www.stiebel-eltron.com LWZ304-404 SOL | 17
INSTALLATION
Installation
26_03_01_0693
Ø Tube diameter mm 22
A Insertion depth mm 38
!
Material losses
Pipe ends must be deburred.
Always use a pipe cutter to trim pipes.
Push the pipe through the O-ring into the push-fit connector
until it reaches the prescribed insertion depth.
Tighten the screw cap fully to the joiner body until fin-
ger-tight. This locks the push-fit connection.
Undoing the push-fit connection
If the push-fit connectors later need to be undone, proceed as
follows:
Turn the screw cap anti-clockwise until a there is a narrow
gap of approx. 2mm. Press the retainer back with your fin-
gers and hold on to it.
Pull out the inserted pipe.
26_03_01_0693
5.3.2 Connecting modules with push-fit connectors
Connect the pipes inside the function module to the push-fit
connectors that you previously attached to the cylinder mod-
ule pipes.
Refit the high limit safety cut-out retaining bracket from the
inside using the slots and secure the bracket.
5.4 Heating water connection
The heating system must be connected by a qualified contractor in
accordance with the water installation drawings, which are part of
the technical guides. You can use the push-fit connectors supplied
or ball valves to make the connection of the flow and return.
Note
Deburr the pipe ends.
A filter ball valve is provided for the return. Two union nuts and
two short flanged copper pipe ends are provided for fitting a ball
valve.
As a suitable point, install an air vent valve at the highest
point of the heating system.
Thoroughly flush the pipework before connecting the ap-
pliance. Foreign bodies such as welding pearls, rust, sand,
sealant, etc. can impair the operational reliability of the ap-
pliance, and can lead to the condenser becoming blocked.
Remove the protective caps from the heating flow and heat-
ing return connections.
Heating return connection
1
2
3
4
3
5
2
3
6
3
26_04_01_0629
1 Heating return connection
2 Plug-in connector
3 Flanged pipe
4 Filter ball valve
5 Heating flow connection
6 Ball valve
Using a push-fit connector, connect one of the flanged pipes
supplied to the heating return connection.
Connect the filter ball valve to the flanged pipe end.
Reconnect a flared pipe to the end of the ball valve.
Connect the flanged pipe with a push-fit connector to the
heating circuit return.
Heating flow connection
Using a push-fit connector, connect one of the flanged pipes
supplied to the connection for the heating flow.
Connect a ball valve to the flanged pipe end.
Connect a flanged pipe to the other side of the ball valve.
Connect the flanged pipe with a push-fit connector to the
heating circuit flow.
Thermal insulation
Provide thermal insulation in accordance with current
regulations.
Water quality
Carry out a fill water analysis before the system is filled. This may,
for example, be requested from the relevant water supply utility.
To avoid damage as a result of scaling, it may be necessary to
soften or desalinate the fill water. The fill water limits specified
in chapter "Specification/ Data table" must always be observed.
Recheck these limits 8-12 weeks after commissioning and as
part of the annual system maintenance.
To Next Page
Loading...
Need help?
General
