Multi F Outdoor Condenser Installation Manual

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MULTI F / MULTI F MAX Outdoor Unit Installation Manual
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MULTI
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MAX
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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.
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• Install a mechanical ventilator linked to a gas leak detector.
• Change the indoor unit type (wall mounted to ceiling cassette) / position.
Figure 104: Examples of Zones.
Figure 105: Example of Acceptable Ventilation Methods.
Mechanical Ventilator Linked
to a Gas Leak Detector
Ventilation Inlet / Outlet
Indoor Unit
Indoor Unit
Smallest Zone
in System
Indoor Unit Indoor Unit
Outdoor Unit
Outdoor Unit
Indoor Unit
Opening
Partition
Zone includes partition
(but no door), or includes
openings ≥0.15% of floor
volume (openings can be
located both above and
below the door)
Outdoor Unit
Indoor UnitIndoor Unit Indoor Unit Indoor Unit
Without Partition. With Partition / With Opening to
Adjoining Room.
With Partition / Without Opening to
Adjoining Rooms.
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FINAL INSTALLATION PROCEDURES
See also the LG HVAC Building Ventilation Guide on www.lghvac.com.