Attributes (SummerWinter Mode Determination) - Johnson Controls - Metasys - LIT-12011147 - Software Application - Controller Configuration Tool - 13.1

Controller Tool Help

Brand
Johnson Controls
Metasys
Product name
Controller Configuration Tool
Document type
User Guide
Document number
LIT-12011147
Version
13.1
Revision date
2019-12-04
Language
English

Table 1 describes the attributes used by the SummerWinter Mode Determination module.

Table 1. SummerWinter Mode Determination Attributes

Name

Type 1

Description

Default Value

State

G, V

Indicates the current effective status of Summer Winter Mode Determination.

Set Name: Summer/Winter

SUMWINSWO-DIFF (Switchover Diff)

 

Represents the switchover differential. To reverse from winter to summer, the Switchover Process Variable must be less than the setpoint minus this attribute value.

22 °C, 40 °F

SUMWINSWO-SP (Switchover Setpoint)

 

Compares the supply water temperature with this setpoint to determine whether the water is warm or cold. This input is the switchover setpoint.

38 °C, 100 °F

Switchover Process Variable

 

Indicates the supply water temperature. If the water is hot, then the unit must operate in the winter mode, and if the water is cold, the unit must operate in the summer mode. Switchover Process Variable is typically connected from a hardware input.

15 °C, 60 °F

1 C - Configuration Mode Only, G - Default Element (Generated State, if applicable), SC - Simulation and Commissioning Modes Only, V - Calculated Value (Outputs)