Initial Settings; Putting The Water Heater Into Operation; Normal Maintenance; Technical Data - Stiebel Eltron TEMPRA 12 B Manuel D'utilisation Et Installation

7.

Initial settings

Check whether the set value transducer cable is plugged into the
slot T A1 (TEMPRA B) or T
Soll Soll
F
1 Selection of °F or °C units
- Set jumper on the dial-printed circuit board to °F or °C.
F
2
Activate anti-scalding protection function
-
On the TEMPRA Plus, an anti-scalding protection function can be
activated by two different methods.
1. Limit the outlet temperature to the fixed temperature of 109 °F
(43 °C).
- Insert the coding plug into position Tred (reduced temperature).
2. Select a specific outlet temperature
- Switch the appliance 'live'.
- Open the casing so that coding plug T
- Set the temperature selector to "OFF". The coding plug must be
set to T (standard delivery).
max
- Set coding plug to T ; the setting mode will be activated and
red
the flashing display shows the current temperature limit.
- Within the next 30 seconds, you can select the required
temperature (display continues to flash). The setting mode will
terminate after 30 seconds; the programming unit will display
"OFF" again.
8. 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 BREAKERS ARE
TURNED ON.

10. Technical Data

Model
Mat. no.
Model
Mat. no.
Phase
Voltage V
Wattage kW
Max. amp, load A
Min. required circuit A
breaker size
Required wire size AWG COPPER
Inlet temperature, max. °F (°C)
Water flow to activate unit GPM ( l/min) 0.37 (1.4)
Nominal water volume GAL (l)
Working pressure, max. PSI (bar)
Tested to pressure PSI (bar)
Weight lbs. (kg)
Dimensions
height inch (mm)
depth
width
Water connections NPT
– Tankless water heaters are considered a non-continuous load – Conductors should be sized to maintain a voltage drop of less than 3 % under load
D (TEMPRA Plus) on the main PCB.
/ T
becomes accessible.
max red
1 1
208 240 208
12
9 10.8
44 50 2 x 26
60 60 2 x 40
6 6 2 x 8
131 (55)
0.50 (1.9)
0.13 (0.5) 0.26 (1.0)
145 (10)
290 (20)
13.2 (6.1) 15.4 (7.3)
14 1/2 (369)
4 5/8 (117)
16 5/8 (420)
3/4"
1. Close the cover and fix it using the screw with chopper disc.
2. Turn on circuit breakers to bring electrical power to the unit.
3. Turn the temperature selector clockwise and anti-clockwise, to
calibrate the set value transducer.
4. Adjust the water temperature to the desired level using the knob
on the front cover of the unit.
5. Turn on hot water and wait twenty seconds until temperature
has stabilized.
6. Check the water temperature with your hand and make sure
that it does not feel too hot. Reduce if necessary.
7. Explain to the user how the unit works and familiarise him
or her with its use.
Advise the user about possible hazards (hot water temperature
up to 140 °F / 60 °C). Hand over these instructions, to be kept
for future reference.
9.

Normal maintenance

NOTICE: THE TEMPRAS DO NOT CONTAIN ANY PARTS
!
SERVICEABLE BY THE LAY PERSON. IN CASE OF
MALFUNCTION PLEASE CONTACT A LICENSED PLUMBER
OR ELECTRICIAN.
STIEBEL ELTRON TEMPRA tankless water heaters are designed
for a very long service life. Actual life expectancy will vary with
water quality and use. The unit itself does not require any regular
maintenance. However, to ensure consistent water flow, it is
recommended to periodically remove scale and dirt that may build
up at the aerator of the faucet(s), the filter screen in the unit, or
in the shower head.
1 1
240 208 240 208
14.4 19.2
14.4 18
2 x 30 2 x 35 2 x 40 2 x 44
2 x 40 2 x 50 2 x 50 2 x 60
2 x 8 2 x 8 2 x 8 2 x 6
0.50 (1.9) 0.50 (1.9)
0.26 (1.0) 0.26 (1.0)
15.4 (7.3) 15.4 (7.3)
– 9 –
1 1
240 208 240 208
24 28.8
21.6 27
2 x 50 3 x 35 3 x 40 3 x 44
2 x 60 3 x 50 3 x 50 3 x 60
2 x 6 3 x 8 3 x 8 3 x 6
0.77 (2.9) 0.77 (2.9)
0.39 (1.5) 0.39 (1.5)
17.6 (8.6) 17.6 (8.6)
240
36
3 x 50
3 x 60
3 x 6