SiUS12-928_B
Forced Operation
Trial Operation and Field Settings
256
2. Forced Operation
Outline
Forced operation mode includes forced cooling and forced heating. Operation mode can be
selected by the operation mode switch (SW2) on the outdoor unit. Press the forced operation [ON/
OFF] switch (SW1) on the outdoor unit to start the operation.
Detail
Item
Forced Cooling
Forced Heating
Conditions
1) The indoor unit is not abnormal, but
the indoor unit which is not in the
freezing prohibiting zone is present in
more than 1 room.
1) The indoor unit is not abnormal. The
indoor unit which is not in the peak-cut
prohibited zone is present in more than
1 room.
2) The outdoor unit is not abnormal and
not in the 3-minute standby mode.
3) The operating mode of the outdoor
unit is the stop mode.
4) The operation mode switch (SW2) on
the outdoor unit is set to the cooling
mode.
4) The operation mode switch (SW2) on
the outdoor unit is set to the heating
mode.
Start
Press the forced operation [ON/OFF]
switch (SW1) on the outdoor unit.
Operating room
All rooms:
The command is sent to all the rooms
where the transmission is normal.
Only 1 room:
The command is sent to one of the
rooms which can be operate and the
order of priority is A > B > C > D.
Other rooms operation must be
stopped.
Command
frequency
• 18 class : 42 Hz
• 24/32 class : 31 Hz
(Outdoor temperature : 2°C (35.6°F)
• 18 class : 35 Hz
• 24/32 class : 26 Hz
End
1) Press the forced operation [ON/OFF]
switch (SW1) on the outdoor unit again.
2) The operation ends automatically
after 15 minutes.
2) The operation ends automatically
after 60 minutes.
Others
The protection functions are prior to all
others in the forced operation.
2MXS18GVJU
Service monitor PCB
Operation mode
switch (SW2)
Forced operation
[ON/OFF] switch
(SW1)
(R12870)
3MXS24JVJU
4MXS32GVJU
