34
4.4.7
Inspecting the steam installation
Use the following check list to ascertain that the steam installation was
performed correctly:
– Steam distribution pipe
Steam distributors correctly positioned and secured (screws tight-
ened)?
Are the outlet orifices at right angles to the air flow direction?
– steam hose
Maximum length of 4 m?
Minimum bend radius of 300 mm (5 x internal diameter with fixed
piping)?
Have the instructions for hose positioning been followed?
Steam hose: no sagging (condensate pocket) or condensate drain
with siphon (hose bend with a minimum diameter of 200 mm) installed
at the lowest point?
Rigid steam lines: properly insulated? Correct installation material
used? Minimum internal diameter maintained?
Steam hose(s) securely attached with clamps?
Heat expansion during operation and shortening of the hose with
ageing taken into consideration?
– condensate hose
Downslope of at least 20 %?
Siphon (min. ø200 mm) existing and filled with water?
Condensate hose correctly fixed and not kinked?
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