Heatcraft Refrigeration Products GLC, RLC, ELC/EFC manual Pipe Hot Gas Defrost

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3-Pipe Hot Gas Defrost

The hot gas defrost unit coolers conforms to the standard 3-pipe hot gas system using a check

valve assembly, an electrical control to terminate the defrost, and a hot gas solenoid valve. The

check valve assembly transports the hot gas between the drain pan loop and the sideport distributor of the coil. The check valve assembly kit

is available for shipped-loose or factory-installed for an additional cost.

The electrical control option includes an adjustable defrost termination and fan delay control (DTFD) which is standard. An optional

(2) control electrical system is available with one adjustable control for defrost termination (DT)

and one fixed control for the fan delay (FD) for an additional cost. For both the DTFD and DT adjustable controls, the remote bulb position is

with the bulb strapped to the suction line to insure a complete defrost. The remote bulb is positioned

by the installer. The hot gas solenoid valve must be

ordered separately and will be shipped-loose. The thermostatic expansion valve could be ordered separately and shipped- loose or the thermostatic expansion valve could be factory-installed with a liquid line for an additional cost.

The liquid line is designed for the body styles of the Sporlan SQE, SBF, EG and the Alco HFESC thermostatic expansion valves. The thermostatic expansion valve needs to be selected by the sales engineer. In a typical 3- pipe, multiple evaporator system, the compressor discharge defrosts the evaporator. The liquid/vapor mixture of refrigerant after defrost, however, returns to the common suction line of the system. In order to provide sufficient re-evaporation of the liquid vapor mixture and sufficient heat for defrost, no more than one-third of the system should be defrosted at one time. Some means of control in the 3-pipe hot gas system should be supplied to regulate the large amount of liquid returning to the compressor, refrigerant slugging can otherwise damage the compressor.

GLC 6 FPI

 

Shipped-loose

 

 

Factory-installed

 

 

TXV Liquid Line

 

 

TXV Liquid Line

 

SQE/SBF

EG

HFESC

SQE/SBF

EG

HFESC

035-075

090-160

180-280

50169410

50169411

50169412

50169413

50169414

50169415

50169416

50169417

50169418

52733901

52733902

52733903

52733904

52733905

52733906

52733907

52733908

52733909

GLC 4 FPI

041-080

102-204

235

50169410

50169411

50169412

50169413

50169414

50169415

50169416

50169417

50169418

52733901

52733902

52733903

52733904

52733905

52733906

52733907

52733908

52733909

For hot gas models with the

 

 

Shipped-loose

Factory-installed

hot gas loop drain pan only

Drain Pan Loop Check Valve Kit

Drain Pan Loop Check Valve Kit

When using the hot

 

GLC 6 FPI

 

 

gas units with a hot

 

 

gas loop drain pan on

035-075

50169504

52739601

0°F applications and

090-160

50169505

52739602

below, an insulated

180-280

50169506

52739603

drain pan is required.

 

 

 

GLC 4 FPI

 

 

 

 

 

 

041-080

50169504

52739601

 

102-204

50169505

52739602

 

235

50169506

52739603

15

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Contents LOW Profile Unit Cooler Nomenclature Table of ContentsFeatures & Benefits Model Capacity Fan Data Performance DataModel RLC Air Defrost 60 Hz Model RLC Air Defrost 50 Hz †EC Motor SpecificationsModel RLC Air Defrost 50 Hz Model Shaded Pole MotorModel ELC/EFC Electric Defrost 50 Hz † Model ELC/EFC Electric Defrost 60 HzModel ELC/EFC Electric Defrost 50 Hz Model GLC Hot Gas Defrost 50 Hz † Model GLC Hot Gas Defrost 60 Hz115/1/60 230/1/60 460/1/60 Model GLC Hot Gas Defrost 50 HzPhysical Data Model RLC Air DefrostFans Pan Conns Model GLC Hot Gas DefrostDimensional Data ElectricDefrost Hot Gas Model Defrost Model SQE/SBF Hfesc Hot Gas Reverse Cycle KitsHot Gas Reverse Cycle Kits Pipe Hot Gas Defrost Replacement Parts DescriptionDescription Voltage Model No. Standard Nozzle SelectionPage Page FAX

GLC, ELC/EFC, RLC specifications

Heatcraft Refrigeration Products offers a range of advanced solutions in commercial refrigeration, with models such as GLC, ELC/EFC, and RLC standing out for their efficiency, reliability, and innovative technologies. These products are designed to meet the demanding needs of various applications, from supermarkets to food storage facilities.

The GLC series is characterized by its high-efficiency condensing units, which utilize advanced compressor technology to optimize energy consumption. This series is designed for low and medium temperature applications, making it versatile for different environments. The GLC units offer a wide range of capacities, ensuring that businesses can select the right unit to match their specific refrigeration needs. Additionally, the GLC series is engineered with quiet operation in mind, minimizing noise levels which can be crucial in customer-facing environments.

The ELC/EFC series represents Heatcraft's commitment to energy efficiency. These units feature electronic controls and advanced refrigeration technology that significantly reduce energy usage while maintaining optimal performance. The ELC models are favored for their integration of environmentally-friendly refrigerants, aligning with the industry's push for sustainability. The EFC variant is particularly well-suited for applications requiring precise temperature control, thanks to its sophisticated monitoring and adjustment capabilities. This series also boasts a compact design, making installation simpler without compromising on performance.

The RLC series is known for its robust design and reliability in demanding environments. These units are built to endure harsh conditions, ensuring consistent operation over the long term. The RLC series is equipped with features such as anti-corrosion coatings and high-performance insulation, helping to prevent energy loss and extend equipment life. Additionally, the RLC series supports various refrigerants and is designed for easy maintenance and service, reducing downtime for businesses.

In addition to their main features, all these units incorporate advanced technologies, such as variable speed drive (VSD) compressors, which optimize operation based on real-time demand. They also come with built-in connectivity options, allowing for remote monitoring and management, which is particularly beneficial for large-scale operations. Heatcraft Refrigeration Products continuously evolves its offerings to meet industry standards and customer expectations, providing reliable refrigeration solutions that enhance performance and efficiency.