fantech 415517 EDF8 Electronic Multifunction Dehumidistat Instruction Manual

fantech 415517 EDF8 Electronic Multifunction Dehumidistat

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.

ICONS AND CONTROL

OPERATION INDICATORS

Backlight
Pressing any button once will activate the back LED light but will not change any settings. Pressing a button a second time within 10 seconds will activate your selection.

MODES OF OPERATION

There are three (3) modes of operation that can be selected– Ventilation Mode, Recirculation Mode, and 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 recovering 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 distribute 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.

RELATIVE HUMIDITY

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 measurement is above the setpoint, the controller will place the HRV/ERV on the 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.

CAUTION
Failure to comply with the following can cause erratic operation of the unit:

Disconnect the power to the HRV/ERV unit before installing the ventilation control. Ensure that power is reconnected once the ventilation control has been installed. Failure to disconnect power before installation could damage the controller.

• Never install more than one central ventilation control per unit.
• Keep control low voltage wiring at least 1 foot (305mm) away from motors, lighting ballasts, and light-dimming circuits. Do not route control wiring alongside house power wiring.
• Ensure the wires are securely connected to the unit and wall control.

BEST PRACTICES

For optimal operation of the ventilation control, the following best practices are recommended during installation:

• The location of the ventilation control could affect the optimum performance. Therefore, it is recommended that the wall control be installed in a central location, away from direct sunlight and other sources of direct heat or cold such as an outside wall or adjacent to windows.
• Do not install a ventilation controller on the wall where the cavity is opened to other areas. Example: Furnace return in the wall cavity. If so, seal the back plate center opening with tape.

INSTALLATION STEPS

1. Detach the front module from the back plate by pressing the tab (located at the bottom of the control casing).
   NOTE: Be sure not to exert too much pressure on the tab.

2. Guide the signal wires (2) through the central opening of the back plate and mount this plate to either a standard electrical device box or directly to the wall using screws. If required, use wall anchors.
   NOTE: Be sure the screws are secure but do not over-tighten. This may result in damage to the back plate.

3. Insert signal wires (2) into the terminal block, located on the backside of the front module. Secure them in place by tightening the terminal screws using a small 3.0 mm slot/flathead screwdriver (not included).
   NOTE: The terminals are not polarity sensitive.

4. Attach the front module to the mounted back plate, first by hooking the top of the front module to the top clips of the back plate, then by pressing the bottom of the front module until you hear a ‘click’. Ensure the ventilation system operates correctly.
   NOTE: Be careful not to pinch or trap signal wires when attaching the front module to the back plate.

5. Connect wires to the terminal block of the unit (position WW or EDF). Refer to the unit`s installation manual for more details.

6. Leave operating instructions with the homeowner.

TROUBLESHOOTING

If error code 01 is displayed on the touchscreen control, disconnect the power to the HRV/ERV for 10 seconds and re-connect the HRV/ERV to power.

Contact Information

• United States 10048 Industrial Blvd. • Lenexa, KS 66215 • 1.800.747.1762 • www.fantech.net.
• Canada 50 Kanalflakt Way • Bouctouche, NB E4S 3M5 • 1.800.565.3548 • www.fantech.net.

Fantech reserves the right to modify, at any time and without notice, any or all of its product features, designs, components, and specifications to maintain its technological leadership position.

References

• We simplify ventilation solutions | Fantech

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