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16
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Special requirements for R32 units
16 Special requirements for R32 units
In this chapter
16.1 Installation space requirements
16.2 System layout requirements
Installer and user reference guide
60
16.1
Installation space requirements.............................................................................................................................................
16.2
System layout requirements ..................................................................................................................................................
16.3
To determine the charge limit................................................................................................................................................
WARNING
If the appliance contains R32 refrigerant, the floor area of the room in which the
appliance is stored shall be at least 98.3 m².
NOTICE
▪
Protect pipework from physical damage.
▪
Keep the pipework installation to a minimum.
The VRV 5-S uses R32 refrigerant which is rated as A2L and is mildly flammable.
To comply with the requirements of enhanced tightness refrigerating systems of
the IEC 60335-2-40, this system is equipped with shut-off valves in the outdoor
unit and an alarm in the remote controller. In case the requirements of this manual
are followed, no additional safety measures are needed.
A big range of charge and room area combinations is allowed thanks to the
countermeasures that are implemented in the unit by default.
Follow the installation requirements below to ensure that the complete system is
compliant to legislation.
Outdoor unit installation
The outdoor unit must be installed outside. For indoor installation of the outdoor
unit, additional measures can be necessary to comply with the applicable
legislation.
A terminal for external output is available in the outdoor unit. This SVS output can
be used when additional countermeasures are needed. The SVS output is a contact
on terminal X2M that closes in case a leak is detected, failure or disconnection of
the R32 sensor (located in the indoor unit).
For more information about the SVS output, see
4
outputs" [
115].
Indoor unit installation
NOTICE
If one or more rooms are connected to the unit using a duct system, make sure air
inlet AND outlet are connected directly to the same room by ducting. Do NOT use
spaces such as a false ceiling as a duct for the air inlet or outlet.
"20.3 To connect the external
RXYSA4~6A7V/Y1B
VRV 5-S system air conditioner
4P600330-1D – 2023.02
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