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Pioneer WYF-25 Series Installation & User Manual page 13

Ductless mini split system air conditioner / heat pump

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Operating Instructions
COOLING Mode
Cooling mode allows the air conditioner
to cool the room while also reducing
the humidity of the air in the room.
To put the system into cooling mode,
press the
button until the
appears on the remote's display.
The TEMP – and + buttons can then be used to
set a temperature lower than that of the room.
Note: In cooling mode, be sure to avoid keeping the
vertical louver at too sharp of a downward angle,
which can lead to condensation buildup and dripping.
HEATING Mode
Heating mode allows the air conditioner
to heat the room by reversing the cooling cycle.
To put the system into heating mode,
press the
button until the
appears on the remote's display.
The TEMP – and + buttons can then be used to
set a temperature higher than that of the room.
Upon enabling heat mode, the indoor unit will
take between 2-5 minutes for pre-heating, after
which the unit will begin blowing warm air.
NOTE
In heating mode, the appliance will periodically enter a defrost cycle, which is essential in order to clean frosting
off the condenser and recover heat exchange capability. This process is normal and lasts for 2-10 minutes.
During defrosting, the indoor unit's fan will cease operation. After the cycle is completed, the system will resume
its normal heat mode operation automatically.
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Page 13

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