Multi F Ceiling Cassette Installation Manual

50
Multi F Ceiling Cassette Indoor Unit
Due to our policy of continuous product innovation, some specifications may change without notification.
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MUL
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Assigning the Thermistor for
Temperature Detection
Each indoor unit includes a return air thermistor assigned to sense the temperature. If a wired controller is installed, there is a choice of sensing
temperature with either the indoor unit return air thermistor or the thermistor in the wired controller. It is also an option to set both thermistors to
sense temperature so that indoor unit bases its operation on the rst thermistor to reach the designated temperature differential.
An optional Remote Temperature Sensor can be used in lieu of the return air thermistor—either alone or in conjunction with a wired controller
thermistor as previously described.
Hanging the Wired Controller, continued.
• Connect indoor unit and wired controller using included connection cable.
• Use an LG-manufactured extension cable (sold separately) if the distance between wired remote controller and the indoor unit is >32.8
feet.
Verify if the Cable is Properly Connected.
Connecting Cable
Indoor
Unit Side
12V Red
Signal Yellow
GND
Black
Figure 72: Indoor Unit to Wired Controller Connection (Controller Appearance May Vary Depending on Model Chosen).
Note:
• Do not bury the wired controller into the wall; burying it may damage the temperature sensor.
• Do not extend the connecting cable >164 feet; overly long cable lengths can cause communication errors.
• When installing the LG-manufactured extension cable, make sure to connect the proper ends together.
ELECTRICAL WIRING
Controller Options