Hitachi RAC-E14H2, Руководство по обслуживанию

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INFORMATION
CAPABILITIES
Heating Capability
• This room air conditioner utilizes a heat pump system that absorbs
exterior heat and brings it into a room to be heated. As the ambient
temperature gets lower, heating capability will also lower. In such a
situation, the inverter work to increase compressor rpm to keep the
unit’s heating capability from decreasing. If the unit’s heating perfor-
mance is still unsatisfactory, other heating appliances should be used
to augment this unit’s performance.
• The air conditioner is designed to heat an entire room so that it may take some time before you feel warm.
Timer operation is recommended for effective preheating ahead of the desired time.
Cooling and Dehumidifying Capabilities
• If the heat present in a room exceeds the unit’s cooling capacity (for example, if there are many people in
the room or other heating appliances are used), the preset room temperature may not be reached.
CAUTION
Do not use a stove
or any other
h i g h t e m p e r a t u r e
devices in proximity
to the indoor unit.
• When fan speed, room temperature are set with the remote controller before starting manual operation and
the buttons are released, the indication of settings will go off in 10 seconds and only the operation mode
will be displayed.
• Pressing the button while the unit is in operation will let the protective circuit work so that the unit will
not operate for approximately 3 minutes.
• During heating operation, the indoor unit’s color indicator lamp may flash with no air emitted for a while.
• If you feel cold wind during heating operation with the
(HI) fan speed or want to make the unit operation
quieter after the room is heated, use of (AUTO) setting is recommended.
• With the (LOW), (SILENT) settings, the unit’s cooling capacity will lower slightly.
• With the (LOW), (SILENT) settings, the unit’s fan speed of heating operation will vary with the
operating conditions.
VARIOUS FUNCTIONS
• When the timer has been programmed, the unit will not operate even if the set time is reached unless the
unit receives a signal from the remote controller. Confirm that timer programming is complete (beep) and
the TIMER lamp of the indoor unit lights.
• If the (SLEEP) button is pressed while the ON/OFF timer is programmed, the sleep timer takes priority.
• During sleep timer operation, the fan speed sets to (SILENT) regardless of the preset speed. The
remote controller display indication will remain unchanged even with the (SILENT) setting.
TIMER PROGRAMMING/SLEEP TIMER OPERATION
PROHIBITION
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ENGLISH
REGULAR INSPECTION
PLEASE CHECK THE FOLLOWING POINTS EVERY EITHER HALF YEARLY OR YEARLY. CONTACT
YOUR SALES AGENT SHOULD YOU NEED ANY HELP.
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WARNING
WARNING
Check to see if the unit’s earth line has been con-
nected correctly.
If the earth line is disconnected or faulty, unit failure or
electric shock hazard may result.
Check to see if the mounting frame has rusted ex-
cessively or if the outdoor unit has tilted or become
unstable.
It could collapse or fall, causing injury.
AFTER SALES SERVICE AND WARRANTY
WHEN ASKING FOR SERVICE, CHECK THE FOLLOWING POINTS.
CONDITION CHECK THE FOLLOWING POINTS
• Do the batteries need replacement?
• Is the polarity of the inserted batteries correct?
• Is the fuse all right?
• Is the voltage extremely high or low?
• Is the circuit breaker “ON”?
• Is the power plug inserted?
• Do you have any power cut?
• Is the air filter blocked with dust?
• Is the set temperature suitable?
• Have horizontal air deflectors been adjusted to their correct
positions according to the operation mode selected?
• Are the air inlets or air outlets of indoor and outdoor units
blocked?
• Is the fan speed “LOW”or “SILENT”?
When it does not operate.
When it does not cool well.
When it does not heat well.
If the remote controller is not
transmitting a signal.
(Remote controller display is
dim or blank.)
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The following phenomena do not indicate unit failure.
<Operation start>
The unit is preparing to blow warm air. Please wait.
<In operation>
The outdoor unit is defrosting. Please wait.
Refrigerant flow noise in the pipe or valve sound generated when flow rate is
adjusted.
Noise generated when the unit expands or contracts due to temperature changes.
Noise generated with the indoor unit fan’s rpm changing such as operation start
times.
Noise of the motorized valve when the unit is switched on.
During heating, the operation
indicator blinks and air blow stops
Hissing or fizzy sounds
Squeaking noise
Rustling noise
WARNING
Clicking noise
Check to see if the power plug is securely inserted
into the wall socket.
If the power plug is not inserted into the wall socket
securely or becomes hot, an electric shock or fire may result.
If dust or dirt is found on the power plug, clean the plug
and insert it into the wall socket.