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2-2
REMOTE CONTROLLER AND CHANGEOVER
SWITCH: NAME AND FUNCTION OF EACH
SWITCH AND DISPLAY (Refer to figure 3)
• Only the items marked with an asterisk (∗ mark) are expla-
nation relating to the functions and display of the unit.
Unmarked items are functions of the combined air condition-
ers. When using buttons for functions which are not avail-
able (buttons which are not described in the text) will cause
"NOT AVAILABLE" to be displayed.
Contact your dealer for more detailed descriptions of those
functions (buttons).
∗1 On/off button
Press the button and the system will start. Press the but-
ton again and the system will stop.
∗ ∗ ∗ ∗ 2 Operation lamp (red)
The lamp lights up during operation.
∗ ∗ ∗ ∗ 3 Display "
" (changeover under control)
May be displayed when combined with a VRV-system air
conditioner.
While the indication is shown, the ON/OFF of HRVs can-
not be operated by the HRV remote controller.
It is impossible to changeover heat/cool with the remote
controller when this icon is displayed.
4 Display "
" (air flow flap)
This displays the direction and mode of the air flow flap of
the combined air conditioner.
5 Display "
This display shows that the total heat exchange and the
air cleaning unit are in operation. (These are optional
accessories.)
6 Display "
" (set temperature)
C
This displays the set temperature of the combined air
conditioner.
It is not displayed when the unit is used as an indepen-
dent system.
7 Display "
" "
" "
(operation mode)
This displays the operating status of the combined air
conditioner.
• There is no "heating" for the VRVII system
(Cooling only type).
• "
" is only available for systems operating in cool-
ing and heating at the same time.
∗ ∗ ∗ ∗ 8 Display "
" (programmed time)
This display shows the programmed time of the system
start or stop.
9 Display "
" (inspection/test operation)
TEST
When the inspection/test operation button is pressed, the
display shows the mode in which the system actually is.
• Do not use under usual use
(service person/installer only).
10 Display "
When this display shows, the system is under centralized
control. (This is not a standard specification.)
During this indication appears on the display, the ON/
OFF and timer operation may not be possible with the
HRV remote controllers.
∗ ∗ ∗ ∗ 11 Display "
" (fan speed)
This display shows the fan speed you have selected.
This is always displayed when you use the remote con-
troller BRC301B61.
But, this is only displayed when the fan speed selection
button is pressed. It normally displays the set fan
strength of the combined air conditioner. (only to use
BRC1C61, BRC1A61, A62)
∗ ∗ ∗ ∗ 12 Display "
" (time to clean air filter)
Refer to "4-1 HOW TO CLEAN THE AIR FILTER".
3
" (ventilation/air cleaning)
" "
" "
"
" (under centralized control)
13 Display "
" (defrost/hot start)
It may be displayed when the combined air conditioner is
in heating mode.
∗ ∗ ∗ ∗ 14 Timer mode start/stop button
Refer to the chapter "Operation procedure -
Programming start and stop of the system with timer." (3-2)
∗ ∗ ∗ ∗ 15 Timer on/off button
Refer to the chapter "Operation procedure -
Programming start and stop of the system with timer." (3-2)
∗ ∗ ∗ ∗ 16 Inspection/test operation button
Pressed during inspection or "test run."
• Do not use under usual use.
(service person/installer only)
∗ ∗ ∗ ∗ 17 Programming time button
Use this button for programming start and/or stop time.
18 Temperature setting button
Use this button for setting the desired temperature of air
conditioner combined with this unit.
∗ ∗ ∗ ∗ 19 Filter sign reset button
Refer to "4-1 HOW TO CLEAN THE AIR FILTER".
20 Fan speed control button
Press this button to select the fan speed of air conditioner
combined with this unit.
∗21 Operation mode selector button
Press this button to select the operation mode of air con-
ditioner combined with this unit.
22 Air flow direction adjust button
Press this button to select the air flow direction of air con-
ditioner combined with this unit.
23 Fan only/air conditioning selector switch
Set the switch to "
" for fan only operation or to "
for heating or cooling operation.
24 Cool/heat changeover switch
Set the switch to "
" for cooling or to "
operation.
25 Remote controller thermo
This detects the temperature around the remote control-
ler. This is not the same as the temperature of return air
from room (RA) by heat exchanger unit.
∗26 Display "
" "
" "
This displays the ventilation mode.
(BRC301B61, BRC1C61 and so on.)
(This is not displayed on the controller BRC1A61, 1A62)
∗27 Display "NOT AVAILABLE"
• "NOT AVAILABLE" may be displayed for a few sec-
onds if the function for the button pressed is not avail-
able for the unit or the air conditioner.
• "NOT AVAILABLE" is only displayed when none of the
indoor units is equipped with the function in question
when running several units simultaneously. It is not dis-
played if the function is available on even one of the units.
∗28 Ventilation fan mode selector button
(available only connecting the HRV unit)
This is pressed to switch the fan mode of the HRV unit.
∗29 Ventilation fan speed control button
(available only connecting the HRV unit)
This is pressed to control the fan speed of the HRV unit.
(Refer to item 11)
∗30 Display "
" (operation standby)
It indicates the pre-cooling/pre-heating operation. This
unit is at stop and will start operation after the pre-cool-
ing/pre-heating operation is over.
Pre-cooling/pre-heating operation means the operation of
HRVs is delayed during the startup operation of linked air
conditioners such a before the office hours.
During this period the cooling or heating load is reduced
to bring the room temperature to the set temperature in a
short time.
"
" for heating
"
English
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