Knowledge Base

Installation Guide

CAUTION: Make sure power is switched off at service panel before starting installation.

SECTION 1 – Preparing the Fan

1. Unpack fan from the carton and confirm that all pieces are present. In addition to the fan you should have:

2 – Collar Assembly (attached)
2 – Mounting Brackets (attached)
1 – Instruction/Safety Sheet
1 – Insect Screen (attached)
1 – Controller (attached)

2. Choose the location for your fan. To ensure the best air and sound performance, it is recommended that the length of ducting and the number of elbows be kept to a minimum, the radius of each elbow be as large as possible for the installation, and that insulated hard ducting be used. This fan will require at least 12″ of clearance in the ceiling or wall. The fan mounts using the provided mounting brackets or can be surface mounted to a wall or ceiling.

NOTE: The fan must be installed into a location that can be easily accessed once installed.

3. No additional vibration deadening materials are needed for this fan.

SECTION 2 – Mounting the Fan

1. Confirm the fan is positioned so the air flow is in the correct direction.

2a. Surface Mounting: Locate at least one stud or joist. Place the fan in position so that the mounting bracket is centered on the stud or joist and make the location for the four (4) holes. Remove the fan and install properly rated wall/ceiling anchors for the holes that do not go directly into a joist or stud. Position fan in place and secure with screws (not included) (Figure 1).

2b. Mounting to a Joist: Install two – 2 x 4 headers (not included) between the joists. Position the fan housing on top of the headers and secure the mounting brackets with screws (not included) to the header (Figure 2).

2c. Hanging Bar Mounting: Lift unit up onto the threaded rods and secure in place using appropriate hardware (not included) (Figure 3).

SECTION 3 – Ducting

CAUTION: All ducting must comply with local and national building codes.

WARNING: make sure the fresh air intake port complies with all local and national codes and is located at least 6 feet away from sources of contamination such as but not limited to: dryer, furnace or central vacuum exhausts, gas appliances such as bbq grills, garbage bins or other exhaust ports.

NOTE: To ensure quiet operation of ENERGY STAR qualified in-line and remote fans, each fan shall be installed using sound attenuation techniques appropriate for the installation. For bathroom and general ventilation applications, at least 8 feet of insulated flexible duct shall be installed between the exhaust or supply grille(s) and the fan.

1. Connect the ducting to the fan’s duct collar (Figure 4). Seal ducting to housing with appropriately rated tape. Use screws or suitable clamps to secure in place. Make sure the fresh air intake is connected to a properly installed intake port that is a suitable weather hood with insect screen to protect air intake. It is recommended that low restriction termination fittings be used.

NOTE: At the base of the duct adapter, there is a small diameter test port hole covered with a plastic cap. Make sure the test port is not covered up with the ducting so that it can be accessed for pitot tube testing. To access the port, remove the port cover and insert tube.

SECTION 4 – Wiring

CAUTION: make sure power is switched off at service panel before starting installation.

CAUTION: all electrical connections must be made in accordance with local codes, ordinances, or national electrical code. if you are unfamiliar with methods of installing electrical wiring, secure the services of a qualified electrician.

NOTE: This unit includes a side access panel for wiring that does not require the removal of the fan’s blower assembly.

1. Remove the wire compartment cover screw and place cover in a secure place (Figure 5).

2. Pull the loose black, white and green wires out from the wire compartment (additional wires will be present). Install an approved electrical connector to the wire compartment cover (not included). Run a black (hot), white (neutral), and a green or bare ground wire from the supply through the electrical connector. Connect all wires from the supply to their corresponding wires within the wire compartment (Figure 6). Use approved methods for all connections.

3. Carefully tuck wires back inside wire compartment and replace wire compartment cover securing with the screw that was removed earlier.

SECTION 5 – Completing the Installation

NOTE: When fan is mounted inline and no penetration is made into unconditioned spaces, there is no need to use a sealant appropriate for contact with the building materials present and for the temperature requirements of the installation to prevent air leakage from unconditioned spaces. Additional material (backing rod, ceiling material) are also not required.

NOTE: No additional insulation needed to minimize building heat loss and gain.

NOTE: This unit is equipped with a wire mesh insect screen. Confirm that the screen is installed on the inside of the unit on the outlet ducting side.

1. If the screen is not in place, insert the screen into the tab at the base of the unit (make sure the wider side of the screen is running side to side inside the unit) (Figure 7).

2. Slide the screen to the side with the larger top tab making sure the screen fits behind the tab (Figure 7).

3. Slide the screen back over towards the smaller top tab making sure the screen fits behind the tab (Figure 8).

4. Confirm that the screen is being held in place by both top tabs (Figure 8).

5. Restore power and test your installation.

SECTION 6 – Preparing the Fan

1. Determine the CFM required. The unit can be set from 30 CFM to 130 CFM in increments of 10 CFM. Remove the screw securing the access panel cover in place and open the cover to gain access. Locate the speed control panel inside the unit (Figure 9).

2. For setting of 30 CFM to 60 CFM: Place the rocker switch in the “Low” position and the first dial in the “Lower” position then set the second dial to the required CFM (Figure 10).

3. For settings of 70 CFM to 90 CFM: Place the rocker switch in the “Low” position and set the first dial to the required CFM (Figure 10).

4. For settings of 100 CFM to 130 CFM: Place the rocker switch in the “High” position and set the top dial to the required CFM (Figure 10).

SECTION 7 – Optional Air Filter

An air filter (available separately) can be added to this unit to provide additional filtration of the intake air. The unit will accept a 10” x 10” x 2” filter. To install:

NOTE: Adding an air filter will decrease the airflow of the unit. You will need to increase the CFM selected in SECTION 6 to account for the decreased air flow. Filters must be changed regularly. Refer to the filter manufacturer’s recommendations to determine how often the filter should be changed.

1. Remove the screw securing the access panel cover in place and open the cover to gain access to the controls and filter area.

2. Ensure the filter is facing the correct way and slide the filter into the slot in the housing. Make sure the filter is seated all the way to the bottom of the housing (Figure 11).

3. Close the access panel and reinstall the screw holding the access panel in place.

SECTION 8 – Setting the Controller

The unit mounted controller monitors temperature and humidity of incoming air and allows the installer to configure optimal ventilation.

With power to the unit turned on, the initial screen will show “OFF”. Press the “ON” button to show the current temperature and humidity condition. By pressing the “ON” button, the unit will turn on for continuous air flow using the CFM settings from SECTION 6 Setting the Speed.

Energy Saving Mode

NOTE: This unit is equipped with an Energy Saving Mode that allows you to configure upper and lower limits for temperature and humidity. By setting these limits, you will help prevent extreme temperature or humidity changes from entering into the living space.

1. If you have not already pressed the “ON” button in step one of this section, do so now. Press the “CONFIGURE” button once and the display will show a “C” and “Temp Unit” on the right hand side.

2. Press the up or down button to display the temperature in Fahrenheit or Celsius.

3. Press the “CONFIGURE” button again to set the upper limit temperature. This is the temperature that when the outside air coming into the home exceeds, the fan will stop and enter sampling mode. You will see “Upper Limit” and “Temperature” on the right hand side. Use the “UP” and “DOWN” buttons to adjust the temperature.

4. Press the “CONFIGURE” button again to set the upper limit humidity level. This is the humidity level that when the outside air coming into the home exceeds, the fan will stop and enter sampling mode. You will see “Upper Limit” and “Humidity” on the right hand side. Use the “UP” and “DOWN” buttons to adjust the temperature.

5. Press the “CONFIGURE” button again to set the lower temperature level. This is the temperature that when the outside air coming into the home falls below, the fan will stop and enter sampling mode. You will see “Lower Limit” and “Temperature” on the right hand side. Use the “UP” and “DOWN” buttons to adjust the temperature.

6. Press the “CONFIGURE” button again to set the lower limit humidity level. This is the humidity level that when the outside air coming into the home falls below, the fan will stop and enter sampling mode. You will see “Lower Limit” and “Humidity” on the right hand side. Use the “UP” and “DOWN” buttons to adjust the temperature. Setting this to 0 or “LO” will override the humidity set level. This may be necessary in very low humidity areas of the country.

7. Press the “CONFIGURE” button until it returns to the main screen. You will see “ON” in the top left corner of the display. At this point, the information has been stored.

SECTION 9 – Using the Controller

1. Energy Savings Mode: To enter the Energy Savings mode, press the “ON/OFF/ENERGY SAVINGS” Button until “Energy Savings” appears on the left side of the display. Energy Savings mode engages the settings configured in SECTION 8 Energy Saving Mode.

2. When the unit is on, the display will show the current conditions (temperature and humidity level) as well as if it is in Energy Savings mode or not. Other icons/information that may be on the display include:

Fan icon appears when the fan is on.
“HI°F” appears if the intake temperature is above 150°F.
“Lo°F” appears if the intake temperature is below 15°F.
“Lo%” appears if the intake humidity is below 10%.

3. Optional Heater Unit: An optional heater unit is available for climates that the air coming into the unit falls below 54°F. To install the unit, follow the direction that are included with that unit. The display will show a thermometer icon with either a “1” or “1 2” when the temperature range is at a level where the heating element would come on if present. Stage 1 – “1” turns on when the intake air temperature is between 39°F and 54°F. Stage 1 and 2 “1 2” turn on when the intake air temperature is between 33°F and 39°F.

4. To restore the factory setting, make sure the unit is in the “OFF” setting. Hold both the “UP” and “DOWN” buttons for approximately 5 seconds. The “OFF” on the display will flash to confirm the settings have been restored.

SECTION 10 – Use and Care

CAUTION: make sure power is switched off at service panel before servicing the unit.

1. Cleaning the Fan Assembly: Wipe all parts with a dry cloth or gently vacuum the fan. NEVER IMMERSE ELECTRICAL PARTS IN WATER.

2. Cleaning the Insect Filter: Included with your unit is an aluminum insect filter that should be checked each month. If the filter is dirty, wash in hot water with a mild detergent. Reverse the instructions in the SECTION 5 of these instructions to remove filter. If the filter becomes damaged, replace with Air King Model FBS-01 Insect Filter.

NOTE: If you notice a large amount of insects and debris in the insect filter, this could be a sign that the intake weather hood (roof cap or wall cap) might be compromised and need repair or replacing.

3. Optional Air Filter: If an optional air filter is installed, it should be checked every month and replaced at least once every 3 months. Reverse the instructions in the SECTION 7 of these instructions to remove filter.