Daikin VRV IV Series - System Layout; Combining Units and Options

14 | About the units and options
Installer and user reference guide
55
RKXYQ5T8+8T7Y1B + RDXYQ5T8+8T7V1B
VRV IV heat pump for indoor installation
4P499898-1B – 2021.12
Specification 5HP 8HP
Maximum capacity Heating 16.0kW 25.0kW
Cooling 14.0kW 22.4kW
Outside ambient design
temperature
Heating –20~15.5°CWB
Cooling –5~46°CDB
Ambient design temperature of compressor unit
and heat exchanger unit
5~35°CDB
Maximum relative
humidity around the
compressor unit and heat
exchanger unit
Heating 50%
(a)
Cooling 80%
(a)
(a) To avoid condensation and water dripping out of the unit. If the temperature or the
humidity is beyond these conditions, safety devices may be put in action and the air
conditioner may not operate.
14.4 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 "14.5.2Possible
combinations of indoor units"[456].
d d
c c
a
b
VRV DX VRV DX VRV DX EKEXV
AHU
d d
1 2
1 In case of VRVDX indoor units
2 In case of VRVDX indoor units combined with an air handling unit
a Heat exchanger unit
b Compressor unit
c Refrigerant piping
d User interface (dedicated depending on indoor unit type)
VRVDX VRV direct expansion (DX) indoor unit
EKEXV Expansion valve kit
AHU Air handling unit
14.5 Combining units and options
INFORMATION
Certain options may NOT be available in your country.