Refrigeration Units For Cold Storage From 1HP to 500HP
The refrigeration plant decides whether a cold room holds its set point in August. Howcool builds nine unit types — monoblock, hermetic, semi-hermetic, scroll, water-cooled, screw rack, multi-compressor pack, ammonia and CO2 cascade — so the plant matches the load instead of the catalogue.
- 9 products
- Monoblocks to 500HP screw racks
All 9 Refrigeration Unit Products
Undersized plant runs continuously and still drifts; oversized plant short-cycles and wears out compressors. Both show up as energy cost and product loss.
Monoblock Refrigeration System
Compact, all-in-one refrigeration system for small cold storage — fresh and frozen food products.
Hermetic Condensing Unit
Versatile unit with main control board, temperature control and operation board in one convenient package.
Semi-Hermetic Condensing Unit
Copper tube + aluminum fin air-cooled condenser OR high-efficiency shell-tube water-cooled condenser options.
Multi-Compressor Pack
Multiple compressors in parallel sharing discharge, suction, condenser and receiver for larger cooling capacity.
Screw Compressor Parallel Rack
Screw compressor parallel rack — high-capacity, continuous-duty cooling for industrial cold storage and food processing.
Scroll Outdoor Condensing Unit
Outdoor weather-proof condensing unit with Copeland scroll compressors. Plug-and-play installation for small-to-medium cold rooms.
Ammonia (NH₃) Refrigeration System
Industrial NH₃ refrigeration plant. Best efficiency for large cold storage, ice rinks, and food processing >5000 m³.
CO₂ Cascade / Transcritical System
CO₂ (R744) cascade and transcritical systems for ultra-low-temperature applications. Future-proof, GWP=1 refrigerant.
Water-Cooled Condensing Unit
Water-cooled condensing unit with shell-and-tube condenser. Compact indoor footprint, efficient in high-ambient climates.
Typical Buyers Of This Equipment
- Food processors replacing ageing plant on a live site
- Cold-chain operators adding chambers to an existing warehouse
- EPC buyers specifying a complete refrigeration room for a new build
- Distributors supplying walk-ins and small chillers in export markets
Capacity that collapses in summer
High-ambient compressor selection with condenser heat rejection oversized for the site climate, not for a 35 degree lab rating.
Unplanned downtime
N+1 standby staging on parallel racks and multi-compressor packs keeps the room cold while a compressor is serviced.
Energy bills nobody budgeted
Multi-compressor and screw racks stage capacity to the real load instead of running one large machine at part load.
Where This Equipment Is Installed
Food Processing
Processing lines do not wait. When freezing capacity falls behind the kill floor or the packing line, product queues at ambient...
Fruit and Vegetable
Fruit keeps respiring after harvest. Temperature slows it down; controlled atmosphere nearly stops it. The difference between the...
Cold Chain Logistics
A distribution cold store is judged on pallet movements, not on storage volume. Dock design, door speed and racking layout decide...
Pharmaceutical and Biotech
In pharmaceutical storage the temperature record is part of the product. A chamber that held its set point but cannot prove it...
Industrial and Special
Some cold rooms are not about food at all. Lithium battery storage, nuclear plant supplies, laboratory reagents and industrial...
Export and International EPC
An exported cold store has to survive the climate it lands in, the power supply it is given, and the customs process it passes...
Projects Using This Equipment
2,000-ton Food Cold Storage Project
Hanbell screw parallel unit + PLC automation. 100mm PU panels with 40±2 kg/m³ density.
49,500m³ Food Cold Storage Solution
Large-scale multi-zone food cold storage. Turn-key design-build.
1,643 m² Controlled-Atmosphere Cold Storage
1,643 m²/5,749 m³ CA cold storage with 6 partitioned rooms and Hanbell screw parallel refrigeration system.
Refrigeration Unit Questions
How do I choose between a monoblock, a condensing unit and a parallel rack?
Volume decides. Monoblocks cover roughly 5-50 m3 in one pre-charged box. Hermetic and semi-hermetic condensing units cover 20-600 m3 from 2HP to 50HP. Above that, multi-compressor packs (50-500HP) and screw racks stage capacity across several compressors with standby.
Which compressor brands do you use?
Bitzer, Emerson, Copeland, Refcomp, Frascold, Hanbell, Tecumseh and Bristol, depending on unit type and capacity. Brand can be specified at order.
Do you supply ammonia and CO2 systems?
Yes. Ammonia (NH3) plant is used on large industrial freezers, and CO2 cascade or transcritical systems are available where refrigerant regulations or low-temperature duty call for them.
What is included with a unit?
Units ship pre-charged where applicable, with the electrical control components listed on each product page, packed in export wooden cases, with a 5-year warranty on core components.
Get A Selection For Your Room
Send dimensions, temperature and product type and we will come back with the model, the capacity and the price.