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SCU224
For control- and service works the operating mode of
the controller can be manually adjusted by selecting the
adjustment value MM in which the following adjustments
can be made:
4.1.19 Operatingmode
• HND1/HND2
Operating mode
OFF : relay off (blinking) +
AUTO : relay in automatic operation
ON : relay on (blinking) +
HND1/HND2:
Operating mode
Adjustment range:
OFF, AUTO, ON
Factory setting: AUTO
The thermostat function works independently from the solar
pump operation and can be used for after-heating by a boiler,
use of surplus energy, or for rejecting excess heat.
• AH O < AH F
the thermostat function is used for after-heating
• AH O > AH F
the thermostat function is used for use of surplus
energy or heat rejection.
The display shows the symbol if the second relay
output is activated.
4.1.18 Thermostat function (Arr = 3)
Afterheating
AH O:
Thermostat-
switch-on tem perature
Adjustment range 30 ... 205°F
Factory setting 105°F
AH F:
Thermostat-
switch-off tem pe rature
Adjustment range 30 ... 205°F
Factory setting 115°F
t1 E, t2 E, t3 E:
Thermostat switch-on time
Adjustment range:
00:00 ... 23:45
Factory setting: 00:00
t1 A, t2 A, t3 A:
Thermostat switch-off time
Adjustment range:
00:00 ... 23:45
Factory setting: 00:00
In order to block the thermostat function for a certain
time span, there are 3 time frames t1 ... t3. If the function
should be activated only between e.g. 6:00 and 9:00, 6:00
should be set for t1 E and 9:00 should be set for t1 A. The
factory setting for the thermostat function is in continuous
operation.
If all time frames should stop at 00:00 o’ clock, the thermo-
stat function is continuously in operation
(factory setting).
4.1.20 Language
The menu language can be adjusted in this channel.
• dE : German
• En : English
• It : Italiano
• Fr : French
LANG:
Adjustment of language
Adjustment range: dE, En, It, Fr
Factory setting: En
use of surplus energy
4.1.21 Unit
The menu unit can be adjusted:
• °FAH
• °CEL
UNIT:
Adjustment of unit
Adjustment range: FAH, °C
Factory setting: FAH
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