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Assembly instructions
5
Pre-commissioning checks
Check before initial commissioning whether all necessary conditions have been met so that the
unit can function safely and properly.
Electrical tests
Check whether all lines have been properly laid.
Check whether all lines have the necessary cross-section.
Are all wires connected in accordance with the electric wiring diagrams?
Is the earth wire connected and wired throughout?
Check whether the fault signal contacts of the EC fans have been correctly connected
(break contacts in series with multiple units).
Check all external electrical connections and terminal connections are fixed in place and
tighten if necessary.
Check whether DIP switches have been correctly set in accordance with the wiring diagram.
Water-side checks
Check whether all supply and drainage lines have been properly connected.
Fill pipes and unit with water and bleed.
Check whether all bleed screws are closed.
Check leak tightness (pressure test and visual inspection).
Check whether the parts carrying water have been flushed through.
Check whether any shut-off valves fitted on site are open.
Check whether any electrically actuated shut-off valves have been properly connected.
Check whether all valves and actuators are working properly (note permitted mounting pos-
ition).
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