universalblue IGUAZU Instruction Manual page 28

1. Install the electrolytic sleeve between the cold water inlet (marked
with a blue ring) at the bottom of the water heater and the safety
valve, and this to the pipe.
(Maximum Pressure of Safety valve is 0.85 MPa 8.5 bars)
2. The safety valve is to be operated regularly to remove lime
deposits and to verify that it is not blocked.
3. Draining the water heater is done by lifting the lever according to
this fig.3.3, and if the safety valve is without lever, you have to
disassemble the safety valve from the water heater and remove
deposits.
Fig 3.2
Fig 3.3