May be subject to change Page 23 of 33Air exchangeThe menu AIR EXCHANGE gives the possibility of choosing a low ventilating step at low outdoortemperatures.Options that flash are indicated by ” ”.On the CTS 602 control panel, press:- ESC to return to the previous menu- qp to scroll upwards or downwards through the menus or toadjust the setting of an activated menu option- ENTER to activate a menu option- ENTER to confirm a new menu option setting- OFF to switch off the controls- ON to switch on the controlsWINTERLOW 3Option for low ventilationlevel at a low outsidetemperatureENTEREXCHANGEAIR ENTERENTER ENTER”3"ENTER< 0°C < 0 °C” ”LOWWINTERWINTER WINTERCan be set to OFF, 1, 2, 3.When the outdoortemperature is below thisset temperature the systemwill run at the lowerventilating step.Figure 17: The "Air exchange" menu