About The System; System Layout - Daikin RDXYQ5T8V1B Installer And User Manual

5 About the system

In this chapter

5.1 System layout

RKXYQ5T8+8T7Y1B + RDXYQ5T8+8T7V1B
VRV IV heat pump for indoor installation
4P499898-1B – 2021.12
The VRV IV heat pump for indoor installation can be used for heating/cooling
applications.
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.
In general following type of indoor units can be connected to a VRV IV heat pump
for indoor installation (non-exhaustive list, depending on compressor unit model,
heat exchanger unit model and indoor unit model combinations):
▪ VRV direct expansion (DX) indoor units (air to air applications).
▪ AHU (air-to-air applications): EKEXV-kit+EKEQM-box required, depending on the
application.
▪ Comfort air curtain (air-to-air applications): CYV (Biddle) series.
Airhandling unit connection in pair to VRV IV heat pump for indoor installation is
supported.
Airhandling unit connection in multi to VRV IV heat pump for indoor installation is
supported, even combined with VRV direct expansion indoor unit(s).
For more specifications, see technical engineering data.
5.1 System layout..........................................................................................................................................................................
a
c c
b
1 In case of VRV DX indoor units
2 In case of VRV DX indoor units combined with an air handling unit
a Heat exchanger unit
b Compressor unit
c Refrigerant piping
d User interface (dedicated depending on indoor unit type)
VRV DX VRV direct expansion (DX) indoor unit
EKEXV Expansion valve kit
AHU Air handling unit
1
VRV DX VRV DX VRV DX
d d d
5 About the system
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2
EKEXV
AHU
d
Installer and user reference guide
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