About The Outdoor Unit; System Layout - Daikin VRV IV W+ 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
52
Code
B European market
[*] Minor model change indication
This installation manual concerns the VRV IV water-cooled system air conditioner.
The unit is full inverter driven, and can be used for cooling, heat pump and heat
recovery applications.
Model line up:
Model
RWEYQ8~14
Depending on the chosen type of unit, 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 indoor installation and aimed for heat pump
applications including water to air and water to water applications.
These units have (in single use) heating capacities ranging from 25 to 45 kW and
cooling capacities ranging from 22.4 to 40 kW. When multi combination is used,
the capacity can go up to 135 kW for heating and 120 kW for cooling.
The unit is designed to work in heating mode at indoor temperatures from
15°C WB to 27°C WB and in cooling mode at indoor temperatures from 21°C DB to
32°C DB or 14°C WB to 25°C WB.
The ambient temperature around the unit should be above 0°C DB and below
40°C DB. Relative humidity around the unit should be below 80%.
The water temperature at the water inlet of the unit must be between 10°C and
45°C. The lower limit is extendable down to –10°C (heating operation mode) in
case the brine type setting [2‑50] is set for use with brine as heat source medium.
INFORMATION
Not all combinations of indoor units are allowed, for guidance, see
combinations of indoor
Heat pump system
i
b
c
a
g
j
a Unit
b Refrigerant piping
c VRV DX indoor unit
d Low temperature (LT) Hydrobox unit
Explanation
Heat recovery model for single or multi-use
4
units" [ 54].
d c e c
f
g g
h
Description
"16.5.2 Possible
c
g g
VRV IV water-cooled system air conditioner
4P452191-1B – 2020.10
RWEYQ8~14T9Y1B