Condensing Unit for Cold Room, Refrigeration Condenser System

Condensing Unit

A Condensing Unit is a component in refrigeration systems that compresses and cools refrigerant, releasing heat outdoors for cooling.

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Efficient energy utilization
Diversity and applicability
Improve air quality and durability
Reduced noise and easy installation

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— Composition Of Condensing Unit —

The Condensing Unit is a key component of refrigeration and air conditioning systems, used to cool high-temperature and high-pressure refrigerant gases into a liquid state. The following are the main components of the condensing machine:

Compressor

The compressor is the core component of the condensing unit responsible for compressing

low-temperature, low-pressure refrigerant gas,

raising its temperature and pressure.

Condenser Coil

The condenser coil is a spiral-shaped tubing system typically located outside the condensing unit. Its purpose is to cool down the high-temperature, high-pressure refrigerant gas, while releasing heat to the surrounding environment.

Air Conditioner Condenser Fan

The condenser fan is usually located on the exterior of the condensing unit. It draws in ambient air and passes it through the condenser coil to expedite the heat dissipation process, allowing the refrigerant to condense more efficiently.

Expansion Valve

The expansion valve is positioned between the condensing unit and the evaporator. Its role is to control the flow of refrigerant, allowing it to move from a high-pressure area to a low-pressure area. This process lowers the refrigerant's temperature in preparation for re-entering the evaporator.

Liquid Line and Suction Line

These are pipes used to transport refrigerant from

the compressor to the condenser and then back to the evaporator. The liquid line carries high-pressure liquid refrigerant to the condenser, while the suction line returns low-pressure gaseous refrigerant to the compressor.

Electrical Control Panel

The condensing unit typically includes an electrical control panel responsible for regulating the operation of the compressor, fan, and other essential components. These controllers start and stop various parts as needed to maintain temperature and pressure.

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— Shape Type Of Condenser —

1.Cold Room H Type Condensing Unit

Differences: Designed for large cold rooms, typically larger in size, offers high cooling capacity, and is stationary.
- Typical Applications: Used in industries with large-scale refrigeration needs such as food processing, pharmaceuticals, and warehouses.
- We ensure the reliability of our units by subjecting them to rigorous testing, including gas tightness and pollution discharge tests at 2.8Mpa pressure. Our units are suitable for use with a variety of refrigerants, including R22, R134a, R404a, R407c, R507a, and more.

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2.Cold Room Box V/W Type Condensing Unit

Differences:Suitable for medium-sized cold rooms, medium-sized in physical dimensions, provides moderate cooling capacity, and is stationary.
- Typical Applications: Commonly used in commercial cold storage, supermarkets, and restaurants where moderate refrigeration is required.
- This system consists of key components like a compressor, condenser, drier filter, solenoid valve, and pressure controller, with optional gas and oil separators, offering flexibility in brand choices. The condensing unit is designed for easy mobility and maintenance. Pressure controllers ensure system safety during breakdowns. It uses various refrigerants (R22, R404A, R507a, R134a) and supports multiple power supply options, including customization for special voltages.

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3.Cold Room Monoblock Condensing Unit

Differences: Designed for small cold rooms, compact and integrated design, offers moderate cooling capacity, and can be installed in mobile applications.
Typical Applications: Used in smaller cold rooms, walk-in freezers, and refrigerated trucks due to its compact and mobile nature.
Temperature range: ambient temperature:-15℃～+48℃, room temperature: -18℃~+10℃.The installation could be done within 20 minutes.Hot gas defrosting: High efficiency and energy saving, complete the defrosting within 3 to 5minutes,compare with electrical heater, energy saving more than 80%.

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4.Cold Room Box L Type Condensing Unit

Differences: Tailored for special-shaped cold rooms, cooling capacity varies based on customization, stationary.
Typical Applications: Ideal for unique spaces where standard condensing units won't fit, such as irregularly shaped storage areas or custom-built cold rooms.
Versatile Refrigerants: Our condensing units support various refrigerants, including R22, R404A, R507a, and R134a, offering versatility in cooling options.
Flexible Power Supply: We provide multiple power supply options, such as 380V/50Hz/3phase, 220V/60Hz/3phase, 440V/60Hz/3 phase, and can customize to meet specific voltage requirements.

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5.Cold Room Box U Type Condensing Unit

Differences: Suited for cooling large surface areas, designed for special-shaped cold rooms, offers high cooling capacity, and is stationary.
Typical Applications: Used in applications with a significant cooling area requirement, such as large cold storage facilities or warehouses with non-standard layouts.
Feature：Box-shaped shell condenser with 80-1600㎡ heat exchange area, suitable for various industries and compressor types. V/W-type condenser, 7 fan blades for low-noise operation. Compressor indoors, condenser outdoors for separation.

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— Process Of Condenser —

Air-Cooled Condensing Unit

Cooling Method: Air-cooled using fans to dissipate heat.
Applications: Suitable for small to medium-sized applications such as commercial refrigeration, walk-in coolers, and some industrial applications. Commonly used in environments with moderate ambient temperatures.

Water-Cooled Condensing Unit

Cooling Method: Uses water for heat dissipation.

Applications: Typically used in large-scale commercial and industrial applications like large refrigeration warehouses, food processing plants, and HVAC systems. Well-suited for high-temperature environments.

Evaporative Condensing Unit

Cooling Method: Utilizes water evaporation for cooling and is more water-efficient.

Applications: Ideal for industrial and commercial facilities where high-efficiency cooling is required, especially in hot climates. Commonly used in large refrigeration systems and data centers.

Screw Compressor Condensing Unit

Compressor Type: Uses a screw compressor known for higher efficiency and capacity.

Applications: Suitable for large-scale industrial refrigeration applications that demand high cooling capacity and energy efficiency, such as cold storage warehouses, food processing, and chemical industries.

Semi-Hermetic or Hermetic Condensing Unit

Compressor Enclosure: Semi-hermetic units have a serviceable compressor, while hermetic units have a sealed compressor that cannot be serviced.
Applications: Typically used in various applications, including small commercial refrigeration, convenience stores, and supermarkets. Semi-hermetic units offer some serviceability and are common in these environments.

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— Capacity —

We have 1.5 ton condenser, 2.5 ton condenser, 3 ton condenser, 3.5 ton condenser, 4 ton condenser, 5 ton condenser.

1.5 ton condenser: This condenser is capable of absorbing or releasing about 18,000 BTUs of heat per hour. Suitable for relatively small air conditioning systems or small refrigeration equipment.

2.5 ton condenser: This condenser is capable of absorbing or releasing about 30,000 BTUs of heat per hour. Suitable for medium sized houses or commercial air conditioning systems.

3 ton condenser: This condenser is capable of absorbing or releasing about 36,000 BTUs of heat per hour. Suitable for medium sized houses or commercial air conditioning systems.

3.5 ton condenser: This condenser is capable of absorbing or releasing about 42,000 BTUs of heat per hour. Suitable for large houses or some commercial air conditioning systems.

4 ton condenser: This condenser is capable of absorbing or releasing about 48,000 BTUs of heat per hour. Usually used in large houses or commercial air conditioning systems.

5 ton condenser: This condenser is capable of absorbing or releasing about 60,000 BTUs of heat per hour. Suitable for large commercial buildings or places requiring strong cooling capacity, such as restaurants, shops, etc.

— Select The Correct Configuration —

Depending on the area of the cold storage, refrigeration needs, and environmental conditions, the cold storage condensing unit with appropriate configuration and power can be selected:

Small Cold Room

Size: Usually less than 100 square meters (about 1,076 square feet).

Condensing unit configuration:

Usually a single condensing unit can be selected, or a single condensing unit with a backup can be considered for emergency use.

Power: Usually 1.5 to 2.5 tons, depending on cooling requirements. The power can be adjusted according to the temperature requirements of the warehouse and the nature of the stored items.

Medium Cold room

Size: Usually between 100 square meters (about 1,076 square feet) and 300 square meters (about 3,229 square feet).
Condensing unit configuration:

A single condensing unit or a single condensing unit with a spare can usually be considered. For large cold stores, multiple condensing units may be required to run in parallel.
Power: Usually 2.5 to 4 tons, the specific capacity to be determined according to the cooling demand and cooling load. Medium-sized cold storage usually requires more cooling capacity.

Large Cold Room

Size: Usually greater than 300 square meters (about 3,229 square feet).

Condensing unit configuration: Large cold stores typically require multiple condensing units to ensure adequate cooling capacity. Backup condensing units may also be necessary in case of equipment failure or maintenance.
Power: Condensing units of 4 to 5 tons or more are typically required, depending on cooling demand and cooling load.

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