BROAN B230H75RS (01) PDF Document

To reduce the risk of fire, electric shock, or injury to persons when using your BROAN B230H75RS, observe the following:

1. Use this unit only in the manner intended by the manufacturer.

2. Before servicing or cleaning this unit, disconnect the power cord from the electrical outlet.

3. This unit is not designed to provide combustion and/or dilution air for fuel-burning appliances.

4. When cutting or drilling into a wall or ceiling, do not damage electrical wiring and other hidden utilities.

5. Do not use this unit with any solid-state speed control device other than those specified in the manual.

6. This unit must be grounded. The power supply cord has a 3-prong grounding plug for your personal safety. It must be plugged into a mating 3-prong grounding receptacle, grounded in accordance with the national electrical code and local codes and ordinances. Do not remove the ground prong. Do not use an extension cord.

7. Do not install in a cooking area or connect directly to any appliances.

8. Do not use to exhaust hazardous or explosive materials and vapors.

9. When performing installation, servicing or cleaning this unit, it is recommended to wear safety glasses and gloves.

10. If applicable local regulations have more restrictive installation and/or certification requirements, those requirements prevail over this document, and the installer must conform to them at their own expense.

1. To avoid prematurely clogged filters, turn the BROAN B230H75RS unit OFF during construction or renovation.

2. Please read the specification label on the product for further information and requirements.

3. Be sure to duct air outside. Do not intake/exhaust air into spaces within walls or ceilings or into attics, crawl spaces, or garages. Do not attempt to recover exhaust air from a dryer or a range hood.

4. This unit is intended for residential installation only.

5. Do not run any air ducts directly above or within 2 ft. of a furnace or its supply plenum, boiler, or other heat-producing appliance. If a duct must be connected to the furnace return plenum, it must be connected 10 ft. away from the plenum connection to the furnace.

6. The ductwork is intended to be installed in compliance with all applicable local and national codes.

7. When leaving the house for a long period (more than two weeks), a responsible person should regularly check if the unit operates adequately.

8. If the ductwork passes through an unconditioned space (e.g., attic), the unit must operate continuously except when performing maintenance and/or repair. The ambient temperature of the house should never drop below 65°F (18°C).

9. At least once a year, the unit’s mechanical and electronic parts should be inspected by qualified service personnel.

10. Do not use your unit during construction or renovation of your house or when sanding drywall. Certain types of dust and vapors may damage your system.

11. Make sure at all times that the outside intake and exhaust hoods are free from any snow during the winter season. It is important to check your unit during a big snowstorm so it doesn’t draw in any snow. If this is the case, please turn the unit OFF for a few hours.

12. Since the electronic control system uses a microprocessor, it may not operate correctly because of external noise or very short power failure. If this happens, unplug the unit and wait approximately 10 seconds, then plug the unit in again.

13. Do not make excessive use of fragrance appliances or chemicals as some may damage the unit components’ material.

Choose an appropriate location for the unit:

• Within an area of the house where the ambient temperature is kept between 50°F and 149°F;

• Away from living areas (dining room, living room, bedroom), if possible;

• So as to provide easy access to the interior cabinet for maintenance, and to the control panel on the side of the unit;

• Close to an exterior wall, so as to limit the length of the insulated flexible ducts to and from the unit;

• For HRV units only: close to a drain. If no drain is close by, use a pail to collect run-off;

• Away from hot chimneys, electrical panel, and other fire hazards;

• Within 6 feet of a power source (standard outlet).

Suspended to the joists or trusts:

• Slightly bend the brackets on the unit to insert the provided chains.

• Hang the unit to the joists (or trusts) using the chains. Springs are not required.

• Always make sure that the unit is no more than 1/4″ off level.

Wall mounted:

• Choose the appropriate location(s) for the mounting brackets according to stud(s) position.

• Insert the provided brackets under the unit frame.

• Fix the bracket using the screw no. 8 x 3/8″.

• Using the 4 no. 8 x 1 1/2″ screws provided, secure the unit to the wall making sure that the 4 screws engage into a stud.

• Always make sure that the unit is no more than 1/4″ off level.

NOTE: Keep 3″ clearance on the electrical box side for cooling and servicing.

Fully Ducted System (T-1 Installation):

STALE AIR FROM BUILDING:

• Install registers in areas where contaminants and humidity are produced: kitchen, bathrooms, laundry room, etc.

• Install registers on an interior wall, 6 to 12 inches away from the ceiling OR in the ceiling.

• Install the kitchen register at least 4 feet away from the range.

• Bathroom fans and range hoods can be used to better exhaust stale air.

• Homes with more than one level require at least one exhaust register at the highest level.

FRESH AIR TO BUILDING:

• Install registers in bedrooms, dining room, living room, and basement.

• Install registers in the ceiling OR high on the walls with the airflow directed towards the ceiling.

• If a register must be installed in the floor, direct the airflow up the wall.

NOTE: For this type of configuration, the T-1 option must be selected on the LCD screen when auto-balancing the unit.

Exhaust Ducted System (T-2 Installation):

STALE AIR FROM BUILDING: Same as for Fully Ducted System.

FRESH AIR TO BUILDING: Connect the fresh air distribution duct of the unit to the central forced-air system return duct at least 10 feet away from the central forced-air system. This 10-ft. distance applies only in areas where the outside temperature falls below the freezing point (32°F).

NOTE: For this type of configuration, the T-2 option must be selected on the LCD screen when auto-balancing the unit.

Simplified Installation (T-4):

STALE AIR FROM BUILDING: Connect the stale air intake port of the unit to the central forced-air system return duct at least 3 feet ahead of the fresh air distribution from the unit.

FRESH AIR TO BUILDING: Connect the fresh air distribution duct of the unit to the central forced-air system return duct at least 10 feet away from the central forced-air system. This 10-ft. distance applies only in areas where the outside temperature falls below the freezing point (32°F).

NOTE: For this type of configuration, the T-4 option must be selected on the LCD screen when auto-balancing the unit.

• Cut the appropriate length of drain tubing.

• Connect the tubing to the provided adaptor.

• Make a water trap loop in the tube to prevent the unit from drawing unpleasant odors from the drain source.

• Add water in the loop to prevent noise or hiss.

• Make sure there is a distance of at least 2″ between the unit and the tubing loop.

• Using tie wraps provided, attach the tubing as illustrated.

• Run the tube to the floor drain or to an alternate drain pipe or pail.

• IMPORTANT: If using a pail to collect water, place the tube end approximately 1″ inside the pail in order to prevent water from being drawn back up into the unit.

Make sure the intake hood is located at least 10 feet away from any of the following:

• Dryer exhaust, central vacuum vent

• Gas meter exhaust, gas barbecue-grill

• Any exhaust vents or chimney from a combustion source

• Garbage bin and any other source of contamination such as parking lots, streets

For multifamily buildings only, make sure the exhaust hood is located at least 3 feet away from any of the following:

• Property lines

• Operable openings into buildings (door, window)

Additional Guidelines:

• Intake and exhaust hood(s) shall be protected with corrosion-resistant screens, louvers, or grilles having openings not less than 1/4 inch and not larger than 1/2 inch.

• Install hood(s) at least 18 inches away from the ground OR depth of expected snow accumulation, whichever is greater.

• To minimize cross-contamination for single detached, attached homes, and townhouses: Maintain a 6 feet minimum separation distance between outdoor air intake and exhaust hoods OR use an approved factory-built intake/exhaust combination termination fitting.

• To minimize cross-contamination for multifamily buildings: Maintain a 10 feet minimum separation distance between outdoor air intake and exhaust hoods OR use an approved factory-built intake/exhaust combination termination fitting.

1. Expose the flexible duct by pulling back the insulation, and place it over the inner port ring.

2. Attach the flexible duct to the port using a tie wrap.

3. Seal the joint using duct tape.

4. Pull the insulation and vapor barrier over the joint, tuck them between the inner and outer rings of the double collar and fasten them in place using duct tape.

CAUTION: The vapor barrier should remain intact and free of cracks or openings. An opening could produce condensation inside or outside the duct, which could cause material damage and/or mold growth in the long run.

IMPORTANT: Make sure to connect ducting as illustrated for airflow reading accuracy. Ducting must not be too crushed, and insulated ducts must have the same diameter as the ports. Route ducts as straight as possible and minimize the number of elbows.

PREPARATION

Follow these steps to ensure accurate measurements:

• Seal all the ductwork with tape. Close all windows and doors.

• Turn off all exhaust devices such as a range hood, dryer, and bathroom fans.

• If the installation is in any way connected to a ductwork of a central forced-air system, make sure that the central forced-air system blower is ON. If not, leave the central forced-air system blower OFF.

AUTO-BALANCING PROCEDURE

• Plug the unit and wait for the maximum CFM to display on the LCD screen. If the unit is colder than ambient temperature, it is normal to experience a 60s longer boot-up since motors have to preheat. Refer to section 8.1 if errors E22 or E32 display.

• The maximum CFM will display on the LCD screen. Use (+/-) to adjust the CFM and OK to confirm.

• The minimum CFM will display on the LCD screen. Use (+/-) to adjust the CFM and OK to confirm.

• The house icon that flashes on the LCD screen indicates which side currently limits the airflow (supply or exhaust). If the airflow reached is not sufficient, the installer can improve the installation to increase airflow.

INSTALLATION CONFIGURATION SELECTION

• INS will display on the LCD screen. Choose among T-1, T-2, T-3, T-4, or T-5 following the installation configuration.

• Auto-balancing is completed.

Procedure to Modify MIN CFM Setting

• Go to MIN using (+/-) then press on the OK button for 4 seconds.

• Use (+/-) to increase/decrease CFM and OK to confirm.

Procedure to Modify MAX CFM Setting

• Go to MAX using (+/-) then press on the OK button for 4 seconds.

• Use (+/-) to increase/decrease CFM and OK to confirm.

Procedure to Modify Options Setting

• Go to CFG OPT using (+/-) then press on the OK button for 4 seconds.

Procedure to Modify Independent Airflows Setting

• Press simultaneously (+/-) buttons for 4 seconds.

• The supply airflow value will flash. Press on + button or – button to increase/decrease the value. Press OK button.

• The exhaust airflow value will flash. Press on + button or – button to increase/decrease the value. Press OK button.

• When MAX displays, press the + button to exit independent airflows setting.

If any change is made to the ducting, reset settings to restart the airflow test.

Procedure to Reset Settings:

Press on the OK and (-) buttons simultaneously for 4 seconds. Use (+/-) to select Yes or No and OK to confirm. Then perform the auto-balancing procedure.

1. To change the mode, use (+/-) to access the Mode screen. Press OK to edit the mode and use (+/-) to change the mode (Standby, Min, Max).

2. Press OK to confirm selection. The airflows will be displayed for both MIN and MAX modes.

NOTE: If an optional auxiliary wall control or the central forced-air system thermostat equipped with external fan activation is used, it overrides the integrated control.

1. Disconnect the power cord.

2. Open the door of the unit, which is hinged and maintained closed by 2 latches.

3. Clean the inside of the door with a damp cloth.

4. Clean filters:

• Remove filters.

• Vacuum to remove most of the dust.

• Wash with a mixture of warm water and mild soap. You may add bleach if you wish to disinfect (one tablespoon per gallon). Rinse thoroughly. Shake filters to remove excess water and let dry.

5. Remove the core.

6. Clean the condensing tray with a damp cloth.

7. Check the exterior air intake hood to ensure there are no leaves, twigs, ice, or snow that could be drawn into the vent. Clean if necessary.

8. Rotate the blower wheels by hand. If one of the wheels does not rotate easily, contact your installer.

9. Reassemble the components. Pay special attention to the filters by making sure that they are engaged in their slots.

10. Close the unit door and reconnect the power supply.

11. Reset filters, if required, by following the instructions for your specific wall control.

1. Repeat steps 1 to 6 from the quarterly maintenance section.

2. Clean the recovery core:

• HRV MODELS: Remove the core. Let it soak in a mixture of cold or lukewarm water and mild soap (dishwashing liquid). Rinse thoroughly. Shake the core to remove excess water and let it dry.

• ERV MODELS: Remove the dust on the core using a vacuum cleaner and a soft brush attachment. CAUTION: DO NOT SOAK THE ENERGY RECOVERY CORE IN WATER.

3. Clean the blower assemblies. Do not disassemble the blower assemblies.

4. Remove the dust using a vacuum cleaner with a soft brush attachment.

5. Reassemble the components.

6. Reconnect the power supply.