Details
The Alphacool ES Reservoir 2U - DDC Version is a reservoir with an integrated pump top for a DDC pump, 62 x 80 x 60 mm, for 2U server racks and workstations. No pump is pre-installed. It offers 11 G1/4 connections, and the lower one for 1U racks is the ES Reservoir 1U.
Properties
- Pump
- For DDC, not included
- Ports
- 11 x G1/4: 10 inputs, one output
- Size (W x D x H)
- 62 x 80 x 60 mm
- Material
- Acetal
- Color
- Black
A development for the Enterprise Solution series
Alphacool built this ES 2U Reservoir around the DDC, which it calls a powerful pump, and gave it many connection and mounting options. In its words, the combination of all these features provides a perfect solution for the 2U format. It also describes the DDC version as an extremely compact reservoir, especially for a rack of that height.
Extensive connection options
The reservoir has a total of 10 inputs and one output, all with a G1/4 thread. There are 2 inputs on each side and 2 on top, and Alphacool says the top pair allow you to fill the reservoir perfectly. One inlet is used to fill in the liquid while the second allows the air to escape during filling. Thanks to these connection possibilities there are various options to position the expansion tank in a server rack.
Mounting options directly on the radiator
Ideally, the expansion tank sits right on the radiator. For this purpose, the package holds mounting frames and a double nipple fitting. The double nipple is the direct connection with an Alphacool NexXxoS radiator of the X-Flow series, and the reservoir is then attached to it with the enclosed mounting brackets. Those radiators naturally have suitable mounting holes for this. This type of mounting makes it possible to position the two either next to each other or with the reservoir offset in front of the radiator. The corresponding options are listed in detail in the instructions, which also show the pair mounted on a fan.
Further mounting options and pump installation
If it is not to go on the radiator, the reservoir can of course be fastened to any part of the case using the Velcro sheet provided. In that case one part of the Velcro fastener is stuck to the bottom of the reservoir and the other to any place in the server rack. To install the pump into the pump top, only 4 screws and an O-ring are needed. The O-ring is placed on the reservoir, then the pump is put on and fixed with those four screws. After that the entire unit is ready for use. We keep the pumps under DDC pumps.
What the loop needs
The box holds 10 screw plugs for the 11 ports. A loop uses the output and at least one input, and every unused inlet is closed with a plug, tightened with the plug tool. To fill, make sure all openings are closed, then pour through the upper fill port with a funnel or beaker. The water level drops when the pump first runs, so keep filling until it stops dropping and the pump cannot run dry.
Technical details
| Material | Acetal |
| Preinstalled pump | No |
| Connector | G1/4 inner thread |
| Fillport | G1/4 inner thread |
| LED hole | Not available |
| Pump compatibility | For DDC |
| Model of reservoir | 1x 3.5" Bayres |
| Color | black |
Technical data
| W x D x H | 62 x 80 x 60 mm |
| Net weight | 93 g |
| Maximum working temperature | 60 °C |
| Connections | 11 x G1/4 |
| Pressure tested | 0.8 Bar |
Notes
- Use only clear, transparent water cooling fluids. Alphacool warns that the particles and additives in pastel liquids can clog and permanently damage radiators, pumps, coolers and hoses, which can void the manufacturer's warranty.
In the box
- 1x ES Reservoir 2U
- 1x velcro mat
- 10x screw plug
- 1x double nipple
- 4x M4x20
- 10x M3x5 screw
- 1x screw plug tool
- 2x holder straight
- 2x holder angle
- 1x hose holder
Download Alphacool's PDF manual and DataSheet here. Its 3D model of this reservoir is an STP file, and the 3D viewer shows it from every side.
