Commissioning; Initial Start-Up; Recommissioning; Shutdown - STIEBEL ELTRON DHB 18 STi Bedienung Und Installation

INSTALLATIoN

Commissioning

Fitting the lower back panel
f Fit the lower back panel into the back panel. Click the lower f
back panel into place.
f Align the mounted appliance by loosening the fixing toggle, f
aligning the power supply and back panel, and then re-tight-
ening the fixing toggle. If the back panel of the appliance is
not flush, you can secure the appliance at the bottom with an
additional screw.
11. Commissioning
WARNING Electrocution
Commissioning may only be carried out by a qualified
contractor in accordance with safety regulations.

11.1 Initial start-up

≥ 60 s
f Open and close all connected draw-off valves several times, f
until all air has been purged from the pipework and the
appliance.
f Carry out a tightness check. f
f Activate the safety pressure limiter under flow pressure by f
firmly pressing in the reset button (the appliance is delivered
with the safety pressure limiter disabled).
www.stiebel-eltron.com
f Plug the set value transducer cable plug into the PCB. f
f Fit the appliance cover. Check that the appliance cover is f
seated correctly.
f Secure the appliance cover with the screw. f
f Switch the mains power ON. f
f Calibrate the temperature. Turn the temperature selector f
fully clockwise then fully anti-clockwise.
f Remove the protective foil from the control fascia. f
f Check the function of the appliance. f
Appliance handover
f Explain the appliance function to users and familiarise them f
with its operation.
f Make the user aware of potential dangers, especially the risk f
of scalding.
f Hand over these instructions. f

11.2 Recommissioning

Material losses
!
To ensure that the bare wire heating system is not dam-
aged following an interruption to the water supply, the
appliance must be restarted in the following sequence.
f Disconnect the appliance from the power supply by f
removing the fuses/tripping the MCBs.
f Open the tap for one minute until the appliance and f
its upstream cold water inlet line are free of air.
f Switch the mains power back ON again. f

12. Shutdown

f Isolate all poles of the appliance from the power supply. f
f Drain the appliance (see chapter "Installation / Maintenance / f
Draining the appliance").

13. Alternative installation options

13.1 Electrical connection from above on unfinished
walls
f Cut open the cable grommet for the power cable. f
f Push down the locking hook to secure the mains terminal. f
Pull out the mains terminal.
DHB STi | 25