LG MULTI V ARNU243TTD4 - Page 38

38 | TWO-WAY
MULTI V Ceiling Cassette Indoor Unit Engineering Manual
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A single indoor unit has the capability of being controlled by up to
two local wired controllers. The microprocessor controls space tem-
perature using the value provided by the temperature sensor sens-
ing a space temperature that is farthest away from the temperature
set-point. The microprocessor control provides a cooling or heating
mode test cycle that operates the unit for 18 minutes without regard
to space temperature. If the system is provided with an optional
wall-mounted or central controller, displayed diagnostic codes are
specific, alpha numeric, and provide the service technician with the
reason for the code displayed.
Indoor units are Wi-Fi compatible with the addition of an LG Wi-Fi
module accessory, and can be controlled by LG’s Smart ThinQ™
app on a smart device. A field-supplied Wi-Fi network and smart
device are required. The Smart ThinQ app is free, and is available
for Android™ and iOS. (Android is a trademark of Google LLC.)
Condensate Lift/Pump
The indoor unit is provided with a factory installed and wired
condensate lift/pump capable of providing a maximum 27-1/2 inch
lift from the bottom surface of the unit. The lift pump comes with a
safety switch that will shut off the indoor unit if condensate rises too
high in the drain pan.
Condensate Drain Pan
The condensate drain pan is constructed of EPS (expandable poly-
styrene resin).
Mechanical Specications
TWO-WAY CEILING CASSETTE
Coil
The indoor unit coil is constructed with grooved design copper tubes
with slit coil fins, two (2) rows, twenty (20) fins per inch.
Controls Features
• Auto changeover (Heat Recovery only)
• Auto operation
• Auto restart
• External on/off control
• Dual thermistor control
• Dual set-point control
• Filter life display
• Multiple auxiliary heater applications
• Group control
• High ceiling
• Hot start
• Self diagnostics
• Timer (on / off)
• Weekly schedule
• Auto direction / swing (up /down)
• Fan speed control
• Jet cool (fast cooling)
• Auto fan
• Leak detection
• Wi-Fi compatible