Through-the-Wall Wine Cellar Cooling Units

It’s time to get serious about your fine wine collection. Wine Guardian patented Through-the-Wall (TTW) wine cellar cooling units bring exceptional airflow, optimal temperature control, and advanced connectivity features to ensure you enjoy 100% of the flavors of your wine.

Designed and assembled in the USA from commercial-grade components, TTW units combine maximum efficiency with unmatched reliability to create peak wine storage conditions for your small- to mid-sized wine room or wine wall.

Front view of the TTW Sentinel series unit

Introducing the TTW Family

Wine Guardian offers an expanded range of Through-the-Wall (TTW) systems, each designed to meet specific wine storage needs. Available for all series, our TTW units come in a range of capacity options to suit your cellar or display size:

Classic Series
Series

For the value-conscious wine collector, the TTW Classic Series provides the essential features for precise temperature control in a simplified, streamlined unit.

Front view of the TTW Sentinel series unit
Series

The TTW Sentinel Series is a versatile cooling system, perfect for a wide range of cellar or wine display applications.

Defender Series
Series

For the most demanding wine cellar applications, the TTW Defender Series maintains ideal cellar conditions in ambient temperatures from 0°F (-18°C) to 125°F (52°C), along with a variety of extra features.

Available for all series

TTW Brochure
Whisper-Quiet Operation

Whisper-Quiet Operation


Designed to limit vibrations and operational noise that disturb the ambience of your wine space, TTWs can be as quiet as 48 dBA at 6 feet (2 meters).

Unrivaled Energy Efficiency


Optimized for maximum energy efficiency, the Wine Guardian TTW can save you hundreds in operation costs compared to other through-the-wall systems on the market. Save up to $4,400 in electricity bills over five years with select TTW models.

Sleek, Modern, and Built to Last
Precise Temperature & Humidity Control

Precise Temperature & Humidity Control


The TTW can consistently achieve temperatures ranging from 42°F (6°C) to 75°F (24°C), minimizing fluctuations in your cellar that harm your wine collection. An optional free-standing humidifier can be installed to achieve a constant relative humidity of 55% – 65%.

Designed for the Do-It-Yourselfer

Designed for the Do-It-Yourselfer


The TTW’s DIY-friendly design makes installation possible for any wine aficionado. Just insert the TTW into your cellar wall, make your drain connection if needed, plug it in, and enjoy your wine. A licensed contractor is not required. All TTW units are designed to fit legacy and competitor wall sleeves.

Eco-Friendly Refrigerant

Eco-Friendly Refrigerant


Wine Guardian TTWs employ a non-flammable refrigerant with a low global warming potential in compliance with U.S. environmental regulations.

Fail-Safe Protections


The TTW’s advanced fail-safe features protect your system and cellar from:

  • Water Damage. When it detects a buildup of condensation within the unit, the TTW’s condensate overflow switch will automatically shut it off, preventing further water accumulation and leakage that would damage your cooling system and cellar.
  • Compressor Damage. In the event of a refrigerant leak, the TTW’s loss-of-charge switch will turn off the unit to prevent damage to the compressor and further charge loss.
  • System Downtime. When cellar conditions exceed the TTW’s safe operating parameters, the auto-reset high pressure switch will shut off the unit to prevent system damage. The unit will reactivate when conditions return to normal, without requiring a manual reset.
Fail-Safe Protections
Complete Cellar Control

Complete Cellar Control


With a built-in thermostat and humidistat, Wine Guardian lets you monitor temperature and humidity and control temperature right at the face of the TTW unit. Want to control and monitor the conditions from your smartphone, tablet, or smart home device? Not a problem. Thanks to the TTW controller’s Bluetooth® and NFC capabilities, you can connect to your TTW anywhere in your home — so you can monitor your wine cellar wherever is most convenient to you.

Choose Your Perfect Cooling Solution

Enhance your cellar with these additional features, standard with select series.

Sound Reduction Foam

Sound Reduction Foam.
Internal sound attenuation material to reduce operational noise. (Sentinel Series, Defender Series)

Humidity Sensor

Humidity Sensor.
Combined thermostat and humidistat to allow seamless humidifier connection and precise humidity control. (Sentinel Series, Defender Series)


Condensate Evaporator

Condensate Evaporator.
Re-evaporation system to prevent condensate buildup and leakage without the need for a drain line connection. Note: A drain connection may be required if the unit exhausts to an unconditioned space or the installed area has an inadequate vapor barrier. (Sentinel Series, Defender Series)

Defender Series Only
Ultra Quiet Package

Ultra Quiet Package.
Additional sound reduction material for extra quiet operation. (Defender Series)

Exterior Wall Package

Exterior Wall Package.
Exterior-rated grille and coated condenser coil to allow for installation through an exterior wall—operates in ambient temperatures from 0°F (-18°C) to 125°F (52°C). (Defender Series)

Electric Heater

Electric Heater.
Heating coil to warm cellar air when temperature drops below the set point. (Defender Series)

Learn About Our Through-the-wall System

Explore the features of our system by clicking on the highlighted components below.

Through-the-Wall Wine Cellar Cooling Units

DIY-friendly Installation

Through-the-Wall systems are designed to be installed between the wall studs in your wine room without needing the help of a licensed contractor. Just cut a hole in the wall, install the wall sleeve or mounting brackets, and slide the unit through the opening.

Multiple Capacity Options

All Wine Guardian Through-the-Wall models are available in 1000, 2000, or 3500 BTU/h capacity options to meet a variety of application needs—from small wine displays to mid-sized wine rooms.

Integrated Controller

Monitor and control cellar temperature and humidity from the integrated controls on the face of the TTW unit, or from your smart device via Bluetooth or NFC.

Through-the-Wall Wine Cellar Cooling Units

Greater Energy Efficiency

Optimized for maximum energy efficiency, the TTW can save you hundreds in energy costs and meets U.S. Department of Energy efficiency standards for walk-in refrigeration systems.

Eco-friendly 513A Refrigerant

In accordance with U.S. environmental regulations, Wine Guardian TTWs utilize a low global warming potential 513A refrigerant, making them the most environmentally friendly Through-the-Wall cooling systems in the U.S. market.

Fail-safe Protections

The TTW’s advanced fail-safe features protect your system and cellar from damage:

  • Condensate overflow switch: Automatic shutoff to prevent condensate leakage and water damage.
  • Loss-of-charge switch: Automatic shutoff to prevent damage to the compressor.
  • Auto-reset high pressure switch: Automatic shutoff if ambient conditions exceed system parameters—automatically resets when conditions return to normal to minimize system downtime without requiring a manual reset.

Wine Guardian has provided us with an excellent product and great customer service. I would be happy to refer them to anyone.
Heritage Vine Inc.
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Through-the-Wall Cooling Units System Specifications

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Model Capacity Length Width Height Electrical (V/ph/Hz) Weight Line Frequency

TTW01B Classic

1440 BTU/h @ 75 ºF (24 ºC). If you have different condensing side conditions, check our spec sheet for performance.

25.8"

14.1"

15.75"

120/1/60

58 lbs

60 Hz

TTW01B Sentinel

1440 BTU/h @ 75 ºF (24 ºC). If you have different condensing side conditions, check our spec sheet for performance.

27.6"

14.1"

15.75"

120/1/60

58 lbs

60 Hz

TTW01B

1440 BTU/h @ 75 ºF (24 ºC). If you have different condensing side conditions, check our spec sheet for performance.

33.8"

14.1"

15.75"

120/1/60

65 lbs

60 Hz

TTW02B Classic

2,650 BTU/h @ 75ºF (24ºC). If you have different condensing side conditions, check our spec sheet for performance.

25.8"

14.1"

15.75"

120/1/60

64 lbs

60 Hz

TTW02B Sentinel

2,650 BTU/h @ 75 ºF (24 ºC). If you have different condensing side conditions, check our spec sheet for performance.

27.6"

14.1"

15.75"

120/1/60

64 lbs

60 Hz

TTW02B Defender

2650 BTU/h @ 75 ºF (24 ºC). If you have different condensing side conditions, check our spec sheet for performance.

33.8"

14.1"

15.75"

120/1/60

65 lbs

60 Hz

TTW04B Classic

3,760 BTU/h @ 75 ºF (24 ºC). If you have different condensing side conditions, check our spec sheet for performance.

25.8"

14.1"

15.75"

120/1/60

71 lbs

60 Hz

TTW04B Classic

3,760 BTU/h @ 75 ºF (24 ºC). If you have different condensing side conditions, check our spec sheet for performance.

27.6"

14.1"

15.75"

120/1/60

71 lbs

60 Hz

TTW01 Classic

0.422 kW @ 24ºC. If you have different condensing side conditions, check our spec sheet for performance.

66 cm

36 cm

40 cm

240/1/50

26.3 kg

50 Hz

TTW01 Sentinel

0.422 kW @ 24ºC. If you have different condensing side conditions, check our spec sheet for performance.

70 cm

36 cm

40 cm

240/1/50

26.3 kg

50 Hz

TTW01

0.422 kW to 0.258 kW

86 cm

36 cm

40 cm

240/1/50

29.5 kg

50 Hz

TTW02 Classic

0.776 kW @ 24ºC. If you have different condensing side conditions, check our spec sheet for performance.

66 cm

36 cm

40 cm

240/1/50

29 kg

50 Hz

TTW02 Sentinel

0.776 kW @ 24ºC (75ºF). If you have different condensing side conditions, check our spec sheet for performance.

70 cm

36 cm

40 cm

240/1/50

29 kg

50 Hz

TTW04 Classic

1.101 kW @ 24ºC. If you have different condensing side conditions, check our spec sheet for performance.

66 cm

36 cm

40 cm

240/1/50

32.2 kg

50 Hz

TTW01

0.776 kW to 0.419 kW

86 cm

36 cm

40 cm

240/1/50

32.3 kg

50 Hz

TTW04 Sentinel

1.101 kW @ 24ºC. If you have different condensing side conditions, check our spec sheet for performance.

70 cm

36 cm

40 cm

240/1/50

32.2 kg

50 Hz

Cooling capacity rated at 80°F(27°C) ambient. Many variables affect proper unit sizing, including type of construction, insulation values, amount of glass, residential vs. commercial applications, etc. Proper wine cellar cooling units size should only be determined by using the Wine Guardian sizing calculations.

 

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