Description Of The Optional Remote Control Functions - Hitachi RCI Service Manual

6 Optional functions
Part Optional function
Operating mode change
H3
restriction
Operating modes for the
ventilation unit with
H4
energy / heat recovery
Central control available
H5
after forced stoppage
O: allows for individual setting.
X: the setting is made for all outdoor units.
–: not used.
1
Setting 02 is not available on all indoor units.
2
On RPI units: 00 Increases speed 1 (standard), 01 Increases speed 2 (high static pressure), 02 Standard speed (low static
pressure).
3
00 standard (7-position setting); 01 draught prevention (cannot be set below two positions); 02 High ceilings (cannot be
set above two positions).

6.3.3 Description of the optional remote control functions

b1 – Elimination of the heating temperature offset
This function is useful when the thermistor is removed from the suction area of the indoor unit and installed somewhere
else. It is used when the temperature setting displayed on the remote control and the inlet air temperature of the indoor unit
are to be the same.
Settings
00
01
02
b2 – Forced air circulation function on reaching the set temperature
This function is useful when the air in the room is stratified (hot air accumulates at the ceiling). Air stratification may occur
if LOW has been selected with the heating thermostat off. This function prevents air stratification in the room after stopping
the air conditioning system.
The circulation pump function maintains the fan speed, whether the thermostat is on or off. Hence, the air movement in the
room is kept at the same level to ensure even air distribution.
N O T E
If the indoor unit has an automatic louver, this function also remains active when the heating thermostat is switched
off.
205
SMGB0063 rev. 1 - 10/2010
Indivi
dual Condition
Settings
settin setting
g
Operating
mode change
00
disabled
(factory setting) This function is used to configure
Operating
O
mode set by the
01
central control +
FAN mode
Unlimited
02
operating mode
Air conditioning
00
only
O 01 Ventilation only
Air conditioning
02
+ ventilation
00 Not available
O
01 Available
Actual temperature control
Standard setting. Selected temperature +4 °C increase
Offset elimination
Selected temperature +4 °C increase
Description
restrictions to the operating mode.
This function is only available for the
ventilation unit with energy / heat recovery.
This function allows for central control after
the forced stoppage of the unit.
6