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Collector minimum limitation option
OCN:
Collector minimum limitation
Adjustment range: OFF / ON
Factory setting: OFF
CMN:
Collector minimum temp.
Adjustment range:
10.0 ... 90.0 °C
[50.0 ... 190.0 °F]
in steps
of 0.5
°C
[1.0 °F]
Factory setting:
10.0 °C [50.0 °F]
Antifreeze option
OCF:
Antifreeze function
Adjustment range: OFF / ON
Factory setting: OFF
CFR:
Antifreeze temperature
Adjustment range:
-40.0 ... +10.0 °C
[-40.0 ... +50.0 °F]
in steps
of 0.5
°C
[1.0 °F]
Factory setting:
4.0 °C [40.0 °F]
Heat quantity measurement
OHQM:
Heat quantity measurement
Adjustment range: OFF / ON
Factory setting: OFF
FMAX: Flow rate in l/min
Adjustment range: 0.5 ... 100.0
in steps of 0.5
Factory setting: 6.0
MEDT: Heat transfer fluid
Adjustment range: 0 ... 3
Factory setting: 1
MED%: Antifreeze ratio
in Vol-% (MED% is hidden
when MEDT 0 or 3 is used.)
Adjustment range: 20 ... 70 %
in steps of 1 %
Factory setting: 45 %
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All manuals and user guides at all-guides.com
If the collector minimum limitation option is activated,
the pump (R1) is only switched on if the adjustable
collector minimum temperature is exceeded. The minimum
temperature prevents the pump from being switched on too
often at low collector temperatures. A fixed hysteresis of
5 °K [10 °Ra] is set for this function
If the collector minimum limitation is active,
shown on the display.
The antifreeze function activates the loading circuit between
the collector and the store when the temperature falls below
the adjusted antifreeze temperature. This will protect the
fluid against freezing or coagulating. If the adjusted antifreeze
temperature is exceeded by 1 K [2 °Ra], the loading circuit
will be deactivated.
When the antifreeze function is activated,
the display. If the antifreeze function is active,
(flashing) are shown on the display.
If OHQM is activated, the heat quantity gained can be calcu-
lated and displayed. Heat quantity measurement is possible if
a flowmeter is used. To enable heat quantity measurement,
proceed as follows:
Î Read the flow rate (l/min) from the flowmeter at
maximum pump speed and adjust it in the FMAX
channel
Î Adjust the heat transfer fluid and the concentration of
the antifreeze in the channels MEDT and MED%.
Heat transfer fluid:
0 : Water
1 : Propylene glycol
2 : Ethylene glycol
3 : Tyfocor
Note:
If OSTC or OCF is active, the collector
minimum function will be overridden. In that case,
the collector temperature may fall below CMN.
Note:
Since this function uses the limited heat quantity
of the store, the antifreeze function should be
used in regions with few days of temperatures
around the freezing point.
The antifreeze function will be suppressed if the
store temperature falls below 5 °C [40 °F] in
order to protect the store from frost damage.
LS / G-LS
®
(flashing) is
is shown on
and
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