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5.1 Basic systems and hydraulic variants
The controller is preprogrammed for 9 basic systems.
The selection depends on the number of heat sour-
ces (collector elds) and heat sinks (stores, pool).
Factory setting is system 1.
A solar system with store loading in layers is im-
plemented as a 2-store system
(store top = store 1; store bottom = store 2).
The selection of the basic solar system is one of the
most important adjustments and is thus requested
already in the commissioning menu.
First, the basic system is adjusted by means of the
number of stores and collectors elds, then the hy-
draulic variant.
The selected system is visualised by the correspon-
ding number of store and collector symbols. The -
gure to the left shows system 6 which consists of 3
stores and 2 collector elds ("east- / west collectors").
System 0: no solar system
System 1: 1 collector eld - 1 store
System 2: east- / west collectors - 1 store
System 3: 1 collector eld - 2 stores
System 4: east- / west collectors - 2 stores
System 5: 1 collector eld - 3 stores
System 6: east- / west collectors - 3 stores
System 7: 1 collector eld - 4 stores
System 8: east- / west collectors - 4 stores
System 9: 1 collector eld - 5 stores
System
Variant
The hydraulic variant refers to the dierent actuators
that are to be controlled. They are visualised on the
display by means of symbols, when the variant is
selected. The upper symbol indicates the actuator
belonging to the collector elds, the lower one the
actuators belonging to the stores.
The exemplary gure shows the display indicated
when system 6, variant 2 has been selected. In this
case, each collector eld has a 2-port valve, the
stores are loaded by means of pump logic.
For each variant, the controller allocates the corre-
sponding relays and sensors. The allocations of the
most important combinations are shown in 5.2.
295931-36390-8667 SOM 8 plus_en.indb 14 20.10.2011 13:14:26
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