English
8
NOTE
• Do not turn off the power immediately after operation stops.
Wait at least 5 minutes.
Not waiting may cause leaking or malfunction.
• Do not change operations suddenly.
It can result not only in malfunction but also failure of
switches or relays in the remote controller.
• Never press the button of the remote controller with a hard,
pointed object.
The remote controller may be damaged.
EXPLANATION OF OPERATION MODE
NOTE
• This unit cannot control room temperature. If this is needed,
do not install the HRV unit alone, but rather install another
indoor unit.
EXPLANATION OF VENTILATION MODE
NOTE
• These icons below are displayed on the remote controller
BRC1D527.
Automatic mode
: When combined with a VRV
ΙΙ
-system
air conditioner
The unit automatically switches
between “
” and “
” based on
information from the VRV
ΙΙ
system air
conditioner (heating, cooling, fan, and
set temperature) and information from
the HRV unit (indoor and outdoor tem-
peratures).
The unit automatically switches between
“
” and “
” when it is combined
with an air conditioner (Not producted
by Daikin) and based on only the infor-
mation from the HRV unit (indoor and
outdoor temperatures) when the HRV
unit is operating alone.
Total heat exchange mode
: Outdoor air passes through
the heat exchange element
and heat exchanged air is
sent into the room.
Bypass mode
: In this mode outdoor air does not through
the heat exchange element, but rather
sent into the room as is.
EXPLANATION OF HEATING OPERATION
Defrost operation
• In heating operation, freezing of the outdoor unit’s coil
increases.
Heating capability decreases and the system goes into defrost
operation.
• The remote controller will read “
” until the hot air
starts blowing.
• It returns to the heating operation again after 6 to 8 minutes
(10 at the longest).
• During defrost operation, the fans of the unit continues driv-
ing (factory setting).
The purpose of this is to maintain the amount of ventilation
and humidifying.
• The change of the layout in the room should be examined
when the cold draft from air supplying opening is feared.
• Though the fan can be stopped by the setting of remote con-
troller.
Do not stop the fan in the place where no ventilation by stop-
ping the fan may cause the influence of diffusion of air which
it is dirty and moisture into another room, or the inflow from
outside the room.
(outflow such as viruses from the sickroom, or smell leakage
from the rest room, etc.)
Contact your dealer for details.
Hot start
• The remote controller will read “
” until the hot air
starts blowing, e.g. at the start of heating operation.
3.2 SETTING THE MASTER REMOTE CONTROL-
LER (Refer to figure 6)
• When the system is installed as shown bellow it is neces-
sary to designate one of the remote controllers as the mas-
ter remote controller.
• Only the master remote controller can select cooling, heat-
ing, or automatic operation (the last only on simultaneous
cooling/heating systems).
• The displays of slave remote controllers show “
”
(changeover under control) and they automatically follow the
operation mode directed by the master remote controller.
However, it is possible to changeover to program dry with slave
remote controllers if the system is in cooling operation set by the
master remote controller.
Cooling mode
Heating mode
Automatic mode
It automatically
selects “
” or
“
.”
Fan mode
It only operates in
ventilation mode.
The unit pro-
cesses outside air
using the heat
exchanger ele-
ment, but not the
DX expantion coil.
While operating in ventilation mode, the
unit adjusts the outside air to the indoor
temperature and then brings it into the
room.
(Cooling/heating selection operation systems)
When multiple indoor units
or this unit are connected to
a single outdoor unit.
One of these remote controllers can be
designated as the master remote
controller.
Indoor unit
HRV-with DX coil-
01_EN_3P130767-3G.fm Page 8 Monday, March 5, 2007 10:05 AM
