│
14
C.2.2. Variant 1, Option B
A system with a solid fuel boiler w. manual stoking, one heating circuit, a combination thermal
store and a thermal store. The BIO MIX Load Unit ensures DHW and space heating and heat
storage in the combination and standard thermal stores. It is recommended to use a Caleon
room unit or a room temperature sensor for a more precise control of the room temperature.
To ensure DHW heating also in periods when the boiler is extinguished, it is recommended to
install an electric heating element fitted with an adjustable and a safety thermostat for DHW
afterheating in the upper section of the combination thermal store.
Locations of temperature sensors
S1 – not connected, a room temperature sensor may be connected (optional accessories)
S2 – upper temperature sensor in a (combination) thermal store (under the separating metal sheet)
S3 – lower temperature sensor in a thermal store
S4 – temperature sensor at the outlet from a solid-fuel boiler
S5 – heating water temperature sensor (in a sheath inside the load unit)
S6 – outdoor temperature sensor (installed on a north-facing wall about 1.5-3m above the ground)
Basic hydraulic diagram
DESCRIPTION
KK
ball valve
AOV
automatic air vent valve
ZV
check valve
MFB
Magnet Filterball
VK
drain valve
PV-TV
DHW safety valve
REDV
pressure reducing valve (5 bar)
1
RegulusBIO Load Unit
SVE
expansion vessel service valve
2
boiler
DOCHV
thermal safety relief valve (e.g. BVTS)
3
combination thermal store with DHW
TSV TV
anti-scald valve
4
thermal store
PV-TOP
heating system safety valve
5
heating system
EN-TV
DHW expansion vessel
6
safety kit*
EN-TOP
heating system expansion vessel
*the safety kit involves a test valve, check valve, drain valve, safety
valve, pressure gauge and outlet to connect an expansion vessel
