan/wall mounted fan of 450 mm sweep

Note for item srl No 95 to 98 :- (i) Defective fans shall be collected from MES stores and deposit the same after necessary repair work. (ii) Painting & replacement of defective ball bearings and rubber seal shall be measured and paid separately under relevant items.

M&L in replacement ball bearing for ceilng/table/pedestal/ Air-circulators fan of size 6201/6202 complete all as specified & directed

All as per srl item No 99.00 above but for exhaust fan of size 6203/6204 .

M&L in replacement rubber real of suitable size for ceiling fan complete all as specified and directed

M&L in replacement gun metal bush suitable for any type/model/size of fans complete all as specified and directed

S&F in replacement fan step regulator, modular type, 120W, 2 Module complete all as specified and directed

M&L for painting of ceiling fans any make and size at site with one coat of superior quality synthetic enameled paint of approved make & colour by spraying after filling cavities with filler and preparation of surface including marking complete all as specified and directed

All as per item No 104.00 above but exhaust fan/wall fans/Pedestral fans of size 300 mm to 450 mm sweep.

S&F in replacement of voltage stabilizer 4 KVA suitable for window/split type AC of capacity upto 1.5 TR working on AC 240 V,50Hz single phase complete all as specified and directed.

S&F in replacement voltage stabilizer 5 KVA suitable for window/split type AC of capacity 2 TR working on AC 240 V, 50Hz, single phase complete all as specified and directed.

S&F in replacement wall mounted fan high speed 450mm sweep working on AC 240 V, 50Hz, single phase copper winding complete all as specified and directed. Note :- Old/unserviceable fan shall be deposited in MES store yard and taken over by the deptt.

S&F in replacement Pedestal fan 450mm sweep working on AC 240 V,50Hz, single phase copper winding complete all as specified and directed. Note :- Old/unserviceable fan shall be deposited in MES store yard and taken over by the deptt.

S&F in replacement exhaust fan, steel body, AC single Phase, 230V of size 300mm sweep with, blades, frame and GI louvers in copper winding complete all as specified and directed. Note :- Old/unserviceable fan shall be deposited in MES store yard and taken over by the deptt.

S&F in replacement exhaust fan made of sturdy Engineering plastic complete with louvers shutter, voltage 230V, 50 Hz, RPM 1200, Copper winding of sweep 300mm complete all as specified and directed. Note :- Old/unserviceable fan shall be deposited in MES store yard and taken over by the deptt.

Supply and fixing in replacment ceiling fans complete with blades, down rods, electronic regulator and accessories, 230 V, 1200 mm sweep. Min air delivery 210 CFM with service value 6.00 BEE. Five star rated with brushless direct current motor (BLDC) copper winding complete all as specified and directed. Note :- Old/unserviceable fan shall be deposited in MES store yard and taken over by the deptt.

All as per item 112.00 above but 1400 mm sweep, min air delivery 245 CFM.

Taking down of geyser of capacity 25 ltrs after disconnecting the water and electric connections etc complete all as directed and S&F stainless steel tank with assembly to make the geyser fully functional and refixing the same at its orignal position including connection & testing complete all as specified and directed.

All as per ser item No. 114.00 above but capacity 50 ltrs.

S&F in replacement Heating element triangle/round type as per existing, capacity 1.5KW of Hot appliances complete all as specified and directed. .

All as per ser item No. 116.00 above but capacity 2KW.

S&F in replacement thermostate as per existing of capacity 25/50 ltrs of Hot appliances complete all as specified and directed.

Supply and fixing in replacement Oil Room Heater, 2900 Watt, Suitable for 11 Fin,weight 18 Kg with fan complete all as specified and directed.

Supply and fixing in replacement indicator light (Red & Green) as per existing of capacity 25/50 ltrs of Hot appliances complete all as specified and directed.

S&F in replacement shut off valve as per existing of capacity 25/50 ltrs of Hot appliances complete all as specified and directed. .

S&F in replacement Thermo insulation glass wool as per existing of capacity 25/50 ltrs of Hot appliances complete all as specified and directed. .

S&F in replacement water connection CP for inlet & outlet (Hot & Cold) as per existing of capacity 25/50 ltrs of Hot appliances complete all as specified and directed. .

S&F in replacement Heater suitable for double door refrigerator, capacity 299/310 Ltrs complete all as specified and directed.

S&F in replacement PVC distributors, PVC elbow & PVC Pipe best quality 15mm dia for desert cooler of capacity 4000 CFM complete all as specifed and directed.

S&F in replacement angle valve, 15 mm dia, cast copper alloy, screwed down, high pressure,with crutch handle, fancy type, chromium plated and fixed complete all as specifed and directed.

Supply and fixing in replacement electric water heater, storage type steel body with copper inner tank and heating element upto 2 KW capacity 25 litre, BEE 5 Star rated, connecting & testting complete with all accessories such as safety valve, thermostate, NRV, connection piece etc complete all as specifed and directed. Note :- Old/unserviceable gyser shall be deposited in MES store yard and taken over by the deptt.

All as per item srl No 127.00 above but 50 ltrs capacity

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 completely with servicing by using chemicals approved by OEM and replacement of all defective/unserviceable parts of units through OEM (M/S HITACHI), re-assembling, setting all parameters by using softwares by an OEM Engineer- (M/s Hitachi) complete all as specified and directed.

Dismantling of any types of indoor unit covers of VRV/VRF unit of any capacity completely by disconnecting/ covering all electronic boards and wiring and servicing cooling coils, expansion valves,indoor refrigerant pipe lines,indoor drainage pumps, drainage lines completely wet servicing by using approved chemicals and replace all defective/ unserviceable parts of units by OEM (Make : Hitachi) by using tray jackets including cleaning the surface after servicing testing complete all as specified and directed.

NOTE FOR ITEM NO 129 & 130 :- (i) Out door units (Make:Hitachi)of capacity mentioned below:- (a) Total number of outdoor unit-06 No and total capacity of outdoor units -100HP.(16x4+18x2) (ii) Indoor units (Make:Hitachi) of capacity mentioned below:- (Total 47 Units)- (a) Ductable 1.60 TR : 31 Nos. (b) Ductable 2.00 TR : 12 Nos. (c) Ductable 2.60 TR : 04 Nos (iii) Remote controls Note-The Repair/maintanance of VRF/VRV plant under this contract shall be done through Manufacturer i.e. M/s Hitachi and quoted rate shall deemed to be included for this provision.

S&F in replacement Four -way reverse valve complete all as specified and directed.

S&F in replacement inverter PCB for VRF system 4 x 16 HP & 2 x 18 HP as per existing OEM complete all as specified and directed.

S&F in replacement Control PCB for VRF system 4 x 16 HP & 2 x 18 HP as per existing OEM complete all as specified and directed.

S&F in replacement Power Transistor for VRF system 4 x 16 HP & 2 x 18 HP as per existing OEM complete all as specified and directed.

S&F in replacement Divort Module for VRF system 4 x 16 HP & 2 x 18 HP as per existing OEM complete all as specified and directed.

M&L for repairing old Indoor PCB for VRF system 4 x 16 HP & 2 x 18 HP as per existing OEM complete all as specified and directed.

S&F and testing in replacement of Indoor PCB for VRF system 4 x 16 HP & 2 x 18 HP as per existing OEM complete all as specified and directed.

Supply and charging the refrigerant R-410a for VRF system 4 x 16 HP & 2 x 18 HP as per existing OEM including Pressure testing with Application of Nitrogen Gas to find out any leakage, brazing and stopping of all leakage detected, re-application of nitorgen pressure to ensure leak proof gas circulator system and flushing out the nitrogen gas complete all as specified and directed.

Supply, fixing and testing in replacement of indoor unit & out door unit sensor for VRF system 4 x 16 HP & 2 x 18 HP as per existing OEM complete all as specified and directed.

Supply, installation and testing in replacement of Hermitically sealed scroll compressor 8 HP, three phase for 4 x 16 HP VRF system as per existing OEM complete all as specified and directed.

Supply, installation and testing in replacement of Hermitically sealed scroll compressor 9 HP, three phase for 2 x 18 HP VRF system as per existing OEM complete all as specified and directed.

M&L for protective coating or Air conditioners gas leak solution from pipes/brazing joints, cooling coils, or all unprotected copper pipes on weather/environmental effect/prolonged corroded condition for improve their life span and protect from corrosion and gas leak problem by applying single step coat of Automotive solution or copper preventive coat or any other equivalent solution ISI marked and approved by OEM by spray coating machine in all outer door unit of VRV system 4x16HP and 2x18 HP and their connected indoor units all types under a skilled/qualified supervisor's, supervision complete all as specified and directed.

M P TYAGI ENGINEERS AND CONTRACTORS

Pradeep Bros