Attributes (Central Heating Low Temp Control) - Johnson Controls - Metasys - LIT-12011147 - Software Application - Controller Configuration Tool - 15.0

Controller Tool Help

Brand
Johnson Controls
Metasys
Product name
Controller Configuration Tool
Document type
User Guide
Document number
LIT-12011147
Version
15.0
Revision date
2022-11-18
Language
English

The following table describes the attributes used by the Central Heating Low Temp Control modules:

Table 1. Central Heating Low Temp Control Attributes

Name

Type 1

Description

Default Value

Frost Protect Differential

 

Indicates the amount by which the outdoor air temperature must rise above a setpoint to reset the condition.

1.5 °C, 3 °F

Frost Protect OA Setpoint 1

 

Provides the first outdoor air temperature setpoint. When the Outdoor Air Temperature is less than this value, the State is Low OAT 1.

4 °C, 40 °F

Frost Protect OA Setpoint 2

 

Provides the second outdoor air temperature setpoint. When the Outdoor Air Temperature is greater than this value, the State is Low OAT 2.

2 °C, 35 °F

Outdoor Air Temp

 

Indicates the outdoor air temperature.

0.0

Display Units: °C, °F

State

G

Indicates the current state of the module. This output connects to the State Selection table.

Normal

Set Name: CP Frost Protect

Zone Differential

 

Indicates the amount by which the Zone Temperature must rise above the Zone Setpoint to reset the condition.

1 °C, 2 °F

Zone Setpoint

 

Provides the zone temperature setpoint. This attribute typically connects to the Zone Heating Setpoint. When the Zone Temperature is less than this value and the Outdoor Air Temperature is less than Frost Protect OA Setpoint 2, the State is Low OAT and Low Zone.

20 °C, 68 °F

Zone Temperature

 

Indicates the zone temperature.

0.0

Display Units: °C, °F

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