Frequently Asked Questions: Central Vacuum
The power units are designed for different type applications and for varying
square footage requirements of residences. Please contact Technical Support
at: 1-888-882-7626 for assistance.
What size "Power Unit" should I use?
How many inlets may be installed
in a system?
You may install as many as you require, assuming all are in proper working
condition with tight seals and gaskets. Though it is recommended to keep
this number to a minimum.
Where should I locate my wall inlet
If your are using one of Broan's current carrying hoses the wall valve
inlets should be located within six feet of a household receptacle. We
suggest that you take a 25 foot length of cord or a measuring tape set
to 25 feet then walk though your home and locate your wall inlets so that
they cover all the areas you wish to vacuum.
What is water lift?
"Water Lift" is an industry-wide technical standard which defines
the strength of a system's suction. Water lift is a measure of how high
a given system can lift a column of water. The result is expressed in
inches. The higher the number, the more powerful the vacuum system. Under
no circumstances, should any Broan-NuTone Central Vacuum System be used
to remove water.
What are air watts?
Air watts is a combination of air flow and vacuum water lift created
by the power unit. The greater the air watts, the greater the cleaning
ability of the system.
Is it required to exhaust the power
unit to the outside?
Noting indoor air quality in a residential setting, Broan recommends
venting the exhaust to the outside. This is not mandatory, but is recommended
for a complete installation. One of the advantages of a central vacuum
system is the ability to vacuum up all items and microsopic particles
that may not be captured by the primary filter (bag) will then be sent
to the outside environment through the exhaust duct.
When designing a system, what should
I keep in mind?
Minimize the number of inlets and place the power
unit as low as possible in the system.
Does Broan offer any information
on how to install a Central Vacuum System?
There are installation instructions on our website.
Can regular plumbing PVC be used
for central vacuum tubing?
No. Broan Canada Inc. uses a special "thin wall" tubing. This
tubing must be used to ensure proper fit of inlets, hoses etc
also proper operation of the installed system.
What is cyclonic action?
Cyclonic action is a special feature that forces dust and debris to the
bottom of the power unit's canister allowing the power unit to operate at
is peak effectiveness.
What is the difference between the
air-driven powered vacuum cleaning heads and the electric powered cleaning
The air-driven powered heads use some of the power unit's suction to
operate the cleaning head. The electric cleaning heads uses all of the
power unit's suction for cleaning. In order to use the electric cleaning
heads you must use one of Broan's current carrying hoses.
When is a "power brush"
or "power head" required?
Broan recommends that you have a power brush if you have carpet in the residence.
The power brush loosens the dirt for proper cleaning along with separating
and lifting the nap on the carpet to keep it in top condition and proper
Are the air-driven brushes operationally
equivalent to the power brushes?
The air driven twin-turbine is a uniquely designed, super performing
non-electric brush for cleaning with the central vacuum system. The electric
power brush maintains constant brush action through the use of the motor
used to run the unit.
Will a dedicated electrical circuit
be required for a central vacuum power unit installation?
Yes. It must be either a 15 amp or 20 amp circuit depending on the specific
power unit you are installing.
My Central Vacuum has lost a lot
of its suction. What is the most likely cause?
If you have not regularly cleaned your motor filter that may be the cause
of poor system performance. Consult your owners manual or call Broan Technical
support for assistance. Other problems that cause poor system performance
are, leaky wall valve inlets, blockages in the intake or exhaust piping,
or a blockage in your system hose.
Is the Power Unit Filter washable?
Yes. Hand wash and hang to dry. Make sure the filter is absolutely 100% dry
before re-installing it!
What do I do when my hose gets clogged?
Take a straightened clothes hanger and fish through one end of the hose until you hit
obstruction, then push through or fish out.
How can I clear a blockage in my
A blockage in your system can be quite a challenge. You can rent a plumber's
snake and then work it through your system piping. Sometimes a small diameter
hose worked through your piping may clear a blockage.
Can I use my central vac to vacuum
up drywall dust?
No. The Broan central vacs are manufactured for residential use only.
This does NOT include drywall dust from renovations! Drywall dust could
harm your motor, and will not be covered under warranty.
Why does my system keep running
even with my hose removed and the power unit's switch turned off?
The most likely cause is incorrect wiring to your wall valve inlets. Disengage
one of the system wires on the front of your power unit and if the system
shuts down then you need to verify the wiring to your wall valve inlets
is correct. If the problem persists call Broan Technical Support.
How do I remove my power units motor
You must first remove the dust collection canister. After locating the
motor filter grasp the flexible band that holds the filter in place and
then pull it to the center of the filter, and it should come free. If
you have trouble call Broan Technical Support.
What is the difference between a
Two Stage and a Three Stage motor?
A Two (2) Stage Motor has two swirling blades while the Three (3) Stage
Motor has three swirling blades. The three blades create more air turbulence
and as a result give greater vacuum power.
What is the Sone Rating for any
of our Central Vacs?
We do not calculate this because the Power Unit is normally located in
a remote area of the house. But, the muffler diminishes the shrill of
the exhausted air and quiets the sound.
Is it better to install the Power
Unit in the basement or garage?
There is no better way. But, if you do not want the exhausted air in
your home you should put the Power Unit in the garage. <br> Another
reason for installing the Power Unit in the garage is if the owner wants
to use the built-in inlet on the Power Unit to vacuum out his/her vehicle.
<br> By putting the Power Unit outside, it also removes the noise
from the house.