TTW04B Defender - Through the Wall Wine Cellar Cooling Unit

The Wine Guardian TTW Series offers advanced through-the-wall cooling units designed for wine cellars and wine display applications. Whether you choose the Classic, Sentinel, or Defender model, you’ll benefit from eco-friendly refrigerants, whisper-quiet operation, Bluetooth connectivity, and fail-safe protections that safeguard your wine collection.

The TTW04B Defender is the premium model in the TTW lineup, offering expanded features for demanding applications. With a cooling capacity of 1,000 – 4,000 BTU/h, it is ideal for larger residential or commercial wine cellars requiring ultimate performance, control, and flexibility.

This unit is also easy to install, and can be installed on your own without the support of a contractor.

Although the cooling units are rated for various size rooms, the thermal load may require a larger sized cooling unit. Thermal load may be affected by glass in the cellar, room positioning or other factors. Please let a Rosehill Wine Cellar rep make some suggestions for you if needed.

Wine Guardian Through-the-Wall cooling units offer excellent airflow for your wine cellar, which assists to maintain optimal temperature & humidity — all this with whisper-quiet operation.

The TTW04B Defender is a self-contained, ductless, air-cooled system designed for energy efficiency, reliability, and advanced climate control. With expanded temperature settings (42°F to 75°F), enhanced sound insulation, and an exterior wall package, it is the most versatile and feature-rich option in the TTW Series.

FEATURES of the Through the Wall – TTW04B Defender:

• 1,000 – 4,000 BTU/h cooling capacity
• Expanded cellar temperature range: 42°F (6°C) to 75°F (24°C)
• Ultra Quiet Package with additional sound reduction material
• Exterior Wall Package: exterior grille, coated condenser coil, heater, and 125°F (52°C) max ambient temperature rating
• Electric Heater: integrated heating coil to warm cellar air if temperatures fall below set point
• Smartphone controllable via Bluetooth/NFC and Wi-Fi connectivity (iOS support coming soon)
• Eco-friendly R513A refrigerant with low global warming potential
• Humidity sensor (combined thermostat and humidistat) for seamless humidifier integration
• Integrated condensate evaporator prevents leakage without the need for a drain line
• Fail-safe protections: condensate overflow switch, loss-of-charge switch, auto-reset high pressure switch
• Easy DIY installation — slides through wall sleeve or mounts with bracket system
• Designed and assembled in the USA

What’s Included:

• Humidity Sensor
• Condensate Evaporator
• Ultra Quiet Package
• Exterior Wall Package

• Model TTW04B Defender
• Line Frequency 60 Hz
• Capacity 1,000 – 4,000 BTU/h
• Electrical 120/1/60
• Plug Type B
• Decibel Rating 49 dB
• Installation Level Do-It-Yourself

Large Item Shipping: Additional Shipping charges may be charged for accessory items ordered on their own without the cooling unit. Rosehill Reserves the right to contact you should shipping charges end up substantially higher than advertised on our website.  You will have an opportunity to not complete your order at that time.

For CAD customers - Shipping Charges for importation, brokerage, duties are extra might be extra, however you will be contacted by a Rosehill Customer Service Representative to discuss it further. Local delivery included.

 Wine Guardian warrants, to the original buyer, its goods and all parts thereof to be free from defects in material and workmanship for a period of two (2) years from the date of original invoicing assuming NORMAL USE AND SERVICE.

Standard Wine Guardian Warranty Information
Wine Guardian Extended Warranty Information

Wine Guardian TTW Product Brochure
Wine Guardian TTW Data Sheet