MAINTENANCE INDICATOR
THE MAINTENANCE INDICATOR IS REPRESENTED
BY AN M IN A ROUNDED TRIANGLE, AT THE TOP
OF THE HOUSE (SEE BESIDE). IF THIS INDICATOR
IS FLASHING, PERFORM THE SEMI-ANNUAL
MAINTENANCE, AND IF IT IS NOT FLASHING, PERFORM
THE ANNUAL MAINTENANCE (REFER TO THE
VENTILATION UNIT USER GUIDE).
DEHUMIDISTAT OVERRIDE SELECTION
IN THE OPERATING MODES MIN, MAX, 20 MIN/H AND RECIRC, THE USER CAN
SELECT A DEHUMIDISTAT OVERRIDE SO THAT IF THE RELATIVE HUMIDITY (RH) IN THE
HOUSE EXCEEDS THE RH SETTING PREVIOUSLY STORED, THE VENTILATION UNIT WILL
EXCHANGE IN HIGH SPEED UNTIL THE TARGET INDOOR RH SETTING IS REACHED.
AN AIR EXCHANGER IS NOT A DEHUMIDIFIER, BUT IT CAN CHANGE THE INDOOR RELATIVE
HUMIDITY BY BRINGING IN DRIER OR MORE HUMID AIR FROM OUTSIDE DURING NON
HEATING SEASON. THE DEHUMIDISTAT OVERRIDE FUNCTION IS USEFUL TO REDUCE
INDOOR RH WHEN THE OUTDOOR AIR IS COOL AND DRY DURING THE HEATING SEASON.
SELECT A TARGET RH BETWEEN 30% AND 55% ACCORDING TO YOUR COMFORT.
WHEN OUTDOOR RELATIVE HUMIDITY IS HIGH (E.G. IN SUMMER), TURN OFF THE OVERRIDE
BY PRESSING OK UNTIL THE RH DISPLAY DISAPPEARS.
WHEN THE DEHUMIDISTAT OVERRIDE IS ACTIVATED, THE AUTO INDICATOR
WILL APPEAR ON LCD SCREEN TO SHOW THAT THE ACTUAL MODE IS
BEING OVERRIDDEN. ALSO, THE RELATIVE HUMIDITY APPEARS (IF IT WAS
NOT SHOWN, SEE EXAMPLE BESIDE). ONCE THE TARGET HUMIDITY
LEVEL IS REACHED, THE UNIT GOES BACK INTO ITS ORIGINAL OPERATING
MODE AND AUTO DISAPPEARS FROM LCD SCREEN.
NOTE: IF THE ACTUAL MODE IS MAX, ONLY THE RELATIVE HUMIDITY LEVEL
APPEARS ON SCREEN; AUTO LABEL WILL NOT APPEAR.
TO ENGAGE THE DEHUMIDISTAT OVERRIDE, PRESS OK. THE ACTUAL INDOOR RH AND
THE %HUM LABEL APPEAR ON LCD SCREEN.
NOTE: IF THE ACTUAL RH IS LESS THAN 20%, THEN THE HUMIDITY INDICATOR
WILL DISPLAY “LO”, AND IF THE ACTUAL RH IS GREATER THAN 80%, THEN
THE HUMIDITY NDICATOR WILL DISPLAY “HI”.
TO TURN OFF THE DEHUMIDISTAT OVERRIDE, PRESS OK AGAIN. THE RH AND %HUM
DISPLAY WILL DISAPPEAR FROM LCD SCREEN.
POWER FAILURE
AFTER A POWER FAILURE, THE WALL CONTROL RETURNS TO ITS ORIGINAL OPERATION
MODE. ALL SETTINGS ARE KEPT IN MEMORY.
ERROR CODES
IF THERE IS A PROBLEM WITH THE WALL CONTROL, AN ERROR CODE WILL APPEAR ON
THE SCREEN; IT COULD BE E1, E3 OR E7. IS THIS SITUATION OCCURS, UNPLUG THE
VENTILATION UNIT FOR 20 SECONDS AND THEN REPLUG IT. IF THE ERROR CODE IS STILL
PRESENT, PLEASE CALL YOUR INSTALLER.
PRESS OK BUTTON TO ACCEPT AND
QUIT SETTING MENU.
OFF IN STAND BY:ON20 MIN/H MODE, THE VENTILATION UNIT IS OFF DURING
40 MINUTES AND EXCHANGE AIR WITH THE OUTSIDE ON LOW SPEED
DURING THE REMAINING 20 MINUTES OF THE HOUR. THIS IS THE
DEFAULT VALUE.
RECIRCULATION IN STAND BY:ON20 MIN/H MODE, THE VENTILATION UNIT
RECIRCULATES THE INSIDE AIR FOR 40 MINUTES
ON HIGH SPEED AND EXCHANGE AIR WITH THE
OUTSIDE ON LOW SPEED DURING THE REMAINING
20 MINUTES OF THE HOUR.