Accessories & Options


  • CVAP technology controls food temperature and texture
  • Holds up to 4 full size food pans, 2 1/2" deep
  • Half size design saves space
  • 120V, 2232W



Special Order

Some items on our website are not normally stocked in our warehouses. These items are marked "Special Order" underneath the price on the item's page.

Please understand that Special Order items may not be able to ship within 1 business day like our regularly-stocked items.Some may be shipped directly from the manufacturer. Others might have to be ordered into our warehouse with the next order from that manufacturer and then shipped to you; this could take up to several weeks.

As a result, we urge you to contact us if you have questions about the delivery time of a Special Order item you wish to order.

Please note - we are not always able to cancel special order items once the order is placed. These items may also be non-returnable. Please contact us if you have any questions before ordering this item.

White Glove Delivery - Available -

What is White Glove service?

Standard common carrier delivery options cover the cost of getting an item to your shipping address but our White Glove delivery service does that and more!

The White Glove agent will call to schedule a Call Before Delivery within a four hour window, which gives you the flexibility to work around your busy schedule and to prepare the space where your item will be placed. Upon delivery, trained professionals will unload your large item from the truck, bring it into the room of choice, unpack the item and remove all packaging debris from the premises.

Please note that White Glove delivery will typically add 5 - 7 business days to your order's transit, and only includes 30 minutes of on-site time. If on-site time beyond 30 minutes is required, you may be responsible for additional fees. While the agents will bring the items into the location of your choice, this service does not include set-up of the items being delivered, such as installation of casters, shelves, or other accessories. Small items will not be unpackaged individually; they will be set in place and debris and packaging material will not be removed.

Winston Cvap Holding Cabinet

Winston Cvap Holding Cabinet

Have a new Winston Cvap holding cabinet? Here's everything you need to know in order to begin using it. First, be sure to remove all tape from inside the cabinet. The rails are adjustable for any configuration. The most common configuration is to start from the bottom and install a rack in every other slot. With every other slot filled with a rack, you can utilize 1 standard sheet pan per shelf, (2) 2" hotel pans per shelf, or (1) 2" hotel pan per shelf using the lip of the pan. To fill the unit with water, you need to fill a container with 2.5 gal. (9.46 liters) of water. Once filled, you can begin pouring the water into the bottom of the unit. Make sure the water temp probe is fully submerged before cooking. Begin the programming process by adjusting your food temperature dial. This dial will directly control your water temperature, thus controlling the internal temperature within your food. You can then adjust your food texture dial on the right hand side. The values on this dial have a plus sign (+) which correlates to the degree of heat above your water temperature. For soft foods, begin with 150 degrees for food temperature and 0 to 5 degrees for food texture. For a general hold setting, begin with 150 degrees for food temperature and add 30 degrees to food texture. For crisp foods, place the food temperature between 100 and 130 degrees, and then add 40 to 80 degrees to the food texture. Once your desired temperature is set, you can adjust the default temperatures on your control board. There are 4 settings to choose from. There's EF, which is known as evaporator Fahrenheit or water temperature. There's EC for evaporator Celsius. There's AF for air Fahrenheit, which is also known as the total temperature inside your cabinet. Finally, there's AC for air Celsius. To adjust the temperature read out, press and hold the F / C button for 3 seconds and toggle between the 4 modes. To turn off your unit, toggle the power switch on the upper left hand side of the machine. If you need to drain the water from the unit, you need to place a 4" deep hotel pan under the drain cap at the bottom of the unit. After you unscrew the cap, place it inside the door frame. You may need more than one pan to catch the water depending on how much water is inside the unit. To remove the rails inside your unit, grab a rail, lift up, and pull out from each slot. In order to remove multiple rails, start from the bottom rail, keep your palm open, lift up your hand, and catch all of the rails at once. You can then pull them all out of the unit. If you need to remove the flue rack, grab the inside of the flue, lift up, and pull it out. To clean the unit, use water, soap, and a non-scratch pad. You should scrub the inside of your evaporator pan, interior walls, the interior door, rails, and the flues. Don't forget to clean your water temp probe while you have all of your supplies out! When cleaning, don't use a degreaser as it may contain chemicals that are harmful to your Cvap. After cleaning, unscrew the drain cap, place a pan underneath the drain and rinse the inside of the unit with fresh water. Once you have rinsed, wipe the unit down with a dry towel. Be sure to clean inside the door gaskets and remove any food particles from the gasket. With these instructions and tips, your Cvap will work more efficiently and last longer!

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Learn how to begin using your Winston Cvap holding cabinet with this guide! Featuring tips and tricks to maintaining your cabinet, this video will show you how to keep your unit clean and working efficiently.

Winston CVAP: Replacing a Door Gasket

Winston CVAP: Replacing a Door Gasket

In this video, we will explain how to install the door gasket on your Winston UHB-8503 holding cabinet. You will need the following tools to complete this installation: a Phillips head screwdriver, nut driver 7/16", and PS2962 door gasket. Before beginning the installation, be sure to unplug the unit from its' power source. First remove the door from the hinges. Open the door to a 90 degree angle, then lift up on the bottom of the door to free it from the hinges. You'll want to balance the door with your off hand to ensure it doesn't get dropped during this process. Before the gasket can be removed, you must first uninstall the side hinges. Using a Phillips head screwdriver and a 7/16" nut driver, loosen the screws and detach the hinge assembly. Finally, flip the door over so that the gasket is facing up and remove the gasket by pulling it out of the groove of the door. Install the new gasket by lining up the groove in the gasket with the groove in the door. Starting in one of the four corners, press the gasket into the door groove, then slide your finger along the ridge of the gasket to ensure a tight fit. Repeat this process until the gasket is completely installed. Flip the door over, then begin reinstalling the hinges. You will notice that both hinges are not identical. Begin by installing the bottom hinge, which looks like the hinge shown above. Then install the top hinge. Finally, coming in at a 90 degree angle, align the hinges on the door with the hinges on the unit and slide the door into place.

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This informative video gives you step-by-step instructions on how to replace a door gasket on your Winston holding cabinet.

Winston Industries Inc. HA4503 120/1 Specs
Width 20 Inches
Depth 27 1/8 Inches
Height 36 1/8 Inches
Amps 18.6 Amps
Hertz 60 Hertz
Phase 1
Voltage 120
Wattage 2,200 Watts
Cabinet Size 1/2 Height
Capacity 3 cu. ft.
Color Silver
Construction Stainless Steel
Controlled Humidity Yes
Door Type Solid
Half Doors No
Insulated Yes
Interior Configuration Universal Slides
Number of Doors 1
Sections 1
Type Holding / Proofing Cabinets

Customer questions about this product

Are there any additional shipping fees associated with this Winston Industries item?
Any Winston Industries product shipping outside of the United States may be subject to additional fees. Please contact Customer Solutions for more information prior to placing your order.
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Winston Industries Inc. HA4503 120/1 Details

Keep all of your signature menu items tasting straight-from-the-oven fresh with this Winston Industries HA4503 half size holding / proofing cabinet with fan! Its innovative CVAP technology gives you precise control over both the temperature and the moisture level inside the unit using two dial controls, ensuring that crisp foods stay crisp, moist foods stay moist, and everything in between. For applications where the door is opened and closed frequently, it also boasts a radial fan to help maintain internal temperatures and settings. Adjustable rack supports let you accommodate a wide range of pan configurations, and its insulated stainless steel cabinet provides durability and superior temperature retention.

- Holds up to (5) half sheet pans or (4) food pans

- Radial fan

- Food temperature dial allows temperature adjustment between 90 to 180 degrees Fahrenheit

- Food texture dial with "proof," "very moist," "firm moist," and "crisp" settings

- Field-reversible door hinges

- 120V, 2232W

Overall Dimensions:
Left to Right: 20"
Front to Back: 27 1/8"
Height (with 3" casters): 36 1/8"
Volume: 3 cu. ft.

This Item Ships via Common Carrier. For more information and tips to help your delivery go smoothly, click here.

Because this item is not stocked in our warehouse, processing, transit times and stock availability will vary. If you need your items by a certain date, please contact us prior to placing your order. Expedited shipping availability may vary. We cannot guarantee that this item can be cancelled off of the order or returned once it is placed.

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Winston Industries Inc. HA4503 120/1

Spec Sheet Specsheet Manual Manual Warranty Warranty School Warranty Warranty

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