AMABILIA DORFC-2 Flushing & filling earth loop and units together, Flushing earth loop only

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flushing & charging (continued)

flushing & filling earth loop and unit(s) together

All air and debris must be removed from the earth loop piping system before operation. Flush the loop with a high volume of water at a high velocity (2 fps in all piping in accordance with IGSHPA guidelines).

1.Connect the unit and loop to the flow center.

2.Connect the flush cart hoses to the front port of the flow center (see Figure 8).

3.Fill closed loop (outside) evenly with domestic water and discharge the return water by adding water to the flush cart until water returns to the reservoir. The return water should be filtered or discharged to remove debris.

4.Fill the flush cart two-thirds full for initial flushing.

5.Flush the lowest portion of the system first.

Depending upon the individual layout, this could be the loop or the unit. (If unit is lowest part of system, set valve position as shown in Figure 9C. If loop is lowest part of system, set flow center valve position as shown in Figure 9A.)

6.Restart the pump. Once you have a steady flow of water on the return side from the system, deadhead the pump by closing the ball valve on the hose returning to the reservoir. This will generate the maximum pressure on the system. While the return ball valve is closed, note the fluid level in the reservoir. If all the air is purged from the system, the level will drop only 1/2" to 3/4" in the flush cart site glass, since water is not compressible. This is the only way to tell if the air is purged from the system.

Open valve quickly, wait one minute, then deadhead again. Repeat this process until all air is purged from the system.

7.Reverse the flow direction with the flush cart and repeat Step #6.

8.Repeat Step #6 for the higher elevation side of the system. (If unit is highest part of system, set valve position as shown Figure 9C. If loop is highest part of system, set flow center valve position as shown in

Figure 9A.)

9.After flushing both sides of the system, reset flow control valves to flush the entire system. Set valve position as shown in Figure 9B and repeat Step #7.

flushing earth loop only

1.Connect loop to flow center.

2.Connect the unit side connections of the flow center together with a jumper hose.

3.Remove caps and plugs from flow center front access ports.

4.Connect flush cart hoses to access ports.

5.Position valve stems as shown in Figure 9A.

6.Fill the flush cart two-thirds full for initial flushing.

7.Restart the pump. Once you have a steady flow of water on the return side from the system, deadhead the pump by closing the ball valve on the hose returning to the reservoir. This will generate the maximum pressure on the system. While the return ball valve is closed, note the fluid level in the reservoir. If all the air is purged from the system, the level will drop only 1/2" to 3/4" in the flush cart site glass, since water is not compressible. This is the only way to tell if the air is purged from the system.

Open valve quickly, wait one minute, then deadhead again. Repeat this process until all air is purged from the system.

8.Reverse the flow direction with the flush cart and repeat Step #7.

9.Rotate the flow center valves to isolate the flush cart from the rest of the system (see Figure 9C).

10.Turn off flush cart pump, relieve pressure on the hoses and remove them.

11.Replace flow center access plugs and caps.

12.Rotate valves back to position as shown in Figure 9B.

13.Remove jumper from unit connection ports.

Manual

2100-518B

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22 of 30

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Contents Models DORFC-1 DORFC-2 Contents Getting Other Information and Publications For more information, contact these publishersSAfEty FLow center descriptionFlow center performance Dimensional drawing Flow center dimensionsConcrete/masonry wall Flow center mountingStud wall Side of unitImpeller Shaft Horizontal Can not be Vertical Pump horizontal applicationsMounting Piping installation DescriptionDORFP1-S Multiple unit to single loop connection Flow center connection to GV Series modelFlow center connection to GT Series model Flow center connection to QW Series model Multiple unit connection to singular ground loop Flow center wiring Electrical ratingsElectrical connections Procedures for adding antifreeze Flushing & chargingConnecting flush cart to flow center Flush Loop only Flush Loop & Unit Together Flush Unit only Operation Flushing & filling earth loop and units together Flushing earth loop onlyFlushing & charging Pressure/temperature plugs Procedure for pressurizing the systemFlow center initial startup Pressure temperature ports GV Series coil pressure dropGT Series coil pressure drop QW Series coil pressure dropTroubleshooting Problem Possible Causes Checks & CorrectionsANTIfreeze selection & use Fluid volume Percentages by volumeDensity verification for Solution strength Antifreeze verification

DORFC-1, DORFC-2 specifications

AMABILIA DORFC-2 and DORFC-1 are two innovative technologies designed to enhance connectivity and improve communication systems. These frameworks are particularly useful in environments where traditional network infrastructure may be lacking or impractical. Both models come equipped with several key features that distinguish them from their predecessors and competitors in the field.

One of the main features of AMABILIA DORFC-2 is its advanced adaptive signal processing capability. This allows the system to intelligently adjust to varying signal conditions, minimizing data loss and ensuring a more stable connection. The technology incorporates machine learning algorithms to learn from network behavior and optimize performance, making it ideal for dynamic environments.

The DORFC-1 model complements the DORFC-2 by offering unique characteristics aimed at enhancing user experience. It supports a wider range of frequency bands, allowing for improved coverage and penetration in densely populated areas. Additionally, DORFC-1 is built with enhanced security protocols to protect data integrity and user privacy. This includes end-to-end encryption and robust authentication mechanisms that safeguard the network from unauthorized access.

In terms of deployment, both AMABILIA DORFC-2 and DORFC-1 are designed for ease of installation. They can be integrated into existing systems with minimal disruption, enabling organizations to upgrade their network capabilities without extensive downtime. This adaptability makes them suitable for various industries, including telecommunications, logistics, and emergency services.

The technologies incorporate state-of-the-art modulation techniques to maximize data throughput. This results in lower latency and higher reliability, which are critical for applications requiring real-time data transmission. Whether used for voice, video, or IoT applications, these systems are tailored to meet the demands of modern communication needs.

Energy efficiency is another noteworthy aspect of the AMABILIA DORFC series. Both models are optimized for low power consumption, which not only reduces operational costs but also has a positive impact on environmental sustainability. This technology aligns with global efforts to reduce the carbon footprint of communication infrastructure.

In summary, AMABILIA DORFC-2 and DORFC-1 represent significant advancements in connectivity technology. With their adaptive processing capabilities, enhanced frequency support, robust security features, and energy efficiency, they stand out as reliable solutions for improving communication networks in diverse applications.
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