Mitsubishi Electric PFAV-P250VM-E Service Manual page 112

[ VIII Control ]
(2) Outdoor unit (cooling and heating modes)
"PLEASE WAIT" blinks on the
remote controller.
1. Protection function self-holding cancelled.
2. LEV1 fully closed.
1. 72C OFF
2. Inverter output 0Hz
3. Fan stop
4. All solenoid valves OFF
For about 3 minutes after power on, search for the indoor unit address, for the remote controller address,
*Note 1.
and for the group information will start. During this time, "PLEASE WAIT" blinks on the display of the remote
controller. When the indoor unit to be controlled by the remote controller is missing, "PLEASE WAIT" keeps
blinking on the display of the remote controller even after 3 or more minutes after power on.
The system may go into the error mode on either the indoor unit or the outdoor unit side. The outdoor stops only
*Note 2.
when all of the connected indoor units are experiencing problems. The operation of even a single indoor unit will
keep the outdoor unit running. The error will be indicated on the LED display.
The outdoor unit operates according to the operation mode commanded by the indoor unit.
*Note 3.
HWE10190
Start
Breaker
turned on
YES
Indoor units
registered to the
remote controller
NO
YES
NO
Operation
command
YES
Operation
mode
*Note 2
Error mode
NO
72C ON
*Note 3
Operation
mode
Refer to Cooling Refer to heating
Operation 2-(1).
Operation 2-(2).
Operation command to indoor unit To 1 .
NO
*Note 1
2
From indoor unit
Cooling, Heating
YES
- 103 -
Normal operation
Error
Unit in the stopped state
Error stop
Error display on the
outdoor unit LED
Self-holding of
protection function
Error command to
indoor unit
GB