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Air Conditioner Operations and Performance
Check before operation
Turn on the power switch at least 12 hours before
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starting operation.
Make sure the earth wire is securely connected.
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Make sure the air filter is attached to the indoor unit.
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Heating performance
A heat pump system, which gathers outside heat and
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emits it into the room, is used for heating. When the
outside air temperature falls, the heating capacity of the
unit is reduced.
When the outside temperature is low, it is recommended
●
that you also use other heating equipment.
Defrosting during heating
If frost is formed on the outdoor side heat exchanger
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during heating, defrosting is automatically performed (for
approximately 2 - 10 minutes) to maintain the heating
effect.
The fan of the indoor unit is stopped during defrosting.
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Three-minute protection
The outdoor unit will not operate for approximately 3
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minutes after the air conditioner has been immediately
restarted after stopping, or the power switch has been
turned on.
This is to protect the system.
Blackout
In the case of a power failure, all operations will stop.
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To resume operations, push the ON/OFF button.
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Fan rotation of stopped units
While other indoor units operate, the fans on indoor units
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i n s t a n d - b y m o d e r o t a t e f o r s e v e r a l m i n u t e s
approximately once per hour to protect the machines.
Protective device (high pressure switch)
The high pressure switch stops the air conditioner automatically
when an excessive load is applied to the air conditioner.
If the protective device activates, the unit stops running and the
operation lamp blinks.
When the protective device activates,
are displayed on the remote control. The protective device may
activate in the following cases:
During cooling
When the air inlet or air outlet of the outdoor unit is blocked.
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When strong wind blows continuously against the air outlet of the
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outdoor unit.
During heating
When dust or dirt is excessively adhered to the air filter
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of the indoor unit.
When the air outlet of the indoor unit is blocked.
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When the protective device activates, turn off the power, remove
the cause, and then restart running.
Cooling/Heating operations of a package air conditioner
<Standard type>
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Each unit can be controlled individually. However, indoor units
connected to the same outdoor unit cannot perform cooling and
heating simultaneously.
When you attempt simultaneous operation, indoor units
performing cooling are stopped, and the
displayed on the remote control.
The indoor units performing heating continue running.
When you attempt an operation outside of the configured
settings, the
indicator is displayed on the remote control
and operation stops.
If operation is fixed to cooling or heating by the air conditioner
administrator, only the configured settings apply to the
operation.
Characteristics of heating
Air does not come out immediately after heating starts. Heated
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air comes out after 3 to 5 minutes (depending on room/outside
temperatures), after the indoor heat exchanger warms up.
When the outside temperature increases, the outdoor unit may
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stop.
and the check code
indicator is
10
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