5 Signs Your Wine Cooling System Is About to Fail
Don’t wait for a costly surprise. Wine Guardian Dealer breaks down the top 5 signs your wine cooling system may be failing — and how to fix it before damage...
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Wine Guardian TTW01B Defender Through-The-Wall Wine Cellar Cooling Unit
Wine Guardian | SKU:
WGTTW01BE1LCD2A0BHF
$5,099.00
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Wine Guardian TTW01B Defender Through-The-Wall Wine Cellar Cooling Unit is backordered and will ship as soon as it is back in stock.
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Wine Guardian TTW01B Defender Through-The-Wall Wine Cellar Cooling ...
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THINKING ABOUT THE PERFECT WINE CELLAR? SAVE TIME AND MONEY—GET EXPERT ADVICE NOW!
Call our Wine Cellar Specialist at 1 (800) 260-1712 for FREE CONSULTATION!
Defender Series · Through-The-Wall
Wine Guardian TTW01B Defender Through-The-Wall Wine Cellar Cooling Unit
The Wine Guardian TTW01B Defender is the top-tier, self-contained through-the-wall wine cellar cooling unit, delivering a nominal 1,440 BTU/h at 75°F for small wine cellars and displays in the most demanding environments.
It pairs precise temperature and humidity control with an Exterior Wall Package, Electric Heater, and the Ultra Quiet Package for whisper-quiet operation as low as 47.9 dBA, the quietest in the Through-the-Wall line, making it the choice for cellars on exterior walls or in spaces with wide temperature swings.
As an authorized Wine Guardian dealer, Wine Guardian Dealer offers the full TTW Defender line with expert selection support, so you can confirm the right capacity and configuration for your space before you buy.
1,440
BTU/h nominal
47.9dB
whisper-quiet
0–125°F
ambient rated
58lb
weight
Cooling capacity is rated under standard conditions. Actual sizing depends on cellar insulation, glass exposure, ambient temperature, and other factors. Always confirm the right model with Wine Guardian's sizing calculator and a qualified professional before purchase.
Replaces TTW009
The TTW01B Defender is the current-generation replacement for the discontinued Wine Guardian TTW009. If you are servicing or upgrading an older small-cellar system, it is the direct, feature-complete successor, with updated controls, an eco-friendly refrigerant, and the full Defender feature set. A qualified professional can confirm fit for your existing opening and electrical supply.
Who It Is For
Is the TTW01B Defender Right for You
✓ Ideal For
Collectors and trade buyers with small wine rooms or displays in demanding settings, including exterior walls, garages, or spaces with wide temperature swings, who want full temperature and humidity control, heating, and the quietest TTW operation available.
× Consider Another Model If
You do not need exterior-wall rating, heating, or the Ultra Quiet Package (choose the TTW01B Sentinel), you want the value temperature-only option (choose the TTW01B Classic), or you need a different cellar capacity (step up to the TTW02B Defender).
Key Features
Built for the Most Demanding Conditions
| Feature | What it means for your cellar |
|---|---|
| Whisper-Quiet + Ultra Quiet Package | Runs as low as 47.9 dB at 6 feet, the quietest unit in the Through-the-Wall line, so it stays unobtrusive in living spaces and tasting rooms. |
| Precise Temperature Control | Holds cellar temperatures from 42°F to 75°F with minimal swings, protecting wine from the fluctuations that cause premature aging. |
| Humidity Sensor | A combined thermostat and humidistat lets you connect a Wine Guardian humidifier to keep corks supple and labels intact. |
| Condensate Evaporator | An internal re-evaporation system manages condensate and usually removes the need for a dedicated drain line. |
| Exterior Wall Package | A coated condenser coil rated for 0°F to 125°F ambient lets the unit exhaust through an exterior wall, garage, or attic. |
| Electric Heater | A built-in heating coil warms the cellar when the room drops below your set point, holding conditions in cold climates. |
Triple fail-safe protection: a condensate overflow switch, a loss-of-charge switch, and an auto-reset high-pressure switch help prevent water damage, protect the compressor, and reduce system downtime.
See It in Action
See the TTW01B Defender in Action
Watch How It Works
See the Wine Guardian Through-the-Wall system in action and how its smart, self-contained design protects your collection.
- Through-the-wall installation, no ductwork
- Exterior-rated with heater and humidity control
- Quietest TTW operation with the Ultra Quiet Package
Questions about fit? Call our specialists at (800) 260-1712.
Whisper-Quiet
How Quiet Is It
The TTW01B Defender measured at six feet, against everyday sounds.
60 dBNormal conversation
55 dBElectric toothbrush
50 dBModerate rainfall
47.9 dBTTW01B Defender at 6 ft
45 dBQuiet library
Installation
Installation Requirements
The TTW01B Defender is designed for do-it-yourself installation between standard wall studs. A wall sleeve or the included mounting bracket supports the unit, which slides through the opening. With the Exterior Wall Package it can exhaust through an exterior wall in rated outdoor conditions.
Installs through an interior or exterior-rated wall
Mounting bracket included; wall sleeve available separately
Internal condensate evaporator often eliminates a drain line
Standard USA Type B plug; 60Hz power (US/Canada)
This is general guidance only. Final placement, electrical requirements, drainage, and ventilation should be confirmed with Wine Guardian's official documentation and a licensed HVAC professional or qualified contractor.
In the Box
What’s Included
TTW01B Defender cooling unit
Mounting bracket
Owner’s manual, brochure, and spec sheet
Specifications
Full Technical Specs
ModelTTW01B Defender
Cooling Capacity830–1,650 BTU/h (nominal 1,440 BTU/h @ 75°F)
Line Frequency60Hz (USA, Canada, and most of Central & South America)
Power260 W, FLA 5.1 A, MCA 6.2 A, 120V, single phase
Plug TypeStandard USA Type B (NEMA 5-15)
Dimensions33.8 × 14.1 × 15.75 in
Weight58 lbs
Temperature RangeMaintains cellar conditions from 42°F to 75°F
Ambient Range0°F to 125°F with Exterior Wall Package
CondensateInternal condensate re-evaporator (no drain line typically required)
RefrigerantNon-flammable, low global warming potential
Noise LevelAs low as 47.9 dB at 6 ft (2 m)
ConfigurationSelf-contained, through-the-wall, air-cooled, ductless
Exterior RatedYes, with Exterior Wall Package
Optional Accessories
Compatible Add-Ons
Wall Sleeve and Hardware
94H0054-00
Remote Interface Controller
91H0105-01
Exhaust Duct Collar
19H0018-00
Wine Cellar Humidifier
99H0174-21
Browse all parts and accessories, or explore related ducted and ductless split systems.
Related Models
Compare Across the Line
Browse the full Through-the-Wall range or all wine cellar cooling units.
FAQ
Frequently Asked Questions About the TTW01B Defender
How do I determine the size of a wine cellar cooling unit?
Sizing depends on cellar volume, insulation quality, glass exposure, ambient temperature, and door seals, not square footage alone. The TTW01B Defender is rated at a nominal 1,440 BTU/h at 75°F. Confirm the correct capacity with Wine Guardian's sizing calculator and a qualified HVAC professional before purchase.
How do I install the Wine Guardian TTW01B Defender?
The TTW01B Defender is built for do-it-yourself through-the-wall installation between studs using a wall sleeve or mounting bracket. With its Exterior Wall Package it can exhaust to an outdoor-rated wall. Confirm final placement, electrical, and ventilation with a licensed professional.
How quiet is the Wine Guardian TTW01B Defender?
The TTW01B Defender operates at about 47.9 dBA at 6 feet, the quietest unit in the Through-the-Wall line. It combines internal sound reduction foam with the Ultra Quiet Package for extra noise dampening around the grilles.
Does the Wine Guardian TTW01B Defender control humidity?
Yes. The TTW01B Defender includes a humidity sensor that combines a thermostat and humidistat, allowing a Wine Guardian freestanding humidifier to be connected to help maintain roughly 55 to 65 percent relative humidity for long-term storage.
What makes the TTW01B Defender different from the Sentinel and Classic?
The Defender is the top-tier Through-the-Wall series. On top of the Sentinel's humidity sensor and condensate evaporator, it adds an Electric Heater, the Exterior Wall Package (coated condenser coil rated for 0 to 125°F ambient), and the Ultra Quiet Package.
How often should a wine cellar cooling system be serviced?
Plan on periodic cleaning of the coils and filter plus an annual inspection. Always follow the maintenance schedule in your unit's documentation and use a qualified HVAC professional for service to protect both performance and your collection.
When should I replace my wine cellar cooling system?
Common signs include an inability to hold temperature, rising noise or vibration, short-cycling, or repeated repairs. The TTW01B Defender is the current replacement for the discontinued Wine Guardian TTW009 and is a common upgrade path for demanding environments.
Need Help Confirming the Right Wine Guardian Model?
Not sure if the TTW01B Defender is sized correctly for your cellar? Our Wine Cellar Specialists can confirm the right capacity and configuration for your space.
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