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7.8 Electric immersion heater and thermostat with manual reset
The electric immersion heater is immersed in the boiler through the 1"1/4
sleeve on the bottom and it is equipped with a safety thermostat with
manual reset.
To manually reset it, press the white pin with a tip.
Manual reset
To replace the thermostat with manual reset:
1. Make sure that the unit is off and disconnected from the mains.
2. Remove the plastic protection
3. Disconnect the electrical connections from the thermostat of the
electric immersion heater.
4. Remove the thermostat from the electric immersion heater
replace it with a new one.
Repeat the operations in the reverse order to restore the electrical
connections and the plastic protection, making sure to observe the
order of the connections.
To replace the electric immersion heater and the magnesium anode,
proceed as follows:
A. Perform the operations described above (at points 1, 2 and 3);
B. Make sure that the tank has been emptied from water by closing the
water supply and opening either the hot water tap and the drainage
connection described in previous chapter.
C. Unscrew and remove the electric immersion heater with magnesium
anode;
Warning: remove the electric immersion heater carefully, making
sure not to scratch the internal coating of the sleeve. In case of
contact with the tank's internal walls, never force the removal.
D. Replace the electric immersion heater with magnesium anode and
screw it again making sure to restore the gasket sealing and check that
it is intact.
Repeat the operations in the reverse order to reposition the electric
immersion heater , the thermostat, the electrical connections and the
plastic protection, making sure to observe the order of the connections.
Cod. 1910000001165 - nv01-t
7.9 Aeraulic connections
To carry out the ducting, remove the upper grid using pliers and/or a cutter.
and
CAUTION:
The product may require the installation of aeraulic ducts.
Perform the installation of aeraulic ducts in such a way
that they:
• ensure an upper cover's vertical free movement of at least 20
mm to allow removal (e.g. with fl exible ducting or leaving a suffi cient
"clearance") and provide space for maintaining the unit, accessing and
disassembling any accessories
• do not weigh down upon the unit;
• prevent air recirculation between the machine's intake and deliver
systems;
• are properly protected to prevent accidental introduction of materials
inside the machine.
The ducting must be carried out always starting from the connection of
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