Venting The Appliance; Dhw Connection - STIEBEL ELTRON HSBB 3 Bedienung Und Installation

INSTALLATIoN
Installation
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1 Diaphragm expansion vessel (heating system)
2 Cap shut-off valve
3 Drain valve (heating system)
f Fill the heating system via the drain valve. f
f After filling the heating system, check the cap shut-off valve f
at the diaphragm expansion vessel for tightness.
f Vent the pipework. f
11.5.3 Filling the DHW cylinder
1 Drain valve (DHW cylinder)
f Fill the DHW cylinder via the drain valve. f
f Open all downstream draw-off valves/taps until the appli- f
ance is full and the pipework is free of air.
f Carry out a tightness check. f
f Check the safety valve. f

11.6 Venting the appliance

Multi-function assembly (MFG)
1 Air vent valve
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2
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f Vent the pipework by pulling up the red cap on the air vent f
valve.
f Close the air vent valve after the venting process. f
Safety valve on the heating water side
1 Drain hose
2 Fixing
3 Drain
f Size the drain pipe so that water can drain off unimpeded f
when the safety valve is fully opened.
f Ensure that the drain hose of the safety valve is open to the f
outside.
f Install the drain hose of the safety valve with a constant fall f
to the drain. When installing the drain, never kink the drain
hose.
f Secure the drain hose by suitable means, to prevent any hose f
movement in the event of water being discharged.

11.7 DHW connection

To connect the DHW, remove the lower front panel (see chapter
"Maintenance / Removing the lower front panel").
Material losses
!
Carry out all water connection and installation work in
accordance with regulations.
Material losses
!
The DHW outlet connection is pre-fitted with a plastic
union nut and a soft rubber gasket.
The torque of the plastic union nut depends on the gasket
used.
15 Nm = pre-fitted soft rubber gasket.
25 Nm = alternative hard gasket.
f Keep to the permissible torque. f
Material losses
!
Operate the appliance only with pressure-tested taps.
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HSBB 3 | 31