About The System; System Layout - Daikin VRV IV Q+ Series Installer And User Reference Manual

5 About the system

In this chapter

5.1 System layout

RXYQQ8~20U7Y1B
VRV IV Q+ series heat pump
4P546229-1A – 2020.10
The indoor unit part of VRV IV replacement 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.
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 replacement
heat pump system (not exhaustive list, depending on outdoor unit model and
indoor unit model combinations):
▪ VRV direct expansion (DX) indoor units for R410A (air to air applications).
▪ AHU (air to air applications): EKEXV-kit+EKEQ-box are required, depending on the
application.
▪ VRV direct expansion (DX) indoor units for non-R410A (air to air applications).
See "Possible combinations of indoor
Airhandling unit connection in pair to VRV IV replacement heat pump outdoor unit
is supported.
Airhandling unit connection in multi to VRV IV replacement heat pump outdoor
unit is supported, even combined with VRV direct expansion indoor unit(s).
For more specifications, see technical engineering data.
5.1 System layout..........................................................................................................................................................................
a
e
c
b
d
a VRV IV replacement heat pump outdoor unit
b Refrigerant piping
c VRV direct expansion (DX) indoor unit
d User interface (dedicated depending on indoor unit type)
e Cool/Heat changeover remote control switch
4
units" [ 57].
c
d
5 About the system
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Installer and user reference guide
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