About The System; System Layout - Daikin VRV 5 RXYA8A7Y1B Installation And Operation Manual

4 About the system

▪ In case of accidental refrigerant
leaks, make sure there are no naked
flames. The refrigerant itself is
entirely safe, non-toxic and mildly
flammable, but it will generate toxic
gas when it accidentally leaks into a
room where combustible air from fan
heaters, gas cookers, etc. is present.
Always have qualified service
personnel confirm that the point of
leakage has been repaired or
corrected before resuming operation.
Troubleshooting (see "8 Troubleshooting" [ 4 14])
WARNING
Stop operation and shut OFF the
power if anything unusual occurs
(burning smells etc.).
Leaving the unit running under such
circumstances may cause breakage,
electrical shock or fire. Contact your
dealer.
WARNING
The unit is equipped with a refrigerant
leak detection system for safety.
To be effective, the unit MUST be
electrically powered at all times after
installation, except for maintenance.
CAUTION
NEVER expose little children, plants or
animals directly to the airflow.
CAUTION
Do NOT touch the heat exchanger fins.
These fins are sharp and could result
in cutting injuries.
Installation and operation manual
10
4 About the system
The VRV 5 uses R32 refrigerant which is rated as A2L and is mildly
flammable. For compliance with the requirements for enhanced
tightness refrigerating systems and IEC60335-2-40 the installer must
take extra measures. For more information, see
refrigerant" [ 4 7].
equipment using R32
The indoor unit part of this VRV 5 heat pump system can be used for
heating/cooling applications. The type of indoor unit which can be
used depends on the outdoor unit series.
WARNING
▪ Do NOT modify, disassemble, remove, reinstall or
repair the unit yourself as incorrect dismantling or
installation may cause an electrical shock or fire.
Contact your dealer.
▪ In case of accidental refrigerant leaks, make sure there
are no naked flames. The refrigerant itself is entirely
safe, non-toxic and mildly flammable, but it will
generate toxic gas when it accidentally leaks into a
room where combustible air from fan heaters, gas
cookers, etc. is present. Always have qualified service
personnel confirm that the point of leakage has been
repaired or corrected before resuming operation.
WARNING
The unit is equipped with a refrigerant leak detection
system for safety.
To be effective, the unit MUST be electrically powered at
all times after installation, except for short service periods.
NOTICE
Do NOT use the system 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.
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.
NOTICE
It is NOT allowed to cool technical rooms like server rooms
and data centres, where year-round cooling is required.
4.1

System layout

Your VRV 5 heat pump series outdoor unit can be one of following
models:
Model
RXYA8~12 Heat pump model, for single or multi-use
RXYA14~20 Heat pump model, for single use
(standalone unit)
RYMA5 Heat pump model, only for multi-use and
only for standard combinations
Depending on the type of outdoor unit which is chosen, some
functionality will or will not exist. It will be indicated throughout this
operation manual when certain features have exclusive model rights
or not.
INFORMATION
The following figure is an example and may NOT
completely match your system layout
"2.1 Instructions for
Description
RYMA5+RXYA8~20A7Y1B
VRV 5 heat pump
4P739915-1 – 2023.12