Inspecting The Steam Installation - Nordmann AT4 Series Mounting Instructions

5.4.7

Inspecting the steam installation

46
Use the following check list to ascertain that the steam installation was
performed correctly:
– Steam distributors
Steam distributors (steam distribution pipe or MultiPipe steam distri­
bution system) correctly positioned and secured (screws tightened)?
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?
Is the lead through of the steam hose on top of the unit sealed
(safeguarding of the IP21 protection)?
– Condensate hose
Downslope of at least 20 %?
Siphon (min. ø200 mm) existing and filled with water?
Condensate hose correctly fixed and not kinked?