BROAN B210E75RT (01) PDF Document

To reduce the risk of fire, electric shock, or injury to persons when using your BROAN B210E75RT, 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. When applicable local regulation comprises more restrictive installation and/or certification requirements, the aforementioned requirements prevail on those of this document and the installer agrees to conform to these at his own expense.

Please observe the following cautions when using your BROAN B210E75RT:

1. To avoid prematurely clogged filters, turn the 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 garage. Do not attempt to recover the exhaust air from a dryer or a range hood.

4. The 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 has to 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 of time (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. Also, 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 of the unit 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 since some may damage the unit components material.

The BROAN B210E75RT is a balanced ventilation system. During normal operation, it pulls fresh air from outdoors into the building. Simultaneously, it exhausts stale air from the building to the outdoors. The system is designed to recover heat or energy from the outgoing air to temper the incoming fresh air.

Choose an appropriate location for your BROAN B210E75RT:

• 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.

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

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

To suspend your BROAN B210E75RT from joists or trusses:

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

2. Hang the unit to the joists (or trusses) using the chains. Springs are not required.

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

To wall-mount your BROAN B210E75RT:

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

2. Insert the provided brackets under the unit frame.

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

4. Using the 4 no. 8 x 1½” screws provided, secure the unit to the wall, making sure that the 4 screws engage into a stud.

5. 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.

Use the following procedure to connect the insulated flexible ducts to the exhaust and fresh air ports of the BROAN B210E75RT:

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.

For correct installation and accurate airflow readings, ensure the ducting has a minimum bend radius of 3 inches (R = 3″ minimum). Incorrect installation, such as crushed or sharply bent ducts, will affect airflow reading accuracy. Insulated ducts must have the same diameter as the ports to ensure proper drainage of any water that may accumulate.

Route ducts as straight as possible and minimize the number of elbows.

Use the buttons on the integrated control to navigate the LCD screen:

• **OK button:** To confirm a selection.

• **+ button:** To increase a value or scroll up in a selection.

• **- button:** To decrease a value or scroll down in a selection.

To change the operating mode, press the OK button. Use the + or – buttons to select the desired mode (e.g., MIN, MAX), then press OK to confirm.

To modify settings like MAX CFM, MIN CFM, or other options, press the + or – button to navigate to the desired setting, then press and hold the OK button for 4 seconds to enter modification mode.

DISPLAY	DEFINITION	DISPLAY	DEFINITION
STB	Standby mode	OVR 60	Override 60 min
MED	MED speed	OVR CNT	Override by dry contact
INT	Intermittent mode	AHU	Refer to section 6.3 for explanation
REC	Recirculation mode (Min, Med or Max speed)	HUM	Humidistat or Dehumidistat override
AUT	AUTO mode	TUR	Turbo mode
SMT	SMART mode	OTH	Away mode or Scheduling mode
OVR 20	Override 20 min	DEF	Defrost mode
OVR 40	Override 40 min	EXX or WXX (XX referring to error or warning number)	Refer to section 8 for each error/warning explanation

PREPARATION

Follow these steps to ensure accurate measurements:

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

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

3. 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 central forced-air system blower OFF.

AUTO-BALANCING PROCEDURE

1. 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.

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

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

4. 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

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

2. Auto-balancing is completed.

PROCEDURE TO MODIFY MIN CFM SETTING

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

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

PROCEDURE TO MODIFY MAX CFM SETTING

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

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

PROCEDURE TO MODIFY OPTIONS SETTING

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

PROCEDURE TO MODIFY INDEPENDENT AIRFLOWS SETTING

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

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

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

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

Options	Configurations available
DEF (Defrost)	DIS* (Discretion – defrost without speed variation for more comfort), PLU (Plus – extended defrost for colder areas)
INS (Installation)	T-1, T-2, T-3, T-4*, T-5
DRY (Dry contact)	MIN* (Minimum), INT (Intermittent), AUT (AUTO), MAX (Maximum)
OVR (Override)	BAL* (Balanced), PER (Performance), DIS (Discretion)
INT (Intermittent)	STB* (Standby – 20 min in MIN speed and 40 min in standby mode), REC** (Recirculation – 20 min in MIN speed and 40 min in recirculation mode) ** REC (Recirculation) configuration is not available for T-4 and T-5 installation configurations.

* Factory setting

NOTE: If no selection is confirmed within 10 minutes, the unit will exit the menu without saving any changes.

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

To reset the 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.

For supply (E01, E02, E03), exhaust (E05, E06, E07), or recirculation (E09, E10, E11) damper errors:

STEP 1: Unplug the unit, inspect the damper system, remove any undesirable obstacle or dirt (filters and core may have to be removed to access the damper system). Plug the unit.

STEP 2: If STEP 1 did not fix the problem, open the electrical compartment and check the respective connector (J5 for supply, J7 for exhaust, J6 for recirculation) to ensure it is well inserted and check for any loose wires.

STEP 3: If STEP 2 did not fix the problem and the damper is not moving at all, you can test by swapping connectors on the electronic assembly. For example, for a supply damper issue, unplug the exhaust damper (J7) and plug the supply damper connector (J5) into the J7 port. If the supply damper now moves, the electronic assembly must be replaced. Otherwise, replace the damper system.

For a supply airflow error (E22) or exhaust airflow error (E32):

STEP 1: Unplug the unit. Perform a visual inspection of the respective damper system. Clean filters, distribution registers, and the outside supply/exhaust hood. Inspect ducting to ensure it is not squeezed or bent. Plug the unit.

STEP 2: If the problem persists, remove the ducting of the affected path. On the LCD screen, select MAX to check if the unit is able to reach the selected flow. If so, review the ducting path.

STEP 3: On the LCD screen, select the MIN and MAX flow setting values then reset the unit. The MAX flow value will display on the LCD screen. If the MAX flow is above the desired MAX flow, set the MAX and MIN flows accordingly.

STEP 4: If the problem is still not fixed, replace the corresponding blower (supply or exhaust) and repeat STEP 3.

STEP 5: If STEP 4 did not fix the problem, replace the electronic assembly.

For supply motor errors (E23-E29) or exhaust motor errors (E33-E39):

• Over/Under Voltage (E24, E25, E34, E35): Unplug/plug the unit. This may be detected with severe in-house power supply fluctuation. If the problem persists, replace the electronic assembly.

• Over Current / FOC Duration (E23, E27, E33, E37): Unplug/plug the unit. If that doesn’t work, remove the core and clear the ventilation wheel from any dirt or obstacles.

• Speed Feedback / Startup (E28, E29, E38, E39): Disconnect the appropriate motor connector (J2 for supply, J3 for exhaust) and connect a spare blower system. If it works, replace the original blower. If not, replace the electronic assembly.

• Over Temp (E26, E36): Validate if the air exchanger is exposed to ambient temperatures within the operating limits. If it is, replace the electronic assembly.

• Outside Air or Distribution Air Thermistor (E40, E41): Check if the thermistor is well connected (J7A for outside, J7B for distribution). If it is, disconnect it and check if the resistance is within 5 kOhms to 120 kOhms. If outside the range, replace the thermistor. If within range, replace the electronic assembly.

• PCBA Thermistor Fault (E42): Replace the electronic assembly.

• PCBA Temperature Over Limit (E43): Validate if the unit is exposed to ambient temperatures within the operating limits. If it is, replace the electronic assembly.

For wall control communication lost (E50) or wall control sensor error (E51):

STEP 1: Unplug unit, inspect wires, plug unit.

STEP 2: (For E50) If the problem persists, remove the wall control from the wall installation and test with a short cable. If it works, bring a new cable to the wall installation location.

STEP 3: (For E50) Test the air exchanger with a spare wall control. If it works, replace the wall control.

STEP 4: If the problem is still not resolved, replace the electronic assembly. For E51, if step 1 doesn’t work, replace the wall control.

1. Disconnect the power cord.

2. Open the unit door, which is hinged and held by 2 latches.

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

4. Clean filters: Remove them, vacuum to remove most of the dust, then wash with a mixture of warm water and mild soap. Rinse thoroughly, shake 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 for leaves, twigs, ice, or snow and 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, ensuring filters 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: The BROAN B210E75RT is an ERV model. 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 power supply.

If the unit does not work properly, reset it by unplugging it for one minute, then replugging it. If the issue persists, try the following:

• Nothing works: See if the unit is plugged in. See if the unit is receiving power from the house circuit breaker or fuse.

• Noisy unit: Clean the unit (see maintenance section). If the problem is not solved, contact your installer.

• Condensation inside windows (cold weather): Operate the unit at MAX speed during activities generating excess humidity. Leave curtains half-open to allow air circulation. Store firewood in a closed or well-ventilated room. Keep the temperature in your house above 64°F.

• Humidity inside (hot/humid weather): Operate the unit in MIN speed. Temporarily switch to INT mode (if available). Use a dehumidifier.

• Air too dry: Operate the unit at MIN speed. Temporarily switch to INT mode (if available). Temporarily use a humidifier.

• Air too cold at the air supply register: Make sure the outdoor hoods are not blocked. Operate the unit at MIN speed. Consider installing a duct heater (contact your installer).