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Air-ducting system<br />
for TopTherm roof-mounted cooling units<br />
With the air duct system, it is possible to route the cold air<br />
directly to specific areas of the enclosure. This effectively<br />
eliminates the risk of “short circuits” in the air circulation due<br />
to self-ventilated components.<br />
Note:<br />
● Never direct the cold air flow straight at active components.<br />
● Route the air duct system directly downwards with no<br />
bends.<br />
● Cold air must be able to escape unobstructed at the end of<br />
the duct.<br />
● Additional deflections will reduce the useful cooling output.<br />
● When using the ducting system, the performance of the<br />
cooling unit may be reduced, depending on the respective<br />
application.<br />
● The air duct system should not be extended.<br />
CAUTION Risk of icing!<br />
Stopper<br />
for TopTherm roof-mounted cooling units<br />
For sealing any cold air outlets that are not required.<br />
Note:<br />
At least one outlet opening must always remain open!<br />
Please note that if two or three openings are closed, the cooling<br />
output may be reduced by 20 % and 30 % respectively!<br />
<strong>SK</strong> 3286.880 for units<br />
<strong>SK</strong> 3383.xxx<br />
<strong>SK</strong> 3384.xxx<br />
<strong>SK</strong> 3385.xxx<br />
<strong>SK</strong> 3286.780 for units<br />
<strong>SK</strong> 3382.xxx<br />
<strong>SK</strong> 3359.xxx<br />
<strong>SK</strong> 3286.980 for units<br />
<strong>SK</strong> 3386.xxx<br />
<strong>SK</strong> 3387.xxx<br />
<strong>Rittal</strong> <strong>System</strong> <strong>Climate</strong> <strong>Control</strong><br />
<strong>SK</strong> 3273.xxx<br />
Accessories:<br />
1 Air duct system for roof-mounted units,<br />
see Cat. 31, page 658.<br />
max. 3x<br />
max. 2x<br />
1<br />
Cooling units<br />
Air routing<br />
37<br />
4.4
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