Quick Setup Guide

2
Safety Instructions - Installation
Multi F / Multi F MAX Air-Source System Install Tips
The following pages present an overview of Multi F / Multi F MAX air-source Variable Refrigerant Flow (VRF) installation concepts, and is
intended to supplement the technical and installation information provided with each product. The review of basic operation and
maintenance skills must reinforce industry established practices and provide helpful tips to make equipment operation successful.
Safety Instructions - Wiring
DANGER
• High voltage electricity is required to operate this system.
Adhere to applicable building codes: National Electrical Code
(NEC) for U.S. and Mexico, Canada Electrical Code (CE) for
Canada and these instructions when wiring.
- Improper connections and inadequate grounding can cause
accidental injury or death.
• Always ground the unit following local, state, and national Codes.
- There is risk of fire, electric shock, and physical injury or death.
• Properly size all circuit breakers or fuses.
- There is risk of fire, electric shock, explosion, physical injury or
death.
WARNING
• The information contained in this manual is intended for use by
an industry-qualified, experienced, certified electrician familiar
with NEC for U.S. and Mexico, or CE for Canada who is equipped
with the proper tools and test instruments.
- Failure to carefully read and follow all instructions in this manual
can result in equipment malfunction, property damage, personal
injury or death.
• Refer to local, state, and federal codes, and use power wires of
sufficient current capacity and rating.
- Wires that are too small may generate heat and cause a fire.
• All electric work must be performed by a licensed electrician and
conform to local building codes or, in the absence of local codes,
with NEC for U.S. and Mexico, or CE for Canada, and the
instructions given in this manual.
- If the power source capacity is inadequate or the electric work
is not performed properly, it may result in fire, electric shock,
physical injury or death.
• Secure all field wiring connections with appropriate wire strain
relief.
- Improperly securing wires will create undue stress on
equipment power lugs. Inadequate connections may generate
heat, cause a fire and physical injury or death.
• Properly tighten all power lugs.
- Loose wiring may overheat at connection points, causing a fire,
physical injury or death.
• Do not change the settings of the protection devices.
- If the pressure switch, thermal switch, or other protection
devices are bypassed or forced to work improperly, or parts
other than those specified by LG are used, there is risk of fire,
electric shock, explosion, and physical injury or death.
NOTE
Do not supply power to the unit until all electrical wiring, controls
wiring, piping, installation, and refrigerant system evacuation are
completed.
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DANGER
•
Do not store or use flammable gas or combustibles near the unit.
- There is risk of fire, explosion, and physical injury or death.
CAUTION
• Be very careful when transporting the product. There is a risk of
the product falling and causing physical injury.
- Use appropriate moving equipment to transport each frame;
ensure the equipment is capable of supporting the weight of
the equipment.
• The Limited Warranty is void and of no effect, and LG will have
no liability hereunder to any Customer or third party, to the
extent any of the following occur: acts, omissions, and conduct
of any and all third parties including, but not limited to, the
installing contractor and any repairs, service or maintenance by
unauthorized or unqualified persons.
• Do not insert a drain hose in drain or soil pipe.
- Bad smells can occur and it results in a corrosion of a heat
exchanger or pipe.
• Do not install the unit in potentially explosive atmospheres.
WARNING
• An authorized, trained technician licensed locally and at the state
level must install the unit.
- Improper installation by the user may result in fire, explosion,
electric shock, physical injury or death.
• Wear protective gloves when handling equipment. Sharp edges
may cause personal injury.
• Always check for system refrigerant leaks after the unit has been
installed or serviced.
- Exposure to high concentration levels of refrigerant gas may
lead to illness or death.
• Dispose the packing materials safely.
- Packing materials, such as nails and other metal or wooden
parts, may cause puncture wounds or other injuries. Tear apart
and throw away plastic packaging bags so that children may not
play with them and risk suffocation and death.
• Install the unit considering the potential for strong winds or
earthquakes.
- Improper installation may cause the unit to fall over, resulting in
physical injury or death.
• Install the unit in a safe location where nobody can step on or fall
onto it. Do not install the unit on a defective stand.
- It may result in an accident that causes physical injury or death.
• Properly insulate all cold surfaces to prevent “sweating.”
- Cold surfaces such as uninsulated piping can generate
condensate that could drip, causing a slippery surface that
creates a risk of slipping, falling, and personal injury.
NOTE
• Do not install the product where it is exposed directly to ocean
winds.
- Sea salt in the air may cause the product to corrode. Corrosion,
particularly on the condenser and evaporator fins, could cause
product malfunction or inefficient operation.
• Properly insulate all cold surfaces to prevent “sweating”.
- Cold surfaces such as uninsulated piping can generate
condensate that may drip and cause a slippery surface condition
and / or water damage to interior surfaces.
• Always check for system refrigerant leaks after the unit has been
installed.
- Low refrigerant levels may cause product failure.
• Do not make refrigerant substitutions. Use R-410A only.
- If a different refrigerant is used, or air mixes with original
refrigerant, the unit will malfunction and be damaged.
• Keep the unit upright during installation to avoid vibration or
water leakage.
• When connecting refrigerant tubing, remember to allow for pipe
expansion.
- Improper piping may cause refrigerant leaks and system
malfunction.
• Do not install the outdoor unit in a noise-sensitive area.
Periodically check that the outdoor frame is not damaged.
- There is a risk of equipment damage.
• Install the unit in a safe location where nobody can step on or fall
onto it. Do not install the unit on a defective stand.
- There is a risk of unit and property damage.
• Install the drain hose to ensure adequate drainage.
- There is a risk of water leakage and property damage.
• Do not store or use flammable gas / combustibles near the
unit.
- There is a risk of product failure.
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The installation guide is NOT intended to be a replacement for LG installation manuals, nor is it intended to cover ALL the logistics
of operating and maintenance of VRF systems. For detailed information on the procedures mentioned here, refer to the installation
manual specific to your product. Always comply with applicable local, state, and federal codes.
NOTE
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