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MANUAL AUTO OPERATION
Use the MANUAL AUTO operation in the event the remote controller is
lost or otherwise unavailable.
*Limited to only when receiver unit is connected.
CAUTION
Do not press the MANUAL AUTO button with wet hands or pointed ob-
jects, otherwise an electric shock or malfunction may occur.
Starting Operation
Press the MANUAL AUTO button on the operating
control panel.
The operation can be set in the following setting.
Operating mode
AUTO:
When Auto mode cannot be selected, it will
operate in the same mode as the other indoor
unit in the same system. (When other indoor
unit in the same system doesn't operate, the air
conditioner will operate in cooling.)
Fan speed
AUTO
Setting temperature
74°F (23 °C)
Stopping Operation
Press the MANUAL AUTO button on the operating
control panel.
Emergency Heat
* It is available when this function is enabled. Please consult an autho-
rized service personnel as to whether this function is eff ective.
Set emergency heat
During heating operation, press the MANUAL AUTO
button on the operating control panel.
Auxiliary heater will be primary heater, and the outdoor unit will stop.
The OPERATION Indicator Lamp (Green) blinks during emergency heat-
ing operation.(3 seconds on, 1 second off .)
Cancel emergency heat
During emergency heating operation, press the MAN-
UAL AUTO button on the operating control panel.
OPERATING TIPS
Operation and Performance
About priority state and standby state
● Multiple indoor units can be connected within the same system. De-
pending on the system, choice of operating mode are limited.
Cooling priority
When the other indoor units within the same system
state
operate in cooling or dry mode, heating cannot be
selected at the same time.
Heating priority
When the other indoor units within the same system
state
operate in heating mode, cooling and dry mode can
not be selected at the same time.
Standby state
The standby state activates when 2 or more indoor
units start up at the same time in diff erent mode.
Any indoor unit other than priority mode will wait in
standby state until priority mode changes (operation
starts as soon as priority is switched).
At this time, the OPERATION indicator lamp (green)
lights up and the TIMER indicator lamp (orange)
fl ashes. (limited to only when receiver unit is con-
nected)
Low ambient cooling
● When the outdoor temperature drops, the outdoor unit's fans may
switch to Low Speed, or one of the fans may stop intermittently.
Heating performance
● Heating mode operates on the heat-pump principle, absorbing heat
from outdoor air and transferring that heat indoors. As a result, the
operating performance is reduced as outdoor air temperature drops.
If you feel that insuffi cient heating performance is being produced, we
recommend you use this air conditioner in conjunction with another
type of heating appliance.
● Heating mode heat your entire room by recirculating air throughout the
room, with the result that some time may be required after fi rst starting
the air conditioner until the room is heated.
Microcomputer-controlled automatic defrosting
● When using the Heating mode under conditions of low outdoor air
temperature high humidity, frost may form on the outdoor unit, result-
ing in reduced operating performance. In order to prevent this kind of
reduced performance, this unit is equipped with a Microcomputer-con-
trolled automatic defrosting function. If frost forms, the air conditioner
will temporarily stop, and the defrosting circuit will operate briefl y (for
about 4 to 15 minutes).
During Automatic Defrosting operation, the OPERATION indicator lamp
(green) will fl ash (limited to only when receiver unit is connected).
Oil recovery operation
● Periodically, the oil recovery operation is performed in order to return
compressor oil to the outdoor unit.
During oil recovery operation, the OPERATION indicator lamp (green)
will fl ash (for about 10 minutes) (limited to only when receiver unit is
connected).
En-2
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