Part
2. Functional Specifications
54
Design Guide
DCM014A51
5. Room Temperature
Member number:
5
Object name:
Room Temperature
Object type:
Analog Input
Description:
Monitors the room temperature received from the indoor unit.
Present_Value property:
Room temperature detected by the indoor unit (or remote controller).
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 both degrees Celsius and
degrees Fahrenheit.
3. If
the indoor unit
is not equipped with a room temperature sensor, the Present_Value
property is 0.0°C or
0.0°F.
4. If the room temperature sensor is disconnected, the Reliability property changes to
NO_SENSOR while the FAULT flag of the Status_Flags property changes to TRUE.
The Present_Value property retains the last value.
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 changes 1°C/1°F or more from
the value of the Present_Value property that triggered the previous COV notification.
6. Occ Cooling Setpoint
Member number:
6
Object name:
Occ Cooling Setpoint
Object type:
Analog Value
Description:
Monitors/configures the indoor unit setpoint (cool).
Present_Value property:
Setpoint (cool) 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.