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HPWH Performance Report On a February 27th visit to Rossland Site 1 we discovered that the unit’s components in the upper section, especially the PCB, were covered in condensation. This water was infiltrating the upper section of the outdoor unit through a hole leading to the fan section. We wiped up the collected water and patched the hole to prevent further damage. Figure 28: Normal controller (left) and Condensation in Unit from Infiltration (right) 10.2 Rossland Site 2 (Sanden) Observed data: Rossland Site 2 is equipped with a 315-litre (83-gallon) tank and has been observed so far over a 455- day monitoring period during the Winter performance period. The unit has performed with a COP of 3.15 with an average ambient temperature of 7°C (44.6°F) and saw an average water flow of 102 litres per day (32 gallons per day). Table 20: Rossland Site 2 Summary Rossland Site 2 Sanden 315-L [83-gal] 11/5/16 2/16/18 Table 21: Rossland Site 2 Variables 7°C27 102 LPD 59°C Rossland Site 2 3.15 [44.6°F] [32 GPD] [139°F] 455 10.5°C [50.9°F] Site Unit Type Tank Size Beginning Date Ending Date Days of Monitoring Period Data Site COP Average Ambient Temp Average Daily Water Flow Average Hot Water Temp Average Inlet Water Temp (°F) 27 The outdoor unit of Rossland Site 2 is near a south facing concrete wall. Thus, the average ambient temperature is 2-4°C warmer than the other two Rossland sites over the same period. This is part of the reason this unit perform better than the other two sites during the Winter months. 28PDF Image | CO2 Integrated Heat Pump Water Heater
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