Trace 3D Plus
User Guide
 
×

Product tab

  
Full Load Energy
Default: 22 W/gpm, 348701.1 W/(m3/sec)
Typical Range: 0 to 999,999,999,999,999
Units: W, hp, kW, therms, W/(m3/sec), W/(gpm), W/(L/sec), W/((m3/sec)·Pa), W/(gpm·ftH2O), W/((L/sec)·Pa)
Enter the Full load energy consumption value and select the appropriate units to describe the amount of energy consumed by this pump.
 
Pump Head
Default: 60 ft H2O, 179352 Pa
Typical Range: 0 to 999,999,999,999,999
Units: Pa, kPa, ft H2O
This numeric field contains the pump’s rated head pressure. 
 
 
Motor Efficiency
Default: 90%
Typical Range: 0 to 100
Units: %
This numeric field contains the pump’s efficiency in terms of percent. For example, if 90% is the desired motor efficiency, enter 90 into the field and not 0.9. 
 
Number of Pumps
Default: 2
Typical Range: 2 to 100
The numeric field specifies the number of pumps present in the pump bank. All these pumps are connected in parallel internally.
 
Motor Heat to Fluid
Default: 100%
Typical Range: 0 to 100
Units: %
This value is the fraction of the motor heat that is added to the fluid stream. A value of 0 means that the motor is completely outside the fluid stream. A value of 100 means that all of the motor heat loss will go into the fluid stream and act to cause a temperature rise. This value must be between 0 and 100.
 
  
Flow Control Type
Default: Continuous
 
This is a choice field of Continuous or Intermittent. A variable speed pump is defined with maximum and minimum flow rates that are the physical limits of the device. If there is no load on the loop and the pump is operating intermittently, then the pump can cycle off. For any other condition where there is a load on the loop and the pump is operating intermittently or the pump is continuously operating (regardless of the loading condition), the pump will operate and select a flow somewhere between the minimum and maximum limits. In these cases where the pump is running, it will try to meet the flow rate requested by the demand side components. Applicable availability managers (ref. Availability Manager Assignment List*) may override this control by forcing the pump to be on or off.