44
Operation
(Reference)
System Settings
Menu Item
Description
Temperature
Limit
r
: Precautions for the use of this control
The operation modes are switched over automatically with this control. Therefore, if
the air conditioners are not cooling / heating-free machines, and when an indoor unit
without cooling / heating selection right is to be controlled, be sure to register an
indoor unit with cooling / heating selection right in the same cooling system into the
same room temperature upper / lower limit group.
If the control is performed with a wrong setting of room temperature
upper / lower limit control group as shown in the figure below, the
following unexpected control will be performed.
As shown in the figure above, if an indoor unit (address 1-02) not having the cooling /
heating selection right is not registered into the same room temperature upper / lower
limit control group with an indoor unit having cooling / heating selection right in the
same cooling system, the operation of the address 1-02 will be as follows.
[Actions related to operation mode]
When the room temperature of the group 1 rises, the operation mode of the group 1 is
switched to cooling operation by this control, and the automatic operation continues.
At this time, only the operation mode of the indoor unit 1-02 changes into cooling
mode, and operates in the mode different from other indoor units.
→
The operation mode will be determined by Group 1.
Outdoor
unit
Outdoor
unit
Has right to select
cooling or heating
Does not have right
to select cooling or
heating
Does not have right
to select cooling or
heating
Automatic cooling / heating
switch group 1
Automatic cooling / heating
switch group 2
1-00
1-01
1-02
1-03
1-04
1-05
Operation mode : Heating, set
temperature 20
°
C
Operation mode : Heating, set
temperature 23
°
C
Has right to select
cooling or heating
Does not have right
to select cooling or
heating
Does not have right
to select cooling or
heating
82
See page
Oper
ation
