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Description: "Entering condenser air drybulb temperature"
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Data Type: "[Numeric][1..]"
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Units: "K"
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Constraints: ">0.0"
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Required: False
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condenser_air_entering_relative_humidity:
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Description: "Entering condenser air relative humidity"
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Data Type: "[Numeric][1..]"
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Units: "-"
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Constraints: ">0.0, <1.0"
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Required: False
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ambient_pressure:
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Description: "Ambient pressure used to calculate the performance"
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Data Type: "[Numeric][1..]"
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Units: "Pa"
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Constraints: ">0.0"
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Required: False
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Notes: "Informative Note: the intent of the ambient pressure is to capture the pressure at the installation and not changes in the ambient pressure due to weather effects"
Description: "Index indicating the relative capacity order of the compressor speed/stage expressed in order from lowest capacity (starting at 1) to highest capacity"
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Data Type: "[Integer][1..]"
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Constraints: ">=1"
@@ -336,70 +318,158 @@ GridVariablesCooling:
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"If `compressor_speed_control_type` is `CONTINUOUS`, sufficient sequence numbers shall be provided to capture the continuous operation of the compressor(s)"]
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Required: True
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LookupVariablesCooling:
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LookupVariablesCoolingLiquid:
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Object Type: "Lookup Variables"
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Data Elements:
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input_power:
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input_power:&input_power
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Description: "Total power input"
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Data Type: "[Numeric][1..]"
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Units: "W"
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Constraints: ">=0.0"
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Required: True
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Scalable: True
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Notes: "All power consumed by the chiller, including controls, motors, variable speed drives, purge units, sump heaters, fans, etc."
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net_evaporator_capacity:
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net_evaporator_capacity:&net_evaporator_capacity
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Description: "Refrigeration capacity"
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Data Type: "[Numeric][1..]"
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Units: "W"
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Constraints: ">=0.0"
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Required: True
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Scalable: True
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Notes: "The available cooling capacity of the evaporator to the thermal load calculated using only the sensible heat transfer"
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net_condenser_capacity:
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net_condenser_capacity:&net_condenser_capacity
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Description: "Condenser heat rejection"
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Data Type: "[Numeric][1..]"
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Units: "W"
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Constraints: ">=0.0"
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Required: True
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Scalable: True
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Notes: "The capacity of the condenser transferred to the condenser cooling stream using only the sensible heat transfer"
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condenser_air_volumetric_flow_rate:
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Description: "Condenser air flow"
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Data Type: "[Numeric][1..]"
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Units: "m3/s"
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Constraints: ">0.0"
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Required: False
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Scalable: True
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oil_cooler_heat:
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oil_cooler_heat: &oil_cooler_heat
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Description: "Heat transferred to another liquid crossing the control volume boundary from the chiller oil cooler."
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Data Type: "[Numeric][1..]"
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Units: "W"
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Constraints: ">=0.0"
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Required: True
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Scalable: True
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Notes: "Set as 0 if not present or if heat rejection is met by condenser"
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evaporation_rate:
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Description: "Rate at which water evaporates from the condenser."
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Data Type: "[Numeric][1..]"
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Units: "m3/s"
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Constraints: ">=0.0"
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Required: False
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Scalable: True
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Notes: "Does not include blow down or drift losses."
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auxiliary_heat:
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auxiliary_heat: &auxiliary_heat
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Description: "Heat transferred to another liquid crossing the control volume boundary from the chiller auxiliaries (motor, motor controller, inverter drive, starter, etc)."
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Data Type: "[Numeric][1..]"
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Units: "W"
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Constraints: ">=0.0"
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Required: True
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Scalable: True
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Notes: "Set as 0 if not present or if heat rejection is met by condenser"
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operation_state:
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operation_state:&operation_state
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Description: "The operation state at the operating conditions"
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Data Type: "[<OperationState>]"
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Units: "-"
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Required: True
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PerformanceMapCoolingAir:
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Object Type: "Performance Map"
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Data Elements:
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grid_variables:
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Description: "Data group defining the grid variables for cooling performance"
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Data Type: "{GridVariablesCoolingAir}"
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Required: True
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lookup_variables:
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Description: "Data group defining the lookup variables for cooling performance"
Description: "Entering condenser air relative humidity"
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Data Type: "[Numeric][1..]"
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Units: "-"
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Constraints: ">0.0, <1.0"
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Required: False
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ambient_pressure:
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Description: "Ambient pressure used to calculate the performance"
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Data Type: "[Numeric][1..]"
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Units: "Pa"
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Constraints: ">0.0"
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Required: False
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Notes: "Informative Note: the intent of the ambient pressure is to capture the pressure at the installation and not changes in the ambient pressure due to weather effects"
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