SAVE VTR 700 USER MANUALV1 20210507 095614499

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Maintenance
Caution
Risk of personal injury! The heat exchanger weighs about 25 kg.
There is a risk that the heat exchanger falls out of the unit.
Even if the required maintenance is carried out, dust will build up in the ex-
changer block. It is therefore of vital importance for the upkeep of a high effi-
ciency that the exchanger block is removed from the unit and cleaned
periodically as described below. Clean the heat exchanger at least every 3
years or when required.
1. Stop the unit by disconnecting the mains.
2. Open the front hatch. See chapter 4.2.
3. Disconnect the heat exchanger power supply and the rotor sensor. Both
cables are found beside the heat exchanger.
4. Pull out the rotor towards you. Some force may be needed.
5. Gently vacuum the heat exchanger.
Warning
Ensure the rotor motor is not exposed to moisture
6. Remount the rotor. Don’t forget to reconnect the rotor power and sensor
cables.
7. Close and lock the front hatch and connect the unit to mains.
4.5 To clean fans
Danger
• Make sure that the mains supply to the unit is disconnected before performing any maintenance or
electrical work!
Warning
• Risk of injury due to rotating parts that have not come to a complete standstill after mains supply to the
unit have been disconnected.
Warning
• Beware of sharp edges during mounting and maintenance. Use protective gloves.
Fig. 6 Removing and cleaning the fans
The motor bearings are life time lubricated and maintenance free.
Even if the required maintenance, such as changing of filters is carried out, dust and grease may slowly build up inside
the fans. This will reduce the efficiency.
The fans may be cleaned as described below.
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