User`s manual

English 4
∗14 Timer mode start/stop button
Refer to the chapter “Operation procedure -
Programming start and stop of the system with timer.”
(Refer to page 7 (3-3))
∗15 Timer on/off button
Refer to the chapter “Operation procedure -
Programming start and stop of the system with timer.”
(Refer to page 7 (3-3))
∗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 condi-
tioner 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 “” for heating
operation.
25 Remote controller thermo
This detects the temperature around the remote controller.
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. (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 seconds if
the function for the button pressed is not available 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 displayed 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)
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.
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
VRVII 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 VRVII systems
[Operation]
The air conditioner remote controller stars and stops the air
conditioner and the HRV unit.
You can also select the ventilation amount and the ventilation mode.
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.
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.
(HC0007)
(HC0008)
TEST
hr
TEST
NOT
AVAILABLE
hr
Operation mode display
“Ventilation” is displayed.
Operation mode
selector button
Remote controller
for indoor unit
3P130767-1_En.fm Page 4 Wednesday, December 17, 2003 7:39 PM