Self Contained Cooling Unit 2/5 Ton 4200VSi-ECX #1079

49 Reviews
SKU: 1079 4200VSi-ECX
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CellarPro 4200VSi-ECX Cooling Unit (P/N 1079). NOW WITH ENERGY-EFFICIENT EC FANS! CellarPro engineered the 4200VSi-ECX cooling unit to provide maximum cooling power and adjustable humidity control for cellars up to 1,000 cubic feet. Designed for internal installations, 4200VSi-ECX units are built with high-output Danfoss compressors and oversized coils for maximum performance in high-temperature environments up to 110F. These units also feature variable-speed fans with a low setting for super-quiet operation when conditions permit.

All air-cooled refrigeration equipment requires fresh air intake to dissipate the heat generated by the cooling unit. The fresh air intake CANNOT come from the wine cellar space - it must come from space outside the cellar. The unit can be remotely located and ducted to/from the cellar using our cold-side duct hood, or located through a cellar wall (with or without a decorative grill - not included.)


CellarPro's 4200VSi-ECX cooling units (2/5 Ton Nominal) are engineered for wine cellars up to 1,000* cubic feet in both commercial and residential wine cellars.

Performance testing shows that this unit maintains optimal cellar temperature and humidity conditions in extreme conditions up to 110F, and are significantly quieter than comparable units from other brands. Now with energy-efficient EC fans for better performance! Visit our Learning Center for data tables, performance charts and product comparisons among different brands.

*Assuming R19 insulation throughout the cellar, 55F inside the cellar and 85F outside the cellar. Cold-side ducting, glass and/or uninsulated walls, extreme humidity, altitude and other factors may affect the sizing calculation.

Our cooling units are designed to be used in properly-constructed wine cellars that are adequately insulated, airtight and sealed with a vapor barrier. In improperly-constructed cellars, the cooling unit will create excess condensation, leading to damage and premature failure of your cooling unit (not covered by warranty).


  • Now with energy-efficient EC Fans on both the cold and hot sides, save $191.58 in annual energy costs vs AC fans (assumes 75% runtime and $0.15/kWh)
  • This unit can be configured to operate in extreme temperature conditions (-20 to 110F). If the unit's location does not provide sufficient room for airflow, you may need to purchase a rear duct kit.
  • Dual high-output centrifugal fans come with variable speed settings for your choice of maximum cooling power at the high fan speed, or super-quiet operation (53.7 decibels) at the low fan speed.
  • Adjustable humidity control combines a high-output compressor with flexible fan cycles to maintain a recommended level of moisture inside your cellar.
  • Extra-large coils generate maximum cooling power inside the cellar.
  • Excess condensate is managed with a high-capacity stainless steel drain pan, welded 1/2" drain line and 200W electric heating element with "On/Off" Control.
  • Commercial-grade Electrofin coating protects the evaporator coils from leaks and corrosion.
  • Intuitive LED display panel mounted on the evaporator with digital programmable thermostat is simple and easy to use. Remote thermostat is available as an upgrade.
  • Energy-saver mode, quick-chill mode, and auto-defrost cycle provide convenient solutions to common cellar needs.
  • Temperature set point range is 47F to 62F when the cooling unit is properly sized.
  • Unit operates with minimal vibrations and less noise than comparable units from competitors.
  • Audible and visual alarms and maintenance-needed indicator protect the cooling unit and the wine cellar.
  • Common dedicated 15-amp circuit is required to power the unit.
  • With dual power sources and a 10-foot power cord, the unit can be plugged into a receptacle from either the front or the rear of the cooling unit, providing flexibility for most installations.
  • Our easy-access disposable air filter protects the condenser coils and increases the expected useful life of the cooling unit.
  • Adjustable mounting brackets, included as standard equipment, ensure easy installation.
  • Removable steel case and refrigerant access valve provides access to the internal components for servicing and repair.
  • CellarPro's 5-Year Standard Warranty, the most thorough in the industry, protects the unit against manufacturing defects.
  • An optional Extended Warranty (P/N 1836) is available for additional protection.
  • ETL Tested and Certified to rigorous UL Standards for safety.


  • CellarPro 4200VSi-ECX units are self-enclosed, fully-charged units designed to be installed through-the-wall and sized to fit in between standard wall studs.
  • 4200VSi-ECX units also can be located remotely from the cellar with the addition of one of our front duct packages. Offered with or without insulated flex ducting, in a choice of configurations for low or high humidity conditions, our front duct packages allow these cooling units to be ducted up to 50 equivalent feet away from the cellar and requires 8-inch (or greater) ducting from start to finish.
  • When calculating equivalent feet, each 90-degree turn counts for 8 feet.
  • For remote or inaccessible installations, we offer a remote control display kit which is wired to the cooling unit and allows the digital display to be mounted inside or outside the cellar.
  • 4200VSi-ECX units require fresh air intake at the rear of the cooling unit. If sufficient space does not exist to provide sufficient airflow to the rear of the cooling unit, you may need our rear duct kit.
  • 4200VS Series cooling units can be installed completely inside the wine cellar when used with our rear duct kit, which allows you to duct the supply and return airflows from the rear of the cooling unit up to 100 equivalent feet (50 feet per duct).
  • For installation in environments below 40F, 4200VSi-ECX units require our Compressor Heater (P/N 1727) .
  • For installation in environments below 20F down to -20F, we recommend our Fan-Cycling Switch (P/N 6972) combined with our compressor heater.
  • The front of the cooling unit should never be exposed to temperatures below 32F.
  • A CellarPro cooling unit must always be used in the upright position, and should never be operated on its side or upside down.
  • We ship these units strapped to a pallet via common carrier with curbside delivery. Inside delivery is available for an additional charge.

Specs & Resources

Brand: CellarPro

UPC: 077757010798

Size: 14 1/10w x 25 1/10d x 19 3/5h (in)

Weight: 155 lbs

115V AC / 60 Hz
Compressor Amps:
- Common dedicated 15-amp circuit is required to power the unit.
- Startup: 42.0 Amps
- Unit Amp Rating: 10.5 Amps (high fan speed)
- Total Watts: 578 (med fan speed)

BTUH @ 55F / Decibels:
- Low Fan Speed: 3282 / 54 dBA
- Medium Fan Speed: 3617 / 59 dBA
- High Fan Speed: 3938 / 67 dBA
- 1/2 Ton Nominal

Sizing Table: Click here to view sizing table

Warranty Resources
- Warranty Overview
- Limited Warranty - 2 Years (Entire System) / 5 Years (Compressor)
- Optional Extended Warranty (sold separately).

Click on one of the following links for more information:

Options & Upgrades

Cold Temperature
  • Compressor Heater #1727: protects the unit when installed in environments that drop below 40F down to 20F.
  • Fan Cycling Switch #6972: supports the unit in temperatures below 20F and as low as -20F when combined with our compressor heater.

Duct Hoods
  • Duct Hoods (Cold Side) (#7408 for low-humidity environments or #7427 for high-humidity environments) and Kits (#1476 for low-humidity environments or #7426 for high-humidity environments): permits the cooling unit to be located remotely, up to 50 equivalent feet away from the cellar using 8" diameter ducting.
  • Duct Hood (Hot Side)#7407 and Kit #1113: allows you to install the unit completely inside your cellar or in a small space with limited airflow, up to 100 equivalent feet (50 feet per duct) using 8" diameter ducting.
  • Duct Kits are the same as Duct Hoods, and also include 2 x 25-feet of 8-inch insulated (R-6) flex ducting.

Extended Mounting Bracket
  • For retrofit installations where the wall opening is too big for our cooling unit, use our Extended Mounting Bracket on one or both sides to plug the opening.

Filters & Grills
  • Use our filter & grill guide to find the cooling unit filter or duct filter and/or duct grill that is appropriate for your cooling unit.

  • Refer to filter replacements in the previous section.
  • Evap Fresh #17984: Should be sprayed on the evaporator (cold-side) coils once a quarter, especially when the evaporator coils frequently have condensation, to extend the life of the evaporator coils and to reduce the growth of mold in the drain pan.
  • Condenser Brush #1475: With a long handle and stiff bristles, the brush is ideal for cleaning off the dust and dirt that collect on the hot-side condenser coils, especially when a filter isn't used on the coils.

Remote Thermostats, Displays & Probes
  • Networkable Thermostats #27346 and #27310: connect your cooling unit to a networkable, wi-fi enabled thermostat (sold separately). Must be ordered at the same time that the equipment is ordered. Other limitations apply - read the networkable thermostat description for more information. Includes 10 feet of wiring.
  • Remote Display #1603: lets you place the digital panel wherever you want, whether inside or outside the cellar. Includes 10 feet of wiring.
  • Bottle Probe #1434: this remote thermostat with a 10-foot cord overrides the thermostat on the face of the cooling unit, and allows it to monitor air or liquid temperatures at various locations inside the cellar.
  • Bottle Probe Extension Cords available in 25-foot (#1780) and 50-foot (#1781) lengths.

Nobody protects your wine cellar better than CellarPro Cooling Systems! In the event your cooling unit fails and the failed components are covered by our warranty, we'll send a replacement cooling unit to you per the terms of our Replacement Unit Program

CellarPro Replacement Unit Program
If your CellarPro cooling unit fails and the parts that failed are still covered by warranty, we'll send a replacement cooling unit to you, as follows:
  1. Your cooling unit must be registered at CellarPro
  2. Your cooling unit must have been properly sized, installed and maintained
  3. Your cooling unit may not have been permanently modified, damaged or disfigured

Please note:
  • Replacement units are factory-refurbished cooling units with a similar build date as your original unit
  • You are responsible for the shipping cost to send the replacement unit to you and return the original unit to us, and the cost (if any) to remove the original unit and install the replacement unit
  • In order to send a replacement unit, we require a deposit, which will be refunded minus shipping costs upon the return and pending the inspection of the original unit
  • If the original unit failed due to improper intallation or use, the failure is not covered by warranty and we will deduct the cost of the repairs from the refund of your deposit


What is "Sensible BTUH"?

A: You should always use Sensible BTUH* when comparing different brands of cooling units, and when sizing a cooling unit for your wine cellar. Every cooling unit produces a certain amount of Total BTUH, which is the sum of Sensible BTUH (lowers the temperature) and Latent BTUH (lowers the relative humidity). Because our goal is to cool wine cellars while preserving humidity, wine cellar cooling units should have high Sensible BTUH and low Latent BTUH. The relationship between Sensible and Latent BTUHs is know as SHR (Sensible Heat Ratio), which is calculated as Sensible BTUH/Total BTUH. The SHR for CellarPro cooling units is greater than 90%, which means that CellarPro units provide maximum cooling power without stripping out humidity from the cellar environment.

*CellarPro Sensible BTUHs are calculated assuming 55F cellar temperature, 60% relative humidity and 95F ambient for all units except 1800 units (85F ambient).

How cold can the temperature be where the cooling unit is installed?

A: For installations in environments below 40F down to 20F, we recommend adding our compressor heater (P/N 1727), which is included as standard equipment on all outdoor units. Below 20F, in addition to the compressor heater, we recommend adding our fan cycling switch (P/N 6972)

Can the cooling unit be located in a remote location and ducted to/from the wine cellar?

A: These cooling units can be ducted up to 50 equivalent feet away from the wine cellar when used with our cold-side (front) duct hoods and kits. Remember that cold-side ducting must be insulated and additional load should be added to properly size the required cooling unit.

Does the unit really need a dedicated circuit?

A: First, the background. Unlike our competitors, we build our cooling units with precision expansion valves, not cap tubes, which means that our cooling units aren't limited to a 30F differential between the desired cellar temperature and the ambient temperature. Cooling systems with expansion valves are much more precise than cap tubes, and much more sensitive to low voltage conditions, which is why our units require dedicated circuits. When we say "dedicated circuit", we mean that the circuit shouldn't have any items that require heavy draws of electricity - eg other appliances, vacuum cleaners, big-screen TVs, blow-dryers - on the same circuit as the cooling unit. Lighting, computers or other low-draw items shouldn't be a problem on the same circuit.

Can I install the entire unit inside the cellar?

A: These cooling units can be installed completely inside the wine cellar when used with our hot-side (rear) duct hoods and kits, which allow rear supply and return airflows from a temperature controlled environment OUTSIDE the cellar to be ducted (with insulated ducting to minimize heat transfer inside the cellar) up to 100 equivalent feet (50 feet per duct).

If I don't have sufficient space behind the cooling unit, is that Ok?

A: The rear of the cooling unit generates hot air that must have sufficient space to dissipate, otherwise the unit will recycle its own hot air. The hot air exhaust and/or intake can be ducted to another location with our rear duct hoods and kits, which allow rear supply and return airflows from a temperature controlled environment OUTSIDE the cellar to be ducted (with insulated ducting to minimize heat transfer inside the cellar) up to 100 equivalent feet (50 feet per duct).

Can I use the low fan speed setting on the cooling unit when the unit is ducted?

A: Duct hoods and kits create additional static pressure and therefore require the use of the high fan speed to overcome the additional static pressure.


Ratings & Reviews

49 reviews

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Southeast Leisure


CellarPro units are by far one of the higher end cooling systems on the market. We have had very few issues with all the units we have installed in all of our cellars. Delivery is prompt and customer service is easy to work with and very helpful.

CellarPro 4200 unit

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Unit does a good job keeping cellar within the temp range specified. Low maintenance. Do, though, remember to clean filter on a regular basis to keep unit running smoothly.

Excellent Responsive Customer Service


Excellent customer service. My prior unit died after 8+ years (apparently compressor failure), and I decided to replace it with exact same unit as the cut out in my wine room was sized precisely for this unit. Had a replacement unit ordered within a couple of days. Unfortunately, it took about two weeks to fulfill and then another week to get installers out here (different company) so the wine room was down nearly a month. However, the guys got the new unit in place and its all running well. CellarPro was very responsive every step of the way and kept me informed of the supply chain status, and responded to emails same day. Strongly recommend them.

Easy to install and surprisingly quiet

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I just got my unit a week ago. The packaging was impeccable and the delivery went very smoothly. Everything was easy to install. I am honestly amazed at how quiet the unit is. It is in my basement and I can’t hear it at all from upstairs on the low fan setting. I really couldn’t be happier with my purchase!

Works great. 7 year life.


My prior unit failed after a little less than 7 years. Not sure compressor or controller. My unit if fully ducted and performs well. Checking the components required removal and reinstalling so I elected to replace the unit. Life about 7 years. Works great. Not sure 7 years is terrific on life, but otherwise fully satisfied.

Cellar Pro Review

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Unit fits perfectly and keeps room at a perfect temperature and the design looks good in the room. Highly recommend the product.

CellarPro 4200VSi


Easy to install, a better product and much quieter than the make I replaced

CellarPro 4200VSi-ECX Popping Noise


Recently purchased a CellarPro 4200VSi-ECX Cooling Unit. Runs great, very quiet. My only concern is that every so often I hear a popping noise from the unit, like water on a hot skillet. Is that normal?<br><br><b>Reply from CellarPro</b><br>John, thank you for your feedback. When condensate drips into the drain pan, you will hear the water sizzle if the Evaporator is "on". To stop the sizzling sound, you can turn "off" the Evaporator. Regardless, you definitely should check all walls and seals in your cellar to make sure that they're airtight, which will minimize condensation after the initial pull down.

Breezaire Replacement

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When my 15 year old Breezaire died after 15 years, I might have replaced it with another one, but the customer service at Breezaire is slipshod at best. The CellarPro folks really wanted to be helpful and, I am happy to report do in fact make a more robust and higher quality product. My new 4200VSI was easy to install, has been designed to be an exact replacement for the old Breezaire, and began working without any trouble. My only comment is that the unit is noisier than my old Breezaire: it has a high pitched whine which at first told me it was working, but now is annoying. The CellarPro folks told me the noise is normal. Fortunately the unit is the garage and not inside the house. The CellarPro is a solid piece of equipment and I expect many years of service from it.<br><br><b>Reply from CellarPro</b><br>Thank you for your feedback! The unit that you purchased (4200VS) replaced a smaller Breezaire (3000S), and it is true that units get louder as they get more powerful. The additional noise mainly comes from the increased airflow that is necessary to generate the additional cooling power.

Installation easier than explained!

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Bought the 4200VSI to replace my second Breezaire 4000WKE to fail in 12 years. Seems well built and the install was so simple as this one was 1/4 inch smaller than the old unit. Installing with the thermostat upgrade was simple though the cord would be more attractive if it came out of the side or even top corner of the unit than right out of the front control panel are. Solid so far.



The service from these folks was exceptional. I'm just in the process of installing this unit in my new wine cellar. The unit came on time and in perfect condition. Looks like a very well built unit. Can't wait to try it!

CellarPro 4200VSi Cooling Unit


I am purchasing my 2nd Cellar Pro 4200VSi. My first unit has given up after 20 years of remarkable service. The only thing I have had to do in the entire time I have had the cooler is regularly change the filters. Amazing product! Looking forward to another 20 years of reliable cooling and humidity control.



My home unit manufactured by a competitor developed a leak in the cooling coil after four years use and froze over. Needed a replacement ASAP as I have a 1,200 bottle wine cellar and it was summertime. My local wine suppler who sold me the original unit suggested and recommended a Cellar Pro. Within a day over ordering the unit, and air freight, it was in my cellar working. The other good part of this story, the CellarPro was of the same dimension of my original unit and it fit perfectly in the hole in the wall of the cellar.

CellarPro 4200VSi Cooling Unit #1079


so far so good [1 week]. Had to replace a small unit that wasn't designed for my garage based cellar. Summer heat in the garage can hit 90-94 degrees so they did a good job of finding the right type/size unit for those conditions. I am very pleased that they sent a pre-delivery email telling me to make sure I let the unit rest for 24 hours before testing it. Main reason I like the unit is that if the power goes off and the house generator turns on I don't have to do any resets-- it will work normally. Which is important if you are travelling during summer storm season

Replacement Unit


I bought this house 3 years ago and it had a wine cellar with a 4200VSI unit that was 4 years old. After 7 years it gave out. After call CellarPro I felt the best option was to replace rather than repair the unit. They offered me a discount for the replacement unit. The new unit was received promptly and in great condition. Since I was replacing an older unit with exactly the same model the swap was very simple. I would give them 5 stars but since my older unit only lasted 7 years, 4 stars is the appropriate rating.

CellarPro VSi Series

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We are a professional wine cellar designer / builder in the southeast. Climate control systems tend to be the biggest headache in this industry. And over the years we have dealt with most of them, but have made CellarPro our go to choice because of quality, reliability, least amount of maintenance issues and excellent customer service. We have used most all of their systems at one time or another, but the VSI series is what we tend to use the most not only because of its quality, but it’s versatility, ease of installation and cost. It’s a solid product and a solid company. Highly recommend

DIY Cellar Cooler


Local contractors whom I contacted did not seem interested in a smaller existing-cellar cooler system only job. So I did some research and found CellarPro well-recommended, and the 4200VSI unit specs and features seemed an ideal fit for our 800-900 cf of cellar. Unit was in stock and was delivered within days. Came very well packaged and palleted, so the unit was unscathed despite some dings to the outside of the package. Instructions were clear & set up was straight forward and easy, except for actually lifting unit into place of course ... since quality does require some weight in condensers and such. Looks good in the room and appears well built. Unit holds temperature range well and is quiet, we do not even hear the unit when running except in the cellar itself and the adjoining basement exhaust area. This self-contained system is great for a DIY project, if you have the right layout for your cellar and an adjacent space into which to exhaust condenser heat.

Second Time Purchaser

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My first unit lasted almost 7 years to the day. It stopped working at a time of year all the refrigeration specialists are very busy so I decided to purchase a new unit. The new unit fit in the existing hole so the install was very easy and just like the old unit it does a nice job keeping the cellar cool.

wine drinker and cellar builder


fits nice, looks nice and keeps my wine prefect temp

CellarPro Review


I wanted to say that CellarPro packaging is outstanding. Necessary parts are always provided in their respective packaging.

4200 Vsi

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The Quality products and professional but personal service at Cellar Pro is Amazing. They are the only cellar supplier we use and recommend to our customers.

4200 VSI


Had to replace my original BreezeAir which lasted maybe one year. Decided to go with CellarPro based on reviews and quality. The unit is not in a desirable location being in the attic on the 7th floor of a condo in Hot Atlanta. However it has performed nicely until the rear fan motor died. Decided to replace with a new CellarPro 4200 since the previous unit was a workhorse for many years. Would highly recommend CellarPro and the customer service are first rate.

Great customer service

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I had a wine room built as part of a new house. My builder chose the wrong size unit then washed their hands clean of any responsibility. The team at cellar pro were quick to assist even though I was not the one who purchased (builder bought but I paid) and quickly determined I needed a larger unit. I could have gone with the 3200 but decided to have larger 4200 just to be safe. The team walked me through all parts I would need to make my system work. I am happy to report the system is installed and my 300 bottles collection is happy in the 58 degrees chilled cellar. The team also took my smaller unit back and assisted with arranging shipping. To say I am impressed is an understatement. To Ben and Q and the rest of the team thank you.

new wine closet


I just moved into a new home that did not have a wine cellar. I had a Cellarpro 4200VSI in my old wine room and it worked well. I had an issue with the compressor but had it replaced. My new wine room is a bit smaller and I am using the same size unit. This system is ducted at both the front and back of the unit. It is mounted in my attic outside the wine room space. The unit is not in operation yet. I'm impressed with the increase in quality from my last purchase (2010) to now. Customer service has always been responsive & very good.

Much better than Whisperkool

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Replaced Whisperkool unit for third time. This last one lasted only 20 months. One before that 3 months. Went with Cellar Pro 4200 CSU unit for a change and am impressed so far with the performance. It easily keeps my 920 ft3 Cellar at 57 at medium fan speed. The installation was easy although some sort of weatherstrip was not included to seal the small gap between unit and frame out.