Häfele DT 700 Instructions De Montage Et De Maintenance page 14

5.5 Additional require-
ments for
emergency exit
devices when used
on fire / smoke
doors
5.6 Maintenance
instruction
14
There should be a sign which reads "Rotate handle to open" or a pictogram
on the inside face of the door, immediately above the operating element or on
the operating element itself. (see sample below)
With type "B" emergency exit devices (DT700/DT710) which are intended for use on in-
wardly opening exit doors, a sign which reads "Rotate handle and pull to open" or a pic-
togram should be provided on the inside face of the door immediately above the pull pad.
The surface area of the pictogram should be at least 8000 mm², and the colours should
be white on a green background.
Restriction on intended use of the DT 700/710 with EN 179:
- Only for single doors
- Direction of escape opening inwards or outwards
- Version as rebated door
The maximum permissible door weight is 200kg.
The maximum permissible distortion of the door leaf in relation to the rebate is 3mm.
In accordance with EN 1634-1 test report no. DMT-DO-50-229-002, the resistance time
in a single door structure approx. 65mm thick made from wood and wood materials with
thermal insulation EI1 and EI2 is 103 minutes.
The safety features of this product are an important prerequisite for its conformity with
DIN EN 179.No modifications whatsoever may be made that are not described in the in-
structions.
Safety note: The key of the profile cylinder or the single profile cylinder must al-
ways be removed.
To ensure performance in accordance with this document, the following routine
maintenance checks should be undertaken at intervals of no more than one
month:
• Inspect and operate the emergency exit device in order to ensure that all components
are in a satisfactory working condition.
• The operating forces to release the exit device must be measured and recorded using
a force gauge.
• Ensure that the keeper(s) (strike(s)) is (are) free from obstruction.
• Check that the emergency exit device is lubricated in accordance with the
manufacturer's instructions.
• Check that no additional locking devices have been added to the door since its
original installation.
• Check periodically that all components of the system are still correct in accordance
with the list of approved components originally supplied with the system.
• Check periodically that the operating element is correctly tightened and, using a force
gauge, measure the operating forces to release the exit device. Check that the
operating forces have not changed significantly from the operating forces recorded
when originally installed.