4-30
5
Release the catch clip.
6
Lift the water heating system and engage the
hanger with the hook.
7
Remove the hot water tank.
• Move the remaining antifreeze liquid into a polyethylene tank.
• Take care not to spill the antifreeze fluid. If spilled, be sure to
wipe it off immediately.
8
Set the empty hot water tank into the water heating system and return the water
heating system and the catch clip to the state of starting the operation.
9
Press the key.
• Discharging of antifreeze liquid remaining in the system starts.
• When discharging is completed, a message shown in the right is
displayed.
10
Take out the hot water tank again.
• Take out with referring to the step 5~6.
11
Move antifreeze liquid in the tank into the polyethylene tank used in step 3, and wash
the hot water tank.
• If neutral detergent is used for washing the tank, sufficiently rinse the tank with water.