A.O. Smith CAHP-120 Series, Руководство пользователя

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8. After finish dissolving or cleaning, wash the section of the heating element with water.
9. Clean the precipitation and the scale on the bottom of the tank from the hole of the heating
elements or the drain valve. Open the cold water inlet valve and the drain valve to help the
cleaning.
10. Clean the residual PTFE tape and sealant on the connection of the heating elements.
11. Wrap the heating elements with PTFE tape at the thread joints, paint sealant at the thread
joints of the tank, and then screw the heating elements into the tank.
12. Reconnect the wires of the heating elements to the original positions.
13. Recover the hot water supply according to “Water Charge” instruction. Check the tank for
leaks around the heating elements and determine the normal operation of the heating
elements. Install the covers of the heating elements and the service panels.
ADVICE: When the hot water is too much, it is recommended adjusting the setting
temperature to a lower value for it can prevent the loss of heat and producing scale. This
will result in energy conservation and extend the life of the water heater.
CAUTION: 1. If the water heater is subjected to power failure and any of the following
situation occurs, please disconnect the power supply and then drain out all of the water
from the tank in time.
(1) Ambient temperature is lower than 0
ć
for 48 hours.
(2) Ambient temperature is lower than -10
ć
for 24 hours.
(3) Ambient temperature is lower than -20 ć for 12 hours.
2. If there is a need to stop the operation of the water heater for a long time in low ambient
conditions ( < 5 ć ), please cut off the power supply and then drain out all of the water from
the tank in time.