eQUEST Building Energy Modeling Guide for LG ... - LG-VRF.com

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Case StudyFigure 14: Cap Curves/Waste Ht (Heating) Tab.Figure 15: Supp Heat/Defrost (Heating) Tab.• HP-SUPP-SOURCE: Not installed• DEFROST-TYPE : REVERSE-CYCLE• DEFROST-CTRL : ON-DEMAND• DEFROST-T : Set to 40°F.VRF-TG-BK-001-US 012G03 14
Case Study13. We then add fan parameters. We enter the total static pressure (TSP) orfan power (kW/cfm) of the system supply fan.Note:TSP includes also includes pressure drops across filters andother internal air handler components.Depending on the system type, you can set fans to cycle at night. Select“no OA at night” if there is no economizer or “no OA at night +economizer” plus the economizer type if your system has aneconomizer.Note:You may need to remove the economizer low limit in detailmode.For our system, we have four 4-Way Ceiling cassettes (ARUN243TMC2),each with a 30W fan motor moving air at 600 cfm.Figure 16: Fan Power and Control (Fans) Tab.Refer to the EPDB for the indoor units you intend to model to find theTSP and other data. Pressure losses should include filters, coils, and thedistribution system. You should use the full-load power of the supplyfan per unit of supply air flow rate at sea level, using either SUPPLY-STATIC or SUPPLY-KW/FLOW. eQUEST calculates the part-load powerconsumption of the supply fan versus the part-load characteristicsVRF-TG-BK-001-US 012G03 15
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