System Layout; Before Operation - Daikin RWEYQ8T8Y1B Installation And Operation Manual

NOTICE
Never put any objects into the air inlet or outlet.

Objects touching the fan at high operating speed can
be dangerous.
Never press the button of the user interface with a

hard, pointed object. The user interface may be
damaged.
Never pull or twist the electric wire of the user

interface. It may cause the unit to malfunction.
Never inspect or service the unit by yourself. Ask a

qualified service person to perform this work.
Do not use the air conditioner for other purposes. In

order to avoid any quality deterioration, do not use the
unit for cooling precision instruments, food, plants,
animals or works of art.
After a long use, check the unit stand and fitting for

damage. If damaged, the unit may fall and result in
injury.
Do not place items which might be damaged by

moisture under the indoor unit. Condensation may
form if the humidity is above 80%, if the drain outlet is
blocked or the filter is polluted.
 Arrange the drain hose to ensure smooth drainage.
Incomplete drainage may cause wetting of the
building, furniture etc.
Do not place the controller exposed to direct sunlight.

The LCD display may get discoloured, failing to
display the data.
Do not wipe the controller operation panel with

benzine, thinner, chemical dust cloth, etc. The panel
may get discoloured or the coating peeled off. If it is
heavily dirty, soak a cloth in water-diluted neutral
detergent, squeeze it well and wipe the panel clean.
Wipe it with another dry cloth.
Do not operate the air conditioner when using a room

fumigation-type insecticide. This could cause the
chemicals to become deposited in the unit, which
could endanger the health of those who are
hypersensitive to chemicals.
Do not place heaters directly below the unit, as heat

can cause deformation.
Turn off the power supply when the unit is not to be

used for a long time.
Do not place flammable containers, such as spray

cans, within 1 m from the blow-off mouth.
RWEYQ8+10T8Y1B
VRV-W IV System Air Conditioner
4P399208-1 – 2015.01
2.2.

System layout

Your VRV IV water-cooled series outdoor unit layout can be one of
following:
A
1 2 3
B
1 2 3
A Heat pump system:
Heating or cooling mode is possible.
B Heat recovery system:
Heating, cooling or simultaneous heating/cooling is
possible.
1 Closed cooling tower
2 Boiler
3 VRV IV water-cooled unit
4 VRV DX indoor unit.
5 User interface:
Dedicated depending on indoor unit type.
6 BS box:
Required in each indoor unit if user selectable operation
mode is required.
This system can deliver cooling or heating by exchanging the heat
with chilled water or warmed water being sent from an external
source (e.g.: boiler/solar panel/cooling tower/natural source/etc.).
3.

Before operation

This operation manual is for 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.
Operation modes (depending on indoor unit type):
Heating and cooling.

 Fan only operation.
Automatic cooling/heating changeover (heat recovery system)

Dedicated functions exist depending on the type of indoor unit, refer
to dedicated installation/operation manual for more information.
4
5
4
5
6
Installation and operation manual
47