USER AND INSTALLER MANUAL
RESIDENTIAL USE ONLY
1112312WEB rEv. A
REGISTER YOUR PRODUCT ONLINE AT:
Broan-NuTone.com/en-us/product-registration-form
FAULT INDICATOR DISPLAY REQUIREMENTS
Broan-NuTone LLC, 926 West State Street, Hartford, Wisconsin, USA 53027 Broan-NuTone.com 800-558-1711
Venmar Ventilation ULC, 550 Lemire Blvd., Drummondville, Québec, Canada J2C 7W9 Broan-NuTone.ca 800-567-3855
BLP150E75NS-HW
BLP150E75NS-PC
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2
Please take note that this manual uses the following symbols to emphasize particular information:
Identifies an instruction which, if not followed, might cause serious personal injuries including possibility of death.
CAUTION
Denotes an instruction which, if not followed, may severely damage the unit and/or its components.
NOTE: Indicates supplementary information needed to fully complete an instruction.
LIMITATION
For residential (domestic) installation only. Installation work and electrical wiring must be done by a qualified person in accordance with
all applicable codes and standards, including fire-rated construction codes and standards.
⚠ WARNING
TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSON(S) OBSERVE THE FOLLOWING:
1. Use this unit only in the manner intended by the manufacturer.
2. Before servicing or cleaning this unit, disconnect power cord from electrical outlet or switch power off at service panel and lock the
service disconnecting means to prevent power from being switched on accidentally. When the service disconnecting means cannot
be locked, securely fasten a prominent warning device, such as a tag, to the service panel.
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.
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.
11. Do not screw the brackets, or any other hardware, into any other location but the mount locations designated by the manufacturer.
12. Make sure to secure mounting brackets in a sound structure.
CAUTION
1. To avoid prematurely clogged filters, turn the unit OFF during construction or renovation.
2. Please read specification label on product for further information and requirements.
3. Be sure to duct air outside – Do not intake/exhaust air into spaces within walls or ceiling or into attics, crawl spaces, or garage. Do
not attempt to recover the exhaust air from a dryer or a range hood.
4. Intended for residential installation only in accordance with the requirements of NFPA 90B (for a unit installed in U.S.A.) or Part 9 of
the National Building Code of Canada (for a unit installed in Canada).
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 plenum connection to the furnace.
This 10-ft. distance applies only in areas where the outside temperature falls below the freezing point (32°F/0°C).
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 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 snow storm, 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.
WARNING
!
3
TABLE OF CONTENTS
1. TECHNICAL DATA ...............................................................................................................4
1.1 AIR DISTRIBUTION (NORMAL OPERATION) .............................................................................................4
2. INSTALLATION ....................................................................................................................4
2.1 LOCATING AND MOUNTING THE UNIT .....................................................................................................4
2.2 INSTALLING THE DUCTWORK AND THE REGISTERS ............................................................................. 6
2.2.1 Fully DucteD SyStem (t-1) .......................................................................................................................6
2.2.2 exhauSt DucteD SyStem (t-2) ..................................................................................................................6
2.2.3 SimpliFieD inStallation (t-4) ......................................................................................................................7
2.3 EXTERIOR HOODS INSTALLATION / LOCATION ......................................................................................8
2.4 INSTALLING A TANDEM
®
TRANSITION* KIT (OPTIONAL) .........................................................................9
2.5 CONNECTING THE DUCTS TO THE UNIT ................................................................................................. 9
2.5.1 DuctS connection .................................................................................................................................10
3. CONNECTIONS ................................................................................................................. 11
3.1 ELECTRICAL CONNECTION TO OPTIONAL MAIN WALL CONTROL .................................................... 11
3.1.1 electrical connection to SpeeD, DehumiDiStat or automatic optional main Wall control ..................... 11
3.1.2 electrical connection to aDvanceD optional main Wall control .......................................................... 11
3.2 ELECTRICAL CONNECTION TO OPTIONAL AUXILIARY WALL CONTROL ...........................................12
3.2.1 electrical connection to 20-40-60 optional auxiliary Wall control ...................................................12
3.2.2 electrical connection to Dry contact optional auxiliary Wall control (e.g. crank timer) .................12
3.3 CONNECTION TO THE CENTRAL FORCED-AIR SYSTEM ..................................................................... 12
3.3.1 unit operation uSing a Dry contact connection...................................................................................12
3.3.2 unit interconnection With central ForceD-air SyStem (r/c/g/gF) .......................................................13
3.3.3 Synchronization With central ForceD-air SyStem Function ...................................................................13
3.4 ELECTRICAL CONNECTION (MODEL -HW ONLY)..................................................................................13
3.5 ELECTRICAL CONNECTION (MODEL -PC ONLY)...................................................................................13
4. WIRING DIAGRAM ............................................................................................................14
5. NAVIGATION ON LCD SCREEN ....................................................................................... 15
5.1 LCD SCREEN ............................................................................................................................................16
5.2 UNIT FIRST BOOT .....................................................................................................................................16
5.3 HIGHER ELEVATION APPLICATIONS.......................................................................................................16
5.4 SETTINGS MODIFICATION .......................................................................................................................17
5.4.1 proceDure to moDiFy min cFm Setting ....................................................................................................17
5.4.2 proceDure to moDiFy max cFm Setting ...................................................................................................17
5.4.3 proceDure to moDiFy optionS Setting...................................................................................................17
5.4.4 proceDure to moDiFy inDepenDent airFloWS Setting ..............................................................................17
5.5 FACTORY SETTINGS RESET ................................................................................................................... 18
6. USING THIS UNIT ..............................................................................................................18
6.1 YOUR VENTILATION SYSTEM ..................................................................................................................18
6.2 INTEGRATED CONTROL ..........................................................................................................................18
6.3 AHU MODE DISPLAY ................................................................................................................................18
6.4 MODE DISPLAY .................................................................................................................................... 18
7. SERVICE PARTS ................................................................................................................ 19
8. INSTALLER’S TROUBLESHOOTING ...............................................................................20
9. MAINTENANCE .................................................................................................................23
9.1 QUARTERLY ..............................................................................................................................................23
9.2 ANNUAL (AT FALL) ....................................................................................................................................24
10. USER’S TROUBLESHOOTING .......................................................................................24
11. WARRANTY ......................................................................................................................25
4
1. TECHNICAL DATA
1.1 Air Distribution (normAl operAtion)
NOTE: The dimensions, performance charts and specifications are listed on the specification sheets of the unit.
Visit our website at Broan-NuTone.com.
2. INSTALLATION
2.1 locAting AnD mounting the unit
The wearing of safety glasses and gloves is recommended when installing, maintaining or cleaning the unit to reduce the risk of injury
that could be caused by the presence of thin metal and/or high moving parts.
WARNING
!
Choose an appropriate location for the unit:
• Within an area of the house where the ambient temperature is kept between 50°F and 160°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 bottom 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 3 feet of a power source (standard outlet) for -PC model.
Consumer Information
A. To ensure quiet operation of the ERV, each product model must be installed using sound attenuation techniques appropriate for the
installation.
B. The way your energy-recovery ventilator is installed can make a significant difference to the electrical energy you use. To minimize
the electricity use of the energy-recovery ventilator, a stand-alone fully ducted installation is recommended. If you choose a simplified
installation that operates your furnace air handler for room-to-room ventilation, an electrically efficient furnace that has an electronically
commutated (EC) variable speed blower motor will minimize your electrical energy consumption and operating cost.
C. Installation of a user-accessible control with your product model will improve comfort and may significantly reduce the product
model’s energy use.
CAUTION
Make sure that no piece of mineral wool will enter in the unit during installation. Otherwise, this could reduce airflow and generate
vibrations and noise in the unit.
VF0083
2
3
4
1
4
1
2
3
EXTERIOR
EXTÉRIEUR
EXTERIOR
1 - Fresh air from outside
2 - Fresh air to building
3 - Exhaust air from building
4 - Exhaust air to outside
Selector must point in exterior ducts direction.
CLIMATE ZONE AND PRE-HEATING
BLP150E75NS models are recommended for installation within Climate Zones 0 to 5 as per ASHRAE 169-2021 definition. Installation of
an inline heater is mandatory for Climate Zones 6 and above.
When installing the inline heater, consider the following:
• Set the heater to condition the outdoor air to 32°F (0°C) prior to be delivered to the ERV.
• The minimum distance between the inline heater and the BLP150E75NS should be 12".
5
4 X
VD0550
Ceiling Installation:
OR
2.1 locAting AnD mounting the unit (cont.)
VD0549
2 X
VD0551
4 X
4 X
Wall Installation:
VD0548
4 X
NOTE: Make sure the electrical box is installed upward.
OR
Flat Installation:
VD0552
2 X
4 X
NOTE: To prevent vibration transmission, do not
overtighten or deform dampening washer.
IMPORTANT: Fully insert the brackets in the unit to align both holes (not the slot). Use short screws provided
to secure it.
VD0560
6
VH0192
A
B
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.
2.2.1 fully ductEd SyStEm (t-1)
2.2 instAlling the Ductwork AnD the registers
Never install a stale air exhaust register in a room where there is a combustion device, such as a furnace, gas water heater, fireplace or
any appliance or equipment that can generate gaseous contaminants, or pollutants. The negative pressure this could create in the room
may impair proper evacuation of the gas or pollutants, which may have severe health consequences.
WARNING
!
VH0191
StalE air from Building:
Same as for Fully Ducted System, described on point 2.2.1.
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 (A+B)*.
* This 10-ft. distance applies only in areas where the outside temperature
falls below the freezing point (32°F).
NOTE: The central forced-air system blower operation can be synchronized
with the unit (see section 3.3). It is recommended, but not essential that the
central forced-air system blower runs when the unit is in operation.
2.2.2 ExhauSt ductEd SyStEm (t-2)
Duct connection to the central forced-air system can be regulated by some codes and standards. It is your responsibility to consider and
comply with your local requirements to avoid any non-compliance.
WARNING
!
NOTE: For this type of configuration, the T-1 option must be selected on the LCD screen when auto-balancing the unit (see section 5.2).
NOTE: For this type of configuration, the T-2 option must be selected
on the LCD screen when auto-balancing the unit (see section 5.2).
a+B= min 10’
If ducts have to go through an unconditioned space (e.g.: attic), always use insulated ducts to prevent condensation formation inside
and outside ducts, which could cause material damage and/or mold growth. Moreover, if fresh air to building duct and/or stale air
from building duct goes/go through an unconditioned space, the unit must be set to operate continuously in cold conditions (below
10°C/50°F). Continuous air movement inside ducts will prevent condensation formation. The unit can be stopped temporarily for
maintenance and/or repair purposes in such conditions.
CAUTION
7
2.2.3 SimplifiEd inStallation (t-4)
The central forced-air system must be synchronized with the unit since fresh air evacuation and distribution come from the same section.
The central forced-air system must operate to avoid fresh air to be directly drawn by the evacuation, which would reduce significantly
fresh air supply to the building. See section 3.3 for ducting.
CAUTION
Duct connection to the central forced-air system can be regulated by some codes and standards. It is your responsibility to consider and
comply with your local requirements to avoid any non-compliance.
WARNING
!
VH0195
Fresh air and exhaust air flow through the central forced-air system ducts,
which simplifies the installation.
The use of bathroom fans and a range hood is suggested to exhaust stale
air.
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 (A+B)*.
* This 10-ft. distance applies only in areas where the outside temperature
falls below the freezing point (32°F).
VH0194
C
B
A
a+B= min 10’
c= min 3’
altErnatE inStallation (t-5)
Unit should be synchronized with central forced-air system operation
to avoid condensation and mold growth in central forced-air system
distribution ducting if cooling mode of central forced-air system is used.
This configuration is not recommended with high velocity central forced-
air system. High pressures produced by these systems could affect unit
proper operation and generate errors.
CAUTION
NOTE: For this type of configuration, the T-5 option must be
selected on the LCD screen when auto-balancing the unit (see section 5.2).
NOTE: For this type of configuration, the T-4 option must be
selected on the LCD screen when auto-balancing the unit (see section 5.2).
VH0193
altErnatE inStallation (t-3)
Unit should be synchronized with central forced-air system operation
to avoid condensation and mold growth in central forced-air system
distribution ducting if cooling mode of central forced-air system is used.
This configuration is not recommended with high velocity central forced-
air system. High pressures produced by these systems could affect unit
proper operation and generate errors.
CAUTION
NOTE: For this type of configuration, the T-3 option must be selected
on the LCD screen when auto-balancing the unit (see section 5.2).
8
2.3 exterior hooDs instAllAtion / locAtion
Refer to illustration below for an example of proper connection method of the insulated ducts to the hoods. An “Anti-Gust Intake Hood”
should be installed in regions where snow is expected.
VD0028
ExhauSt
hood*
intakE
hood
B
B
a
a
B
optional
duct location
tapE and duct tiE
caulking
Make sure 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 exhaust hood is located at least 3 feet away from any of the following:
• Property lines
• Operable openings into buildings (door, window)
• 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 at 18 inches away from the ground OR depth of expected snow accumulation, whichever is greater.
To minimize cross-contamination of exhausted stale air into the fresh air intake:
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.
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.
Ignoring these recommendations could significantly degrade the quality of the incoming air which, in some cases, could result in health
consequences. In the event of a conflict between our recommendations and any local requirements, the latter shall have priority.
WARNING
!
caulking
lEgEnd:
a - SinglE family ≥ 6 ft
multifamily ≥ 10 ft
B - 18" or dEpth of ExpEctEd SnoW accumulation
* Do not install exhaust hood with non-return
damper since it can freeze in winter.
9
rigid ductS
To prevent potential water leakage in cold side rigid ducting insulation, seal all rigid ducting joints with duct tape.
To avoid transmission of vibrations, always use a 12-inch section of flexible duct to connect rigid ducts to the unit. To connect insulated
rigid ducts to the unit (cold side) using insulated flexible ducts, follow instructions in section 2.3. To connect regular rigid ducts (warm
side) to the unit using non-insulated flexible ducts, use a tie wrap.
2.5 connecting the Ducts to the unit
inSulatEd flExiBlE ductS
Use the following procedure to connect the insulated flexible ducts to the ports of the unit (exhaust to outside and fresh air from outside).
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.
VJ0157
• If ducts have to go through an unconditioned space (e.g.: attic), always use insulated ducts to prevent condensation formation inside
and outside ducts, which could cause material damage and/or mold growth.
• Do not use screws to connect the ducts or transitions to the ports so as not to interfere with ports inner dampers operation. A
non-functioning damper could freeze the unit, which could cause damages.
CAUTION
The vapor barrier should remain intact and free of cracks or openings. An opening could produce condensation inside or outside duct,
which could cause material damage and/or mold growth in the long run.
CAUTION
2.4 instAlling A tAnDem
®
trAnsition* kit (optionAl)
If desired, a Tandem transition kit can be used instead of 2 exterior hoods.
• Follow the instructions included with the tandem termination kit.
*Patented.
VR0003
Part No. VTYIK1
VR0021
Part No. V14695
10
2.5.1 ductS connEction
VD0553
CorreCt installation
VD0554
inCorreCt installation
IMPORTANT: Make sure to connect ducting as illustrated below to get airflows reading accuracy. Correct installation will also allow
proper drainage of water that may accumulate in ducting.
Insulated ducts must have the same diameter as the ports to ensure proper drainage of water that may accumulate in ducts.
CAUTION
Ducting must not be too crushed. Otherwise, airflows reading accuracy will be affected.
CAUTION
R = 3" minimum
NOTE: Route ducts as straight as possible, minimize the number of elbows and design and install ducts in accordance with
ACCA’s Manual D.
11
3. CONNECTIONS
3.1 electricAl connection to optionAl mAin wAll control
Use the terminal connector included to perform the electrical connection for optional main wall control. Make sure wires are not stripped
too long. Metal wires should not cross and touch each other. Check if all wires are correctly inserted in their corresponding holes in the
terminal connector. Use screws to fix wires in the terminal connector.
3.1.1 ElEctrical connEction to SpEEd, dEhumidiStat or automatic optional main Wall control
GND
Data+
Data-
12V
LED
OVR
VC0261
NOTE : For information about the operation of the wall control, refer to the corresponding Installation and User Guide, available at
Broan-NuTone.com.
Always disconnect the unit before making any connections. Failure to cut power could result in electrical shock or damage to the wall
control or electronic module inside the unit.
Never install more than one optional main wall control per unit. Make sure that the wires do not short-circuit between themselves or by
touching any other components on the wall control. Avoid poor wiring connections. To reduce the risk of electrical interference (noise),
do not run wall control wiring next to control contactors or near light dimming circuits, electrical motors, dwelling/building power or
lighting wiring or power distribution panel.
CAUTION
WARNING
!
VD0555
tErminal connEctor
3.1.2 ElEctrical connEction to advancEd optional main Wall control
GND
Data+
Data-
12V
LED
OVR
VC0262
12V D- D+ Gnd
12V D- D+ Gnd
VD0561
Once connected, run low voltage wires as illustrated
above to prevent door from pinching wires.
12
3. CONNECTIONS (Cont’d)
3.2 electricAl connection to optionAl AuxiliAry wAll control
3.2.1 ElEctrical connEction to 20-40-60 optional auxiliary Wall control
GND
Data+
Data-
12V
LED
OVR
VC0263
Required
Recommended for LED synchronization
When configurating OVR option on the LCD screen,
choose among these 3 configurations: BAL (the unit
remains balanced while providing maximum airflow),
PER (the unit is slightly unbalanced since the distribution
motor is in MAX speed while allowing maximum exhaust
ventilation) and DIS (the unit is unbalanced since air
distribution is constant despite a higher need in exhaust
ventilation).
NOTE : The auxiliary wall control can be used with a
3-wire connection by removing the LED signals.
This optional wiring will not allow an installation
with more than 1 auxiliary wall control to properly
synchronize their LEDs on an event requested
from a peer. Only the auxiliary wall control having
requested the timer event will have the LEDs
updated accordingly.
3.2.2 ElEctrical connEction to dry contact optional auxiliary Wall control (E.g. crank timEr)
Crank Timer
or
Any Dry Contact
12V OVR
VC0264
GND
Data+
Data-
12V
LED
OVR
A miswiring that sends a 24 VAC signal to the terminal block (OVR,
LED, 12V, D-, D+, GND) could permanently damage the control
circuit. Verify carefully wire connections before powering-up the
unit.
WARNING
!
Never connect a 120-volt AC circuit to the terminals of the central forced-air system interlock (standard wiring). Only use the low voltage
class 2 circuit of the central forced-air system blower control. The unit is designed for low voltages only. Connecting the unit on 120-volt
circuit would damage it instantly.
WARNING
!
3.3 connection to the centrAl ForceD-Air system
3.3.1 unit opEration uSing a dry contact connEction
This unit can be controlled by any dry contact connection such as the thermostat equipped with an optional ventilation output.
G
R
C
W
Y
Y W G R C Acc+ Acc-
1
J9
GND
Data+
Data-
12V
LED
OVR
R
C
Y
W
G
Gf
Vent
GND
Data+
Data-
12V
LED
OVR
R
C
Y
W
G
Gf
Vent
J9
VE0496
Once wired, unit will toggle between the
Standby mode when contact is opened and
the selected mode when contact is closed.
Choose among these 4 configurations:
minimum (unit operating in MIN speed),
intermittent (unit operating in MIN speed
20 min/hr then as per INT configuration
selection for 40 min), auto* (unit operating
according to outdoor temperature) and
maximum (unit operating in MAX speed)
in DRY option on the LCD screen when the
VENT contact is activated. Refer to section 5
for more details.
* In auto mode, the unit will operate as
follows:
• Less than -13°F = 10 min/hr
• -13°F to 19°F = 20 min/hr
• 19°F to 50°F = 40 min/hr
• 50°F to 77°F = MIN speed
• 77°F to 82°F = 30 min/hr
• 82°F to 91°F = 20 min/hr
• Above 91°F = 10 min/hr
NOTE : This dry contact option will override the main wall control so we do not recommend
the use of a wall control with this type of connection.
NOTE : Following ducting installation configuration and temperature conditions, it may be
necessary for the unit to operate continuously. Refer to section 2.2 for more details.
Wiring with Central Forced-Air System Thermostat
Central Forced-Air
System Thermostat
Central Forced-Air System
LCD Assembly
Terminal Block
1 - External switch or any dry contact can be used to
activate Vent input if not available on the thermostat
Alternate Wiring for
Independent Installation
LCD Assembly
Terminal Block
External switch or any
alternate dry contact
Note: Synchronization with a central
forced-air system with W and
Y is not available with this
configuration.
13
3.3.2 unit intErconnEction With cEntral forcEd-air SyStEm (r/c/g/gf)
These connections must be done if you want the
unit to force the central forced-air system blower
operation when ventilating (refer to solid lines in
diagram hereafter).
NOTE : These connections are required for
installation configuration T-4. Refer to
section 2.2 for more details.
3.3.3 Synchronization With cEntral forcEd-air SyStEm function
The Virtuo technology allows synchronizing the unit operation with the central forced-air system operating time. It prevents unnecessary
central forced-air system operating time while providing a better air distribution.
To use this function, W and Y connections must be added to R and C connections to inform the unit that the central forced-air system is
running (refer to dotted lines in above diagram).
R
C
Y
W
G
Gf
Vent
R
C
Y
W
G
J9
Y W G R C
VE0495
Wiring Options with Central Forced-Air System
LCD Assembly
Terminal Block
Central Forced-Air System Thermostat
Central Forced-Air System
3.4 electricAl connection (moDel -hw only)
2 - Remove the two screws of the LCD screen cover.
VJ0186
4 - Remove electrical compartment cover.
VJ0187
5 - Perform wiring connections.
VE0494
6 - Reverse steps 4 to 1.3 - Flip LCD screen cover.
VJ0188
NOTE: Make sure
LCD wire
connectors are
well inserted
before closing
LCD screen
cover.
LCD wire
NOTE : Electrical wiring must be done by qualified personnel in accordance with all applicable codes and standards.
1 - Open the unit door.
7 - Connect power supply.
3.5 electricAl connection (moDel -pc only)
Plug power cord in an electrical outlet.
VJ0185
14
4. WIRING DIAGRAM
BLK
LOGIC DIAGRAM
WIRING COLOR CODE
BLK BLACK
BLU BLUE
GRN GREEN
RED RED
WHT WHITE
Line voltage factory wiring
Low voltage factory wiring
Low voltage field wiring
120VAC / 60Hz
Power
LED
J1
Mechanized Damper
WHT
BLK
A1
MAIN ELECTRONIC
ASSEMBLY
M1
Power
Supply
(18VDC)
Line
Neutral
K1
G
Gf
AC
Line
Filter
J1-1
F1
High Voltage
(120VAC)
J1-2
To J3
MCU
M3
Stepper
Driver
To J5
WIRING DIAGRAM
J3
J7
1
1
1
J7a
J15a
1
A2
LCD
ASSEMBLY
GRN
Ventilation Fan Motors
BLU
RED
M1
M4
(Supply)
(Exhaust)
MCU
Serial Number
Isolation
Transformer
Motor Fuses
F2
F3
F4
F5
AHU
Wiring
(24VAC)
OVR
LED
12V
D-
D+
GND
Main and
Auxilliary
Controls
Wiring
Thermistor
R1
RT1
(NTC)
Bridge
IPM
Motor 1
IPM
Motor 2
F3
F2
M2
To J2
F5
F4
Isolated
Supply
(12VDC)
(3.3VDC)
J7b
Logic
Supply
(3.3VDC)
Logic
Supply
(18VDC)
M4
Stepper
Driver
To J7
PTC6
PTC4
To J9
R
TH1
To J7a
LCD
Assembly
Isolated GND
Digital GND
To J15a
(A2)
F6
F7
F7
F6
F1
5A/125VAC
GRN
(Exhaust)
1
J2
AHU
Relay
K1
S1
J9
Gf
G
W
Y
C
R
VENT
Thermistor
R2
1
1
1
J5
M3
Mechanized Damper
(Supply)
BLK
BLU
RED
M2
Ventilation Fan Motors
W1
W2
GRN
-PC
(Power Cord)
-HW
(Hard Wired)
TH2
To J7b
PTC2
PTC3
K1
J9
VE0497A
WARNING
• Risk of electric shocks. Before performing any maintenance or servicing, always disconnect the unit from its power source.
• This product is equipped with an overload protection (fuse). A blown fuse indicates an overload or a short-circuit situation. If the fuse blows, disconnect
the product from its power source. Discontinue using the unit and contact technical support.
!
15
5. NAVIGATION ON LCD SCREEN
VD0556
√ button To confirm a selection.
+ button
To increase a value.
To scroll up in a selection.
- button
To decrease a value.
To scroll down in a selection.
VQ0211
VQ0209
VQ021
0
VQ0203
VQ021
2
Indicates current
mode
Indicates
fresh airflow
PRESS ON √ BUTTON TO CHANGE
THE OPERATING MODE.
USE + BUTTON OR - BUTTON
TO SELECT THE DESIRED
OPERATING MODE.
+
-
PRESS ON √ BUTTON TO
CONFIRM THE OPERATING
MODE SELECTION.
VQ0205
VQ0207
VQ020
1
Indicates
stale airflow
+
+
-
-
+
-
+
-
PRESS ON + BUTTON OR - BUTTON TO MODIFY MAX CFM, MIN CFM OR OPTIONS CONFIGURATION.
PRESS ON √ BUTTON DURING 4
SECONDS TO MODIFY MAX CFM
CONFIGURATION.
MAX CFM DATA WILL FLASH.
USE + BUTTON TO INCREASE
VALUE OR - BUTTON TO
DECREASE VALUE.
PRESS ON √ BUTTON TO
CONFIRM VALUE.
PRESS ON √ BUTTON DURING 4
SECONDS TO MODIFY MIN CFM
CONFIGURATION.
MIN CFM DATA WILL FLASH.
USE + BUTTON TO INCREASE
VALUE OR - BUTTON TO
DECREASE VALUE.
PRESS ON √ BUTTON TO
CONFIRM VALUE.
PRESS ON √ BUTTON DURING 4
SECONDS TO MODIFY OPTIONS
CONFIGURATION.
VQ0197
VQ0202
VQ0199
VQ0198
VQ0200
FOR EACH
OPTION
CONFIGURATION,
USE + BUTTON
TO SCROLL UP
IN OPTIONS
AVAILABLE OR
- BUTTON TO
SCROLL DOWN
IN OPTIONS
AVAILABLE.
ONCE OPTION
SELECTION IS
DONE, PRESS
√ BUTTON
TO CONFIRM
SELECTION. THE
NEXT OPTION
CONFIGURATION
WILL THEN
DISPLAY.
VQ0213
+
-
PRESS ON √ BUTTON DURING
4 SECONDS TO ACCESS
COMPLEMENTARY INFORMATION.
VQ0214
VQ0215
VQ0216
+
+
-
-
DISPLAYS ELECTRICAL
POWER CONSUMPTION.
DISPLAYS UNIT
% RUNNING
TIME (PER HOUR)
FOR SELECTED
OPERATING MODE.
DISPLAYS UNIT
AIRFLOWS.
PRESS ON √ BUTTON TO
EXIT COMPLEMENTARY
INFORMATION.
NOTE : According to unit model and configuration, some menus may not be available.
In the example above, the unit provides
114 CFM with a power consumption of
110 W during 50% of the hour. The net
airflow is 57 CFM (50% X 114), the net
power consumption is about 55 W
(50% X 110).
16
5.2 unit First boot
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 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 central forced-air system blower OFF.
auto-Balancing procEdurE
• Confirm that selector is set according to installation direction. Refer to section 1.1.
• Power unit and wait for initialization (approx. 1 min).
• Select desired CFM value. Use (+/-) to adjust the CFM and √ to confirm.
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 (Refer to section
2.2 for more details).
• Auto-balancing is completed.
5.1 lcD screen
DISPLAY DEFINITION
STB Standby mode
MED MED speed
INT Intermittent mode
AUT AUTO mode
SMT SMART mode
OVR 20 Override 20 min
OVR 40 Override 40 min
OVR 60 Override 60 min
DISPLAY DEFINITION
OVR CNT Override by dry contact
AHU Refer to section 6.3 for explanation
HUM Humidistat or Dehumidistat override
TUR Turbo mode
OTH Away mode or Scheduling mode
Flow unbalancing for frost prevention
DEF Defrost mode
EXX or WXX
(XX referring to error or warning number)
Refer to section 8 for each error/warning
explanation
NOTE: If no selection is made within a 8-hour period, the unit will automatically save the settings 110 CFM in MAX, 55 CFM in MIN and
T-1 installation configuration. The unit will be in Standby mode and ready to use.
5.3 higher elevAtion ApplicAtions
When the unit is installed in higher elevation applications, a correction factor should be applied to the CFM value displayed on LCD
screen. Below is the table that can be used for the given elevation above sea level.
Elevation Above Sea Level
Volume Correction Factor
Feet Meters
0 0 1
820 250 1.03
1640 500 1.06
2461 750 1.09
3281 1000 1.12
4101 1250 1.16
4921 1500 1.19
5741 1750 1.23
6562 2000 1.27
7382 2250 1.30
8202 2500 1.34
9022 2750 1.38
9842 3000 1.42
10663 3250 1.47
11483 3500 1.51
To get the corrected airflow value output by the product, use the
following formula:
(CFM from LCD) x (Volume Correction Factor) = Corrected
Airflow Value
Example: Unit installed in a home that is at 4 921 ft. (1500 m)
above sea level:
104 CFM (shown on LCD screen) x 1.19 (correction factor) =
124 CFM (actual airflow output)
Interpolation between the given elevation values and the related
correction factors can be used for a given application.
17
5.4 settings moDiFicAtion
5.4.1 procEdurE to modify min cfm SEtting
• Go to MIN using (+/-) then press on the √ button for 4 seconds.
• Use (+/-) to increase/decrease CFM and √ to confirm.
5.4.2 procEdurE to modify max cfm SEtting
• Go to MAX using (+/-) then press on the √ button for 4 seconds.
• Use (+/-) to increase/decrease CFM and √ to confirm.
5.4.3 procEdurE to modify optionS SEtting
• Go to CFG OPT using (+/-) then press on the √ button for 4 seconds.
5.4.4 procEdurE to modify indEpEndEnt airfloWS SEtting
• Press simultaneously (+/-) buttons for 4 seconds.
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 (Refer to section 2.2)
DRY (Dry contact) MIN* (Minimum), INT (Intermittent), AUT (AUTO), MAX (Maximum) (Refer to section 3.3.1)
OVR (Override) BAL* (Balanced), PER (Performance), DIS (Discretion) (Refer to section 3.2)
* Factory setting
NOTE: If no selection is confirmed within 10 minutes, the unit will exit the menu without saving any changes.
VQ0217
VQ0218
VQ021
9
VQ0220
+
+
-
-
√
√
√
+
WHEN MAX DISPLAYS, PRESS ON
+ BUTTON TO EXIT INDEPENDENT
AIRFLOWS SETTING.
SUPPLY AIRFLOW VALUE WILL FLASH.
PRESS ON + BUTTON OR - BUTTON TO
INCREASE/DECREASE VALUE.
PRESS √ BUTTON.
EXHAUST AIRFLOW VALUE WILL FLASH.
PRESS ON + BUTTON OR - BUTTON TO
INCREASE/DECREASE VALUE.
PRESS √ BUTTON.
NOTE: Make sure to put back the rubber
cover over the LCD once adjustment is
completed. To do so, press the rubber
cover on the door LCD opening.
18
6. USING THIS UNIT
This balanced ventilation unit is designed to provide fresh air to your home while exhausting stale, humid air. Thanks to its energy recovery
module, the unit recovers a large proportion of energy that is part of indoor or outdoor air according to the seasons to improve comfort
and energy efficiency during the heating and the cooling periods. With the Virtuo Air Technology
TM
, this unit responds to the variations in
its environment in an autonomous way, ensuring to provide a proper level of ventilation and air quality. This unit also features automatic
modes (AUTO or SMART) that manage autonomously the required ventilation level as per indoor and/or outdoor conditions. In colder
areas, the unit will perform, at intervals, recovery module discreet defrost to maintain performance and comfort.
6.1 your ventilAtion system
6.2 integrAteD control
All units are equipped with an integrated control, located on top of the unit. For more convenience, these units can be controlled using
an optional wall control or the central forced-air system thermostat equipped with external fan activation.
modE SElEction
1. To change the mode, use (+/-) to access the Mode screen. Press √ to edit the mode
and use (+/-) to change the mode (Standby, Min, Max).
2. Press √ 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.
6.3 Ahu moDe DisplAy
Depending on unit configuration and/or installation, the unit could not be able to reach desired set minimum CFM. This situation could
happen with installed configurations T-2 and T-4 only due to AHU static pressure and a set minimum CFM below 40. In such a case, AHUXX
(XX referring to desired minimum CFM value) will display on LCD screen. In AHU mode, the unit operates in intermittent mode to reach
desired minimum CFM value. Intermittent mode duration varies as per desired minimum CFM value. Intermittent will start with the OFF
waiting for synchronization with furnace.
5.5 FActory settings reset
If any change is made to the ducting, reset settings to restart the airflow test.
procEdurE to rESEt SEttingS
Press on the √ and (-) buttons simultaneously for 4 seconds. Use (+/-) to select Yes or No and √ to confirm.
Then perform the auto-balancing procedure.
VD0556
6.4 moDe DisplAy
A snowflake symbol may appear below the operating mode when outdoor conditions are getting cold. This frost
prevention feature reduces the amount of cold air coming from outside to protect internal components from frost.
VQ0222
19
7. SERVICE PARTS
itEm dEScription part numBEr
1 Door assembly SV1115062
2 Electronic assembly SV1115063
3 Blower right SV1115070
4 Blower left SV1115071
5 Port collar right 6" SV1115072
6 Port collar left 6" SV1115073
7 Motorized damper assembly port 6" SV1115074
8 Filters kit MERV8 SV1115075
9 Core ERV 75% SV1115076
10 Hardware kit* SV1115077
11 Thermistor SV1115064
* Not shown.
VL0092
B
C
D
E
F
G
H
I
J
L
H
rEplacEmEnt partS and rEpairS
In order to ensure your ventilation unit remains
in good working condition, you must use
Broan-NuTone LLC genuine replacement
parts only. The Broan-NuTone LLC genuine
replacement parts are specially designed for
each unit and are manufactured to comply
with all the applicable certification standards
and maintain a high standard of safety. Any
third party replacement part used may cause
serious damage and drastically reduce the
performance level of your unit, which will
result in premature failing. Broan-NuTone LLC
recommends to contact a certified service
depot for all replacement parts and repairs.
20
8. INSTALLER’S TROUBLESHOOTING
Error DEscription solution
E01 Left damper range STEP 1: Inspect the damper system, remove any undesirable obstacle or dirt
(filters and core may have to be removed to access the damper system).
If STEP 1 did not fix the problem, perform STEP 2: Open electrical compartment,
check if connector J5 (Damper CS) is well inserted, check for any loose wires.
If STEP 2 did not fix the problem, perform STEP 3: Disconnect J5 (Damper CS)
and connect a spare damper system. If it works, replace left damper.
Otherwise, replace the electronic assembly.
E02 Left damper timeout
E03 Left damper
E05 Right damper range STEP 1: Inspect the damper system, remove any undesirable obstacle or dirt
(filters and core may have to be removed to access the damper system).
If STEP 1 did not fix the problem, perform STEP 2: Open electrical compartment,
check if connector J7 (Damper EX) is well inserted, check for any loose wires.
If STEP 2 did not fix the problem, perform STEP 3: Disconnect J7 (Damper EX)
and connect a spare damper system. If it works, replace right damper.
Otherwise, replace the electronic assembly.
E06 Right damper timeout
E07 Right damper
E22 Right blower airflow STEP 1: Perform a visual inspection of the left damper system. Clean filters,
distribution registers and outside exhaust hood. Make sure no non-return
damper is installed in exhaust hood since it can freeze in winter. Inspect ducting
to ensure it is not squeezed or bent.
If STEP 1 did not fix the problem, perform STEP 2: Remove ducting of this airflow
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.
If STEP 2 did not fix the problem, perform STEP 3: On the LCD screen, note the MIN
and MAX flow setting values then reset the unit. MAX flow value will display on the
LCD screen. If MAX flow is above desired MAX flow, set MAX and MIN flows.
If STEP 3 did not fix the problem, perform STEP 4: Replace the right blower and
repeat STEP 3.
If STEP 4 did not fix the problem, perform STEP 5: Replace the electronic assembly.
E23 Right motor (drive over current) STEP 1: Turn power OFF 30 s, then ON.
If STEP 1 did not fix the problem, perform STEP 2: Remove core and clear the
ventilation wheel from any dirt or obstacles.
If STEP 2 did not fix the problem, perform STEP 3: Disconnect J3 (Supply) and
connect a spare blower system. If it works, replace right blower.
If STEP 3 did not fix the problem, perform STEP 4: Replace the electronic assembly.
E27 Right motor (drive foc duration)
E28 Right motor (drive speed feedback)
E29 Right motor (startup)
E24 Right motor (drive over voltage) STEP 1: Turn power OFF 30 s, then ON. Under and over voltage may be detected
with severe in-house power supply fluctuation and stop the motor for protection.
If STEP 1 did not fix the problem, perform STEP 2: Replace the electronic assembly.
E25 Right motor (drive under voltage)
E26 Right motor (drive over temp) STEP 1: Validate if the air exchanger is exposed to ambient temperatures within
the operating limits (see p. 4)
If STEP 1 did not fix the problem, perform STEP 2: Replace the electronic assembly.
E32 Left blower airflow STEP 1: Perform a visual inspection of the right damper system. Clean filters,
distribution registers and outside exhaust hood. Make sure no non-return dam-
per is installed in exhaust hood since it can freeze in winter. Inspect ducting to
ensure it is not squeezed or bent.
If STEP 1 did not fix the problem, perform STEP 2: Remove ducting of this airflow
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.
If STEP 2 did not fix the problem, perform STEP 3: On the LCD screen, note the MIN
and MAX flow setting values then reset the unit. MAX flow value will display on the
LCD screen. If MAX flow is above desired MAX flow, set MAX and MIN flows.
If STEP 3 did not fix the problem, perform STEP 4: Replace the left blower and
repeat STEP 3.
If STEP 4 did not fix the problem, perform STEP 5: Replace the electronic assembly.
WARNING
• Risk of electric shocks. Before performing any maintenance or servicing, always disconnect the unit from its power source.
• The wearing of safety glasses and gloves is recommended since a few diagnosis procedures may require the unit to be in operation
while proceeding. Be careful with moving and live parts to prevent any risk of injury.
!
21
Error DEscription solution
E33 Left motor (drive over current) STEP 1: Turn power OFF 30 s, then ON.
If STEP 1 did not fix the problem, perform STEP 2: Remove core and clear the
ventilation wheel from any dirt or obstacles.
If STEP 2 did not fix the problem, perform STEP 3: Disconnect J2 (Exhaust) and
connect a spare blower system. If it works, replace left blower.
If STEP 3 did not fix the problem, perform STEP 4: Replace the electronic assembly.
E37 Left motor (drive foc duration)
E38 Left motor (drive speed
feedback)
E39 Left motor (startup)
E34 Left motor (drive over voltage) STEP 1: Turn power OFF 30 s, then ON. Under and over voltage may be detected
with severe in-house power supply fluctuation and stop the motor for protection.
If STEP 1 did not fix the problem, perform STEP 2: Replace the electronic assembly.
E35 Left motor (drive under voltage)
E36 Left motor (drive over temp) STEP 1: Validate if the air exchanger is exposed to ambient temperatures within
the operating limits (see p. 4)
If STEP 1 did not fix the problem, perform STEP 2: Replace the electronic assembly.
E40 Right blower thermistor STEP 1: Open electric cover and check if thermistor is well connected in
connector J7A.
If STEP 1 did not fix the problem, perform STEP 2: Disconnect connector J7A and
check if the measured resistance (thermistor connector) is within 5 Kohms to
120 Kohms. If outside the range, replace the thermistor.
If STEP 2 did not fix the problem, perform STEP 3: Replace the electronic assembly.
E41 Left blower thermistor STEP 1: Open electric cover and check if thermistor is well connected in
connector J7B.
If STEP 1 did not fix the problem, perform STEP 2: Disconnect connector J7B and
check if the measured resistance (thermistor connector) is within 5 Kohms to
120 Kohms. If outside the range, replace the thermistor.
If STEP 2 did not fix the problem, perform STEP 3: Replace the electronic assembly.
E42 PCBA thermistor fault STEP 1: Replace the electronic assembly.
E43 PCBA temperature over limit STEP 1: Validate if the air exchanger is exposed to ambient temperatures within
the operating limits (see p. 4)
If STEP 1 did not fix the problem, perform STEP 2: Replace the electronic assembly.
E50 Wall control communication lost STEP 1: Inspect wall control wires and connections, make sure wires are not
broken or touching each others.
If STEP 1 did not fix the problem, perform STEP 2: Remove wall control from the
wall installation and test with a short cable. If it works, bring a new cable to the
wall installation location.
If STEP 2 did not fix the problem, perform STEP 3: Test the air exchanger with a
spare wall control. If it works, replace the wall control.
If STEP 3 did not fix the problem, perform STEP 4: Replace the electronic assembly.
E51 Wall control sensor STEP 1: Inspect wall control wires and connections, make sure wires are not
broken or touching each others.
If STEP 1 did not fix the problem, perform STEP 2: Replace the wall control.
E60 Protection mode STEP 1: Perform general inspection of the unit with a special attention to the
damper located on the fresh air (connected outside). Inspect as well the core,
filters.
If STEP 1 did not fix the problem, perform STEP 2: Turn power OFF 30 s, then
ON. Set unit in MAX and see if the airflow can reach the target. If the house logo
showing exhaust on LCD is flashing and flow is lower than expected, inspect
ducting and ports.
8. INSTALLER’S TROUBLESHOOTING (CONT’D)
22
Warning DEscription solution
W22 Right blower airflow STEP 1: Perform a visual inspection of the supply damper system. Clean filters, distribution
registers and outside supply hood. Inspect ducting to ensure it is not squeezed or bent.
If STEP 1 did not fix the problem, perform STEP 2: Remove ducting of the supply 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.
If STEP 2 did not fix the problem, perform STEP 3: On the LCD screen, select the MIN and
MAX flow setting values then reset the unit. MAX flow value will display on the LCD screen. If
MAX flow is above desired MAX flow, set MAX and MIN flows.
If STEP 3 did not fix the problem, perform STEP 4: Replace the supply blower and repeat STEP 3.
If STEP 4 did not fix the problem, perform STEP 5: Replace the electronic assembly.
W32 Left blower airflow STEP 1: Perform a visual inspection of the exhaust damper system. Clean filters, distribution
registers and outside exhaust hood. Make sure no non-return damper is installed in exhaust
hood since it can freeze in winter. Inspect ducting to ensure it is not squeezed or bent.
If STEP 1 did not fix the problem, perform STEP 2: Remove ducting of the supply 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.
If STEP 2 did not fix the problem, perform STEP 3: On the LCD screen, select the MIN and
MAX flow setting values then reset the unit. MAX flow value will display on the LCD screen. If
MAX flow is above desired MAX flow, set MAX and MIN flows.
If STEP 3 did not fix the problem, perform STEP 4: Replace the exhaust blower and repeat
STEP 3.
If STEP 4 did not fix the problem, perform STEP 5: Replace the electronic assembly.
W52
Initial setting
incomplete
STEP 1: Press + or - to access the selection menu.
STEP 2: Complete configuration. (Refer to section 5 for more details).
W61 Electronics
overheating
protection mode
The unit is currently in overheating protection mode. The power transmitted to the motor is
deliberately reduced to decrease electronics temperature. The unit will exit this mode by itself
once conditions are back to normal. It is normal to observe reduction in airflows during this
period. This condition should appear only when the unit is set in high speed and located in a
warmer environment, for example over 30°C (86°F).
W65 Flow direction
selector
Flow selector is probably set in the wrong direction. The red selector must be set on the side
of the outdoor ducting (Duct connected with the outside of the dwelling).
LCD does
not light
up
LCD connection STEP 1: Open electric cover and check LCD wire connectors to ensure they are both well
connected (At each end of the white wire connected behind the LCD).
Frost prevention This is not an error. It indicates a flow unbalancing for frost prevention. The unit will exit this
mode by itself once conditions are back to normal.
AHU Furnace
synchronization
This is not an error. If unit is set in installation type T2 or T4 and the speed setpoint is below 40
CFM, this AHU + CFM target will appear on LCD. In this status, the blowers can remain off for
a certain period of time waiting for synchronization with furnace (time base running to achieve
the targeted CFM level).
8. INSTALLER’S TROUBLESHOOTING (CONT’D)
CAUTION
Make sure that no piece of mineral wool will enter in the unit during installation. Otherwise, this could reduce airflow and generate
vibrations and noise in the unit.
NOTE: If LED on unit is constantly lit, it is the filter maintenance indicator. If LED is blinking, there is an error so check LCD for error
code. With the rubber cover on, only the LED is visible. To see LCD, remove the rubber cover.
23
9. MAINTENANCE
High voltage risk. During maintenance or repairs, always stop the unit then disconnect the unit from its power source to prevent any risk
of electric shock. The wearing of safety glasses and gloves is recommended when handling unit components to prevent any risk of injury
that could be caused by the presence of thin metal.
1. Disconnect the unit from its power source.
2. The door of this unit is hinged and maintained closed by 2 latches. Open them and set aside.
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.
Note: The optional filter is a disposable filter. It should be replaced when it is too dirty.
5. Remove the core.
6. Clean the condensing tray with a damp cloth.
7. Check the exterior air intake hood:
• Make sure 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 power supply.
11. Reset filters, if required. Press + for 5 seconds on the unit integrated control. If using an optional main wall control (SpEEd, dEhumidiStat
or automatic), press on the INT/AUTO button for 5 seconds to reset the filters. If using the advancEd optional main wall control, follow
the instructions on the touch screen.
CAUTION
A blocked air vent or filter, even partially, could cause the unit to malfunction. The comfort provided by the unit could be reduced and
the risk of unit frost could increase. This could cause unit breakdown and/or damage to property.
VD0557
9.1 QuArterly
WARNING
!
mErv8 filtEr rEplacEmEnt
Install the filter over the core.
Push the core and the filter to the bottom of the unit until the core clips.
VD0558
VD0559
B Push on this tab. C Slide the core out.
D Replace the filter.
mErv8 filtErS location
optional mErv13 filtEr location
VD0558
VF0083
2
3
4
1
4
1
2
3
EXTERIOR
EXTÉRIEUR
EXTERIOR
VD0558
VF0083
2
3
4
1
4
1
2
3
EXTERIOR
EXTÉRIEUR
EXTERIOR
24
1. Repeat steps 1 to 6 from the previous section and continue with the following steps:
2. Clean the recovery core:
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 power supply.
CAUTION
• Handle the recovery core with care.
proBlEm try thiS
1. Nothing works. • See if the unit power source is connected.
• See if the unit is receiving power from the house circuit breaker or fuse.
2. Noisy unit. • Clean the unit (see section 9). If the problem is not solved, contact your installer.
3. Condensation inside windows under
cold weather conditions.
• Operate the unit at MAX speed during activities generating excess humidity (family
gatherings, extra cooking, etc.).
• Leave curtains half-open to allow air circulation.
• Store all firewood in a closed room with a dehumidifier or in a well ventilated room, or
store the wood outdoors.
• Keep the temperature in your house above 64°F.
4. Humidity inside under hot/humid
weather conditions.
• Operate the unit in MIN speed.
• Temporarily switch to INT mode (if available).
• Use a dehumidifier.
5. Air too dry. • Operate the unit at MIN speed.
• Temporarily switch to INT mode (if available).
• Temporarily use a humidifier.
6. Air too cold at the air supply register. • Make sure the outdoor hoods are not blocked.
• Operate the unit at MIN speed.
• Install a duct heater (contact your installer).
9.2 AnnuAl (At FAll)
10. USER’S TROUBLESHOOTING
If the unit does not work properly, reset the unit by disconnecting its power source for one minute, then reconnect power supply.
Contact customer service at 1-800-558-1711 for any unresolved issue.
9. MAINTENANCE (CONT’D)
25
11. WARRANTY
This ventilation unit is a high quality product, built and packaged with care. The manufacturer warrants to the original purchaser of its
product, that such products will be free from defects for the period stated below, from date of original purchase. For all units, the warranty
covers parts only against any operational defect. This 5-year warranty is subject to performance of the core maintenance according to
recommendations in this manual. The energy recovery core (ERV) has a 5-year warranty. If any defect should occur, we urge you to read
the user guide carefully. If the problem persists, observe the following rules:
RULES TO FOLLOW
If the unit is defective, contact your ventilation contractor (see address on your manual’s cover page). The contractor will determine with
you the reason for the defect, and if needed, do the replacement or repair. If ever it is impossible to reach your ventilation contractor, call
1-800-558-1711 (in North America); the personnel will be pleased to give you the phone number of a distributor or a service center near
you.
REPLACEMENT PARTS AND REPAIR
In order to ensure your ventilation unit remains in good working condition, you must use the Broan genuine replacement parts only. The
Broan genuine replacement parts are specially designed for each unit and are manufactured to comply with all the applicable certification
standards and maintain a high standard of safety. Any third party replacement part used may cause serious damage and drastically reduce
the performance level of your unit, which will result in premature failing. Broan also recommends that you contact a service depot certified
by the manufacturer for all replacement parts and repair.
BILL OF PURCHASE
No replacement or repair covered by the warranty will be carried out unless the unit is accompanied by a copy of the original bill of
purchase. Please retain your original.
MISCELLANEOUS COSTS
In each case, the labor and shipping costs for the removal of a defective part and/or installation of a compliant part will not be covered
by the manufacturer.
CONDITIONS AND LIMITATIONS
These units are created for residential use only and must be used in a building as defined below:
Building: All structures zoned and/or erected for the act, process or art of human or animal habitation and/or the storage or
warehousing of goods.
Residential use: Dwelling, lodging, suite: Building, or part of a building, intended to act as either the domicile to one or several people
which can include general sanitary, food consumption and rest facilities. Buildings of only one room or a group of
rooms including those occupied by a tenant or owner; comprise the lodgings, the individual rooms of the motels,
hotels, rooming/lodging houses, boarding/half-way/foster homes, dormitories, and suites, as well as the stores and the
business establishments constituted by only one room in a dwelling.
Commercial use: Agricultural establishment, commercial establishment for assembly, care, or detention: Building or part of a building that
does not contain a dwelling, situated on land dedicated to agriculture or farming and used primarily to shelter animals,
or for the production, the storage or the treatment of agricultural or horticultural products or animal food. Building or
part of a building, used for the display or retail of goods, professional or personal services, or commodities. Building,
or part of a building used by persons gathering for civic activities, religious or political assembly, tourism, educational/
vocational training, recreation or the consumption of food or drink. Building, or part of a building used to shelter
persons of impaired physical or psychological states, persons requiring palliative care or medical treatments, or persons
for reasons out of their control, cannot escape harm or threat of danger autonomously.
Industrial use: Building, or part of a building, used for the assembly, the manufacture, the creation, the treatment, the repair or
the storage of products and combustible materials and that contain fuels that when ignited or exploded in sufficient
quantity may constitute a risk of fire.
The above warranty applies to all cases where the damage is not a result of poor installation, improper use, mistreatment or negligence,
acts of God, or any other circumstances beyond the control of the manufacturer. Furthermore, the manufacturer will not be held
responsible for any bodily injury or damage to personal property or real estate, whether caused directly or indirectly by the unit. This
warranty supersedes all prior warranties.
Broan-NuTone LLC, 926 West State Street, Hartford, Wisconsin, USA 53027 Broan-NuTone.com 800-558-1711
Venmar Ventilation ULC, 550 Lemire Blvd., Drummondville, Québec, Canada J2C 7W9 Broan-NuTone.ca 800-567-3855
