Domestic Hot Water Mode - LG HM121HF UB60 Owner's Manual

FUNCTION SETTING
46

Domestic hot water mode

You can choose Domestic hot water mode (Comfort / Eco) by pressing button [L , M (left/right)].
Eco mode is an operation mode that can reduce electricity bill and improve efficiency.
Eco mode has a relatively slow rise in hot water temperature compared to Comfort.
Default (Comfort mode) Eco mode