49 VELUX
SECTION III: SOLAR CONTROL SYSTEM
SECTION III: SOLAR CONTROL SYSTEM
Oscillating break time / oscillating charge-
time / collector rising temperature:
The controller checks the stores regarding loading
facilities (switch-on difference). If the priority
store cannot be loaded, the lower-ranking store is
checked. If the lower-ranking store canbe charged,
this is effected by the so-called "oscillating charge
time" (
tRUN
). After the expiration of the oscillat-
ing charge time, loading is stopped. The controller
controls the increase of the collector temperature. If
this temperature increases by the rise temperature
of the collector (∆T-Col 2 K, fixed software value),
the expired break time is again reset to zero and
the oscillating break time (
tSP
) starts over again. If
there after the switch-on conditions of the prioritys-
tore are not reached, the loading of the lower-rank-
ing store will be continued. If the priority switch has
reached its maximum temperature, the oscillating
charge is not carried out.
4.1.16 Recooling function
If, as a result of of the system cooling
OCX
, the
store temperature is higher than the store maximum
temperature (
S MX
/
S1MX
/
S2MX
) and the collec-
tor temperature is at least lower than 5K, the solar
system continues running until the store is cooled
down to the adjusted store maximum temperature
(
S MX
/
S1MX
/
S2MX
) via collector and pipes. In
multi storage systems the recooling is generally
effected at store 1.
4.1.17 Tube collector special function
If the controller measures an increase of 2 K com-
pared to the collector temperature stored at last,
the solar pump is switched-on to 100% for about
30 seconds to detect the present temperature of
the medium. After the expiration of the solar pump
runtime the current collector temperature is stored
as a new reference value. If the measured tempera-
ture (new reference value) is again exceeded by 2 K,
the solar pump switches-on for 30 seconds.
OREC:
Option recooling
Adjustment range:
OFF ... ON
Factory setting: OFF
O TC:
Tube collector special-
function
Adjustment range:
OFF ... ON
Factory setting: OFF
Summary of Contents for TFF 200
Page 16: ......
Page 26: ...26 VELUX...
