Shutting Down The Appliance; Initial Startup; Appliance Handover; Restarting The Appliance - Stiebel Eltron UltraHot Plus Instrucciones De Funcionamiento E Instalación

INSTALLATION

Shutting down the appliance

13.1 Initial startup

1.
Open the hot water valve of the faucet until water without
any bubbles comes out (at least 3 min). Once the stream is
free of air bubbles, close the hot water valve.
Insert the plug into the grounded receptacle.
Check to ensure none of the plumbing connections are
leaking.
Note
If the proper sequence (first water, then power) is not
followed, it will trigger the dry-run check.
Dry-run check
At initial startup and after every power interruption, the appliance
PCB performs a dry-run check:
Red LED Lights for 20 seconds Appliance heats
Red LED Off for 40 seconds
During the dry-run check, the symbol "heating" flashes and the
backlight is switched on. The display shows "dr" followed by a
number, a counter, and "test" in sequence. The dry-run check will
take approximately 60 seconds.
Note
During the dry-run check ...
- the appliance must not be disconnected from the
utility power network.
- do not draw any water at the draw-off point.
After the dry-run check has completed successfully, the appli-
ance starts the automatic boiling point detection, which takes
approximately 5 minutes. Once everything is completed then the
green light will be constantly lit. This indicates a properly detected
boiling point and a working unit.
Note
If the dry-run check has been activated, the fault code
"E1" appears on the display. The appliance is locked out
of restarting for 5 minutes.
Proceed as follows:
Fill the appliance with cold water.
After a 5-minute lockout period, the appliance performs an-
other dry-run check.
If the fault is displayed again, reset the appliance (P6 = on).

13.1.1 Appliance handover

Explain the function of the appliance to the user. Familiarize
them with its operation.
Tell the user about potential hazards, especially the risk of
scalding.
12 | UltraHot Plus & UltraHot Premium
™
2.
PCB self-test
™
Hand these instructions to them, along with the instructions
for any accessories.

13.2 Restarting the appliance

See the section "Installation / Commissioning / Initial startup".
14. Shutting down the appliance
Disconnect the appliance from the power supply by unplug-
ging it or switching off the circuit breaker at the load center.
Drain the appliance (see "Installation / Maintenance / Drain-
ing the Appliance").

15. Fault messages

Flashing LEDs are used to signal faults. The corresponding fault
code appears on the display:
Fault code Cause
E001 Dry running
E002 Temperature sensor
fault (break, short-cir-
cuit)
E007 Waiting to cool to boil-
ing point detection
Remedy
See "Initial startup / Dry-run
check".
Replace appliance
Open the hot water valve until
the water coming out is cold.
Close the valve and wait for suc-
cessful boiling point detection.
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