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Item #: 413900

Rev Date: 013014

To set the humidity level, press and hold the Auto button (figure 1) until the SET icon appears. Press the UP and DOWN arrows to increase or decrease the relative humidity setpoint level. To 
confirm the setpoint, either press the AUTO button once or wait for the SET icon to disappear. Once confirmed, the room’s indoor relative humidity level will be displayed. 

NOTE: The displayed relative humidity is accurate to +/- 5% relative humidity. The measured relative humidity may be different than what is measured by other instruments in the same room 
because of airflow currents, local heat sources, etc. 

When the room relative humidity measured is above the setpoint, the controller will place the HRV/ERV on Ventilation Mode at normal speed. If there is less moisture in the outdoor air, this 
will help lower the indoor relative humidity by providing fresh air from the outside. During summer, when the outdoor air is typically more humid than the indoor air, high speed ventilation may 
increase the indoor relative humidity. To prevent this, you can deactivate the humidity setpoint by pressing the AUTO button once. The HUM icon and the indoor relative humidity value icon 
disappear, indicating that the setpoint is deactivated. To reset, simply press the AUTO button again and the HUM and indoor relative humidity icons will reappear. 

General information

This unit allows you to control your home’s ventilation system. Your ventilation system takes stale air from the inside of your home and replaces it with fresh outdoor air while recovering the 
energy of the air that’s exhausted to the outside.  

OPERATING INSTRUCTIONS

Edf 7 – ElECTRONIC mUlTIfUNCTION dEhUmIdISTAT

*Compatible with ShR/VhR (hRV), SER (ERV) and flEX Series units

for more information regarding the Edf 7, please visit www.fantech.net.

ICONS ANd CONTROl

OPERATION INDICATORS

  

Ventilatation

Mode

  

Recirculation

Mode 

  

Stand by

Mode

  

Fan speed level  

  

Fan operation  

Animation

 

mOdES Of OPERATION

There are three (3) modes of operation that can be selected– 

Ventilation mode, Recirculation mode, Stand by mode

 using the MODE button (refer to figure 1). Once  you’ve selected the operation mode, 

the fan speed can be selected. –

Reduced, medium, Normal or 20min/h 

using the arrow buttons (refer to figure 1)

.

Ventilation Mode - Your ventilation system takes stale air from the inside of your home and replaces it with fresh outdoor air while recovery the energy of the air that’s exhausted to the 
outside.  

Recirculation Mode – Your ventilation system takes air from areas of your home and redistributes it in other rooms to avoid stagnant air areas and to distributes heated or cooled air. No 
outdoor air is introduced to the building. 

Standby Mode - The ventilation system is inactive unless the indoor relative humidity is above the setpoint on the control or a timer switch (installed separately) is activated. 

VENTILATION MODE

SELECTION

Ventilation system exchanges

indoor air  for outdoor air.

             20 

min/hr

min/hr

min/hr

FAN SPEED 

SELECTION

The indoor air is circulated 
within the house.

The ventilation system is on 
stand-by

Reduced

Normal 

Medium 

RElATIVE hUmIdITy 

Backlight

Pressing any button once will activate the back LED light but will not change any settings. Pressing 
a button a second time within 5 seconds will activate your selection.

Arrow Button

MODE Button

AUTO Button

figure 1

figure 2

VENTILATION MODE

SELECTION

Ventilation system exchanges

indoor air  for outdoor air.

             20 

min/hr

min/hr

min/hr

FAN SPEED 

SELECTION

The indoor air is circulated 
within the house.

The ventilation system is on 
stand-by

Reduced

Normal 

Medium 

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