Electrical Connection (Cdx 7 / Cdx 11), 3; Electrical Connection With Pre-Installed Power Cable; Electrical Installation To A Permanent Connection; Structural Prerequisites - clage CDX-U Gebrauchs- Und Montageanleitung

5. Electrical connection

Structural prerequisites

• The appliance must be installed via a permanent connection. Heater must
be earthed!
CDX 6 / CDX 9: Maximum cable cross section: 10 mm
CDX 7 / CDX 11: Maximum cable cross section: 6 mm
• The electric wiring should not be injured. After mounting, the wiring must
not be direct accessible.
• An all-pole disconnecting device (e.g. via fuses) with a contact opening
width of at least 3 mm per pole should be provided at the installation end.
• To protect the appliance, a fuse element must be fitted with a tripping
current commensurate with the nominal current of the appliance.
Electrical connection (CDX 6 / CDX 9), 1~
Check that the power supply is switched off prior to electrical
connection!
1. Dismantle off the power cable so that you can insert the cable with the
cladding through the water splash protection sleeve up to the cord grip
into the appliance (fig. E2a).
2. Lead the cable through the water splash protection sleeve into the appli-
ance so that one can securely fix the cladding of the cable with the cord
grip. If necessary, use one of the three predetermined breaking points for
the cable entry. The protective sleeve prevents water from entering the
appliance alongside the connection line. The protection sleeve has to be
used!
3. Mount the cord grip. The cord grip must be used!
4. Strip the cables and plug them in the connecting terminals according to
the wiring diagram. The appliance must be earthed (fig. E1a).
5. After successful electrical connection, fit the hood of the unit. Make sure
not to jam any cables between the appliance hood and the base part of
the appliance (fig. E3).

6. Initial operation

Before making the electrical connec tion, fill the mains and the appliance
with water by carefully opening and closing the hot water tap in order to vent
completely.
To ensure a maximum flow, remove any existing aerator from the faucet.
Flush the warm and cold water pipes each at least for one minute.
After every draining (e.g. after work on the plumbing sys tem or following
repairs to the appli ance), the heater must be re-vented in this way before
starting it up again.
If the water heater cannot be put into operation, the temperature cut-out or
the pressure cut-out may have tripped during transport. If necessary, reset
the cut-out (fig. F1).
1. Switch on the power supply to the appliance.
2. Open the hot water tap. Check the function of the appliance. The heating
element will be activated after approx. 10 – 30 seconds of water flow.
3. Explain the user how the instantaneous water heater works and hand over
the operating instructions.
4. Fill in the guarantee registration card and send it to the after-sales service
or use the online registration.

Electrical connection (CDX 7 / CDX 11), 3~

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2
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Electrical connection with pre-installed power cable

The appliance is to be connected with the pre-installed power cable to a ter-
minal box. If necessary, use one of the three predetermined breaking points
for the cable entry.
Alternative:

Electrical installation to a permanent connection

If, in case of particular local circumstances, connecting to a permanent con-
nection is the only possibility, continue as follows.
1. Disassemble the pre-installed power cable.
2. Dismantle off the power cable so that you can insert the cable with the
cladding through the water splash protection sleeve up to the cord grip
into the appliance (fig. E2b).
3. Lead the cable through the water splash protection sleeve into the appli-
ance so that one can securely fix the cladding of the cable with the cord
grip. If necessary, use one of the three predetermined breaking points for
the cable entry. The protective sleeve prevents water from entering the
appliance alongside the connection line. The protection sleeve has to be
used!
4. Mount the cord grip. The cord grip must be used!
5. Strip the cables and plug them in the connecting terminals according to
the wiring diagram. The appliance must be earthed (fig. E1b).
6. After successful electrical connection, fit the hood of the unit. Make sure
not to jam any cables between the appliance hood and the base part of
the appliance (fig. E3).

Modification of factory preset outlet temperature

The factory set hot water outlet temperature is 50 °C.
This factory setting can be modified within the range of approx. 30 °C to
60 °C by turning the readout potentio meter (fig. F2) with an insulated slotted
screwdriver (width approx. 2 mm).
The hot water outlet temperature will be decreased by clockwise rotation and
increased by counterclockwise rotation.
Note: The hot water temperature may not exceed 55 °C if the instant water
heater is connected to a shower.
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Check that the power supply is switched off prior to electrical
connection!
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