3-1/2 HP walk-in freezer refrigeration system
4 current R-448A condensing units at 3-1/2 HP, rated 11,140 BTU/h at 95°F ambient, with the 9 unit coolers matched to that capacity. Sized for a walk-in freezer holding 0°F to -10°F.
3-1/2 HP R-448A condensing units
R-448A is the current refrigerant for this class. R-448A is a non-flammable A1 blend and the direct replacement for R-404A.
| Model | Series | Siting | Compressor | BTU/h @ 90°F | BTU/h @ 95°F | Electrical | D × W × H | Weight |
|---|---|---|---|---|---|---|---|---|
| WBO350L4SDA | Preassembled Remote | Indoor / Outdoor | Scroll | 11,490 | 11,140 | 208-230 · 1-ph | 28.25 × 39.875 × 21.25″ | 255 lb |
| WBO350L4SEA | Preassembled Remote | Indoor / Outdoor | Scroll | 11,490 | 11,140 | 208-230 · 3-ph | 28.25 × 39.875 × 21.25″ | 255 lb |
| WFO350L4SDA | Preassembled Remote | Outdoor | Scroll | 11,490 | 11,140 | 208-230 · 1-ph | 28.25 × 39.875 × 21.25″ | 255 lb |
| WFO350L4SEA | Preassembled Remote | Outdoor | Scroll | 11,490 | 11,140 | 208-230 · 3-ph | 28.25 × 39.875 × 21.25″ | 255 lb |
Ratings are the manufacturer’s published capacities at -20°F suction for the ambient shown. A dash means the figure is not published for that model — call 954-237-6753 and we will confirm it.
Evaporators used with this system
These are the R-448A low-temperature unit coolers used with a 3-1/2 HP condensing unit. The evaporator is what decides the room: a low-temperature coil makes it a freezer, a medium-temperature coil makes it a cooler.
| Model | Series | BTU/h | CFM | Fans | Defrost | Voltage | L × W × H |
|---|---|---|---|---|---|---|---|
| WE6E089DDS | Center Mount Ultra Low Profile Unit Cooler | 10,300 | 1,144 | 2 | Electric | 208-230 | 52 × 28.375 × 11.25″ |
| WE6E108DDS | Center Mount Ultra Low Profile Unit Cooler | 12,400 | 1,806 | 3 | Electric | 208-230 | 72 × 28.375 × 11.25″ |
| WE6E125DDS | Center Mount Ultra Low Profile Unit Cooler | 14,300 | 1,716 | 3 | Electric | 208-230 | 72 × 28.375 × 11.25″ |
| WE6E137DDS | Center Mount Ultra Low Profile Unit Cooler | 15,400 | 2,408 | 4 | Electric | 208-230 | 92 × 28.375 × 11.25″ |
| WL6E090DDAS | Low Profile Walk-In Unit Cooler | 10,600 | 1,550 | 2 | Electric | 208-230 | 43.625 × 15.5 × 18.125″ |
| WL6E105DDAS | Low Profile Walk-In Unit Cooler | 12,400 | 1,550 | 2 | Electric | 208-230 | 43.625 × 15.5 × 18.125″ |
| WL6E121DDAS | Low Profile Walk-In Unit Cooler | 14,200 | 2,355 | 3 | Electric | 208-230 | 60.125 × 15.5 × 18.125″ |
| ASLE45094DDS | Slim-Temp Reach-In Display Case Unit Cooler | 10,100 | 1,900 | 4 | Electric | 208-230 | 93 × 19.8125 × 9.1875″ |
| ASLE55117DDS | Slim-Temp Reach-In Display Case Unit Cooler | 12,600 | 2,375 | 5 | Electric | 208-230 | 116 × 19.8125 × 9.1875″ |
Grouped by published capacity against this horsepower class. Note that the two ratings are published at different conditions — the condensing unit at the ambient and suction temperature shown above, the unit cooler at its rated temperature difference — so the BTU figures are not meant to be read against each other one for one. On low-temperature systems the coil is deliberately sized for a small temperature difference, so its rating normally reads higher than the condensing unit’s. The final evaporator for your job depends on the box size, the door traffic, the product going in and the ambient around it — we do that calculation for you before anything is quoted. Call 954-237-6753.
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Condensing units are UL and cUL listed for indoor or outdoor use. Unit coolers are UL and cUL listed, NSF approved for use in food preparation areas, and AWEF certified for walk-in coolers and freezers in boxes under 3,000 sq. ft.