GI-46
DUAL, TRIPLE, POKER DC Inverter : 1. General Informationi
Multi Liberty
DC Inverter
• Outline of Display Panel on Multi Liberty Low Ducted type Indoor Units (HRBU X)
OPERATION LED
When connecting the Unit to the power source, the LED starts flashing. During the air conditioner’s
operation, it stops flashing and lights up.
TIMER LED
It lights up when TIMER function is selected (air conditioner’s programmed start and/or stop).
DEF./FAN (Defrost/Preheating)
ALARM LED
MANUAL button (Emergency/Test)
To start the air conditioner in Automatic mode when the remote controller is not available, and to start
the Test mode in Cooling operation.
Buzzer
It emits a sound when a signal from IR remote control is received by the Indoor Unit.
IR signal receiver
It permits to receive signals from IR remote control.
1
2
3
4
5
6
2
3
4
1
5
6
7
MANUAL
OPERATION TIMER DEF./FAN ALARM
“OPERATION” LED (Green)
1
2
“TIMER” LED (Green)
3
“DEF/FAN” LED (Red)
4
“ALARM” LED (Red)
7
If control electronics detects the conditions required for start of Automatic Defrosting (see Section “CF:
Control Functions”, of this Service Manual), defrosting automatically starts and this LED lights up.
The LED also lights up when indoor heat exchanger’s Preheating function is activated. This occurs in
Heating mode, in order to avoid the emission of air at low temperature (anti-cold drafts prevention
function).
This LED flashes to indicate that a system malfunction has occurred. To determine the cause of
malfunction, check Error/Protection Code shown by 2-digit display on Outdoor Unit’s PCB.
Normal operation can be restored only after problem has been solved.
