Hitachi RCD-0.8FSN3 Installation And Operation Manual page 13

AVAILABLE REMOTE CONTROL SWITCH
6 AVAILABLE REMOTE CONTROL SWITCH
For detailed functions should be referred to remote control Installation and Operation Manual.
7 HIGH SPEED SETTING FUNCTION
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
8 AUTOMATIC CONTROL
The system is equipped with the following functions.
N O T E
•
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
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
at low discharge air temperature, the cooling operation
switches to fan operation automatically.
• Self-Cleaning of Expansion Valve
automatically when the operation stops during cooling
from the indoor unit during self cleaning operation. However,
it is not abnormal.
5 PMML0416A rev.0 - 12/2015 - P5415720
Ceiling height
0.8 to 1.5HP 2.0 to 6.0HP
Less than 2.6m Less than 3.1m
2.6m 3.1m
3.0m 3.5m
•
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
horizontally.
• Defrosting Operation
The indoor fan stops during defrosting operation to prevent
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
10 minutes.
• Prevention of Overload Operation
heating operation, heating operation is stopped due to
activation of the outdoor thermistor until the temperature
becomes low.
N O T E
•
•
•
High speed setting function
Standard
High Speed 1
High Speed 2