ONAM Cooling Unit

ONAM CW-30W

Built in to Cellar/Ducted Unit. The CW-30W wine cellar cooling systems can be easily concealed within your wine racking.

this unit is designed for residential and commercial applications and easily installed. Requires only a dedicated 110V power supply, a water supply and a drain. The water consumption required when cooling (with a supply of 60F water) is approximately ¼ gallon (1 L) a minute. All ONAM products are designed with the best available components and with the following standard features:

Air return grill is required in the wine cellar near the floor and a supply air grill required near the top. This cooling unit can also be hidden in void racking corners.

The CW-30W can easily be concealed with custom millwork added to conceal the unit providing that return & supply air grill are included. A remote electronic thermostat with digital display is included with the unit.

ONAM CW-30W Ducting Kit

CW-30W wine cellar cooling system ducting kit includes on right angle boot, a small length of 6″ flexible ducting and 2 ring clamps. The flexible ducting is attached to a flange on top of the cooling unit and the supply air boot is installed high in the room.

All ONAM products are designed with the best available components and with the following standard features.

+ Powerful: Can cool a properly insulated space (R20) as large as 2000 cubic feet.

+ Refrigerant access fittings for easy servicing.

+ Fan: Maintenance free motor, powerful scroll cage blower. (CW-30M &CW-30W)

+ Evaporator with industrial tube thickness and dip-coated to resist pitting failure.(CW-30M & CW-30W)

+ Stainless steel thermal expansion valve automatically regulates refrigerant according to the load for efficient operation and minimized dehumidification.

+ Embossed aluminum casing; double walled construction.

+ Insulation for high efficiency and quiet operation.

+ Condensate pump for installations without a gravity drain.

+ Pressure activated water valve automatically regulates water flow (0-100%) for high efficiency and water conservation.

+ Cupro-nickle coaxial condenser for efficient heat transfer and a high resistance to a failure from a chlorinated water supply.

+ Sight glass for accurate charging and troubleshooting.

+ Removable access panels for easy servicing.

+ Hermetic compressor with internal-external vibration isolators.

+ High pressure safety control disables unit if operating pressure exceeds preset limit preventing catastrophic compressor failure.

+ Low pressure safety control disables unit if operating pressure exceeds preset limit preventing compressor seizing and likely failure.

+ High temperature safety control disables unit if the compressor cavity exceeds normal operating temperature.

+ Double vibration isolation for quiet operation.

+ 6 foot line cord; no hard wiring required.

+ R134a environmentally friendly refrigerant.

+ Remote electronic thermostatic control for accurate temperature control. Equipped with OFF/ON switch.

Cooling unit measures 12″ D x 17″ W x 40.25″ H and covers Maximum Cubic Footage: 2000 cubic feet.

ONAM CW-30M

Designed for residential or commercial use, ONAM products are completely self-contained and do not require a refrigeration technician for installation.

Since these units do not require air venting, wall openings are not needed if the units are installed within the wine cellar. The elimination of venting requirements offers more flexibility for unit placement, resulting in a more aesthetically pleasing installation.

Depending on the model chosen, the unit is either ducted to an adjacent room or completely contained within the cellar, keeping noise levels to a minimum. They are typically installed at floor level eliminating vibration transmission to your wine collection.

Additionally, ONAM units do not reject heat into adjoining spaces but rather pump the heat into city water. Since city water has a relatively stable temperature, your ONAM cooling unit will always operate at peak efficiency. Water consumption is fully regulated to a minimum, at approximately 1 gallon every 5 minutes.

ONAM CW-30W Ducting Kit

CW-30M wine cellar cooling system ducting kit includes on right angle boot, a small length of 6″ flexible ducting and 2 ring clamps. The flexible ducting is attached to a flange on top of the cooling unit and the supply air boot is installed high in the room.

These units are designed for residential and commercial applications and easily installed. Requires only a dedicated 110V power supply, a water supply and a drain. The water consumption required when cooling (with a supply of 60F water) is approximately ¼ gallon (1 L) a minute. All ONAM products are designed with the best available components and with the following standard features:

  • Powerful: Designed for cellars up to 2000 cubic feet.
  • Refrigerant fittings easy accessing for servicing.
  • Fan: Maintenance free, squirrel cage fan. (ONAM CW-30M & ONAM CW-30W)
  • Evaporator: industrial tube with special dip-coated to resist pitting.
  • Stainless steel thermal expansion valve Automatically regulating the refrigerant, while optimizing humidity.
  • Embossed aluminum casing; double walled construction.
  • Insulation for quiet and efficient operation.
  • Condensate pump included.
  • Pressure activated water valve: water flow is automatically regulated for water conservation.
  • Condenser is Cupro-nickel coaxial, designed to resist failure from a chlorinated water supply.
  • Removable panel –  for easy service.
  • Hermetic (vibration isolating) compressor.
  • High & low pressure safety valve turns off unit if pressure exceeds limits.
  • Safety high temperature controller switches the unit off if the compressor begins to operate at higher than normal temperatures.
  • 6′ plug in power cord; not hard wired
  • R134a – refrigerant.
  • Remote electronic thermostatic control for accurate temperature control. Also Equipped with OFF/ON switch (seems obvious, but other manufacturers do not provide this basic control).
  • Water line kit included – To assist with plumbing installation, the ONAM water-line kit includes three 4′ stainless steel flexible pipes (3/8″comp. x 3/8″comp.).  High Temperature water inlet option also included for environments where inlet temperature may be as high as 95 deg F.

Product image shows AA configuration. The ONAM CW-30M wine cellar cooling systems are placed outside the cellar having its supply and return air ducted to the cellar itself. Therefore, only the two vents are visible within the wine cellar achieving a clean look. The CW-30M does not require outside ventilation.

What is required? Power supply, water supply and condensate drain/built-in pump. A remote electronic thermostat with digital display is included.

Wine cellar cooling capacity:  Approx. 4000 BTU (Net Cooling Capacity with cellar temp 55f & 60% humidity rated air flow of 400 cfm.)

17″ D x 22.5″ W x 24.5″ H with Maximum Cubic Footage: 2000 cubic feet.