VAV Boxes is a solution to control Comfort for independent zones, but this solution hiding a lot of challenges, in this presentation we share with you our solutions to ensure the ultimate comfort

1. ‫أ‬
‫نظم‬
‫ــة‬
‫اله‬
‫ـــ‬
‫المتغي‬ ‫واء‬
‫ــــــ‬
‫ر‬
VAV: Variable Air Volume

2. ‫كبيرة؟‬ ‫تكييف‬ ‫لوحدات‬ ‫المصممين‬ ‫بعض‬ ‫يلجأ‬ ‫لماذا‬
Why some Consultants recommend Big Units?

3. ‫المشكلة‬ ‫هذه‬ ‫تواجه‬ ‫هل‬
‫؟‬
Are You Facing This Problem

4. ‫المشكلة‬ ‫هذه‬ ‫تواجه‬ ‫هل‬
‫؟‬
Are You Facing This Problem

5. ‫المشكلة‬ ‫هذه‬ ‫تواجه‬ ‫هل‬
‫؟‬
Are You Facing This Problem

6. ‫المشكلة‬ ‫هذه‬ ‫تواجه‬ ‫هل‬
‫؟‬
Are You Facing This Problem

7. ‫الحل‬ ‫هذا‬ ‫قيمت‬ ‫هال‬
-
Check this Solution
VAV Boxes–Variable Air Volume-‫بالهواء‬ ‫التحكم‬ ‫صندوق‬
‫المشكلة‬ ‫هذه‬ ‫تواجه‬ ‫هل‬
‫؟‬
Are You Facing This Problem

8. ‫الحل‬
:
‫للتشغيل‬ ‫الجاهزة‬ ‫المدمجة‬ ‫الوحدة‬ ‫فى‬
Plug-in A/C Unit, ready for Kick-up

9. ‫مدمجة‬ ‫وحدة‬
,
‫مركزية‬ ‫تحكم‬ ‫منظومة‬ ‫مع‬ ‫الهواء‬ ‫صناديق‬ ‫من‬ ‫عدد‬
One Unit, many VAV Boxes & One Central Controller

11. * To be fixed at Offices & Big
Halls.
*To be fixed at higher floor in
multi story villa.
*Easier to maintain & to repair
*Less inconvenience for occu.
* More privacy for zones.
*Easier to replace in the
future.
*Efficiency Ratio: 1.6 kw per
ton in average
* Can be connected to VCD &
VAV-Boxes for better air
distribution.
*
‫القاعات‬ ‫و‬ ‫المكاتب‬ ‫في‬ ‫تركب‬
‫الكبيرة‬
.
*
‫للمن‬ ‫العلوي‬ ‫الدور‬ ‫في‬ ‫تركب‬
‫زل‬
‫الدورين‬ ‫ذات‬
*
‫اإلص‬ ‫وعند‬ ‫الصيانة‬ ‫في‬ ‫أسهل‬
‫الح‬
•
‫المكان‬ ‫لمستخدمي‬ ‫إزعاجا‬ ‫أقل‬
.
•
‫الخصوصية‬ ‫على‬ ‫محافظة‬ ‫أكثر‬
.
*
‫في‬ ‫االستبدال‬ ‫عند‬ ‫أسهل‬
‫المستقبل‬
.
•
‫كفاءة‬ ‫أكثر‬
‫ل‬
‫لتبريد‬
:
‫كيلو‬
‫ات‬
‫المعدل‬ ‫فى‬ ‫تبريد‬ ‫طن‬ ‫لكل‬
•
‫ال‬ ‫صناديق‬ ‫و‬ ‫ببوابات‬ ‫توصل‬
‫هواء‬
‫الدقيق‬ ‫التحكم‬ ‫من‬ ‫لمزيد‬
.
Features ‫المميزات‬

12. Importance
& Benefits of
VAV
• When you decide to fix A/C
Package unit or Central AHU
that located at roof while
cooling several zones, so you
need to fix VAV for each
zone in order to control
desire temperature.
• Increase comfort level, when
occupant in control compare
to actual temperature.
• Reduce energy wastage
when cooling empty zone.
‫وفوائد‬ ‫أهمية‬
‫التحكم‬ ‫منظومة‬
‫بالهواء‬
•
‫مدمجة‬ ‫وحدة‬ ‫تركيب‬ ‫تقرر‬ ‫عندما‬
‫وحدة‬ ‫أو‬
‫مركزية‬ ‫هواء‬ ‫معالجة‬
‫على‬ ‫تركب‬ ‫والتى‬
‫السطح‬
‫خدمة‬ ‫منطقة‬ ‫أو‬
‫الدكت‬ ‫يوزع‬ ‫بينما‬
‫مناطق‬ ‫عدة‬ ‫على‬ ‫الهواء‬
,
‫لذلك‬
‫يجب‬
‫ليتس‬ ‫بالهواء‬ ‫التحكم‬ ‫صندوق‬ ‫إستخدام‬
‫نى‬
‫المرغ‬ ‫الحرارة‬ ‫بدرجة‬ ‫التحكم‬ ‫للمستخدم‬
‫وبة‬
.
•
‫عل‬ ‫المستخدم‬ ‫لقدرة‬ ‫الراحة‬ ‫مستوى‬ ‫رفع‬
‫ى‬
‫الحا‬ ‫للدرجة‬ ‫معرفته‬ ‫على‬ ‫بناءا‬ ‫التحكم‬
‫لية‬
‫المطلوبة‬ ‫لتعديل‬
.
•
‫التبريد‬ ‫هدر‬ ‫تقليل‬
/
‫نغلق‬ ‫عندما‬ ‫الطاقة‬
‫تكييف‬
‫الشاغرة‬ ‫المناطق‬
.

13. ‫الداخلية‬ ‫الوحدة‬ ‫إلى‬ ‫يضخه‬ ‫و‬ ‫الماء‬ ‫يبرد‬ ‫الشيلر‬
Chiller Produce Cooling and pump chilled water to
AHU
‫ف‬ ‫ليوزعه‬ ‫الهواء‬ ‫مجارى‬ ‫عبر‬ ‫يضخه‬ ‫و‬ ‫الهواء‬ ‫تبرد‬ ‫الداخلية‬ ‫الوحدة‬
‫ى‬
‫المكاتب‬
AHU will then cool Air & distribute it through duct
‫طر‬ ‫عن‬ ‫المكاتب‬ ‫على‬ ‫الهواء‬ ‫توزيع‬ ‫يجب‬ ‫المريح‬ ‫التبريد‬ ‫لضمان‬
‫يق‬
‫خاص‬ ‫وثرموستات‬ ‫الهواء‬ ‫صناديق‬
To ensure comfort cooling for each office, must fix
VAV-Box & individual Thermostat
‫التكييف‬ ‫لمنظومة‬ ‫الرئيسية‬ ‫للمكونات‬ ‫المنطقى‬ ‫الترتيب‬
Schematic of Main Components

14. ‫الهواء‬ ‫صناديق‬ ‫عبر‬ ‫التبريد‬ ‫توزيع‬ ‫منظومة‬
VAV-Boxes air Distribution System
Supply from AHU
Main Duct
Branches
VAV
Boxes
For
Each
Zone
AHU-
Air Handling
Unit
‫للخدمة‬ ‫حاجة‬ ‫ال‬
‫العمل‬ ‫منطقة‬ ‫فى‬
No Service
Required at
working area
‫بعيدة‬ ‫الخدمة‬
‫إزعاج‬ ‫بدون‬
‫للمنتفعين‬
Service away
from
Occupants

15. ‫تطبيقي‬ ‫مثال‬
–
Practical Example
Scenario
• Plan for open office cold by
one A/C unit that have no
privacy for any area.
• After a plan that show 4-
VAVs that controls 4
different zones.
• After a plan for the same
office with 12 VAVs that give
privacy for 12-Zones.
‫سيناريو‬
•
‫بجهاز‬ ‫يبرد‬ ‫مفتوح‬ ‫مكتب‬ ‫مخطط‬
‫خصوص‬ ‫اليوجد‬ ‫و‬ ‫مركزى‬ ‫تكييف‬
‫ية‬
‫جزء‬ ‫ألي‬
.
•
‫إضافة‬ ‫يوضح‬ ‫مخطط‬ ‫ثم‬
(
4
)
‫بـ‬ ‫التحكم‬ ‫تتيح‬ ‫هواء‬ ‫صناديق‬
(
4
)
‫مختلفة‬ ‫تكييف‬ ‫مناطق‬
.
•
‫لـ‬ ‫مقسم‬ ‫للمكتب‬ ‫مخطط‬ ‫ثم‬
(
12
)
‫يتيح‬
‫طريق‬ ‫عن‬ ‫الراحة‬ ‫بدرجة‬ ‫أدق‬ ‫تحكم‬
‫تركيب‬
(
12
)
‫هواء‬ ‫صندوق‬
.

16. ‫الهواء‬ ‫توزيع‬ ‫لمجارى‬ ‫مخطط‬
–
Duct Layout
No way to adjust the cold air distribution
without VAV-Boxes
‫صنادي‬ ‫بدون‬ ‫البارد‬ ‫الهواء‬ ‫توزيع‬ ‫تنظيم‬ ‫على‬ ‫قدرة‬ ‫ال‬
‫ق‬
‫الهواء‬

17. If big space maintaining comfort by one Thermostat, result:
Acceptable with some diversity.
23’C
21’C
23’C
22’C
24’C

18. If the unit maintaining comfort in independent zones with
different loads: It will be challenging task.
23’C
24’C
22’C
23’C
22’C 20’C
Br
Br
Br

19. ‫الهواء‬ ‫توزيع‬ ‫لمجارى‬ ‫مخطط‬
–
Duct Layout
VAV-Boxes control the cooling for 4-
ziones-better than nothing
‫مناطق‬ ‫أربع‬ ‫فى‬ ‫التبريد‬ ‫تنظم‬ ‫الهواء‬ ‫صناديق‬
-
‫أفض‬
‫من‬ ‫ل‬
‫شيء‬ ‫ال‬

20. ‫الهواء‬ ‫توزيع‬ ‫لمجارى‬ ‫مخطط‬
–
Duct Layout
VAV-Boxes control the cooling for 12-zones-best
air distribution
‫فى‬ ‫التبريد‬ ‫تنظم‬ ‫الهواء‬ ‫صناديق‬
12
‫مناطق‬
-
‫أفضل‬
‫الهواء‬ ‫توزيع‬

21. Even when utilizing the benefit of VAV Boxes to maintain independent
comfort in zones with different loads: Some colder, some warmer.
24’C 20’C
24’C
23’C
24’C 23’C
Hot
Hot
Hot

23. VAV
Open
Cooling Demand
1- VAV
By-pass
Type
‫انتشارا‬ ‫األكثر‬ ‫بالهواء‬ ‫التحكم‬ ‫صندوق‬
Most common type of VAV Box

24. Problems Related to this type of VAV
‫استخدام‬ ‫من‬ ‫عامة‬ ‫مشاكل‬
‫الهواء‬ ‫صناديق‬ ‫من‬ ‫النوع‬ ‫هذا‬

25. When all SA Damper closes, Cold Air bypass: return
grill become supply, casing over cooling
24’C 20’C
Br
Br
Br

26. VAV
By-pass
Open
VAV
By-pass Open
No Cooling Demand
‫البارد‬ ‫الهواء‬ ‫سيدفق‬
(
‫نسبيا‬ ‫الثقيل‬
)
‫الراج‬ ‫فتحة‬ ‫من‬
‫ع‬
Cold air short cycle through return grill

27. Since VAV-Thermostats control zone’s setting: Central
Thermostat must control the AC Unit
22’C 24’C
22’C 24’C
23’C
22’C

28. 1) Wrong location, 2) Might off when still cooling is Required,
3) To maintain comfort, SA Temp. (off-coil) must maintained.
1)
22’C
2)
17-
22’C
3)
11-
13’C

29. ‫الرئيسية‬ ‫المكونات‬
–
Main Components

30. VAV
20% Open

31. VAV
0% Open
100% Air Pass
Pressure
Increases

32. VAV
20% Open
‫حالة‬ ‫فى‬
‫اإلغالق‬
‫الجزئي‬
Incase
of Part
Closing

33. VAV
Partially
Open,
without
VFD
Without
VFD
100% Air Pass
causing more
cooling &
Creating Noise

34. ‫الحاجة‬ ‫حسب‬ ‫التدفق‬ ‫من‬ ‫للتأكد‬
:
‫الهواء‬ ‫ضغط‬ ‫بتغير‬ ‫يتأثر‬ ‫ال‬ ‫الذى‬ ‫النوع‬ ‫يركب‬
To ensure flow as per desire:
Install Pressure Independent Type

35. VAV
20% Open
‫حالة‬ ‫فى‬
‫اإلغالق‬
‫الجزئي‬
Incase
of Part
Closing

36. VAV
20% Open
With
VFD
20% Air Pass
‫حالة‬ ‫فى‬
‫اإلغالق‬
‫الجزئي‬
Incase
of Part
Closing

37. If duct was sized according static pressure to maintain of
500Pa (2’’): What will happen when boxes start closing.
500Pa

38. When one/some VAV Boxes Closes, Pressure increases
and Fan speed must reduce, by: VFD
500Pa
600Pa

39. VAV
100% Open

40. ‫الموتور‬ ‫سرعات‬ ‫مشغل‬ ‫يقوم‬
‫طر‬ ‫عن‬ ‫المحرك‬ ‫بسرعة‬ ‫بالتحكم‬
‫يق‬
‫بناء‬ ‫الكهربائى‬ ‫التردد‬ ‫تغيير‬
‫على‬ ‫ا‬
‫الدكت‬ ‫داخل‬ ‫الراجع‬ ‫الضغط‬ ‫تغير‬
‫المشار‬ ‫الضغط‬ ‫مفتاح‬ ‫طريق‬ ‫من‬
VFD: Variable Frequency Drive
will verify the Motor speed
according to back pressure from
return air inside the Duct,
according to signal coming from
the pressure switch shown

41. When all Boxes close, Fan can’t turn off and
must: Maintain min. air flow (Standby)
500Pa

42. ‫سرعات‬ ‫مشغل‬ ‫يقوم‬
‫بسر‬ ‫بالتحكم‬ ‫الموتور‬
‫عة‬
‫تغيي‬ ‫طريق‬ ‫عن‬ ‫المحرك‬
‫ر‬
‫بناء‬ ‫الكهربائى‬ ‫التردد‬
‫ا‬
‫الرا‬ ‫الضغط‬ ‫تغير‬ ‫على‬
‫جع‬
‫الدكت‬ ‫داخل‬
VFD: Variable
Frequency Drive will
verify the Motor
speed according to
back pressure from
return air inside the
Duct

43. VAV
0% Open
Without
VFD
100% Air Pass
Pressure
Increases
‫حالة‬ ‫فى‬
‫اإلغالق‬
‫الكامل‬
Incase
of Full
Closing

44. When all Boxes close, Fan can’t turn off and
must: Maintain min. air flow (Standby)

45. To maintain pressure & min. flow: Must install a
bypass with automatic Damper
50Pa

46. VAV
0% Open
With
VFD
0% Air Pass
Pressure
Reduced
‫حالة‬ ‫فى‬
‫اإلغالق‬
‫الكامل‬
Incase
of Full
Closing

47. Damper with shaft that can be controlled Automatically
‫اآللي‬ ‫المزالق‬
By Automatic Actuator

48. ‫آليا‬ ‫الهواء‬ ‫لتوجيه‬ ‫عام‬ ‫منظر‬
General View for Automatic Damper
‫للتركيب‬ ‫جاهزة‬
–
Ready to Fix
‫سيتم‬ ‫اآللي‬ ‫المشغل‬
‫موجه‬ ‫مع‬ ‫ربطه‬
‫ليفت‬ ‫الحالى‬ ‫الهواء‬
‫ح‬
‫و‬ ‫اإلغالق‬ ‫عند‬
‫الحاجة‬ ‫عند‬ ‫يغلق‬
‫للتكييف‬
Actuator to be
inter- Locked
with existing
VAV to allow
by-pass air to
go to return

50. ‫التب‬ ‫توزيع‬ ‫منظومة‬
‫ريد‬
‫الهواء‬ ‫صناديق‬ ‫عبر‬
‫يمثل‬ ‫المدمجة‬ ‫للوحدة‬
‫أكبر‬ ‫تحديا‬
VAV-
Boxes air
Distribution PKG
Unit is more
Challenging

51. ‫منظومة‬
‫التحكم‬
Control
System
‫الراحة‬
Comfort
‫جودة‬
IAQ
‫الهواء‬
‫تقليل‬
‫هدر‬
‫الطاقة‬
Energy
Saving
‫التوازن‬ ‫إحـــداث‬
‫الحاجات‬ ‫بين‬
‫األساسية‬
TO BALANCE
THE ULTIMATE
NEEDS
‫التـــــــــــــحدى‬
Challenge
CO2

52. ‫التكييف‬ ‫منظومة‬
‫بدون‬ ‫المدمجة‬
‫مناطقى‬ ‫تحكم‬
PKG unit
without zone
controllers in
PKG Unit

53. standard PKG
Unit
with thermostat
Supply
Return
Standard Thermostat:
Install with-in Zone, if
contact closes, then
Compressor & CFM will
work to provide cooling.

54. When Zone is large or splited to
rooms: we need to average the
heat load carried by return air
Supply
Return

56. Types of:
Temperature Sensors
DI-Open Control Loop:
Install with-in Zone or at
return duct, if contact close
the DDC can detect Temp. and
Open Floating Control Valve
Digital
DI
Input
Analog
AI
Input
DO-Close Control Loop:
Install with-in Zone or at return
duct, if Signal Increase due to high
temp., the DDC can increase
opening % of Modulating Control
Valve
Switch
Transducer

57. Digital
DI
Input
Analog
AI
Input
Adding more inputs/outputs required a
controller in place of thermostat

58. ‫التحكم‬ ‫للوحة‬ ‫منظر‬
General view of control panel
Dual Temp.
& Humidity
Sensor
Remote
Temp.
Sensors

59. The need increases
when Fresh Air
added
Supply
Return
Fresh Air
Return
Mixin
g
Box

60. The need will
be for 3-Temp.
sensors
Supply
Return
Fresh Air
Return
Mixin
g
Box
1
2’
C
Return Temp. Sensor
indicate zone temp.,
while Sensor at Mixing
Box indicate the real
heat load we required
to cool, last is Supply
Sensor inform the
condition of changing
tool.

61. Humidity Sensor
DI-Open Control Loop:
Install with-in Zone or at
return duct, if contact close
the DDC can detect RH% and
close Fresh Air Damper
Digital
DI
Input
Analog
AI
Input
DO-Close Control Loop:
Install with-in Zone or at
return duct, if Signal Increase
due to high RH%, the DDC can
decrease opening % of
Modulating FA-Damper.
Switch
Transducer

62. Typical
PKG/F-3T-H-
Supply
Return
Fresh Air
Return
Mixing
Box
1
2’
C
Humidity Sensor in
the Return Air help
prevent increase in
humidity level, by
reducing Fresh Air
and decrease Motor
Speed.
Finally, send Alert

63. Dual ambient
temperature &
humidity Sensor Setting & Actual Situation

64. 1
2’
C

65. DPS-Differential Pressure
Switch across air filters to
alert occupant to wash
before ice form.

66. Typical
PKG/F-3T-H
Supply
Return
Fresh Air
Return
Mixin
g
Box
1
2’
C
DPS-Differential Pressure
Switch will indicate if filter
need cleaning or belt is
broken for indoor motor

67. Typical
PKG/F-3T-H
Supply
Return
Fresh Air
Return
Mixin
g
Box
1
2’
C
DPS-Differential Pressure
Transducer will indicate if
Negative Pressure happen
and signal for more fresh air.

68. DPS-Differential Pressure
DI-Open Control Loop:
Install across FAN or Filter, if
contact close the DDC can
detect either fan stop working
or filter is clogged
Digital
DI
Input
Analog
AI
Input
DO-Close Control Loop:
Install after FAN in VAV
System, if Signal Increase due
to Pressure increase after
some VAV close, the DDC can
reduce VFD Speed
Switch
Transducer

69. Typical
PKG/F-3T-H-
Supply
Return
Fresh Air
Return
Mixin
g
Box
1
2’
C
CO2 Sensor/Transducer will
indicate actual need to re-fresh
indoor air only, and save cooling
if level is acceptable.

70. CO2 Sensor
DI-Open Control Loop:
Install with-in Zone or at
return duct, if contact close
the DDC can detect IAQ and
Open Fresh Air Damper
Digital
DI
Input
Analog
AI
Input
DO-Close Control Loop:
Install with-in Zone or at
return duct, if Signal Increase
due to PPM concentration
increases, the DDC can
increase VFD Speed of FA-FAN
Switch
Transducer

71. Typical
PKG/F-3T-H
Supply
Return
Fresh Air
Return
Mixin
g
Box
1
2’
C
Install with-in Zone, if contact
open, the DDC can detect
Unoccupied Mode and activity
Energy Saving Pre-Sited Temp.

72. Smoke Sensor
DI-Open Control Loop:
Install with-in Zone or at
return duct, if contact close
the DDC can detect Smoke and
Close Fire Fighting Damper
(Less than 20 sec)
Switch
Smoke Sensor in the return
duct is a must by Civil Defense
Regulations, it will connected
to fire damper that must close
within 20 sec. max.
Digital
DI
Input

73. Occupancy Sensor
DI-Open Control Loop:
Install with-in Zone, if contact
open, the DDC can detect
Unoccupied Mode and activity
Energy Saving Pre-Sited Temp.
Switch
Occupancy Sensor can be utilize to
maximize Energy Saving, by:
•
Activate Per Sit Temp.
•
Reduce Air Flow to minimum.
•
Close Fresh Air Damper.
Digital
DI
Input

74. Typical
PKG/F-3T-H
Supply
Return
Fresh Air
Return
Mixin
g
Box
1
2’
C

75. SPICIAL
PKG/F-S-3T-H-
Supply
Return
Fresh Air
Return
Mixin
g
Box
1
2’
C

76. DPT-Dif. Pressure
Transducer to
open the SA-
Bypass when
connected VAV
Boxes closes

77. Variable Air Volume (VAV) system is an all air system which can satisfy the individual cooling requirements
of multiple thermal zones.
This is achieved by supplying air at a constant temperature from central plant to one or more VAV terminal
units in each zone and adjusting the amount of supply air to meet required cooling loads.
The primary benefit of VAV over constant volume systems (CV) is its ability to simultaneously provide the required
level of cooling to any number of zones within a building.

79. SA-Supply Air
SA
Bypass
Air
RA
Return Air
Bypass Air
Bypass Air
When VAV Box Closes internal press. Increases,
so bypass will open

80. SPICIAL
PKG/F-S-3T-H-
Supply
Fresh Air
Mixing
Box
1
2’
C
RA
Return
Return
MA
‫هواء‬
‫مخلوط‬
Mixed
Air
SA
Cols
Supply
Air
Bypass
When VAV
Box Close
1ST Compressor
Off @ 17’C
2nd Off @ 11’C
Adjustable

81. Anther
example for
the SA-
bypass
RA
Bypas
s
Air

82. Main Control Components-DX-‫التحكم‬ ‫لمنظومة‬ ‫الرئيسية‬ ‫المكونات‬
Temp. Sensor: Duct Return Type
RH% Sensor: Duct Return Type
Enthalpy Sensor: Duct Return Type
Actuator: Opening of Air Dampers
Pressure Switch-PDS: Filter/Motor
Condition
Press. Transducer-PDT: Positive P.
VFD: Variable Frequency Drive
Damper: Duct Type - Motorized
Touch Pad: Maximum Limit
Main Controller: Connect and control
all above sensor, switches and
actuators (Demand Response)
‫حرارة‬ ‫مجس‬
:
‫الهواء‬ ‫مجارى‬ ‫فى‬ ‫يركب‬
‫رطوبة‬ ‫مجس‬
:
‫الهواء‬ ‫مجارى‬ ‫فى‬ ‫يركب‬
‫الكاملةة‬ ‫الحرارة‬ ‫مجس‬
:
‫الهواء‬ ‫مجارى‬
‫الهواء‬ ‫مزالق‬ ‫بوابات‬ ‫لفتح‬ ‫محرك‬
‫الضغط‬ ‫فرق‬ ‫مفتاح‬
:
‫الفلتر‬ ‫حالة‬
/
‫المحرك‬
‫الضغط‬ ‫مجس‬
:
‫الموجب‬ ‫الضغط‬ ‫لمراقبة‬
‫المتردد‬ ‫التيار‬ ‫مشغل‬
:
‫الهواء‬ ‫بكمية‬ ‫للتجكم‬
‫الهواء‬ ‫مزالق‬
:
‫بمحرك‬ ‫الهواء‬ ‫مجارى‬ ‫داخل‬
‫التحكم‬ ‫جهاز‬
:
‫الوظائف‬ ‫ألقصى‬ ‫مدخل‬
‫الرئيسي‬ ‫المتحكم‬
:
‫ا‬ ‫و‬ ‫المجسات‬ ‫بكافة‬ ‫مربوط‬
‫لمفاتيح‬
‫قدر‬ ‫على‬ ‫ليعمل‬ ‫يبرمج‬ ‫و‬ ‫التشغيل‬ ‫محركات‬ ‫و‬
‫المتغيرة‬ ‫الحاجة‬
.
A
D
1
2
’

83. Top (Level 3)
Comfort, ES
& Productivity.
Middle (Level 2)
Monitor, Control
and Field Services
Base (Level 1)
Data: Power, CH.
W. and Air
Performance
centric
Facilities
centric
‫بالمبانى‬ ‫الذكي‬ ‫التحكم‬ ‫لمنظومة‬ ‫الفعالة‬ ‫الإمكانيات‬
The Capabilities
Of effective Building Management System
‫الفعالة‬ ‫الخدمات‬
Effective Services
Facilities Monitored & Controlled by BMS-‫بالمنظومة‬ ‫وتحكم‬ ‫مراقبة‬ ‫خدمات‬
Smart mosque enable by smart e.BMS
eBMS

84. Alarms
WE DESIGN ALARM LIST TO ALERT OCCUPANT,
WHILE SYSTEM ACT AS PER PLAN-B

85. SA-SUPPLY AIR TEMP.
SENSOR TO MONITOR UNIT
PERFORMANCE, ALSO TO
AVOID OVER COOLING

86. Best quality
compressors &
motors

87. ‫دقة‬
‫بالتفاصي‬
‫ل‬
Brilliant
details

88. ‫الهواء‬ ‫تجديد‬ ‫مدخل‬ ‫تركيب‬ ‫بعد‬ ‫عام‬ ‫منظر‬
‫والدكت‬
‫االلتفا‬
‫في‬
General view for Fresh air & bypass
‫البوابة‬ ‫إلغالق‬ ‫آلي‬ ‫محرك‬
Auto Actuator to close bypass
‫إغال‬ ‫عند‬ ‫الهواء‬ ‫لتدفق‬ ‫التوازن‬ ‫إحداث‬ ‫على‬ ‫ليعمل‬ ‫التفافي‬ ‫دكت‬
‫ق‬
‫الهواء‬ ‫صناديق‬
Bypass Duct to balance air flow when VAV Box Closes

89. ‫الهواء‬ ‫تجديد‬ ‫مدخل‬ ‫تركيب‬ ‫بعد‬ ‫عام‬ ‫منظر‬
‫والدكت‬
‫االلتفا‬
‫في‬
General view for Fresh air & bypass
‫الهواء‬ ‫إلغالق‬ ‫آلي‬ ‫مزالق‬
Auto Closing
Damper (Enthalpy)
‫تثب‬ ‫صندوق‬
‫يت‬
‫الهواء‬ ‫كمية‬
Constant
Flow
Damper
2
‫لل‬ ‫قابل‬ ‫فلتر‬ ‫ألمنيوم‬ ‫إنش‬
‫تنظيف‬
2 inch Aluminum
washable Filter
‫من‬ ‫الهواء‬ ‫مصفي‬
‫الك‬ ‫التراب‬ ‫حبيبات‬
‫بيرة‬
Sand Trap Louver
‫التغييرات‬ ‫هذه‬ ‫كل‬
‫التكييف‬ ‫جهاز‬ ‫ألن‬
‫من‬ ‫مجهز‬ ‫غير‬
‫المصنع‬
All this
modification
because unit
was not ready

90. ‫الهواء‬ ‫تجديد‬ ‫مدخل‬ ‫تركيب‬ ‫بعد‬ ‫عام‬ ‫منظر‬
‫والدكت‬
‫االلتفا‬
‫في‬
General view for Fresh air & bypass
‫التغيير‬ ‫هذه‬ ‫كل‬ ‫لتجنب‬
‫ات‬
‫جهاز‬ ‫تجهيز‬ ‫فيمكن‬
‫المصنع‬ ‫من‬ ‫التكييف‬
,
‫هو‬ ‫بكمية‬ ‫اآللي‬ ‫للتحكم‬
‫اء‬
‫الحاج‬ ‫قدر‬ ‫على‬ ‫التجديد‬
‫ة‬
‫ضمان‬ ‫مع‬ ‫الحاجة‬ ‫وعند‬
‫الكفوءة‬ ‫المعالجة‬
.
To avoid all these
modification, unit
can be furnished
with FA Economizer
to modulate as per
actual demand &
allow only treated air

91. ‫آخر‬ ‫عرض‬ ‫فى‬ ‫أكثر‬ ‫معلومات‬
More Details in anther
Presentation
‫المحتوى‬ ‫مجسات‬
‫الحراري‬
–
Enthalpy Sensors

92. ‫المدمجة‬ ‫التكييف‬ ‫وحدات‬ ‫تركيب‬ ‫عند‬ ‫خاصة‬ ‫اعتبارات‬
Considerations when installing Package A/C Units

93. Green Regulations-Performance-‫الخضراء‬ ‫القوانين‬
KSA

94. International Green regulations as per: ASHRAE
American society of heating, refrigeration, air Conditioning engineers

95. KSA Green regulations/per: SASO

96. Kuwait Green regulations as per:
mew-ministry of electricity & water

97. UAE Green regulations as per:
ESMA & Estidama

98. Minimum Efficiency Requirements for Unitary Air
Conditioners and Condensing Units-by Dubai municipality
Equipment Type
Size
Category
Heating
SectionType
Subcategoryor
RatingCondition
Minimum
Efficiency
(T1)
Minimum
Efficiency
(T3)
Test
Procedure
* Split Ducted
9.5 6.6
* Split Décor. EER EER
* Package
* Cassette
9.5 6.6
* FAHU-DX EER EER
8 5.7
* Window Type EER EER
9.2 6.4
EER EER
Example
Equipment
Type
Refference
A
B
C_
Through-the-wall, air cooled
<=30,000
Bth/h
All Single Package
Small-ducthigh-velocity air cooled
<65,000
Bth/h
All SplitSystem
Single Package
T3-
ISO5151
Minimum Efficiency Requirements for Unitary Air Conditioners and Condensing Units
Air Conditioners, air cooled
<65,000
Btu/h
All
SpiltSystem
T1-ARI
210/240

99. ‫الفوائد‬ ‫ملخص‬

100. Sys. Benefits – ‫المنظومة‬ ‫فوائد‬
Design
• Compact Design that
minimize coordination
mistakes.
• Compact product that utilize
limited space.
• Guarantee Cooling
performance as per design.
• Reduce energy wastage by
response as per actual
demand.
‫التصميم‬
•
‫أخطاء‬ ‫من‬ ‫يقلل‬ ‫مدمج‬ ‫تصميم‬
‫المخت‬ ‫الخدمات‬ ‫بين‬ ‫التنسيق‬
‫لفة‬
.
•
‫م‬ ‫اإلستفادة‬ ‫يتيح‬ ‫مدمج‬ ‫منتج‬
‫ن‬
‫المحدودة‬ ‫المساحات‬
.
•
‫هو‬ ‫كما‬ ‫التبريد‬ ‫فعالية‬ ‫ضمان‬
‫التصميم‬ ‫فى‬ ‫محسوب‬
.
•
‫للتحك‬ ‫نظرا‬ ‫الطاقة‬ ‫هدر‬ ‫تقليل‬
‫م‬
‫و‬ ‫الواقعية‬ ‫للحاجة‬ ‫المطابق‬
‫اآلنية‬
.

101. Sys. Benefits – ‫المنظومة‬ ‫فوائد‬
Operation
• Easy to install System
by labor.
• Easy to commission
by engg. team.
• Easy to operate by
occupant.
• Easy to maintain by
technicians.
‫التشــــــغيل‬
•
‫من‬ ‫المنظومة‬ ‫تركيب‬ ‫سهولة‬
‫العاديين‬ ‫العمال‬ ‫قبل‬
.
•
‫التضب‬ ‫و‬ ‫التشغيل‬ ‫سهولة‬
‫يط‬
‫الهندسي‬ ‫الفريق‬ ‫أيدى‬ ‫على‬
.
•
‫التبري‬ ‫و‬ ‫التشغيل‬ ‫سهولة‬
‫د‬
‫شاغل‬ ‫قبل‬ ‫من‬ ‫الطلب‬ ‫حسب‬
‫المكان‬
.
•
‫قبل‬ ‫من‬ ‫الصيانة‬ ‫سهولة‬
‫الفنيين‬
.

102. Sys. Benefits – ‫المنظومة‬ ‫فوائد‬
The ultimate
This unit has been design to
ensure effective comfort for
big special used areas,
precious control that
perform per actual demand
when no dedicated in
charge, also the Alert System
reduce response time and
prevent more break downs
and eliminate waste.
‫أهمية‬ ‫األكثر‬
‫الت‬ ‫لتوفير‬ ‫الوحدة‬ ‫هذه‬ ‫تصميم‬ ‫تم‬
‫كييف‬
‫لألماك‬ ‫الكبيرة‬ ‫للمساحات‬ ‫الفعال‬
‫ن‬
‫االستعمال‬ ‫المتخصصة‬
,
‫فالتحكم‬
‫هدر‬ ‫بدون‬ ‫و‬ ‫الحاجة‬ ‫قدر‬ ‫على‬ ‫الدقيق‬
‫فيه‬ ‫ليس‬ ‫التي‬ ‫األماكن‬ ‫في‬ ‫خاصة‬
‫ا‬
‫للمتابعة‬ ‫محدد‬ ‫مسؤول‬
,
‫أن‬ ‫كما‬
‫تربيطات‬
‫يمكن‬ ‫المتقدمة‬ ‫التحكم‬
‫ها‬
‫تضخ‬ ‫وتقليل‬ ‫التلبية‬ ‫تسريع‬
‫األعطال‬ ‫م‬
‫المستهلكة‬ ‫الطاقة‬ ‫هدر‬ ‫ومنع‬
.

103. ‫المكتوب‬ ‫و‬ ‫المرسوم‬ ‫الشعارين‬ ‫يحمل‬ ‫ستيكر‬
Sticker with logo & slogan

104. ‫مشاكل‬ ‫لحل‬ ‫محدود‬ ‫إنتاج‬
‫فى‬ ‫الحرارة‬ ‫فرق‬ ‫إنخفاض‬
‫المناطق‬ ‫تبريد‬ ‫مشاريع‬
Limited production as
solution for low
delta-T at DC-Projects

105. P- E C O- 2 4 D- H- A M- V F- P I
C: FCU - A: AHU – F: FAHU – P: Package
ECO: Economical Dynamically Balanced Unit
# # X 100 = Max. Air Flow in cfm
S: Standard – D: Dynamically Balance
H: High-M: Medium – L: low
Static
AM: AC - DM: DC – EM: EC
Variable Speed Motor
CF: Constant
VF: Variable Flow
PI or GR or
VAV

106. ‫السعر‬ ‫تخفيض‬ ‫عظيمةتضمن‬ ‫إضافية‬ ‫فوائد‬
Anther great benefits-ensure price reduction
‫المكيف‬ ‫مصنع‬
FCU
1
V
OH-Factory
‫الوصالت‬
Fittings
2
V
OH-Dampers
‫التحكم‬
Control
3
V
OH-Controller
‫التركيب‬
Installation
4
OH-Contractor
‫التقليدية‬ ‫الطريقة‬ ‫فى‬
:
‫الكفالة؟‬ ‫ويحفظ‬ ‫األدء‬ ‫كفاءة‬ ‫سيضمن‬ ‫من‬
In normal case: Who will ensure performance & guarantee?
V
OH-Factory
Damper & Control OH-Contractor
‫التشغيل‬
Commission
5
OH-TAB
V
OH-TAB

107. ‫السعر‬ ‫تخفيض‬ ‫عظيمةتضمن‬ ‫إضافية‬ ‫فوائد‬
Anther great benefits-ensure price reduction
‫المكيف‬ ‫مصنع‬
FCU
1
V
2,000
‫الوصالت‬
Fittings
2
V
100
‫التحكم‬
Control
3
V
400
‫التركيب‬
Installation
4
1,000
‫حوالى‬ ‫المواد‬ ‫تكلفة‬ ‫فى‬ ‫توفير‬
:
30
%
Saving in material cost around 30%
V
2,000
2,100 2,500 500
‫التشغيل‬
Commission
5
100
V
50

108. ‫التحكم‬
‫الهواء‬ ‫توزيع‬ ‫بصندوق‬
Vav Box Control

109. ‫المدم‬ ‫التكييف‬ ‫منظومة‬
‫جة‬
‫مناطقى‬ ‫تحكم‬ ‫مع‬
PKG unit with
zone
controllers in PKG Unit

110. ‫الهواء‬ ‫صناديق‬
-
VAV Types
(Variable Air Volume Box)
VAV Damper interlock with VFD
(Variable Frequency Drive).
VAV Box with By-
pass Return Damper
VAV Damper interlock with
Central Return Damper.

111. ‫ا‬ ‫الهواء‬ ‫ترجع‬ ‫والتى‬ ‫األفضل‬ ‫النوعية‬ ‫من‬ ‫المنظم‬ ‫يكن‬ ‫لم‬ ‫لما‬
‫لزائد‬
Since Existing VAV doesn’t have By-pass for Return
Must add a By-pass
VAV with Built-in By-pass

112. HOW TO CALL US ?
‫بنا‬ ‫تتصل‬ ‫كيف‬
To benefit from our Services:
• Consultancies.
• Corrections.
Call:
Eng. Juma Yousef
‫من‬ ‫لإلستفـــــــــــادة‬
‫خدمــــاتنا‬
:
•
‫اإلستشارية‬
.
•
‫التصحيحية‬
.
‫اتصل‬
:
‫المهندس‬
/
‫يوسف‬ ‫جمعة‬
Mobile: +962-7-9074-6811 jumayjuma@gmail.com