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WALK IN COOLERS FOR BEVERAGE DISPLAY
 We are proud to introduce the entire line of
superior quality food service equipment from
TURBO AIR
     
TURBO AIR is TRULY BETTER
SEEN AN AD FROM A COMPETITOR TO "BUY
DIRECT"? ASK THEIR SALESMAN WHAT PART OF
DIY WALK IN COOLERS FOR FLORAL STORAGE THE WALK IN, IF ANY, THEY ACTUALLY MANUFA-
FOR THE SMALL OR HOME FLORAL BUSINESS CTURE. THE ANSWER MAY SURPRISE YOU!
SPECIAL PRICES ON POPULAR SIZES! PLEASE NOTE:
  WHEN COMPARING OUR PRICES TO COMPETITORS
1. OUR QUOTED PRICES INCLUDE DELIVERY.
OTHER COMPANIES MAY NOT INCLUDE
DELIVERY IN THEIR PRICE. SHIPPING
CHARGES CAN ADD FROM HUNDREDS TO
THOUSANDS OF DOLLARS EXTRA TO YOUR
COST.
DIY WALK-IN COOLERS FOR FLORAL DISPLAY
 2. SOME OTHER COMPANIES CHARGE EXTRA
FOR THE MANUFACTURERS 5 YEAR
EXTENDED COMPRESSOR WARRANTY. ALL
OF OUR PRICES INCLUDE THE
MANUFACTURERS 5 YEAR EXTENDED
COMPRESSOR WARRANTY.
PLEASE BE SURE TO ASK HOW MUCH EXTRA
THE OTHERS ARE GOING TO CHARGE YOU
FOR THIS. IT IS USUALLY HUNDREDS EXTRA.
3. WHEN COMPARING OUR ALL METAL
WALK IN COOLERS FOR STORAGE CONSTRUCTION, 4" (INCH) THICK POLY-
SPECIAL PRICING ON POLULAR SIZES! STYRENE INSULATED PANELS TO 3.5'
URETHANE INSULATED WOOD FRAMED PANELS,
BE AWARE THAT EVEN THOUGH URETHANE
HAS A HIGHER INITIAL R-VALUE THAN POLY-
STYRENE, WOOD HAS A MUCH LOWER R-VALUE
THAN THE INSULATING MATERIAL THAT
IS IN THE MIDDLE OF THE WOODEN FRAME.
WHEN YOU CALCULATE THE THE R-VALUE OF THE
ENTIRE PANEL MADE OF A WOODEN FRAME,
IT IS MUCH LOWER THAN THE R-VALUE OF
THE INSULATION, WHICH IS ONLY PRESENT
WALK-IN FREEZERS FOR STORAGE IN THE MIDDLE OF THE PANEL. OUR 4" THICK
SPECIAL PRICING ON POPULAR SIZES! POLYSTYRENE INSULATED PANELS CAN LET IN MUCH
LESS HEAT THAN 3.5" WOOD FRAME URETHANE
INSULATED PANELS.
4. OUR COMPETITOR'S PANELS HIGHER HEAT
TRANSFER FACTOR, KNOWN AS K-VALUE
SOMETIMES REQUIRES THEM TO USE A LARGER
COMPRESSOR AND EVAPORATOR COIL JUST
TO KEEP UP WITH THE INCREASED AMOUNT
OF HEAT ENTERING THROUGH THEIR PANELS.
THE MORE HEAT THAT IS LET IN MEANS THERE
COMMERCIAL AND INDUSTRIAL IS MORE HEAT THAT MUST BE REMOVED.
WALK IN COOLERS & FREEZERS THIS COSTS YOU UNNECESSARILY MORE IN
ENERGY COSTS, WEAR ON THE COMPRESSOR
AND INSTALLATION EXPENSE ON YOUR WALKIN COOLER.
MAKE SURE YOU ARE COMPARING APPLE
TO APPLE BEFORE MAKING A BUYING DECISION.
5. URETHANE INSULATION HAS AN R-VALUE
OF FROM 6.25 WHEN AGED, TO 8.33 PER INCH
WHEN BRAND NEW. IF AN R-VALUE IS CLAIMED
WITHOUT INDICATING HOW THICK THE
URETHANE INSULATION IS, THERE MAY BE
A PROBLEM. AT 3.5" OF THICKNESS.
EVEN THE MOST ADVANCED TYPE OF "URE
Walk In Coolers For Do It Yourselfer's THANE", POLYISOCYANURATE, HAS ONLY
UNBEATABLE VALUE / SHOP & COMPARE AN R-FACTOR OF 8.33 PER INCH, OR R-29.15
FOR 3.5" WHEN BRAND NEW.
URETHANES "AGED R-VALUE" CAN DROP
TO AS LOW AS 6.25 PER INCH, OR ONLY R-21.875
FOR A 3.5 INCH " FOAMED IN PLACE" URETHANE PANEL, AND ONLY
R-25 FOR A 4 INCH PANEL. IF A HIGHER R-VALUE IS CLAIMED
ASK FOR A VALID EXPLANATION.
FOR INDEPENDENT R-VALUE VERIFICATION PLEASE VISIT:
http://coloradoenergy.org/procorner/stuff/r-values.htm
6. ALL OF OUR FREEZERS INCLUDE A HEATED PRESSURE
RELEASE VENT. THESE ARE NECESSARY FOR ALL
FREEZERS, BUT ARE NOT INCLUDED IN THE LISTED PRICE
BY SOME COMPANIES.
Combination Units
SPECIAL PRICING ON POPULAR SIZES!
Outdoor Walk-In Coolers And Walk-In Freezers
Walk In Beer & Keg Coolers
"THE COLDEST BEER IN TOWN"
SPECIALPRICING ON OUR 4 MOST POPULAR SIZES!
TrTailer
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CUSTOM MADE REFRIGERATED TRAILERS
FREEZERS, COOLERS.
CLICK BELOW TO LEARN MORE
MAKE IT EASY TO FIND US NEXT TIME
IN THE UPPER LEFT HAND CORNER OF INTERNET EXPLORER
CLICK ON "FAVORITES" THEN "ADD TO FAVORITES" CHANGE
THE NAME TO "WALK IN COOLER EXPERTS" AND YOU'RE DONE.
WE OFFER BOTH WALK IN COOLERS AND FREEZERS THAT MEET
CALIFORNIA ENERGY COMMISION REQUIREMENTS THAT ARE STILL REQUIRED IN 2007.
To read more click the link to below:
http://www.energy.ca.gov/2006publications/CEC-400-2006-002/CEC-400-2006-002.PDF
WALK-IN COOLERS AND FREEZERS: CONSUMER INFORMATION:
At its most basic, a walk in cooler or walk in freezer is nothing more than an insulated compartment
with the appropriate refrigeration system to maintain the desired internal temperature and/or humidity
level.
We will be discussing walk-in coolers and freezers which are modular, meaning they are constructed on
site from insulated panels with a metal skin, and are joined together by "cam-locks" which are pre-built
into the sides of the panels, allowing them to be joined together from inside of the cooler or freezer with
nothing more than an Allen wrench, which is usually supplied with the panels.
PANEL CONSTRUCTION TYPES:
There are four main types of panel construction in use today for walk in coolers and walk in freezers.
1. Foamed in place: (Frameless) The two metal skins are placed in a mold, and the urethane compound is blown, or "foamed"
into the mold with a blowing agent, either R-134A or Pentane. The only thing attaching the metal skins to the insulating material,
is the "gluing" or adhesive properties of the blown in urethane compound as it sticks to the inside of the metal skins as it dries.
In this tye of construction, the panel is not put in a press as with "soft nose" panel construction, (See 3.), so foaming rate,
blowing agent ratio, and prepartion of metal skins is very critical to prevent air pockets.
Gaps, cracks, and channels can be incorporated into the panel insulation without carefull attention in the manufacturing process to
quality control. Since it is not place in a press, delamination of the metal skin can also be a problem with this type of panel construction.
2. Foamed in place: (Wood frame construction) In this type of panel there is a wooden frame constructed of inexpensive
pine or fir "2x4's".
In this type of panel you have a wooden frame with insulating material in the center of the wooden frame.
The metal skin is typically crimped over the edge of the wooden frame and attached to the wood by staples.
The tongue and groove on the edges of the panels are formed from the same wooden frame, so that you have
wood mating to wood when the panels are put together.
A "2x4" is actually nominally 1 1/2" x 3 1/2", so when you see a panel that is 3.5" thick, it is usually a wooden framed panel.
Wooden framed panels are inexpensive to manufacture and are a popular panel with manufacturers for this reason.
The only advantage of wood frame construction for the owner is good structural strength provided by the wooden
frame portion of the panel. This could be important for large ceiling span lengths in outdoor conditions subject to a
heavy snow load for instance.
Their are several important problems with wood frame construction:
a. Wood has a very poor R-value, (ONLY A LITTLE OVER R-1 PER INCH), so the panels overall R-Value is greatly
reduced by the wooden frame, regardless of what type of insulation is used in the center of the panel.
b. Wood, when subject to constant moisture as the result of condensation, as you have in a walk in cooler or freezer
application will eventually rot.
c. Wood under these conditions also commonly develops black mold.
3. High Density Rail: (Not to be confused with "Foam Rail") The highest performance possible with a
"foamed in Place" panel.
This type of panel has advantages of both the soft nose and wood framed panels.
Its main drawback is its price, which is higher than wood frame or soft nose panel construction.
In this type of panel, the frame is composed of high density urethane or polystyrene "boards". The density of urethane
used in the insulating portion of a urethane insulated panel is about 2.2 lbs per board foot. The high density frame portion
of a high density rail panel is about 8 lbs per board foot. The higher density required for the rail portion of the panel
sacrifices some of the panels R-Value, since with urethane or polystyrene, the higher the density, the lower R-Value.
In this type of panel you have the high structural strength of a wood framed panel, without sacrificing the insulating value
of the panel as with wood frame construction.
In this type of panel, you have both a chemical, (adhesive), bond between the metal skin and insulating material, and also a
physical structural attachment between the metal skin of the panel and the panels insulating material.
For walk-ins requiring a floor subject to heavy weight loads, such as pallets, this type of panel construction is superior.
Another advantage is that High Density Rail panels are not subject to rot as wood framed panels are.
4. Soft nose construction: An excellent comination of performance and price. In this type of panel there is no frame per se. The metal skin is formed around the edges
of the insulating material, with a thermal break between the two halves to maximize it's insulating ability.
This type of panels core is composed of solid sheets of insulating material, (either expanded polystyrene of varying densities,
urethane, or extruded polystyrene, so air pockets, gaps, channels and cracks cannot occur as with "either type of "foamed in place"
urethane panel construction.
In soft nose panel construction, unlike "foamed in place" the panel is placed in a press to ensure a positive bond between the metal
skins and the insulating material.
In this type of panel, the tongue and groove is formed from the insulating material itself, so that you have insulating
material mating to more insulating material. This type of panel gives the best insulating value.
It has a lower structural rigidity than a wood framed panel, which could be important on wide
roof spans when subject to snow loads in outdoor applications.
PANEL SKINS:
1. Stainless Steel: Very corrosion resistant but also very expensive. A major drawback is that it easily shows smudges
from hands and fingers, and is not easy to keep clean.
(Never clean Stainless Steel with "bleach" or solutions containing "bleach", as the active ingredient in bleach, Sodium
Hypochlorite is highly corrosive to Stainless Steel.)
2. Acrylic Coated Galvalume: Second only to Stainless Steel in corrosion resistance, unlike Stainless Steel it is very
resistant to smudging and is easily kept clean because of its Acrylic coating.
Galvalume is 12 times more corrosion resistant than G 60 grade galvanized steel and 6 times more corrosion resistant
than G 90 grade galvanized steel.
Its main drawback is that it is more expensive than G90 or G60 grade galvanized steel.
Same as Galvalume below except for its Acrylic coating.
3. Galvalume and Galfan: Both are composed of steel that has been plated with highly corrosion resistant aluminum
and zinc compounds.
This combination gives the material both rigidity and dent resistance as well as excellent corrosion resistance.
It has a flat Silver appearance and is usually embossed.
4. Aluminum: Very resistant to corrosion except for saltwater environments or use in dairy applications where the
Aluminum will come in frequent contact with milk or other dairy products containing lactic acid. It is somewhat more prone
to denting than Galvanized Steel or Galvalume.
5. G 90 Galvanized: Probably the most commonly used skin for walk-in coolers. While not as corrosion resistant
as Galvalume or Stainless Steel, it is less expensive.
The "90" in G90 describes the quantity by weight per square foot of corrosion resisting zinc coating.
With Galvanized steel, the greater the amount of zinc the greater the protection against panel corrosion.
Two commonly used Galvanized steels are designated as G90 and G60. These designations relate to the total amount of
zinc compounds per square foot of area.
G90 contains 0.9 ounces of zinc for every one square foot of panel while G60 contains only 0.6 ounces of zinc.
The important fact to consider is that G90 contains 50% more protective zinc than G60 substrate.
This difference will have a direct correlation to panel longevity and long-term aesthetics of your cooler or freezer.
6. G 60 Galvanized: LOWEST CORROSION RESISTANCE OF ANY METAL SKIN! PLEASE READ MORE NEXT TO G 90
ABOVE
TYPES OF INSULATING MATERIALS:
Expanded Polystyrene (EPS): This well proven insulating material starts as solid beads that are expanded into
conjoined foam beads through the use of heat in the form of steam.
This material comes in two densities, normal density (about 1lb per square foot), which is suitable for cooler applications,
and high density (about 2.25lbs per square foot), which is needed when being used for a walkin freezer application.
The millions of tiny cells which result are filled with air, which give polystyrene its low thermal conductivity.
It has a very stable R-Value and a very good resistance to moisture penetration as can be seen through its widespread
use as a flotation material. Unlike urethane insulation, it loses very little of its R-Value over time.
It is an insulating material that will pay dividends in energy savings for the life of the walk-in cooler or freezer.
Urethane / Polyurethane: This material is formed from the reaction of two chemicals and is usually foamed through
the use of a lighter than air blowing agent such as Pentane or R134A.
Care must be taken by the manufacturer in the panel fill process with urethane / polyurethane insulated panels to avoid
air pockets in the panel as the mixture is foamed in place.
Air pockets cannot occur with expanded polystyrene or extruded polystyrene insulation.
Urethane achieves its high initial R-Value because of the lighter than air blowing agent that is trapped in the millions of tiny cells
that compose the material as the foam sets or "dries".
While its initial R-Value is fairly high, its R-Value is not as stable as polystyrene. Meaning that it can lose much of its
high initial R-Value due to outgassing of the cells that compose the material.
Its drawback is that because the gas in the cells is lighter than air, it is under constant pressure from the surrounding
atmosphere to escape the cells, much as a balloon filled with Helium would.
As the lighter than air gas escapes it is replaced by air and moisture, the enemy of any insulation. As a result,
the high initial R-Value of the urethane insulation drops, thereby substantially reducing its R-value over time.
This process, and its effect on urethanes R-Value is know as "Thermal Drift". This effect is reduced because of the
metal skin but still occurs.
On the other hand, extreme R-Value degradation in polyurethane / urethane which was seen at one time in "unskinned"
applications subject to exposure to direct sunlight, such as sheets of raw urethane without a vapor / radiant barrier.
This problem has been resolved through the use of vapor / radiant barriers, as now used in the roofing industry, or
metal skins as is used with walk-in cooler panels.
It has a relatively low resistance to moisture penetration.
When urethane is manufactured, the cell gas is mostly blowing agent, (now Pentane or R-134A), which have a low thermal
conductivity.
Over time, air and moisture will diffuse into the cells, diluting the blowing agent and degrading the thermal
value of urethane. Polystyrene on the other hand is not affected by outgassing.
Beginning in 2003 urethane manufacturers have adopted a LTTR method (Long-term Thermal Resistance).
Based upon a method for cutting very thin layers of foam, this method accelerates the air-diffusion and helps to predict
the final R-value.
As a result of this potentially dramatic lowering effect of outgassing on urethanes R-Value, most companies utilizing
urethane insulation in their panels will only refer to urethanes high initial R-Value, while not mentioning the much
lower "Aged", or "Long Term" R-Value of urethane.
In general the LTTR values now offered by the industry for urethane insulation are:
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