PerformanceSchool air conditioning case study

Delivering the comfort study environment which students, teachers, and parents have been waiting for through an combination of exceptional energy efficiency and operation.

Capacity limit control/refrigerant temperature control

Comparison of power consumption with and without control

Control contents

Power consumption was reduced by saving the capacity of air conditioners that had been operating in a wasteful manner, for example through excessive cooling.

Control results

Comparison of performance with and without control

Phenomena such as excessive cooling are automatically detected using information that includes weather forecasts (Weather data).
The system creates a comfortable learning environment in an environmentally responsible manner.

*Conditions

Measurement time: July 18, 2007
Power, operating hours, refrigerant temperature, and other readings were calculated by analyzing data stored by the air conditioner.

Building and equipment overview

Client:Japan School B (high school)
VRV type air conditione(total: 114hp)
Start of energy-saving control: June 2007
Reduction result: 24% reduction in air conditioning power consumption

Japan's Energy-Saving prize awarded

The 5th Eco-Products Awards Minister's Prize, the Ministry of Environment (Eco-Services Category)