Large Wine Cellar Cooling Units: 2,200 to 4,500 Cubic Feet

Twelve units sit in this group, in two capacity classes. Wine Guardian publishes the 050 class at 650 to 3,000 cubic feet, covering the D050, the water-cooled D050WC, the DS050 and the quote-only Pro DP50, DP50WC and SP50. It publishes the 088 class at 850 to 4,500 cubic feet, covering the D088, the water-cooled D088WC, the DS088 and the quote-only Pro DP88, DP88WC and SP88. Only the 088 class reaches the top of this band. Final sizing should be confirmed with Wine Guardian's official documentation and a licensed HVAC professional or qualified contractor.

Then half this group drops out of the shortlist before anything else is decided. The 050 class is published to 3,000 cubic feet, so a room between 3,000 and 4,500 cubic feet is served only by the 088 class, and a room at 4,500 cubic feet sits at the very top of even that range with no margin left. Rooms at the edge of a band also behave worse than their volume suggests once they carry glass, a warm adjacent space, high ceilings or a door that opens often, so have a licensed HVAC professional or qualified contractor confirm the choice rather than reading the published range alone.

Because bands are assigned by the top of a published range, not its floor. A unit is placed in the group its range reaches, so the 050 class sits here on the strength of its 3,000 cubic foot ceiling even though the same range starts at 650 cubic feet and covers much smaller rooms. Separately, one chassis can appear more than once inside a single group when Wine Guardian sells it in more than one heat-rejection form, which is why the air-cooled and water-cooled versions of both classes are listed here side by side.

The door adds no volume, but it changes what the room needs. Cubic feet are measured on the finished internal space, so a glass door or a glass wall contributes only the space it encloses. What glass does change is how much heat enters, and Wine Guardian's published cubic-foot ranges assume no glass at all. A 4,000 cubic foot cellar behind a large glass wall can therefore need the equipment a solid-walled room of 4,500 cubic feet would take. Enter the glass area as glass in Wine Guardian's cooling calculator, then have a licensed HVAC professional or qualified contractor confirm the result.

The volume is measured the same way, but the load is not. A room open to staff or customers carries door openings through every service hour, display lighting, people working in the room and often a warm back-of-house space on the other side of the wall, and it is expected to hold temperature continuously rather than recover overnight. A room that measures 3,000 or 4,000 cubic feet on volume alone can therefore need equipment from the commercial group once that duty is counted, and the calculation belongs with a licensed HVAC professional or qualified contractor rather than with a volume figure.

Yes, but only from the 088 class. Wine Guardian publishes 850 to 4,500 cubic feet for the D088, the D088WC and the DS088, so a 4,000 cubic foot cellar sits inside that range with a little margin left. The 050 class is published to 3,000 cubic feet and does not cover a 4,000 cubic foot room at all. Which of the three 088 units suits the building depends on where the rejected heat is allowed to go, not on capacity.

Two answers, and they differ in what the building has to supply. The DS088 puts the condensing unit at a remote location, so the heat leaves at that point rather than into any room near the cellar, and it needs a refrigerant line set run between the two positions. The D088WC rejects into a building water loop instead of into air at all, so it needs no remote equipment position but does need a circulating loop with supply and return capacity at the unit. The D088WC is the only unit in this group that reaches 4,500 cubic feet without a condenser sited either indoors or outdoors.

Six of the twelve. The Pro DP50, DP50WC, SP50, DP88, DP88WC and SP88 are quote only and are requested through a price quote rather than added to a cart. The D050, D050WC, DS050, D088, D088WC and DS088 are ordered directly. Which route applies changes nothing about sizing or configuration, only about how the order is placed.