Schwank 20S L Technical Manual page 33

NOTE: Select the cut outs large enough to
compensate the thermal length expansion of
the heater!
11. Insert front protection cover burner between front
cover plate reflector and burner unit and fix it with
supplied cable straps or similar on protection grid
burner top (Fig. 32, page 34).
12. Protection grid burner end side has to be cut hole
depends on installation on-site for gas line.
Fix with supplied cable straps or similar on
protection grid burner top.

Please note the required number and
length of segments ball protection grids
for each type of heater. Compare this to
the tabular and graphical overview.
Fig. 27: Overview of ball guard
novoSchwank L
33