Product Overview
Wine Guardian SP50 Pro: Quick Decision Summary
Choose the SP50 Pro when a mid-size wine cellar needs concealed ducted airflow but the condenser should be located remotely from the evaporator. This split configuration helps reduce noise and vibration near the cellar while giving the installer more flexibility in heat-rejection placement.
| Best For |
Residential wine cellars, glass wine walls, restaurants, tasting rooms, private wine collections, and commercial wine-storage facilities.
|
| System Type |
Ducted split wine cellar cooling system.
|
| Recommended Cellar Size |
Approximately 650–3,000 cubic feet according to the supplied product content.
|
| Temperature Range |
52°F–70°F.
|
| Humidity Compatibility |
Approximately 55%–65% RH with optional integrated or freestanding humidification.
|
| Professional Installation |
Required.
|
Things to Know Before Ordering
- The SP50 Pro is a ducted split system.
- The evaporator and condenser are installed separately.
- The supplied cellar-size range is approximately 650–3,000 cubic feet.
- Published maximum total cooling capacity is 6,458 BTU/h.
- Published evaporator airflow is 410 CFM at low speed.
- Published condenser airflow is 375 CFM.
- The evaporator requires 115V / 1 Phase power.
- The condenser requires 208–230V / 1 Phase power.
- The control circuit uses 24V.
- Optional electric heat, humidification, monitoring sensors, duct kits, and extended warranty coverage are available.
- A professional heat-load calculation should be completed before purchase.
For smaller applications, compare the SP25 Pro. For larger or more demanding installations, review the SP88 Pro or SP200 Pro.
Key Features
Key Features of the Wine Guardian SP50 Pro
Quiet Split-System Operation
The SP50 Pro separates the evaporator from the condensing unit. Moving the compressor away from the wine room helps reduce noise and vibration inside the cellar.
Fully Ducted Installation
Conditioned air is distributed through insulated supply and return ductwork, allowing the evaporator equipment to remain hidden from the finished cellar.
Precise Wine Storage Temperature Control
The supplied content identifies an operating range between 52°F and 70°F.
Optional Humidity Control
The SP50 Pro supports integrated or freestanding humidifiers for projects requiring approximately 55%–65% relative humidity.
24-Volt Smart Control Integration
The cooling system supports 24-volt thermostat controls and is identified as compatible with many home-automation and building-management systems.
Durable Construction
The supplied content identifies:
- Aluminum chassis construction
- UL-rated composite panels
- Powder-coated corrosion-resistant components
- Coated evaporator and condenser coils
Service-Friendly Design
Maintenance and installation access are supported through:
- Accessible service panels
- Refrigerant service ports
- Sight glass for inspection
- Removable condensate drip pad
Buyer Fit
Who Is the Wine Guardian SP50 Pro Best For?
Residential Wine Cellars
The SP50 Pro is positioned for mid-size residential wine rooms where split-system flexibility and hidden ducted airflow are important.
Luxury Glass Wine Walls
Glass-heavy projects can use the SP50 Pro when the calculated heat load falls within its published capacity range.
Restaurant Wine Storage Rooms
Restaurant installations can benefit from remotely located condenser equipment and quieter operation near customer-facing spaces.
Wine Tasting Rooms
The split configuration helps keep compressor noise away from tasting and entertaining areas.
Private Wine Collections
Custom residential storage spaces can use the SP50 Pro where equipment should remain visually discreet.
Commercial Wine Storage Facilities
Commercial applications can use the SP50 Pro when the heat load and cellar volume fit within the supplied performance range.
When the SP50 Pro Is Not the Right Choice
- Do not select it solely from cubic footage.
- Do not use it where suitable duct routing cannot be provided.
- Do not proceed without a suitable remote condenser location.
- Do not install it without qualified HVAC-R support.
- Consider the SP25 Pro when the calculated load is substantially lower.
- Consider the SP88 Pro or SP200 Pro when additional cooling capacity is required.
Model Comparison
SP50 Pro Compared With Other Split Pro Models
| Model |
Recommended Cellar Volume in Supplied Content |
| SP25 Pro |
Up to approximately 1,500 cu. ft. |
| SP50 Pro |
Approximately 650–3,000 cu. ft. |
| SP88 Pro |
Approximately 2,500–6,000 cu. ft. in this supplied comparison |
| SP200 Pro |
Large residential or commercial cellars |
Use the Supplied Model Ranges as General Guidance
Proper system sizing should always be confirmed with a heat-load calculation. Insulation, glass exposure, ambient conditions, lighting, vapor control, duct design, and condenser conditions can materially change the required capacity.
System Operation
How the SP50 Pro Ducted Split System Works
1. Warm Cellar Air Returns Through Ductwork
Warm air from the wine cellar travels through the return duct to the evaporator section.
2. The Evaporator Removes Heat
The evaporator coil absorbs heat from the cellar air.
3. Conditioned Air Returns to the Cellar
The evaporator fan sends cooled air through insulated supply ductwork back into the wine room.
4. Refrigerant Transfers Heat to the Remote Condenser
The refrigeration circuit carries the absorbed heat away from the evaporator to the separate condensing unit.
5. The Condenser Rejects Heat Away From the Wine Room
The remote condensing unit releases heat at its separate installation location, helping reduce heat, noise, and vibration near the cellar.
Why the Split Configuration Matters
The SP50 Pro allows the heat-rejection equipment to be located farther from the cellar than a self-contained ducted system, giving the installer more flexibility when planning mechanical space.
Airflow
Evaporator and Condenser Airflow
Evaporator Section
| Rated Airflow — Low Speed |
410 CFM |
| Fan Motor Power |
115 Watts |
Condensing Unit
| Rated Airflow |
375 CFM |
| Fan Motor Power |
75 Watts |
Maintain Clear Duct Airflow
The duct system should be designed to avoid unnecessary airflow restriction through the evaporator.
Airflow Planning
Restrictive ductwork, excessive bends, blocked grilles, or poor air distribution can reduce system performance even when the nominal cellar volume falls within the supplied range.
Installation
Installation Requirements and Planning Considerations
Qualified HVAC-R Installation Is Required
The supplied content states that the SP50 Pro must be installed by a qualified HVAC-R technician.
Install a Refrigerant Line Set
The separate evaporator and condenser must be connected with a properly installed refrigerant line set.
Provide Insulated Supply and Return Ductwork
The evaporator connects to the wine cellar through insulated supply and return ducts.
Provide Dedicated Electrical Circuits
The evaporator and condenser have separate electrical requirements.
Provide Condensate Drainage
The evaporator includes a 0.5-inch condensate drain connection that must be routed correctly.
Install Temperature-Control Wiring
The supplied system uses 24-volt control wiring for thermostat and compatible automation integration.
Complete a Heat-Load Calculation
A professional heat-load calculation should be completed before installation to confirm that the SP50 Pro is correctly sized.
Installation Warning
Do not finalize equipment selection or construction until refrigerant routing, duct design, condenser placement, electrical service, drainage, control wiring, insulation, vapor barrier, and cooling load have been confirmed.
Specifications
Wine Guardian SP50 Pro Technical Specifications
System Overview
| Brand |
Wine Guardian |
| Model |
SP50 Pro |
| Series |
Sentinel Pro Series |
| System Type |
Ducted Split Wine Cellar Cooling System |
| Recommended Cellar Size |
Approximately 650–3,000 cubic feet |
| Maximum Published Total Capacity |
6,458 BTU/h |
| Temperature Range |
52°F–70°F |
| Humidity Compatibility |
Approximately 55%–65% RH with optional humidifier |
| Professional Installation |
Required |
Evaporator Specifications
| Rated Airflow — Low Speed |
410 CFM |
| Fan Motor Power |
115 Watts |
| Controls |
24-Volt Thermostat Compatible |
| Optional Electric Heat |
1,000 W |
| Optional Humidifier |
Available |
| Cabinet Construction |
Aluminum chassis with composite panels |
| Cabinet Finish |
Powder-coated PVC acrylic blend |
| Weight |
54 lb |
Evaporator Dimensions
| Length |
23.8 in. |
| Width |
25.0 in. |
| Height |
19.7 in. |
| Condensate Drain |
0.5 in. |
Condensing Unit Specifications
| Nominal Compressor Amps |
4.8 |
| Fan Motor Power |
75 Watts |
| Rated Airflow |
375 CFM |
| Enclosure |
Aluminum |
| Finish |
Anodized |
| Weight |
76 lb |
Condenser Dimensions
| Length |
34 in. |
| Width |
12.3 in. |
| Height |
26.1 in. |
Electrical Requirements
| Component |
Voltage |
Phase |
| Evaporator |
115V |
1 Phase |
| Condenser |
208–230V |
1 Phase |
| Control Voltage |
24V |
— |
Maintenance
Recommended Maintenance
Routine maintenance helps support reliable operation and long equipment life.
| Maintenance Task |
Frequency |
| Replace air filters |
Every 6 months |
| Inspect evaporator and condenser coils |
Annually |
| Check refrigerant levels |
During HVAC service |
| Inspect duct connections |
Annually |
| Verify temperature and humidity |
Regularly |
Professional Service
The supplied content recommends professional servicing at least once per year.
Optional Add-Ons
Optional Accessories
Electric Heat Kit
An optional electric heat kit is available where cellar temperatures may fall below the desired setpoint.
Integrated or Freestanding Humidifiers
Optional humidification can support approximately 55%–65% relative humidity where active humidity management is needed.
Wireless2Base™ Monitoring Sensors
Additional sensors can expand system monitoring capabilities.
Remote Temperature Monitoring Systems
Remote monitoring accessories can provide additional visibility into cellar conditions.
Duct Kits and Grille Assemblies
Optional air-distribution components can support the final duct-system design.
Extended Warranty Coverage
Extended warranty coverage is listed as an available option. Confirm current terms and eligibility before purchase.
Accessory Selection
Choose accessories according to the actual cellar environment and mechanical design. Do not assume every project requires heating, humidification, remote monitoring, or accessory duct components.
Downloads
Brochures, Manuals, Specifications, Warranty, and CAD Drawings
Questions & Answers
Frequently Asked Questions
What size wine cellar is the Wine Guardian SP50 Pro designed for?
The supplied product content positions the SP50 Pro for wine cellars between approximately 650 and 3,000 cubic feet. Final selection should be based on a professional heat-load calculation.
What is the maximum cooling capacity of the SP50 Pro?
The supplied performance table lists total cooling capacity up to 6,458 BTU/h at a 60°F condenser inlet temperature.
Is the SP50 Pro a split system?
Yes. The evaporator and condensing unit are separate components connected by a refrigerant line set.
Does the SP50 Pro require ductwork?
Yes. The evaporator delivers conditioned air through insulated supply and return ductwork.
What temperature range does the SP50 Pro support?
The supplied product content identifies a temperature range of 52°F–70°F.
Can the SP50 Pro provide humidity control?
Yes. Optional integrated or freestanding humidifiers can support approximately 55%–65% relative humidity.
What electrical service does the SP50 Pro require?
The supplied specifications list 115V single-phase power for the evaporator, 208–230V single-phase power for the condenser, and 24V controls.
How much airflow does the SP50 Pro provide?
The supplied specifications list 410 CFM evaporator airflow at low speed and 375 CFM condenser airflow.
When should I choose the SP88 Pro instead?
Choose the SP88 Pro when the calculated cooling load exceeds SP50 Pro capacity. Final selection should be based on the actual cellar heat load rather than room volume alone.
How often should the SP50 Pro be serviced?
The supplied content recommends professional servicing at least once per year, with filter replacement every six months and regular monitoring of temperature and humidity.
Important Product Guidance
Use the SP50 Pro for Mid-Size Cellars That Need Ducted Airflow and a Remote Condenser
The SP50 Pro is best suited to residential and commercial projects where concealed ducted cooling is required but the condenser should be located remotely to reduce heat, noise, and vibration near the wine cellar.
Verify current manufacturer specifications, refrigerant requirements, duct design, condenser placement, electrical service, accessory compatibility, maintenance requirements, installation instructions, and warranty documentation before ordering. Final system sizing should be based on a project-specific heat-load calculation.
