HCMC UNIVERSITY OF TECHNOLOGY AND EDUCATION
FACULTY OF INTERNATIONAL EDUCATION

GRADUATION PROJECT
APPLICATION OF BMS TO CONTROL AND
MONITOR CHILLER

Instructor:

Ph.D Le Trong Nghia

Students:

Ngo Nhan Tri

Student ID: 19142108

Nguyen Hoang Tri Nguyen

Student ID: 20142237

Major:

ELECTRICAL AND ELECTRONIC ENGINEERING
TECHNOLOGY

Ho Chi Minh City, January 2025

THE SOCIALIST REPUBLIC OF
VIETNAM
Independence – Freedom– Happiness


Students name:

GRADUATION PROJECT ASSIGNMENT
Ngo Nhan Tri
MSSV: 19142108

Students name:

Nguyen Hoang Tri Nguyen

Major:

Electrical and Electronic Engineering Technology

Instructor:

Ph.D Le Trong Nghia

Date of receiving project:

06/09/2024

MSSV: 20142237

Date of submission project:

06/01/2025

1. Project’s name: Application of BMS to control and monitor chiller
2. Initial materials provided by supervisor: ___________________________________
3. Mission and content:
• Introduce the equipment used in the model
• Design the model hardware
• Design the operating monitoring interface from the software and website
• Operate the BMS system to monitor and control the chiller and evaluate the results
4. Final product
• BMS model to control and monitor the chiller system
• Website to control and monitor the chiller system

CHAIR OF THE PROGRAM
(Sign with full name)

SUPERVISOR
(Sign with full name)

CONTENT
CONTENT .................................................................................................................. 1
TABLE AND IMAGE CATEGORIES ........................................................................ 4
IMAGE CATEGORIES ..............................................................................................4
TABLE CATEGORIES ...............................................................................................7
LIST OF ABBREVIATIONS .........................................................................................8
ABSTRACT ................................................................................................................ 1
ACKNOWLEDGEMENT ........................................................................................... 2
CHAPTER 1: INTRODUCTION ................................................................................ 3
1.1. PROBLEM OVERVIEW .....................................................................................3
1.2. REASONS FOR CHOOSING THE TOPIC .....................................................
...

...


• Analog outputs, number

4

• Analog output, signal

DC 0…10 V

• Degree of protection

IP20

77

➢

Pinout DDC DXR2.E18

Figure B.2: Pinout DDC DXR2.E18
Table B.1: Pinout DDC DXR2.E18
Terminal

Symbol Deion

31...36 inputs

Channel

2 x RJ45 interface for 2-port

1, 2 Ethernet
11, 12 KNX

Module

Ethernet switch
+, -

KNX connection

D1

Digital input

1

1

X1, X2

Universal input

1

5, 6

⏊

System zero

V~

Field supply AC 24 V for

11

1...6

21

1, 2

31

1

active sensors
USB interface

USB
51...52 power 24
V~
61...69 Triacs

V~

Power SELV / PELV AC 24
V

⏊

System zero

Y1...Y6 Switching output AC 24 V
⏊

System zero

Y10,

Positioning output DC 0...10

81...84 analog

Y20

V

outputs

⏊

System zero

V~

Field supply AC 24 V

P1+

Connected to the higher

ΔP differential
pressure detector

pressure

78

P1-

Connected to the lower

31

pressure
Service

SVC

Service button

Display

RUN

Operation LED

Appendix C: Pressure sensor ES-P300

Figure C.1: Pressor sensor ES-P300
➢ Specifications:
• Power: 24VDC
• Protection level: IP65
• Working temperature: -20˚C ÷ 85˚C
• External thread size: G1/4
• Input signal: ≤ 10 Bar
• Output signal: 4-20mA
➢ Wiring diagram:

Figure C.2: Wiring diagram ES-P300

79

1

Appendix D: Temperature sensor A/CP-|-2.5”-PB

Figure D.1: Temperature sensor A/CP-|-2.5”-PB
➢ Specifications:
• Resistance: 10kΩ
• Maximum flow velocity: 26.8m/s
• Probe/probe cover material: 304 stainless steel
• Probe/probe cover diameter: 6.35/6.61 mm
• Cover material: ABS plastic
• Working temperature: -30˚C ÷ 90˚C
• Fire resistance: UL94-HB
➢ Wiring diagram

Figure D.2: Wiring diagram temperature sensor A/CP-|-2.5”-PB

80

Appendix E: Bypass Valve NABM1.2-02

Figure E.1: Bypass valve NABM1.2-0.2
➢ Specifications:
• Brand: NENUTEC
• Power: 24VDC
• Control signal: 0-10V
• Output signal: 0-10V
• Torque: 2Nm
• Shaft size: 9mm
• Protection level: IP54
• Working temperature: -20˚C ÷ 50˚C
• Internal thread size: G1 [1].
➢ Wiring diagram

Figure E.2: Wiring diagram NABM1.2-0.2

81

Appendix F: IG5A Inverter

Figure F.1: IG5A inverter
➢ Specifications:
Table F.1: IG5A inverter specifications
Model

SV037iG5A-4

Input Voltage

3 pha 380~480V

Output Voltage

3 pha 380~480V

Input Current

10.5A

Output Current

8A

Input Frequency

50-60Hz

Output Frequency

0.1~400Hz

82

➢ Inverter pin diagram:

Figure F.2: Inverter pin diagram

83

➢ Inverter register address:

84

Figure F.3: Inverter register addresses

85