LG LP-F8081ZL Service Manual ▷ View online
–28–
5-10 Installation Check List
1. Is the unit securely mounted and levelled?
Space for Evaporator Air Flow
Space for Condenser Air Flow
Space for Maintenance Work
Noise and Vibration
Appearance
2. Is electrical wiring system adequate?
Wire Size
Tightened Connection
Switch Size
Operation Control Devices
Fuse Size
Safety Devices
Voltage
Hz
3. Does the refrigerant piping work adequately?
Pipe Size
Leakage
Insulation
Refrigerant Charge
Vibration
Trap
4. Does the duct work adequately?
Pipe Size
Sound-proof
Insulation
Vibration-Proof
Vibration
5. Are the condensate drain lines properly arranged?
Trap
Drain Ditch
6. Are the service valves opened?
–29–
5-11 Running Test and Maintenance Record
JOB NUMBER:
POWER SUPPLY : Main Power_______ V, ________ Hz
POWER SUPPLY : Main Power_______ V, ________ Hz
Accessory Attached :
CUSTOMER'S NAME AND ADDRESS :
(PHONE NO.: )
INSTALLED BY:
DATE:
START UP BY:
DATE:
❐
1. Does the operation switch function properly?
❐
2. Is the rotating direction of the evaporator fan correct?
❐
3. Is the rotating direction of the condenser fan correct?
❐
4. Is the evaporator airflow sufficient?
❐
5. Are there any abnormal sounds?
❐
6. Has the unit been operated at least twenty (20) minutes?
❐
7. Check indoor temperatures :
Inlet : DB __________ °C, WB _______________°C
Outlet : DB __________ °C, WB _______________°C
❐
8. Check outdoor temperatures :
Inlet : DB __________ °C
Outlet : DB __________ °C
❐
9. Check pressures :
Discharge pressure:________kg/cm
2
Suction pressure: ____kg/cm
2
❐
10. Check voltage :
Rated voltage:________ V
Operating voltage:R-S __________ V, S-T _____ V, T-R ______V.
Starting voltage: _____ V (
≥
0.85 x Rated Voltage)
Phase unbalance : 1-V/V mean = ______ (-0.03
≤
Imbalance
≤
+0.03)
❐
11. Check running current:
packaged air conditioner: ____ A
❐
12. Do the control devices function properly?
❐
13. Do the protective devices function correctly?
❐
14. Is the refrigerant charge adequate?
❐
15. Is the drain line draining properly?
❐
16. Is the air filter clean?
❐
17. Are the evaporator coil and condenser coil clean?
❐
18. Are all cabinet panels fixed?
❐
19. Are all cabinet panels free from rattles?
Indoor Unit
Outdoor Unit
Model
( V, Hz)
( V, Hz)
Production No.
–17–
2) Indoor Unit installation
➀
The mounting floor should be strong and solid
enough to prevent it from vibration.
enough to prevent it from vibration.
➁
Drill the piping hole with 70mm diameter hole-
core drill at either the right or the left of indoor
unit. The hole should be sightly slant to the out-
door side.
core drill at either the right or the left of indoor
unit. The hole should be sightly slant to the out-
door side.
3) Outdoor unit Installation
➀
Install the outdoor unit on the concrete or any
solid base securely and horizontally.
solid base securely and horizontally.
➁
If there is any vibration transmitted to the build-
ing, mount the rubber underneath the outdoor
unit.
ing, mount the rubber underneath the outdoor
unit.
4) Refrigerant amount
Before shipment, this air conditioner is filled with
the rated amount of refrigerant including additional
amount required for air-purging, subject to 5m pip-
ing length. (The rated amount of refrigerant is indi-
cated on the name plate.) But when the piping
length exceeds 5 meters, additional charge is
required according to the following table.
the rated amount of refrigerant including additional
amount required for air-purging, subject to 5m pip-
ing length. (The rated amount of refrigerant is indi-
cated on the name plate.) But when the piping
length exceeds 5 meters, additional charge is
required according to the following table.
(Unit: g)
Example) 72K~80K
In case of 10m long pipe(one-way), the amount of
refrigerant to be replenished is:
In case of 10m long pipe(one-way), the amount of
refrigerant to be replenished is:
(10 - 5)
×
80 = 400g
200mm
70mm
70mm
9
0
m
m
Wall
Core Drill
MODEL
80K
REFRIGERANT CHARGE
80 per 1m
–18–
5-2. Installation Method
1) Procedure
No.
Installation works
Descriptions
1
Preparation of tools and installation parts
Preparation of installation
2
Flaring the pipes
To insert the flare nuts, mounted on the
connection parts of both indoor and
outdoor unit, onto the copper pipes.
connection parts of both indoor and
outdoor unit, onto the copper pipes.
3
Pipe bending
To reduce the flow resistance of refrigerant.
4
Connection of installation parts
Connection of long piping
(elbows, socket etc)
5
Tighten the flare nut (outdoor)
Connecting the pipings of the outdoor unit.
6
Blowing the pipings
To remove dust and scale in working.
7
Tighten the flare nut (indoor)
Connecting the pipings of the indoor unit.
8
Check a gas-leakage of the connecting
part of the pipings.
part of the pipings.
9
Air purging of the piping and indoor unit
The air which contains moisture and which
remains in the refrigeration cycle may cause a malfunction on the
compressor
remains in the refrigeration cycle may cause a malfunction on the
compressor
10
Open the 3-way (liquid side) and
3-way (gas side) valves.
3-way (gas side) valves.
11
Form the pipings
To prevent heat loss and sweat
12
Checking the drainage (indoor unit)
To ensure if water flow drain hose of indoor unit.
13
Connecting the cable between outdoor
Preparation of the operating
and indoor unit
14
Connecting the main cable to outdoor unit
15
Supply the power to the crankcase heater
To prevent the liquid back to the compressor.
(Before the operating the unit)
(Heat pump only)
16
Cooling operation
(Use the remote control or display of the
indoor unit)
(Use the remote control or display of the
indoor unit)
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