Building services presentation subang parade

Group member
1. Chia Khai Yuean
2. Chin Wei Sun
3. Jenny Wong Yen Li
4. Teo Jun Tang
5. Yap Hue Eng
6. Yap Zhi Xin

 Service tunnel
 Basement car park
 A lower ground, ground and 1st floor
Introduction

Ventilation:
No natural ventilation - sealed building.
Mechanical ventilation : 1. extraction fan (car park)
2. air-conditioning (every shops, lift, toilets)
3. extraction grilles (toilets, roof level)
Air-conditioning system: - centralized system (water chiller system)
- cooled air supplied via ducting system (outlet)
- use “open-ceiling” (inlet)
- Plant room –3 chillers, compressor, distributor
pumps,condenser pumps, chiller pumps.
- T.G.I.FRiDAY’S restaurant –package system
“Open ceiling”

Condenser pumps
Linear diffuser Cone diffuser
Multi-direction diffuser

Air Handling Unit (AHU):
- 68 units
- manually operated
- controls the air-conditioning system of 5 shops.
- Air supplied = 2˚C, returns = 23˚C.
- Thermostat - control the temperature of air supplied.
- Maintenance works for cooling coil – every 2 months.
Control panel
Thermostat

Chiller:
- 3 chillers
- 1 chiller filled with 750 tons of water (10:30a.m to 7:00 p.m.)
- 2 chillers filled with 1500 tons of water(9:30 a.m. to 9:30 p.m.).
- have been used for over 26 years and do not encounter any
overheat problems.
Chiller Chiller control penal

Cooling tower:
- 6 at roof top.
- balancing pipes - ensure the water is supplied at the same volume.
- ball valve - indicate and control the supply of water.
- hot water is pumped from the condenser to the cooling tower by using
condenser water pump.
Cooling tower

Zoning:
- single zone variable air volume. (air is supplied in same
temperature but different volume).
- MBO cinema - single zone constant air volume.

Fire Protection
Active Passive
1. portable fire extinguishers 1. Escape route: Pressurized staircase
2. Automatic extinguisher
- Carbon dioxide gas extinguishing
system
- Sprinkler system
2. Fire rated door
3. Fire hydrant 3. Fire man lift
4. Hose reel
5. Risers
6. Detectors
7. Alarm system and voice
communication system

1. Portable fire extinguishers
 Powder type
- used inside the mall
- provided one in every shop
- placed in white metal box
 Carbon dioxide type
-Used in electrical room, transformer room and water plant room
 Maintenance: once a year
 9kg

2. Automatic extinguishing system
a. Automatic Carbon dioxide system
 TNB rooms
 both smoke and heat detectors
 non-conductive properties

b. Sprinkler system
- wet sprinkler
- distance: 3m
- red bulb liquid color = 68 degree Celsius
- pressed steel storage tank = 48,000 gallons capacity
-1 duty pump, 2 standby pumps and 2 jockey pumps
-ball valves

Building services presentation subang parade

3. Fire hydrant
 8
 3- way hydrant
 Hydrant – hydrant = 68m
 hydrant - building = 8.90m
 hydrant - road = 6m

4. Hose reel
 11 sets
 wet riser tank & close range pumps
 30m long
 diameter of 8.47mm
 Canvas reel – landing valve

5. Risers
 11 Wet risers
 basement level -first floor (16.458m)
 8.534m×3.658m×2.438m tank
 16,800 gallons capacity

6. Detectors
a. Smoke
-lift lobby and inside the mall
-35m2
b. Heat
-TNB rooms
 connected to fire alarm panel and linked to fire control
room

7. Alarm detection
 Manual call points = 1.46m
 connected to fire alarm panel and fire control room
 Automatic alarm bells
 Fire switch

8. Voice communication system
 installed at every services room and lift lobbies
 Communicate to the people in the fire control room.

Passive: 1. Escape route- Pressurized staircase
 purpose made ventilation grille of independent pressurization
system
 Fire switch
 Emergency light
 riser =160mm
 tread =270mm

2. Fire rated door
 1 hour
 escape route and service rooms

3. Fire Elevator
 When there is fire, all elevators will return in sequence
directly to the designated floor, which is the LG Floor.
 Only fire elevator can be manually operated by the
firemen via the fire lift switch.

fire elevator fire lift switch

Vertical Transportation
System
1. Elevator
2. Escalator

Elevator
9 groups serving the whole shopping mall.
• 7 are connected directly to the car park.
( electric elevators )
• 2 groups within the shopping mall excluding car
park level
( hydraulic elevators )
• In one group, there are 2 elevators, with one of the
elevator designated for Bomba in terms of
emergency.

Electric elevators accessible directly to the car park

hydarulic
elevators for
interfloor traffic
only, excluding
car park

Specifications
Electric Elevator Hydraulic Elevator
Elevator Capacity 1800kg 1360kg, 26 persons
Internal Car Size 180cm*183cm 90cm*270cm
Door arrangement two - speed centre
opening
single - speed centre
opening
Round-Trip Time(RTT) 1 minute 2 minutes 15 seconds

Operation of System
Electric Elevators moves
the elevator car up and down
using traction steel ropes and
sheaves with a counterweight
to balance the load.

Operation of System
Hydraulic Elevator use
hydraulic power to
pressurise the piston at the
base of the elevator to
raise and lower the car.

Motor Room
 Located on top of the elevator shaft.
 Housed traction machines of all elevators, including the
control panel.
Traction Machine Traction Sheave

Escalators
 moving stairs used to convey people between floor
levels.
 It can be constructed in few arrangements, which are
one-way traffic and two-way traffic.
 7 criss-cross and 2 parallel

Feeder
 3 Feeder with 11kVA
switchboard section
 Circuit conductor for
power supply source
 Final branch circuit
overcurrent device.

Vacuum Circuit Breaker
 25 VCB
 interrupt the current using
vacuum

Transformers
17 transformers
5 12
HVAC system Electric supply
Step down 11kV 415V
Silica gel breather
Prevent damage as incoming
air consists of moisture & dirt.
Blue when installed & turn
purple when they absorb
moisture.

Main Switch Board (MSB)
 3 main switch board

Bar coupler
Electric Riser
Feeder pillar panel
2 feeder pillar panel
Only 1 feeder pillar
panel is used
Another 1 is use when
the existing feeder
failure
Electric riser
Distributes electric
supply
Bar coupler
Transfers electric
when the feeder is
failure.

Generator Set
 Electrical generator + engine
mounted together
 Convert mechanicalelectrical
energy
 3 generator set
 With battery
 11250kVa
 21000kVa
 Use for backup

Air Circuit Breaker (ACB)
 Main circuit breakers
 Compressed air is used to
interrupt circuit.

Distribution Panel
 Distributes power to the
consuming loads

Miniature Circuit Breaker
(MCB)
 A small trip switch

Busbar
 A copper conductor
A copper conductor
Enclosed busbar for safety
purposes

Electric distribution Main switch board
Busbar
.
Miniature
Circuit
Breaker
(MCB)
Distribution
Panel.
Load.

Cold Water Supply
 Pneumatic water pressure boosting system
 Suitable for tall buildings
 Water enter from rising main> store in tank

 System consists electrical control panel, hydro-
pneumatic pump, water storage tank.

 Pneumatic water pressure boosting system
 System pressure maintained by small air compressor and
pneumatic cylinder
 Small air compressor: contain water with pressurized air
space

 Indirect boosting from break tank
- using pneumatic cylinder
- a continuous running pump

 Break tank
- supply the system if main supply becomes
insufficient
- create pressure zones

 GI piping- rust easily
 Why choose?
- first mall in KL in the 80’s
- PVC not popular
 Make up tank- compensate water shortage period

Let’s watch a video
 http://www.youtube.com/watch?v=LJiT3VHJwZI

1. Single Zone Variable Air Volume  Multi
Zone Variable Air Volume
More energy efficiency
Recommendations- HVAC

2. Manual Controller  Automatic Controller
 The operation will be more accurate
 Energy efficiency
 Usage of manpower and related cost can be cut down
How it works
 The electronic control unit evaluates the signals from sensors to
determine the operating conditions, and controls the actuators to
move dampers and valves that control the volume, temperature and
direction of the air delivered

3. Industrial fan & UV glass
• Distribute air evenly
• Block 99% of UV radiation while transmitting the desired light

4.Return duct
• Can be used to extract warm air & recycle it through
the system for either cooling or heating purpose
• Energy efficient compared to open ceiling system

1. Fire blanket and fire extinguishing ball 
Portable Fire extinguisher
Recommendations- Fire Protection

 i. Fire blanket
 flame-resistant blanket
 extinguish small fire or protect a person from fire by wrapping the
blanket around
 made from 2 layers of woven glass fibre fabric and an inner layer
of fire retardant film

 ii. Fire extinguishing ball
 spherical shape of fire extinguisher
 1.3kg only
 is activated when it is contact with flame and it will burst to
spread dry chemical to extinguish fire when temperature is
reach 70 Degree Celsius
 Make noise when activated to alert occupants

2. Fire rated door for landing door & fire control room door
i. UBBL clause 152.2
ii. landing door shall have a FRP (fire
resistance period) of not less than half
the FRP of hoist way structure with
minimum FRP of one hour.
iii. prevent the spread of fire from landing
side into the lift shaft for a period time

 Infra-red photo of landing doors of
lift during fire test.

3.Visible Fire alarm system + Alarm bell  Alarm bell system
i. UBBL clause 242
ii. special requirements for fire alarm system
should be provided where occupants are
undesirable for audible alarm system
iii. visible alarm signal such as fire alarm strobe
lighting device

 Fire alarm strobe lighting device

4. Replace Diameter of hose reel
i. 8.47mm diameter (old)
ii. BS EN 671-1,
requirement is 19mm or 25mm

Building services presentation subang parade

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Building services presentation subang parade