Specifications
MODEL CFM SONES POWER DUCT
5505.12
ERV FV-04VE1 10/20 or 20/40 0.8 23w max 4"
Whisper Comfort Wall Cap
• Double Chamber for exhaust/supply
5505.181
FV-WC04VE1
National distributor shipping direct throughout the United States
to place orders or for more information:
800 / 876 / 0660
fax 888 / 440 / 4219
Wisconsin 800 / 962 / 7015
Wisconsin fax 920 / 757 / 6452
headquarters 40 Washington Street, Westborough, Massachusetts 01581 • www.efi.org/wholesale
8
Panasonic Whisper
Quiet ERV
What is a Sone?
A sone is a unit of measure for loudness. HVI
(the Home Ventilating Institute) uses sone
measures to compare noise levels for ventilation
equipment. As a real world comparison,
1 sone is approximately equivalent to the
sound level of a quiet refrigerator in a quiet
room. 3 sones is three times as loud as 1 sone.
The most common, inexpensive bath fans that
we have used for decades are typic
ally 5 to
7 sones.
The quality fans that EFI sells are
often 1.5 sones or less.
There are no sone level ratings or comparisons
for remote mounted fans as a testing method
has not been established to compare the
various installation variances.
ASHRAE 62.2 Ventilation Guideline
ASHRAE (American Society of Heating,
Refrigeration and Air Conditioning Engineers)
is an organization that develops standards
for the HVAC industry.
62.2 is a standard that has been set for
ventilation and indoor air quality for residential
low-rise buildings. This applies to single family
homes and up to three story multi-family
homes. 62.2 allows for supply systems,
exha
ust systems and balanced systems to
achieve the
standard.
If you are being asked to comply with the
ASHRAE 62.2 Standard for ventilation, here
is the formulae that is used to determine the
ventilation rate in single family homes:
(Total Square Footage of the home x .01) +
[(Number of bedrooms +1) x 7.5] =
Recommended CFM Rate
EXAMPLE:
3000 square foot home with 3 bedrooms:
(3000 x .01) + [(3 + 1) x 7.5] =
Recommended CFM Rate
30
+ (4 x 7.5} = Recommended CFM Rate
30 + 30 = 60 CFM
60 CFM continuous ventilation is
recommended to comply with ASHRAE 62.2
Go to www.ashrae.org for further information
and more specific detail.
WHISPER COMFORT ERV — ENERGY RECOVERY VENTILATOR
TIP: Use this Spot ERV to provide balanced ventilation in large single rooms like
home offices or bedroom suites, or in small condominiums and apartments. This
unit brings in fresh air while exhausting stale air, recovering heat in the process.
The Panasonic ERV is NOT intended to be used as a bathroom exhaust fan.
Theses units run on low speed continuous (10 or 20 CFM) with the ability to boost to
high speed (20 or 40 CFM). The CFM rates are set during installation.
Whisper Comfort uses two 4 inch round ducts to exhaust stale air while providing fresh air.
Running on a very low speed continuously means it is quiet and energy efficient. Using a
capillary core, both heat and humidity are transferred during the
process of bringing in fresh
air and
exhausting stale air.
• Balanced and quiet ventilation
• Two settings available:
– 10 CFM continuous low with
20 CFM boost
– 20 CFM continuous low with
40 CFM boost
• 0.8 Sones on high speed, less than 0.3 on low
• Use standard switches to operate off/on and
high/low (switches not included)
• Capillary Exchange Core. Transfers both
heat and humidity.
• Frost protection — ou
tside damper closes
at low
temperature to prevent freeze up
– Above 32°F — Exhaust and supply
fully open
– From 32°F to 20°F — Supply closes
for 30 minutes, opens for 1 hour
– Below 20°F — Supply closes for one
hour and opens for 10 minutes
• One motor running two blower wheels
• Two filters — one for each air stream.
Clean with a vacuum.
• Low profile grille design