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Installation and Operating Instructions
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WARNING
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WARNING
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WARNING
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WARNING
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ATTENTION
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WARNING
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WARNING
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WARNING
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Central ventilation unit – KWL 200/300 W/W ET
8.3.2 Heat exchanger cleaning
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Risk of burns due to hot surfaces!
Hot surfaces can cause serious burns.
> Allow unit to cool down for at least 5 minutes or wait until the fans are turned off.
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Risk of injury due to rotating fans!
Rotating fans can injure limbs and cause serious injuries.
> Before working on the unit, wait until the fans are turned off.
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Risk of injury due to the unit door falling down!
The unit door can fall down when removing and cause serious injuries.
> Wear protective footwear.
> Carefully remove the unit door with both hands.
1. Open both upper snap-in hooks on the unit door.
2. Remove the unit door.
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Risk of injury due to the high weight of the heat exchanger!
The heat exchanger can fall down and cause serious injuries when removed from the unit.
> Wear protective footwear.
> Carefully remove the heat exchanger from the unit with both hands.
3. Remove terminal strip
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4. Carefully remove the heat exchanger
Damage to the heat exchanger due to the use of aggressive cleaning agents.
Aggressive cleaning agents can damage the heat exchanger.
> Do not use aggressive cleaning agents.
5. Clean the heat exchanger with a vacuum cleaner with a brush nozzle or with water.
6. During installation, place the heat exchanger
seals are not damaged!
7. Re-insert the terminal strip
8. Re-attach the unit door and close with the snap-in hooks.
8.4
Condensate drain maintenance
The condensate drain must be checked for functionality and, if necessary, replaced as needed and at least every 6
months.
Carry out functional inspection as follows:
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Risk of burns due to hot surfaces!
Hot surfaces can cause serious burns.
> Allow unit to cool down for at least 5 minutes or wait until the fans are turned off.
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Risk of injury due to rotating fans!
Rotating fans can injure limbs and cause serious injuries.
> Before working on the unit, wait until the fans are turned off.
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Risk of injury due to the unit door falling down!
The unit door can fall down when removing and cause serious injuries.
> Wear protective footwear.
> Carefully remove the unit door with both hand.
1. Open both upper snap-in hooks on the unit door.
2. Remove the unit door.
3. Pour some water into the condensation tray with a watering can.
4. Check whether the water drains via the condensate hose and clean the condensate drain, if necessary.
5. Re-attach the unit door and close with the snap-in hooks.
at top of heat exchanger (see Fig. 53).
from the unit (see Fig. 53).
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Fig. 53
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on the guide rail and push up to the stop. Ensure that the receptacle
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