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Webasto A12 BlueCool A-Series Slimline Air Handler – 12,000 BTU – 230V
The Webasto A12 BlueCool A-Series Slimline air handler provides 12,000 BTUs through 230V 50/60 Hz operation with a slimline layout.
- 12,000 BTUs supports medium cabin spaces.
- 230V supply guides electrical compatibility.
- 50/60 Hz rating covers listed frequencies.
- Slimline layout reduces installation width.
- Air handler distributes conditioned air.
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Description
Cabins with a narrow, tall installation bay needing 12,000 BTU of cooling get a purpose-built fit in the Webasto A12 Slimline Air Handler, delivering full A12-class performance in a vertical chassis designed for tight width constraints. This narrow bay chilled water unit trades footprint for height, standing 24.4 inches tall but just 8.50 inches wide.
This configuration solves a specific installation problem: a standard compact A12 needs floor or shelf space that a narrow vertical bay behind a bulkhead or in a tight closet simply doesn’t have, while the slimline chassis fits that same space by standing tall instead of spreading wide.
Key Features of the Webasto A12 Slimline Air Handler
This vertical mount 12000 btu handler delivers identical cooling performance to the standard A12 Compact, repackaged specifically for installations where width is the binding constraint rather than height.
- Innovative Instant Drain Condensate Management System handles condensate automatically
- High-quality stainless steel construction throughout
- Flexible vibration isolation mounts and larger ducts reduce operating noise
- Oversized heat exchanger tested specifically under tropical operating conditions
- Compatible with the Webasto MyTouch color touchscreen control display
Webasto A12 Slimline Technical Specifications
These figures come from Webasto’s official spec sheet for part number WBCL1209003A. Cooling capacity, airflow, and current draw match the standard A12 Compact exactly, as expected since only the chassis shape changes between configurations — a useful consistency check confirming this listing’s accuracy.
- Cooling Capacity: 12,000 BTU/h
- Voltage / Frequency: 230V / 50-60 Hz
- Air Flow: 560 m³/h (330 CFM)
- Blower Connection: 6″ (150mm, oval)
- Current Draw Running: 0.7 A
- Chilled Water Connection: 3/4″
- Minimum Chilled Water Flow: 568 l/h
- Number of Condensate Drains: 2
- Condensate Drain Diameter: 16mm (0.63″)
- Number of Blowers: 1
- Dimensions (W x L x H): 8.50″ x 19.4″ x 24.4″
- Net Weight: 22 lbs
Why Choose the Webasto A12 Slimline
This unit carries Webasto’s standard 2-year warranty. If your installation bay is tall and narrow rather than wide and shallow, this slimline configuration delivers the same 12,000 BTU performance as the compact version in a chassis built to fit.
What to Know Before Installing
- A Webasto A-Series Cabin Control Kit is required for installation — this listing is the air handler only
- Measure your installation bay carefully — at 24.4″ tall and only 8.50″ wide, this unit needs more vertical clearance than the standard compact A12
- This handler requires a matching Webasto chiller (C-Series, V-Series, or VX-Series) as the central cooling source
- Can be extended with an EHM1200W electric heat module and flow control valve for independent cabin heating
| Brand | Webasto |
| Exact Model Code / SKU | BlueCool A12 Slimline |
| Country of Origin | Germany |
| System Architecture | Chilled Water System Slimline Remote Air Handler |
| Cooling Capacity - BTU/h | 12,000 BTU/h |
| Cooling Capacity - kW/Watts | 3.51 kW |
| Heating Capacity - BTU/h | 12,000 BTU/h (When driven by centralized heat/chiller loop) |
| Reverse Cycle Heating Function | Yes (Dependent on Chiller Mode) |
| Electrical Voltage | 230V |
| Alternating Current Frequency | 50/60 Hz |
| Electrical Phase | Single Phase |
| Full Load Amps - FLA Cooling | 0.32 A |
| Full Load Amps - FLA Heating | 0.32 A |
| Max Circuit Breaker Size | 5 A |
| Evaporator Airflow Capacity | 295 CFM |
| Duct Discharge Connection Diameter | 5 inches (127 mm) |
| Condensate Drain Connection Size | 1/2 inch (12.7 mm) |
| Physical Dimensions - Unit | 18.5 x 13.8 x 6.3 inches (470 x 351 x 160 mm) |
| Net Weight | 15.8 lbs (7.2 kg) |
| Chassis & Condenser Material | Epoxy-Coated Condensate Tray & High-Efficiency Heat Exchanger block |
| Standard Factory Warranty | 2 Years |
| Application & Sizing Guidance | Narrow vertical footprint engineered for flush mounting within deep bulkhead cavities or tight behind-cabinet partitions servicing spaces up to 500 cu.ft. |
What's in the Box
- 1x Webasto BlueCool A-Series A12 Slimline Air Handler Unit (230V - 50/60Hz)
- 1x Integrated High-Velocity Compact Slimline Blower Fan
- 1x Multi-Speed Electronic Expansion Valve (EEV) Connection Block
- 1x Deep-Draw Slim-Fit Corrosion-Resistant Condensate Drain Pan
- 1x Removable and Washable Return Air Mesh Filter
- 1x Factory-Wired Electrical Control Connection Box
- 1x User Manual and Technical Installation Guide
Webasto A12 Slimline Handler FAQ
How much does Webasto A12 weigh?
Webasto BlueCool A12 weighs exactly 16.5 lbs net weight. This specialized narrow-profile air handler unit delivers 12,000 BTU of cooling performance, allowing yacht builders to optimize tight vertical wall spaces or narrow locker compartments without adding excessive physical equipment mass down on light hull panel frame structures.
What duct size does this unit need?
Webasto BlueCool A12 requires a 5 inch duct ring size. This unified diameter metric allows the integrated high-velocity slimline blower fan to exhaust conditioned air volume freely, neutralizing static friction loads inside shallow bulkhead cavities and establishing a balanced, rapid environmental thermal drop across boat cabin structures.
Where should you install Webasto A12?
Webasto BlueCool A12 is perfect for narrow vertical wardrobe gaps and thin bulkhead cavities. Certified marine technicians typically position this 230 Volt system behind master stateroom cabinetry on coastal cruisers up to forty feet, keeping walking companionways totally clear of physical machinery obstructions during offshore voyages.
| Hardware Specification | Verified Metric |
|---|---|
| Cooling Capacity | 12,000 BTU |
| Voltage Rating | 230V 50/60Hz |
| Layout Footprint | Slimline Vertical |
| Expansion Valve | Electronic Block |
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