Daikin VRV II Series Design, Installation & Testing Instructions page 110

Caution for Refrigerant Leaks
Step 4: Dealing with situations where the result exceeds the dangerous concentration level.
Where the installation of a facility results in a concentration in excess of the dangerous
concentration level then it may be necessary to revise the system design to dome extent or else
take one of the following courses of action.
Action 1: Making openings which will allow the air to flow freely into the room.
Action 2: Fit a mechanical ventilator linked to a gas leak detection alarm device.
Notes: This precaution shows the requirement of EN.
The precaution should be followed in accordance of local code.
104
Make openings above and below the door which are each equivalent in size to 0.15%
or more of the floor area or make a doorless opening.
Action 2: Gas
leak detection
alarm device and
mechanical
ventilator
Indoor nit Action 1: Make
openings
sufficiently large
to permit free flow
of air
Si39-303
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