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above the vertical water heater (minimum 300 mm
sheathed / 480 mm Ceramic).
1.7 Before removing the cover, ensure that power is
disconnected to avoid any risk of injury or electrocution.
1.8 The electrical installation must include upstream of the
device a pole cut out (circuit breaker or fuse) in accordance
with local installation rules. (A 30 mA earth-leakage
breaker)
1.9 If the cable is damaged, it must be replaced by a special
cord or assembly available from the manufacturer or the
after sales department.
1.10 It is mandatory to install a safety device 0.9 MPa
(9 bar), and S3 dimension: ½ ,״S4 dimension ¾ )״in a frost
safety area (or other new pressure relief device) on the
input of the water heater, which will meet the local
standards.
1.11 The drain of the pressure relief device must be
operated periodically to remove scale deposits and verify
that it isn't blocked.
1.12 No hydraulic accessory shall be located between the
safety device and the cold water inlet. A pressure reducer
(not included) is necessary on the main supply when the
pressure is greater than 0.5 MPa (5 bar).
1.13 Connect the safety device to a drain pipe, in open air,
in a frost-free area and with a continuous slope down in
order to drain the water in case of drain of the water heater.
1.14 For the connection use pipes with minimum
characteristics
pressure
1
MPa
(10
bar)
and
the
temperature should not exceed 100 °C.
1.15 Draining: Disconnect the power supply and cold water
inlet, open the hot water taps and operate the drain valve of
the safety device.
10
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