Hitachi RUA-NP10ATS, Instruction Manual

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HITACHI SELF-CONTAINED AIR CONDITIONERS
OPERATION INSTRUCTIONS
Models
：
： ：
：
RUA-NP4ATS RUA-NP5ATS RUA-NP6ATS
RUA-NP8ATS RUA-NP9ATS RUA-NP10ATS
Starting Procedures
1. Switch ON the main power source to the unit.
2. Set the operation switch of the room thermostat
to the desired operation position.
FAN – Ventilation Operation
COOL – Cooling Operation
3. Set the thermostat knob of the room thermostat
to the desired temperature.
4. Set the system switch of the room thermostat to
the ON positions.
Stopping Procedures
1. Set the system switch to the OFF position.
2. Switch OFF the main power source to the unit.
Troubleshooting
Unit Does Not Start
1. Is the main power source switch to the unit ON?
2. Is the main fuse normal?
3. Is the phase of main power source right?
Poor Cooling Operation
1. Are there any obstacles, which hamper sufficient
air to the condenser?
2. Check to ensure that the thermostat is set at the
desired position.
3. Check the air filter for clogging.
4. Are there any obstacles, which hamper free air
flow to the room thermostat?
Please contact your service shop if the
trouble is still not solved.
Maintenance
1. Clean or replace the filter.
2. Clean the cabinet with cleaner.
3. Clean the condensate drain pan and the drain
piping.
4. Clean the condenser. It is recommended that a
specialist be contacted for this type of work.
5. Check for abnormal sounds and vibration. Stop
the unit and contact your service shop, if
observed.
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