Product Overview & Application Area
The GEMA FKS 800 is a standing hygienic storage tank with a net capacity of 714 liters and no heat exchanger. It combines a heating buffer tank with a stainless steel corrugated pipe for hygienic domestic hot water heating and is suitable for integration into heating systems with suitable heat generators and system components.
The design is intended for technical storage applications in the boiler room. Without insulation, the height is 1,690 mm, the width is 790 mm, and the depth is 790 mm.
Technology & Equipment
The storage tank operates on the storage side with heating water, while domestic hot water heating is carried out via the integrated stainless steel corrugated pipe. In addition, the FKS 800 features a lower heat exchanger with a heat exchange surface of 3 m² for integrating additional system components.
For system integration, 8 supply and return connections with 1 1/2" female thread, 4 sensor and controller connections with 1/2" female thread, a vent connection with 1 1/4" female thread, as well as connections for the stainless steel corrugated pipe and electric heating elements are available.
Everyday Benefits
The FKS 800 supports hygienic domestic hot water preparation using the instantaneous heating principle via the stainless steel corrugated pipe and at the same time provides buffer volume for the heating system. This allows the storage tank to be used in systems where heating water is stored and domestic hot water is heated as needed.
The associated insulation variants with 100 mm EPS, 130 mm EPS, or 150 mm EPS vacuum allow for a suitable adjustment to the desired energy efficiency class and the structural requirements in the boiler room.
System Integration & Compatibility
The lower heat exchanger can be used to integrate additional heat generators or system components. The charging and discharging connections enable hydraulic integration in accordance with the system design.
Heating cartridges may only be installed in the designated and red-marked connections. For safe operation, safety valves, expansion vessels, venting, and fittings must be sized to match the respective system.
Technical data at a glance
| Storage type |
Hygiene storage tank |
| Storage volume |
714 l net capacity without heat exchanger |
| Number of heat exchangers |
1 lower heat exchanger |
| Suitable for drinking water |
Yes, via stainless steel corrugated pipe |
| Hygiene function |
Yes, domestic hot water heating via stainless steel corrugated pipe |
| Max. temperature |
95 °C |
| Max. operating pressure of storage tank |
5 bar |
| Height without insulation |
1,690 mm |
| Width without insulation |
790 mm |
| Depth without insulation |
790 mm |
| Weight without insulation |
220 kg |
Installation
Installation, connection, and commissioning may only be carried out by qualified personnel. The tank must be set up vertically on a load-bearing, level surface. For transport and positioning, the tilting dimension without insulation of 1,720 mm must be taken into account.
The insulation should only be installed after positioning and after checking the connection positions. Unused connections must be properly sealed.
Notes
The tank may only be operated within the specified pressure and temperature limits. The maximum permissible tank temperature is 95 °C. Operating pressure, tightness, venting, and safety devices must be checked regularly.
For drinking water connections, the applicable hygiene and installation regulations must be observed. If an electric heating cartridge is used, the corresponding electrotechnical requirements also apply.
Scope of delivery
- GEMA Hygienespeicher FKS 800