LG AHU EEV KIT Installation Manual page 6

IMPORTANT SAFETY INSTRUCTIONS
6
CAUTION
!
Installation
• Always check for gas (refrigerant) leakage after installation or
repair of product.
- Low refrigerant levels may cause failure of product.
• Install the drain hose to ensure that water is drained away
properly.
- A bad connection may cause water leakage.
• Keep level even when installing the product.
- To avoid vibration or water leakage.
• Do not install the product where the noise or hot air from the
outdoor unit could damage the neighborhoods.
- It may cause a problem for your neighbors.
• Do not install the product where it will be exposed to sea
wind (salt spray) directly.
- It may cause corrosion on the product. Corrosion, particularly
on the condenser and evaporator fins, could cause product
malfunction or inefficient operation.
• Thickness of copper pipes used are as shown "Flaring work"
Table.
- Never use copper pipes thinner than that in the table even
when it is available on the market
• Do not use copper pipes having a collapsed.
- Otherwise, the expansion valve or capillary tube may
become blocked with contaminants.
• For R410A model, use piping, flare nut and tools which is
specified for R410A refrigerant.
- Using of (R22) piping, flare nut and tools may cause
abnormally high pressure in the refrigerant cycle (piping), and
possibly result in explosion and injury.
• It is desirable that the amount of residual oil less than 40
mg/10m.