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Building Performance Curves for Coil:Cooling:DX:VariableSpeed

Hello,

I am trying to build performance curves for the speeds of a variable speed air conditioner. Specifically, for the Field: Speed <x> Total Cooling Capacity Function of Temperature Curve Name, the documentation states that the curve must be normalized to the cooling capacity at Speed<x> from the Reference Unit data, and have the value of 1.0 at the rating point.

Does anyone have guidance on how to create this curve normalized to the cooling capacity at said speed? This will help me with the remaining curves as well.

As a reference, here is the documentation for this curve:

This alpha field defines the name of a bi-quadratic performance curve for Speed <x> (ref: Performance Curves) that parameterizes the variation of the gross total cooling capacity as a function of the both the indoor wet-bulb and source side entering air temperature, from the Reference Unit. The output of this curve is multiplied by the gross rated total cooling capacity at the speed to give the gross total cooling capacity at specific temperature operating conditions (i.e., at an indoor air wet-bulb temperature or outdoor entering air temperature different from the rating point temperature). It should be noted that the curve is normalized to the cooling capacity at Speed<x> from the Reference Unit data, and have the value of 1.0 at the rating point.

Thank you,

Rob Salcido

Building Performance Curves for Coil:Cooling:DX:VariableSpeed

Hello,

I am trying to build performance curves for the speeds of a variable speed air conditioner. Specifically, for the Field: Speed <x> Total Cooling Capacity Function of Temperature Curve Name, the documentation states that the curve must be normalized to the cooling capacity at Speed<x> from the Reference Unit data, and have the value of 1.0 at the rating point.

Does anyone have guidance on how to create this curve normalized to the cooling capacity at said speed? This will help me with the remaining curves as well.

As a reference, here is the documentation for this curve:

This alpha field defines the name of a bi-quadratic performance curve for Speed <x> (ref: Performance Curves) that parameterizes the variation of the gross total cooling capacity as a function of the both the indoor wet-bulb and source side entering air temperature, from the Reference Unit. The output of this curve is multiplied by the gross rated total cooling capacity at the speed to give the gross total cooling capacity at specific temperature operating conditions (i.e., at an indoor air wet-bulb temperature or outdoor entering air temperature different from the rating point temperature). It should be noted that the curve is normalized to the cooling capacity at Speed<x> from the Reference Unit data, and have the value of 1.0 at the rating point.

Thank you,

Rob Salcido

Building Performance Curves for Coil:Cooling:DX:VariableSpeed

Hello,

I am trying to build performance curves for the speeds of a variable speed air conditioner. Specifically, for the Field: Speed <x> Total Cooling Capacity Function of Temperature Curve Name, the documentation states that the curve must be normalized to the cooling capacity at Speed<x> from the Reference Unit data, and have the value of 1.0 at the rating point.

Does anyone have guidance on how to create this curve normalized to the cooling capacity at said speed? This will help me with the remaining curves as well.

As a reference, here is the documentation for this curve:

This alpha field defines the name of a bi-quadratic performance curve for Speed <x> (ref: Performance Curves) that parameterizes the variation of the gross total cooling capacity as a function of the both the indoor wet-bulb and source side entering air temperature, from the Reference Unit. The output of this curve is multiplied by the gross rated total cooling capacity at the speed to give the gross total cooling capacity at specific temperature operating conditions (i.e., at an indoor air wet-bulb temperature or outdoor entering air temperature different from the rating point temperature). It should be noted that the curve is normalized to the cooling capacity at Speed<x> from the Reference Unit data, and have the value of 1.0 at the rating point.

Thank you,

Rob Salcido