Caleffi Solar iSolar 3 User Manual - page 9
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4.1.1 Indicataion of collector temperatures
4.1.2 Indication of tank temperatures
4.1.3 Indication of sensor 3 and sensor 4
4.1.4 Indication of other temperatures
4.1.5 Operating hours counter
Shows the current collector temperature.
• COL : collector temperature (1-collector-system)
COL:
Collector temperature
display range: -40 ... +482 °F
Shows the current tank temperature.
• TST : tank temperature (1-tank-system)
TST:
Tank temperatures
Display range: -40 ... +482 °F
Shows the current temperature of the corresponding addi-
tional sensor (without control function).
• S3
: temperature sensor 3
• S4
: temperature sensor 4
Please note:
S3 and S4 are only indicated if the temperature sensors
are connected (shown).
S3, S4:
Sensor temperatures
Display range: -40 ... +482 °F
Shows the current temperature of the sensor.
• TRF : temperature return flow
TRF:
other mea sured
tempe ratures
Display range: -40 ... +482 °F
h P1, h P2:
Operating hours counter
Display channel
The operating hours counter adds up the solar operating
hours of the respective relay (h P). Full hours are shown
on the display.
The operating hours added up can be reset. As soon as
one operating hours channel is selected, the symbol
in
permanently shown on the display. The button SET (3) must
pressed for approx. 2 seconds in order to get back into
the RESET-mode of the counter. The display-symbol
is
flashing and the operating hours will be set to 0. In order to
finish the RESET-procedure, the button
must be pressed
in order to confirm.
In order to interrupt the RESET-procedure, no button
should be pressed for about 5 seconds. The controller re-
turns automatically into the indicaton mode.
4.1.6 Heat quantity balancing
OHQM:Heat quantity balan-
cing
Adjustment range: OFF ... ON
Factory setting: OFF
A heat quantity balancing is possible for all systems in
conjunction with a flowmeter. You just have to activate the
option heat quantity balancing in the channel OHQM.
The volume flow readable at the flowmeter (l/min) must
be adjusted in the channel FMAX. Antifreeze type and
concentration of the heat transfer medium are indicated on
the channels MEDT and MED%.
FMAX:
Volume flow in l/min
Adjustment range 0 ... 20
in steps of 0,1
Factory setting 6,0