Large commercial facilities have mainly used the absorption chiller-heater capable of responding the cooling/heating demand with one unit. However, adoption of electrical heat source has increased which responds to the large capacity by connecting better efficient module heat pump chiller. We remotely monitored the energy measurement and surveyed the actual conditions of the air-conditioning heat source for seven months with various measurement devices installed around the heat source equipment at our latest jobsite. In this paper, we will introduce our findings.
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