Central Plant Interconnection Modules - Johnson Controls - Metasys - LIT-12011147 - Software Application - Controller Configuration Tool - 16.0

Controller Tool Help

Brand
Johnson Controls
Metasys
Product name
Controller Configuration Tool
Document type
User Guide
Document number
LIT-12011147
Version
16.0
Revision date
2023-10-02
Language
English

Central Plant Interconnection Network Output modules are directly connected to Network Input modules in Central Cooling with Optimization Applications, unless otherwise indicated. The Central Plant Interconnection modules provide connection between the controller and the associated pump, tower, or other controlled device. For some of these modules, this connection occurs when the application is split across multiple controllers.

The following table describes these modules and lists the applications in which they are used.

Table 1. Central Plant Interconnection Network Output Modules

Name

Description

Applications

Building Load Source

Building Load Source - Provides input to the Building Load Dest Network Input located on the Chiller controller to indicate the cooling load of the building.

Central Cooling with Optimization Applications

Chiller Max Flow Source

Chiller Max Flow Source - Provides input to the Chiller Max Flow Dest Network Input located on the Chiller controller to indicate the maximum flow allowed for the chilled water pumps.

Central Cooling with Optimization Applications

Chiller Plant Capacity Source

Chiller Plant Capacity Source - Provides input to the Chiller Plant Capacity Dest Network Input located on the tower controller to indicate the cooling capacity of the active chillers.

Central Cooling with Optimization Applications

Chiller Plant Power Source

Chiller Plant Power Source - Provides input to the Chiller Plant Power Dest Network Input located on the tower controller to indicate the rated power of the active chillers.

Central Cooling with Optimization Applications

Chlr Max CHW Flow Source

Chiller Maximum Chilled Water Flow Source - Indicates the chiller selector required maximum primary chilled water flow.

Central Cooling with Optimization Applications

Chlr Min CHW Flow Source

Chiller Minimum Chilled Water Flow Source - Indicates the chiller selector required minimum chilled water flow.

Central Cooling with Optimization Applications

Chlr Min CW Flow Src

Indicates the chiller selector required minimum condenser water flow. This output exists in the controller that contains the chiller subsystem.

Central Cooling with Optimization Applications

Chlr Need Pmps Src

Provides chiller selector indication that pump startup is required. This output exists in the controller that contains the chiller subsystem.

Central Cooling with Optimization Applications

Chlr Req CHW Flow Src

Indicates the required chilled water flow from the chiller selector. This output exists in the controller that contains the chiller subsystem.

Central Cooling with Optimization Applications

Chlr Req CW Flow Src

Indicates the required condenser water flow from the chiller selector. This output exists in the controller that contains the chiller subsystem.

Central Cooling with Optimization Applications

Chlr Req Twr Flow Src

Indicates the required cooling tower water flow from the chiller selector. This output exists in the controller that contains the chiller subsystem.

Central Cooling with Optimization Applications

CHLR SYS-ENABLE SRC

Functions as system enable for the chiller subsystem. This output exists in the controller that contains the heat exchanger subsystem.

Central Cooling with Optimization Applications

CHW Current Cap Source

CHW Current Cap Source - Provides input to the CHW Current Cap Dest Network Input located on the CHW Pump controller to indicate the current pumping capacity of the active chilled water pumps.

Central Cooling with Optimization Applications

CHWFLOW-AVAIL

(CHW Flow Available Source)

CHWFLOW-AVAIL (CHW Flow Available Source) - Provides input to the CHWFLOW-AVAIL (CHW Flow Available Dest) Network Input located on the Chiller controller to indicate the available pumping capacity of the chilled water pumps.

Central Cooling with Optimization Applications

CHWFLOW-SP

(CHW Flow Setpt Source)

CHWFLOW-SP (CHW Flow Setpt Source) - Provides input to the CHWFLOW-SP (CHW Flow Setpt Dest) Network Input located on the chilled water pump controller to indicate the chilled water pumping capacity required by the chillers.

Central Cooling with Optimization Applications

CHWPX-CMD

(CHWP X Cmd Source)

(Where X Is 1-8)

CHWPX-CMD (CHWP X Cmd Source) - Provides input to the CHWPX-CMD (CHWP X Cmd Dest) Network Input located on the chilled water pump controller, which indicates the associated chilled water pump’s command.

Central Cooling with Optimization Applications

CHWPX-ENABLE SRC

(CHW Pump X Enable Source)

(Where X Is 1-8)

CHWPX-ENABLE SRC - Provides input to the CHW PUMPX-ENABLE DEST Network Input located on the chilled water pump controller to indicate that the chilled water pump is enabled.

Central Cooling with Optimization Applications

CW Current Cap Source

CW Current Cap Source - Provides input to the CW Current Cap Dest Network Input located on the Chiller Pump controller to indicate the current pumping capacity of the active condenser water pumps.

Central Cooling with Optimization Applications

CW Pump Count Source

CW Pump Count Source - Provides input to the CW Pump Count Dest Network Input located on the Chiller controller to indicate the number of active condenser water pumps.

Central Cooling with Optimization Applications

CWFLOW-AVAIL

(CW Flow Available Source)

CWFLOW-AVAIL (CW Flow Available Source) - Provides input to the CWFLOW-AVAIL (CW Flow Available Dest) Network Input located on the chiller controller to indicate the available pumping capacity of the condenser water pumps.

Central Cooling with Optimization Applications

CWFLOW-SP

(CW Flow Setpt Source)

CWFLOW-SP (CW Flow Setpt Source) - Provides input to the CWFLOW-SP (CW Flow Setpt Dest) Network Input located on the condenser water pump controller to indicate the condenser water pumping capacity required by the chillers.

Central Cooling with Optimization Applications

CWPX-CMD

(CWP X Cmd Source)

(Where X Is 1-8)

CWPX-CMD (CWP X Cmd Source) - Provides input to the CWPX-CMD (CWP X Cmd Dest) Network Input located on the condenser water pump controller, which indicates the condenser water pump’s command.

Central Cooling with Optimization Applications

CWPX-ENABLE SRC

(CW Pump X Enable Source)

(Where X Is 1-8)

CWPX-ENABLE SRC - Provides input to the CW PUMPX-ENABLE Dest Network Input located on the condenser water pump controller to indicate that the condenser water pump is enabled.

Central Cooling with Optimization Applications

ECON STATE SOURCE

Provides waterside economizer sequencer state. This output exists in the controller that has the heat exchanger subsystem.

Central Cooling with Optimization Applications

Hx CHW Pump ## Enable Src

(Where ## is 1-4)

Indicates that primary chilled water pump ## is enabled (where ## means 1, 2, 3, or 4). This input exists in the primary chilled water pump subsystem.

Central Cooling with Optimization Applications

Hx CW Pump ## Enable Src

(Where ## is 1-4)

Indicates that condenser water pump ## is enabled (where ## means 1, 2, 3, or 4). This input exists in the heat exchanger subsystem.

Central Cooling with Optimization Applications

Hx CHWP##-CMD

(Where ## is 1-4)

Indicates that dedicated primary chilled water pump ## is required to run (where ## means 1, 2, 3, or 4). The input exists in the controller that contains the primary chilled water pump subsystem. The output exists in the controller that contains the heat exchanger subsystem.

Central Cooling with Optimization Applications

Hx CWP##-CMP

(Where ## is 1-4)

Indicates that condenser water pump ## is required to run (where ## means 1, 2, 3, or 4). The input exists in the controller that contains the condenser water pump subsystem. The output exists in the controller that contains the heat exchanger subsystem.

Central Cooling with Optimization Applications

Hx Min CW Flow Source

Heat Exchanger Minimum Condenser Water Flow Source - Indicates heat exchanger minimum condenser water flow.

Central Cooling with Optimization Applications

HXSELECTOR-PV Src

Functions as process variable supplied to the heat exchanger selector. This output exists in the controller that contains the chiller subsystem.

Central Cooling with Optimization Applications

Min CHW Flow Setpoint Src

Min CHW Flow Setpoint Src - Provides input to the Min CHW Flow Setpoint Dest Network Input located on the chilled water pump controller to indicate the minimum flow setpoint of the chilled water through the active chillers. This modules also indicates the minimum pumping capacity required by the active chillers.

Central Cooling with Optimization Applications

Min CW Flow Source

Min CW Flow Source - Provides input to the Min CW Flow Dest Network Input located on the chiller controller to indicate the minimum condenser water pump capacity required by the active chillers.

Central Cooling with Optimization Applications

Pump Startup Required Source

Pump Startup Required Source - Provides input to the Pump Startup Required Dest Network Input located on the pump controllers to indicate the chilled water plant requires pumping and to enable the pumping subsystems.

Central Cooling with Optimization Applications

Tower Current Cap Source

Tower Current Cap Source - Provides input to the Tower Current Cap Dest Network Input located on the tower controller to indicate the current capacity of the active cooling towers.

Central Cooling with Optimization Applications

Tower Flow Available Source

Tower Flow Available Source - Provides input to the Tower Flow Available Dest Network Input located on the tower controller to indicate the available cooling tower capacity.

Central Cooling with Optimization Applications

Tower Required Flow Source

Tower Required Flow Source - Provides input to the Tower Required Flow Dest Network Input located on the chiller controller to indicate the cooling tower capacity required by the active chillers.

Central Cooling with Optimization Applications

TWR SYS-ENABLE SRC

Serves as the system enable for the cooling tower subsystem. This input exists in the controller that contains the heat exchanger subsystem.

Central Cooling with Optimization Applications

WSE CHW Current Cap Source

Waterside Economizer Chilled Water Current Capacity Source - Equals sum of the rated flows of active pumps and provides indication of the current capacity of the headered primary chilled water pumps.

Central Cooling with Optimization Applications

WSE CW Current Cap Source

Waterside Economizer Condenser Water Current Capacity Source - Equals sum of the rated flows of active pumps and provides indication of the current capacity of the headered condenser water pumps.

Central Cooling with Optimization Applications

Table 2. Central Plant Optimization 30 Network Output Modules
Name Definition
CPO-30 CLGMODE

Communicates to the CPO-30 system that the system is in mechanical cooling mode (chillers only), free cooling mode, or transitioning from one mode to another. The CPO-30 system calculates setpoints differently depending on whether the system is in mechanical cooling or free cooling mode. This output is analog with values 0, 1, 2, and 3 as indicated below:

0 - Mechanical cooling mode. The chillers are enabled and provide 100% of the cooling for the plant.

1 - Transitioning from mechanical cooling to free cooling mode.

2 - Free cooling mode. The chillers are disabled and the free cooling heat exchanger(s) provide 100% of the cooling.

3 - Transitioning from free cooling mode to mechanical cooling.