Fleck NILO 15 Manual De Instrucciones página 17

Safety group complies with the European standard EN 1487
Some countries may require the use of hydraulic special safety devices; the installer must check the suitability of
the safety device he tends to use.
Do not install any shut-off device (valve, cock, etc.) between the safety unit and the heater itself.
The appliance's drain outlet must be connected to a drain pipe of diameter at least equal to the of the outlet itself,
with a funnel to permit an air gap of at least 20 mm for visual inspection. Use a hose to connect the safety group
to the mains cold water supply; fit a cock if necessary (D fig. 2). In addition, a water discharge tube on the outlet
C Fig. 2 is necessary if the emptying tap is opened.
When installing the safety device, do not tighten it fully down, and do not tamper with its settings.
It is necessary to connect the drain, which must always be left exposed to the atmosphere, with a drainage pipe
that is installed sloping downwards in a place with no ice. If the network pressure is closed to the calibrated valve
pressure, it will be necessary to apply a pressure reducer far away from the appliance. To avoid any possible
damage to the mixer units (taps or shower) it is necessary to drain any impurities from the pipes.
Electrical connection
It is mandatory, before installing the appliance, to perform an accurate control of the electrical system by verifying
compliance with current safety standards, which is adequate for the maximum power absorbed by the water
heater (refer to the data plate) and that the section of the cables for the electrical connection is suitable and com-
plies with local regulations. The manufacturer is not liable for damage caused by lack of grounding or anomalous
power supply. Before starting up the appliance, check that the power rating matches that given on the nameplate.
The use of multiplugs, extensions or adaptors is strictly prohibited.
It is strictly forbidden to use the piping from the plumbing, heating and gas systems for the appliance earthing
connection. If the appliance is supplied with a power supply cable, should the latter need replacing, use a cable
featuring the same characteristics (type H05VV-F 3x1.5 mm2, 8.5 mm in diameter. The power cord (H05VV-F
3x1 mm2 dia. 8.5 mm) must be routed into the hole in the back of the appliance and connected to the thermostat
terminals (M Fig. 3-4).
Use a two-pole switch conforming with national laws in force (contact gap of at least 3 mm, preferably equipped
with fuses) to disconnect the appliance's power supply.
The appliance must be grounded with a cable (yellow/green and longer than the phase cable) connected to the
terminals marked (G Fig. 3-4).
Before starting up the appliance, check that the power rating matches that given on the nameplate. If the appli-
ance is not supplied with a power supply cable, choose one of the following installation modes:
- connection to mains with a rigid pipe (if the appliance has no cable clamp); use a cable with a minimum 3x1.5
mm2 section;
- with a flexible cable (type H05VV-F 3x1.5mm2, 8.5 mm in diameter) if the appliance is supplied with a cable
clamp.
Voltage change (for models NILO 15)
Proceed as follows:
1. unplug the power cord
2. Remove the cap by unscrewing the screws that secure
3. Unscrew the nuts holding the metal plates
4. mount terminals and metal plates as specified in Figure 8
5. tighten the nuts in order to avoid false contacts
6. to change the thermostat, resistance, etc.. proceed by removing the cap unscrewing the screws that secure.
Testing and ignition of the device
Before powering up the appliance, fill the heater with mains water. To do so, open the mains cock and the hot
water tap until all the air has been vented from the boiler. Check for leaks from the flanges, tighten down the fit-
tings (not too much!) if necessary.
Turn on the appliance with the switch.
EN
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