1. General
KPS: Multiple heat source cylinder for combining several heating systems, such as solid fuel,
pellet, oil or gas boiler with water heating carried out in the enamelled internal vessel, which
includes a magnesium anode to DIN 4753/T.3. Additional solar heating is possible via a separate
coiled heater exchanger. Height adjustable feet included as standard.
DUO-FWS/FWP: Multiple heat source tank for combining several heating systems, such as solid
fuel, pellet, oil or gas boiler and thermal pumps. With a large stainless steel corrugated pipe heat
exchanger for heating mains water mainly in the fl ow. Additional solar heating is with DUO-FWS
possible via a separate coiled pipe. Height adjustable feet included as standard.
Permitted operating over pressure
Buffer tank
Outer water tank / stainless steel
corrugated pipe heat exchanger
Solar heat exchanger
Operating temperature
Buffer tank
Outer water tank / stainless steel
corrugated pipe heat exchanger
Solar heat exchanger
See type plate for further technical data.
Thermal insulation: there are 2 variants available for thermal insulation. Variant 1 consists of PUR
soft foam with a foil cladding, variant 2 consists of PUR soft foam or polyester fi bre with a
polystyrene outer skin (see also point 4).
2. Installing and operating the cylinder
Read these instructions carefully before commencing installation. Should you have any queries,
please contact our customer service department (see Contact details).
Installation, commissioning and maintenance should be carried out by qualifi ed specialist staff in
accordance with the relevant standard (including EN 1717, DIN 1988, EN 12828, VDI 2035, and the
regulations of the local provider).
Installation may only take place in rooms free from frost and on a substrate that has suffi cient load
bearing capacity for the tank when it is fi lled to capacity. Suffi cient space should be allowed for
future installation and to service the system etc. Refer to point 4 when installing the thermal
insulation. For versions intended for retrospective assembly (specially labelled), the water-side
installation can take place before installing the insulation.
Do not exceed the permitted operating conditions. Various pressure chambers have to be secured
separately and their nominal capacities taken into account when selecting the size of the
expansion tank. Each of the safety valves should be installed so that they are easily accessible to
be able to make regular checks and to fi t them with drain connections.
The tank(s) should be connected and equipped in such a way that no air pockets can form inside
them and that no vacuum is created. Please allow for separate drains.
The outer water tank should always be fi lled fi rst followed by the buffer tank. Draining should be
carried out in reverse, and the buffer tank de-pressurised.
10
ENG
Installation and operating instructions
KPS
3 bar
10 bar
10 bar
KPS
95 °C
95 °C
110 °C
11
FWP
3 bar
10 bar
Not applicable
FWP
95 °C
95 °C
Not required
DUO-FWS
3 bar
10 bar
10 bar
FWS
95 °C
95 °C
110 °C