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Model
LB-H1860HL_CL LB-H2460HL_CL LB-G3680HL_CL
Pages
51
Size
1.64 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner
File
lb-h1860hl-cl-lb-h2460hl-cl-lb-g3680hl-cl.zip
Date
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–31–
How to Set E.S.P?
Preheat
ZONE
Operation unit
Program set
Room Temp
MED
LO
AUTO
JET
Heater
Defrost
Filter
Humidify
Out door
Timer
On
Set no. Time
Off
01
03
05
07
09
11
13
15
17
19
21
23
1 2 3 4
OPERATION
FAN SPEED
SUB FUNCTION
SET TEMP
HI
AUTO SWING
Time
Preheat
ZONE
Operation unit
Program set
Room Temp
MED
LO
AUTO
JET
Heater
Defrost
Filter
Humidify
Out door
Timer
On
Set no. Time
Off
01
03
05
07
09
11
13
15
17
19
21
23
1 2 3 4
OPERATION
FAN SPEED
SUB FUNCTION
SET TEMP
HI
AUTO SWING
Time
Time
SUB FUNCTION
SET TEMP
OPERATION
AUTO SWING
Preheat
ZONE
Operation unit
Program set
Room Temp
MED
LO
AUTO
JET
Heater
Defrost
Filter
Humidify
Out door
Timer
On
Set no. Time
Off
01
03
05
07
09
11
13
15
17
19
21
23
1 2 3 4
FAN SPEED
HI
Time
SUB FUNCTION
SET TEMP
OPERATION
AUTO SWING
Preheat
ZONE
Operation unit
Program set
Room Temp
MED
LO
AUTO
JET
Heater
Defrost
Filter
Humidify
Out door
Timer
On
Set no. Time
Off
01
03
05
07
09
11
13
15
17
19
21
23
1
3 4
FAN SPEED
HI
2
Timer
1
2
3
5
4
Timer
Procedure of RPM change:
Ex) External Static pressure is 6mmAq for Model Name "LB-G3680HL"
• To protect the unit, compressor is designed to be off during E.S.P. setting.
Push the "On/Off" button. 
The unit will start.
Push the "Timer" and "Wind" button simultaneously for more then 3 seconds.
Push the "Up" of "Down" button for E.S.P adjustment.
And, adjust the number which you want.(In this example, the number is "220". Refer to the table
1 on the next page.)
Shift the fan speed mode by pressing the fan speed button.
And then, Adjust numbers of next steps by repeating the stage 3.
(In this example, the numbers are "235" and "243" respectly)
Push the "Timer" and "Wind" button simultaneously for more than 3 seconds.
Then, Wind Data is memorized by the EEPROM of the main PCB.
Note: The range of selection is from 1~254. Since, the display is two Digit only.
If the range selection is above 100 then the third digit will appear in the screen as shown.
–32–
Static Pressure(mmAq)
Setting Value
0
2
4
6
8
10
Model Name Step(Hi/Med/Lo)
LB-H1860HL/CL
LB-H2460HL/CL
LB-G3680HL/CL
16.5 CMM
14.5 CMM
13 CMM
18 CMM
16.5 CMM
14 CMM
32 CMM
29 CMM
26.5 CMM
235
245
254
220
235
250
230
240
245
230
238
252
205
230
240
230
238
245
225
235
248
190
220
235
225
237
243
215
230
245
50
200
230
220
235
243
180
215
240
1
100
210
150
230
240
1
220
240
[Table. 1]
Note:  1. Be sure to set the value refering table 1. Unexpected set value will cause mal-function.
2. Table 1 is based at 230V. According to the fluctuation of voltage, air flow rate varies.
3-way Valve
1. Pumping down 
Lo
Closed
Purge the air
Outdoor unit
Indoor unit
Liquid side
Gas side
CLOSE
Open
3-Way
valve
3-Way
valve
CLOSE
–33–
• Procedure 
(1) Confirm that both liquid side and gas side
valves are set to the open position.  
–  Remove the valve stem caps and confirm that
the valve stems are in the raised position. 
– Be sure to use a hexagonal wrench to operate
the valve stems. 
(2) Operate the unit for 10 to 15 minutes. 
(3) Stop operation and wait for 3 minutes, then
connect the charge set to the service port of
the 3-way valve.
–  Connect the charge hose to the service port.
(4) Air purging of the charge hose.
–  Open the low-pressure valve on the charge set
slightly to air purge from the charge hose. 
(5) Set the liquid side valve to the closed
position. 
(6) Operate the air conditioner in cooling mode
and stop it when the gaug e indicates
1kg/cm
2
g.
(7) Immediately set the 3-way valve to the closed
position.
–  Do this quickly so that the gauge ends up
indicating 3 to 5kg/cm
2
g.
(8) Disconnect the charge set, and mount the 2-
way and 3-way valve’s stem nuts and the
service port nut. 
–  Use torque wrench to tighten the service port
nut to a torque of 1.8 kg.m. 
–  Be sure to check for gas leakage. 
–34–
1) Re-air purging 
(Re-installation)
• Procedure 
(1) Confirm that both the liquid side valve and the
gas side valve are set to the closed position. 
(2) Connect the charge set and a gas cylinder to
the service port of the 3-way valve. 
–  Leave the valve on the gas cylinder closed. 
(3) Air purging. 
–  Open the valves on the gas cylinder and the
charge set. Purge the air by loosening the flare
nut on the liquid side valve approximately 45°
for 3 seconds then closing it for 1 minute;
repeat 3 times. 
– After purging the air, use a torque wrench to
tighten the flare nut on liquid side valve.
(4) Check for gas leakage.
–  Check the flare connections for gas leakage.  
(5) Discharge the refrigerant. 
–  Close the valve on the gas cylinder and
discharge the refrigerant until the gauge
indicates 3 to 5 kg/cm
2
g. 
(6) Disconnect the charg e set and the gas
cylinder, and set the 2-way and 3-way valves
to the open position.
–  Be sure to use a hexagonal wrench to operate
the valve stems. 
(7) Mount the valve stem nuts and the service
port nut.
–  Use torque wrench to tighten the service port
nut to a torque of 1.8 kg.m.
– Be sure to check for gas leakage.  
* CAUTION: 
Do not leak the gas in the air during Air
Purging.
Lo
Closed
OPEN
Closed
Gas cylinder
R22
Outdoor unit
Indoor unit
Liquid side
Gas side
CLOSE
2-Way
valve
3-Way
valve
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