BUILDING MANAGEMENT SYSTEM
Eng. Ahmed Essa
‫شرح نظام مراقبة المبانى‬
‫‪BMS‬‬
‫هو نظام مراقبة ُمثبت في المباني التي تسيطر على وتراقب‬
‫معدات المبنى الميكانيكية والكهربائية مثل التهوية واإلضاءة‬
‫وأنظمة الطاقة وأنظمة الحريق‬
‫ويتكون من برمجيات )‪ (software‬وأجهزة)‪(hardware‬‬
BMS
WHAT IS THE BMS PROVIDE?
BMS FEATURES
‫مكونات نظام مراقبة المبانى‬
‫ماهى وظيفة نظام مراقبة المبانى ؟‬
‫مبان فالمساحات‬
‫• المراقبة والتحكم مركزيا ً في كل األجهزة المعنية في مبنى أو مجموعة‬
‫ٍ‬
‫الكبيرة وعدد الطوابق الكبير وتنوع االستعماالت في المباني الحديثة مما يجعل من الصعب‬
‫مراقبة جميع الفراغات والطوابق‪.‬‬
‫• التحكم مركزيا ً في كل األجهزة المعنية في المبنى‪ ,‬العدد الكبير للتجهيزات الكهربائية‬
‫والميكانيكية في المبنى الواحد من أجهزة تكييف وإنارة ومصاعد ومولدات كهرباء …‪ .‬جعل‬
‫من الصعب تشغيل وصيانة ومراقبة أداء هذه التجهيزات ومعرفة ما إذا كانت هذه‬
‫التجهيزات في حالة عمل أو عطل أو أنها تقوم بالوظيفة المنوطة بها بما يتناسب مع الطاقة‬
‫المصروفة على تشغيل هذه التجهيزات‪.‬‬
‫• خفض استهالك الطاقة‪,‬االرتفاع الكبير في أسعار الطاقة جعل من الضروري ضبط‬
‫تشغيل التجهيزات واإلنارة ضمن المبنى لخفض االستهالك واالستفادة القصوى من الطاقة‬
‫المستهلكة حيث تبين من خالل الدراسات أن ‪ % 40‬من الطاقة المستهلكة تذهب هدرا دون‬
‫االستفادة منها‬
The Input and Output Module Divides to :
Digital Module (DI) •
‫المدخالت الرقمية‬
‫ مثل‬0 ‫ أو‬1 ‫وغالبا تستخدم مع المالمسات التى بدون جهد أى تكون‬
Duct Smoke Detectors •
Air /Water Pressure Switch •
Diff Pressure Switch (DPS) •
Air Flow Switch (AFS) •
‫• )‪2-Analouge Module (AI‬‬
‫إشارات دخل تناظريه‬
‫ويكون مصدرها الحساسات وأجهزة القياس بحيث يتم تحويل‬
‫الكمية التناظريه الى كمية كهربية كالتالى‬
‫اشارة جهد مستمر‬
‫• )‪From (0 to 10 VDC) or (0 to 1VDC‬‬
‫• اشارة تيار‬
‫• )‪From (0 to 20 mA‬‬
‫• مقاومة جهد‬
‫• )‪From (0 to 140 Ω‬‬
Type Of Sensor •
‫أنواع الحساسات المستخدمة فى اإلشارات التناظرية‬
Type of Sensor using in (Analogue Module) •
1-Tempreture Sensor •
2-Pressure Sensor •
3-Hum/Tem Sensor •
4-Immersion Temp Sensor •
5-Diff Pressure Sensor •
6- Level Transducer •
7- Gas Detectors Transducer •
8- Current &Voltage Transducer •
‫‪3-Digital Output‬‬
‫أشارات خرج رقمية‬
‫وهى تخرج من لوحة التحكم الى ريالى للقيام بعمليات التحكم (تشغيل‪/‬إيقاف) و (غلق وفتح)‬
‫مثل محركات المراوح ومحركات المضخات ومحباس التحكم الثنائية )‬
‫)‪4-Analogue Output (A0‬‬
‫وهى التى تخرج من لوحة التحكم على هيئة اشارات كهربية تناظرية من ‪ 0‬الى ‪ 10‬فولت‬
‫• مثل‬
‫• ‪-1‬محابس التحكم‬
‫• )‪Modulating Valves (2 Way Valve Actuator‬‬
‫• ‪-2‬خوانق التحكم‬
‫• )‪Modulating Dampers (Damper Actuator‬‬
‫• ‪-3‬وحدات التحكم فى سرعة المواتير‬
‫• )‪Variable Speed Drives (VSD) , Variable Frequency Drives(VFD‬‬
‫•‬
CONTROL LEVELS FOR BMS SYSTEM
DDC COMPONENTS
DDC panel
1-WEB INTERFACE BACnet \IP to Desigo touch
panel
PXG3-W.100 - PXG3-W.200
‫وهو مثل الراوتر يقوم بتحويل نظام‬
BACnet MS/TP to BACnet IP
•
•
•
•
‫)‪2-Control Module (Main Processor‬‬
‫وهوعقل المنظومة و منه أنواع تتحمل ‪ 52‬نقطة أو ‪ 100‬نقطة‬
‫أو ‪ 200‬نقطه‬
TYPES OF AUTOMATION COMPONENTS
1-PXC-D (AUTOMATION COMPONENTS SERIES)
2-PXC-12.D ( 12 DATA POINT AND BACnet ON lontalk ) •
3- PXC-12.E.D ( 12 DATA POINT AND BACnet ON IP)
4-PXC-22.D ( 22 DATA POINT AND BACnet ON lontalk )
•
4- PXC-22.E.D ( 22 DATA POINT AND BACnet ON IP)
5-PXC-36.D ( 36 DATA POINT AND BACnet ON lontalk
•
6- PXC-36.E.D ( 36 DATA POINT AND BACnet ON IP) •
7-PXC-50.D/PXC-100.D/ PXC-200.D
AUTOMATION CONTROL STATION? •
1-PXC – NRU •
A-PXC – NRUF •
2-1-PXC – NRUD
3-Power Supply Unit (PSU) •
ACCESSORIES DESIGO TX-I\O •
4-Digital Modules •
AUTOMATION CONTROL
INPUT MODULE
TXM-1
TXM-1 – 8D
‫ نقط مراقبه‬8 ‫يتحمل‬
TXM-1 – 16D
‫ نقط مراقبه‬16 ‫يتحمل‬
•
•
•
•
•
5-Analogue Modules
‫ نقط‬8 ‫وهو يتحمل‬
(RELAY OUTPUT MODULE BISTABLE)
•
‫البروتوكول‪ :‬هو مجموعة من القواعد التي تحكم انتقال البيانات عبر الشبكة‪.‬‬
‫تجدر اإلشارة إلى أنه قبل ظهور المعالجات الدقيقة لم تكن هناك حاجة إلى بروتوكول إذ كان لشبكة‬
‫المنظومة حاسب واحد فقط مركزي يستقبل كل البيانات من حرارة ورطوبة وسريان وتيار ويقرر هو‬
‫لكل صمام أو مروحة أو مكيف أو محول أن يعمل أو يتوقف جزئيا ً أو كليا ً‪ .‬أي لم تكن هناك حاجة‬
‫لربط معالجات‪.‬‬
‫فكان البروتوكول هو الحل إلشكالية المتحكمات الرقمية‪ .‬ولكن فكر اإلنسان يعتمد تقدمه على‬
‫المحاولة والخطأ ))‪)Try and error‬‬
‫ب احتكاري‪ ،‬فلم يكن ثمة سبيل‬
‫فى الثمانينات فترة ظهور المتحكمات الرقمية المباشرة‪ ،‬ولكن بأسلو ٍ‬
‫إلى التوافق بين متحكمات شركة تحكم مع متحكمات شركة تحكم أخرى !!!!‬
‫فكانت الثمانينات عقد االحتكار للمتحكمات‬
‫بعد ذلك‪ ،‬خرجت علينا الشركة األمريكية ( )‪((Echelon‬عام ‪ 1990‬في والية كاليفورنيا‬
‫تمثل هذا الحل في بروتوكول أطلقوا عليه اسم‬
‫‪LONWORK‬‬
‫بروتوكول الباكنت تم ظهوره عام ‪1995‬‬
OPEARITING LEVELS FOR BMS SYSTEM
OPERATION AND MONITORING PXM
1-PXM-20(OPERATOR WITH BACnet ON LON) •
2-PXM-20-E (OPERATOR WITH BACnet ON IP)
‫‪Types of Controls‬‬
‫•‬
‫ماهى أنواع التحكم المستخدم فى نظام مراقبة المبانى ؟‬
‫•‬
‫‪1-Stop Mode‬‬
‫عندها يتم توقف الوحده عن العمل ومن أمثلة ذلك‬
‫• ‪Close Supply Fan and Return Fan‬‬
‫• ‪Close Water supply Valves‬‬
‫• ‪Close Dampers‬‬
‫•‬
‫‪2-Alarm Mode‬‬
‫وهو عندها يتم عرض اإلنذارات‬
‫إتساخ الفلتر لوحدات المكيفات ‪-1‬‬
‫‪Differential Pressure Sensor‬‬
‫•‬
‫حالة حريق من خالل ‪-2‬‬
‫‪Duct Smoke Detectors‬‬
‫•‬
‫إنقطاع سير المروحة من خالل ‪-3‬‬
‫‪Differential Pressure Sensor‬‬
‫•‬
‫‪-4‬الحمل الزائد‬
‫‪Overload‬‬
‫•‬
3-Fire Mode
•
‫بواسطة حساس الحريق لمجارى الهواء لوحدات المكيفات‬
(Duct Smoke Detector)
‫يتم اإلستشعار بوجود حريق فيتم اآلتى‬
‫اغالق مروح الهواء للمصدر القادم من الخارج‬
Supply fan will be close and return fan work only •
Electric Heater Will be Close •
Damper Actuator Will be Close for Fresh Air and water valve •
Exhaust Air Damper will be Work 100% •
4-General Mode
•
We will select the Switch to Auto
1-Fresh Damper &Exhaust Damper will be open
Supply and Return Fans will be Works after 1 second between both
and doing Interlock.
Measuring temperature for Supply, Return and Fresh Air
Measuring temperature for Chiller Water
•
•
•
•
•
DATA POINTS
Fire Alarm System
-Monitoring
Status
Fault and Alarm
Fire Alarm
Switch gear
-Monitoring
Status
AAlarm
BC-Trip
Transformer
-Monitoring
Oil Level
AOil Temperature Alarm
BGenerator
-Monitoring
Status
AAlarm
B-
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
ATS
-Monitoring
Status normal power
AStatus emergency power B-Fault and Alarm Reporting
Breaker 1 trip Alarm
Breaker 2 trip Alarm
Main Distribution Board (MDB)
-Monitoring
Main Breaker Status
-Fault and Alarm Reporting
Main Breaker Trip Alarm
General Distribution Board (GDB)
-Monitoring
Main Breaker Status
-Fault and Alarm Reporting
Main Breaker Trip Alarm
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Lighting and Power Distribution Board (LDB/PDB)
-Monitoring
Main Breaker Status
-Fault and Alarm Reporting
Main Breaker Trip Alarm
Low Current System
-Monitoring
Status
Fault and Alarm Reporting
Public Adress System
CCTV
PABX System
Master Clock System
Nurce Calling System
Access Control
Data System (MDF-IDF)
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Fuel Pumps
Control
Pump Start/Stop Command
Monitoring
Fuel Pump Run Status
Under Ground Fuel Tank Level
Fault and Alarm Reporting
Water Tank
Monitoring
Water Level
Air Handling Unit (AHU),Fan Coil Unit (FCU)
Control&Monitoring
1-Digital
1-Diff Press Sensor for primary filter
2- Diff Press Sensor for Bag filter
3-Electrical Heater
4-Air Flow Switch for Supply Fan
Air Flow Switch for Return Fan
Diff Press Sensor for Sand filter
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
2-Analouge
1-Duct Hum/Temp Sensor for Fresh Air
2-Valve Damper Actuator for fresh air
3- Valve Damper Actuator for exhaust air
4- Valve Damper Actuator for mixing air
5- Immersion/Temp sensor for Child Water Supply
Immersion/Temp sensor for Child Water Return
Valve Way Actuator for Return Child Water
VFD
Duct Temp Sensor for Fresh Air
Immersion/Temp sensor for Supply
•
•
•
•
•
•
•
•
•
•
•
‫خطوات تصميم نظام تحكم ومراقبة المبانى‬
‫أوال يجب تكوين جدول به جميع أنواع األنظمه فى المشروع كل دور على حده‬
FOR BASMENT, GROUND, FIRST, SECOND FLOOR…ELC •
MAY BE WE HAVE •
SUBSTATION (Switch gear,Transformer,Generator,UPS,MDB, Fire •
Fighting Pumps…ELC)
General Distribution Board (GDB) •
Electrical Panels (LDB/PDB1) or (PDB) •
MDF •
IDF •
FACP •
CCTV, Public Address, Access Control. •
ELEVATORS •
AHU •
10-CHILLER •
11-EXHUST FANS •
DATA POINT FOR CHILLER
BOOSTER WATER PUMP
AHU (FRESH TYPE)
EXHAUST FAN
PARKING EXHAUST FAN
ELECTRICAL EQUIPMENT
ELEVATOR
GENERATOR
FUEL TANK
FACP&RMU&SG
TRANSFORMER&MDB&ATS
PUMPS
WATER TANK&CAV BOX
MISCELLANEOUS EQUIPMENT
BMS PROJECT •
Sl. No
BMS SYSTEM-SCHEDULE OF ELECTRICAL ITEMS
Description
Location
BASEMENT FLOOR
Electrical Panel Boards
1
MV Switchgear
2
Transformer
3
Generator
4
5
6
7
MDB
GDB (Normal & Emergency)
LDB/PDB-BS-1 (Normal & Emergency)
Exhaust Fan panel-PDB-5 (Normal)
Basement Substation
Room
Basement Substation
Room
Basement Substation
Room
Basement Electrical Room
Basement Electrical Room
Basement Electrical Room
Basement Electrical Room
Intermediate Distribution Frame (IDF)
1
MDF
2
IDF
Basement Floor Telecom
Room
Basement Floor Telecom
Room
Lighting Control
GROUND FLOOR
Electrical Panel Boards
1
2
3
LDB/PDB-GF-1 (Normal & Emergency &UPS)
LDB/PDB-GF-2 (Normal & Emergency &UPS)
LDB/PDB-GF-3 (Normal & Emergency &UPS)
Ground Floor Electrical
Room-1
Ground Floor Electrical
Room-2
Ground Floor Electrical
Room-3
Fire Alarm Control
1
Fire Alarm Control Panel (FACP)
Lighting Control
Intermediate Distribution Frame (IDF)
Ground Floor Telecom
Room
Fire Alarm Control
1
Fire Alarm Control Panel (FACP)
Ground Floor Telecom
Room
Lighting Control
Intermediate Distribution Frame (IDF)
1
IDF-2
Ground Floor Telecom
Room
FIRST FLOOR
Electrical Panel Boards
1
2
3
LDB/PDB-FF-1 (Normal & Emergency &UPS)
LDB/PDB-FF-2 (Normal & Emergency &UPS)
LDB/PDB-FF-3 (Normal & Emergency &UPS)
First Floor Electrical
Room-1
First Floor Electrical
Room-2
First Floor Electrical
Room-3
Intermediate Distribution Frame (IDF)
1
IDF-3
2
IDF-4
First Floor Telecom Room1
First Floor Telecom Room2
Lighting Control
SECOND FLOOR
Electrical Panel Boards
1
2
3
LDB/PDB-SF-1 (Normal & Emergency &UPS)
LDB/PDB-SF-2 (Normal & Emergency &UPS)
LDB/PDB-SF-3 (Normal & Emergency &UPS)
Second Floor Electrical
Room-1
Second Floor Electrical
Room-2
Second Floor Electrical
Room-3
Intermediate Distribution Frame (IDF)
1
2
IDF-5
IDF-6
Second Floor Telecom
Room-1
Second Floor Telecom
Room-2
Elevators
1
2
MAIN ROOF
Electrical Panel Boards
Elevator-02 (MRL)
Elevator-04 (MRL)
Control Panel in Second
Floor
Control Panel in Second
Floor
3
4
Air Conditioning Panel-PDB-3 (Normal)
Elevator Panel-PDB-4 (Normal)
Main Roof Machine
Room-2
Main Roof Machine
Room-2
Elevators
1
2
3
4
5
6
VAV QTY
1
2
3
Elevator-03
Toilet and Kitchen Exhaust Fan
Car Parking Exhaust Fan
Package Unit
AHU
Main Roof Machine
Room-1
Main Roof Machine
Room-2
Main Roof
Main Roof
Main Roof
Main Roof
VAV for ground floor
VAV for first floor
VAV for second floor
48 No’s
63Nos
30Nos
Elevator-01
S#
PART NO.
DESCRIPTION
QTY
Building
1
2
DDC-RF-1
3
PDB-ELEV-1
Status\ CMD
Alarm
1
PDB-PACU-1
Status\ CMD
Alarm
1
PACU-01 to PACU-8
On/Off Status
Supply Air Duct Temperature
8
EF.Fan-01 to EF.Fan-08
Exhaust Fan Start/Stop Command
Exhaust Fan Run Status
Exhaust Fan Trip Alarm
Exhaust Fan A/O/H Status
Exhaust Fan Air Flow Status
BACnet Controller
Output Module
Input Module
Universal Module
Power Supply
Communication Module
Address Key 12
Address Key 24
Address Key 25-48
Control Panel
With Spare
8
4
5
6
7
8
9
10
11
QAM2120.040
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
QBM81-5
PXC100.D
TXM1.6R
TXM1.16D
TXM1.8U
TXS1.12F10
TXS1.EF10
TXA1.K12
TXA1.K24
TXA1.K-48
CONTROL PANEL
DDC-RF-2
1
1
1
1
8
8
8
8
8
8
8
1
4
4
2
1
1
1
0
0
1
25%
31
PDB-PACU-2
1
32
Status\ CMD
1
33
Alarm
1
34
PACU-09 to PACU-16
8
35
Status\ CMD
8
Supply Air Duct Temperature
8
37
EF.Fan-09 to EF.Fan-16
8
38
Exhaust Fan Start/Stop Command
8
39
Exhaust Fan Run Status
8
40
Exhaust Fan Trip Alarm
8
41
Exhaust Fan A/O/H Status
8
42
QBM81-5
Exhaust Fan Air Flow Status
8
43
PXC100.D
BACnet Controller
1
44
TXM1.6R
Output Module
4
45
TXM1.16D
Input Module
4
46
TXM1.8U
Universal Module
2
47
TXS1.12F10
Power Supply
1
48
TXS1.EF10
Communication Module
1
49
TXA1.K12
Address Key 12
1
50
TXA1.K24
Address Key 24
0
51
TXA1.K-48
Address Key 25-48
0
52
CONTROL PANEL
Control Panel
1
36
53
54
QAM2120.040
With Spare
25%
55
DDC-2F-1
56
IDF
3
57
Status
3
58
Alarm
3
59
Split Unit #1, Split Unit #2
2
60
Status
2
61
Alarm
2
62
LDB/PDB-SF-1 (Normal, Emergency, UPS)
3
63
Status
3
64
Alarm
3
65
Lighting Command, Alarm
3
66
LDB/PDB-SF-2 (Normal, Emergency, UPS)
3
67
Status
3
68
Alarm
3
69
Lighting Command, Alarm
3
70
LDB/PDB-SF-3 (Normal, Emergency, UPS)
3
71
Status
3
72
Alarm
3
73
Lighting Command, Alarm
3
74
ELEV-1 CP
1
75
Status
1
76
Alarm
1
77
ELEV-2 CP
1
78
Status
1
79
Alarm
1
80
ELEV-3 CP
1
81
Status
1
82
Alarm
1
83
ELEV-4 CP
1
84
Status
1
85
Alarm
1
86
PXC100.D
BACnet Controller
1
87
TXM1.6R
Output Module
2
88
TXM1.16D
Input Module
4
89
TXM1.8U
Universal Module
0
90
TXS1.12F10
Power Supply
1
91
TXS1.EF10
Communication Module
0
92
TXA1.K12
Address Key 12
1
93
TXA1.K24
Address Key 24
0
94
TXA1.K-48
Address Key 25-48
0
95
CONTROL PANEL
Control Panel
With Spare
96
1
25%
97
98
DDC-1F-1
IDF
3
100
99
Status
3
101
Alarm
3
102
Split Unit #1, Split Unit #2, Split Unit #3
3
103
Status
3
104
Alarm
3
105
LDB/PDB-FF-1 (Normal, Emergency, UPS)
3
106
Status
3
107
Alarm
3
108
Lighting Command, Alarm
3
109
LDB/PDB-FF-2 (Normal, Emergency, UPS)
3
110
Status
3
111
Alarm
3
112
Lighting Command, Alarm
3
113
LDB/PDB-FF-3 (Normal, Emergency, UPS)
3
114
Status
3
115
Alarm
3
116
Lighting Command, Alarm
3
117
PXC100.D
BACnet Controller
1
118
TXM1.6R
Output Module
2
119
TXM1.16D
Input Module
4
120
TXM1.8U
Universal Module
0
121
TXS1.12F10
Power Supply
1
122
TXS1.EF10
Communication Module
0
123
TXA1.K12
Address Key 12
1
124
TXA1.K24
Address Key 24
0
125
TXA1.K-48
Address Key 25-48
0
126
CONTROL PANEL
Control Panel
127
128
With Spare
1
25%
129
DDC-GF-1
130
IDF
3
131
Status
3
132
Alarm
3
133
Split Unit #1, Split Unit #2
2
134
Status
2
135
Alarm
2
136
LDB/PDB-GF-1 (Normal, Emergency, UPS)
3
137
Status
3
138
Alarm
3
139
Lighting Command, Alarm
5
140
LDB/PDB-GF-2 (Normal, Emergency, UPS)
3
141
Status
3
142
Alarm
3
143
Lighting Command, Alarm
5
144
LDB/PDB-GF-3 (Normal, Emergency, UPS)
3
145
Status
3
146
Alarm
3
147
Lighting Command, Alarm
5
PXC100.D
BACnet Controller
1
149
TXM1.6R
Output Module
4
150
TXM1.16D
Input Module
4
151
TXM1.8U
Universal Module
0
152
TXS1.12F10
Power Supply
1
153
TXS1.EF10
Communication Module
1
154
TXA1.K12
Address Key 12
1
155
TXA1.K24
Address Key 24
0
156
TXA1.K-48
Address Key 25-48
0
157
CONTROL PANEL
Control Panel
148
158
With Spare
1
25%
160
DDC-BF-1
161
IDF
Status
162
Alarm
163
164
Split Unit #1, Split Unit #2
Status
165
Alarm
166
167
LDB/PDB-BF-1 (Normal, Emergency)
Status
168
Alarm
169
Lighting Command, Alarm
170
171
EF/PDB-1 (Normal)
Status
172
Alarm
173
Lighting Command, Alarm
174
175
GDB-1 (Normal, Emergency, UPS)
Status
176
Alarm
177
178
179
180
Drinking Water Pipe Pressure
QBE2003-P10
Water Pressure Sensor
AQB2001
Accessory for QBE2003
1
1
1
2
2
2
2
2
2
5
1
1
1
5
3
3
3
1
1
1
MV Switch gear
3
Status
Alarm
Transformer
1
Status
Alarm
Generator
1
Status
Alarm
MDB
3
Status
Alarm
181
PXC50.D
BACnet Controller
1
182
TXM1.6R
Output Module
3
183
TXM1.16D
Input Module
2
184
TXM1.8U
Universal Module
1
185
TXS1.12F10
Power Supply
1
186
TXS1.EF10
Communication Module
0
187
TXA1.K12
Address Key 12
1
188
TXA1.K24
Address Key 24
0
189
TXA1.K-48
Address Key 25-48
0
190
CONTROL PANEL
Control Panel
1
191
192
With Spare
25%
193
DDC-VAV
194
VAV-2F
48
195
RDU341
VAV (Pressure Dependant) Room Thermostat AC 24 V
48
196
GDB161.1E
VAV Damper Actuator
48
197
SEM62.1
24V Transformer
48
CAV-2F
3
198
199
RDU341
VAV (Pressure Dependant) Room Thermostat AC 24 V
3
200
GDB161.1E
VAV Damper Actuator
3
201
SEM62.1
24V Transformer
3
202
VAV-1F
63
203
RDU341
VAV (Pressure Dependant) Room Thermostat AC 24 V
63
204
GDB161.1E
VAV Damper Actuator
63
205
SEM62.1
24V Transformer
63
CAV-1F
3
206
207
RDU341
VAV (Pressure Dependant) Room Thermostat AC 24 V
3
208
GDB161.1E
VAV Damper Actuator
3
209
SEM62.1
24V Transformer
3
VAV-GF
30
211
RDU341
VAV (Pressure Dependant) Room Thermostat AC 24 V
30
212
GDB161.1E
VAV Damper Actuator
30
213
SEM62.1
24V Transformer
30
CAV-GF
3
210
214
215
RDU341
VAV (Pressure Dependant) Room Thermostat AC 24 V
3
216
GDB161.1E
VAV Damper Actuator
3
217
SEM62.1
24V Transformer
3
218
PXC001.D
BACnet Controller
3
219
5WG11251AB22
Power supply unit DC 29 V, 640 mA
3
220
5WG11401AB13
Line/backbone coupler
0
221
CONTROL PANEL
Control Panel
3
223
BUILDING MANAGEMENT SYSTEM
PXM20
Portable Operator Unit
224
1
PXA-C1
Interface Cable for PXM20
225
1
CMM.05
Desigo Insigt software
PXG3.L
BACnet Router
1415
226
227
228
1
CONTROL PANEL
Control Panel
1
DATA POINTS
SEQUENCE OF OPERATION
PACU (Package Units)
Start / Stop Operation:
When the PACU is enabled from graphics or operator unit (PXM20) the
system gets enabled with the below sequence. Upon enabling the system
operation DDC will check the status of the time program and if the time
schedule is enabled then the DDC will enables the control sequence of related
PACU. The DDC shall monitor incase there are any existing fire alarm and fan
alarm of the PACU, before it enables the control sequence. Incase no alarms
detected the DDC shall send the command signal to the blower fan. Once
the fan status enabled then the DDC shall enable the temperature control
sequence.
When the time schedule is disabled by the time program then the DDC shall send
isolate the command of supply fan, and accordingly the temperature control
sequence is disabled, and all the controlled devices are set to off position.
•
•
•
•
•
•
•
Interlock - fan alarms: •
Upon enabling the fan command, the DDC will •
monitor the condition of fan run status. Whenever
the fan run status is not detected for any reasons while
the fan is commanded on, then it shall send the signal
to the DDC and DDC will isolate all the commands to
the default, position.
Therefore, the interlocked with respective fan •
command shall be isolated. Once the fault
rectified and alarms are cleared for the related •
then the fan start/stop command shall be initiated
automatically while the selector switch is in Auto
position
Interlock – fire alarm condition: •
When the fire alarm is triggered from the fire alarm panel while the •
fan is running in Auto mode then the DDC shall isolate the
commands to the fan and temperature-controlled devices to the off
position. Once the fire alarm is cleared from the fire alarm panel
then the auto start/stop procedure initiated after the alarms in BMS
are reset.
When the fire alarm is triggered while the fan is running in Hand •
operation then the MCC shall isolate the fan command to the off
position.
The temperature controls shall be set @ off position. Once the •
fire alarm is cleared from the fire alarm panel then the Hand
mode operation shall be initiated after alarms in BMS are reset.
BMS Override Control:
The fan command can be overridden by the BMS operator incase of emergency stop required.
Temperature control devices can also possible to override by the BMS operator. Those
commands are override by the BMS operator is shown in hand mark operation.
Temperature controls:
Upon receiving the fan status, the temperature control logic is enabled in the DDC controller
logic program. Return air temperature will be monitored by the temperature sensor installed on
the return air duct and the return air temperature shall be compared with the set point, set on the
DDC controller. In case the return air temperature is higher than the 1*C set point then the DDC
shall give a demand to enable the compressors till the return air temperature met to the set point.
As return air temperature decreases and reaching towards the set point, then DDC will
demand to disable the commands of compressors.
The comfort set point for the return air is set to 22 Deg C to maintain the comfort control. The
set point can be defined later, on the field and BMS as per the customer requirement for the
PACUs.
Temperature monitoring:
Supply air temperature will monitor the supply air temperature.
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Exhaust Fans
Normal Mode Operation:
Start/Stop of EF will be controlled by 3 position switch “Manual – Off – Auto” on MCC:
1. “Off”, Equipment will stop.
2. “Manual”, Equipment will operate manually.
3. “Auto”, Equipment will operate based on below logic.
Normal mode operation:
Fan will be used to exhaust heat from the rooms. After the fan starts, its run and airflow status are monitored.
When the fan no air flow/belt alarm input is generated through the DPS, the system will shut down. When
the no air flow input returns to normal, the system shall start as required. When the fan motor starter
generates an overload trip input signal to BMS, the system will shut down. When the overload is reset, the
system shall restart as required.
Fire Mode Operation:
In fire mode exhaust fan MCC will received fire alarm signal (volt-free contact) directly from fire alarm system relay
module.
When fire alarm signal is received from FACP, an alarm signal will be sent to BMS. If run status of any of the
exhaust fan is not received by BMS after a delay of time, then BMS will generate an alarm.
When the fire alarm signal is reset, the system get to normal i.e., exhaust fan will run in normal mode operation as
above.
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Car Park Exhaust Fans •
•
Normal Mode Operation: •
Start/Stop of EF will be controlled by 3 position switch “Manual – •
Off – Auto” on MCC:
1. “Off”, Equipment will stop. •
2. “Manual”, Equipment will operate manually. •
3. “Auto”, Equipment will operate based on below logic. •
Normal mode operation: •
Fan will be used to exhaust air at car park area. After the fan starts, •
its run and airflow status are monitored. When the fan no air
flow/belt alarm input is generated through the DPS, the system
will shut down. When the no air flow input returns to normal, the
system shall start as required. When the fan motor starter
generates an overload trip input signal to BMS, the system will
shut down. When the overload is reset, the system shall restart as
required.
Fire Mode Operation:
In fire mode exhaust fan MCC will received fire alarm signal (voltfree contact) directly from fire alarm system relay module.
When fire alarm signal is received from FACP, an alarm signal will be
sent to BMS. If run status of any of the exhaust fan is not received
by BMS after a delay of time, then BMS will generate an alarm.
When the fire alarm signal is reset, the system gets to normal i.e.,
exhaust fan will run in normal mode operation as above.
Split Units
•
•
•
•
•
•
•
DDC panel will monitor the On/Off and trip status and shall
generate alarm in case of trip status received.
Drinking Water Pipe Pressure •
DDC panel will monitor the drinking water line pressure and •
shall generate an alarm if the pressure signal gets lower than the
pre-set set point in BMS.
VAV CONTROL
Variable Air Volume damper actuator is fitted on the VAV box shall control the room
temperature as required in the room. The room thermostat will measure the room
temperature from the room thermostat and control the room air flow through VAV actuator as per
the requirement to meet the temperature to the set point.
The inlet air to each VAV is supplied from PACU’s. As the desired temperature setpoint of
PACU’s is maintained at 22 or 23 Deg C (depending on summer or winter mode), the air
supplied at the VAV inlet is always maintained to be cooler than the setpoint i.e., cooler than 22 or
23 Deg C.
SUMMER MODE:
In this scenario the PACU controls are functioning as “maximum cooling mode” i.e., the return air
temperature setpoint of PACU’s will be 22 Deg C.
If the room temperature is greater than the set point set on thermostat (Adjustable), it shall
increase the air volume in the room till the temperature is maintained, once the temperature is
satisfied then the damper shall be moved towards the minimum position.
WINTER MODE:
In this scenario the PACU controls are functioning as “maximum heating mode” i.e., the return air
temperature setpoint of PACU’s will be 23 Deg C.
If the room temperature is lower than the set point set on thermostat (Adjustable), it shall
increase the air volume in the room till the temperature is maintained, once the temperature is
satisfied then the damper shall be moved towards the minimum position.
•
•
•
•
•
•
•
•
•
•
Electrical Equipment’s Monitoring
DDC Panels will monitor the electrical panels and shall generate alarm incase of
alarm signal status received from respective panels. Electrical panels monitored
with signals monitored are as below:
1. PDB Panels: DDC panels shall monitor Status and Alarm.
2. IDF Panels: DDC panels shall monitor Status and Alarm.
3. COM (UPS): DDC panels shall monitor Status and Alarm.
4. GDB Panels: DDC panels shall monitor Status and Alarm for normal and
emergency.
5. Generator: DDC panels shall monitor Run Status and Alarm.
6. Transformer: DDC panels shall monitor On/Off Status and Alarm.
7. Synchronization Panels: DDC panels shall monitor On/Off Status and Alarm.
Lighting Control Panels
DDC panel shall monitor alarm and control the lighting circuits based on time
schedule and also by override command from graphics based on operator
requirement.
DDC shall generate an alarm incase of alarm signal received from lighting panel.
•
•
•
•
•
•
•
•
•
•
•
•
•
•
PREPARED BY
ENG.AHMED ESSA
EMAIL.AHMEDESSA2020@GMAIL.COM
WAT-0503818792