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PRODUCT FEATURES
This top-quality appliance has many interesting features that dier from those of standard packaged
terminal models. Owners need to familiarize themselves with these features in order to fully under-
stand the appliance's operation and capabilities.
INTELLIGENT SELF-DIAGNOSIS
This unit is equipped with an on-board computer that uses real-time diagnostics to extend its service
life. The control board, located behind the front panel, features an LED indicator that ashes an error
code if the unit has detected any anomaly. In many cases, the unit will automatically clear the problem
and continue to operate without interruption. In some cases, however, the error cannot be resolved
and the unit must be repaired. In this case, the "Fx" failure mode appears on the digital display.
MEMORY CAPABILITY
This appliance is also equipped with a built-in memory. In the event of a power failure, all control set-
tings (setpoint, mode, fan speed, on/o and conguration) are stored. This means that, when power
is restored, the unit restarts in the mode (and conguration) it was in at the time of the power failure.
NOISE REDUCTION
The unit is equipped with two fan motors, with the outdoor fan motor running at minimum speed for 10
seconds before compressor start-up to reduce compressor noise.
RANDOM COMPRESSOR RESTART
To avoid power surges after a power outage (due to simultaneous start-up of several units), the com-
pressor is equipped with a random restart delay function from 2 minutes 45 seconds to 3 minutes 15
seconds. Each time the unit is plugged in or the power is restored, a random restart of the compressor
occurs.
COMPRESSOR PROTECTION
To prevent compressor short-circuits and maximize compressor service life, the compressor is subject
to a random start-up delay of 3 minutes and a minimum running time of 3 minutes.
AUTOMATIC ROOM FREEZE PROTECTION
This function automatically prevents the room temperature from becoming too cold, which could cause
water pipes to freeze. If the unit is congured to activate the frost protection function (which it is by
default), every time the unit is powered up, if it detects a temperature below 4 °C (40 °F), the fan motor
and electric heater will start up and heat the room until it reaches 10 °C (50 °F). If frost protection
is not required, change the conguration switch to deactivate this function (see the section on unit
conguration).
AUTOMATIC DEFROST PROTECTION (FOR HEAT PUMP MODELS ONLY)
When the outdoor temperature becomes too cold ( approximately -2°C / 28°F) and the unit can no
longer heat eectively with the compressor, the unit automatically switches to electric heating. The unit
will then heat with electric heating until the outdoor temperature rises suciently ( approximately 4°C
/ 40°F) for the compressor to be used again.
AUTOMATIC QUICK WARM-UP (FOR HEAT PUMP MODELS ONLY)
If the room temperature falls 5 degrees below the set temperature, the reverse-cycle heater switches
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