Hot Gas Reverse Cycle Kits (cont.)

In the refrigeration cycle, the thermostatic expansion

valve bypass assembly check valve only allows refrigerant flow through the thermostatic expansion valve and into the evaporator coil. As the refrigerant vapor exits the coil at the suction line, the check valve of the drain pan loop check valve assembly prevents the refrigerant vapor flow through the drain pan loop.

Factory engineered assemblies (kits) are available for both shipped-loose and factory-installed at an additional cost to complete the reverse cycle piping and components. The suction line check valve assembly includes the suction line check valve and the piping for both the suction line and the connection to the drain pan loop inlet header. In order for the suction line check valve assembly to be mounted, the drain pan loop check valve assembly must be used. The drain pan loop check valve assembly includes the check valve, suction line tee and a bent pipe. The thermostatic expansion valve bypass assembly option includes the check valve, tee and necessary piping. In order for the thermostatic

expansion valve bypass assembly option to be complete, a thermostatic expansion valve must be selected by the

sales engineer. The thermostatic expansion valve bypass assembly option is dependent on the body style of the thermostatic expansion valves which includes the Sporlan SQE, SBF, EG and the Alco HFESC body styles. The factory- installed thermostatic expansion valve bypass assembly

option must have the thermostatic expansion valve selection included on the order for the hot gas unit cooler.

To increase the efficiency, higher performance and greater system protection, a heat exchanger may be beneficial to the system. In order to use a heat exchanger, the thermostatic expansion valve bypass assembly option must be modified. See the piping view in Figure 2. The modification includes rerouting the pipe from the thermostatic expansion valve bypass check valve to the inlet connection of the liquid line to the heat exchanger. A pipe needs to be routed from the liquid line outlet connection of the heat exchanger to the inlet connection of the thermostatic expansion valve.

The electrical control option includes an adjustable defrost termination and fan delay control (DTFD) which is standard. For an additional cost, 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 both the DTFD and DT adjustable controls, the remote bulb position is with the bulb strapped to the piping of the thermostatic expansion valve bypass assembly option between the distributor sideport and the check valve. When the thermostatic expansion valve bypass assembly is shipped-loose, the installer will need to position the remote bulb. When the thermostatic expansion valve bypass assembly is factory-installed, the remote bulb should already be properly installed.

14

Page 13 Page 15
Page 14
Image 14
Heatcraft Refrigeration Products ELC/EFC, GLC, RLC manual Hot Gas Reverse Cycle Kits
Page 13 Page 15

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.
Top Page Image Contents