open229 / ruleset-model-description-schema

Developing a schema for ASHRAE Standard 229P.
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G3.1.3.14 "Supply air temperature setpoint shall be constant at the design condition" requires additional input at terminal level #114

Closed supriyagoel closed 2 years ago

supriyagoel commented 2 years ago

G3.1.3.12 deals with cooling SAT (control of cooling coil), and G3.1.3.14 is for heating temperature for fan-powered boxes. This requires an additional input at the terminal level for reheat temperature control with same options as the 'temperature_control' parameter under FanSystems. Dont think we need terminal.supply_temperature_setpoint- not sure if there are any rules which specify the reheat SAT

mkarpman commented 2 years ago

I agree with Supriya.

JasonGlazer commented 2 years ago

@supriyagoel and @mkarpman it seems like some of the options in the FanSystemTemperatureControlOptions enumeration do not make sense - I am proposing the following for a new TerminalTemperatureControlOptions enumeration:

This does not include the options:

Does that make sense to you?

mkarpman commented 2 years ago

For what it's worth, in eQUEST, the relevant keyword is Zone-Fan-T-SCH which is a schedule with the zone temperature at which the terminal blower turns on. Using the enumerations above, that supports CONSTANT (when all schedule setpoints are the same) or SCHEDULED.

JasonGlazer commented 2 years ago

@mkarpman ok, I will add back SCHEDULED

JasonGlazer commented 2 years ago

This will be part of 0.0.17