About The Outdoor Unit; System Layout - Daikin VRV IV+ Installer And User Reference Manual

16 | About the units and options

16.3 About the outdoor unit

16.4 System layout

Installer and user reference guide
56
Code
U7 Model series
Y1 Power supply
B European market
[*] Minor model change indication
This installation manual concerns the VRV IV, full inverter driven, heat recovery
system.
Model line up:
Model
REYQ8~20
REMQ5
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.
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
combinations of indoor
Explanation
Description
Heat recovery model for single or multi-use
Heat recovery model for multi-use only
4
units" [ 58].
"Possible
REYQ8~20+REMQ5U7Y1B
VRV IV+ heat recovery
4P561154-1A – 2020.10