Daikin RYYQ8T7Y1B, Installation And Operation Manual

Page: 58 / 72

Installation and operation manual
53
RYYQ+RYMQ+RXYQ8~20T7Y1B
VRV IV System Air Conditioner
4P329765-1 – 2012.09
Accessories:
Equipment which is delivered with the unit and which needs to be
installed according to instructions in the documentation.
Optional equipment:
Equipment which can optionally be combined to the products as per
the subject of this manual.
Field supply:
Equipment which needs to be installed according to instructions in
this manual, but which are not supplied by Daikin.
2. Introduction
2.1. General information
The indoor unit part of VRV IV heat pump system can be used for
heating/cooling applications. The type of indoor unit which can be
used depends on the outdoor units series.
In general following type of indoor units can be connected to a
VRV IV heat pump system (not exhaustive list, depending on outdoor
unit model and indoor unit model combinations):

VRV direct expansion indoor units (air to air applications).
 RA direct expansion indoor units (air to air applications).

Hydrobox (air to water applications): HXY-series only.

AHU (air to air applications): EXV-kit is required.
 Aircurtain -Biddle- (air to air applications).
Combination of VRV direct expansion indoor units with RA direct
expansion units is allowed.
Combination of VRV direct expansion indoor units with Hydrobox
units is allowed.
Combination of VRV direct expansion indoor units with RA direct
expansion unit(s) and Hydrobox unit(s) is NOT allowed.
In case AHU or Aircurtain are used, no Hydrobox may be connected.
Hydrobox only connection to VRV IV heat pump outdoor unit is not
allowed.
Airhandling unit connection in pair to VRV IV heat pump outdoor unit
is supported.
Airhandling unit connection in multi to VRV IV heat pump outdoor unit
is supported, even combined with VRV direct expansion indoor
unit(s).
Single (continuous heating/non-continuous heating) unit
combinations: restrictions exist.
Multi (continuous heating/non-continuous heating) unit combinations:
restrictions exist.
For more specifications, see technical engineering data.
NOTICE
For future modifications or expansions of your system:
A full overview of allowable combinations (for future
system extensions) is available in technical engineering
data and should be consulted. Contact your installer to
receive more information and professional advice.
WARNING

If you detect any abnormality such as smell of fire,
turn off the power supply and call your dealer for
instructions.

Do not place objects in direct proximity of the outdoor
unit and do not let leaves and other debris accumulate
around the unit. Leaves are a hotbed for small
animals which can enter the unit. Once in the unit,
such animals can cause malfunctions, smoke or fire
when making contact with electrical parts.

Ask your dealer for improvement, repair, and
maintenance. Incomplete improvement, repair, and
maintenance may result in a water leakage, electric
shock and fire.
 Do not insert fingers, rods or other objects into the air
inlet or outlet. When the fan is rotating at high speed,
it will cause injury.

Never let the indoor unit or the user interface get wet.
It may cause an electric shock or a fire.
 Never use a flammable spray 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 a fuse of a 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.

To prevent refrigerant leak, contact your dealer. When
the system is installed and runs in a small room, it is
required to keep the concentration of the refrigerant, if
by any chance coming out, below the limit. Otherwise,
oxygen in the room may be affected, resulting in a
serious accident.

The refrigerant in the air conditioner is safe and
normally does not leak. If the refrigerant leaks in the
room, contact with a fire of a burner, a heater or a
cooker may result in a harmful gas.

Turn off any combustible heating devices, ventilate
the room and contact the dealer where you purchased
the unit.

Do not use the air conditioner until a service person
confirms that the portion where the refrigerant leaks is
repaired.

Improper installation or attachment of equipment or
accessories could result in electric shock, short circuit,
leaks, fire or other damage to the equipment.
 Be sure to use only accessories and spare parts
made by Daikin which are specifically designed for
use with the equipment and have them installed by a
professional.

Ask your dealer to move and reinstall the air
conditioner. Incomplete installation may result in a
water leakage, electric shock, and fire.

Do not place a flammable spray bottle near the air
conditioner and do not use sprays. Doing so may
result in a fire.

Before cleaning, be sure to stop the operation, turn
the breaker off or pull out the supply cord. Otherwise,
an electric shock and injury may result.

Do not operate the air conditioner with wet hands. An
electric shock may result.

Do not place appliances which produce open fire in
places exposed to the air flow from the unit or under
the indoor unit. It may cause incomplete combustion
or deformation of the unit due to the heat.

Do not wash the air conditioner with water. Electric
shock or fire may result.