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- If this distance is not observed, the curtain may not work properly and the fans may be damaged or the
noise of the unit may increase. The curtain exhaust must be set in such direction that there is no draft in
the heated space, and, at the same time, for the best separation of spaces – to shield the inner space from
the external influence. The air flow exiting the exhaust grid must not be directed directly to walls, beams,
shelves, machines, etc.
3.1.5. Minimum safety distance from flammable substances
- The minimum safety distance from flammable substances is at least 0.1 m from the side of the curtain
(assess a suitable distance from the outlet of the exchangers due to easy connection) and 0.5 m in the
direction of suction of the curtain. Adjust the distances according to the layout of the space.
3.1.6. Operation environment of the curtain
- The curtain must be located / operated in an inner dry space with temperatures range from 5°C to +40°C
(the conditions must avoid water freezing in the exchanger – there is a risk of damage to the curtain) and
non-condensing humidity corresponding to protection class IP 54 and IP 44, according to the selected type
of curtain.
3.1.7. Levelling of the curtain
- The curtain must be always levelled – with spirit level in the appropriate plane in which it is operated!
3.2. Ceiling installations
- The curtain must stand on a flat, coherent and solid surface.
- The correct height of the curtain must be at least 100 mm longer than the actual height of the curtained
hole. If the height of the opening is greater than or equal to the height of the curtain, you must attach an
additional curtain, see Point 3.3.
3.2.1. Positioning the curtain in the working position
- Place the unpacked curtain in its working position.
- Place it close to the hole that should be curtained in such a way that:
o The edge of the exhaust curtain closer to the wall must be flush with the door frame hole, at a
minimum distance from the wall (see paragraphs 3.1.4. and 3.1.5.)
o Turn the curtain at 10° with the exhaust pointing out.
Curtain pre-blow setting - important for correct operation of the curtain
3.2.2. Fixing the curtain to the floor
- The curtain is fixed to the floor using the "WIND-HOLDER" (must be ordered as accessories).
- Screw the holder to the curtain with 6 screws M6x20 (a part of the packing of the “WIND-HOLDER”).
- Mark the center of the drilled holes in the four grooves for anchoring to the floor. The centre of the drilled
holes must be in the end positions of the anchoring grooves, for the possibility of increasing the curtain pre-
blow (even greater turning of the curtain out). The holder installed in this way allows an increase of the pre-
blow by up to 20°, i.e. the curtain may be rotated from 10° to 30°.
- Select suitable anchoring material and tools according to the floor material and type. Anchoring material is
not part of the delivery.
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