Part
2. Functional Specifications
DCM014A51
Design Guide
27
*3: Only available with the following indoor units: FXEQ_P, FXFQ_T, FXTQ_TA, FXUQ_P, FXSQ_TA, and
CXTQ_TA.
*4: When the Out_Of_Service property is TRUE, the setting items (Setback Temperature (Cool/Heat),
Min Setpoint Differential (Cooling & Heating) that are mapped to the object are disabled.
Therefore, a value set on the indoor unit management point remains unchanged even if
Present_Value is changed.
*5: The Out_Of_Service property of "Max Cooling Setpoint" and "Min Cooling Setpoint" indicates the
upper and lower limit of the Cool Setpoint change along with the Present_Value.
(When the Out_Of_Service property of either object is changed from FALSE → TRUE, the
Out_Of_Service property of the other object also changes from FALSE → TRUE.)
The "Max Heating Setpoint" and "Min Heating Setpoint" which indicates the upper and lower limit
of the Heat Setpoint also behaves in the same way.
When the Out_Of_Service property is TRUE, the setting items (Max and Min Setpoint) mapped to
an object are disabled, so a value set for the indoor unit management point remains unchanged
even when the Present_Value changes.
4.3 System Control Device
1. The instance numbers of the Object IDs are mapped to the system control settings on the iTM
as shown in the table below.
2. Each of the BO and MV object types set the text shown in the table below for the Description
Property in accordance with the value of Present_Value.
Instance
No.
Object_Name
Type
Inactive
Active
Remarks
Text-1
Text-2
Text-3
Text-4
Text-5
Text-6
Text-7
1
Enable iTM Schedule
Operation
BO
Disable
Enable
2
Enable iTM
Auto-Changeover
Operation
BO
Disable
Enable
3
Timed Override
Minutes
MV
30
60
90
120
150
180
4
System Forced Off
BO
Inactive
Active
4.4 Restrictions
1. When a Present Value (PV) is set by the BMS, the BACnet® Server in
iTM
updates the PV and
keeps the previous PV.
Object Name
Number of valid digits
Celsius
Fahrenheit
“Room Temperature”
One decimal place
One decimal place
"Occ Cooling Setpoint" "Occ Heating Setpoint"
"Unocc Cooling Setpoint" "Unocc Heating Setpoint"
"Max Cooling Setpoint" "Min Cooling Setpoint"
"Max Heating Setpoint" "Min Heating Setpoint"
One decimal place
Integer
"Min Setpoint Differential (Cooling & Heating)”
Integer
Integer