US Cellar Systems

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Wine Cellar Refrigeration Solutions For the Trade Menu

Wine Cellar Refrigeration Systems – Dual Air Quiet Cooling Units (DQ Series)

The Dual-Air Quiet (DQ Series) wine cellar refrigeration systems are cooling units designed to provide refrigerated air to 55-65 °F. DQ evaporators return air at the bottom and supply two-way air discharge 10-12 feet in both directions at a medium velocity airflow. This design promotes fantastic circulation in long and narrow display cases.

These units are the perfect solution for large wine cabinets and walk-in wine cellars. DQ evaporators are available in standard capacities from 1,800 to 4,600 BTU per hour. Contractors use them with a R134a refrigerant.

Large Wine Cabinet &Cellar Cooler Series High Performance Quiet Design

Wine Cooling Unit Features

  • Air defrosting coil does not require an additional heater.
  • Fan blades engineer for very low-noise.
  • Staggered high-performance coils with copper tubing expanded mechanically into aluminum fins.
  • Housing constructed of insulated rust-proof aluminum.
  • Permanently lubricated motor is fully thermally protected.
  • Automatic expansion valve(standard) ensures constant coil temperature to promote “Humidity Balance.”
  • Pump-down solenoid valve (standard) protects compressor in the event of leaks.

Mounting Diagrams

Question? Click here to get help with the DQSeries Large Wine Cabinet & Wine Cooling  Wine Cellar Cooling SeriesQuestion? Click here for assistancewith the DQSeries Large Wine Cabinet & Wine Cooling  Wine Cellar CoolingSystems
Question? Click here for assistance with the DQSeries Wine Cabinet & Wine Refrigeration SeriesQuestion? Click here for assistance with the DQSeries Wine Cabinet & Wine Cellar Refrigeration Series

Condensing Units Wiring

Question? Click here for assistance with the DQSeries Wine Cabinet & Custom Wine Cellar Refrigeration Series

Fan Coil Wiring

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Field Wiring

L1115V Line Voltage

NNeutral

SVSolenoid Valve

FMFan Motor

TPTemperature Probe

Back to Controller Connections

10Temperature Probe

11Temperature Probe

4Neutral

5115V Line Voltage

2Jumper from 5

3Switch Leg to Fan Coil

C NOInternal normally open contact

DQ Cooling System Typical Installation

  • Keep line sets as short as possible.
  • An excessive number of turns will cause refrigerant flow problems. This action could cause early compressor failure. We recommend suction line accumulators. They’re required if working lower than the standard 55-65° operating range from the wine cellar.
  • Drain line must always flow downhill to drain or pump.
  • A pump controls the system down control system. There is no control wiring between the thermostat and condensing unit.
  • The line connections at Fan Coil and Condensing Unit may not be the same as the required line sizes.
  • Standard line sets should be 50′ or less. Extended runs may require larger line sizes. Add 3 oz. oil for every 10′ over 35′.
Question? Click here for assistance with the DQ Series Wine Cabinet & Wine Room Refrigeration  Series
Question? Click here for assistance with the DQ Series Wine Room Refrigeration Units
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Call +1 (562) 513-3017 & ask for Systems Design

US Cellar’s Wine Cellar Refrigeration Units come in different designs which are appropriate for varying applications such as Wine Cabinets, Commercial Wine Cellars and Wall or Ducted Cooling Systems. To make it easier to understand the use cases each Cooling Unit is designed for, we have organized them into the categories below for your convenience.