Loop-to-Loop Heat Pump double counting of heat electricity

asked 2018-08-10 01:53:02 -0500

updated 2018-08-15 10:03:41 -0500

Using the latest version of eQUEST v3.65, build 7174, we've got a model of a central hydronic heat pump that we've modeled as a 'loop-to-loop heat pump' chiller. What we are observing is the input energy (electricity) reported to the electric meter when the chiller is in heating mode is exactly 2x the electricity reported under the hourly report variable 'Electric heat use - chiller/heater only'. Hourly COP calculated using the hourly report variable is consistent with expected COP value, so it seems like there is a bug here.

Has anyone else encountered this issue, or have model they've developed that they could check to see if they observe the same behavior?

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