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RX(Y)Q5~1 RXYQ8~18 RXYSQ4~6P7V3B
VRVIII and VRVIII-S system air conditioner
4PW28160-1A

Operation manual

 

3

 

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 2

.

 

 

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 4

.

 

 

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.

 

For systems without cool/heat changeover remote control 

 

switch 

(See figure 3)

 

1

 

Press the operation mode selector button several times and
select the operation mode of your choice.

 

2

 

Press the on/off button.

The operation lamp lights up and the system starts operation.

 

For systems with cool/heat changeover remote control switch

 

1

 

Select operation mode with the cool/heat changeover remote
control switch as follows:

 

2

 

Press the on/off button.

The operation lamp lights up and the system starts operation.

 

Adjustment

 

For programming temperature, fan speed and air flow direction, refer
to the operation manual of the remote controller.

 

Stopping the system

 

3

 

Press the on/off button once again.

The operation lamp goes off and the system stops operation.

Explanation of heating operation

It may take longer to reach the set temperature for general heating
operation than for cooling operation.

The following operation is performed in order to prevent the heating
capacity from dropping or cold air from blowing.

Defrost operation (heat pump and heat recovery types only)

In heating operation, freezing of the outdoor unit coil increases.
Heating capability decreases and the system goes into defrost
operation.

The indoor unit fan stops and the remote controller displays

.

After maximum 10 minutes of defrost operation, the system
returns to heating operation again.

Hot start (heat pump and heat recovery types only)

In order to prevent cold air from blowing out of an indoor unit at
the start of heating operation, the indoor fan is automatically
stopped. The display of the remote controller shows 

.

It may take some time before the fan starts. This is not a
malfunction.

RXQ5~18

RXYQ5~18

RXYSQ4~6

COOLING

COOLING

HEATING

Outdoor temperature

–5~43°C DB

–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

21~32°C DB

15~27°C DB

14~25°C WB

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.

80%

(†)

80%

(†)

Cooling operation

Heating operation

Fan only operation

 

Cooling operation (

figure 4.1

)

 

Heating operation (

figure 4.2

)

Fan only operation (

figure 4.3

)

NOTE

Do not turn off power immediately after the unit stops,
but wait for at least 5 minutes.

NOTE

The heating capacity drops when the outside
temperature falls. If this happens, use another
heating device together with the unit. (When using
together with appliances that produce open fire,
ventilate the room constantly.)
Do not place appliances that produce open fire in
places exposed to the air flow from the unit or
under the unit.

It takes some time to heat up the room from the
time the unit is started since the unit uses a hot-air
circulating system to heat the entire room.

If the hot air rises to the ceiling, leaving the area
above the floor cold, we recommend that you use
the circulator (the indoor fan for circulating air).
Contact your dealer for details.

Summary of Contents for RXQ14P7W1B

Page 1: ...1B RXQ14P7W1B RXQ16P7W1B RXQ18P7W1B RXYQ5P7W1B RXYQ8P7W1B RXYQ10P7W1B RXYQ12P7W1B RXYQ14P7W1B RXYQ16P7W1B RXYQ18P7W1B RXYQ8P7W1B1 RXYQ10P7W1B1 RXYQ12P7W1B1 RXYQ14P7W1B1 RXYQ16P7W1B1 RXYQ18P7W1B1 RXYSQ4P7V3B RXYSQ5P7V3B RXYSQ6P7V3B and System air conditioner ...

Page 2: ...4 1 5 5 3 2 4 RXQ 4 1 2 3 1 1 4 2 2 3 1 1 4 3 2 3 1 3 1 2 1 1 5 3 5 2 4 6 UNIT NO 1 2 3 4 2 1 2 7 C D A B 8 RXYSQ RXYQ RXYSQ RXYQ 1 5 5 3 2 4 6 1 5 5 6 4 4 1 1 2 3 4 1 4 2 4 3 5 6 7 8 ...

Page 3: ... such as hair spray lacquer or paint near the unit It may cause a fire Never touch the air outlet or the horizontal blades while the swing flap is in operation Fingers may become caught or the unit may break down Never replace a fuse with that of wrong ampere ratings or other wires when a fuse blows out Use of wire or copper wire may cause the unit to break down or cause a fire Never put any objec...

Page 4: ...the unit carelessly it may result in injury Do not place a flower vase or anything containing water on the unit Water may enter the unit causing an electric shock or fire Do not place the controller exposed to direct sunlight The LCD display may get discolored failing to display the data Do not wipe the controller operation panel with benzine thinner chemical dustcloth etc The panel may get discol...

Page 5: ...set temperature for general heating operation than for cooling operation The following operation is performed in order to prevent the heating capacity from dropping or cold air from blowing Defrost operation heat pump and heat recovery types only In heating operation freezing of the outdoor unit coil increases Heating capability decreases and the system goes into defrost operation The indoor unit ...

Page 6: ...sired position 6 4 Setting the master remote controller When the system is installed as shown in figure 8 it is necessary to designate one of the remote controllers as the master remote controller Only the master remote controller can select heating or cooling operation The displays of slave remote controllers show change over under centralized control and they automatically follow the operation m...

Page 7: ... and outdoor units Clean air filters and casings of indoor units Refer to the operation manual supplied with the indoor units for details on how to proceed and make sure to install cleaned air filters back in the same position Turn on the power at least 6 hours before operating the unit in order to ensure smoother operation As soon as the power is turned on the remote controller displays appear 8 ...

Page 8: ...is heard when the system stops after heating operation Expansion and contraction of plastic parts caused by temperature change make this noise A low sah choro choro sound is heard while the indoor unit is stopped When the other indoor unit is in operation this noise is heard In order to prevent oil and refrigerant from remaining in the system a small amount of refrigerant is kept flowing Symptom 8...

Page 9: ...al years performance of the unit will deteriorate to some extent As taking apart and cleaning interiors of units requires technical expertise and in order to ensure the best possible maintenance of your units we recommend to enter into a maintenance and inspection contract on top of normal maintenance activities Our network of dealers has access to a permanent stock of essential components in orde...

Page 10: ...ur dealer for removing and reinstalling the total unit Moving units requires technical expertise This unit uses hydrofluorocarbon Contact your dealer when discarding this unit It is required by law to collect transport and discard the refrigerant in accordance with the hydrofluorocarbon collection and destruction regulations NOTES Component Inspection cycle Maintenance cycle replacements and or re...

Page 11: ...NOTES NOTES ...

Page 12: ...Zandvoordestraat 300 B 8400 Oostende Belgium 4PW28160 1A ...

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