6 HIGH SPEED SETTING FUNCTION
This function is used to set the air flow volume higher than
normal air flow volume. It is for high ceiling on site. Set High
Speed 1 or 2 from the function selection menu depending on a
ceiling height as shown in the table below.
If the high speed 2 setting (02) is selected from the remote
control switch, the air flow volume of “HIGH 2” and “HIGH” will
be equaled because the air flow volumes “HIGH 2” and “HIGH”
are used maximum fan speed.
Ceiling height
High speed setting function
0.8 to 1.5HP
2.0 to 6.0HP
Less than 2.6m
Less than 3.1m
Standard
2.6m
3.1m
High Speed 1
3.0m
3.5m
High Speed 2
7 AUTOMATIC CONTROL
The system is equipped with the following functions.
?
N O T E
Except in the case of a long period of shutdown, keep the main power
switch ON. The drain discharge mechanism is operated if the drain level
is higher than the setting.
•
Three Minute Guard (Enforced Stoppage)
This function is utilized to protect the compressor. When the
function is valid, the compressor does not operate the unit
for at least 3 minutes after it stops operating, with the RUN
indicator turned ON. The operation restarts automatically
after 3 minutes.
•
Three Minute Guard (Enforced Operation)
This function is utilized to protect the compressor. When the
function is valid, the compressor does not stop operating for
at least 3 minutes after it starts operating.
However, if all indoor units in the system are stopped by the
remote control switch, the compressor will stop operating.
•
Oil Return Operation
This function is utilized to prevent oil accumulation in the
heat exchanger of out-of-service indoor unit at cooling
operation.
If the indoor unit is stopped continuously for more than 2
hours, this function is operated for a few minutes.
•
Frost Prevention During Cooling Operation
This function is utilized to prevent frost formation on the
indoor unit heat exchanger. When the indoor unit is operated
at low discharge air temperature, the cooling operation
switches to fan operation automatically.
•
Self-Cleaning of Expansion Valve
This function is utilized to clean the expansion valve
automatically when the operation stops during cooling
operation. The sound of the refrigerant flowing may be heard
from the indoor unit during self cleaning operation. However,
it is not abnormal.
•
Hot Start During Heating Operation
This function is utilized to prevent cold discharged air at
start-up of heating operation, after defrosting operation, etc.
The fan speed automatically switches from Slow to Low
and then to the set fan speed. The fan operation might be
stopped for up to 2 minutes. At this time the louver is fixed
horizontally.
•
Defrosting Operation
The indoor fan stops during defrosting operation to prevent
cold air from being discharged. At this time the louver is fixed
horizontally.
•
Cooling of Indoor Unit
When the heating operation is stopped, the indoor fan
operation (fan speed: Low) might continue for up to 2
minutes to lower the temperature of the inside of the unit.
•
Automatic Defrosting Cycle
When the heating operation is stopped by pressing RUN/
STOP switch, frosting on the outdoor unit is checked and the
defrosting operation may be performed for the maximum of
10 minutes.
•
Prevention of Overload Operation
When the outdoor temperature is high (approx 21ºC) during
heating operation, heating operation is stopped due to
activation of the outdoor thermistor until the temperature
becomes low.
?
N O T E
• If the system is stopped due to a power failure, it will not automatically
start again even after power is restored. Repeat the start-up
procedure from Step 1 to start the system. In case of the power failure
for 2 seconds or less, the standard unit memorize all the operation
modes and restarts the operation automatically after approximately
3 minutes.
• This air conditioner adopts hot air circulation system for the heating
operation. If the air conditioning room is large or the room temperature
is excessively low, it takes time to warm the whole room. “HOT-ST”
will be turned OFF after heating the room.
• “HOT-ST” may be displayed during or right after defrosting operation.
It is activated to prevent the cold draft. It is NOT abnormal.
ENGLISH
HIGH SPEED SETTING FUNCTION
PMML0549 rev.1 - 02/2021 - A10761230A
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Summary of Contents for RCD-2.0FSR
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