RX(Y)Q RXQ8+1 RXYQ8~1
RXYQ18~4 RXQ5~1 RXYQ5~4
REYQ8~4 RXYSQ4~6M7V3B
VRVII and VRVII-S system air conditioner
4PW16234-1C
Operation manual
3
2.
W
HAT
TO
DO
BEFORE
OPERATION
This operation manual is for the following systems with standard
control. Before initiating operation, contact your dealer for the
operation that corresponds to your system type and mark.
If your installation has a customized control system, ask your dealer
for the operation that corresponds to your system.
Outdoor units
(See figure 1)
Names and functions of parts
(See figure 1)
(
figure 1
shows systems with changeover remote control switches.)
3.
R
EMOTE
CONTROLLER
Refer to the operation manual of the remote controller.
4.
C
HANGEOVER
SWITCH
: N
AME
AND
FUNCTION
OF
EACH
SWITCH
(See figure 2)
1
FAN ONLY/AIR CONDITIONING SELECTOR SWITCH
Set the switch to
for fan only operation or to
for heating or
cooling operation.
2
COOL/HEAT CHANGEOVER SWITCH
Set the switch to
for cooling or to
for heating operation.
5.
O
PERATION
RANGE
Operation range
Use the system in the following temperature and humidity ranges for
safe and effective operation.
6.
O
PERATION
PROCEDURE
■
Operation procedure varies according to the combination of
outdoor unit and remote controller. Read
"2. What to do before
operation" on page 3
.
■
To protect the unit, turn on the main power switch 6 hours before
operation.
■
If the main power supply is turned off during operation, operation
will restart automatically after the power turns back on again.
6.1.
Cooling, heating, fan only, and automatic
operation
(See
figure 3
and
figure 4.1
)
■
Changeover cannot be made with a remote controller whose
display shows
(change-over under centralized control).
■
When the display
(change-over under centralized control)
flashes, refer to
"6.4. Setting the master remote controller" on
page 5
.
■
Automatic operation can be selected only for REYQ series.
■
RXQ series let you select fan only and cooling operation.
■
The fan may keep on running for about 1 minute after the
heating operation stops.
■
The air flow rate may adjust itself depending on the room
temperature or the fan may stop immediately. This is not a
malfunction.
Cool/heat
changeover
remote control
switch
operation modes
Cooling only
RXQ
series
Heat pumps
RXYQ
series
❏
yes
❏
no
Heat pumps
RXYSQ
series
❏
yes
❏
no
Heat recovery series
Heat pumps
REYQ
series
❏
yes
❏
no
1
Outdoor unit
2
Indoor unit
3
Remote controller
4
Inlet air
5
Outlet air
6
BS (branch selector) unit
7
Cool/heat changeover remote control switch
RXQ5~10
RXYQ5~48 + REYQ8~48
COOLING
COOLING
HEATING
Outdoor temperature
–5~43°C DB
–5~43°C DB
–20~21°C DB
–20~15.5°C WB
Indoor temperature
21~32°C DB
21~32°C DB
15~27°C DB
14~25°C WB
14~25°C WB
Indoor humidity
≤
80%
(*)
≤
80%
(*)
RXYSQ4~6
COOLING
HEATING
Outdoor temperature
–5~46°C DB
–20~24°C DB
(†)
(†) Range for operation: –20~–15°C WB. Range for continuous operation:
–15~15.5°C WB.
–20~15.5°C WB
Indoor temperature
21~32°C DB
15~27°C DB
14~25°C WB
Indoor humidity
≤
80%
(*)
(*)
to avoid condensation and water dripping out the unit.
If the temperature or the humidity is beyond these conditions, safety devices may
work and the air conditioner may not operate.
