45
Operation
(Reference)
System Setup
Menu Item
Description
Heating
Optimization
Setting
With the air conditioners made by Daikin (Buil-Mul or Building multi
indoor unit), when the thermo-switch is turned off (the compressor is
off) during heating operation, the fan does not stop. (It continues to
run at the minimum speed, or at the speed set in the heating mode.)
Also, because a slight amount of coolant continues to circulate at
this time, the room temperature may rise slightly by the fan operation
described above.
Therefore, this function starts / stops the air conditioner based on the
room temperature (intake air temperature) and the set temperature
during heating operation to prevent the temperature rise.
<Overview of Function>
• Operation interruption control
When the room temperature for the air conditioner in heating operation becomes
higher than the set temperature + 1°C, the air conditioner is stopped. However,
because the stop control (operation interruption) by this function is the optimum
control for turning off of the thermo-switch during heating operation, the system
regards this status as in operation, and the screen display on the unit remains
“In-operation.”
∗After the unit is interrupted by this function, it restarts when the specified
conditions are met. Therefore the user’s explicit stop command is effective.
• Operation restart control
When the room temperature for the air conditioner under the stop control by this
function (during heating operation interruption) becomes lower than the set
temperature – 1°C, the air conditioner is restarted.
1 : Controlled air conditioners
• This control is performed for each individual air conditioner. This function can be
set to enabled / disabled for each air conditioner.
• Only the air conditioners with this function set to enabled becomes the subject
for the control.
• For the indoor units under this control, a mark showing the automatic control is
displayed on the monitoring screen.
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