Contact Your Dealer; About The Multiple Air-Conditioner; Simultaneous Operation; Automatic Operation - Mitsubishi Heavy Industries SRR25ZM-S User Manual

Contact your dealer

■ Turn off the power switch immediately and inform your dealer in any of the following situations:
The fuse or switch blows continu-
ously.
Fuse often blows.
The TV, radio or other equipment
starts to malfunction.
When the foreign matters enter the indoor unit through the
air outlets and the dumper becomes inoperable, call your
dealer.
When abnormalities occur, turn off the power source immediately and turn it on after 3 minutes.
Restart the operation with ON/OFF button of the remote control and the abnormalities still continue.

About the Multiple Air-conditioner

Simultaneous Operation

• The air-conditioners cannot be in different operating modes at the same time, such as one unit being in the "Cool" mode and one
unit being in the "Heat" mode.
• When conducting different operations, the air-conditioner that was operated fi rst will be given priority, so the air-conditioner that is
operated after that will conduct air blowing operation.
• When you want to give priority to the air-conditioner that was started later, either stop the air-conditioner that has priority or cause
the operation type of the unit operated fi rst to match that of the unit operated second.
• When other indoor units are operating in different modes, the RUN light illuminates.
0.5 sec.
ON
OFF
0.5 sec.

Automatic Operation

• When the remote control operation switch is in the "Auto" mode the air-conditioner automatically selects either "Cool," "Dry," or "Heat"
when operation is started depending on the room temperature.
• During simultaneous operation of air-conditioner units, operation modes may be automatically changed in response to the tempera-
tures of the individual rooms; this will result in the operation of the outdoor unit being stopped. In such a case, COOL or HEAT mode
should be used instead of AUTO. (This is only relevant when more than one air-conditioner unit is being used.)
Refrigerant (oil) recovery operation
• If the all of the indoor units are not operated at the same time for an extended period, the cooling or heating performance may tem-
porarily decrease. This is in order to control the recovery of the refrigerant (oil) in the stopped indoor unit(s). At this time, the sound
of refrigerant fl owing may be heard from the stopped indoor unit(s).
The cable becomes extremely hot.
The covering of the cable is cracked.
If the power cord becomes damaged, ask your dealer or a qualifi ed engineer to
install the replacement to avoid accidents.
A switch does not activate properly.
The RUN and TIMER lights on the unit display section blink
quickly (0.5 sec. ON; 0.5 sec. OFF) and do not work.
– 27 –
CAUTION
You hear a strange noise during
operation.