Coils (Heating) (RTU) - 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 Heating coil.

The selection options for Coils (Heating) are:

  • Heating

    • Heating Lockout from Outdoor Air

    • Staged Heating

      • Device Rotation

      • Gas Bonnet Switch

      • Number of Stages

        • One Stage

        • Two Stages

        • Three Stages

        • Four Stages

        • Five Stages

        • Six Stages

        • Seven Stages

        • Eight Stages

    • Hot Water or Steam

      • Proportional Output

        • Two Valves

      • Incremental Output

      • Entering Water Temperature

      • Leaving Water Temperature

      • Coil Pump

        • Pressure/Flow Boost

        • Low Temperature Circulation

        • Pump Status

      • 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

The Gas Bonnet Switch is only supported for Zone or Return Control (not DA-T Reset) when the unit has an opportunity to use it for triggering start up. This option applies when Cycle During Occupied or Intermittent Night Operation is selected.

The option for Two Proportional Valves is intended for two sequenced steam valves. This option does not support including Face & Bypass Damper or Circulation Pump controls.

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.