Air Purifier Operation And Installation Manual

Some models have a built-in dehumidistat (an

optional remote wall mount dehumidistat can be

installed, see Optional Remote Controls), to

control harmful, excess humidity during the

heating season. The dehumidistat operates in

% of RH (relative humidity) with 80 being high

and 20 being low. The average person is

comfortable between 30-45%.

The dehumidistat will overide the ventilator to

high speed when the moisture level in the home

exceeds the set point on the control. Once the

humidity in the house is reduced, the HRV/ERV

will revert back to its previous setting.The

dehumidistat should be set to off for all seasons

except the heating season.

Note: If your HRV/ERV is equipped with an internal

and an external dehumidistat, the internal one can be

turned off and not used.

USING THE DEHUMIDISTAT

Internal Dehumidistat with External Control Knob