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defining 'setback temperature' for HVAC

asked 2023-12-01 01:02:39 -0500

mrv's avatar

updated 2023-12-01 08:48:55 -0500

Hi, I need to define the setback temperature to energyplus for HVAC Systems. How can I define it? It seems only 'setpoint temperatures' can be defined on 'HVAC:Template: Thermostat' section. Can u please help me to find the right section to define 'setback temperature'? Many thanks.

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answered 2023-12-01 13:47:56 -0500

Unless I'm missing something, one always needs an HVACTemplate:Thermostat as part of an EnergyPlus HVACTemplate combination. HVACTemplate:Thermostat objects have the option of defining heating and/or cooling setpoint temperature schedules. One introduces setbacks by altering setpoint values in either schedule.

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answered 2023-12-01 23:47:31 -0500

cdouglass's avatar

With the object you are talking about, you have two options, you can either have a constant setpoint or a setpoint schedule.

A setback suggests that you do not have a constant setpoint, which means, as Denis suggests, you would need to use a setpoint schedule instead. There, you could define your setpoint/setback schedule, for example, from 8am to 10pm, your heating setpoint value could be 69 degrees F., and from 10pm to 8am, your heating setpoint ("setback") value could be 64 degrees F.

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Asked: 2023-12-01 01:02:39 -0500

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Last updated: Dec 01 '23