Negative Monoblocks
Negative monoblocks are single-piece refrigeration units fitted to walk-in freezer rooms, combining compressor, condenser and evaporator in one housing — a straightforward, low-maintenance freezer engine for dark kitchens, wholesalers, butchers and hotel back-of-house freezer rooms that don’t need a split remote system.
Key specifications
Units hold -18 to -22°C, sized by cooling capacity against room volume. Refrigerant is commonly R404A, with lower-GWP R448A/R449A on newer models, and power is three-phase or single-phase depending on unit size.
Negative Monoblocks — FAQs
What’s the difference between a monoblock and a split refrigeration unit?
A monoblock houses all refrigeration components in a single external unit for simpler installation, while a split system separates the condenser outside from the evaporator inside the room, suiting larger installations or where external unit placement is restricted.
How cold does a negative monoblock need to run?
Negative monoblocks are specified to maintain -18 to -22°C inside the cold room, with recovery capacity to bring temperature back down quickly after frequent door openings during busy service or deliveries.