User’s Manual EM11A015B
intelligent Touch Manager
155
Relationship with Other Functions
1.
Relationship with Automatic Control Functions
Function
Operation when Setback (Low or High) is active in the indoor unit
Schedule
You can set up Setback as action for the indoor unit.
Pre-Cool/
Pre-Heat
Pre-Cool/Pre-Heat is unavailable when the indoor unit is in Setback status.
If Setback is ordered after the indoor unit has been operating in Pre-Cool or Pre-
Heat mode, the indoor unit is put into setback status.
Interlocking Control
[Input]
Setback active
⇒
Considered ON
Setback inactive
⇒
Considered OFF
[Output]
You can set up Setback (Low or High) as action for the indoor unit.
Emergency Stop
An indoor unit can be immediately stopped by Emergency Stop even if Setback is
active.
Auto Changeover
The Auto Changeover function also works when Setback is active.
However, if Differential is set to 0°C for Auto Changeover, the 1°C Relative Setup
Setpoint or –1°C Relative Setback Setpoint may not work even if set because the
Auto Changeover temperature is setpoint ± 1.5°C.
Furthermore, since a 30 minutes guard timer is set up to prevent hunting, the
function may also not work even if a higher value than the Relative Setback Setpoint
or Relative Setup Setpoint is set.
Temperature Limit
Since Temperature Limit is a function that works when the indoor unit is stopped, it
does not interfere with the Setback function.
Sliding Temperature
For both Setback Low and Setback High, the setback temperature is changed in
accordance with the change in the setpoint by the Sliding Temperature function.
The following expressions for calculating the setback temperatures are used both
before and after the setpoint is changed by the Sliding Temperature function.
Setup temperature = Se Relative Setup Setpoint
Setup temperature = Setpoint – Relative Setback Setpoint
HMO
The HMO function does not work when Setback is active.
Timer Extension
If Timer Extension is enabled, the indoor unit is stopped or put into Setback Inactive
depending on its operational status after the time set by the Timer Extension function
has elapsed.
2.
Relationship with Data Management Functions
Function
Operation when Setback (Low or High) is active in the indoor unit
Power Proportional
Distribution
When Setback active
⇒
Power is proportionally distributed considering the indoor
unit is operating.
When Setback inactive
⇒
Power is proportionally distributed considering the indoor
unit is stopped.
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