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Wine Guardian DS025 Duct Split Wine Cellar Cooling Unit

Wine Guardian  |  SKU: 99H0340-20 + 99H0294-11
$8,329.00

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Fan-Coil Options
Condenser 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(7° C) to 64°F(18° C), perfect for single to multiple cabinet applications and small wine rooms in which serving-temperature cooling is preferred.

This bundle also contains an integral electric heater coil and controls to protect wine cellars from dangerously low temperatures. It is ideal for areas where ambient temperatures fall below 50°F/10°C.

**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/5°C). 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/38°C (condenser air inlet cannot exceed 120°F/49°C).

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.

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SENTINEL SERIES · Ducted Split System

Wine Guardian DS025 Ducted Split System for 250 to 2,000 Cubic Foot Cellars

The Wine Guardian DS025 is a two-piece ducted split wine cellar cooling system rated by Wine Guardian at 3,485 BTU/h at 80°F condenser inlet air, published for cellars of 250 to 2,000 cubic feet. The ductable fan-coil and the remote condensing unit install in two different places and are joined by a refrigerant line set, so the compressor never has to sit next to the wine.

That separation is the reason buyers choose the DS025 over a self-contained ducted unit. The condensing unit can go outdoors, in a garage or in a mechanical room where rejecting heat is easy, while the fan-coil ducts conditioned air into the cellar; our head-to-head comparison of split and through-the-wall cooling units sets out where the heat ends up in each case. Wine Guardian allows a total refrigerant line set of 50 feet with a maximum vertical lift of 15 feet between the two halves, which is what decides whether a given condenser location is workable. The standard condensing unit is rated for a 20°F to 115°F ambient; the optional Extreme Climate Protection bundle protects the system down to minus 20°F.

Every DS025 ships as a matched Sentinel Series pair with a coated evaporator coil and a Wireless2Base remote interface controller. Temperature is held to within 1°F of set point; humidity control is available to within 10% RH once a Wine Guardian humidifier is added, since the base unit does not add moisture on its own. As an authorized Wine Guardian dealer we list the DS025 with full manufacturer specifications. Wine Guardian recommends a licensed contractor for Ducted Split installation, and final sizing should be confirmed with the Wine Guardian cooling calculator and a licensed HVAC professional.

3,485BTU/hCooling at 80°F Condenser Inlet Air
250–2,000ft³Published Cellar Volume
50ftMax Line Set, 15 ft Lift
20–115°FStandard Condenser Ambient
See It in Action

See the DS025 in Action

Watch How It Works

See how a Wine Guardian split system separates the evaporator and condenser so the cellar stays quiet while heat is rejected elsewhere.

  • Split evaporator and condenser for quiet cellar operation
  • Flexible placement of the condensing section
  • Precision temperature control with optional humidification

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

Fit Check

Is the DS025 Right for Your Cellar Size?

Wine Guardian publishes the DS025 for cellars of 250 to 2,000 cubic feet, which places it in the middle of the range on this store alongside the other cooling units for cellars of 1,200 to 2,200 cubic feet. Cellar volume is the starting point, not the whole answer: glass walls, an exterior wall, poor insulation or a warm mechanical space all raise the heat load, so a room near the top of that range should be run through the Wine Guardian cooling calculator before ordering. Our breakdown of what R-values and insulation materials do to a cellar's cooling load covers the part of that load the room itself controls.

✓ Ideal For

  • Wine cellars of roughly 250 to 2,000 cubic feet, per Wine Guardian's published range
  • Rooms where a self-contained ducted unit will not fit, or where there is nowhere good to exhaust condenser heat
  • Installs that need the condensing unit somewhere else entirely, within a 50 foot line set and a 15 foot vertical lift
  • Owners who want the compressor out of earshot of the cellar and the living space

✕ Consider Another Model If

  • You have room for a self-contained ducted unit, which is a simpler single-box install with no field refrigerant work
  • The condenser location you want is more than 50 feet of line set away, or more than 15 feet above or below the fan-coil
  • Supply and return ductwork would run past the recommended 25 foot cumulative total, including bends
  • Your cellar is larger than about 2,000 cubic feet, in which case the DS050 or DS088 is the better starting point
Key Features

DS025 Ducted Split System Key Features

The DS025 ducted split system is built around one idea: put the noisy, heat-rejecting half of the machine somewhere the wine will never notice it. Everything below follows from that.

Feature What it means for your cellar
Two-piece split architecture A ductable fan-coil and a remote condensing unit install in separate locations and are joined by a refrigerant line set, so the system fits rooms where a single-box unit cannot.
50 ft line set, 15 ft lift Wine Guardian allows a total refrigerant line length of 50 feet and a maximum vertical lift of 15 feet between the two halves, which is the practical limit on where the condensing unit can go.
Matched Wine Guardian condensing unit The condensing unit is engineered and manufactured by Wine Guardian to pair with this fan-coil, so the two halves are a rated match rather than a field-assembled combination.
115 V fan-coil, 208-230 V condensing unit The two halves run on different supplies, so both circuits have to exist where you intend to put them. A licensed electrician should confirm the circuits against the Wine Guardian specifications sheet.
Extreme Climate Protection bundle An optional bundle that, in Wine Guardian's wording, protects the system from temperatures as low as minus 20°F or as high as 115°F. Without it the condensing unit is rated for a 20°F to 115°F ambient.
All Wine Temperatures bundle An optional bundle that extends control to a 45°F to 64°F range, per Wine Guardian's DS025 product page, which prints this as the All Wine Temperatures Bundle, so one room can be run at serving temperature rather than long-term storage temperature.
Coated evaporator coil Protects the evaporator side against corrosion, which matters in a humidified cellar where the coil runs wet.
Wireless2Base remote interface controller Monitors temperature and humidity continuously and can be placed in a kitchen or den, so you are not opening the cellar to read the display.
Temperature to within 1°F, humidity to within 10% RH The Wine Guardian ducted split specifications sheet rates temperature control accuracy at plus or minus 1°F and humidity control at plus or minus 10% RH in its own Temperature Accuracy row, which the sheet prints once across all four DS model columns. The Sentinel ducted split manual prints plus or minus 2°F in a Controller Specification shared across more than one product family. Humidity control requires a Wine Guardian humidifier; the base unit does not add moisture.
Field-serviceable, multi-panel access Captive quarter-turn fasteners let panels, duct collars and the grille come off in a couple of turns, so routine service happens on site.

Built-in protection: remote air sensing checks conditions continuously and adjusts before temperature or humidity drift can affect the collection.

How Quiet Is It

How Quiet Is the DS025 Ducted Split?

Wine Guardian does not publish a decibel rating for its Ducted Split systems, so no dB figure for the DS025 exists to quote, and any number you see attached to one did not come from the manufacturer. What the architecture does guarantee is that the compressor is not in the wine room: the condensing unit sits outdoors or in a remote mechanical space, and only ducted air reaches the cellar.

Why a Ducted Split Keeps the Cellar Quiet

  • The condensing unit installs away from the cellar, even outdoors, which removes compressor and condenser-fan noise from the space entirely.
  • The fan-coil mounts outside the wine room and connects through insulated ductwork, so the only thing inside the cellar is a grille.
  • Flexible ductwork absorbs air noise, and sound drops further with each duct turn. Wine Guardian recommends keeping supply and return to a 25 foot cumulative total, so plan turns rather than length.
  • Wine Guardian requires 12 inches of clearance around the perimeter of the condensing unit for airflow, which also keeps it from resonating against a wall.
Full Specifications

DS025 Specifications

The DS025 specifications below are Wine Guardian's own published figures for the 60 Hz Sentinel Series DS025. Where a figure is not printed cleanly on a manufacturer source, it is left out and pointed at the Wine Guardian Ducted Split specifications sheet rather than estimated.

ModelDS025
SeriesSentinel Series
System typeTwo-piece ducted split: ductable fan-coil plus remote condensing unit
Rated cooling capacity3,485 BTU/h at 80°F condenser inlet air
Capacity at other condenser inlet temperaturesWine Guardian publishes eight condenser inlet air conditions for the DS025. The full ladder is in the capacity table directly below this spec list
Recommended cellar volume250 to 2,000 ft³
Fan-coil supply115 V / 1 phase / 60 Hz
Condensing unit supply208-230 V / 1 phase / 60 Hz
Fan-coil current draw0.8 A
Condensing unit current drawNot published here. Confirm on the Wine Guardian specifications sheet with a licensed electrician
Minimum circuit ampacity and maximum overcurrent protectionNot published here. Confirm on the Wine Guardian specifications sheet with a licensed electrician
Electric heat optionAvailable. Wattage not published here. Confirm on the Wine Guardian specifications sheet with a licensed electrician
Fan-coil fan motor90 W
Fan-coil airflow236 CFM; 226 CFM at 0.10 in wc
Condenser fan motor75 W
Condenser airflow275 CFM
RefrigerantR-134a
Storage temperature range55°F to 58°F, per the Wine Guardian Ducted Split product brochure
Temperature adjustment range34°F to 97°F, the controller set-point span rather than a wine storage recommendation
Temperature control accuracyPlus or minus 1°F, from the Wine Guardian ducted split specifications sheet's own Temperature Accuracy row, which the sheet prints once across all four DS model columns. The Sentinel ducted split manual prints plus or minus 2°F in a Controller Specification shared across more than one product family
Humidity control tolerancePlus or minus 10% RH, with a Wine Guardian humidifier fitted
Condenser ambient operating range, standard20°F to 115°F
Extreme Climate Protection bundleProtects the system from temperatures as low as minus 20°F or as high as 115°F
Serving-temperature optionExtends control to 45°F to 64°F, per Wine Guardian's DS025 product page, which prints this as the All Wine Temperatures Bundle. The Ducted Split product brochure states only the lower bound: with the optional serving temperature the system can cool down to 45°F
Maximum refrigerant line set50 ft total length
Maximum vertical lift15 ft between fan-coil and condensing unit
Maximum cumulative duct length25 ft for supply and return combined, including bends, recommended
Minimum duct size8 in on a single duct run; 6 in on a double duct run
Condensate drain connection0.5 in inside diameter. An internal trap is built in, so no external trap is fitted
Condensing unit clearance12 in minimum around the perimeter for airflow
Fan-coil dimensions (L x W x H)21.43 in x 16.6 in x 15.56 in
Fan-coil weight35 lbs
Condensing unit enclosure (L x W x H)34 in x 12.3 in x 26.07 in, as Wine Guardian publishes it on its own DS025 model page. The Ducted Split specifications sheet prints the same enclosure rounded and with the width and height labels transposed, so use the model page ordering
Condensing unit weight75 lbs
Agency approvalETLc
Cabinet constructionAluminum chassis with UL-rated plastic panels
PatentsUS Patent No. D791295; EU Patent No. 003189349-0001; UK Patent No. 9003189349000, published by Wine Guardian against the condensing unit
Sound ratingWine Guardian does not publish a decibel rating for Ducted Split systems
Warranty25 months parts and 13 months labor. Platinum: 25 months parts and labor plus a 36 month parts-only extension on the compressor, evaporator coil and condenser coil

DS025 Cooling Capacity by Condenser Inlet Air Temperature

Wine Guardian publishes DS025 capacity at eight condenser inlet air conditions on the Ducted Split specifications sheet. The 3,485 BTU/h headline for this unit is the 80°F row. Capacity does not fall in a straight line as condenser inlet air rises: Wine Guardian's table peaks at 10°F and rises again at 70°F, and the rows below are reproduced in the printed order, unsorted.

Condenser inlet air Total capacity Sensible capacity
10°F 4,100 BTUH 3,178 BTUH
40°F 3,793 BTUH 3,178 BTUH
60°F 3,485 BTUH 3,075 BTUH
70°F 3,690 BTUH 3,075 BTUH
80°F (rated condition) 3,485 BTUH 3,178 BTUH
100°F 3,178 BTUH 2,768 BTUH
115°F 2,973 BTUH 2,563 BTUH
122°F 2,460 BTUH 2,460 BTUH

Wine Guardian footnote, verbatim: Net cooling capacity at entering temperature and humidity conditions of 57°F and 55% RH at rated airflow. Reduce capacity by 3% for each 10% reduction in evaporator airflow.

Second Wine Guardian footnote, verbatim: All btuh capacity and airflow (CFM) values shown are at tested 230v applied on 208/230v rated units (Condensing units and larger evaporators). If field application allows 208v applied to the units dual rated, you can generally expect 2.5%-3.0% decreases in values shown.

Compatible Accessories

Compatible Accessories

Accessory availability and pricing are confirmed on each live product page. Humidity control is the accessory that matters most on this system: the DS025 does not add moisture on its own, so an integrated or freestanding Wine Guardian humidifier is what brings the cellar into the 55% to 65% relative humidity band.

Compare Across the Line

How the DS025 Compares to the DS050 and DS088

The DS025 is the smallest of the three Sentinel Series ducted splits, and cellar volume is the factor that separates them. All three share the same two-piece architecture, the same 115 V fan-coil and 208-230 V condensing unit split, and the same need for a licensed contractor; what changes is how much room they will hold.

Decision factor DS025 DS050 DS088
Rated cooling at 80°F condenser inlet air 3,485 BTU/h 6,458 BTU/h 9,840 BTU/h
Cellar volume published by Wine Guardian 250 to 2,000 cu ft 650 to 3,000 cu ft 850 to 4,500 cu ft
Cellar-size band on this store Medium Large Large

Best for / not ideal for: choose the DS025 if your cellar sits inside 250 to 2,000 cubic feet and you want the smallest, lightest condensing unit of the three to place. It is not ideal if the room is near or above 2,000 cubic feet, has significant glass, or may be expanded later; in those cases the overlap band from 650 to 2,000 cubic feet makes the DS050 the safer choice, and rooms past 3,000 cubic feet belong to the DS088. Sizing on volume alone is a starting point, not a sign-off.

If you are still deciding on configuration rather than capacity, compare the DS025 against the rest of the Wine Guardian ducted split cooling systems before you commit to a two-piece install.

Frequently Asked Questions

DS025 Ducted Split Questions

How far can the DS025 condensing unit be from the fan-coil?
Wine Guardian allows a total refrigerant line set of 50 feet with a maximum vertical lift of 15 feet between the DS025 fan-coil and its condensing unit. Measure the real routed path, not the straight-line distance, before you commit to a condenser location, and have a licensed HVAC professional confirm it.
Will the DS025 keep running if the condensing unit is outdoors in winter?
The standard DS025 condensing unit is rated for a 20°F to 115°F ambient, so a cold-climate outdoor location needs the Extreme Climate Protection bundle, which Wine Guardian states protects the system from temperatures as low as minus 20°F or as high as 115°F. That bundle is ordered with the system, not added later.
Does the DS025 control humidity by itself?
No. The DS025 controls temperature on its own but does not add moisture; humidity control requires a Wine Guardian humidifier ordered separately. With a humidifier fitted, Wine Guardian rates humidity control at plus or minus 10% RH, which is what brings a cellar into the 55% to 65% band.
Can I install the DS025 myself?
No. Wine Guardian recommends having a licensed contractor perform the installation of Ducted Split units, and the refrigerant line set between the two halves must be evacuated and connected by qualified refrigerant-certified personnel. Using a licensed contractor is also what keeps the Wine Guardian warranty intact.
How much cooling does the DS025 provide and what cellar size does it cover?
Wine Guardian rates the DS025 at 3,485 BTU/h at 80°F condenser inlet air and publishes it for cellars of 250 to 2,000 cubic feet. Wine Guardian publishes the capacity ladder for eight condenser inlet air conditions, and all eight are listed in full in the specifications on this page. Confirm final sizing with the Wine Guardian cooling calculator and a licensed HVAC professional.
How much ductwork can the DS025 handle?
Wine Guardian recommends a maximum cumulative total of 25 feet for supply and return ducts combined, including bends, with a minimum duct size of 8 inches on a single duct run or 6 inches on a double duct run. Longer runs need the Wine Guardian ductwork calculator and a contractor's review.
What warranty covers the DS025?
Wine Guardian provides 25 months parts and 13 months labor as standard. The Platinum option is 25 months parts and labor plus a 36 month parts-only extension on the compressor, evaporator coil and condenser coil. Warranty, returns and service run through Wine Guardian, and the unit should be registered with Wine Guardian after installation.

Find the Right Ducted Split System

Compare the full Ducted Split range or talk to us about sizing the DS025. This guidance is general and is 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!