User guide

2. CONTROLS (CONT’D)

2.4 DECO-TOUCH MAIN CONTROL (ALL UNITS) (CONT’D)

In the operating modes MIN, MAX, 20 min./h. and RECIRC (if available), 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 at left). 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 willl not appear.

To engage the humidity 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 indicator will display “HI”.

To turn off the dehumidistat override, press OK again. The RH and %HUM display will

disappear from LCD screen.

DEHUMIDISTAT OVERRIDE SELECTION

The maintenance indicator is represented by an M in a rounded

triangle, at the top of the house (see at right). If this indicator

is flashing, perform the regular maintenance, and if it is not

flashing, perform the annual maintenance (refer to Section 3).

RESETTING MAINTENANCE INDICATOR: Press simultaneously on both arrow buttons,

maintenance indicator will disappear from LCD

screen.



AND

MAINTENANCE INDICATOR

After a power failure, the wall control returns to its original operation mode. All settings are

kept in memory.

POWER FAILURE