Maintenance; Draining And Flushing The Water Heater - LG R5TT20F-SA1 Engineering Product Data Book

Heat Pump Water Heater

. Maintenance

17
!
WARNING
Turn off the power by opening the
circuit breaker or removing the fuses
before you perform any maintenance;
otherwise it may cause electrical shock
resulting in severe injury or death.
Before you perform any maintenance, turn off
the power by opening the circuit breaker as
below
Clean and check the product regularly to
maintain optimal performance and to prevent
possible break down. If you have difficultly to
perform these routine maintenance tasks
yourself, contact a qualified person.
41
- 50 Hz ( R134a)
Draining and Flushing the
Water Heater
Minerals contained in tap water can form lime
deposits. Therefore, it is not uncommon that
lime deposits accumulate in the water heater's
tank. The amount of lime deposits depends on
water hardness, the temperature settings, and
other variables.
Turn off the power by opening the circuit
1
breaker or removing the fuses.
Connect a garden hose to the drain valve
2
and place the and of the hose in a suitable
drain.
Turn off the cold water supply valve.
3
Open the drain valve. (Open a hot water
4
faucet or lift the handle on the T&P relief
valve to help the water drain faster.)
Once the tank is empty, flush the tank by
5
opening the cold water supply valve.
Allow the water run until no more sediment
6
drains from the tank and water runs clear.
Close the drain valve and open the hot
7
water faucet. Fill the tank by opening the
cold water valve.