Electrical Connections; Putting The Water Heater Into Operation; Normal Maintenance; Technical Data - Stiebel Eltron Tempra 12 Instructions De Montage

Electrical connection
WARNING: BEFORE BEGINNING
ANY WORK ON THE ELECTRIC
INSTALLATION, BE SURE THAT MAIN
BREAKER PANEL SWITCHES ARE "OFF"
TO AVOID ANY DANGER OF ELECTRIC
SHOCK. ALL MOUNTING AND PLUM-
BING MUST BE COMPLETED BEFORE
PROCEEDING WITH ELECTRICAL
HOOK-UP. WHERE REQUIRED BY LO-
CAL, STATE OR NATIONAL ELECTRI-
CAL CODES THE CIRCUITS SHOULD
BE EQUIPPED WITH A "GROUND FAULT
INTERRUPTER".
1. All electrical work must comply with natio-
nal and applicable state and local electrical
codes.
2. The TEMPRA should be connected to pro-
perly grounded dedicated branch circuits
of proper voltage rating. Ground must be
brought to the "Ground" at the circuit brea-
ker panel.
A TEMPRA 12 can be conected to a
G
single circuit. Use a supply cable protected
by a double pole breaker (see
2
The TEMPRA 15 to TEMPRA 36 must have
multiple power sources.
A TEMPRA 15, 20 or a TEMPRA 24
H
require two independant circuits. Use two
supply cables protected by two seperate
double pole breakers (see ).
2
A TEMPRA 22, 29 or a TEMPRA 36
I
require three independant circuits. Use
three supply cables protected by three se-
perate double pole breakers (see
Please refer to the technical data table for
the correct wire and circuit breaker size. In

Technical Data

Model
Phase
Voltage
Wattage kW 9
Max. amp. load
Min. required
circuit breaker size
Required wire size
AWG COPPER 6
Min. water flow
to activate unit GPM / l/min
Nominal water volume GAL / l
Working pressure PSI / bar
Tested to pressure PSI / bar
Weight lbs. / kg
Dimensions height inch / mm
depth
width
Water connections NPT
– Suitable for supply with water up to 107.6 °F / 42 °C
– Tankless water heaters are considered a non-continuous load
– Conductors should be sized to maintain a voltage drop of less than 3 % under load
all cases, make sure that the unit is properly
grounded.
3. Cut the electrical connection cable to
length and strip.
4. The wire must be fed through the knock-
outs located between the hot and cold
water connections
wires must be connected to the slots on
the terminal block marked L and L. The
ground wire must be connected to slot
marked with the ground symbol (see
5. Reinstall the cover with screws.
WARNING: AS WITH ANY ELEC-
TRIC APPLIANCE, FAILURE TO
ELECTRICALLY GROUND UNIT MAY RE-
SULT IN SERIOUS INJURY OR DEATH.
Putting the water heater
into operation
).
WARNING: OPEN HOT WATER
FAUCET FOR A FEW MINUTES
UNTIL WATER FLOW IS CONTINUOUS
AND ALL AIR IS PURGED FROM WATER
PIPES. THE UNIT'S COVER MUST BE
INSTALLED BEFORE THE CIRCUIT BREA-
KERS ARE TURNED ON.
1. Turn on circuit breakers to bring electrical
power to the unit.
).
2
2. Adjust the water temperature to the desi-
red level using the knob on the front cover
of the unit. The TEMPRA displays the tem-
TEMPRA 12 TEMPRA 15 TEMPRA 20 TEMPRA 22 TEMPRA 24 TEMPRA 29 TEMPRA 36
1 1
V 208 240 208 240
12 10.8 14.4
A 44 50 2 x 26 2 x 30 2 x 35 2 x 40 3 x 26 3 x 30 2 x 44 2 x 50 3 x 35 3 x 40 3 x 44 3 x 50
A 60 60 2 x 40 2 x 40 2 x 50 2 x 50 3 x 40 3 x 40 2 x 60 2 x 60 3 x 50 3 x 50 3 x 60 3 x 60
6 2 x 8 2 x 8
0.29 / 1.1 0.58 / 2.2
0.13 / 0.5 0.26 / 1.0
14.3 / 6.5 17.6 / 8.0
5 5
14 / / 372 14 / / 372
8 8
3 / (100) 3. Turn on hot water and wait twenty seconds
7
8
4. Check the water temperature with your
5. Explain to the user how the unit works and
G - I
1 . The "live"

Normal maintenance

).
3
STIEBEL ELTRON TEMPRA tankless water he-
aters are designed for a very long service life.
Actual life expectancy will vary with water
quality and use. The unit itself does not re-
quire any regular maintenance. However, to
ensure consistent water flow, it is recommen-
ded to periodically remove scale and dirt that
may build up at the aerator of the faucet(s) or
in the shower head.
has a built in filter screen
cleaned from time to time. In order to do
this, turn off the cold water supply at the iso-
lating valve
filter screen. Clean screen and put the screen
and cap back into their original position.
TAIN ANY PARTS SERVICEABLE BY THE
LAY PERSON. IN CASE OF MALFUNC-
TION PLEASE CONTACT A LICENSED
PLUMBER OR ELECTRICIAN.
1 1 1
208 240 208 240 208
14.4 19.2 16.2 21.6 18
2 x 8 2 x 8 3 x 8 3 x 8 2 x 6
0.58 / 2.2 0.87 / 3.3
0.26 / 1.0 0.39 / 1.5
max. 150 / 10
300 / 20
17.6 / 8.0 24.7 / 11.2
14 4 / / 367
8
5
4 / / 116
8
5 6
14 / / 372 21 / / 552
8 8
3/4"
– 7 –
perature in degree Celsius. There is a con-
version table on the front cover that helps
to convert from degree Celsius to degree
Fahrenheit.
until temperature has stabilized.
hand and make sure that it does not feel
too hot. Reduce if necessary.
familiarise him or her with its use.
Advise the user about possible hazards (hot
water temperature up to 125 °F / 52 °C).
Hand over these instructions, to be kept
for future reference.
E
Also, the TEMPRA
that should be
3
and remove the cap
1
OTHER THAN THE FILTER SCREEN,
THE TEMPRA DOES NOT CON-
1 1
240 208 240 208
24 21.6 28.8 27
2 x 6 3 x 8 3 x 8 3 x 6
0.58 / 2.2 0.87 / 3.3 0.87 / 3.3
0.26 / 1.0 0.39 / 1.5 0.39 / 1.5
17.6 / 8.0 24.7 / 11.2 24.7 / 11.2
5 6
14 / / 372 21 / / 552 21
8 8
of the
2
240
36
3 x 6
6
/ / 552
8