Daikin VRV IV+ - 16.3 About the Outdoor Unit

16 | About the units and options
Installer and user reference guide
56
REYQ8~20+REMQ5U7Y1B
VRV IV+ heat recovery
4P561154-1A – 2020.10
Code Explanation
U7 Model series
Y1 Power supply
B European market
[*] Minor model change indication
16.3 About the outdoor unit
This installation manual concerns the VRV IV, full inverter driven, heat recovery
system.
Model line up:
Model Description
REYQ8~20 Heat recovery model for single or multi-use
REMQ5 Heat recovery model for multi-use only
Depending on the type of outdoor unit which is chosen, some functionality will or
will not exist. It will be indicated throughout this installation manual and brought to
your attention. Certain features have exclusive model rights.
These units are intended for outdoor installation and aimed for heat pump
applications including air to air and air to water applications.
These units have (in single use) heating capacities ranging from 25 to 63kW and
cooling capacities rating from 22.4 to 56 kW. In multi combination the heating
capacity can go up till 168kW and in cooling till 150kW.
The outdoor unit is designed to work in heating mode at ambient temperatures
from –20°CWB to 15.5°CWB and in cooling mode at ambient temperatures from –
5°CDB to 43°CDB.
16.4 System layout
NOTICE
Design of the system must not be done at temperatures below –15°C.
INFORMATION
Not all combinations of indoor units are allowed, for guidance, see "Possible
combinations of indoor units"[458].