Ventilation functionality
Introduction
Level of ventilation
Temperature com-
pensated operation
10
This section gives you a description of the ventilation functions of HRV 501.
The overall level of ventilation can be controlled automatically by using the week pro-
gram, or manually by selecting a fixed fan speed, as described at page 16
The rotor heat exchanger is controlled electronically, to optimize indoor comfort in dif-
ferent outside temperature conditions.
Heat recovery in situations when inside temperature is 3°C higher than outside
•
temperature
Cooling in summer conditions, when inside temperature is too high, and out-
•
side temperature is low enough to cool down the residence
Restore inside chill, when outside temperature is 3°C higher than inside.
•
Below table shows when heat or chill recovery is active
Inside temp
Cooling on/off
Rotor active
Heat recovery
Heat on/off
When rotor is off, it will turn for 60 seconds each hour, for hygienic reasons.
Rotor off
summer cooling
Rotor off
summer heating
Figur 2
Rotor active
chill recovery
Outside temp
Continued overleaf