Closed Operation; Open Operation; Electrical Connection - clage SX 50 Gebrauchs- Und Montageanleitung

4. Installation
appliance, with a consequent loss in efficiency and damage to the electric heating element. The appliance must be
decalcified regularly. In order to reduce limescale, you can soften the water in the cold water inlet by an appropriate
drinking water suitable device.

Closed operation

Mount close to the tap from which the most hot water will be extracted. A design proofed safety valve combina-
tion is to be installed. In addition, if water pressure exceeds 0.48 MPa (4.8 bar), a pressure reducing valve is to be
installed and adjusted accordingly. No shut-off valves may be installed between the safety modules and the reservoir.
Discharge from the safety valve must always be open. The safety valve combination for closed operation must be
accredited.
Note: In compliance with the Energy Conservation Act, the temperature of the water heater should be limited
to 60 °C for hot water pipes which exceeds a length of 5 meters.

Open operation

A suitable mixer tap should be installed for the open discharge operation. The tap outlet should always be kept free
from obstructions. Only use CLAGE flow regulator for open storage water heater. A backflow prevention device should
be connected to the cold water inlet.

Electrical connection

Structural prerequisites
• The appliance must be installed via a permanent connection. Heater must be earthed!
• 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.
1. Disconnect the power supply e.g. via fuses and ensure that they cannot unintendedly be switched on.
2. Remove lower cap by taking the four screws out (fig. 7, 8).
3. Lead cable through the cable gland and cord grip and connect, then tighten the cable gland and cord grip (fig. 9).
4. Connect the cable depending on the intended mode of operation as shown in fig. 12.1 or 12.2.
Check that the system is suitable for the maximum power absorbed by the water heater (please refer to the data
plate) and that the cross-section of the electrical connection cables is suitable, and no less than 2.5 mm
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