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Description of parameters
The "Min. Zone Temperature" and "Max. Zone Temperature" parameters define the delivery temperature adjustment
range for each zone; in case of Remote Control, the user delivery temperature adjustment will come within this range
and be modulated by the Remote Control during operation; in case of Chronothermostat: on closing of the contact, the
delivery temperature adjustment will be set to the "Max. Zone Temperature" parameter value; on closing of the contact,
the demand will be eliminated. The "Zone calculated set point offset" parameter defines an offset for the required deliv-
ery temperature set point. Example: if the Remote Control demands 52°C and this parameter is set to 10°C, the zone
controller will demand 62°C from the boiler; in case of Chronothermostat, this value will be added to the "Max. Zone
Temperature" parameter. The "Zone External Probe Curve" and "Zone External Probe Offset" parameters are used for
the sliding temperature in case of Chronothermostat.
OFFSET = 20
90
85
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40
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20
10
The "Mixing valve on+off time" and "Mixing valve on time for °C" parameters are used for adjustment of the mixing valve.
Example: with the parameters set to the default value (therefore 15sec and 1sec/°C), if the delivery temperature re-
quired for the mixed zone is 32°C and the actual delivery temperature measured by the mixed zone sensor is 28°C, the
mixing valve will remain in opening 4sec (=(32°C-28°C)*1sec/°C) every 15sec. The same rule (in absolute value) is ap-
plied for closing.
The "Mixing Valve Boost" parameter defines the mixing valve forced opening time. With every new demand, the mixing
valve is opened for this time, before starting adjustment.
The "Post-circulation time" parameter defines the post-circulation time and is activated on the last zone which ends the
temperature demand.
The "Delay for Zone Valves" parameter defines a waiting time between the zone controller demand and activation of
the boiler circulating pump.
48
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20
10
fig. 39 - Compensation curves
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fig. 40 - Example of parallel compensation curve shift
cod. -- - 11/2010 (Rev. 00)
ECONCEPT SOLAR ST
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OFFSET = 40
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EN
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