OPERATION OF THE HEAT RECOVERY UNIT

The pump module is a very simple device containing basic controls and a circulating pump. Heat is transferred from the hot refrigerant (discharge gas) to the cool water.

The operation of the Desuperheater Pump Module is controlled first by the operation of the Geothermal Heat Pump and secondly by internal controls within the Pump Module. A low voltage signal from Thermostat “Y” is connected to the internal control board of the GVDM-26 and acts as the primary on/off switch for the circulating pump.

Also connected to this board is a temperature overlimit device which shuts down the GVDM-26 once inlet water has exceeded 125° so the water cannot create a scald condition.

There are also two (2) thermistor sensors connected to the control board. These thermistors are measuring and controlling to ensure there is a positive heat differential across the water being circulated. When operating in Part Load Condition, there are certain conditions (Ground Loop Temperatures versus Hot Water Temperatures) that potential exists where heat could transfer from the hot water into the refrigeration system instead of the refrigeration system into the hot water. Through the control board logic, these thermistors ensure there is at least 2° positive differential between entering/leaving water temperatures and will shut down the pump accordingly.

START UP AND CHECK OUT

Be sure all shut off valves are open and all power supplies are on. Open a hot water faucet to permit any air to bleed from the plumbing.

NOTE: The inherent design of this pump for maximum efficiency means this pump is not self-priming. It is imperative to check that the air has been adequately bled from the system. There is a bleed-port built into the pump module that can be utilized after the system water has been fully restored. See Figure 2 for this bleed port location.

Turn ON the air conditioning system and verify the circulating pump will operate. Feel the “Water to Unit” and “Water from Water Heater” tubes for noticeable difference in temperature. Turn OFF the system and verify that the circulating pump stops.

NOTE: When checking the refrigerant operating pressures of the ground source heat pump. The GVDM-26 must be turned off. With the GVDM-26 operating a wide variance in pressures can result, giving the service technician the indication there is a charge problem when the unit is operating correctly.

MAINTENANCE

CLEANING THE HEAT EXCHANGER – If scaling of the coil is strongly suspected, the coil can be cleaned with a solution of phosphoric acid (food grade acid). Follow the manufacturer’s directions for the proper mixing and use of cleaning agent.

Manual

2100-517

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Bard GVDM-26 installation instructions Operation of the Heat Recovery Unit, Start UP and Check OUT, Maintenance
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GVDM-26 specifications

Bard GVDM-26 is an innovative and advanced robotic system designed for a variety of industrial applications. It is renowned for its versatility and efficiency, making it a popular choice across different sectors, including manufacturing, logistics, and warehousing.

One of the standout features of the Bard GVDM-26 is its robust construction. Built with high-quality materials, it is capable of withstanding heavy usage and harsh environments. This durability ensures that the GVDM-26 can operate effectively in demanding settings, reducing maintenance downtime and increasing productivity.

The GVDM-26 is equipped with cutting-edge automation technologies. It incorporates advanced sensors, including LIDAR and cameras, for precise navigation and obstacle detection. This allows the robot to autonomously navigate complex environments, ensuring safe and efficient transportation of materials and goods. The integration of AI algorithms enables the GVDM-26 to learn from its surroundings, improving its operational efficiency over time.

Another significant characteristic of the Bard GVDM-26 is its modular design. This allows for easy customization based on specific operational needs. Whether it’s adding additional payload capacity or integrating specialized attachments for unique tasks, the modular setup provides flexibility that is essential in dynamic industrial environments.

The Bard GVDM-26 excels in payload capacity, being able to handle substantial weights while maintaining high speed. With a load capacity of up to 1,000 kg, it can support various applications, from transporting raw materials to finished products. This capacity, combined with its speed, makes it a valuable asset for streamlining operations and enhancing workflow efficiency.

Moreover, the GVDM-26 offers seamless connectivity options, allowing it to integrate with existing warehouse and manufacturing systems. This connectivity enables real-time data exchange, facilitating better management of inventory and logistics operations. The robot can communicate with other machinery and software applications, leading to improved coordination across processes.

In terms of user experience, the Bard GVDM-26 features an intuitive interface that allows operators to easily monitor and control the robot. Its user-friendly design simplifies the setup and operational processes, reducing training time for personnel.

Overall, the Bard GVDM-26 stands out for its combination of robust construction, advanced automation technologies, modularity, high payload capacity, and user-friendly design. These characteristics make it an ideal choice for businesses looking to enhance their operational efficiency and adapt to the evolving demands of the industrial landscape. As industries continue to trend towards automation, the Bard GVDM-26 is poised to be a key player in the era of smart manufacturing and logistics.
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