System Layout - Daikin VRV 5 RXYA8A7Y1B Installer And User Manual

5 | About the system

5.1 System layout

Installer and user reference guide
28
NOTICE
It is NOT allowed to cool technical rooms like server rooms and data centres, where
year-round cooling is required.
Your VRV 5 heat pump series outdoor unit can be one of following models:
Model
RXYA8~12
RXYA14~20
RYMA5
For more information, see
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
a b
j
h
d
e i
a Heat pump outdoor unit
b Safety valve unit (SV)
c VRV direct expansion (DX) indoor unit
d VRV direct expansion (DX) indoor unit (direct connection from outdoor to indoor)
e Remote controller in normal mode
f Remote controller in alarm only mode
g Remote controller in supervisor mode (mandatory in some situations)
h Centralised controller (optional)
i Option PCB (optional)
j Cool/heat changeover remote control switch (optional)
Refrigerant piping
Interconnection and user interface wiring
Direct connection of indoor units to the outdoor unit
Heat pump model, for single or multi-use
Heat pump model, for single use (standalone unit)
Heat pump model, only for multi-use and only for
standard combinations
"15.4.3 Possible combinations of outdoor
c c
e e
g
i i
Description
units" [
c
e
f
i
RYMA5+RXYA8~20A7Y1B
VRV 5 heat pump
4P749918-1 – 2023.12
4
62].