Coils (Common Heating-Cooling) (OASD) - 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

These selections provide the logic to control a Common Heating-Cooling (2-pipe) coil.

The selection options for Coils (Common Heating-Cooling) are:

Common Heating-Cooling

  • Condensate Alarm: This option adds a binary input for a condensate sensor that stops the cooling when activated.
    • Shutdown on Alarm: This option places the system in shutdown mode when the condensate alarm is active.
  • Proportional Actuator

  • Incremental Actuator

  • Two Position Actuator

    • Face and Bypass Damper

      • Proportional Actuator

      • Incremental Actuator

  • Entering Water Temperature

  • Leaving Water Temperature

  • Coil Pump

    • Pressure/Flow Boost

    • Low Temperature Circulation

    • Both Pressure/Flow & Low Temp Circulation: This option combines the existing two sequences to start the pump either when the valve command exceeds zero or when the outdoor air temperature drops below the setpoint.
    • Dual Pumps: This option adds a second coil pump to operate in a duty/standby configuration.
      • Rotate to Balance Runtime: When you select this option with Dual Pumps, the application automatically shifts the lead to the pump with the lowest operating hours.
    • Pump Status

      • Loss of Status Strategy

        • Automatic Restart

        • Manual Restart

          • Unit Reset Switch (BI)

    • Alarm Management

      • Lockout Switch

      • Motor Overload Tripped

        • Automatic Restart

        • Manual Restart

          • Unit Reset Switch (BI)

    • Blocking Protection: This option provides monitoring of the command to a motor (typically a pump). If the command is off for an extended period of time (for example, 7 days), the motor starts for a short time (for example, 30 seconds). This feature prevents blocking (that is, it prevents the motor from seizing up).

  • Summer/Winter Switchover Strategy

    • Local Switch (BI)

    • Network

    • Supply Water Temperature

  • Shutdown Strategy

    • Off

    • Remain in Control

    • Protect Coil Based on Outdoor Air Temperature

    • User Defined Position

  • Loss of Airflow Strategy

    • Off

    • Remain in Control

    • Protect Coil Based on Outdoor Air Temperature

    • User Defined Position

  • Unreliable Sensor Operation

    • Off

    • Hold

    • Protect Coil Based on Outdoor Air Temperature

    • User Defined Position

Common Heating-Cooling cannot be selected if either Cooling or Reheat is selected.

The Remain in Control Shutdown Strategy is available only when a proportional valve is selected (with either proportional or incremental actuator).

The Loss of Airflow Strategy options are available only when the Automatic Restart option for the Supply Fan Status Loss of Airflow Strategy is selected.