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191
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'17 • SCM-T-225
(32) Auto temp. 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.
(33) 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.
(34) 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.
(35) 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 PHi ↔ Hi ↔ Me ↔ Lo.
(36) IU overload alarm (RC-EX3 only)
If the following condition is satisfied at 30 minutes after starting operation, RC-EX3 shows maintenance code "M07" and the
signal is transmitted to the external output (CnT-2-5).
・
Cooling, Dry, Auto(Cooling) : Indoor air temperature = Set room temperature by remote c 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 tempe Alarm temperature difference -2°C
・
Heating, Auto(Heating) : Indoor air temperature = Set room temperature - Alarm temperature diff2°C
(37) Peak-cut timer (RC-EX3 only)
Power consumption can be reduced by restricting the maximum capacity.
Set the [Start time], the [End time] and the capacity limit % (Peak-cut %).
・
4-operation patterns per day can be set at maximum.
・
The setting time can be changed by 5-minutes interval.
・
The selectable range of capacity limit % (Peak-cut %) is from 0% to 40-80% (20% interval).
・
Holiday setting is available.
