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English
34 MINIMUM SET TEMPERATURE “
”
The minimum set temperature indicates the minimum set
temperature when in limit operation.
∗
35 SCHEDULE TIMER ICON “
”
This icon indicates that the schedule timer is enabled.
∗
36 ACTION ICONS “
”
These icons indicate the actions for each day of the sched-
ule timer.
∗
37 OFF ICON “
”
This icon indicates that the OFF action is selected when
programming the schedule timer.
∗
38 ELEMENT CLEANING TIME ICON “
”
This icon indicates the element must be cleaned
( “
” only).
∗
39 PROGRAMMING BUTTON “
”
This button is a multi-purpose button.
Depending on the previous manipulations of the user, the
programming button can have various functions.
∗
40 SCHEDULE TIMER BUTTON “
”
This button enables or disables the schedule timer.
41 OPERATION CHANGE/
BUTTON “
”
This button is a multi-purpose button. Depending on the
previous manipulations of the user, it can have following
functions:
42 SETPOINT/LIMIT BUTTON “
”
This button toggles between setpoint, limit operation or
(programming mode only).
NOTE
• In contradistinction to actual operating situations, the display
on figure 3 shows all possible indications.
• If the filter sign lamp lights up, clean the air filter as explained in
the chapter “MAINTENANCE”. After cleaning and reinstalling
the air filter: press the filter sign reset button on the remote con-
troller. The filter sign lamp on the display will go out.
• Item 27~ Item 42 can be used with BRC1D527.
In detail, refer to operation manual of the remote controller.
• Only the items marked with an asterisk (
∗
mark) are explanation
relating to the functions and display of the unit.
Unmarked items are functions of the combined air conditioners.
2.3 EXPLANATION FOR SYSTEMS
This unit can be made a part of two different systems: as
part of the combined operation system used together with
VRV
II
SYSTEM Air Conditioners and as the independent
system using only the HRV. An operating remote controller
is required when using the unit as an independent system.
Ask your dealer what kind of system your system is set up
for before operation.
For the operation of the remote controller for indoor unit
and centralized controller, refer to the instruction manual
provided with each unit.
See the included operating manuals for details on how to
operate each remote control.
OPERATION for EACH SYSTEM
Sample system (Refer to figure 2)
Combined operation system with VRV
II
systems
[Operation]
The air conditioner remote controller starts and stops the air
conditioner and the HRV unit.
You can also select the ventilation amount and the ventilation mode.
Refer to “3 OPERATION PROCEDURE”.
During intermediate periods when only the HRV unit is used
without the air conditioner, select “ventilation” with the opera-
tion selection button.(Refer to 2.4)
Sample system (Refer to figure 2)
Independent system
[Operation]
The HRV unit can be started and stopped using the remote controller.
You can also select the ventilation amount and the ventilation mode.
Refer to “3 OPERATION PROCEDURE”.
NOTE
• This unit cannot control room temperature. If this is needed,
do not install the HRV unit alone, but rather install another
indoor unit.
2.4 ABOUT DIRECT DUCT CONNECTION SYSTEM
Installation Examples
Direct duct connection system
Independent duct system
The HRV unit cannot be operated independently when the
air conditioner is connected to the HRV unit via a duct.
When using the HRV unit, set the air conditioner to “fan”
mode on weak fan strength.
• Each time you press the operation selection button, the
operation mode display will change as shown in the figure
below.
1
select the operation mode of the installation (FAN,
DRY, AUTOMATIC, COOLING, HEATING)
2
toggle between minimum temperature and maximum
temperature when in limit operation
(HC0007)
NOTE) • The system must be operated interlocking
with the air conditioner.
• Do not connect to the outlet side of the indoor unit.
(HC0008)
Operation mode display
“Ventilation” is displayed.
Operation mode
selector button
Remote controller
for indoor unit
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