INSTALLATION MANUAL AND USERS GUIDE
Single Split Series – Ductless Split System Heatpump
04005030101 © Sedna Aire Europe GmbH 8 02/2014
SPECIAL FUNCTIONS IN THE COOLING MODE
Principle:
The air conditioner absorbs heat from indoor air and transmits it outdoors for discharge, hence to
decrease the indoor ambient temperature. The cooling capacity decreases with the rise of outdoor
ambient temperature.
Anti-freeze Function:
If the air conditioner is running in the low-temperature cooling, frost will appear on the surface of
the indoor heat exchanger. When the temperature of the indoor unit heat exchanger is decreased
to 0 °C or lower, the microcomputer control will stop the compressor to protect the complete unit.
SPECIAL FUNCTIONS IN THE HEATING MODE
Principle:
The air conditioner absorbs heat from outdoor air and transmits it indoors for emission, hence
to increase the air temperature in the room. The heating capacity decreases with decreasing
out door ambient temperature
It takes only a short time for this type of hot air circulating to increase the indoor temperature
Use this air conditioner with other heating equipment, if the outdoor temperature is extremely
low
Defrost:
When the outdoor temperature is low but the humidity is high, the heat exchanger of outdoor
unit may be frosted after the air conditioner has run for a period of time. This will decrease the
heating effect. ln this case, auto defrost function will be activated and the heating mode will
temporarily stopped for 8-10 minutes.
Both the indoor fan and outdoor fan will be stopped during auto defrost.
During defrost, the indicator on indoor unit will blink and steam might flow from the indoor unit.
This is caused by quick defrost other than fault.
Heating mode will automatically resume upon completion of defrost process.
Anti-cool Air Function:
In heating mode, if the indoor heat exchanger fails to reach a specific temperature under following
conditions, so the indoor fan will not be started, so as to avoid blowing of cold air (within 3 min.):
Start of heating mode
End of auto defrost
Heating under low-temperature environment
Conditions for the air conditioner unable to run normally:
Protection device might be activated within such temperature range as specified below, so that the
unit could be stopped
Heating mode: Outdoor temperature above 24°C, Outdoor temperature below -7°C, Room
temperature above 27°C
Cooling mode: Outdoor temperature above 43°C, Room temperature below 21°C
Dehumidify mode: Room temperature below 18°C
lf the unit is running for long time in the cool or humidify mode with relative humidity higher than
80% (door and windows are open), dew might drop near the air outlet.
