Geotherm - Model BOX IN-2F -Wall-mounted Manifold Box with Flowmeters and Gate Valves
The BOX IN-2F is a wall-mounted manifold box designed for controlling and regulating brine flow in two geothermal loops. This precision tool features integrated flowmeters and wedge gate valves, ensuring even distribution and smooth regulation of brine across the loops. Unlike ball valves, wedge gate valves provide enhanced durability and performance, sustaining long-term operation under the abrasive conditions typical of geothermal systems. The unit allows for flexible installation, with connection ports capable of accommodating either side of a geothermal heat pump. Featuring dual stainless steel access doors, the BOX IN-2F simplifies maintenance and operational adjustments. Its compact dimensions and hydraulic design make it one of the most installation-friendly options available. Engineered to operate under pressures up to 5 atmospheres, with the ability to withstand short-term overpressure conditions up to 10 atmospheres, it effectively manages temperatures ranging from -15°C to +50°C. Recommended hydraulic schemes ensure optimal setup, whether for compact installations or scenarios where pressure management by less experienced installers is critical. This product showcases robust technical capabilities suitable for various geothermal applications, providing reliability and efficiency.
The 'BOX IN-2F' wall-mounted manifold box with flowmeters and wedge gate valves is designed to control and regulate the flow of brine in 2 geothermal loops.
The flowmeters will indicate the presence or absence of brine flow and help to evenly adjust the flow across all 2 geothermal loops. We recommend the use of a wedge gate valve for flow control.. Compared to a ball valve - the wedge gate valve regulates the flow of liquid smoothly and does not wear out during long-term operation due to the abrasive properties of the brine.
The brine flow in the geothermal loop is completely shut off by the ball valve integrated in the flowmeter and wedge gate valve .
Connection 'BOX IN-2F' to the geothermal heat pump is possible from either the right or left hand side of the heat pump. Two stainless steel doors on opposite sides of the 'BOX' manifold box are provided for access to the flowmeters and gate valves.
Hydraulic connections:
- on the top, 3 detachable brass unions with 3/4'' female thread for the installation of filling taps, air vent valves, level vessel, pressure gauge, safety group, etc;
- on the side, 2 detachable brass unions with 1'' male thread for connecting a geothermal heat pump;
- at the bottom 4 polyethylene pipes Ø40 mm for geothermal loops.
The most compact and installation-friendly manifolds boxes on the market!
The 'BOX IN-2F' cubicle dimensions are: length 243 mm, width (depth) 164 mm, height 400 mm. Overall dimensions with connectors and threads: length 308 mm, width (depth) 164 mm, height 517 mm.
Working pressure of up to 5 atmospheres of brine. Short-term overpressure up to 10 atmospheres possible.
Brine operating temperatures: minus 15 °C to +50 °C.
We recommend two typical hydraulic schemes for connecting a heat pump to a `BOX` geothermal enclosure.
Scheme 1 is the most compact, fastest and cheapest to install. A possible limitation of scheme 1 is that the size or capacity of existing level vessels is not suitable.
Advice on the application of Scheme 1 when carrying out work on filling the geothermal system with brine:
- Close the ball valves installed between the manifold box and the geothermal heat pump
- When filling the system, in case the brine pressure exceeds the set pressure of the safety valve for a short time, close the upper plastic cap on the safety valve for a temporary blocking of the valve
- Important: after having filled the collectors - unblock the safety valve
- Open the ball valves installed between the `BOX` manifold box and the heat pump
Scheme 2 prevents exceeding the maximum allowable pressure brine in the heat pump. This is a relatively common mistake made by inexperienced installers that can damage the geothermal heat pump. We recommend Scheme No. 2 if the heat pump is to be installed, started up or maintained by beginners.