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Sorel DR3 Manual

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L:\Bedienanleitungen\SOREL\DR3\DR3_2003englissh_040203_mb.p65
8. Setting the control parameter
Depending on the set software version 1-14, the following control
parameters must be set for the respective scheme. The settings
which must be done for programme 1 also apply for the usage
programmes 1-14, and they will be supplemented by further
settings for the respective programme, if necessary.
Use the Plus key to increase and the Minus key to decrease the
set values. The Enter key is to confirm the selected value and
the menu skips automatically to the next setting value. Got to the
end of the setting values, the controller returns back to the main
menu on its own.
Caution: Faulty settings can lead to hazards and malfunctions of
the device. Instructions as well as information of the fabricators
must be respected and a specialist must be consulted.
8.1 Menu „02 Settings“ for
Programme 1
Tmin S1
The minimum collector temperature set must be exceeded at
sensor S1 for the solar function to be released.
Setting range:0...90°C Default value: 30°C
Tmax S2
Desired maximum solar storage tank temperature at sensor S2.
If the temperature set in the solar storage tank is exceeded at
sensor S2, the solar pump is switched off at what the shift
hysterese amounts 2°C.
Setting range:0...120°C Default value: 60°C
∆∆
∆∆
∆T R1
Here the temperature difference must be set which must be
exceeded between the collector sensor and the storage sensor
for the solar heat charge///transfer into the storage tank to begin.
The heat is charged///transferred into the storage tank until the
temperature difference has fallen to 1/3 of the set value.
(Excetion see rotational speed control under 10.1)
setting range: 6...18K Default value: 10K
Notes for the rotational speed control of the pump for the
specialist:
The DR3 controller is able to change the rotational speed of
standardpumps (and only these!) by means of the electronic
semiconductor relay R1.
Settings for the rotational speed control of the solar pump are to
be done in the menu Special functions under „Rotational speed R1“.
8.2 Menu „02 Settings“ for
Programme 2
The same settings as in programme 1 must be done. The
mechanical relay R2 switches on and off with the solar pump
R1, which makes it possible that an electric lockvalve is triggered
by the controller, e.g..
Select with or
Confirm with
02 Settings
8.3 Menu „02 Settings“ for
Programme 3
At first, the same settings as in programme 1 must be done.
Afterwards, the thermostat function must be set via sensor S3
and relay R2:
Tnom S3
If the temperature at sensor S3 in the upper storage tank area
falls below this value and a positive value is set subsequently
under „Hysterese“, then relay R2 switches on as backup heating.
The backup heating remains active until the storage is heated
up to the value Tnom S3 plus hysterese.
If the temperature at sensor S3 in the upper storage tank exceeds
this value and a negative value is set under „Hysterese“, then
relay R2 switches on as cool function. The cooling of the storage
tank remains active until the storage is cooled down to the value
Tnom S3 minus the hysterese.
Setting range:0...90°C Default value: 60°C
Hysterese
This setting at first determines decisively whether a backup
heating (positive value) or a heat discharge/storage tank cooling
function (negative value) is used. In addition, it will be determined
how many °C since the value Tnom S3 set beforehand shall be
heated/cooled down.
Setting range:-20...20°C Default value: +10°C
8.4 Menu „02 Settings“ for
Programme 4
The same settings as in programme 1 must be done. The
mechanical relay R2 switches on the valve for the bypass
operation with the solar pump R1 until the temperature at the
forerun sensor S3 is bigger than at the storage sensor S2.
8.5 Menu „02 Settings“ for
Programme 5
At first, the same settings as in programme 1 must be done and
afterwards, the additional difference for the heating return rise
must be set.
Tmin S2
The set minimum storage temperature must be exceeded at S2
for a heat discharge to the heating circle to be released.
Setting range:0...90°C Default value: 50°C
Tmax S3
If the set temperature exceeds at the heatcircle return sensor
S3, the return rise / relay R2 will switch off for the heating circle
not to be overheated.
Setting range:0...120°C Default value: 60°C
∆∆
∆∆
∆T R2
Here the temperature difference must be set which must be
exceeded between the storage sensor S2 and the heating circle
return sensor S3 for a heat discharge to the heating circle to
begin.
The heat is transferred into the heating circle until the temperature
difference has fallen to 1/3 of the set value.
Setting range:6...18K Default value: 10K
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