MEASUREMENT AND ASSEMBLY MANUAL
Validity of the manual: 1. 9. 2014
4
Chain:
If a breakaway coupler is used:
The chain length must be limited as follows:
1) If installation height (H0) is not specified, the chain length (H2) shall be less than or equal to 2/3 of the blind height
(see Fig.
): H2 ≤ 2/3 H.
2) If installation height (H0) is specified, the distance from the floor to the bottom part of the pull cord (H1) shall be at
least 0.6 m: H1 > 0.6 m.
A dangerous loop must be eliminated when a mass of 6 kg is applied or within 5 seconds of application.
APPLY ONE HALF OF THE COUPLER TO EACH END OF THE CHAIN AND THEN LOCK BOTH COUPLER
HALVES.
If a fixed tensioning system
– pulley – is used:
The pull cord length must be limited as follows:
1) If installation height (H0) is not specified, and
i) if the blind height (H) is less than or equal to 2.5 m, the length of the pull cord(s) (H2) shall be less than or equal
to 1 m (see Fig.): H2 ≤ 1 m.
ii) if the blind height (H) exceeds 2.5 m, the length of the pull cord(s) (H2) shall be less than or equal to the height
of the blind minus the value of 1.5 m (see Fig. 6): H2
≤ H - 1.5 m.
