Explore two of the most relevant topics, given the exponentially growing demand of HVAC solutions in the region and the significant energy savings achieved with heat pump solutions, especially relevant to the thriving hotel industry of Southeast Asia.

2. Development of R290
Air-to-Water Heat Pump
& Chiller in Thailand
The leader in Energy Saving and Air Purification

3. Company Background
Head Office Location Nontaburi , Thailand
Number of Employee 537 (as of 1st Sep 2018)
Production Capacity 360,000 sets of air conditioner
Product Range
✓ Room Air Conditioner – Wall Mounted
✓ Light Commercial Air Conditioner – Cassette, Ceiling, Duct, Floor Standing
✓ Commercial AC – VRF, RTP, CHW, Chiller
✓ Air Purifier

4. Refrigerant R32 (87%), R410A (13%), R22 (Obsolete)
Key Technology Inverter
IoT – Internet of Things – Smart WiFi, Centralized Control
IAQ – Indoor Air Quality – Relative Humidity, CO2, PM2.5
Monitor and Control
Country Coverage Japan, Australia, Singapore, Middle East, Laos, Vietnam,
Cambodia, Bangladesh, etc.
Company Background

5. Company Location
Production and Warehouse Area: 320,000 sq.m.

6. Company Location

7. AWARDS & RECOGNITIONS
Exported
to Japan
Saijo Denki has been
recognized as one of the
leading air conditioner brand
with highest state-of-the-art
technologies in terms of high
reliability, energy saving, low
noise and good
cooling/heating capacity.
Recently, Saijo Denki air
conditioners have been
imported by top Japanese
importer to Japan to use in
Japan market. Therefore, this is
another strong proof of
continuous success in quality
and technology development.

8. AWARDS & RECOGNITIONS
Recognition & Awards
https://e-services.nea.gov.sg As of August 6th 2015
Top Energy Saving
Ranking
In Singapore

9. Solution for Smart, Green,
Hygienic Building
Building Size: 3,000 RT VRF
(298 CDU, 1278 FCU)
200 RT AHU Inverter R410A
169 ERV
Smart Building:
Cloud Connect
Centralized Control
Data Visualization
Green Building
EER increase 117%
Energy Monitoring
Hygienic Building
PM2.5, CO2, Relative Humidity
IAQ inline with ASHRAE 62.1 standard

10. Smart Energy Saving
Monitor Control Report
“Centralized Control”
A System-wide Smart City Monitoring System
✓ Operation history
✓ Set Temperature
✓ Energy Consumption

11. Smart Indoor Air Quality
Monitor Control Report
“Centralized Control”
A System-wide Smart City Monitoring System
✓ PM2.5
✓ Relative Humidity
✓ Oxygen, Carbon Dioxide

12. Why R290 ?
Refrigerant ODP GWP Flammability Remark
HFC410A 0 2,088 A1 – Non Flammable 13% of Saijo Denki Production
HFC32 0 675 A2L – Mildly Flammable 87% of Saijo Denki Production
R290 0 3 A3 – Highly Flammable

13. Why R290 ?
https://insights.globalspec.com/article/4819/low-gwp-refrigerants-understanding-gwp-ghg-odp-and-climate-change

14. Why R290 ?
https://insights.globalspec.com/article/12249/what-is-the-ideal-refrigerant

15. For Energy Saving Application
• Inverter Driven for higher COP
• BLDC Condenser Fan
• Product Range
Product Range
1 Phase – 6, 7, 9.6 kW at A2/W35
3 Phase – 12, 16 kW at A2/W35
Sample Ready – Dec 2019
R290 Inverter ATW
Heat Pump
This content is developed by Saijo Denki. All rights reserved.
This technology have already been patented or patent pending by Saijo Denki innovators.

16. Why R290 ?
Why Inverter ?
This content is developed by Saijo Denki. All rights reserved.
This technology have already been patented or patent pending by Saijo Denki innovators.
Indirect Emission Direct Emission
Energy Efficiency Low GWP Refrigerant
Inverter R290

17. Refrigeration and
Water Diagram
• Using both Pressure Sensor and
Temperature Sensor for
• Faster Leak Check by system
data
• Better Efficiency
• Better Reliability
This content is developed by Saijo Denki. All rights reserved.
This technology have already been patented or patent pending by Saijo Denki innovators.

18. - Separate and totally sealed Control Box
- Leak Detection by both
- Leak Sensor
- System Data
- Condenser coil in air flow compartment
- Ventilation flow from
- Compressor
- Control
- Condenser
- All flow through fan and leave the
unit
Safety Design
This content is developed by Saijo Denki. All rights reserved.
This technology have already been patented or patent pending by Saijo Denki innovators.

19. Using ultrasonic sensor for
leak detection
- No dependent on wind
direction
- Low maintenance
Leak Sensor Position
This content is developed by Saijo Denki. All rights reserved.
This technology have already been patented or patent pending by Saijo Denki innovators.

20. Hot Water Generation (55 c)
even at
Ultra low ambient temperature (- 20 c)
Capacity: 4,007 watt
at A-20W55 condition
Wide Operating Envelop
This content is developed by Saijo Denki. All rights reserved.
This technology have already been patented or patent pending by Saijo Denki innovators.

21. This content is developed by Saijo Denki. All rights reserved.
This technology have already been patented or patent pending by Saijo Denki innovators.
Outdoor Unit Model Unit HP-006-HAXI HP-008-HAXI HP-012-HAXI
Heating Capacity (A2/W35) kW 6 7 9.6
Heating COP (A2/W35) - 3.8 3.9 3.8
Cooling Capacity (A35/W2) kW 5.2 9.8 13.5
Cooling COP (A35/W2) - 3.2 3.3 3.4
Sound Pressure Level at 1 m dBA 50 56 63
Height mm 900 995 1450
Width mm 1065 1185 1185
Depth mm 420 450 450
ATW Heat Pump
Inverter R290

22. This content is developed by Saijo Denki. All rights reserved.
This technology have already been patented or patent pending by Saijo Denki innovators.
Internet Connected
ATW Heat Pump
Smart Engineer
Monitor ATW Heat Pump
Self-Diagnosis and inform error codes
More than 30 errors

23. This content is developed by Saijo Denki. All rights reserved.
This technology have already been patented or patent pending by Saijo Denki innovators.
Smart 4.0
Smart Control
Monitor Indoor Temperature and
control ATW heat pump from
Smartphone application
Smart Engineer
Self-Diagnosis and inform error codes
More than 30 errors
Smart Energy
Report Power Consumption of
ATW Heat Pump
Internet Connected
ATW Heat Pump

24. 0.8 kW/ton
SEER 15
BLDC Variable Speed
Condenser Fan (Optional)
BLDC Variable Speed
Inverter Compressor &
Driver
Internet Connected
(Optional)
- Smart Monitoring
- Smart Energy
- Smart Maintenance
R290 Inverter – First Site Installation – approx. Feb 2020
Air Cooled Chiller
Inverter

25. Q & A