Rotenso J100Wi, Service Manual

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LCAC R32 Series
88 Service manual
preset On Time.
• The timer does not change the unit operation mode. If the unit is off now, it does not start up immediately after
the “timer off” function is set. When the setting time is reached, the timer LED switches ioff and the unit running
mode remains unchanged.
• The timer uses relative time, not clock time.
1.3.7 Sleep Mode
• The sleep function is available in cooling, heating or auto mode.
• The operational process in sleep mode is as follows:
When cooling, the temperature rises 1°C (to not higher than 30°C) every hour, 2 hours later the temperature
stops rising and the indoor fan is fixed to low speed.
When heating, the temperature decreases 1°C (to not lower than 17°C) every hour, 2 hours the temperature stops
decreasing and the indoor fan is fixed at low speed. (Anti-cold wind function takes priority).
• Sleep mode lasts a maximum of 7 hours. After 7 hours, the unit does not switch off., but for console, the unit
switches off.
• The timer uses relative time, not clock time.
1.3.8 Auto-Restart Function
The indoor unit has an auto-restart module that allows the unit to restart automatically. The module automatically
stores the current settings (not including the Swing setting) and, in the case of a sudden power failure, will restore
those setting automatically within 3 minutes after power returns.
1.3.9 Drain Pump Control (For Duct and Cassette)
• Use the water-level switch to control drain pump.
• The system checks the water level every 5 seconds.
• When the A/C operates in cooling (including auto cooling) or forced cooling mode, the pump begins running
immediately and continuously until cooling stops.
• If the water level increases up to the control point, the LED displays an alarm code and the drain pump opens
and continually monitors the water level. If the water level falls and LED alarm code is no longer displayed
(drain pump close delay is 1 minute), the unit goes back into its last mode. Otherwise, the entire system
(including the pump) stops and the LED displays an alarm again after 3 minutes.
1.3.10 Follow Me(Optional)
If you press “Follow Me” on the remote, the indoor unit will beep. This indicates the follow me function is active.
Once active, the remote control will send a signal every 3 minutes, with no beeps. The unit automatically sets the
temperature according to the measurements from the remote control.
The unit will only change modes if the information from the remote control makes it necessary, not from the unit’s
temperature setting.
1.3.11 Outdoor Unit Point Check Function(Excluding 12K&18K)
A check switch is included on the outdoor PCB.
Push SW1 to check the unit’s status while running. The digital display shows the following codes each time the SW1
is pushed.
PART 5. ELECTRICAL CONTROL SYSTEM