LG MULTI V S ARUN038GSS4 Installation Manual page 72

CAUTIONS FOR REFRIGERANT LEAKS
To determine the volume of an occupied space, the designer must also determine which ones are connected, not connected, or ventilated
(refer to Standard 34).
If the calculated RCL is above the allowable limit, there are two primary methods used to lower the RCL:
1. Increase the volume of the occupied space.
2. Decrease the size of the refrigerant charge.
Per Standard 34-2007, acceptable methods used to increase the volume of an occupied space include:
• Install transfer ducts between rooms.
•
•
•
•
• Install a mechanical ventilator linked to a gas leak detector.
• Change the indoor unit type (wall mounted to ceiling cassette) / position.
Figure 76: Examples of Zones.
Without Partition.
Indoor Unit Indoor Unit Indoor Unit
Figure 77:
Mechanical Ventilator Linked
to a Gas Leak Detector
Indoor Unit
72
With Partition / With Opening to
Outdoor Unit Adjoining Room.
Indoor Unit Indoor Unit
Opening
Partition
Ventilation Inlet / Outlet
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With Partition / Without Opening to
Outdoor Unit Adjoining Rooms.
Zone includes partition
(but no door), or includes
openings ≥0.15% of floor
Indoor Unit
volume (openings can be
located both above and
Smallest Zone
below the door)
in System
Outdoor Unit
Indoor Unit Indoor Unit