User`s manual

Control systems
The VRV III-S system uses the same DIII-NET communication system as
the VRV, enabling the use of advanced control systems.
CONTROL SYSTEMS
The same operation modes and settings as with wired remote controllers (BRC1C62
only) are possible.
A compact signal receiver unit (separate type) to be mounted into a wall or ceiling is
included.
Signal receiver unit
(Separate type)
Wireless remote
controller
The concealed type remote controller smartly fits into a
night table or console panel in a hotel room.
Wireless remote controller (Option)
Simplified remote controller (Option)
Wide variation of remote controllers for indoor units
Wired remote controller
(BRC1C62)
Wired remote controller
with weekly schedule timer
(BRC1D61)
Wireless remote controller*
(Installed type signal receiver unit)
Wireless remote controller*
(Separate type signal receiver unit)
Simplified remote controller
(Exposed type)
(BRC2C51)
Simplified remote controller
(Concealed type: for Hotel use)
(BRC3A61)
FXFQ FXZQ FXKQ FXDYQ FXMQ FXHQ FXUQFXAQ FXL
(
N
)
Q FXDQ
Individual control systems
*Wireless remote controller and signal receiver unit are sold as a set.
* Refer to page 37 for the name of each model.
* Refer to page 37 for the name of each model.
• A signal receiver unit (installed type) for a Ceiling Mounted Cassette (Round Flow,
Compact Multi Flow, Double Flow) type, Ceiling Suspended type and Wall Mounted
type is mounted into the indoor unit.
Signal receiver unit can be
installed on the panel
ex. Ceiling Mounted Cassette (Round Flow) type
Digital display lets you set temperature in 1°C units.
Lets you individually programme by timer the respective times for operation start and
stop within a maximum of 72 hours.
Equipped with a thermostat sensor in the remote controller that makes possible more
comfortable room temperature control.
Enables you to select cool/heat/fan operation mode with the indoor remote controller
of your choice without using the cool/heat selector. (dependant on system)
Equipped with self-diagnosis function that constantly monitors the system for
malfunctions. Should a problem occur, the system alerts you of the problem through
an alphanumeric code.
The rubber switch and the oil-resisting resin casing have been adopted for durability.
* When the auto-swing function is not available, the message, THIS FUNCTION IS NOT AVAILABLE is displayed
when the air direction adjustment button is pressed.
Wired remote controller (Option)
BRC1C62
The remote controller has
centralised its frequently used
operation selectors and
switches (on/off, operation
mode, temperature setting and
airflow volume), making itself
suitable for use in hotel rooms
or conference rooms.
The exposed type remote
controller is fitted with a
thermostat sensor.
Concealed type
(For hotel use)
(BRC3A61)
Exposed type
(BRC2C51)
Outdoor
unit
Indoor unit
Forced OFF
input
Remote controller
Remote controller
Remote controller
Remote controller
Remote controller
Remote controller
Remote
controller
Remote
controller
HRV
The indoor unit can be connected by the two
remote controller, for example one in the room
and the other one in the control room, which
can control the operation of indoor unit freely.
(The last command has a priority.) Of course,
the group control by two remote controllers is
also possible.
Control by two remote controllers
The system can be expanded to add
several controllers, such as BMS, Forced
OFF input and etc.
Expansion of system control
In all the series of VRV, Cool/Heat changeover in the same refrigerant
circuit can be changed by the master remote controller of an indoor unit.
Control of Cool/Heat
changeover
One remote controller can
control the operation of max.16
indoor units at the same time.
Group control
Equipment
related to the
central control
1 2 3
The wiring of remote controller can be
extended to max.500 m and it is possible
to install the remote controllers for the
different indoor units in one place.
Remote control
The operation of HRV can be controlled by
the remote controller of the indoor unit. Of
course, the remote controller can display
the time to clean the filter.
Control for the combined operation
4
4
3
2
1
Refer to page 7 for the total number of indoor units that can be connected to the outdoor unit.
The wired remote controller supports a wide range of control functions
FXCQ FXSYQ
109
Signal receiver unit
(Installed type)
Wired remote controller with weekly schedule timer (Option)
BRC1D61
24-hour clock function (1-hour backup for power failures)
Includes ventilation mode and airflow rate switching, the main functions of HRV series.
Programming function for each day of week.
Scheduling possible of start/stop and temperature limit (5 settings/day)
Programming can be enabled or disabled.
Copy function for programmed schedules.
Adds advanced functions to those of the above wired remote
controller.
Notes: 1. Standard remote controllers (BRC1C62) not required.
2. If the BRC1D61 is connected to the centralised remote controllers (DCS303A51,
DCS302CA61,DCS301BA61, DST301BA61), the schedule function is not available.