If you have ever commissioned a traditional split-type refrigeration system, you know the drill: schedule a certified refrigeration technician, wait for them to arrive, spend a full day running copper piping, vacuuming the system, charging refrigerant, and then praying there are no leaks. The entire process typically consumes two days or more — and that is before you factor in the cost of specialized labor and equipment.
The Flandcold FE Series monoblock changes everything. Designed as a fully self-contained, wall-mounted unit, it arrives at your site pre-charged with refrigerant from the factory. There are no copper lines to braze, no vacuum pumps to run, and no refrigerant to handle on-site. The result? A complete installation that takes five steps and approximately 90 minutes — no professional refrigeration technician required.
This guide walks you through every step of the process, from unboxing to your first cold-room test run, with specific reference to the FE-010M, FE-015M, FE-020M, and FE-030M models. Whether you are a cold storage contractor, a food processing facility manager, or an agricultural operation owner, you will see exactly how Flandcold's pre-charged monoblock design saves you time, money, and headaches.
The term "pre-charged" means that the refrigerant — R507A for the FE-010M through FE-020M, with R448A also available for the FE-030M — is factory-loaded into the sealed system before the unit leaves Flandcold's 45,000 m² manufacturing facility in Anhui, China. The refrigerant charge ranges from 1.5 kg (FE-010M) up to 2.3 kg (FE-020M), precisely measured for optimal performance across the operating temperature range of -25°C to +10°C.
Traditional split systems require field brazing of copper lines, followed by a nitrogen pressure test, vacuum drying, and manual refrigerant charging. Each of these steps introduces potential failure points:
With a pre-charged monoblock, none of these steps apply. The factory uses automated charging equipment under controlled conditions, pressure-tests every unit, and seals the system before shipment. You simply mount the unit, connect power, and turn it on.
Did You Know? The Flandcold factory performs a 100% pressure test and helium leak detection on every FE Series unit before it ships. This means the refrigerant charge you receive is exactly what was sealed at the factory — guaranteed leak-free.
The installation process is designed to be straightforward enough for a general contractor or facility maintenance team to complete. Below is each step in detail, including the specific opening sizes and hardware required for each FE Series model.
Before anything else, carefully unbox the unit and verify the following:
The wall opening is the most critical dimensional requirement. Getting it right ensures a proper seal and thermal break between the condenser (outside) and evaporator (inside) sections of the monoblock.
| Model | Horsepower | Cooling Capacity (W) | Wall Opening Size | Unit Weight (kg) | Power Supply |
|---|---|---|---|---|---|
| FE-010M | 1 HP | 618–1,451 | 10 × 10 cm | 131 / 136 | 220V / 50Hz |
| FE-015M | 1.5 HP | 1,062–2,492 | 10 × 10 cm | 143 / 148 | 220V / 380V |
| FE-020M | 2 HP | 1,616–3,400 | 10 × 10 cm | 154 / 159 | 220V / 380V |
| FE-030M | 3 HP | 2,006–6,861 | 95 × 55 cm | 239 / 246 | 220V / 380V |
Note the significant difference: the 1–2 HP models require a compact 10 × 10 cm opening, while the 3 HP FE-030M needs a much larger 95 × 55 cm opening due to its greater physical dimensions (969 × 1040 × 905 mm versus 727 × 1139 × 841 mm for the smaller models). Mark the opening location on the wall, ensuring the outside section will have adequate airflow and the inside section will be positioned for optimal cold air circulation.
The monoblock is designed to be inserted from the top downward through the wall opening. This vertical insertion method ensures the unit's weight is distributed evenly and the condenser section naturally hangs on the exterior side while the evaporator section sits flush on the interior side.
Use a forklift, chain hoist, or suitable lifting sling rated for the unit's weight. Guide the unit slowly into position, ensuring the sealing gasket compresses uniformly around the opening. The gasket creates the thermal break that prevents heat transfer between the two sections — do not skip or damage it.
Once the unit is seated in the opening, secure it using the following hardware:
Although the system is pre-charged and factory-sealed, you should always verify integrity after installation:
Important: Do not attempt to open the refrigerant circuit or add refrigerant. The FE Series is a sealed, pre-charged system. If you suspect a refrigerant leak, contact Flandcold's 3,600+ global service network immediately. Opening the system voids the warranty and may violate environmental regulations.
Proper preparation is the key to completing the installation within 90 minutes. Gather all tools and materials before you begin:
Even with a simplified 5-step process, certain mistakes can compromise performance, efficiency, or safety. Here are the most common ones — and how to avoid them:
The opening must match the specification exactly. An opening that is too large creates gaps that compromise the thermal seal; one that is too small makes insertion difficult and can damage the gasket. For the 1–2 HP models, 10 × 10 cm is precise. For the FE-030M, 95 × 55 cm is non-negotiable.
The De32 drain pipe must slope downward continuously. Any flat or uphill section will trap condensate, leading to water accumulation inside the unit, potential mold growth, and even water damage to stored products.
The outdoor (condenser) section needs free airflow to reject heat. Installing the unit in a confined space, against a wall with less than 50 cm clearance, or near heat sources will cause high head pressure, reduced cooling capacity, and premature compressor failure.
Connecting a 380V unit to a 220V supply (or vice versa) will cause immediate damage. Always verify voltage with a multimeter before powering on. For three-phase units, also verify phase rotation — incorrect phase sequence can cause the compressor to run backwards.
Even though the system is pre-charged and sealed, the physical handling during installation can stress fittings. The 30-minute recheck is not optional — it is your assurance that the system is intact and ready for continuous operation.
Warning: Never modify the refrigerant circuit, attempt to recharge the system, or bypass safety controls. The FE Series monoblock is a factory-sealed unit. Any unauthorized opening of the refrigerant system voids the warranty and may violate local environmental regulations regarding R507A and R448A refrigerants. For any refrigerant-related issues, contact Flandcold's authorized service team.
After the 30-minute trial run, perform a more thorough performance check:
Every Flandcold FE Series unit is compatible with the ICOLD cold cloud platform, which provides remote monitoring and control capabilities:
The ICOLD platform is particularly valuable for operators managing multiple cold rooms across different locations. You can monitor all units from a single dashboard, schedule defrost cycles, and receive predictive maintenance alerts before problems escalate.
The choice between a traditional split system and a pre-charged monoblock comes down to a simple question: how much is your time worth? With a split system, you are investing in copper piping, brazing materials, vacuum pumps, refrigerant cylinders, certified technician labor, and at least two days of downtime. With the Flandcold FE Series, you are investing in a unit that is ready to run the moment it is mounted.
The pre-charged design also eliminates the most common failure mode in refrigeration systems: field-introduced leaks. Factory welding under controlled conditions, combined with 100% helium leak testing, produces joints that are orders of magnitude more reliable than anything brazed on-site. When you install a Flandcold monoblock, you are installing a system that has already been tested to perform.
With container loading efficiency of 26 units per 20-foot container and 56 units per 40HQ, Flandcold makes large-scale cold storage projects logistically straightforward. Whether you are building a single cold room or outfitting an entire distribution network, the FE Series delivers consistent performance, simplified logistics, and the fastest installation time in the industry.
Stop spending two days and a technician's bill on every cold room. Switch to Flandcold's pre-charged FE Series monoblock and get cold storage running in 90 minutes.
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