MANNING AND OPERATION INCLUDING PERIODICAL AND ESSENTIAL REPAIRS TO CENTRAL AC PLANTS AT NAD EXPLOSIVE NON EXPLOSIVE AREA UNDER GE NW KARANJA

Amount

Manning and operation of under mentioned central AC plants comprising the various equipments as mentioned below in three shifts i.e. 0600 Hrs to 1400 Hrs, 1400 Hrs to 2200 Hrs, 2200 Hrs to 0600 Hrs including sunday & Holiday maintaining the documentation as directed for DX type central AC plant of capacity 70 TR installed at DBM 12/13 AC plant for maintaining Temp 74 + 4F and humidity 60 + 5% & for DX type central AC plant of capacity 30 TR installed at DBM 14 AC plant for maintaining Temp 74 + 4F and humidity 60 + 5% in AC spaces comprising of under mentioned plants equipments and accessaries.

For DBM 12/13 DX type Central AC Plant (70 TR)

(i) Condensing units having reciprocating type Accel make compressors, 3 Ph electric motors control panles and other accessories -03 Nos

(ii) Electrical systems comprising of main panles, AHU panel, control cables, earthing systems, interlocking panel wiring systems etc -01 Sets

(iii) Cooling water circulating system comprising of 02 Nos water pumps, water piping system, control valves, FRP cooling tower, PVC water tank etc -01 Sets

(iv) Supply air and return air ducts comprising of diffuser, grills, insulatios etc -01 Sets

(v) AHU of 8500 CFM capacity , heating bands, control wiring system, fresh air grills etc complete -01 Sets

(vi) Sensing devices such as RH sensor, temp gauges control circuits etc -01 Sets

For DBM 14 DX type Central AC Plant (30 TR)

(i) Condensing units having reciprocating type Accel make compressors, 3 Ph electric motors control panles and other accessories -03 Nos

(ii) Electrical systems comprising of main panles, AHU panel, control cables, earthing systems, interlocking panel wiring systems etc -01 Sets

(iii) Cooling water circulating system comprising of 02 Nos water pumps, water piping system, control valves, FRP capacity cooling tower, PVC water tank etc -01 Sets

(iv) Supply air and return air ducts comprising of diffuser, grills, insulatios etc -01 Sets

(v) AHU of 6500 CFM capacity , heating bands, control wiring system, fresh air grills etc complete -01 Sets

(vi) Sensing devices such as RH sensor, temp gauges control circuits etc -01 Sets

Manning and operation of under mentioned central AC plants comprising the various equipments as mentioned below in three shifts i.e. 0600 Hrs to 1400 Hrs, 1400 Hrs to 2200 Hrs, 2200 Hrs to 0600 Hrs including sunday & Holiday maintaining the documentation as directed for DX typechilled water type AC plant of capacity 50 TR installed at DBM 17/SBM 3 AC plant for maintaining Temp 22 C + 3 C and humidity 55 + 5% & for DX type Chilled water type AC plant of capacity 46 TR installed at SBM 4 AC plant for maintaining Temp 74 + 4F and humidity 60 + 5% in AC spaces comprising of under mentioned plants equipments and accessaries.

For DBM 17/SBM-3 DX type Chilled water type AC Plant (50 TR)

(i) Condensing units having reciprocating type Accel make compressors, 3 Ph electric motors control panles and other accessories -03 Nos

(ii) Electrical systems comprising of main panles, AHU panel, control cables, earthing systems, interlocking panel wiring systems etc -01 Sets

(iii) Cooling water circulating system comprising of 02 Nos water pumps, water piping system, control valves, FRPcapacity cooling tower, PVC water tank etc -01 Sets

(iv) Supply air and return air ducts comprising of diffuser, grills, insulatios etc -01 Sets

(v) AHU of 15250 CFM capacity, heating bands, control wiring system, fresh air grills etc complete -01 Sets

(vi) Sensing devices such as RH sensor, temp gauges control circuits etc -01 Sets

For SBM-4 DX type Chilled water type AC Plant (46 TR)

(i) Condensing units having reciprocating type Accel make compressors, 3 Ph electric motors control panles and other accessories -03 Nos

(ii) Electrical systems comprising of main panles, AHU panel, control cables, earthing systems, interlocking panel wiring systems etc -01 Sets

(iii) Cooling water circulating system comprising of 02 Nos water pumps, water piping system, control valves, FRP capacity cooling tower, PVC water tank etc -01 Sets

(iv) Supply air and return air ducts comprising of diffuser, grills, insulatios etc -01 Sets

(v) AHU of 15000 CFM capacity, heating bands, control wiring system, fresh air grills etc complete -01 Sets

(vi) Sensing devices such as RH sensor, temp gauges control circuits etc -01 Sets

Manning and operation of under mentioned central AC plants comprising the various equipments as mentioned below in three shifts i.e. 0600 Hrs to 1400 Hrs, 1400 Hrs to 2200 Hrs, 2200 Hrs to 0600 Hrs including sunday & Holiday maintaining the documentation as directed for DX type central AC plant of capacity 29 TR installed at DBM 11 AC plant for maintaining Temp 74 + 5F and humidity 60 + 5% & for DX type central AC plant of capacity 37 TR installed at DBM 15 AC plant for maintaining Temp 23 C + 2 C and humidity 60 + 5% in AC spaces comprising of under mentioned plants equipments and accessaries.

For DBM 11 DX type Central AC Plant (29 TR)

(i) Condensing units having reciprocating type Accel make compressors, 3 Ph electric motors control panles and other accessories -03 Sets

(ii) Electrical systems comprising of main panles, AHU panel, control cables, earthing systems, interlocking panel wiring systems etc -01 Sets

(iii) Cooling water circulating system comprising of 02 Nos water pumps, water piping system, control valves,FRP cooling tower, PVC water tank etc -01 Set

(iv) Supply air and return air ducts comprising of diffuser, grills, insulatios etc -01 Set

(v) AHU of 6500 CFM capacity , heating bands, control wiring system, fresh air grills etc complete -01 Set

(vi) Sensing devices such as RH sensor, temp gauges control circuits etc -01 Set

For DBM 15 DX type Chilled Water type AC Plant (37 TR)

(i) Condensing units having reciprocating type Accel make compressors, 3 Ph electric motors control panles and other accessories -03 Sets

(ii) Electrical systems comprising of main panles, AHU panel, control cables, earthing systems, interlocking panel wiring systems etc -01 Sets

(iii) Cooling water circulating system comprising of 02 Nos water pumps, water piping system, control valves,45 TR cooling tower, PVC water tank etc -01 Set

(iv) Supply air and return air ducts comprising of diffuser, grills, insulatios etc -01 Set

(v) AHU of 11200 CFM capacity , heating bands, control wiring system, fresh air grills etc complete -01 Set

(vi) Sensing devices such as RH sensor, temp gauges control circuits etc -01 Set

Manning and operation of under mentioned central AC plants comprising the various equipments as mentioned below in three shifts i.e. 0600 Hrs to 1400 Hrs, 1400 Hrs to 2200 Hrs, 2200 Hrs to 0600 Hrs including sunday & Holiday maintaining the documentation as directed for DX type Chilled water type AC plant of capacity 50TR installed at SM-39 AC plant for maintaining Temp 23 C + 2 C and humidity 60 + 5% & for DX type central AC plant of capacity 104 TR installed at TAL (Works Shop) AC plant for maintaining Temp 23 C + 2 C and humidity 60 + 5% in AC spaces comprising of under mentioned plants equipments and accessaries.

For SBM-39 DX type Chilled Water type AC Plant (50 TR)

(i) Condensing units having reciprocating type voltas make compressors, 3 Ph electric motors control panles and other accessories -03 Sets

(ii) Electrical systems comprising of main panles, AHU panel, control cables, earthing systems, interlocking panel wiring systems etc -01 Set

(iii) Cooling water circulating system comprising of 02 Nos 20 HP capacity water pumps, water piping system, control valves, FRP cooling tower, PVC water tank etc -01 Set

(iv) Supply air and return air ducts comprising of diffuser, grills, insulatios etc -01 Set

(v) AHU of 12600 CFM capacity , heating bands, control wiring system, fresh air grills etc complete -01 Set

(vi) Sensing devices such as RH sensor, temp gauges control circuits etc -01 Set

For TAL (Works Shop) DX type Chilled Water type AC Plant (104 TR)

(i) Condensing units having reciprocating type Kirloskar make compressors, 3 Ph electric motors control panles and other accessories -03 Sets

(ii) Electrical systems comprising of main panles, AHU panel, control cables, earthing systems, interlocking panel wiring systems etc -01 Set

(iii) Cooling water circulating system comprising of 02 Nos 20 HP capacity water pumps, water piping system, control valves,FRP cooling tower, PVC water tank etc -01 Set

(iv) Supply air and return air ducts comprising of diffuser, grills, insulatios etc -01 Set

(v) AHU of 29000 CFM capacity , heating bands, control wiring system, fresh air grills etc complete -01 Set

(vi) Sensing devices such as RH sensor, temp gauges control circuits etc -01 Set

Note for Sl item No 1 TO 4.14 : (a) The contractor will employ suitable staff having qualification ITI / sufficient experience in Refrigeration/ Air conditioning field. Staffs police verification and other authenticated documantations are mandatory for security will be responsiblity of contractor. (b) Contractor will provide the uniform as reccommended by Engr -In - Charge. The safty of equipment neccessary T & P shall be maintained at all the installations. The contractor shall be fully responsible for safety of staff employed. Department will not be held responsible for any eventualty occured to staff employed. The contractor will be responsible / liabile to pay all type compensation etc to employed staff in accordance with prevailing labour laws in country/ staff. (c) Charges of documantation statainerys including maintaining documantations such as attendance register, Log sheets, complaint registers etc as per sample provided by Engr -In - charge will be responsibility of contractor.

Note for Sl. Item No. 1 to 4.14 : Carrying out operation of equipments, as a part of day to day operation and in accordance with relevant PM checklists and as per schedules that will be prepared upon activation of contract. The salient features in these checklists are as follows :(i) Starting and stopping of the equipment as per requirement of the user. (ii) Checkingh the water level in the colling tower (applicable for water cooled units), (iii) Recording the equipment operational parameter including pump pressure and motor amps in the logsheet. (iv) Checking the central AC or Refrigeration system and equipment such as compressors,motors,pumps, cooling towers and their electrical controls on the respective equipment. (v) Checking the refrigeration system for any leaks. (vi) Checking the electrical and refrigeration control system for operation and adjustments of set values as necessary. (vii) Lubrication of all necessary points in the system & its components in line with the checklist.

PERIODICAL MAINTENANCE

Periodical and maintenance of under mentioned central AC plants comprising the various equipments as mentioned below including maintaining the documentation as directed for DX type central AC plant of capacity 70 TR installed at DBM 12/13 AC plant for maintaining Temp 74 + 4F and humidity 60 + 5% & AC plant of capacity 30 TR installed at DBM 14 AC plant for maintaining Temp 74 + 4F and humidity 60 + 5% in AC spaces comprising of under mentioned plants equipments and accessaries as mentioned in Sch "Manning and operation" Sl item No 01.

Periodical and maintenance of under mentioned central AC plants comprising the various equipments as mentioned below including maintaining the documentation as directed for DX type central AC plant of capacity 50 TR installed at DBM 17/SBM 3 AC plant for maintaining Temp 22 C + 3 C and humidity 55 + 5% & AC plant of capacity 46 TR installed at SBM 4 AC plant for maintaining Temp 74 + 4F and humidity 60 + 5% in AC spaces comprising of under mentioned plants equipments and accessaries as mentioned in Sch "Manning and operation" Sl item No 02.

Periodical and maintenance of under mentioned central AC plants comprising the various equipments as mentioned below including maintaining the documentation as directed for DX type central AC plant of capacity 29 TR installed at DBM 11 AC plant for maintaining Temp 74 + 5F and humidity 60 + 5%& AC plant of capacity 37 TR installed at DBM 15 AC plant for maintaining Temp 23 C + 3 C and humidity 60 + 5% in AC spaces comprising of under mentioned plants equipments and accessaries as mentioned in Sch "Manning and operation" Sl item No 03

Periodical and maintenance of under mentioned central AC plants comprising the various equipments as mentioned below including maintaining the documentation as directed for DX type central AC plant of capacity 50 TR installed at SM-39 AC plant for maintaining Temp 23 C + 3 C and humidity 60 + 5% AC plant of capacity 104TR installed at TAL (Works Shop) AC plant for maintaining Temp 23 C + 3 C and humidity 60 + 5% in AC spaces comprising of under mentioned plants equipments and accessaries as mentioned in Sch "Manning and operation" Sl item No 04

Inspection services for Sl. Item No. 5.01 to 5.04 : (a) Inspecting the plant/system and carry out preventive maintenance as per the standard practice four times in a year. (b) Checking the refrigeration system, motor and starters and ensuring healthy condition of the plant. (c) Checking the system for any leaks and rectificationm of leaks if found. (d) Tracking set of reading and reporting the healthiness of the plant and suggesting improvements if any. (e) Checking the refrigeration control system for operation and adjusting the settings. (f) Descaling the condensers for water cooled units if found necessary.(Once a year) however descaling compound will be provided on chargible basis. (g) Checking the fuinctioning of compressor and its accssories. (h) Cleaning the evaporator once a year if fiound necessary (j) Lubricating the bearings of motors, and fans when found necessary. (k) Quarterly inspection of belts adjusting the tension. (l) Checking of the microprocessor controller for its proper functioning. (m) Attending to break calls. (n) Labour involving evecuation of refrigerant during replacement of controls and replacement of compressor. (o) Carrying out-once in a year, testing of lubricant and water (chilled water system and water cooled condensing system only) samples.

Note for Sl. Item No. 5.1 to 5.04 :- The quoted rate for above plants shall be deemed to be included following:-

(a) To carry out routine, periodical, preventive (weekly, monthly, quarterly, half yearly, yearly) breakdown maintenance as per attached formats and as directed by GE & Engr-in-Charge.

(b) To attend the breakdown during day & night including holidays and putting the plant in operational condition with in the shortest period. The contractor shall keep all fast consuming spares in store to be made available by GE/Engr-in-Charge at any one of the above installation.

(c) Maintaining all the accessories such as electric panel. Interlocking wiring cables, pumps etc and all assemblies such as chillers etc and sub assemblies such as AHU, tower etc functional in any situation round the clock for the period including holidays etc.

(d) Maintaining the surrounding area of central AC plant building, cooling tower, etc neat & clean at all time. No wild vegitaion to be seen with in the surrounding of building upto 5 mtr all around

ESSENTIAL REPAIRS

Supply and fix in repairs Thermostatic expansion valve of model No HVE 11 of Make : Sporlan, Avcon or equivalent suitable for DX and chilled water type AC plant including cutting, welding, brazing, replacement of new gasket, nut bolt, washer etc all as specified and directed by Engineer-in-Charge.Make Sporlan, Danfoss, Lanco

Ditto- all as per item No 6.01 above but model No HVE 16

Ditto- all as per item No 6.01 above but model No MVE 20

Ditto- all as per item No 6.01 above but model No MVE 34

Note for sl Item No 6.01 to 6.04 :-

Before disconnecting the existing expansion valve from the system the Refrigerant has to be pumped down or taken in empty cylinder by the help of Ice or as directed by Engineer-in-Charge.

Supply and fix in repairs Differential Preassure control cut out MP-15 (Low Pressure and High Pressure common cut out) Make: Indofoss, Danfoss, Accel including interlock wiring, Brass flare nut, Brass tee, Brass union etc all as specified and directed by Engineer in charge.

Ditto- all as per item No 7.00 above, but MP-55 (Oil Pressure cut out)

Ditto- all as per item No 7.00 above, but MP-1 (Low Pressure cut out)

Ditto- all as per item No 7.00 above, but MP-5 (High Pressure cutout)

S&F in replacement V Belt of Make : Nirlong, Pix, Fenner, Ecodrive following sizes :-

(a) V Belt B-96

(b) V Belt B-104

(c) V-Belt B-110

(d) V-Belt B-112

(e) V Belt C-128

(f) V Belt C-124

Descaling of condenser by recommended chemical of make scal gun WS or equivalent cleaning agent ( Chemical should be used as per manufacturer's instructions) by soaking method, disconnecting condenser from the system by taking out nuts, bolts, studs, valves and MS/GI pipe line from both side cover, cleaning each tube with nylon brush, flushing with alkaline solution, connecting back both side cover including replacing rubber gasket 3 mm thick for the following capacities of condenser ,suitable for AC plant of capacity as indicated below complete all as specified and as directed including required quantity of chemical, all as per manufacturer's instructions and to the entire satisfaction of Engineer-in-charge. (Notes:- 1.Descaling should be done once in every three months.Each descaling will be measured seperately. 2. New nuts, bolts, washer and studs shall be measured and paid for seperately.)

(a) Up to 15 TR capacity

(b) 16 to 25 TR capacity

(c ) 26 to 50 TR capacity

(d) 51 to 90 TR capacity

Supply and replacement in repairs Strip heater finned 2 inch wide allumised steel fines of 415 volt 1.5 to 3 KW capacity as per existing

Supply and fix in repair PVC fills (full) suitable for Mihir make cooling tower

Supply and fix in repair PVC fills (half) suitable for Mihir make cooling tower

Supply and fix in repair PVC fills (Eliminator) suitable for Mihir make cooling tower

M & L for CI Strainer 'Y' type with SS 304 (perforated screen) flanged end of 100mm dia including nuts, bolts and rubber gasket for fixing of the strainer all as specified and directed by Engineer-in-charge Make:- Zoloto/ Kirloskar/ Leader.

S & F in repair Thermostat of make Ranco/ Honeywells as per existing range including control wiring to the necessary machineries etc all as specified and directed

S & F in repair Humiditistat of make Ranco/ Honeywells as per existing range including control wiring to the necessary machineries etc all as specified and directed

Supply and Fix in repairs GI tubing (ISI marked) , medium grade, 80mm bore with necessary GI pipe fittings for condenser water circulation pipes all as specified and directed (Make: Jindal/Tata/ Zenith/Swastik)

Supply and Fix in repairs GI tubing (ISI marked) , medium grade, 100mm bore with necessary GI pipe fittings for condenser water circulation pipes all as specified and directed (Make: Jindal/Tata/ Zenith/Swastik)

S&F in repairs Shaft seal including 10 AG cat part No 10 of Make : Accel suitable for SMC - 65 compressors.

Ditto- all as per item No19.00 here-in-before but suitable for SMC - 100 compressors.

Ditto- all as per item No 19.00 here-inbefore but suitable for AC 4-70 cat part No 3510102050 Kirloskar make compressor.

M&L for rewinding of induction motor 2900RPM, 3 phase, 50 Hz, 415 volt of Compressor motor and AHU Blower motor comprising of following activities for motor of following capacities complete all as directed and specified and as per manufacturer's instructions.

i) Disconnecting and removing the electric motor from installed position and loading, unloading, transporting to authorised/approved work shop.

ii) Dismantling existing burnt winding from the motor and rewinding complete with super enamelled copper winding wire of existing guage including all material such as insulated paper sleeves tape varnish etc complete for class F insulation and including shaft metalising, Bearing cover slieving, necessary replacement of cooling fan, nut-bolt etc.

iii) Loading, unloading and transporting motor & reinstalling in position and in alignment including electric connection commissioning and testing in actual working condition for 8 hours continuosly to check the performance on full load and designed RPM to the complete satisfaction of Engr-In-Charge all as specified and directed.

(a) Ditto all as per item No. 22.0 to 22.03 but, capacity 50 HP

(b) Ditto all as per item No. 22.0 to 22.03 but capacity 40 HP

(c) Ditto all as per item No. 22.0 to 22.03 but capacity 30 HP

(d) Ditto all as per item No. 22.0 to 22.03 but capacity 15 HP

(e) Ditto all as per item No. 22.0 to 22.03 but capcity 10 HP

(f) Ditto all as per item No. 22.0 to 22.03 but capcity 7.5 HP

(g) Ditto all as per item No. 22.0 to 22.03 but capcity 5 HP

(h) Ditto all as per item No. 22.0 to 22.03 but capcity 3 HP

S & F Ball bearing of bearing No - 6206 of Make : SKF or Equivalent

S & F Ball bearing of bearing No - 6208 of Make : SKF or Equivalent

S & F Ball bearing of bearing No - 6305 of Make : SKF or Equivalent

S & F Ball bearing of bearing No - 6306 of Make : SKF or Equivalent

S & F Ball bearing of bearing No - 6307 of Make : SKF or Equivalent

S & F Ball bearing of bearing No - 6308 of Make : SKF or Equivalent

Supply only Freon gas F-22 in returnable cylinder of capacity 61 Kgs of Make : Refron/Mafron/Floron.

Supply only compressor oil in sealed container manufactured by Hindustan Petroleum limited (Sheetal N - 68) or Bharat Petroleum (Freezol 201.68) or Indian Oil (Servo Freez F-57)

somnath engineering corporation

K A ELECTRIC CO

BALAJI TRADERS