1.0

SCOPE OF WORK 

The broad scope of work includes design, engineering, manufacture, testing at works, delivery and storage at site, erection, testing and commissioning of following:

a) All air-conditioning equipments for office areas in service building, administrative building, auditorium, canteen building and other PLC/Microprocessor/GIU based control room.

b) All ventilation system equipments for Service building, Administrative building, Battery rooms, central workshop and other various auxiliary buildings, etc.

2.0

BRIEF DESCRIPTION OF AIR-CONDITIONING SYSTEM 

It is proposed to provide Screw chilling machines to meet the air conditioning requirement of all the air conditioned areas of Service building and Administrative building. Further, air-conditioning requirement of Auditorium would be met with air-cooled condensing machines. Cassette type air-conditioners have been envisaged for canteen building. Other DCS/PLC based control rooms of auxiliary buildings would be air-conditioned using split (non-Ductable) air conditioners. Details of major areas to be air conditioned and the equipments proposed to be provided are elaborated in the following para. 

2.1

A/C Plant for Service building.

2.1.1

The A/C system would comprise of:

(i)   2 x 140 TR capacity screw compression type chilling machine.

(ii)    Two (02) Nos. of primary chilled water pumps.

(iii) Two (02) Nos. of variable frequency driven (VFD) Secondary chilled water pumps

(iv)   Two (02) Nos. of variable frequency driven (VFD) condenser water pumps.

(v)   Two (02) Nos. of variable frequency driven (VFD) cooling towers.

(vi)   Nine (9) nos. of air handling units (AHUs)

(vii)   Interconnecting piping, duct work, insulation, cabling, PLC/Microprocessor based control panel, instrumentation, etc. 

2.2

A/C Plant for Administrative building.

2.2.1

The A/C system would comprise of:

(i)   2 x 150 TR capacity screw compression type chilling machine.

(ii)    Two (02) Nos. of primary chilled water pumps.

(iii) Two (02) Nos. of variable frequency driven (VFD) Secondary chilled water pumps

(iv)   Two (02) Nos. of variable frequency driven (VFD) condenser water pumps.

(v)   Two (02) Nos. of variable frequency driven (VFD) cooling towers.

(vi)   Nine (9) nos. of air handling units (AHUs)

(vii)   Interconnecting piping, duct work, insulation, cabling, PLC/Microprocessor based control panel, instrumentation, etc. 

2.3

AC Plant for Auditorium.

2.3.1

The AC system would comprise of

(i) 2 x 30 TR capacity air cooled type condensing machine.

(ii) Two (02) Nos. of variable frequency driven (VFD) air handling units (AHUs)

(iii)Interconnecting piping, duct work, insulation, cabling, PLC/Microprocessor/GIU based control panel, instrumentation, etc. 

2.4

Cassette Type Split Air Conditioner have been envisaged for Canteen Building.

3.0

BRIEF DESCRIPTION OF VENTILATION SYSTEM

3.1

Supply air fans/Exhaust air fans/ Roof extractor fans with drive motors shall be provided for central workshop, MCC rooms, battery rooms, service building, administrative building , toilets, pantry, etc.