About The System - Daikin VRV 5 RXYA8A7Y1B Installer And User Manual

5 About the system

RYMA5+RXYA8~20A7Y1B
VRV 5 heat pump
4P749918-1 – 2023.12
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 "3.1 Instructions for 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.
In general following type of indoor units can be connected to a VRV 5 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).
▪ EKVDX (air-to-air applications): VAM-J8 required.
▪ AHU (air-to-air applications): EKEXVA-kit is required.
▪ Aircurtain (Biddle) (air-to-air applications).
Possible outdoor unit combinations:
▪ Single (non-continuous heating) unit combinations.
▪ Multi (continuous heating) unit combinations: restrictions exist.
For more information, see
For more specifications, see technical engineering data.
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.
refrigerant" [
"15.4.3 Possible combinations of outdoor
5 About the system
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units" [ 62].
Installer and user reference guide
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