WhisperKOOL Extreme 3500tiR Self-Contained Through-the-Wall Wine Cellar Cooling Unit (with Remote)

WhisperKOOL Extreme 3500tiR Self-Contained Through-the-Wall Wine Cellar Cooling Unit (with Remote)

The WhisperKOOL Extreme 3500tiR Self-Contained Cooling Unit is designed for efficient and reliable cooling of wine cellars up to approximately 800 cubic feet. Built as a through-the-wall system, it offers a straightforward installation process without requiring a licensed HVAC-R technician, making it a practical solution for both residential and light commercial applications.

An upgraded version of the standard “ti” model, the 3500tiR features a remote KDT Plus controller that can be mounted outside the cellar for convenient monitoring and adjustments. This allows users to manage cellar conditions without entering the space, while still maintaining optimal wine storage temperatures around 55°F.

Engineered for performance, the system includes variable-speed fans and a 3-speed fan switch that help regulate airflow and maintain consistent conditions. Its liquid-temperature bottle probe ensures accurate readings by measuring the actual temperature of the wine rather than ambient air, supporting proper preservation.

With flexible installation options and optional ducting configurations, the Extreme 3500tiR offers adaptability for different cellar designs. Its durable construction and advanced monitoring capabilities make it a dependable choice for maintaining long-term wine quality.

Who This Unit Is Designed For

Best For

• Residential wine cellars between 600–800 cu. ft.
• Fully insulated rooms with proper vapor barrier
• Exterior wall installations in warm climates
• Installations requiring remote temperature control
• Projects needing condenser-side ducting flexibility

Not Recommended For

• Cellars larger than 800 cu. ft.
• Glass-heavy or poorly insulated rooms
• Open-concept wine displays
• Mechanical spaces exceeding 110°F intake temperature
• Rooms without a proper vapor barrier

If your cellar exceeds 800 cu. ft., consider the Extreme 5000tiR.

Core Performance Features

• Through-the-Wall Installation
  The 3500tiR is engineered to fit between standard wall studs, allowing direct installation with minimal structural modification when framing is appropriate.
• Variable-Speed Fan System
  The 3-speed fan configuration improves air circulation and temperature stability under varying heat loads. This reduces short cycling and supports long-term system durability.
• High-Temperature Tolerance
  The unit is capable of maintaining a 55°F cellar temperature when condenser intake air reaches up to 110°F. This makes it suitable for installations in garages, mechanical rooms, and hot climate regions—provided adequate ventilation is available.

Remote Platinum Series Digital Controller

• 50-ft. communication cable
• External mounting capability
• Advanced System Protection alerts
• Bottle probe compatibility
• Precise digital temperature adjustment

Remote placement allows temperature monitoring without entering the cellar, reducing environmental disruption.

Liquid-Temperature Measuring Bottle Probe

• Unlike ambient air sensors, the bottle probe measures actual liquid temperature. This produces more stable and accurate wine storage conditions.

Condenser-Side Ducting Capability

• The condenser side can be ducted to redirect hot exhaust air when installation conditions require it.

Ducting components are sold separately. Maximum duct length and airflow resistance must comply with manufacturer specifications to prevent reduced performance.

Technical Specifications – Extreme 3500tiR

*Capacity assumes fully insulated walls and ceiling with proper vapor barrier and minimal glass exposure.

Manuals for WhisperKOOL Extreme 3500tiR Self-Contained:

• Owner's Manual for WhisperKOOL Extreme 3500tiR Self-Contained Cooling Unit (w/ Remote)
• Features & Specification Sheet for WhisperKOOL Extreme 3500tiR Self-Contained Cooling Unit (w/ Remote)
• Warranty Information for WhisperKOOL Extreme 3500tiR Self-Contained Cooling Unit (w/ Remote)
• 24V Thermostat Conversion Kit for WhisperKOOL Extreme 3500tiR Self-Contained Cooling Unit (w/ Remote)

What 3175 BTU Means in Real Terms

At 85°F condenser intake temperature, the 3500tiR delivers approximately 3175 BTU/h of cooling capacity.

This output is appropriate for a sealed 800 cu. ft. cellar with:

• Standard insulation levels
• Minimal glass surfaces
• Limited door cycling
• Controlled ambient conditions

Cellars with significant glass, stone, or high ceilings may require a higher-capacity unit.

Installation Requirements (Critical for Performance)

Proper installation is essential for system reliability.

Minimum recommendations:

• R-19 wall insulation
• R-30 ceiling insulation
• Vapor barrier on warm side of insulation
• Dedicated 20-amp electrical circuit
• Adequate condenser ventilation space
• Gravity drain slope or condensate pump

Failure to meet insulation and ventilation standards may prevent the system from reaching target temperature.

Exterior Wall Installation Guidance

When installing through an exterior wall:

• An exterior grille is strongly recommended to protect against weather exposure.
• Intake temperature must not exceed 110°F.
• Proper flashing and moisture protection must be implemented.

Optional 24V Thermostat Conversion

The 3500tiR supports a 24V thermostat conversion kit for integration with third-party smart thermostats.

Important:

• WhisperKOOL does not provide smart thermostats.
• The factory digital controller and bottle probe are removed when converting.
• Manufacturer support does not extend to third-party thermostat troubleshooting.

When to Consider a Larger Model

Upgrade to the Extreme 5000tiR if:

• Cellar exceeds 800 cu. ft.
• Significant glass exposure exists
• High ceiling height increases volume
• Ambient heat load is elevated

Heat load calculations are recommended prior to final unit selection.

Final Summary

The WhisperKOOL Extreme 3500tiR is engineered for sealed, insulated residential wine cellars up to 800 cubic feet requiring reliable 55°F storage—even in warmer installation environments.

With variable-speed airflow, high-temperature tolerance, remote digital control, and condenser-side ducting flexibility, it is designed for installations where environmental control and reliability are critical.

For larger or glass-heavy cellars, consider stepping up to the Extreme 5000tiR.