FACULTY OF INTERNATIONAL EDUCATION
HCMC UNIVERSITY OF TECHNOLOGY AND EDUCATION

GRADUATION PROJECT

APPLICATION OF BMS FOR MONITORING AND OPERATION OF
HEAT RECOVERY VENTILATOR IN HVAC SYSTEMS

Supervisor:

Ph.D Le Trong Nghia

Student:

Nguyen Son Nguyen

Student ID:

20142011

Student:

Nguyen Hoang Long

Student ID:

20142227

Ho Chi Minh City, December 2024

FACULTY OF INTERNATIONAL EDUCATION
HCMC UNIVERSITY OF TECHNOLOGY AND EDUCATION

GRADUATION PROJECT

APPLICATION OF BMS FOR MONITORING AND OPERATION OF
HEAT RECOVERY VENTILATOR IN HVAC SYSTEMS

Supervisor:

Ph.D Le Trong Nghia

Student:

Nguyen Son Nguyen

Student ID:

20142011

Student:

Nguyen Hoang Long

Student ID:

20142227

Ho Chi Minh City, December 2024

THE SOCIALIST REPUBLIC OF VIETNAM
Independence – Freedom – Happiness
-Ho Chi Minh City, December 2024

GRADUATION PROJECT ASSIGNMENT
Student name: Nguyen Hoang Long

Student ID: 20142227

Student name: Nguyen Son Nguyen

Student ID: 20142011

Major: Electrical and Electronic Engineering Technology
Supervisor: LE TRONG NGHIA, Ph.D

Phone number:
Date of submission:

1. Project title: Application of BMS for Monitoring and Operation of Heat Recovery
Ventilator in HVAC systems

2. Content of the project:
..................................................................................................................................................
..................................................................................................................................................

3. Final product:
..................................................................................................................................................

CHAIR OF THE PROGRAM

SUPERVISOR

(Sign with full name)

(Sign with full name)

THE SOCIALIST REPUBLIC OF VIETNAM
Independence – Freedom – Happiness
-Ho Chi Minh City, December 2024
EVALUATION OF SUPERVISOR SHEET
Student name: Nguyen Hoang Long

Student ID: 20142227

Student name: Nguyen Son Nguyen

Student ID: 20142011

Major: Electrical and Electronic Engineering Technology
Supervisor: LE TRONG NGHIA, Ph.D

Phone number:
Date of submission:

EVALUATION

1. Content of the project
..................................................................................................................................................
.....................................................................................................................................
...

...


Table A. 3: Signal Pin Connection Table for Devices:
Number

Type

Deion

Object name

Present value

1

MPrcVal

CHEDO_AUTO_MAN

CHEDO_AUTO_MAN

NULL

2

BPrcVal

LICH_LAM_VIEC

LICH_LAM_VIEC

NULL

3

BPrcVal

BIENTAN_MAN_REL.. BIENTAN_MAN_REL..

NULL

4

APrcVal

BIENTAN_MAN_TAN

BIENTAN_MAN_TAN

NULL

5

APrcVal

NHIETDO_CAI_DAT..

NHIETDO_CAI_DAT..

NULL

6

APrcVal

NHIETDO_CAI_DAT..

NHIETDO_CAI_DAT..

NULL

7

APrcVal

AP_SUAT_CAI_DAT

AP_SUAT_CAI_DAT

NULL

8

APrcVal

CHENH_AP

CHENH_AP

NULL

Authors: Nguyen Son Nguyen-20142011 Nguyen Hoang Long-20142227

81

APPENDIX

APPENDIX B: VARIABLE FREQUENCY DRIVE IG5A
The IG5A variable frequency drive is used to control various types of motors such as
induction AC, synchronous AC, and servo motors. It offers multiple control functions
including soft start, braking, and speed adjustment.

Figure B. 1: ARIABLE FREQUENCY DRIVE IG5A product.
It provides motor protection against risks such as over-voltage, under-voltage,
overheating, and short circuits. Specifications Table B. 1 Specifications of IG5A.
Terminal Wiring
- Control terminal wiring

Figure B. 2: VFD terminal wiring.
Authors: Nguyen Son Nguyen-20142011 Nguyen Hoang Long-20142227

82

APPENDIX

- Power Terminating

Figure B. 3: VFD power terminal wiring diagram.
Control terminal specification

Figure B. 4: Terminal specification.

Authors: Nguyen Son Nguyen-20142011 Nguyen Hoang Long-20142227

83

APPENDIX

APPENDIX C: NATIONAL STANDARDS TCVN 5687:2024 Ventilation and Air
conditioning – Design requirements
(Appendix F)
Outside air flow (fresh air) for mechanically ventilated rooms
Table F.1 – Number of air exchanges (multiples)
Room type, building
Offices
Houses, bedrooms
Hotel dining rooms, canteens
Shops, supermarkets
Factory, industrial buildings
Classrooms
Laboratories
Libraries
Hospitals
Theaters, cinemas
Lounges, corridors, stairs, exits**
Bathrooms, toilets
Kitchens (commercial, dormitories, factories)
Garages
Fire stations
Water supply and drainage pump rooms

Number of air exchanges
(multiples), times/h
6
2-3
10
6
6
8
10-12
5-6
6-8
8
4
10
20
6*
6
8

* Applicable for room height 2.5 m. When room height is over 2.5 m, it must be
calculated according to the increase in height ratio
** Halls with an area of less than 10 m2 do not require mechanical ventilation.
For rooms in basements, the air exchange rate can be increased by 20% to 50%.

Authors: Nguyen Son Nguyen-20142011 Nguyen Hoang Long-20142227

84