eQUEST Building Energy Modeling Guide for LG ... - LG-VRF.com
eQUEST Building Energy Modeling Guide for LG ... - LG-VRF.com
eQUEST Building Energy Modeling Guide for LG ... - LG-VRF.com
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Case StudyCase StudyThis document uses multiple sources of in<strong>for</strong>mation to streamline the energymodeling process <strong>for</strong> variable refrigerant flow (<strong>VRF</strong>) systems. This casestudy features a building that is served by a <strong>VRF</strong> system. This studydemonstrates how to model the indoor units, piping, and outdoor units.Figure 8: <strong>eQUEST</strong> main window.To model the building’s energy use:1. We determine systems loads by space or zone, using the loadcalculation results from <strong>eQUEST</strong>. For example, if four arbitrary zonesare created, the peak loads of the might appear as follows:Zone 1 = 24,000 Btu/hrZone 2 = 24,000 Btu/hrZone 3 = 24,000 Btu/hrZone 4 = 24,000 Btu/hr2. Our building’s location is Atlanta, so the design temperature is 94°F.3. We select an indoor unit (IDU) <strong>for</strong> each zone or space using the <strong>LG</strong> MultiV III product line. We decide on four Four-Way Ceiling Cassettes.4. We inspect the indoor unit capacity tables <strong>for</strong> those units, consideringthe indoor and outdoor temperatures. Select units whose capacity is thenearest to or greater than the anticipated load. Are choices were asfollows:<strong>VRF</strong>-TG-BK-001-US 012G03 8
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