I would like to set the CHW pump schedule to match the operation schedule of the chillers. As each of the three chillers has its own schedule. I have successfully set the schedules for two pumps, and they both start and stop according to the months I specified. However, there is one pump that does not follow my set schedule, no matter what I try.
Here are the schedule of the pump that doesn't follow my set:
Schedule:Compact,
SKM CHW Pump Schedule 800RT, !- Name
Fraction, !- Schedule Type Limits Name
Through: 5/31, !- Field 1
For: AllDays, !- Field 2
Until: 24:00, !- Field 3
0, !- Field 4
Through: 10/31, !- Field 5
For: AllDays, !- Field 6
Until: 8:00, !- Field 7
0, !- Field 8
Until: 22:30, !- Field 9
1.0, !- Field 10
Until: 24:00, !- Field 11
0, !- Field 12
Through: 12/31, !- Field 13
For: AllDays, !- Field 14
Until: 24:00, !- Field 15
0; !- Field 16
I have configured this schedule in the 'pump flow rate schedule', just as I did for the other pumps. I have also attempted to use the Energy Management System, with the detailed code as follows:
EnergyManagementSystem:Sensor,
EMSSensorCHWLOOPSUPPLYPUMP, !- Name
SKM CHW Pump Schedule 800RT, !- Output:Variable or Output:Meter Index Key Name
schedule value; !- Output:Variable or Output:Meter Name
EnergyManagementSystem:Actuator,
PumpControl, !- Name
CHW LOOP SUPPLY PUMP, !- Actuated Component Unique Name
Plant Component Pump:ConstantSpeed, !- Actuated Component Type
On/Off Supervisory; !- Actuated Component Control Type
EnergyManagementSystem:ProgramCallingManager,
Pump EMS PCM, !- Name
BeginTimestepBeforePredictor, !- EnergyPlus Model Calling Point
PumpEMSProgram; !- Program Name 1
EnergyManagementSystem:Program,
PumpEMSProgram, !- Name
IF (EMSSensorCHWLOOPSUPPLYPUMP> 0), !- Program Line 1
SET PumpControl = 1, !- Program Line 2
ELSE, !- A4
SET PumpControl = 0, !- A5
ENDIF; !- A6
Despite these settings, the pump still does not follow the schedule to operate. Could anybody please tell me if I am missing any important settings or what might be going wrong?
