LG LV-C3681CL_HL / LV-D4881CL_HL / LV-D6081CL_HL Service Manual ▷ View online
–13–
(5) Remove unit from carton and carefully place the unit mounting bolts into the bracket-hanger’s slot and after all
the four (4) bolts are in the slots, push the unit backward slowly. Secure the unit on the bracket-hanger by tight-
ening the four (4) bolts.
ening the four (4) bolts.
Condensate drain
(1) Be sure the unit is reasonably level and pitched toward the drain to ensure proper drainage.
(2) Piping material
(2) Piping material
(A) Soft vinyl chloride pipe 22mm nominal pipe size.
(B) Hard vinyl chloride (PVC) coupling 22mm nominal pipe size.
(B) Hard vinyl chloride (PVC) coupling 22mm nominal pipe size.
(3) Connect the soft hard vinyl chloride pipe to the coupling, see fig.4
(4) The indoor unit uses gravity to drain; therefore the piping outside the unit should slope downward.
(5) “Important” avoids draining as shown in fig.5
(4) The indoor unit uses gravity to drain; therefore the piping outside the unit should slope downward.
(5) “Important” avoids draining as shown in fig.5
Refrigerant piping
(1) Connections to the indoor unit are flared connection.
(1.1) Make flared joints for both suction and liquid line .
(1.2) Ensure tube and fitting are in line with one another before tightening nut to provide concentric seating of tube
(1.1) Make flared joints for both suction and liquid line .
(1.2) Ensure tube and fitting are in line with one another before tightening nut to provide concentric seating of tube
on fitting to prevent leakage.
(2) The liquid line and suction line should be run according to piping design as shown in fig.4
(3) Brazing should be performed with a constant purge of nitrogen through the piping. This is to keep inside of tub-
(3) Brazing should be performed with a constant purge of nitrogen through the piping. This is to keep inside of tub-
ing clean.
(4) Insulate suction and liquid line separately to prevent sweating .
NOTE: The piping may also be run around the rear of the unit so as to exit on the left Hand side.
(5) Use two spanners to connect the flare nut connection to the indoor unit. See fig.5
Fig. 3
Fig. 2
Fig. 4
Fig. 5
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(6) Permissible piping for recommended combinations.
(A) Total maximum of up to 20m.
(B) Limit the number of bends in piping to less than 8.
(C) Piping fall, up to 15m see fig.6
(D) Piping head up to 8m see fig.6
(B) Limit the number of bends in piping to less than 8.
(C) Piping fall, up to 15m see fig.6
(D) Piping head up to 8m see fig.6
(7) Gas leak test.
Check all the brazed and flare connections for gas leaks.
Electrical wiring
(1) Be sure to supply power from a dedicated power outlet.
(2) Wiring should be made in accordance with the applicable local codes.
(3) Ground both indoor and outdoor units.
(4) Check for correct correspondence in terminal numbers between the indoor and the outdoor units.
(5) Indoor wiring connections.
(2) Wiring should be made in accordance with the applicable local codes.
(3) Ground both indoor and outdoor units.
(4) Check for correct correspondence in terminal numbers between the indoor and the outdoor units.
(5) Indoor wiring connections.
Refer to wiring diagram for the wire connections.
Important
(1) Secure the cables with a cable clamp after connecting them to the terminal block.
(2) Authorized electricians can execute power cabling only.
(3) The remote controller is located inside the unit behind the return air filter.
(2) Authorized electricians can execute power cabling only.
(3) The remote controller is located inside the unit behind the return air filter.
Installation
When mounting the indoor unit on the ceiling, floor or wall follows the instructions below:
(1) Select a location that permits the air current to circulate evenly throughout the room.
(1) Select a location that permits the air current to circulate evenly throughout the room.
Fig. 6
Fig. 7
Fig. 8
BAD LOCATION OBLIQUE-LENE
AREA ARE NOT WELL-COOLED
GOOD LOCATION
EVENLY COOLED
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(2) Service space when the unit is mounted under the ceiling.
(3) Service space when the unit is mounted on the floor/wall.
Air flow direction adjustment
(1) To adjust the upward/downward direction of the air current, move the horizontal louver. Careful to ensure the
louver is not positioned so as to completely cut off the air flow from the unit.
(2) To adjust the lateral direction of air currents activate the air sweep motor.
Start-up instruction
(1) Following are the only approved combinations.
(2) Please refer to condensing unit I.O.M. for full start - up instructions .
(3) Caution R22 charging: Please refer to the appropriate condensing unit installation and instruction manual.
(2) Please refer to condensing unit I.O.M. for full start - up instructions .
(3) Caution R22 charging: Please refer to the appropriate condensing unit installation and instruction manual.
Filter removal for cleaning
(1) Push down on clip at the top of the grill.
(2) Swing down the grill on the hinge and remove the filter for cleaning.
(2) Swing down the grill on the hinge and remove the filter for cleaning.
300
mm
300
mm
Fig. 9
Fig. 10
Fig. 11
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REMOTE CONTROL OPERATION
TIMER
ON
HOUR
WARM
MIN
COOL
SWING
SLEEP
OFF
LOW
MED
HIGH
AUTO
COOL
FAN
HEAT
FAN
SWING
SLEEP
COOL HEAT
ON
OFF
TIMER
FAN
HR.
SWING
SLEEP
COOL
CLOCK
AUTO
T
E
E
M
P
ON / OFF
MODE
FAN
FAN
SWING
SLEEP
COOL HEAT
ON
OFF
TIMER
HR.
CLOCK
AUTO
LCD DISPLAYS
ON/OFF
Press button to set timer mode.
TRANSMISSION SOURCE
Used for sending control signal to
the air conditioning unit.
the air conditioning unit.
FAN BUTTON
Press button to select low, Medium,
High or Auto speed.
High or Auto speed.
MODE BUTTON
Press button to select Cool, Fan or
Heat mode.
Heat mode.
ON/OFF BUTTON
Pressing this button will turn the air-
conditioning unit on or off.
conditioning unit on or off.
LCD DISPLAY
SWING BUTTON
Air distributor in all modes.
SLEEP BUTTON
Sleep mode will automatically
adjust temperature and save
energy when you are sleeping.
adjust temperature and save
energy when you are sleeping.
HOUR BUTTON
Press button to increase the time
1 hour a step (24 hours).
1 hour a step (24 hours).
MINUTE BUTTON
Press button to increase the time
10 minutes a step in timer mode
and 1 minute a step in real time
clock.
10 minutes a step in timer mode
and 1 minute a step in real time
clock.
WARM BUTTON
Press button to increase
temperature 1
temperature 1
°
C a step
(Max. 30
°
C).
COOL BUTTON
Press button to decrease
temperature 1
temperature 1
°
C a step
(Min. 15
°
C).
MODE
FAN, COOL, HEAT
FAN, COOL, HEAT
SIGNAL SENDING
SET TEMP
SLEEP
SWING
FAN SPEED
AUTO
LOW-MED-HI
TIMER ON/OFF
CLOCK
HOUR & MINUTE
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