Electrical Circuit - MAXA LWF 13 Benutzer- Und Installationsanleitung

■ At the end of the season (heating/cooling)
● Drain the water system (for all heat exchangers)
To avoid the risk of rupture due to freezing, it is advisable to drain the water from the system at the end of every season.
●

Electrical circuit

The following operations are recommended for the maintenance of the electrical circuit:
1. Check the unit 's power absorption using a clip-on ammeter and compare the reading with the values shown on the documentation;
2. Inspect and, if necessary, tighten the electrical contacts and terminals.
■ Non-scheduled maintenance
● Replacement of the blower assembly
In the case of burnout of the blower electric motor, it is necessary to replace the entire blower assembly.
● Procedure for removal of the blower
1. Remove the casing (on units of version I)
2. Disconnect the electrical supply cable from the blower;
3. Remove the screws on both sides, which hold the blower to the structure of the unit;
4. Take out the blower.
5. Procedure for refitting the blower is a reversal of the above.
● Replacement of the heat-exchanger coil
● Procedure for removal of the heat exchanger:
1. Remove the casing (on units of version I);
2. Isolate the flow and return water pipes;
3. Disconnect the coil from the water system;
4. Remove the screws on both sides, which hold the coil to the structure of the unit;
5. Take out the heat-exchanger coil.
6. Procedure for refitting the heat-exchanger is a reversal of the above.
fig. 3-12
fig. 3-13
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