Optional Functions Through Remote Control Switch - Hitachi RASC-4HNPE Service Manual

6 Optional functions
Optional functions

6.2.2 Optional functions through remote control switch

In addition to the possible optional functions through the 7-segment display of the RASC unit's PCB and through DIP
switch setting, there are available a large quantity of optional functions for each remote control switch connected to the
system.
An example of the available optional functions through the HITACHI individual remote controls (PC-ARF/PC-ART) is
shown below:
?
N O T E
For the detailed information about optional functions through remote controls, please refer to the Technical catalogue of Packaged
controllers.
Element Optional function
Removal of heating
b1 temperature
compensation
Circulator function at
b2
heating Thermo-OFF
Forced compressor
b3 operation for at least
3 minutes
Pre-determined
b4 filter cleaning period
change
Fixing of operation
b5
mode
Fixing of setting
b6
temperature
Fixing of cooling
b7
operation
Automatic COOL/
b8
HEAT operation
Fixing of indoor unit
b9
fan speed
bA Not available
109 SMGB0091 rev.2 - 11/2015
Individual
Settings Setting conditions
setting
Standard setting.
00 It increase the
temperature +4ºC
O
01 Removal
It increase the
02 (*1)
temperature +2ºC
00 Not activated function
O
01 Activated function
00 Not activated function
O
01 Activated function
Standard (1200 h
00
factory setting) (*2)
01 100 hours
O
02 1200 hours
03 2500 hours
04 No indication
00 Not activated function
X
01 Activated function
00 Not activated function
X
01 Activated function
00 Not activated function
X
01 Activated function
00 Not activated function
X
01 Activated function
00 Not activated function
X
01 Activated function
"- -"
X Not available
permanent
Description
This function is used when the temperature
setting displayed on the remote control
switch and the inlet air temperature of the
indoor unit must be the same.
This function means that the fan unit
remains running at the same speed during
Thermo-OFF condition to prevent the air in
the room from stratifying.
This function is used to protect the
compressor, preventing it from being
started or stopped for periods of less than
three minutes.
This function is used to modify the period
until the next display of filter cleaning sign.
Once the unit operating mode has been
selected, this function prevents it from
being modified from the remote control.
Once the unit temperature has been
selected, this function prevents it from
being modified from the remote control.
This function is available to use cooling
mode only and to prevent heating mode
from being enabled.
This function allows the automatic change
from the cooling to the heating mode for
the units with the same refrigerant cycle.
Once the indoor unit fan speed has been
selected, this function prevents it from
being modified from the remote control.
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