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11,500 BTU Thru-the-Wall Air Conditioner with remote

  • LT123HNR

Key Features

  • Universal Fit for Sleeve
  • Gold Fin Anti-Corrosion
  • 2 cooling and fan speeds
  • 4-way air direction
PERFORMANCE
EER 8.8 / 8.8
Dehumid. (Pts/Hr) 3.8
Dry Air Flow (CFM) 290
dBA Level (Indoor / Outdoor) 52 / 61
BTU Performance Cooling 11,500 / 11,200
BTU Performance Heating 11,200 / 9,200
DIMENSIONS
Net Weight (lbs.) 80
Shipping Weight (lbs.) 87
Carton Height (inch) 18 4/32
Carton Width (inch) 27 23/32
Carton Depth (inch) 22 13/32
Dimension Height (inch) 14 13/32
Dimension Width (inch) 24 21/32
Dimension Depth (inch) 19 21/32
FEATURES
Thermostat Control Thermistor
Air Deflection 4-Way
Remote Control Yes
Energy Saver Function Yes
Programmable Timer 24Hr, On/Off
Fan Speed: Cooling (Heating) 3
Compressor Rotary
Indoor Fan Type Turbo
Type Air Discharge Top
Outdoor Vent / Exhaust Yes
Chassis Type XA
Auto Restart Yes
Fan Only 3
Real Grille Yes
ELECTRICAL RATINGS
Voltage / 60 Hz 208/230
Watts (Cooling) 1,310/1,270
Watts (Heating) 3,500/2,900
Rated Amps (Cooling) 6.0/6.4
Rated Amps (Heating) 15.3/14.0
WARRANTY
Warranty 1 Year Parts and Labor(Limited In-Home Service)

What People Are Saying

Rated 3.8 out of 5 by 4 reviewers.
Rated 1 out of 5 Not worth the money Unit stopped working after a year of minimal service. Unit was out of warranty and repair cost was prohibitive. November 12, 2013
Rated 5 out of 5 by all instructions are accurate. am very pleased with the way the unit fits the wall sleeve and its great performance. November 18, 2012
Rated 5 out of 5 by Excellent for my need Added a sunroom on, 200 sq ft, with a 7 windows and a sliding glass door. Cools excellent. Leave the door open from the main house, leave the LG in power saver mode, can't even tell a difference in the temps. To me, it is just a little bit loud, but ok. September 18, 2011
Rated 4 out of 5 by Just in time! My family has been so lucky to have this A/C unit. We picked up one of the last dusty old boxes at Lowe's during a heatwave. Since then we've run this thing day and night for 4 to 7 days in a stretch and it always does a great job keeping us comfortable. September 16, 2011
1-4 of 4

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14 Questions & 20 Answers

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2 answers

is the cord on the right or left side of the back wall?

3 years, 1 month ago
User Name:
Anonymous
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Answer: 
Cord is on the front right side. The unit is installed through the wall where most of the unit is actually outside, which is important because water collects in the unit pan from dehumidification. If the unit is not installed properly water could run to the inside of the room or in your walls.
Gender: male
2 years, 5 months ago
User Name:
OceanCrest
NC
 
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Answer: 
Generally speaking, the power cord come out from the left side as you are facing the unit.

Design, features and specifications subject to change without notice.
Gender: female
3 years, 1 month ago
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AmandaB
 
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Can a through the wall be mounted on a window?

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3 years, 1 month ago
User Name:
Ray
Texas
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Answer: 
Not recommended, as this unit requires an additional sleeve for the warranty. However, if you use a sleeve with the unit, it could work. Just be aware of how heavy the unit is and support it well. I have done it as a temporary solution but would be concerned with it braking a window if not supported properly.
Gender: male
2 years, 5 months ago
User Name:
OceanCrest
NC
 
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Answer: 
Thank you for your question. Yes this unit can be installed and mounted on a window but LG would not provide mount instructions or materials needed to do the installation.
Gender: male
3 years, 1 month ago
User Name:
Stan
 
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Can I use this product on my 220 line?

The plug does not match my receptacle - the company I purchased from, Compact Appliance, will not return my email.
What recourse do I have?
3 years ago
User Name:
LN
New York
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Answer: 
If you bought the 220v unit. For 220v there are several types of outlets. You just need to replace you wall receptacle with the correct type. Any h/w store will have the correct one (less than a dollar usually). If you are not comfortable around electricity call an electrician.
Gender: male
2 years, 5 months ago
User Name:
OceanCrest
NC
 
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Answer: 
Thank you for contacting LG. The plug on the unit can not be changed or modified and therefore if your plug does not match you may attempt to return the product or have a qualified electrician change your plug to match and meet the electrical requirements of the unit purchased. Page 9 on the manual should list the requirements needed.
3 years ago
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CustomerAdvocate10
 
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Is this unit sufficient to heat and cool a 500 square foot area

2 years, 10 months ago
User Name:
Steve
Delaware
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Answer: 
In most cases you will not have a problem (depends on insulation). I use them in my motel on the beach and even with the sliding doors being left open and the customers constantly in and out, I don't get complaints.
Gender: male
2 years, 5 months ago
User Name:
OceanCrest
NC
 
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Answer: 
This is a difficult determination to make without being onsite. It will depend upon which side of the building it is on, and whether or not the air conditioner will be in direct sunlight. Also, how insulated is the room? Is the space above the room a finished room, or is it attic space? A 12,000 BTU air conditioner can sometimes cool a 500 square foot area, depending upon the specifics of the room.
2 years, 10 months ago
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NeilE
 
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Why doesn't the fan shut off?

Model LT123, Air/Heat unit
After reaching temperature setting for heat, the fan stays running,Therefore pushing cold air around the room, this results in cooler air movement,which is not really the desired comfort that we were anticipating, Is there something that can be done about this?
Thanks, Larry
2 years, 9 months ago
User Name:
Larry
United States
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Answer: 
In cooling and heat mode the fan stay on so it can circulate the air evenly throughout the room. If the fan was off once unit reaches the temperature, the room could have "hot spots". You should turn the vents on the unit so the air does not blow directly on you so you won't feel it. also a ceiling fan helps to controll the temperature throughout the room. The energy saving mode works only in the cooling cycle and does turn off the fan.
Gender: male
2 years, 5 months ago
User Name:
OceanCrest
NC
 
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Answer: 
We regret your dissatisfaction with the design of this product. It is the intent of the design of this unit, when in the heat mode, to warm the air, and circulate it throughout the room, while taking in more air to heat. However, this can only be done by the continuous circulation of the air in the room. If this is not to your satisfaction, then all we can recommend is turning off the unit when it reaches the desired temperature.
2 years, 9 months ago
User Name:
NeilE
 
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