Installation Space; Installation Process; Lifting Method - LG Multi V ARU Series Quick Manual

Vrf for indoor installaion
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1,MFL69171214,영어 2018. 2. 23. 오후 4:43 페이지 6
6

INSTALLATION SPACE

It must be installed indoors.
Ambient design temprature of compressor module and
Heat exchange module is 5~35°C (26°C WB)
- There should not be any heat source or steam near the unit.
- There should not be any obstacles to the air circulation.
- A place where air circulation in the room will be good.
- A place where drainage can be easily obtained.
- A place where noise prevention is taken into consideration.
- Do not install the unit near the door way.
- Ensure the spaces indicated by arrows from the wall, ceiling, or other
obstacles.
- The indoor unit must have the maintenance space.
- For more information, refer to installation manual.

LIFTING METHOD

- When carrying the suspended, unit pass the ropes under the unit and
use the two suspension points each at the front and rear.
- Always lift the unit with ropes attached at four points so that impact
is not applied to the unit.
- Attach the ropes to the unit at an angle of 40° or less.
CAUTION
!
• Do not have only one person carry product if it is more than 20 kg.
• PP bands are used to pack some products. Do not use them as a
mean for transportation because they are dangerous.
• Do not touch heat exchanger fins with your bare hands.
Otherwise you may get a cut in your hands.
• Tear plastic packaging bag and scrap it so that children cannot
play with it. Otherwise plastic packaging bag may suffocate
children to death.
• When carrying in Outdoor Unit, be sure to support it at four
points. Carrying in and lifting with 3-point support may make
Outdoor Unit unstable, resulting in a fall.
• Use 2 belts of at least 8 m long.
• Place extra cloth or boards in the locations where the casing
comes in contact with the sling to prevent damage.
• Hoist the unit making sure it is being lifted at its center of gravity.

INSTALLATION PROCESS

Indicate clearly who will be responsible for switch setting.
Determination of division work
Make connection clearly between outdoor, indoor,
Preparation of contract drawings
remote controller and option.
Take account of gradient
Sleeve and insert work
of drain piping
Check model name to
Installation of indoor unit
make sure the fitting
is made correctly
Special attention to dryness,
Refrigerant piping work
cleanness and tightness
Drain pipe work
Adjust to downward gradient
Make sure airflow is sufficient
Duct work
Make sure no gaps are left where
Heat insulation work
the insulating materials are joined
Multiple core cable must not be used.
Electrical work
(suitable cable should be selected)
(connection circuits and drive circuits)
(Including Connecting communicate wiring to
between Cycle module and Condenser module)
In the final check for 24hours at 3.8 MPa(38.7 kgf/cm
Airtight test
must be no drop in pressure.
The vacuum pump used must have a capacity of reaching at least
Vacuum drying
5 torr, more than 1 hour
Recharge correctly as calculated in this manual. and record the
Additional charge of refrigerant
amount of added refrigerant
Make sure there are no gaps left between the facing materials
Fit facing panels
used on the ceiling
Refer to automatic addressing flowchart
Automatic addressing of indoor unit
Preheat the crank case with the electrical heater for more than 6 hours.
Run each indoor unit in turn to make sure the pipe work
Test run adjustment
has been fitted correctly
Explain the use of the system as clearly as possible to your customer and
Transfer to customer with explanation
make sure all relevant documentation is in order
CAUTION
!
• The above list indicates the order in which the individual work
operations are normally carried out but this order may be varied
where local conditions warrants such change.
• The thickness of the piping should comply with the relevant
local and national regulations for the designed pressure 3.8MPa.
• Since R410A is a mixed refrigerant, the required additional
refrigerant must be charged in its liquid state.(If the refrigerant
is charged in its gaseous state, its composition changes and the
system will not work properly.)
Foundation work for Compressor Module
& Heat exchanger Module installation
The foundation must be level even
Installation of Compressor module &
Heat exchanger module
Avoid short circuits and ensure
sufficient space is allowed for service
2
) there

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