Access To Internal Terminal Box; Assembly Of Cable Gland For Strain Relief - Helios KWL EC 170 W Installation And Operating Instructions Manual

Installation and Operating Instructions
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ATTENTION
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ATTENTION
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ATTENTION
Compact wall-mounted units KWL EC 170 W / W ET
3 .2 Condensation outlet
In connection with maintenance, make sure that the condensation outlet in the bottom reservoir is not
clogged (section 2.3). You may check it by pouring a little water into the siphon.
Do not let water flow into electrical parts!
The condensation outlet must be inspected or cleaned once every year!
3 .3

Access to internal terminal box

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Only carry out the work with EMC protection, otherwise EMC damage can occur!
Open unit cover and remove heat exchanger. Loosen recessed head screw in bottom of the terminal box. Gently pull
the plastic cover forward at the bottom edge and then pull downward.
In order to close the terminal box at the upper side of the cover, insert it into the guide pins in the provided recesses.
Check whether the ribbon cable of the humidity sensor is sitting centrally in the recess, so that it is not damaged. Then
swing cover down until it sits on the provided edge on the back side. Then insert the recessed head screw from below
and gently tighten.
3 .4

Assembly of cable gland for strain relief

1. Pry open electric cable sleeve and remove from cable (Fig.20).
2. Insert electric cable into the screwed cable gland (Fig.21).
3. Screwed cable gland with tapered edges (Fig.22).
4. Screwed cable gland into opening at an angle (Fig.23).
5. Re-counter and screw two-part screwed cable gland.
6. Pre-assembled cable anchorage for the elec. unit connection cable (Fig.24).
Fig .20
Fig .22
Tapered
edge
Fig .24
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Fig .21
Fig .23