dafi IPX5 Betriebsanleitung - Seite 5

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The heater must be earthed.

The connection to the wiring system must be ensured by an electrician

provided with an appropriate licence. The heater must be connected

to the wiring system performed only in the TN-S or TN-C-S network

system (according to 0), with copper wires and cross-section corre-

sponding to the rated current of the heater. The wiring system must be

equipped with the switch, that allows the voltage at all poles from the

power source to be disconnected

The overload protection of the electrical network during the installa-

tion of the DAFI electrical flow water heater must be selected in ac-

cordance with the rated current of the heater, given in the table with

parameters.

Note!

If the power cord is damaged, it should be replaced by an appropria-

te cord available at the manufacturer or at the network of authorised

service centres.

Each percent of voltage drop below the rated voltage value decreases

the heating efficiency by about 2%, and therefore, it decreases the

water heating effect.

7. Installation and operation

The DAFI water heater may be installed with its own tap, with the connection and

reducing nipples. In the case of installation with the connection and nipples, it is

recommended to install the DAFI shut-off valve at the water inlet to the heater. If the

valve is included in the set, it may be purchased in the retail network.

NOTE! The heater cannot be mounted in rooms, where temperature falls below 1°C.

7.1 Installation of the heater with its own tap

a) For the purpose of installation, use only the installation wrench included

as part of the equipment. Before proceeding with the installation, close the

main water valve and clean the threads. Seal the G ½" thread of the tap body

with the locknut screwed on it, using the teflon tape (fig. 2), and then screw

it into the fitting protruding from the wall, in order to have the two stub pipes

for fixing the heating unit directed vertically upwards.

b) while screwing the tap, maintain particular caution so as not to strip the

thread. Do not screw in the tap while holding the knobs with both hands The

correct method of screwing in the tap is shown in fig. 3.

c) The Distance between the face of the nut and the fitting should be 1-4

mm. After establishing the position and distance of the tap, lock the nut by

tightening it in the direction of the fitting protruding from the wall (fig. 4).

d) Screw the spout to the tap, screw the fixing nut onto the right stub pipe of

the tap (M 18x2), check whether both tap valves are turned off, turn on the