19
Always ventilate with a high enough efficiency!
Otherwise the indoor humidity will rise
too high and condensation will form on for instance cold window surfaces.
The recommended relative humidity for indoor air is 40 …45 % (room temperature
20...22 °C). At these levels condensation will not form and the humidity is at a healthy
level. By monitoring the humidity of the indoor air with a humidity sensor, the ventilation
can be increased when the humidity rises over 45%. Alternatively the ventilation can be
reduced if the humidity of the indoor air falls below 40%.
Change the filters often enough!
During the winter time the exhaust air filter becomes
dirty more quickly than the fresh air filter. In this case the exhaust air flow will decrease,
which then leads to a rise in the humidity, and also the decline of the incoming air
temperature. With every filter inspection / change, check that the heat exchanger functions
correctly.
TO BE OBSERVED DURING OPERATION!
HEAT RECOVERY EFFICIENCY
LTR-3 efficiency %
Air volume l/s
____ Supply/Exhaust air ratio 1.0 _ _ _ Supply/Exhaust air ratio 0.85
LTR-3 efficiency %
Air volume l/s
LTR-3 efficiency %
Air volume l/s
____ Supply/Exhaust air ratio 1.0 _ _ _ Supply/Exhaust air ratio 0.85
Summary of Contents for LTR-3 Series
Page 20: ...20 CHARASTERISTICS...
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Page 22: ...22 WIRING DIAGRAMS...
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Page 26: ...26 PLANNING EXAMPLE LTR 3...
