1.
THREE QUESTIONS ABOUT VENTILATION
1.1. Why is air replaced in dwellings? ................................................p. 3
1.2. What are the characteristics of adequate ventilation? .....................p. 3
1.3. How much air is replaced? .........................................................p. 3
2.
INSTRUCTIONS FOR USING VALLOX 90K SC
2.1. Initial adjustment.........................................................................p. 4
2.2. Selection of fan speed .................................................................p. 4
2.3. Heat recovery bypass..................................................................p. 5
2.4. Air filtering.................................................................................p. 5
2.5. Defrosting ..................................................................................p. 5
2.6. Stopping the supply air fan ..........................................................p. 5
2.7. Outdoor air preheating................................................................p. 5
2.8. Post-heating................................................................................p. 5
3. MAINTENANCE
INSTRUCTIONS
3.1. Before starting maintenance operations .........................................p. 6
3.2. Filters ........................................................................................p. 6
3.3. Fans ..........................................................................................p. 7
3.4. Condensing water.......................................................................p. 7
3.5. Cooker hood..............................................................................p. 7
3.6. Other parts of the ventilation system ..............................................p. 7
4. TROUBLESHOOTING
.............................................................................p. 8