About The Outdoor Unit; System Layout - Daikin VRV IV Q+ Series 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
(a) For RXYQQ, there is no restriction on use as multi module.
This installation manual concerns the VRV IV, full inverter driven, heat pump
system for replacement purposes.
Depending on the situation, the existing refrigerant piping of a previous
installation, or in some cases even indoor units, can be reused.
Model line up:
Model
RXYQQ8~20
RXYQQ22~42
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.
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 132 kW and in cooling till 118 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
a
e
c
b
d
a VRV IV replacement heat pump outdoor unit
Explanation
Description
Single unit model.
Multi unit model (consisting of 2 or 3 RXYQQ*
modules).
4
units" [ 57].
c
d
"Possible
RXYQQ8~20U7Y1B
VRV IV Q+ series heat pump
4P546229-1A – 2020.10