LG WAD34UW2R Owner's Manual page 22

Installation
Make sure that there's distance longer than

10 cm from the back and side of the purifier
for ventilation, and that surface is even and
solid.
For the room temperature model, discard 10L

of water through faucet after installation.
Cold water piping
Make sure to connect to cold tap waterworks.
(Connecting to hot water piping may damage the
filter.)
22
Keep the distance
Keep the balance
10 cm or more
10 minutes after
installation
No warm
water
Cold water
pipe