User`s manual

FOR PREPARATION OF HEATING
(
“HOT KEEP”
)
WHEN THE CHECK INDICATION LAMP
(
RED
)
FLICKERS
WHEN FILTER SIGN IS INDICATED
■ The air-conditioner is in abnormal condition.
●
The air-conditioner stops at the same time when the check display lamp
begins to flicker.
●
The error code on the setting temperature display area, all other indica-
tion lamps and the displays go off.
■ Contact the dealer from which you have purchased to inform [Error
code], [Status of failure], [Type of air-conditioner] and [Model name
of unit].
●
Press ON/OFF switch to stop the unit.
When the accumulated operation hour reaches 360 hours, the filter sign is
indicated to inform the cleaning time of air filter.
■ When the filter sign is indicated, clean the air filter.
See page 7.
●
After the cleaning is finished, press the reset switch of the filter to make
the filter sign no-indication. The accumulated operation time is reset.
Error code
[ ~]
CHECK
FAN
SPEED
AUTO
SWING
TIMER
SET
MODE
TEMP
TIME
E
FILTER
RESET
I
E
CHECK
FAN
SPEED
AUTO
SWING
TIMER
SET
MODE
TEMP
TIME
SE T TEMP
°C
HI
FAN
°C
REMOTE
COOL
FILTER
RESET
I
“HOT KEEP” is displayed in the following cases.
For the following cases, “HOT KEEP” is displayed on the indication board.
●
When heating is started:
In order to prevent blowing out of cool wind, the indoor unit fan is stopped according
to the room temperature which heating operation is started. Wait for approx. 2 to 7
minutes, and the operation will be automatically changed to the ordinary heating
mode.
●
Defrosting operation (in the heating mode):
When it is liable to frost, the heating operation is stopped automatically for 5 to 10
minutes once per approx. one hour (Blowing is stopped for both indoor and outdoor
unit.), and defrosting is operated. After defrosting operation is completed, operation
mode is automatically changed to ordinary heating operation.
●
When the room thermostat is actuated:
When room temperature increases and room temperature controller actuates, the fan
speed is automatically changed to LO.
When room temperature decreases, air conditioner automatically changes over to
ordinary heating operation.
During “HOT KEEP”
is displayed, a micro-
computer controls
the quantity of air
blow to prevent
blowing out of cool
wind.
For inspection and maintenance
The capacity of air conditioner will decrease by contamination of inside of unit when it is used for about three years
although depending upon the circumstances under which it is used, and so in addition to the usual maintenance
service, special inspection /maintenance service is necessary. It is recommended to make a maintenance contract
(charged) by consulting your sales dealer.
Check the following points for safe and comfortable use of your air conditioner.
Installation is the dealer’s responsibility; do not attempt to do it yourself.
Don’t install the air conditioner near
a place where inflammable gas may
leak.
This may cause an explosion (ignition) .
Install the unit in a well ventilated
place.
Any obstacles may reduce the capacity or in-
crease the noise.
Install the air conditioner on a firm
foundation that can well support its
weight.
If you don’t, this may cause vibration or noise.
Select a place where the neighbors
are not inconvenienced by hot air or
the noise.
It is advisable not to install the air
conditioner in one of the following
places, as this may cause malfunction-
ing. If, however, there is no other
choice, consult your dealer.
●
A place generating corrosive gases (spa
area etc.).
●
A place exposed to sea breeze (seaside etc.).
●
A place exposed to dense soot or smoke.
●
A place with excessively high humidity.
●
A place near equipment radiating electro-
magnetic waves.
●
A place with excessively wide voltage
variation.
You must take snow protection
measures if the outside unit is
blocked by snow.
Consult your dealer for details.
HAS THE UNIT BEEN INSTALLED CORRECTLY?
Electrical works
The electrical works must be burden on the authorized engineer with qualification for electrical works and ground-
ing work, and the work must be conducted in accordance with electric equipment technical standard.
■ The power source for the unit is to be of exclusive use.
■ An earth leakage breaker should be installed. (This is necessary to prevent electric shock.)
■ The unit must be grounded.
■ Is the remote control switch properly installed?
●
In case of open wiring, is it fixed by the attached screw?
●
Is the remote control cord fixed by the attached remote control clamp?
●
Is it installed at the height where children can not reach.
Suitable installation position
Regarding the heating operation
●
Heat pump type heating
Heat pump type heating means to heat the indoor air by utilizing the refrigerant to pick up the heat in the
outdoor air.
●
Defrosting operation
When heating the indoor air with the heat pump type heating, frost will accumulate on the air inlet of the outdoor
unit as the outdoor temperature drops. Since the accumulated frost reduces the heating efficiency, the operation
is automatically switched to the defrosting mode. During the defrosting operation, the blowers on the both the
indoor and the outdoor units are stopped and the “HOT KEEP” message is displayed on the indication board.
●
Outdoor air temperature and heating capacity
During the air conditioning by the heat pump type heating, the heating capacity drops along with the drop of the
outdoor air temperature.
Therefore, it is necessary to operate an additional heating equipment when the outdoor air temperature dropped
excessively.
●
Necessary time to raise the indoor air temperature
Air conditioning by the heat pump type heating takes time a little longer because the entire air in a room is
heated by circulating hot air.
You should start the heating operation sufficiently earlier especially in a very cold morning.
9