Dhw Connection - STIEBEL ELTRON HSBB 3 S Bedienung Und Installation

INSTALLATION
Installation
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.
34 | HSBB 3

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.
1
The torque of the plastic union nut depends on the gasket
used.
2
15 Nm = pre-fitted soft rubber gasket.
3
25 Nm = alternative hard gasket.
f Keep to the permissible torque. f
Material losses
!
Operate the appliance only with pressure-tested taps.
11.7.1 Permissible materials
Cold water line
Galvanised steel, stainless steel, copper and plastic are approved
materials.
DHW line
Stainless steel, copper and plastic pipework are approved.
Material losses
!
The maximum permissible pressure must not be exceed-
ed (see chapter "Specification / Data table").
Safety valve on the domestic hot water side
f Install a type-tested safety valve in the cold water supply f
line. Please note that, depending on the supply pressure, you
may also need a pressure reducing valve.
f The safety valve discharge aperture must remain open to f
atmosphere.
f Install the safety valve drain pipe with a constant fall to the f
drain.
f Size the drain so that water can drain off unimpeded when f
the safety valve is fully opened.
f Flush the pipes thoroughly. f
1 Drain (DHW cylinder)
f Fill the DHW cylinder via the drain. 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
1
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