American Power Conversion Central Air Conditioning System manual

Models: Central Air Conditioning System

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Coil Fluid Temp Activation Threshold and Deadband

Operation: Options for Fluid-Cooled Modules

Coil Fluid Temp Activation Threshold and Deadband

Path: Main > Setup > System # > System Config > Coil Fluid Options

The selections for Coil Fluid Options help control the optional MultiCool coil or Economizer coil in equipped Systems. Set the temperature threshold and deadband for using the MultiCool coil or the Economizer coil. The System will compare the actual coolant temperature with the setpoint and deadband to determine if the coolant is at a temperature low enough to operate the coils.

The Coil Fluid Temp Activation threshold and deadband do not apply to Modules that use only a chilled water coil for cooling.

Note

Coil Fluid Temp Activation: Threshold. Set the coil fluid temperature activation threshold. The coolant temperature must be below the threshold to use the optional MultiCool coil or Economizer coil.

Coil Fluid Temp Activation: Deadband. Set the MultiCool or Economizer activation deadband.

The deadband is the sensitivity range above the coil fluid temperature activation: threshold that determines when the controller will stop using the MultiCool coil or Economizer coil and when it will reengage the coil. For example, if the threshold is 50° F (10° C) and the deadband is

4° F (2.2° C), the controller will disengage the MultiCool coil or Economizer coil when the coolant temperature exceeds 54° F (12.2° C),and will not reengage the coil until the coolant temperature reaches 50° F (10° C).

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American Power Conversion Central Air Conditioning System manual Coil Fluid Temp Activation Threshold and Deadband