2.3. Indicator lights
2.3.a. PROfessional TECH steatite range
The boiler protection anode is controlled by a
P.C.B. powered at the network current or using a
battery designed for systems operating in day/night
mode, in order to keep the boiler protected during
the day. The PROfessional TECH system cannot
be left without a power supply for over 48 hours.
Picture 16 – PROfessional TECH: lights
Green indicator light ON – Red indicator light
OFF:
C
Red indicator light ON:
D
Contact your
installer.
Green indicator light OFF:
D The boiler
is no longer protected against corrosion.
Contact the installer.
If connected to the mains with a dual timer schedule
or exclusive night-time schedule (only for models
with battery), the green indicator light switches on
but is very weak for the first 48 hours in accordance
with the charge status of the battery. Check the
indication light after 48 hours of operation.
In order to guarantee full boiler
protection (green light illuminated),
any faulty batteries must be replaced.
If the batteries are not replaced, the guarantee
will become void. It makes good sense to replace
them once they have been used for one or two
years.
2.4. Drainage from the safety assembly
Due to the expansion of water during the heating
stage, dripping from the safety assembly (up to 3%
of the nominal capacity) is normal. Please read the
instructions for the safety assembly. An expansion
vessel may be installed in order to prevent this
leakage.
Ma I n t e n a n c e a n d re p a I r s
1. Maintenance
Empty the appliance annually (twice a year if the
water has been treated with a softening agent)
in order to:
1. check the condition of the magnesium anode;
2. remove all deposits inside the boiler.
We strongly recommend that the performance
of the water softener is checked regularly. The
residual hardness cannot be lower than 15ºf. A
water hardness level which is too low will cause
the guarantee to become void.
1.1. Emptying
➢ Cut off the electricity supply before performing
any work on the appliance.
➢ Shut off the cold water supply at the inlet.
➢ Open the hot water tap to draw water.
➢ Open the emptying valve on the safety assembly
and the water will flow out of the drainage hole.
1.2. Build-up removal – Checking the anode
➢ Empty the appliance (see above).
➢ Remove the protection element and unscrew
the base (some residual water may leak out).
➢ Clean the boiler: without using metal objects
or chemical agents, remove any build-up on
electrical elements or on the bush (steatite), on
the corresponding casing and on the base of the
boiler.
➢ If a magnesium anode is used, check its
condition: the magnesium anode is consumed
progressively in accordance with the water quality,
in order to prevent corrosion of the boiler. If the
diameter is smaller than 15 mm (for the armoured
range) / 10 mm (for the steatite range), or if the total
volume is lower than 50% of the initial volume, the
anode should be replaced.
➢ Use a new seal every time the base is
replaced after being removed.
➢ When screwing in the bolts again, use a “cross-
tightening” technique. The tightening torque should
be between 7 and 10 Nm.
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