LG LV-B2461CL User manual

Room Air Conditioner
(Convertible Type)
SERVICE MANUAL
MODEL: LV-B2461CL/ 2461HL
LV-B1861CL/ 1861HL

Contents
Functions .................................................................................................................................3
Product Specifications (Cooling Only)..................................................................................5
Product Specifications (Cooling & Heating).........................................................................6
Dimensions..............................................................................................................................7
Refrigeration Cycle Diagram..................................................................................................9
Wiring Diagram......................................................................................................................11
Operation Details ..................................................................................................................13
Display Function ...................................................................................................................21
Self-diagnosis Function........................................................................................................21
Installation .............................................................................................................................22
Operation ...............................................................................................................................39
Disassembly of the parts (Indoor Unit) ...............................................................................41
2-way, 3-way Valve.................................................................................................................45
Cycle Troubleshooting Guide...............................................................................................52
Electronic Parts Troubleshooting Guide.............................................................................53
Electronic control device......................................................................................................57
Schematic Diagram ...............................................................................................................58
Exploded View and Replacement Parts List.......................................................................59
–2–

Functions
•Room temperature sensor. (Thermistor)
•Maintains the room temperature in accordance with the Setting Temp.
•Indoor fan is delayed for 5 seconds at the starting.
•Restarting is inhibited for approx. 3 minutes.
•High, Med, Low, Chaos
--- Lights up in operation
--- Lights up in Sleep Mode
--- Lights up in Timer Mode
--- Lights up in Deice Mode or Hot Start Mode (only Heating Model)
--- Lights up during compressor running
(only Cooling Model)
•Intermittent operation of fan at low speed.
•The fan is switched to low(Cooling), med(Heating) speed.
•The unit will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.
•The fan is switched to intermittent or irregular operation
•The fan speed is automatically switched from high to low
speed.
•The louver can be set at the desired position or swing
up and down, right and left (not on all models) automatically.
•The setting temperature, indoor fan speed and desired
operation made are automatically set by fuzzy rule.
Indoor Unit
Operation ON/OFF by Remote controller
Sensing the Room Temperature
Room temperature control
Starting Current Control
Time Delay Safety Control
Indoor Fan Speed Control
Operation indication Lamps (LED)
Soft Dry Operation Mode
•Both the indoor and outdoor fan
stops during deicing.
•Hot start after deice ends.
•The indoor fan stops until the
evaporator piping temperature
will be reached at 28°C.
Deice (defrost) control (Heating)
Hot-start Control (Heating)
Sleep Mode Auto Control
Natural Air Control by CHAOS Logic
Airflow Direction Control
Auto Operation
–3–

–4–
Soft Dry Operation Mode.( )
Remote Controller
Operation ON/OFF
Reset
Operation Mode Selection
Fan Speed Selection
Room Temperature Display
Temperature Setting
Setting the Time or Timer
Timer Selection
Timer Setting
Timer Cancel
Sleep Operation
Airflow Direction Control
(Cooling
model only) (Heating
model only)
TEMPERATURE LOW HIGH
(Low) (Med) (High) (CHAOS)
Cooling Operation Mode.( )
Heating Operation Mode.( )
Auto Operation Mode.( )
Fan Operation Mode
ON OFF
SET
CANCEL
: High:39°C↔LOW:11°C
: OFF, ON, OFF ↔ON
: Cancel Sleep Mode, Timer ON or Timer OFF.
: 1, 2, 3, 4, 5, 6, 7hr, Off Timer
: Fan Operates without cooling. (Cooling model only)
Cooling Heating
Down to 18°C
Up to 30°C,
Down to 16°C
Up to 30°C,

Product Specifications (Cooling Only)
Model Name
Item Unit
Cooling Capacity Btu/h(kcal/h) 18,000(4,536) 24,000(6,048)
Moisture Removal ℓ/h 2.5 3.5
Power Source
ø , V, Hz 1ø,220-240V, 50Hz
Indoor 14.0 16.0
Outdoor 50 50
Input W 1,935 2,500
Running Current A 9.0 11.9
E.E.R. Btu/h-W 9.3 9.6
Indoor 1,200 x 205 x 615
Outdoor 870 x 655 x 320
Indoor 30
Outdoor 57 57
Refrigerant (R-22) g 880 1,550
Airflow Direction Control (Up & Down) 󱇩󱇩
Remocon Type L.C.D Wireless
Liquid 1/4" (6.35) 1/4" (6.35)
Gas 1/2" (12.7) 5/8" (15.88)
Sleeping Operation 󱇩󱇩
Drain Hose 󱇩󱇩
Connecting Wire 0.75mm2󱈉
Main Power Cable 1.5mm2󱈉2.5mm2󱈉
(2.0mm2:for the Middle East)
Time Delay Safety Function 󱇩
Air Circulation 󱇩
Soft Dry 󱇩
Fan Speed (Indoor) 3 (Hi, Med, Low)
Timer 24Hrs
Self-Diagnosis 󱇩
Auto-Restart 󱇩
Air Circulation m3/min
Dimensions
(W×H×D)
Net. Weight
mm
kg
LV-B1861CL LV-B2461CL
–5–
Service Valve &
Connecting Tube