WhisperKOOL Quantum Twin 18000 Ducted Split System 220V High Efficiency

High-Capacity Fully Ducted Wine Cellar Cooling System (Up to 5,000 cu. ft.)

The WhisperKOOL Quantum Twin 18000 is a commercial-grade, fully ducted split wine cellar cooling system designed for large residential and commercial wine cellars up to approximately 5,000 cubic feet, when the cellar is fully insulated and sealed with a proper vapor barrier.

This 220V high-efficiency system is engineered for projects requiring:

• Quiet cellar operation (remote equipment placement)
• High heat-load tolerance (glass, lighting, warm climates)
• Long duct runs and extended line sets
• Extreme ambient temperature operation (-20°F to 120°F)

Professional HVAC-R installation is required.

Other Sizes: WhisperKOOL Quantum SS9000 220V High-Efficiency Condenser for 3000 cu.ft wine cellar. WhisperKOOL Quantum SS12000 Ducted Split System 220V High Efficiency for 4000 cu.ft wine cellar. WhisperKOOL Quantum Twin 24000 Ducted Split System 220V High Efficiency for 7500 cu.ft wine cellar.

Is This the Right Cooling System for Your Cellar?

The Quantum Twin 18000 is appropriate if:

• Your cellar is between 3,500–5,000 cu. ft.
• Walls and ceiling meet minimum insulation standards (R19 walls / R30 ceiling recommended)
• A continuous 6-mil vapor barrier is installed
• You require fully ducted installation to conceal equipment
• The condenser may be installed remotely (up to 100 ft line set)
• You operate in climates with significant seasonal temperature swings

When This System Is NOT Recommended

This system may be inappropriate if:

• Your cellar is under 3,000 cu. ft.
• Insulation or vapor barrier is incomplete
• The room contains excessive unconditioned glass without load calculation
• Electrical infrastructure cannot support dual dedicated circuits
• Installation will not be performed by a licensed HVAC-R technician

An undersized or improperly installed unit may:

• Fail to maintain 55°F
• Run continuously
• Shorten compressor lifespan
• Void manufacturer warranty

Heat load calculations are strongly recommended prior to selection.

Cooling Performance & Capacity

Cooling output varies based on condenser intake temperature.

Rated Capacity (Per System)

At 60°F condenser intake:

• Sensible: 15,513 BTU/h
• Total: 18,250 BTU/h

At 75°F condenser intake:

• Sensible: 14,582 BTU/h
• Total: 17,155 BTU/h

At 85°F condenser intake:

• Sensible: 13,806 BTU/h
• Total: 16,243 BTU/h

BTU output decreases as condenser intake temperature increases. Always size your system based on the highest expected ambient temperature at the condenser location.

Operational Range

• Maintains cellar temperatures down to 55°F
• Operates with condenser intake temperatures up to 120°F
• Functions in ambient conditions as low as -20°F (with proper configuration)

Electrical Requirements (Dual-Voltage System)

⚠ This system requires two dedicated circuits:

• Evaporator: 120V (15-amp dedicated circuit required)
• Condenser: 220V (15-amp dedicated circuit required)

Improper electrical configuration voids warranty.

Installation & Ducting Requirements

• Fully ducted configuration
• 14” Supply duct
• 14” Return duct
• Up to 35 ft per duct run
• Maximum 100 ft line set between evaporator and condenser
• Line set not included
• Licensed HVAC-R installation mandatory

Improper duct sizing or excessive static pressure will reduce cooling efficiency.

System Components & Technical Specifications

Cellar Capacity: Up to 5,000 cu. ft.*

Refrigerant: R-134a

Compressor: 2 HP commercial-grade

CFM (Per Evaporator):

• 590 (low speed)
• 650 (medium speed)
• 710 (high speed)

Noise Level:

• 58 dBA (Evaporator)
• 58 dBA (Condenser)

Dimensions:

• Evaporator: 29.5”L x 30.9”W x 19.8”H
• Condenser: 31.18”L x 10.75”W x 23.25”H

Weight:

• Evaporator: 96 lbs
• Condenser: 116 lbs

Amps:

• Evaporator: 9.2 (Running Amps)
• Condenser: LRA 37, RLA 6.5, FLA 7.56

Line Set:

• Liquid: 3/8” OD
• Suction: 5/8” OD (less than 50 ft)
• 3/4” (greater than 50 ft)

Drain Line: 3/4” ID CPVC

Thermostat & Control:

• Advanced digital touch display (50 ft cable)
• Liquid temperature measuring bottle probe (50 ft cable)

Warranty:

• 2-Year Limited Warranty
• Up to 1-Year Additional Grace Period for Installation (parts & labor)

*Capacity assumes proper insulation and vapor barrier.

Manuals for WhisperKOOL Quantum Twin 18000 Ducted Split:

• Owner's Manual
• Quick Start Guide
• Warranty Checklist
• 220V H.E Product Sheet
• 220V Copeland Product Sheet
• Maintenance Checklist
• Charge Chart

Optional Upgrades & Accessories

Exterior Condenser Protective Housing

Required for outdoor installations.
Protects condenser from:

• Rain
• Snow
• Salt air
• Debris

24V Thermostat Conversion Kit

Allows use of third-party smart thermostats.

Important:

• Removes standard WhisperKOOL bottle probe
• Smart thermostat not included
• WhisperKOOL does not provide support for third-party thermostats

UV-C Lighting System

Helps reduce microbial buildup inside the evaporator coil housing.

Quantum Twin 18000 vs Quantum Twin 24000

Choose the 18000 if:

• Cellar is under 5,000 cu. ft.
• Moderate heat load
• Primarily residential application

Choose the 24000 if:

• Cellar exceeds 5,000 cu. ft.
• Heavy glass exposure
• Commercial environment
• High ambient condenser temperatures

Final Technical Summary

The WhisperKOOL Quantum Twin 18000 is a high-capacity, fully ducted, dual-voltage split cooling system engineered for large wine cellars requiring quiet operation, high reliability, and stable aging conditions.

Correct sizing, insulation, vapor barrier installation, and professional HVAC configuration are critical to system performance.

For projects approaching or exceeding 5,000 cubic feet, evaluate the Quantum Twin 24000.

24V THERMOSTAT CONVERSION KIT (OPTIONAL)