Free sizing consultation · Call 1-800-260-1712

Designing a wine cellar?

Free expert consultation on sizing and setup.

Wine Guardian D050 Ducted Wine Cellar Cooling System

Wine Guardian  |  SKU: 99H0251-20
$7,395.00

Call Us At 1 (800) 260-1712 Or Chat Now To UNLOCK THE BEST PRICE AVAILABLE!

Cooling Unit Options

Options:

*All Wine Temperatures Bundle

For extended wine-cellar temperature ranges. Allows a Wine Guardian unit to control to an extended temperature range from 45°F to 64°F, perfect for single to multiple cabinet applications and small wine rooms in which serving-temperature cooling is preferred.

**Extreme Climate Protection Bundle

For Self-Contained Ducted systems: Contains an integral compressor crankcase heater and controls to protect the system against low temperatures (required when inlet air to the condenser coil is below 40°F). The bundle also contains an integral high capacity condenser fan and coil for operation at elevated ambient temperatures. This bundle should be considered when inlet air to the condenser coil is above 100°F (condenser air inlet cannot exceed 120°F).

For Ducted Split systems: Unit protection in extreme climate conditions (on the condenser section only). It is required for continuous operation in climates that fall below 20°F. Enables the system to operate in temperatures as low as -20°F.

***Ultimate Bundle

Contains all the features in the All Wine Temperatures Bundle and the Extreme Climate Protection Bundle.

Ships direct from Wine Guardian

Tracking is provided when the order ships from Wine Guardian

THINKING ABOUT THE PERFECT WINE CELLAR? Save time and money: get expert advice before you buy

Call our Wine Cellar Specialist at 1 (800) 260-1712 for FREE CONSULTATION!

SENTINEL SERIES · Ducted Cooling Unit

Wine Guardian D050 Ducted Wine Cellar Cooling Unit

The Wine Guardian D050 is a self-contained, fully ductable wine cellar cooling unit rated at 6,320 BTU/h at 80°F condenser inlet air, sized by Wine Guardian for wine cellars of 650 to 3,000 cubic feet.

It is the model most residential and light-commercial cellars land on once a small ducted unit runs out of capacity. The unit is installed outside the wine room and connected through insulated supply and return ductwork, so the cellar itself holds nothing but racking and conditioned air.

The D050 also occupies a specific and useful place in the ducted line: it is the largest Wine Guardian ducted unit that still runs on a standard 115 V single-phase circuit. The next step up, the D088 ducted cooling unit, is supplied at 208-230 V, which turns a cooling decision into an electrical one. Wine Guardian publishes a single 115 V column for the D050, so there is no voltage choice to make on this model.

Every unit ships with a coated evaporator coil, a Wireless2Base remote interface controller, an aluminum chassis with UL-rated composite panels and Wine Guardian fail-safe protection. As an authorized Wine Guardian dealer we list the D050 against the manufacturer's own published specifications so it can be compared honestly; final sizing should be confirmed with the Wine Guardian cooling calculator and a licensed HVAC professional or qualified contractor.

6,320 BTU/h
Cooling Capacity
650–3,000 ft³
Cellar Volume
115/1/60
Electrical
125 lbs
Unit Weight
See It in Action

See the Wine Guardian D050 in Action

Watch How a Ducted System Works

Wine Guardian walks through how a ducted cooling system sits outside the wine room and conditions the cellar through insulated ductwork.

  • One self-contained cabinet, installed outside the cellar
  • Supply and return ducts carry the conditioned air in and out
  • Temperature held precisely, with humidification available as an option

Questions about fit? Call our specialists at (800) 260-1712.

Fit Check

Is the Wine Guardian D050 Right for Your Room Size?

Wine Guardian recommends the D050 for wine cellars of 650 to 3,000 cubic feet, which places it at the entry of the large-cellar class alongside the other cooling units for cellars of 2,200 to 4,500 cubic feet. Cubic feet alone does not decide it, though: glazing, insulation, the temperature of the space next door and how warm the air reaching the condenser gets all move the real load. Our guide to sizing a wine cellar cooling system walks through how those factors are counted.

✓ Ideal For

  • Residential and light-commercial wine cellars of roughly 650 to 3,000 cubic feet
  • Rooms that have outgrown a small ducted unit but should stay on a 115 V circuit
  • Installations with a utility room, closet or attic space that can host the unit and reject its heat
  • Hot equipment spaces, since the D050 is rated all the way to 120°F condenser inlet air

✕ Consider Another Model If

  • Your cellar is under about 650 cubic feet, where the D025 ducted cooling unit is the closer match
  • Your cellar is above 3,000 cubic feet, which moves you to the D088 and its 208-230 V supply
  • There is nowhere outside the cellar to place the unit and run insulated duct to it
  • Heat cannot be rejected to an adjacent space, in which case a water-cooled configuration is the better route
Key Features

Wine Guardian D050 Key Features

The D050 pairs the standard Sentinel Series ducted feature set with two things specific to this model: a 115 V supply and a capacity rating that runs to 120°F condenser inlet air.

Feature What it means for your cellar
Self-contained ducted design Evaporator, compressor, condenser, fans and controls sit in one cabinet outside the cellar, so the wine room holds only racking and air.
Runs on a standard 115 V circuit The D050 is the largest ducted Wine Guardian unit supplied on a single 115 V, single-phase feed, so a bigger cellar does not automatically force a 208-230 V circuit into the plan.
Rated to 120°F condenser inlet air Capacity is published all the way to 120°F condenser inlet air, unlike the D088 and D200, which Wine Guardian rates only to 90°F. That matters when the unit lives in a hot garage, attic or mechanical room.
Coated evaporator coil Protects the evaporator against corrosion in the damp, high-humidity air a wine cellar is deliberately kept at.
Wireless2Base remote interface controller Reads cellar temperature and humidity continuously and can be mounted away from the unit, in a kitchen or den, so conditions are visible without opening the cellar.
Precision control to ±1°F and ±10% RH Holds the 55°F to 58°F storage band Wine Guardian publishes for the ducted line, with an optional humidifier for 55% to 65% relative humidity.
Aluminum chassis with UL-rated composite panels Resists dents and scratches through shipping and installation, which matters on a 125 lb cabinet that has to be carried into a mechanical space.
Field-serviceable, multi-panel access Panels, duct collars and the grille come off with a screwdriver, so routine service happens on site rather than by returning the unit.
Optional bundles and humidification All Wine Temperatures, Extreme Climate Protection and Ultimate bundles add heating, low and high ambient protection and serving-temperature control where the installation calls for it.

Built-in protection: the system monitors conditions through remote air sensing and corrects before temperature or humidity drift can reach the collection.

How Quiet Is It

How Quiet Is the Wine Guardian D050?

Wine Guardian does not publish a decibel rating for any ducted unit, including the D050, so any dB number attached to this model comes from somewhere other than the manufacturer. What decides the noise you actually hear is placement: the D050 is installed outside the wine room, and only conditioned air travels into the cellar.

  • The cabinet sits in a utility room, closet or adjacent space, away from where anyone stands
  • Internal components are mounted on rubber-in-shear isolators to keep vibration out of the structure
  • Insulated flexible ductwork absorbs air noise, and level drops again at every turn in the duct run
  • A longer duct run buys quiet but costs static pressure, which is why duct design is part of the sizing decision

Where published decibel figures do exist across the Wine Guardian range, we have collected them by model in our comparison of the quietest wine cellar cooling systems.

Full Specifications

Wine Guardian D050 Specifications

Every figure below is taken from Wine Guardian's own published material for the D050 at 60 Hz. Where the manufacturer's sheet is the only safe source for a number, this table says so rather than reprinting a value we cannot read cleanly.

ModelD050
SeriesSentinel Series
Line frequency60 Hz
Rated cooling capacity6,320 BTU/h at 80°F condenser inlet air
Recommended cellar volume650 to 3,000 ft³
Storage temperature range55°F to 58°F
Humidity (with optional humidifier)55% to 65%
Control accuracy±1°F / ±10% RH
RefrigerantR-134A
Electrical supply115/1/60 (single voltage, no 208-230 V option)
Current draw, cooling11.3 A
Minimum circuit ampacityRefer to the Wine Guardian Ducted Specifications Sheet and confirm with a licensed electrician
Electric heat optionFactory-mounted option for low ambient locations; ratings are published on the Ducted Specifications Sheet
Evaporator / condenser fan motor100 W
Rated airflow390 CFM
Dimensions (L x W x H)41.5 in x 22.5 in x 19 in
Weight125 lbs
Condensate drain connection0.50 in
Minimum ductwork size10 in round
Agency approvalETL listed, UL 1995 / CSA C22.2
Cabinet constructionAluminum chassis with UL-rated composite panels
Capacity rating conditionsEntering air 57°F at 55% RH, at rated airflow
Net cooling at 60°F condenser inlet6,920 BTU/h
Net cooling at 70°F condenser inlet6,570 BTU/h
Net cooling at 80°F condenser inlet6,320 BTU/h
Net cooling at 90°F condenser inlet5,860 BTU/h
Net cooling at 110°F condenser inlet4,865 BTU/h
Net cooling at 120°F condenser inlet4,585 BTU/h
Standard warranty25 months parts, 13 months labor
Platinum warranty option25 months parts, 25 months labor, plus a 36-month parts-only extension on the compressor, evaporator coil and condenser coil

On circuit sizing: minimum circuit ampacity and the electric-heat ratings are the figures an electrician sizes the branch circuit from, and they are published on the Wine Guardian Ducted Specifications Sheet linked below. Take them from that sheet and have a licensed electrician confirm them for your installation.

Compatible Accessories

Accessories for the Wine Guardian D050

The D050 requires a minimum of 10 inches round on its duct connections, which is the size these fittings are built for. Accessory availability and pricing are confirmed on each product page. An integrated or freestanding Wine Guardian humidifier is what raises the cellar to 55% to 65% relative humidity.

Compare Across the Line

How the Wine Guardian D050 Compares on Capacity, Voltage and Price

The self-contained ducted line steps in three places, and the step that catches people out is not capacity but voltage. Capacities are quoted on one basis, 80°F condenser inlet air, so the columns are comparable.

Decision factor D025 D050 D088
Rated cooling at 80°F condenser inlet air 3,760 BTU/h 6,320 BTU/h 9,600 BTU/h at 230 V
Wine Guardian cellar volume range 250 to 2,000 ft³ 650 to 3,000 ft³ 850 to 4,500 ft³
Electrical supply 115 V single phase 115 V single phase 208-230 V single phase
Manufacturer list price $6,043 $7,395 $8,185

Best for and not ideal for: choose the D050 if your cellar is between about 650 and 3,000 cubic feet and you want the largest ducted capacity available without adding a 208-230 V circuit; choose the D025 if the room is under 650 cubic feet, where the D050 would short-cycle rather than run properly; choose the D088 if the room is above 3,000 cubic feet and a 208-230 V supply is already available or easy to add. Price alone should not decide it, because the gap between the D050 and D088 is usually smaller than the cost of bringing new voltage to the equipment location.

If the cellar is genuinely large, our guide to the best cooling systems for large wine cellars covers ducted, split and water-cooled routes side by side, and the full range of Wine Guardian ducted wine cellar cooling systems is worth comparing before committing.

In the Box

What's Included with the Wine Guardian D050

The D050 self-contained air-cooled ducted cooling unit
Wireless2Base remote interface controller
Integral controls and remote air-sensing technology
Manufacturer documentation and quick-start guide

Ductwork, duct collars and a humidifier are ordered separately. Installation guidance is set out in our ducted wine cooling installation guide, and Wine Guardian handles warranty and service directly.

Frequently Asked Questions

Wine Guardian D050 Questions

Is the Wine Guardian D050 reliable enough for long-term wine storage?
Wine Guardian does not publish a failure rate or service-life figure for the D050, so the manufacturer's own warranty is the honest measure of what it stands behind: 25 months parts and 13 months labor as standard, and with the Platinum option 25 months parts and labor plus a 36-month parts-only extension on the compressor, evaporator coil and condenser coil. Warranty and service run through Wine Guardian.
What electrical supply does the Wine Guardian D050 need?
The D050 runs on a single 115 V, single-phase, 60 Hz supply and draws 11.3 A in cooling, which is why it is the largest ducted Wine Guardian unit that does not force a 208-230 V circuit. Wine Guardian publishes the minimum circuit ampacity on the Ducted Specifications Sheet; because that figure is what sizes the branch circuit, take it from that sheet and have a licensed electrician confirm it before wiring.
What size wine cellar does the Wine Guardian D050 cool?
Wine Guardian lists the D050 for wine cellars of 650 to 3,000 cubic feet. That range assumes a well-insulated, vapor-sealed room, so glass walls, a hot adjacent space, poor insulation or a warm condenser location all reduce it, and final sizing should be confirmed with Wine Guardian's cooling calculator and a licensed HVAC professional or qualified contractor.
How loud is the Wine Guardian D050 in the wine room?
Wine Guardian does not publish a decibel rating for any of its ducted units, so no honest dB figure exists for the D050. The unit installs outside the wine room and reaches it through insulated ductwork, which means the compressor and fans are never in the space you occupy and the noise you hear depends on where the unit sits and how the duct run is built.
How much cooling capacity does the Wine Guardian D050 provide?
The Wine Guardian D050 is rated at 6,320 BTU/h at 80°F condenser inlet air. Net capacity falls as the air reaching the condenser gets hotter, from 6,920 BTU/h at 60°F to 4,585 BTU/h at 120°F, and every figure is rated at entering conditions of 57°F and 55% relative humidity at rated airflow.
Where is the Wine Guardian D050 installed?
The D050 is designed to sit outside the wine cellar, in a utility room, closet or adjacent space, and to condition the room through insulated supply and return ductwork. This keeps the equipment out of the cellar and leaves the whole interior free for storage, but it also means the space holding the unit needs enough air and service access to reject heat properly.
Does the Wine Guardian D050 control humidity?
The D050 controls temperature to within ±1°F and displays humidity, but it does not add moisture on its own. To hold 55% to 65% relative humidity you add an integrated or freestanding Wine Guardian humidifier, which connects to the system and is ordered separately.
What airflow does the Wine Guardian D050 move, and what duct size does it need?
The D050 is rated at 390 CFM and requires a minimum ductwork size of 10 inches round. Undersized or overly restrictive duct runs cut airflow and capacity directly, and Wine Guardian's own rating note states that capacity drops 3% for each 10% reduction in evaporator airflow.

Find the Right Ducted Cooling Unit for Your Cellar

Compare the full ducted range or talk to us about sizing the D050 for your space. This guidance is general and intended to help narrow the selection. Final sizing, installation design, electrical requirements and configuration should be confirmed with Wine Guardian's official documentation and a licensed HVAC professional or qualified contractor.

📞 Free Expert Consultation I Not sure what system you need? Call us at 1-800-260-1712 and talk to a Wine Cellar Expert!