
Monoblock Refrigeration System
Compact, all-in-one refrigeration system for small cold storage — fresh and frozen food products.
- 1HP – 5HP
- 380-415V / 3 phase / 50Hz
- R404A / R507A
What The Monoblock Refrigeration System Does
Howcool Monoblock (Box-Type) Refrigeration Units are fully-integrated plug-and-play refrigeration systems for small to medium cold storage rooms. The compressor, condenser, evaporator and electrical control are all pre-assembled in one weatherproof cabinet, dramatically simplifying on-site installation and commissioning.
Widely applied in restaurant walk-ins, supermarket back-of-house chillers, agricultural produce storage, medicine storage, and mobile reefer containers. Available in wall-mounted (straddle type), split type, and through-wall configurations. Capacity ranges from 1HP to 5HP covering storage volumes from 5m³ to 50m³.
Our monoblock refrigeration system is designed with your needs in mind. With an ultra-high COP system and a large evaporation area, it delivers higher evaporative capacity. Solid, thick and durable — high-efficiency cooling that saves up to 20% of energy. An automatic defrosting system further reduces consumption.

Why Buyers Choose This Model
All-in-One Design
Factory pre-charged and tested. Connect power and drain, mount through the cold-room wall — operational within 2 hours.
Imported Compressors
Tecumseh, Copeland or Aspera hermetic compressors. Rated for 24/7 continuous operation, long service life.
Wide Temperature Range
Single models cover 5℃ to -25℃. CFC-free R404A / R507A refrigerants. Electric defrost standard on freezer models.
Where It Is Installed
- Cold storage for fresh food, 20~50m³, 0-8℃
- Cold storage for frozen food, 50~80m³, -18℃~-25℃
- Cold storage for fresh food, 50~80m³, 0-8℃
- Cold storage for frozen food, 50~100m³, -18℃~-25℃
Refrigeration Unit Failure Modes
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.
What Is Included
Standard Features
- Charged with refrigerant
- Fully-enclosed compressor
- Expansion valve throttling system
- High & low pressure automatic safety control
- Automatic defrosting system
- Automatic evaporation system for partial defrosted water
- Intelligent three-phase power protector
- Fully integrated multifunctional temperature control
- Dry filter
- Insulation board between compressor unit and air cooler
- Full internal thread copper tubes on condenser and evaporator
Optional Features
- Automatic switching system (1 in use + 1 standby)
- Internet remote control module
- Monitoring via PC & mobile APP
Technical Data
Values below are the manufacturer's standard range. Anything not listed is confirmed against your heat load calculation before order.
| Power Rating | 1HP – 5HP |
|---|---|
| Temperature Range | -25℃ to +10℃ |
| Application | 20-100m³ cold storage |
| Air Cooler Height | Only 7cm (embedded design) |
| Voltage | 380-415V / 3 phase / 50Hz |
| Refrigerant | R404A / R507A |
| Energy Saving | Up to 20% |
| Cooling Capacity | 0.8 - 4.5 kW |
| Compressor Brand | Tecumseh / Embraco / Bristol |
| Defrost Method | Automatic electric |
| Insulation | Built-in seal, no thermal bridge |
|---|---|
| Noise Level | ≤55 dB(A) |
| Weight | 85 - 220 kg |
| Production Lead Time | 20-30 days after deposit |
| Warranty | 5 years on core components |
| Packing | Wooden case for export, ship-ready |
| Certification | ISO 9001, CE |
| Origin | Beijing, China |
| After-Sales | 24/7 remote support, on-site available |
Monoblock Refrigeration System In Production And On Site




Sectors Using This Equipment

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...
Monoblock Refrigeration System Questions
What capacity range does the Monoblock Refrigeration System cover?
The standard range is 1HP – 5HP. All models are customised to the calculated heat load of your room or line, so send volume, temperature and product type for exact selection.
What temperature range can it hold?
-25℃ to +10℃. Selection depends on the room duty and ambient conditions at your site.
What is the standard power supply?
380-415V / 3 phase / 50Hz as standard, with R404A / R507A refrigerant. Other voltages and frequencies can be quoted on request.
Which compressor brands are used?
Tecumseh / Embraco / Bristol. The brand can be fixed at order if your maintenance team standardises on one.
What is the production lead time?
20-30 days after deposit. Equipment is packed in wooden case for export, ship-ready.
What warranty applies?
5 years on core components, backed by 24/7 remote support. On-site service is available for export projects.
Often Specified Together

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.
Facilities Built With This Equipment Family

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.
Request A Quotation For The Monoblock Refrigeration System
Tell us the room volume, target temperature and product type and we will confirm the model, capacity and delivered price.
