Panasonic FV-04VE1 User manual

Panasonic WhisperComfort Spot Energy Recovery
Ventilator (ERV) offers a revolutionary way to
provide balanced ventilation. Affordable and easy
to install, WhisperComfort is energy efficient and
provides fresh ventilated air while maintaining
indoor air quality.
— Spot balanced ventilation fan with low-rate
continuous run
— Easy ceiling mount installation
— Exchange capillary core recovers heat energy
and moisture
— Balances air pressure inside the house
— Ideal for new air tight homes built to meet
energy efficiency standards
FV-04VE1
FV-04VE1

Whole House ERV
WhisperComfort is also suitable to meet whole house ventilation
requirements under ASHRAE 62.2. The sizing charts on the next
page provide a guideline for number of bedrooms and square feet.
Additionally, two or even three WhisperComfort ERV’s may be
installed, often at a cost lower than a traditional whole house ERV.
Ideal for: Condominiums / Housing Authority properties / Hotels /
Studio apartments
ASHRAE 62.2 2007 Standard
The American Society of Heating, Refrigerating and Air Condition-
ing Engineers (ASHRAE) set a standard for whole house ventilation,
requiring that continuous mechanical ventilation be 7.5 CFM per
bedroom (master bedroom X 2) plus 1 CFM per 100 square feet,
with sone not to exceed 1.0. Panasonic WhisperComfort ERV is an
affordable, efficient way to meet this ventilation standard.
FV-04VE1 2 X 4" Ducts
FEATURES
Balanced Ventilation
Tightly built homes and buildings utilizing exhaust only fans can
create negative pressure. WhisperComfort solves this by supplying
air to replace exhausted air, helping to balance air pressure within
the home.
Panasonic WhisperComfort Spot ERV uses two 4 inch ducts – one
to exhaust stale air and the other to supply fresh air from outdoors.
Its low, continuous run ensures volatile organic compounds (VOC’s)
are vented out and replaced with fresh air.
Exchange Capillary Core
Indoor and outdoor air passes through Panasonic’s patented capil-
lary core technology designed to transfer heat energy and mois-
ture. This process tempers supply air while transferring moisture.
Motor Technology
Panasonic uses a single AC condenser motor to run two highly
efficient blower wheels. The motor is totally enclosed to ensure
long-life and continuous quiet operation.
Filters
Two filters clean exhaust and supply air before passing through the
ERV core, extending the life of the core.
Grille Design
The contemporary, low profile grille design incorporates spring clips
for easy removal.
Spot ERV
WhisperComfort is a ceiling insert ideal for a single room. Fresh air
is supplied at a low rate while maintaining balanced air pressure.
This is an affordable way to add ERV to a specific room or a new
addition.
Ideal for: Home office / Game rooms / Family rooms
Tight Home Air Pressure
Without ERV With Spot ERV
Spot ERV Technology
OUTSIDE
Cool
Cool
INSIDE
WarmWarm Heat & Moisture
T r ansfer

SIZING
Need to choose 10/20 CFM mode when installing.
Ventilation Capacity Requirements
(CSA-F326)
10 CFM Single Bedroom Living room Family room
20 CFM Master Bedroom Large Basement room
Spot Ventilation
Need to choose 20/40 CFM mode when installing.
ASHRAE 62.2 2007
1 Bedroom 2 Bedrooms 3 Bedrooms
20 CFM 500 sq ft. N/A N/A
40 CFM 2500 sq ft. 1750 sq ft. 1000 sq ft.
Whole House Ventilation (IAQ)
Sizing example 1 (based on ASHRAE 62.2):
TWO BEDROOMS at 1600 SQ. FT.
Master Bedroom (7.5 CFM x 2) = 15 CFM
Second Bedroom = 7.5 CFM
1600 SQ. FT. x .01 = 16 CFM
_________________________________________________
Total 38.5 CFM
Use WhisperComfort set at 40 CFM
Sizing example 2 (based on ASHRAE 62.2):
FOUR BEDROOMS at 2200 SQ. FT.
Master Bedroom (7.5 CFM x 2) = 15 CFM
Other 3 Bedrooms (7.5 CFM each) = 22.5 CFM
2200 SQ. FT. x .01 = 22 CFM
________________________________________________
Total 59.5 CFM
Use 2 WhisperComfort or 1 WhisperComfort and
1 WhisperGreen®*
* WhisperGreen®are Panasonic exhaust fans with variable speed DC motor and
built-in controls. Ideal for both bathroom intermittent ventilation and whole house
continuous run ventilation.

Frost Prevention Mode
WhisperComfort incorporates built-in frost prevention technology
to avoid core freeze up.
• Above 32ºF both exhaust and supply are fully functional
• From 32ºF to 20ºF the mechanical damper on the supply air
closes for 30 minutes, then opens 1 hour at the set high/
low mode. The cycle repeats itself to avoid core freeze up.
(Exhaust only 30 minutes per 90-minute cycle)
• Below 20ºF the mechanical damper on the supply air remains
closed for 1 hour and opens 10 minutes at low mode. After
10 minutes the cycle will repeat or change if the temperature
has risen above 20ºF. (Exhaust only 60 minutes per 80-minute
cycle)
Settings
WhisperComfort has two 2-speed CFM settings
High Low
__________________________________________________
Setting 1. 20 CFM 10 CFM
Setting 2. 40 CFM 20 CFM factory preset
The factory setting is 40/20 CFM. To change to optional 20/10
CFM setting, move the plug connector located in the junction box
to the 20 CFM side of receptacle. This step must be completed
prior to installation.
Switches
WhisperComfort operates in an on/off and high/low mode. When
the switch is turned off, the unit does not operate. When the switch
is turned on, the unit will operate at the high or low mode. A duplex
switch, designed for a single gang box, may be selected for switch
operation. Switch labels are provided for convenience to attach to
the selected switches.
32ºF
Open 1 hr.
Close 30 m.
Open 1 hr.
Open 10 m.
40 CFM20 CFM
Close 1 hr.
Open 10 m.
19ºF
-13ºF
Balanced Ventilation With Spot ERV
WINTER
SUMMER
Outside Inside
OPERATION
ON OFF
HI LO
Switch is not supplied.

be vacuumed with a soft brush attachment.
Exchange Capillary Core
Whisper Comfort's unique core is made from a paper-like mate-
rial and should never be washed or submerged in water. To clean,
vacuum with a soft brush attachment.
INSTALLATION
Mounting
WhisperComfort measures 14" wide and fits between joists 16" on
center. Adjustable brackets and screws are provided to secure the
unit to the joist on 4 corners.
Wiring
Power consumption is 23 Watts at 40 CFM with a power rating of
120/60 V/Hz. Bring house power to the unit junction box and use 3
wires to connect the 2 switches.
Duct
Insulated 4" duct is recommended. For cold climates, this will help
avoid condensation build up. And for warm climates, this will help
reduce heat transfer to supply air.
In order to reduce unnecessary airflow resistance, duct should be
stretched straight and braced to avoid sagging. Assure that all duct
connections are completely secured with duct tape and/or duct
mastic material.
Elbows
To achieve optimum performance, first, allow a 2 – 3 foot straight
run out of the unit before the first elbow for air flow momentum. An
installation that has a 90-degree elbow immediately after the fan
exhaust port will cause air to back flow into the fan.
Second, use a long radius angle to help ensure optimum airflow
and minimum noise.
Termination/Supply Device
The supply device will need to have the back draft damper
removed and replaced with a screen to prevent insects and
small animals from nesting.
The termination and supply devices should be placed a
minimum of 3-feet apart. If placed closer than 3-feet, then the
angle of each device should be mounted at 45-degrees in
opposite directions.
Optional Accessory – Exterior Wall Cap
Unlike previous installations where two wall caps were
required, WhisperComfort’s FV-WC04VE1 polypropylene wall
cap accessory with styrofoam adaptor conveniently allows
both exhaust (from the right) and supply (from the left) airflow
through a 5.5"-5.75" hole in the building envelope. And
due to the dividers inside the bottom portion of the unique
Y-shape chamber and the new wall cap, cross contamination
is prevented.
MAINTENANCE (Cleaning)
Maintenance instructions can be found in the Operating Manual.
Grille
Follow the Operating Manual to remove
the grille from the unit. Next, remove the
filter from the inside louver of the grille.
Never use gasoline, benzene, thinner or
any other chemicals when cleaning the
grille or ERV unit. Do not wash grille in a dishwasher which may
cause it to deform. Instead, use light dish soap.
Filters
WhisperComfort has two air filters. One filter is located on the
inside louver of the grille. The second filter is located in the unit
held by a bracket with a handle. Pull the handle to remove the filter
bracket and remove the filter from the bracket. Both filters should
Grille
Exchange
Capillary Core
Supply Air Filter Exhaust Air
Filter
3' (920 mm)
Supply hood
should include
a bird screen
with backdraft
damper removed
Exhaust hood
should include
a backdraft
damper
Alternative Wall Cap Installation
SUPPLY
Optional Exterior Wall Cap –
Model # FV-WC04VE1
EXHAUST
Standard Wall Cap Installation

VF080177SS
BENEFITS
• Rust-proof paint treatment on galvanized housing
• Thermal fuse protection
• Meets Washington State Ventilation and Indoor Air Quality
code and ASHRAE 62.2 -2007
• 3 Year Warranty
N/A=not applicable
w.g.=water gauge
S.P.=static pressure
Specifications FV-04VE1
40 CFM 20 CFM 10 CFM
Characteristics
Static pressure in inches w. g. 0.1 0.1 0.1
Air Volume Exhaust (CFM) 40 20 10
Air Volume Supply (CFM) 30 20 10
Noise (sones) 0.8 <0.3 N/A
Power Consumption (Watts) 23 21 17
Speed 1479 1292 1095
Current 0.15 0.10 0.09
Power Rating (V/Hz) 120/60
Specifications
Motor Type Condenser
Type of Motor Bearing Ball
Thermal Fuse Protection Yes
Blower Wheel Type 2 x Sirocco
Apparent Sensible
Effectiveness Heating (%) 32 °F (0°C) 66% at 30 CFM
Total Recovery
Efficiency Cooling (%) 95 °F (35°C) 36% at 29 CFM
Note: CFM and sones are tested and certified in accordance with HVI testing standards.
Energy efficiency is tested in accordance with CSA-C439 standard.
Headquarters
Panasonic Home & Environment Company
One Panasonic Way
Secaucus, NJ 07094
Panasonic Home & Environment Company Unit of Panasonic Corporation of North America
Design and specifications subject to change without notice.
Customer Service
Panasonic Home & Environment Company
5201 Tollview Road
Rolling Meadows, IL 60008
For Order Information:
PHONE: [phone]; FAX: [phone]
For Customer Call Center:
PHONE: [phone]
www.panasonic.com/building
Printed with soy ink on
10% post-consumer
recycled paper.
22-1/2 in.
5 in.
10-3/4 in.
3-3/8 in.
5-9/16 in.
8-5/8 in.
8-1/2 in.
4-1/2 in.
20-3/4”
16-3/4”
18-1/2”
13-1/2”
7-7/8”
13-1/2” to 16”
22-1/8”
4”
4”
6-5/8”
13-1/2” to 16”
2 x 4" ducts
FV-04VE1
Optional Exterior Wall Cap
FV-WC04VE1