6
Instructions for use and maintenance
EN
return-valve must be mounted on the cold water
supply pipe, in observance of the direction arrow
stamped on its body, indicating the incoming water’s
direction. Additional stopcocks must not be mounted
between the safety return-valve and the water
heater.
Exception
:
If the local regulations (norms)
require the usage of another protection valve or
mechanism (in accordance with EN 1487 or EN
1489), then it must be bought additionally. For
mechanisms operating in accordance with EN 1487
the announced operational pressure must be no
more than 0.7 MPa. For other protection valves, the
pressure at which they are calibrated must be 0.1
MPa lower than the one marked on the appliance’s
sign. In these cases the safety valve which the
appliance is supplied with should not be used.
Attention
! The presence of other /old/ safety return-
valves may lead to a breakdown of your appliance
and they must be removed.
Attention
!
Other type of stopping armature is not
allowed between the protection return valve (the
protective device) and the appliance.
Attention
! T
he attaching of the safety return-valve
to threads longer than 10 mm is not allowed,
otherwise this may damage the valve and poses
danger for your appliance
.
Attention
!
With appliances for vertical assembly,
the safety valve has to be connected to the ingoing
pipe with the safety plastic panel of the appliance
being taken off. After it has been assembled it should be in
position as shown on Fig. 3 and fig.4
.
Attention
!
The safety valve and the pipe between the
valve and the water heater must be protected from
freezing. During hose draining - its free end must be
always open to the atmosphere (not to be immersed). Make
sure that the hose is also protected from freezing
.
Opening the cold-water stopcock of the water supply
piping network and opening the hot-water stopcock
of the water-mixing faucet carries out the filling of the
water heater with water. After the filling is complete,
a constant stream of water must begin to flow from
the water-mixing faucet. Now you can close the hot
water stopcock.
In the event you must empty the water heater, first
you must cut off its power supply. The inflow of
water from the water mains must first be terminated
and the hot water tap of the mixing-faucet must be
opened. The water tap 7 (fig 4) must be opened to
drain the water from water tank. If there is no such
tap build in the pipe line, than the water can be drain
directly from inlet pipe of water tank .In the event of
removing the flange, the discharge of several liters
of water, which remain in the water tank, is normal.
Attention
!
Measures must be undertaken to
prevent damage from discharging water during
draining. In the event that the water mains piping,
pressure exceeds the pressure stated on the appliance
(outlined here above in s. II and on the appliance’s rating
plate), it shall be necessary to mount a pressure-reducing
valve; otherwise the water heater shall not function
correctly. The Manufacturer does not assume any liability
for problems arising out of the appliance’s improper use.
3.
Water heater connection to the electrical
network (Fig.2)
Explanations to Fig. 2:
TS - thermal switch; TR - thermal regulator; R -
heater; IL - light indicator; F - flange.
Attention
! Make sure the appliance is full of water
prior to switching on the electrical mains power.
3.1.
Models with power cord with a plug
are
connected by inserting the plug into a contact. They
are switched off the power supply by drawing the
plug out of the contact.
Attention
! The wall-plug must be properly
connected to a separate electrical circle that is
provided with a protector. It must be earthed.
3.2.
Models without power cord
The appliance has to be connected to a separate
electricity circuit of the stationary electrical wiring.
The circuit has to be supplied with a safety fuse
16A (20A for power > 3700W). Copper single core
(rigid – non stranded) conductor shall be used for
the connection – cable 3 x 2.5 mm² (cable 3 x 2.5
mm² for power > 3700W).
The electrical circuit supplying the appliance must
have an in-built device ensuring the splitting of all
terminal poles under conditions of super-voltage of
category III.
To install the power supply wire to the appliance,
remove the plastic cover (Fig.3).
Connect the power wires in compliance with the
marks on the terminals, as follows:
•
the phase - to mark A, A1, L or L1;
•
the neutral - to N (B or B1 or N1)
The safety wire must be obligatory connected to the
screw joint marked with .
After the installation, put the plastic cover back in
its place!
Note:
For models with externally adjustable
thermostat (shown on Fig. 3), dismount the
handle before mounting the cover by pressing it
from the internal side till it gets detached from the
plastic cover. Mount the plastic cover again,
afterwards set the handle on its place by pressing it
to click in.
Summary of Contents for ATE050
Page 2: ......
