RetroZone's patented energy saving Flexdamper system
makes retro-fit zoning and other types of HVAC air control practical and
affordable. The energy saving Flexdampers are designed to insert
into the existing ductwork with little or no modification and will
operate with almost any brand of zone control panel.
IN RETROFIT APPLICATIONS use Flexdampers whenever the
job requires more than one damper per zone. The Flexdamper's lower unit
cost makes zoning practical in retrofit, multi duct systems that may
need several dampers per zone cutting material and labor costs by
thousands.
IN NEW CONSTRUCTION use Flexdampers where in-truss or
other hard to access ducts will not allow the use of mechanical dampers.
Flexdampers are designed to work in steel or flexible duct and can be
easily serviced from a register or plenum.
MATERIALS used by the military in F-16 fighter
aircraft, medical apparatus, and HVAC ducts around the world make
Flexdampers resistant to heat, moisture, aging, airborne chemicals, and
ozone, delivering many years of reliable service. Unlike a
balloon, when inflated the Flexdamper skin is not stretched and
fatigued. The skin simply repositions itself at ultra low air
pressure to block airflow through the duct. In the unlikely event the
outer Flexdamper skin is punctured, the constant supply of air the SPP
Solenoid Pump Panel makes the leak virtually unnoticeable to system
operation.
this same system was previously sold under the “Enerzone Systems
Corp. “ Brand
ROUND FLEXDAMPERS
Available in 4,5,6,7,8,9,10,12 and 14 inch sizes, Flexdampers are
stocked for immediate delivery. Dampers are packaged in a clear
poly bag and come with a straight and "T" connector.
RECTANGULAR FLEXDAMPERS
Install through the register or plenum into an existing rectangular section
of sheet metal. Remotely powered by air, the rectangular Flexdampers are not
hindered by the presence of a bulky motor on the outside of the damper or on
the inside of the damper to disrupt airflow.
Easily bent or folded, the rectangular Flexdamper is inserted through a
register or other smaller opening, making this damper your only option for
retrofitting
air control into ducts that have been covered with sheet rock or other
obstacles, eliminating sheet metal cutting.
Rectangular Flexdampers fit several sizes of duct, due to their
"trim-to-fit" design. Simply measure the size of the duct and trim the blade
and base of the rectangular Flexdamper to the correct size using scissors or
a razor knife.
Rectangular Flexdamper Sizing Chart
Rectangular ducts 10"x04" and smaller rectangular ducts 14" x 08" to 6" x
6"
rectangular ducts 24" x 08" to 14" x 08" rectangular ducts 14" x 12" to 14"
x 08" rectangular ducts 24" x 12" to 14" x 12"
Specs for Round and Rectangular Flexdampers
Rated Cycles: Average of 250,000 cycles, depending on environment
Temperature Range: 0° to 200° F intermittent, 0º to180º F continuous
Inflation Pressure: 10 W.C. (Approx.1/3 PSI)
Leakage: 10% Average.
Static Pressure: Flexdampers are rated for static pressure to .5"
Pump: 110VAC with 24VAC interface. A single pump will handle most
applications. Certain installations requiring automatic heat/cool
changeover, or using multiple large Flexdampers will require faster
actuation times--add a second pump if needed.
AIRZONE SOLENOID PANELS AND PUMPS
Use SPP Panels with round and rectangular Flexdampers. Airzone Solenoid
Panels are compatible with all electronic zone control panels.
The 24VAC electrically actuated air switches, pump, and other components
that make up the SPP panels actuate the Flexdampers. All models come in a
steel enclosure with a hinged door. The number of solenoids is designated by
the model number.
SPP Panels use both pressure and vacuum for precise Flexdamper actuation.
The Solenoid panels can be used with any electronic zone control panel or
can be operated directly with thermostats for slave zone control. Thermostats can tie directly to the 24VAC solenoid.
ZONE CONTROL ACCESSORIES
Solenoid
The sturdy three-way switches used in the Airzone solenoid panel connect to
the
vacuum and pressure side of the pump while the common port connects to
the field damper tubing. Normally open or normally closed operation is
field-selectable by reversing the
tubing connections. Each SOL can inflate
one or more Flexdampers. ALL Flexdampers
tied to a solenoid will open and
close simultaneously.
Specs: 24V operated at about .33 amps. 4.5"x2.5'" x 3"
Used as replacement
or expansion.
Solenoid -- $64.00
Expansion Pump
The pump used with the SPP panel is a long lasting, continuous duty pump that provide both a source of pressure and a
source of vacuum. The pump contains two internal 24VAC relays designed to
operate the pump in conjunction with the HVAC blower and furnace. Two
diaphragms give a redundant action for extra long life. One pump should
provide adequate airflow for most applications, except where a large number
and/or very large Flexdampers are used. If more damper speed is needed,
order an additional pump. The pump is designed for wall mounting next to the
solenoid panel.
Specs: 3.5"x6"x2.5", about 2 lbs. 11O VAC with 24VAC interface
Expansion Pump -- $75.50
Transformers
40VA Plug in transformer use on all zone control systems. Fuse
protected, screw terminals. ALSO COMES IN HARDWIRE AND 75VA. Specs:
3.5"x2.75"x2.25,
about 1 lb.
24VAC, 40VA,
1.7 AMP
Fire Rated Connect Tape
Ten yards of special heat activated tape for joining ends of round Flexdampers, not needed for rectangular Flexdampers
.
Fire Rated Connect Tape -- $11.95
ECL Evaporator Control Limit Switch
RetroZone's popular ECL switch is a great, low cost, low refrigerant
temperature switch that prevents AC coil freeze up. Frozen coils can be
caused by improper refrigerant charge, dirty filters, malfunctioning
dampers, burned out fans, and many other reasons. The ECL switch
snaps on the suction line at the evaporator coil, and has a simple two wire
connection that can wire in series to the "Y" compressor circuit. At 38° F
refrigerant suction line temperature, the contacts open to offline the
compressor, and does not reset until 50° F. Flutter-proof snap acting switch
will not short cycle compressor, and can also be used to open all dampers on
a zoning system. Great protection, great price, and well proven.
Specifications: About l"xl"x2" with bracket., 15 AMP contacts
types of HVAC air control practical and
affordable. The energy saving Flexdampers are designed to insert
into the existing ductwork with little or no modification and will
operate with almost any brand of zone control panel.
