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74
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'11 • KX-T-166
(5)
Energy saving mode control
This control is effective, when [P04] of 7-segment display is set 000, 040, 060, 080 (except OFF)
Control contents
(i) Compressor upper limit speed is changed according to the setting ratio.
(ii) Compressor upper limit speed is obtained by multiplying the rating speed (at cooling/heating) with the setting ratio
as follows.
OFF: Normal (Factory setting)
80%: 80% of rating compressor upper limit speed
60%: 60% of rating compressor upper limit speed
40%: 40% of rating compressor upper limit speed
0%: 0% of rating compressor upper limit speed (stop)
(iii) Except 0% of energy saving ratio, the following controls take precedence over this control.
• 4-way valve switching safeguard
• Defrosting control
• Oil return control
• During the pump down control for removal of the unit
• Pump down control at start/stop
(6)
Forced cooling/heating operation
(i)
With this control, SW3-7 on the outdoor PCB is turned ON and CnG1 (equipped with short circuit pin) is shorted or opened
so as to forcibly determined whether the indoor unit is operated for cooling or heating.
(ii) If any operation mode other than the forcible mode is commanded from indoor unit, the mode unmatch message is displayed
on the remote controller or others and operation enters in the FAN mode.
SW3-7
CnG1
Operation
ON
Open
Cooling only
Close
Heating only
(7)
Emergency stop control
When one of indoor units receives the emergency stop signal from optional device like as refrigerant leakage detector and the
information is transmitted to the outdoor unit, the outdoor unit stops operation and an emergency stop error is transmitted to all
indoor units running.
Make the emergency stop effective by remote controller indoor function setting.
(i)
When it receives the “Emergency stop” command from the indoor unit, it makes all stop by error.
(ii)
It shows the Error display “E63” and transmits the “Emergency stop” command to all indoor units.
(iii)
If the “Emergency stop reset” command is received from the indoor unit, the “Emergency stop reset”
command is transmitted to all indoor units.
