Secodata Technologies Ltd.

Energy Saver forFan Coil Unit

Green I&T Day Aug 6

Company History2015

Established by City University students and teaching staff. Aiming HVAC* energy saving and health data collection solutions201

7201820182019

Production of Energy Saver. 3 patents registered

Customer installations. Up to 50% savings

Develop smart thermostat and health data collection solutions

Adding professional management people. Speed up market development

* HVAC: Heating, Ventilation and Air Conditioning

Market NeedsHVAC System uses vast amount of energyAbout HALF of the electricity used in commercial buildings is used in HVAC system.

Energy-saving requirements of Government and

EnterprisesGovernment and large companies (such as hotels) need to meet annual energy-saving targets.

Difficulties in HVAC management

It is difficult for general technical or management personnel to fully understand wide varieties of complicated HVAC systems.

Requires a simple and effective intelligent energy-saving systemSaves energy without increasing human resources

AC56%

SET 2015 Conference Paper: Space Cooling in Buildings in Hot and Humid Climates – a Review of the Effect of Humidity on the Applicability of Existing Cooling Techniques

Government Energy-saving Requirements

到2020年，全國萬元國內生產總值能耗比2015下降15%

Enterprise Energy-saving Requirements

Fan Coil Unit System

Connecting Energy Saver to Fan Coil Unit

Install in 40 minutes

HIGHMEDLOW(L)(N)

HIGHMEDLOW(L)(N)

Traditional connection

Energy Saver installed between thermostat and fan coil unit

Energy Saver Architecture Single stage architecture

Less complex than inverter

Low conversion loss

Sinusoidal output

Compensator power rating is less than t

he Motor power rating

Step-less fan speed control

3 patentsIntegration of Power Electronics

NLmain

VS

L

RotorRmain

Raux Laux

IM

Vx

ConverterVM

Crun

Direct BenefitsHigh

Speed(1120 rpm)

MiddleSpeed

(830 rpm)

LowSpeed

(630 rpm)

Ultra LowSpeed

(520 rpm)

Traditional Control 242W 235W 213W N/A

Energy Saving Control 237W

180W(55w)(reduced by 24 %)

124W(-88w)(reduced by 42 %)

90W(-120W)(reduced by 56 %)

Electricity Tariff

Save (7x24)- $481/year $770/year $1,051/year

ReducedCO2/year *

- 505kg/year 809kg/year 1,104kg/year

In-house laboratory test at City University of Hong Kong

* Public Electricity and Heat Production - summary tables of IEA (2002b)

Indirect Benefits

Maintains sinusoidal electric current

Rejects current harmonic distortion to motor

Reduces acoustic noise

Reduces electromagnetic emission

Prolongs lifespan of fan motor

With Energy Saver

Conventional Thermostat

Longer Motor Life

Fan Coil Unit (AC Motor)

Power consumption

124 W

Power consumption

213 W

In-house laboratory test at City University of Hong Kong – Low Speed Mode

Traditional control Energy Saver control

42% less energy consumption, 25.5˚C less operation temperature

Energy Saver Summary

Reduces Fan Coil Unit energy consumption

50% reduction in energy consumption

40 minutes installationSimply connect Ther

mostat and Fan Coil Unit

Low-investment

Reduce carbon footprint

3 Yearspayback

Corporate image

Energy Saver in a 5-star Chain Hotel in HK

Fan Coil Unit

AC Motor

Energy Saver+EnergyMeter

Energy Saving Measurement K

it

Energy Saver

Disabled

Power：66.37W

Energy SaverEnabled

Power：33.89W

Energy Reduction: (66.37 - 33.89) / 66.37 x 10

0% = 49%

2019 Market Development Plan

H2 PartnersOEM or global: Sinko, Carrier & Schneider

H1 SeminarsHK Hotel Assoication& CLP

H1 Build CasesIn hotel, office, ma

ll, hospital, government & university

H2 More RegionsSales partners in Ch

ina, Macao, Europe &South East Asia. Visit related trade shows & collect marketinformation

Advantages of Secodata

CITYU staff & students

R&D Support

Rich market & product development ex

perience

Professional Management Team

3 registered patents &

independent algorithms

Independent Patents

Huge potential. Existing customers including hotel chain &

office buildings

Targeting Buildings & Smart Cities

Develop for existing & future

needs

Energy & Carbon Footprint Saving

Thank you

Secodata TechnologiesEnergy Saver