–
71
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'17 • KX-T-264
Outdoor unit
CnT
Branching
control
Operation mode
(Indoor unit)
(Remote control)
10 11 12 13
Ra Rb Rc Rd
m s s s
(i) Set the indoor unit 10 as the “Master” from the remote control Ra.
(ii) Set each of indoor units 11 – 13 as the “Slave” from the remote controls Rb – Rd.
(iii) Set the operation mode at cooling for the indoor unit 10 from the remote control Ra.
⇒
The indoor unit 10 commands the cooling for the operation mode of “Slave” indoor units. It commands the cooling in
the same way also for the operation mode of “Slave” indoor units which are stopped.
When an operation mode change command for the indoor unit 10 is received from the central control device, the
command is released to the “Slave” indoor units in the same way.
(iv) Even if an operation mode change is commanded to the “Slave” indoor units 11, 12 and 13 from the remote control Rb,
Rc, Rd or the central control device, the operation mode is not changed.
(25) High power operation (RC-EX3 only)
It operates at with the setting temperature xed at 16°C for cooling, 30°C for heating and maximum indoor fan speed for 15
minutes maximum.
(26) Energy-saving operation (RC-EX3 only)
It operates with the setting temperature fixed at 28°C for cooling, 22°C for heating or 25°C for auto. When fan control in cooling/
heating thermo-OFF setting is “Set fan speed”, fan speed during thermo-OFF is changed to “Low”. (Maximum capacity is restricted
at 80%.)
(27) Warm-up control (RC-EX3 only)
Operation will be started 5 to 60 minutes before use according to the forecast made by the microcomputer which calculates
when the operation should be started in order to warm up the indoor temperature near the setting temperature at the setting time
of operation start.
(28) Home leave mode (RC-EX3 only)
When the unit is not used for a long period of time, the room temperature is maintained at a moderate leval, avoiding extremely
hot or cool temperature.
(a) Cooling or heating is operated according to the outdoor temperature (factory setting 35°C for cooling, 0°C for heating)
and the setting temperature. (factory setting 33°C for cooling, 10°C for heating)
(b) Setting temperature and indoor fan speed can be set by RC-EX3.
(29) Auto temperature setting (RC-EX3 only)
Setting temperature is adjusted automatically at the adequate temperature the center setting temperature is 24°C by correcting
the outdoor air temperature.
(30) Fan circulator operation (RC-EX3 only)
When the fan is used for circulation, the unit is operated as follows depending on the setting with the remote control.
(a) If the invalid is selected with the remote control, the fan is operated continuously during the fan operation. (mormal
fan mode)
(b) If the valid is selected with the remote control, the fan is operated or stopped when on the difference of the remote
control temperature sensor and the return air temperature sensor becomes bigger than 3°C.
(31) The operation judgment is executed every 5 minutes (RC-EX3 only)
Setting temperature Ts is changed according to outdoor temperature
This control is valid with cooling and heating mode. (Not auto mode)
(a) Operate 5 minutes forcedly.
(b) Setting temperature is adjusted every 10 minutes.
(i) Cooling mode.
Ts = outdoor temperature
－
offset value
(ii) Heating mode.
Ts = outdoor temperature
－
offset value
(c) If the return air temperature lower than 18°C in cooling or return air temperature becomes higher than 25°C in heating,
unit goes thermostat OFF.
(32) Auto fan speed control (RC-EX3 only)
In order to reach the room temperature to the set temperature as quickly as possible, the air flow rate is increased when the set
temperature of thermostat differs largely from the return air temperature. According to temperature difference between set
temperature and return air temperature, indoor fan tap are controlled automalically.
・
Auto 1: Changes the indoor fan tap within the range of Hi ↔ Me ↔ Lo.
・
Auto 2: Changes the indoor
fan tap within the range of P-Hi ↔ Hi ↔ Me ↔ Lo.
(33) Indoor unit overload alarm (RC-EX3 only)
If the following condition is
at 30 minutes after starting operation, RC-EX3 shows maintenance code "M07" and the
signal is transmitted to the external output (CnT2-5).
・
Cooling, Dry, Auto(Cooling) : Indoor air temperature = Set room temperature by remote control + Alarm temperature difference
・
Heating, Auto(Heating) : Indoor air temperature = Set room temperature by remote control - Alarm temperature difference
Alarm temperature difference is selectable between 5 to 10°C.
If the following condition is satisfied or unit is stopped, the signal is disappeared.
・
Cooling, Dry, Auto(Cooling) : Indoor air temperature = Set room temperature + Alarm temperature difference -2°C
・
Heating, Auto(Heating) : Indoor air temperature = Set room temperature - Alarm temperature difference +2°C
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