Part
2. Functional Specifications
DCM014A51
Design Guide
55
7. Occ Heating Setpoint
Member number:
7
Object name:
Occ Heating Setpoint
Object type:
Analog Value
Description:
Monitors/configures the indoor unit setpoint (heat).
Present_Value property:
Setpoint (heat) used by the indoor unit.
Notes:
1. The unit is degrees Celsius (°C) or degrees Fahrenheit (°F), depending on the
iTM
system
settings.
2. The number of significant digits is up to one decimal place for degrees Celsius and zero
decimal places for degrees Fahrenheit.
3. A setpoint has an upper/lower limit value. If a value outside that range is specified, it is
corrected to the upper/lower limit value 16–32°C/60–90°F.
4. Relinquish_Default property is fixed to 22.2°C/72°F.
5. When subscribed to COV notification, the COV_Increment property is fixed to 1.0 and
cannot be changed.
COV notification is issued when a change of 1°C/1°F or more is detected.
The next COV notification is issued when the temperature further changes for 1°C/1°F or
more from the value of the Present_Value property that triggered the previous COV
notification.
8. Unocc Cooling Setpoint
Member number:
8
Object name:
Unocc Cooling Setpoint
Object type:
Analog Value
Description:
Monitors/configures the indoor unit setback temperature (cool).
Present_Value property:
Setback temperature (cool) used to prevent space over heating
during the unoccupied period.
Notes:
1. The unit is degrees Celsius (°C) or degrees Fahrenheit (°F), depending on the system
settings.
2. The number of significant digits is up to one decimal place for degrees Celsius and zero
decimal places for degrees Fahrenheit.
3. The settable values are fixed by the system (16.7 to 35.0 [°C] / 62 to 95 [°F]). If a value
outside the range is written, it is corrected to the upper/lower limit value.
4. Value is associated with the cooling setback setpoint of the
iTM
.
5. Out_Of_Service property
If TRUE:
The setback temperature (cool) is disabled.
If FALSE: The setback temperature (cool) is enabled.
• The following table shows the corresponding difference between the Out_Of_Service
property status and the response of the Present_Value and setback temperature
(cool) on the indoor unit to a command from the BMS.
