LG LK-1580CH, LK-2580CH, LK-0680CH INSTALLATION INSTRUCTIONS
LK-IM-12
50Hz
SINGLE PACKAGED AIR CONDITIONERS INSTALLATION & MAINTENANCE INSTRUCTIONS
•Please read this instruction sheet completely before installing the product.
•Installation work must be performed in accordance with national wiring standards by authorized personnel only.
Front View
Air Outlet Vents
(Rear)
Air Intake Vents
(Side)
Rear View
Refresh |
Air Hood |
Supply
Return 
P/No.: 3828A30038Z
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TABLE OF CONTENTS
1.The following should be always observed for safety |
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2. |
Dimensional Data ........................................................................................ |
4 |
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3. |
Installation of Unit ....................................................................................... |
6 |
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4. |
Ductwork ...................................................................................................... |
7 |
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5. |
Condensate Drain Piping ........................................................................... |
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6. |
Filter Installation ......................................................................................... |
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7. |
Installation of remote controller ................................................................ |
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8. |
Electrical Wiring ........................................................................................ |
10 |
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9. |
Control Wiring ........................................................................................... |
13 |
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10. |
Start-Up Pre-Start Quick Check List ..................................................... |
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11. |
Test Mode Procedure .............................................................................. |
16 |
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12. |
Trial Run Mode ........................................................................................ |
18 |
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13. |
Evaporator Fan Adjustment ................................................................... |
19 |
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14. |
Start-up .................................................................................................... |
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15. |
Final installation Checklist and Maintenance ...................................... |
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1.The following should be always observed for safety
•Please report to or take consent by the supply authority before connecting to the system.
•Be sure to read "THE FOLLOWING SHOULD BE ALWAYS OBSERVED FOR SAFETY" before installing the air conditioner.
•Be sure to observe the cautions specified here as they include important items related to safety.
•The indications and meanings are as follows.
WARNING Could lead to death, serious injury, etc.
CAUTION Could lead to serious injury in particular environments when operated incorrectly.
• After reading this manual, be sure to keep it together with the owner's manual in a handy place .
WARNING
Do not install it yourself (customer).
•Incomplete installation could cause injury due to fire, electric shock or leakage of water. Consult the dealer from whom you purchased the unit or special installer.
Install the unit securely in a place which can bear the weight of the unit.
•When installed in an insufficient strong place, noisy operation and distortion could occur.
Use the specified wires to connect the unit and the field installed cut off switch box securely and attach the wires firmly to the terminal so the stress of the wires is not applied to the sections.
• Incomplete connecting and fixing could cause fire.
Check that the refrigerant gas do not leak after installation is completed.
Bodily injury can result from high voltage electrical components or fast moving fan drives. For protection from these inherent hazards during installation and servicing, the electrical supply must be disconnected. If operating checks must be performed with the unit operating, it is the technician's responsibility to recognize these hazards and proceed safely.
Perform the installation securely referring to the installation manual.
•Incomplete installation could cause a personal injury due to fire, electric shock, noisy operation or distortion.
Perform electrical work according to the installation manual and be sure to use an exclusive circuit.
•If the capacity of the power circuit is insufficient or there is incomplete electrical work, it could result in a fire or an electric shock.
Attach the electrical part cover and service panel to the unit securely.
•If the electrical part cover panel are not attached securely, it could result in a fire or electric shock due to dust, water etc.
Be sure to use the part provided or specified parts for the installation work.
•The use of defective parts could cause an injury or leakage of water due to a fire, electric shock etc.
UNIT CONTAINS AN HCFC (R-22) REFRIGERANT Section 608 paragraph C of the 1990 Clean Air Act states:
Effective July 1, 1992 it shall be unlawful for any person, in the course of maintaining, servicing, repairing or disposing of an air conditioning system, to knowingly vent or release any CFC or HCFC refrigerant minimal releases (air purges of refrigerant hoses) associated with good faith attempts to recapture or recycle are exempted from the ban on venting.
CAUTION
The equipment does not contain surge protection. To prevent damage caused by surge, transients appropriate measures should be taken.
Having perfect vacuum process in the factory, our units don't have drier but have filter in the refrigerant circuit. In case of recharging R-22 gas in the field,
"DRIER" must be installed on the liquid line which is connected
from discharge part of condenser to intake part of evaporator. Because the refrigerant circuit is capable of containing water with imperfect vacuum.
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2. Dimensional Data
Single packaged cooling unit are designed for outdoor mounting with vertical condenser discharge. They can be located either at ground level or on roof.
Each unit contains an operating charge of Refrigerant 22 as shipped.
UNIT Dimensions (Figure 1A)
CLEARANCE 34"
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Unit: inch(mm) |
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UNITS |
LK-0580CC/0580HC/0680CH |
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A |
41.93(1065) |
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B |
43.70(1110) |
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C |
50.39(1280) |
F |
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E |
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D |
29.49(749) |
Center Line of Hole |
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G |
E |
9.65(245) |
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D |
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1" Dia. Hole Control Wires |
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F |
2.36(60) |
1.5" Dia. Hole Power Wires |
C |
G |
2.76(70) |
1.5" Dia. Hole Other Purpose |
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UNIT Dimensions (Figure 1B)
CLEARANCE 34"
UNITS |
LK-0880CH/0880HH |
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H |
35.04(890) |
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I |
46.93(1159) |
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J |
85.43(2170) |
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K |
M |
K |
10.43(265) |
L |
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Center Line of Hole |
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L |
2.76(70) |
1.5" Dia. Hole Other Purpose |
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1.5" Dia. Hole Power Wires |
J N |
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M |
2.36(60) |
1" Dia. Hole Control Wires |
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CLEARANCE 46" |
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N |
3.54(90) |
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UNIT Dimensions (Figure 1C)
CLEARANCE 16"(HORIZONTAL)
CLEARANCE 32"(DOWNFLOW)
CLEARANCE 34"
A
B
Figure 1A
CLEARANCE 16"
H CLEARANCE 34"
I
Figure 1B
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Unit: inch(mm) |
CLEARANCE 34" |
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CLEARANCE 16"(HORIZONTAL) |
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UNITS |
LK-1080CH/1080HH |
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a |
41.34(1050) |
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b |
48.89(1242) |
g |
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f |
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e |
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c |
85.43(2170) |
Center Line of Hole |
CLEARANCE 34" |
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a |
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d |
55.0(1397) |
d |
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e |
6.10(155) |
c |
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1" Dia. Hole Control Wires |
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b |
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f |
8.46(215) |
1.5" Dia. Hole Power Wires |
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1.5" Dia. Hole Other Purpose |
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g |
10.43(265) |
CLEARANCE 46" |
Figure 1C |
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Horizontal Application Unit(Figure 1D)
Rear View Showing Duct Openings For Horizontal Air Flow
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Unit: inch(mm) |
CLEARANCE 34" |
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UNITS |
LK-1580CH/1580HH LK-2080CH/2580CH |
CLEARANCE 16"(HORIZONTAL) |
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h |
47.44(1,205) |
65.35(1,660) |
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i |
69.53(1,766) |
74.02(1,880) |
n |
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j |
95.98(2,438) 109.21(2,774) |
m |
CLEARANCE |
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l |
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34" |
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k |
63.11(1,603) |
69.69(1,770) |
Center Line of Hole |
h |
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l |
6.29(160) |
7.68(195) |
k |
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j |
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m |
8.66(220) |
11.89(302) |
i |
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1" Dia. Hole Control Wires |
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1.5" Dia. Hole Power Wires |
Figura 1D |
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n |
11.02(280) |
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1.5" Dia. Hole Other Purpose |
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CLEARANCE 46" |
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Horizontal Application Unit (Figure 1E) |
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Rear View Showing Duct Openings For Horizontal Air Flow |
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Unit: inch(mm) |
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UNITS |
LK-0580CC/0580HC |
LK-0680CH |
A |
13.86(352) |
15.51(394) |
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B |
9.21(234) |
8.43(214) |
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C |
10.47(266) |
10.94(278) |
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D |
3.86(98) |
2.87(73) |
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E |
4.33(110) |
4.33(110) |
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F |
22.28(566) |
24.25(616) |
G |
16.38(416) |
13.15(334) |
Rear View
G |
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F |
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A |
B |
C |
D |
Figure 1E |
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Horizontal Unit (Figure 1F)
Rear View Showing Duct Openings For Horizontal Air Flow
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Unit: inch(mm) |
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UNITS |
LK-0880CH LK-1080CH LK-1580CH LK-2080CH |
S |
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R |
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0880HH |
1080HH |
1580HH |
2580CH |
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a |
15.47(393) |
16.06(408) |
24.53(623) |
25.57(649.5) |
U |
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E |
P |
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T |
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b |
16.18(411) |
14.02(356) |
9.17(233) |
15.28(388) |
P |
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U |
L |
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R |
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c |
18.82(478) |
20.16(512) |
24.53(623) |
27.34(694.5) |
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Y |
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N |
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d |
2.40(61) |
2.44(62) |
2.36(60) |
2.40(61) |
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e |
5.35(136) |
2.01(51) |
5.08(129) |
6.10(155) |
a |
b |
c |
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f |
26.89(683) |
34.33(872) |
40.24(1,022) |
57.09(1,450) |
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Rear View
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d |
Figure 1F
Down Flow Application Unit (Figure 1G) |
3/4" Condensate Location |
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(LK-0580CC, LK-0580HC) |
22,28(566) |
3,82(97) |
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LK-0580CC and LK-0580HC are |
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Convertible Unit |
RETURN |
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SUPPLY |
<![if ! IE]> <![endif]>13,86(352) |
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<![if ! IE]> <![endif]>6,26(159) |
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16,38(416) |
3,82(97) |
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Top View
Unit: inch(mm)
Figure 1G
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3. Installation of Unit |
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3-1. Inspection |
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1) |
Check for damage after unit is unloaded. Report promptly, to the carrier, any damage found to unit. Do |
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not drop unit. |
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2) |
Check the unit nameplate to determine if the unit voltage is correct for the application. Determine if |
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adequate electrical power is available. Refer to the application specifications. |
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3) |
Check to be sure the refrigerant charge has been retained during shipment. Access to 1/4" flare |
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pressure taps may be gained by removing compressor compartment access panel. |
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3-2. Location and Recommendations
1)Unit Support
If unit is to be roof mounted check building codes for weight distribution requirements.
2)Location and Clearances
Installation of unit should conform to local building codes and the National Electrical Code.
Select a location that will permit unobstructed airflow into the condenser coil and away from the fan discharge and permit unobstructed service access into the compressor compartment. Suggested airflow clearances and service clearances are given in Figure 1.
3)Placing and Rigging
Rig the unit using either belt or cable slings. The sling eyelet must be placed through the lifting holes in the base rail of the unit. The point where the slings meet the lifting eyelet should be at least 6 feet above the unit. Use spreader bars to prevent excessive pressure on the top of the unit during lifting.
Important: The use of "spreader bars" is required when hoisting the unit (prevents damage to sides and top). Top crating can be used as spreader bars.
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Recommended |
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Rigging Method |
Lifting Beam |
Spreader Bar |
Lifting Beam |
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Cable |
Cable |
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or Chain |
or Chain |
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Holes in Base Clevis |
Holes in Base Clevis |
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Rail |
Rail |
Figure 2
4)Roof Mounted Units
Downflow units(only 5RT) should be mounted on a roof curb when possible. On new roofs, the curb should be welded directly to the roof deck. For existing construction, nailers must be installed under the curb if welding is not possible. Be sure attach the downflow ductwork to the curb before setting unit in place.
When installing the unit, it must be level to insure proper condensate flow from the unit drain pan.
5)Slab Mount
"For ground level installation, the unit base should be adequately supported and hold the unit near level. The installation must meet the guidelines set forth in local codes."
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4.Ductwork
1.Attaching Downflow Ductwork to The Roof Curb (below 5.0RT)
Supply and return air flanges are provided on the roof curb for easy duct installation. All duct work must be run and attached to the curb before the unit is set into place.
2. Ductwork construction guidelines
Connections to the unit should be made with three-inch canvas connectors to minimize noise and vibration transmission.
Elbows with turning vanes or splitters are recommended to minimize air noise and resistance.
The first elbow in the ductwork leaving the unit should be no closer than three times blower diameter to avoid turbulence and back pressure.
3. Attaching Horizontal Ductwork to the Unit
All conditioned air ductwork should be insulated to minimize heating and cooling duct losses. Use minimum of 2" of insulation with a vapor barrier. The outside ductwork must be weather proofed between the unit and the building.
When attaching ductwork to a horizontal unit, provide a flexible water tight connection to prevent noise transmission from the unit to the ducts. The flexible connection must be indoors and molded out of heavy canvas.
Note: Do not draw the canvas taut between the solid ducts.
IMPORTANT(below 5.0RT)
To convert to downflow, remove covers from the downflow supply and return air opening(painted side out) and secure with sheet metal screw (see Figure 3)
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HORIZONTAL RETURN
AIR COVER
HORIZONTAL SUPPLY |
Figure 3 |
AIR COVER |
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Note:
SUTTLY OPENING
1.Remove the screw nearest to the opening and pull the panel firmly toward the outside of the unit to disengage the back attachment.
RETURN OPENING
2.Remove right hand screw and move panel to the right or remove both screws.
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5. Condensate Drain Piping
A. CONDENSATE DRAIN
A 3/4 inch male condensate drain connection is located on the corner of the unit next to the evaporator section access panel. A trap should be installed and filled with water before starting the unit to avoid air from being drawn through. Follow local codes and standard piping practices when running the drain line. Pitch the line downward, away from the unit, and avoid long horizontal runs. See Figure 4.
Do not use reducing fittings in the drain lines. The condensate drain must be:
1.Made of 3/4" pipe size.
2.Pitched 1/4" per foot to provide free drainage to convenient drain system.
3.Trapped
4.Must not be connected to closed drain system.
Panel Enclosure
3/4 Inch Male
Static pressure
Drain Pan
Cleanout
Plug
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Figure 4
B. OUTDOOR COIL CONDENSATE DRAINAGE PRECAUTION
Condensate drains from the outdoor coil during the heating and defrost cycles. Normally this condensate may be allowed to drain directly onto the ground/roof. A gravel bed is recommended to prevent mud splashing.
WARNING : The unit should not be installed in an area where mud or ice could cause personal injury. Remember that condensate drips from the outdoor coil during heat and defrost cycles and that this condensate freezes when the temperature of the outdoor air is below 0°C(32°F)
6.Filter Installation
■Above 7.5RT
This Unit Filters are anti-bacteria and washable type.
Access to the filters is made by removing the evaporator fan access panel. Each unit ships with free filters, as determined by unit size.
On the filter access panel at the left side of the unit, "FILTER ACCESS PANEL" label is attached.
■Below 6.25RT
This unit is shipped without a filter and is the responsibility of the installer to secure a filter in the return air ductwork.
Important: Do not operate unit without filters in place.
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