LG LC247HV Engineering Manual page 6

arCHiteCtural aPPeal
convergence of technological Innovation with Flexibility and Style
Four-Way Ceiling-Cassette DFS
Systems
A four-way ceiling-cassette DFS system provides a system designer
an edge to engineer a system with many user-adjustable settings.
Four-way ceiling cassette systems features a ceiling-recessed
indoor unit case and an off-white architectural grille (required; sold
separately) that is flush mounted, providing a clean look to the
room. These systems are 208-230V/60Hz/1PH systems, available
in a nominal capacities of 1-1/2, 2, 3, and 3-1/2 tons, and are best
suited in light commercial applications or large, open spaces. The
ceiling cassette indoor unit is a useful alternative when wall space is
limited.
inverter technology
LG four-way ceiling cassette air-source systems offer zoning without
the need for zone damper systems. The advanced controls of the
four-way ceiling cassette system provide exceptional zone dehumid-
ification and temperature control, and can rapidly adapt system op-
erating parameters to the ever changing building load. Single-zone
four-way ceiling cassette systems are easy to design, install, and
maintain. The design allows occupants to control their environmental
condition, providing individualized control of the set-point tempera-
ture and allowing occupants to condition only the occupied zones.
Benefits of Four-Way Ceiling Cassette Systems
• Inverter technology
• Available in 18,000, 24,000, 36,000, 42,000 Btu/h capacities
• All-season use—heat pump models for both cooling and heat-
ing capabilities
• Operating ranges for outdoor units of 5°F (DB) to 118°F for
cooling; 0°F to 64°F (WB) for heating
• Operating ranges for indoor units of 64°F to 86°F for cooling;
60°F to 86°F for heating
• Quiet operation inside and outside
6 | IntroductIon
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG" is a registered trademark of LG Corp.
Inverter variable-speed compressors are also measurably quieter
and consume less energy than those in conventional air condi-
tioners. The Inverter compressor ramps up or down to match the
required room capacity and maintain the comfort level. When the
selected temperature is reached, the inverter compressor operates
at low speed to maintain that comfort level, thereby using less
energy.
adaptable and Flexible
Four-way ceiling-cassette DFS systems allow cooling or heating
for a single room without the need for extensive remodeling. Long
refrigerant piping lengths allow for extra design flexibility in indoor
unit installation. These units may be used for a number of residential
or commercial environments such as:
• Older homes
• New home construction
• Office buildings
• Restaurants
• Hospitals / Medical facilities
• Schools
• Nursing homes
• Retail establishments
• Houses of worship
Figure 1: Four-Way Ceiling Cassette System.