This document outlines the key electrical, HVAC, firefighting, water, and sanitation services for a commercial building located in Centra Mall. It describes the components and specifications of the transformer room, voltage control room, LT room, isolator room, IT room, chiller plant room, air handling units, pump room, fire exits and hydrants, water tanks, and drainage system. The building services were designed and installed by Spectral Service Consultants to meet the needs of the 36,000 square foot commercial building.

1. SERVICES IN A COMMERCIAL
BUILDING
BUILDING TYPE : MALL
LOCATION : CENTRA MALL
ARCHITECT : MORPHOGENISIS
SERVICE CONSULTANTS : SPECTRAL SERVICE
CONSULTANTS
By : Manav

2. ELECTRICAL SERVICES
• COMPONENTS:
 Transformer room
 Voltage Control Room
 LT Room
 MDB
 Isolator room
 IT Room

3. TRANSFORMER ROOM
▫ Room size: 20’X15’
▫ Ceiling height 12’
▫ Purpose to regulate the
incoming voltage by
amplifying to an optimum
level.

4. VOLTAGE CONTROL ROOM
• For 11,000 volts.
▫ Machine size: 6’X6’
▫ Room size: 17’X12’
▫ Min setback of 3’ from
machine
▫ Ceiling height 12’
▫ Purpose to regulate the
incoming voltage to an
optimum level.

5. Wiring fixed at the ceiling by
suspending a metal cage for heavy
gauge wires.
Light gauge wires fixed with ceiling
directly.

6. • LT room is the distribution room of size 15’X30’
• Isolator room is a room installed with an Air
Circuit Breaker Machine which act as a MCB in
case of voltage fluctuations.
• Every machine has a setback of minimum 3’
from the walls and 4’ from adjoining machines.
• Every room is installed with shutters instead of
doors.
• IT room keeps a central control room size 15’by
12’

7. HVAC SERVICES
• COMPONENTS:
 Chiller plant room
 Air Handling Unit at each floor
 Pump room

8. CHILLER PLANT ROOM
• 200 TIA chiller plant for a
floor area of 36000 sq feet.
• 3 chiller plants in total
• TIA is the tonnage capacity
• It is used to cool the water and
act as a condenser.
• Abutment provided at the base
of the machines of 8-12”
• An electric console provided in
the room for separate control
of the chiller plant

9. Drain of 15”
width by
36” depth
under the
chiller
plants
Drains of 15’’width by 10 ‘’ depth
under the pump
Pipes installed
from the
pumps to the
AHU.
Motor Pumps- 4nos.

10. AHU
▫ Room size: 10’X15’
▫ Min setback of 3’ from
machine
▫ Ceiling height 12’
▫ Purpose is to act as a
compressor of the cooling
system.
▫ Receives the cool water from
the chiller plant and
condenses the air.

11. PUMP ROOM
• Handles the water supply to
the chiller plant, fire fighting
pipes and the other services.
• Room size: 30’X15’
• Collects the water from the
mains and convert it into
usable form
• Separate control unit
• Tanks installed-
▫ Domestic Water Tank-75KL
▫ Raw Water Tank-75 KL
▫ Fire water Tank-100Kl (2nos)

12. • Room size: 30’X15’
• All wire installations are made
on the steel cages.
• Electric panel monitoring the
voltage.
• Motors installed-
▫ Sprinkler Motor-caters to the
water sprinkler pipes
▫ Hydrant Motor-caters to the
fir hydrants installed at each
floor
▫ Jockey Motor-caters to the
domestic supply

13. FIRE FIGHTING
• For the machine rooms there
are separate co2 cylinders
attached to pipes.
• Smoke detectors installed
• Heat (fire) detectors installed

14. • Fire exit leading to the fire
staircase opens directly to the
main exit.
▫ Tread : 12’’
▫ Riser : 4’’
▫ Width : 5’
• FHC installed on each floor.
• The internal staircase also
withstand the norms of fire
fighting for staircases.

15. WATER SUPPLY
• From the pump room raw
water is converter into
domestic water by filtration
tanks.
• Using jockey motor water is
sent to the upper floors

16. SANITATION
• Drains at the basement levels
collect the waste water.
• From pump room all the waste
water is sent to the main sewer
line by motors.
• These pumps have a separate
control unit where as the other
motors have a single console.