Please read the "Safety Precaution" carefully before operating the unit to ensure correct usage of the unit.
Pay special attention to signs of "
Warning" and "
Caution". The "Warning" section contains matters which,
if not observed strictly, may cause death or serious injury. The "Caution" section contains matters which may
result in serious consequences if not observed properly. Please observe all instructions strictly to ensure safety.
The sign indicate the following meanings.
Please keep this manual after reading.
PRECAUTIONS DURING INSTALLATION
Do not reconstruct the unit.
Water leakage, fault, short circuit or fire may occur if you reconstruct the
unit by yourself.
Please ask your sales agent or qualified technician for the installation of
your unit. Water leakage, short circuit or fire may occur if you install the unit
Please use earth line.
Do not place the earth line near water or gas pipes, lightning-conductor, or
the earth line of telephone. Improper installation of earth line may cause
A circuit breaker should be installed depending on the mounting site of the
unit. Without a circuit breaker, the danger of electric shock exists.
Do not install near location where there is flammable gas. The outdoor unit
may catch fire if flammable gas leaks around it.
Please ensure smooth flow of water when installing the drain hose.
PRECAUTIONS DURING SHIFTING OR MAINTENANCE
PRECAUTIONS DURING OPERATION
Avoid an extended period of direct air flow for your health.
Should abnormal situation arises (like burning smell), please stop operating the unit
and turn off the circuit breaker. Contact your agent. Fault, short circuit or fire may
occur if you continue to operate the unit under abnormal situation.
Please contact your agent for maintenance. Improper self maintenance may cause
electric shock and fire.
Please contact your agent if you need to remove and reinstall the unit. Electric
shock or fire may occur if you remove and reinstall the unit yourself improperly.
Do not put objects like thin rods into the panel of blower and suction side
because the high-speed fan inside may cause danger.
During thunder storm, disconnect and turn off the circuit breaker.
Do not use any conductor as fuse wire, this could cause fatal accident.
Make sure to connect earth line.
Indicates the instructions that must be followed.
The sign in the figure indicates prohibition.
PRECAUTIONS DURING OPERATION
Do not attempt to operate the unit with wet hands, this could cause fatal
When operating the unit with burning equipments, regularly ventilate the
room to avoid oxygen insufficiency.
Do not direct the cool air coming out from the air-conditioner panel to face
household heating apparatus as this may affect the working of apparatus
such as the electric kettle, oven etc.
Do not place plants directly under the air flow as it is bad for the plants.
Please ensure that outdoor mounting frame is always stable, firm and
without defect. If not, the outdoor unit may collapse and cause danger.
Do not splash or direct water to the body of the unit when cleaning it as this
may cause short circuit.
When operating the unit with the door and windows opened, (the room humidity is always above
80%) and with the air deflector facing down or moving automatically for a long period of time,
water will condense on the air deflector and drips down occasionally. This will wet your furniture.
Therefore, do not operate under such condition for a long time.
If the amount of heat in the room is above the cooling or heating capability of the unit (for
example: more people entering the room, using heating equipments and etc.), the preset room
temperature cannot be achieved.
Do not climb on the outdoor unit or put objects on it.
Please switch off the unit and turn off the circuit breaker during cleaning, the
high-speed fan inside the unit may cause danger.
Turn off the circuit breaker if the unit is not to be operated for a long period.
The product shall be operated under the manufacturer specification and
not for any other intended use.
Do not put water container (like vase) on the indoor unit to avoid water
dripping into the unit. Dripping water will damage the insulator inside the unit
and causes short-circuit.
Do not use any aerosol or hair sprays near the indoor unit. This chemical
can adhere on heat exchanger fin and blocked the evaporation water flow
to drain pan. The water will drop on tangential fan and cause water splashing
out from indoor unit.
NAMES AND FUNCTIONS OF EACH PART
To prevent dust from coming into the indoor unit.
(Refer page 25)
Indoor unit indicators
Light indicator showing the operating condition.
(Refer page 9)
Horizontal deflector q Vertical deflector
(Refer page 20)
Send out operation signal to the indoor unit. So as to
operate the whole unit.
(Refer page 10)
RAK25NH4, RAK35NH4, RAK50NH4
MODEL NAME AND DIMENSIONS
INDOOR UNIT INDICATORS
Use this switch to start and stop when the remote controller does not work.
By pressing the temporary switch, the operation is done in automatic mode.
This figure shows the opening condition of
front panel. Refer to page 24 in relation to
how to open or close the front panel.
When the device is operated for a total of about 200
hours, the FILTER lamp lights indicates that it is time to
clean the filter. The lamp goes out when the POWER
SWITCH set to OFF and ON again.
This lamp lights during operation.
The OPERATION LAMP flashes in the following cases
(1) During preheating
For about 23 minutes after starting up.
(2) During defrosting
Defrosting will be performed about once an hour
when frost forms on the heat exchanger of the
outdoor unit, for 510 minutes each time.
This lamp lights when the timer is working.