Electrical Connection; First Start-Up; Maintenance; Fault Rectification - Users - STIEBEL ELTRON HFA-E 30 Gebrauchs- Und Montageanweisung

2.8 Electrical connection

Draw out the temperature selection
button, release the screws, and take off
G
the under-cap .
Prepare the connection pipe
The output required is to be connected in
accordance with the connection examples.
After establishing the electrical connection,
the box on the rating plate, which
corresponds to the connection power and
voltage, is to be marked with a ball-point
pen (HFA-E 100/150, HFA-Z 30 - 150,
and HFA/EB 80 Z).
HFA-E 30, HFA-E 80
Electrical circuit diagram
a Temperature regulator
b Safety temperature limiter
Single-circuit connection
HFA-E 100, HFA-E 150
Electrical circuit diagram
a Temperature regulator
b Safety temperature limiter
Single-circuit connection
HFA-Z 30 - 150, HFA/EB 80 Z
Electrical circuit diagram
a Temperature regulator
b Safety temperature limiter
c Button for rapid heating
d Remote control button and glow
lamp indicating rapid heating
Dual-circuit connection
– Single-counter measurement
a Electricity utility company contact
– Dual-counter measurement
a Electricity utility company contact
Single-circuit connection
S
Boiler operation
Fit temperature selection button and
G
under-cap .
3. Fault rectification
Fault
No hot water
No flow rate.
Table 2
4. Fault rectification
Fault
No hot water
Table 3
14

2.9 First start-up

(may only be carried out by a qualified
installer)
H
.
Fill the unit, bleed it, and flush it
1
through thoroughly.
1
2
Turn the temperature selection
2
3
1
1
button to the right as far as the
3
4
1 stop.
2
2
4
5
2
Switch on the mains voltage.
3 3
5
3 6
Check the mode of operation of
4
4
6
the unit.
4
7
5
5
7
In unvented operation:
5
8
6
6
Check the safety group for
8
6
K
9
7
7
functional performance.
9
7
10
8
8
10
Note:
8
11
9
9
L
– At temperatures of below -15 °C (e.g.
11
9
12
10
10 transport/storage) the safety temperature
12
10
limiter may trip; press the reset button
13 11
11
13
A
11 ( 7).
M
14 12
12
14
12
13 15
Handing over the unit:
13
13 15
Explain the function of the unit to the users
14 16
14
N
14
and familiarise them with its use. 16
15
17
Important notes:
15
15 17
16
Advise the users about possible hazards
18
16
16
18
(such as scalding).
O
17
19
17
17
Hand over these Operating and Installation
19
18
20
Instructions for safekeeping. All the
18
18
20
information provided in these Instructions
19
21
19 19
21
must be followed carefully. These
20
22
20
20
Instructions provide details about safety,
22
21
23
operation, installation, and the
21
21
23
maintenance of the unit.
22
24
22
22
24
P
23
23
23
24
Q 24
24
R
- Users
Cause
– No voltage.
– Dirt or limescale in the perlators in the
fittings or shower heads.
- Qualified Installer
Cause
– Safety temperature limiter has tripped.
– Rapid heating does not come
– Heating element
on.
defective.

2.10 Maintenance

When carrying out any work, disconnect
all poles from the mains supply.
Check the protective anode for the first
time after two years of operation, and
replace it if necessary; to do this, the
heating element must be removed. After
replacing the protective anode, the
qualified installer will decide at what
intervals further checks are to be carried
out.
Transitional resistance between protective
anode and container connection nozzle
max. 1.0 .
Check the safety group regularly.
Other instructions regarding the unit:
Only remove limescale from the element
after disassembly. Do not treat the
container surface and protective anode
with descaling products.
Safety device:
Regulator-limiter combination immersion
I
depths :
a Limiter sensor
b Regulator sensor
Draining the storage water heater
cylinder: Before draining the cylinder,
disconnect the unit from the mains supply.
– Close the isolating valve in the cold
water feed line.
– Open the hot water fittings fully at all
draw-off points.
– Unscrew the cap from the drainage
A
nozzle ( 10).
Hot water may come out during
draining.
The corrosion protection resistor
the insulating plate must not be damaged
or removed during servicing work. When
replacing the corrosion protection resistor
the assembly is to be re-established in the
correct manner.
a Copper heating element
b Insulating plate
c Pressure plate
d Corrosion protection resistor
Rectification
– Check fuses in the house installation.
– Clean and/or descale the outlet fittings.
Rectification
– Rectify cause of fault. Replace regulator-
limiter combination.
– Check buttons and levers.
– Replace heating element.
J
on