Installation and operating instructions MHS400 smart
05.2017 37
7.12 Completing the installation
Checking the functionality of the HS element manually with the MHS400 smart system installed
So that friction and resistance can be identified during manual operation of the lift & slide sash, the slide drive should be
decoupled from the sash. To do this, simply release the catch on the slide drive SA from the catch base on the lift & slide sash
and pull out the plug of the connection cable for the lift drive HA in the slide drive SA.
Possible causes of malfunctions affecting the MHS400 smart
• Changes to the HS element following assembly of the MHS400 smart (e.g. changes to stoppers, end pieces, etc.)
• Seals on HS element too stiff or not fitted correctly
• Seal lip is rubbing against the guiding rail
• During travel, the cable holders in the sash groove at the top are rubbing against the guiding rail
• The front and rear guides at the top are not positioned correctly in the sash groove (e.g. installed too high up)
• The HS element has been installed warped and/or at an angle or not vertically plumb in the reveal
• Threshold not aligned precisely horizontally
• Heavy soiling on or significant damage to the running rail
• Thermal characteristics of the material not taken into account (e.g. continuous exposure to direct sunlight, dark shade of
the HS element components)
• HS element not glazed or wedged properly
The causes should be remedied by qualified professionals taking the appropriate actions.
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