Cosmo Multi 2 Montage- Und Bedienungsanleitung Seite 94

94
4. Functions and options
Target temperature:
Solar/Options/Target tem.
selection „Yes", „No"
factory setting: „No"
if you select „Yes".
Solar/adj. values/tcolset
adjustment range: 20 ... 110 °C
factory setting: 65 °C
Parallel relay:
Solar/Options/Par. Relay
selection: „Yes", „No"
factory setting: „No"
CS-Bypass:
Solar/Options/CS-Bypass
selection: „Yes", „No"
factory: setting „No"
if you select „Yes":
Solar/adj. values/CS-Byp.
adjustment range: 100 ... 500 W/m
factory setting: 200 W/m
2-collector systems:
Afterheating suppression:
Solar/Options/ah suppress.
selection: „Yes", „No"
factory setting: „No"
if you select „Yes":
Solar/Expert/ah suppress.
adjustment range: St 1 ... St 4
factory setting: St 1
Collector emergency shutdown:
Solar/adj. values/Tcolsec
adjustment range: 110 ... 200 °C
factory setting: 120 °C
hysteresis: 10 K
collector blocked
2
2
Pump speed is controlled according to collector tem-
perature rather than (usual) temperature difference.
The aim is to maintain constant collector temperature,
adjustable with parameter "Tcolset".
If the solar circuit pump is switched on, this relay is
activated in parallel.
In 2-collector systems which are working with 2 pumps,
the parallel relay is activated if one of the 2 pumps is
activated.
If the irradiation exceeds the adjusted value CS-bypass,
the collector circuit is operated. It is switched off when
the irradiation has fallen below the value „CS-bypass"
for at least 2 minutes.
The collector circuit is operated with minimum pump
speed.
If a loading of the store is carried out in these systems,
the function is switched off.
This function is active if a previously selected solar
store (parameter designation: "AH suppress." in the
menu solar expert) is being loaded.
Solar loading means that store loading is only carried
out for energy supply and not for cooling purposes etc.
At high collector temperatures (depending on system
pressure or antifreeze concentration etc.) the systems
stagnates. This means that solar loading is not possible.
If the adjusted temperature threshold „Tcolsec" is ex-
ceeded, the corresponding collector will no longer be
used for loading.
A collector is considered to be blocked, if either the
sensor is defective or the emergency shutdown tem-
perature is reached.