KOVIET RVF8 (01) PDF Document

Failure to follow these instructions may result in electric shock, fire, personal injury, or damage to the unit.

• Always unplug the fan before moving it to a different location.

• Use only with a power supply that matches the rated voltage. Using an incompatible power source may cause fire or electric shock.

• Stop using the fan immediately if you notice smoke, unusual odors, abnormal motor sounds, or any other malfunction. Continued use may result in fire or electric shock.

• Do not attempt to disassemble, repair, or modify the unit while it is in operation. This can lead to electric shock, fire, or personal injury.

• Do not use the fan in or near a window. Exposure to rain may cause electrical hazards.

• Do not damage, modify, excessively bend, pull, bind or place heavy objects on the power cord. Doing so may cause electric leakage, fire, or electric shock.

• If the fan will not be used for an extended period, unplug it from the power outlet.

• If the power cord is damaged, do not attempt to repair it yourself. Contact your local service center or a qualified electrician for replacement to avoid risk of injury or damage.

• Never insert fingers, pencils, or any other objects through the safety guard while the fan is operating.

• When unplugging the fan, always hold the plug-do not pull the cord. Pulling the cord may damage it and cause electric shock or fire.

• Always disconnect the power before cleaning the fan.

• Front Faceplate x1

• Rear Faceplate x1

• Front Faceplate Stencil x1

• Rear Faceplate Stencil x1

• Screws and Anchors x8

• Adapter x1

• Remote Control x1 (Batteries not included)

• User Manual x1

This model improves ventilation between rooms through wall fans, making it ideal for offices, workshops, recreation rooms, laundry rooms, bedrooms, guest rooms, and other areas that might not otherwise have access to proper airflow.

The system utilizes high-performance DC motors controlled by PWM (Pulse Width Modulation). This technology allows the dual fans to operate smoothly at extremely low RPM speeds without generating motor or electromagnetic noise. Additionally, the fans feature blades designed with a high static pressure rating, making them perfect for applications where airflow is restricted, such as through ductwork. The motor housing allows the fan system to be mounted either horizontally or vertically.

Step 1. Choose a mounting location free of obstructions (e.g., studs, waterlines, electrical cords, etc.). Ensure the wall is 3.5 to 6.2 inches thick. Use the rear faceplate stencil to mark the center point, mounting points, and the circular outline.

Step 2. From the center point, measure the distance to the end of the wall (X) and the height to the floor (Y). Keep these measurements for Step 7.

Step 3. Drill the mounting holes into the wall. Cut the circular outline to create the opening using a saw for best results.

Step 4. Insert the included anchors into the mounting holes.

Step 5. Position the rear faceplate into the circular cutout, ensuring the mounting holes align.

Step 6. Secure the rear faceplate by drilling the screws into the anchors.

Step 7. On the opposite side of the wall, mark the center point using the length (X) and height (Y) from Step 2.

Step 8. Place the front faceplate stencil over the center point, then mark the mounting points and circular outline.

Step 9. Drill the mounting holes into the wall. Cut the circular outline to create the opening. Again, using a saw is recommended.

Step 10. Insert the included anchors into the mounting holes.

Step 11. Insert the front faceplate into the circular cutout, ensuring the mounting holes align. The cylinder should easily slide into the rear faceplate’s cylinder.

Step 12. Route the power cord through the opening at the lower right corner to ensure the front faceplate is flush against the wall.

Step 13. Secure the front faceplate by drilling the screws into the anchors.

Step 14. Insert the power adapter cable into the unit’s power socket. Then, plug the AC power cord into a wall outlet to power the fan.

MODE Button: Cycles through the controller’s modes: ON, OFF, AUTO (HIGH / LOW TEMP), TIMER (TIMER TO ON / OFF), and CYCLE (ON / OFF / CYCLE TIMES).

SETTING Button: Cycles through the controller’s settings: DISPLAY, °F/°C, CALIB, and F/R (airflow direction).

UP / DOWN Buttons: Adjusts values in the selected mode. The UP arrow increases the value, and the DOWN arrow decreases it.

Child Lock: The lock icon indicates when Child Lock is enabled. Press and hold the MODE button for 3 seconds to toggle.

Sensor Temperature: Displays the current room temperature.

Fan Speed Level: Displays the current fan speed level.

Countdown: Shows remaining time in TIMER mode (TIMER TO ON / OFF) or remaining cycles in CYCLE TIMES mode.

User Settings: Displays the current value for the selected mode.

NOTE 1: Each mode functions independently. Only one mode can be active at a time.

NOTE 2: Mode settings are automatically saved, so there is no need to reconfigure after restarting the device.

ON Mode

• Press the MODE button to select ON mode.

• Use the UP/DOWN buttons to adjust the fan speed level (0–10).

• The speed set in this mode also applies to other modes.

OFF Mode

• Press the MODE button to select OFF mode.

• The fan will stop, and the speed will display as “0”.

AUTO Mode

• Press the MODE button to enter AUTO mode.

• When either HIGH TEMP or LOW TEMP is enabled, the corresponding indicator will flash.

AUTO HIGH TEMP

• Use the UP/DOWN buttons to set the HIGH TEMP trigger.

• The fan will activate when the room temperature rises above the set value and gradually increase to the speed set in ON mode.

• To disable, press and hold the UP and DOWN buttons simultaneously for 3 seconds.

AUTO LOW TEMP

• While in HIGH TEMP mode, press the MODE button again to enter LOW TEMP.

• Use the UP/DOWN buttons to set the LOW TEMP trigger.

• The fan will activate when the room temperature falls below the set value and gradually increase to the speed set in ON mode.

• To disable, press and hold the UP and DOWN buttons simultaneously for 3 seconds.

Auto Range Setting

• To operate the fan within a specific temperature range, set the HIGH TEMP trigger lower than the LOW TEMP trigger. The fan will only work if the sensor temperature stays within this range.

NOTE: Both HIGH TEMP and LOW TEMP must be enabled for this function.

TIMER Mode

• Press the MODE button to enter TIMER mode.

• This is a standalone mode used to set fan turn-on or turn-off timers. It cannot be used together with other modes.

TIMER TO ON

• Use the UP/DOWN buttons to set a startup countdown (max: 19h59min).

• After the countdown, the fan runs at the ON mode speed.

TIMER TO OFF

• While in TIMER TO ON mode, press the MODE button again to enter TIMER TO OFF.

• Use the UP/DOWN buttons to set a shutdown countdown (max: 19h59min).

• The fan stops when the countdown ends.

CYCLE Mode

• Press the MODE button to enter CYCLE mode. Set alternating ON and OFF durations for automatic cycling.

Step 1 CYCLE ON: Use the UP/DOWN buttons to set the ON duration (max: 19h59min).

Step 2 CYCLE OFF: Press the MODE button again to enter CYCLE OFF. Use the UP/DOWN buttons to set the OFF duration (max: 19h59min).

Step 3 CYCLE TIMES: After setting CYCLE OFF, press the MODE button again to enter CYCLE TIMES. Use the UP/DOWN buttons to adjust the number of cycles (max: 1999). The setting will confirm automatically after 3 seconds of inactivity. The fan will stop when the countdown reaches “0”. “—” means unlimited continuous cycling based on ON/OFF durations.

DISPLAY Settings

• Press the SETTING button to enter DISPLAY settings.

• Use the UP/DOWN buttons to switch brightness: Level 1, 2, 3, or “A3”.

• Level 3 = Maximum brightness

• Level 1 = Minimum brightness

• “A3” turns off the screen after 30 seconds of inactivity, while the fan keeps running.

°F/°C Settings

• Press the SETTING button to enter DISPLAY settings, then press the MODE button to select °F/°C.

• Use the UP/DOWN buttons to switch between Fahrenheit (°F) and Celsius (°C).

• All temperature readings will update accordingly.

CALIB Settings

• Press the SETTING button to enter DISPLAY settings, then press the MODE button to select CALIB.

• Use the UP/DOWN buttons to manually calibrate the sensor temperature in 1-unit increments (range: -9 to 9) to match the actual temperature.

F/R Settings

• Press the SETTING button to enter DISPLAY settings, then press the MODE button to select F/R.

• Use the UP/DOWN buttons to adjust airflow direction:

• F (Forward Airflow) – Fan icon spins clockwise

• R (Reverse Airflow) – Fan icon spins counterclockwise

NOTE: Batteries are not included. Install 2 AAA batteries before using the remote.

ON: Press and hold for 5 seconds to pair the remote (a beep confirms). Press to enter ON mode. Use the left/right arrow buttons to adjust the fan speed.

OFF: Press to enter OFF mode. The fan will stop running.

AUTO: Press to enter AUTO mode. Use the left/right arrow buttons to select HIGH TEMP or LOW TEMP. Use the up/down arrow buttons to set the trigger temperature. To disable HIGH TEMP or LOW TEMP, set the value to OFF (between 0 and -1).

TIMER: Press to enter TIMER mode. Use the left/right arrow buttons to select TIMER TO ON or TIMER TO OFF. Use the up/down arrow buttons to set the countdown.

CYCLE: Press to enter CYCLE mode. Use the left/right arrow buttons to select ON, OFF, or CYCLE TIMES. Use the up/down arrow buttons to set duration or cycle count.

F/R: Press to adjust airflow direction: F (Forward Airflow) or R (Reverse Airflow).

Sound/Lock Button: Press to toggle buzzer sound. Press and hold for 3 seconds to enable/disable child lock.

Display Button (Sun Icon): Press to enter DISPLAY settings. Use the left/right arrow buttons to adjust brightness. Use the up/down arrow buttons to switch between °F/°C, CALIB, or F/R settings.

a. The remote may not have been paired successfully. Press and hold the ON button on the remote for 5 seconds until you hear a beep, indicating successful pairing.

b. The remote requires 2 AAA batteries (not included in the package). Please do not use rechargeable batteries.

c. Ensure that the plug is securely connected to the outlet. If the issue persists, try using a different power outlet. If the fan still does not turn on, please contact customer support for assistance.

We recommend the following tools for installation: pencil, ruler, tape measure, screwdriver, drill, drywall saw, and stud finder.

You can install the fan in any desired location, except for windows, fire-rated walls, or exterior walls, as exposure to rain could cause product damage.

a. Check if the LOW TEMP trigger is set higher than the HIGH TEMP trigger. If so, the fan will only work within that specific temperature range. Disabling either the HIGH TEMP or LOW TEMP will restore normal operation.

b. If the problem persists, please contact our customer support team for assistance.

Step 1. Disconnect the power supply before cleaning or servicing the fan.

Step 2. Unscrew the bolts and remove the front grilles and fan blades.

Step 3. Clean the grilles and blades with warm, soapy water and a soft cloth. Do not use abrasive cleaners, wire brushes, or steel wool.

Step 4. Wipe the exterior with a dry cloth or use a light vacuum to remove dust.