Reliability (Hx Selector) - 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

The Reliability of all modules reflects the Reliability of its Outputs. If any Output Reliability is not reliable, then the module Reliability must not be reliable.

During Commissioning, the Heat Exchanger Selector primitive checks the value of the Device nn Capacity, Rated CW Flow (i), and Rated CHW Flow (i) properties of all devices with indexes less than or equal to Number of Devices. If the Device nn Capacity is less than or equal to zero or if either of the flows is less than zero, then the primitive does not execute and its reliability is Unreliable: Invalid Configuration.

If you attempt to change any of these properties to an invalid value, the module rejects the write and sends a corresponding write error.

The module checks the values of the following attributes, according to the Control Mode and the CW headered/dedicated attributes as follows:

Table 1. Hx Selector Reliability

Control Mode

CW Header/Dedicated

CHW Header/Dedicated

Required Properties

Any

Any

Any

Rated Capacity

Rated CHW Flow

CHW Min Flow

Building Load

Any

Any

Rated Current Power

Any

Headered

Any

Rated CW Flow

CW Min Flow