Resol DeltaSol E Manual

Note:
It is not possible to adjust a temperature value
for the maximum collector temperature (Tcol-
max) which is higher than the collector emer-
gency shutdown temperature. There must be a
difference between these two temperatures of
at least 20 °Ra.
D e lt a S o l
®
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Collector cooling function:
Solar/Options/col. cooling
selection: “Yes”, “No”
factory setting: “No”
if you select “Yes”:
Solar/adj. values/Tcolmax
adjustment range: 170 ... 320 °F
factory setting: 230 °F
hysteresis 10 °Ra
The collector cooling function starts, when the adjusted ma-
ximum collector temperature is reached. If this temperature
is underrun by 10 °Ra, this function is switched off.
The collector is cooled via the heat transfer to the next
available storage tank. The numerically last tank is not used
(swimming pool protection or in the case of multi-tank
systems).
The pump output (provided that the function is active) is
controlled with maximum relative pump speed.
2-collector systems:
2 separated collector circuits (2 pumps):
The collector circuit which needs to be cooled is operated.
If one tank is being loaded by another collector, this loading
is continued.
shared collector circuit (1 pump): “Pump speed” depends on collector cooling which takes
priority.
Recooling:
Solar/Options/recooling
selection: “Yes”, “No”
factory setting: “No”
This function is used for keeping the system temperatures
and consequently the thermal load as low as possible.
If the temperatures of all tanks of the system have exceeded
the maximum temperature, the Tstmax for the first tank is
temporarily overidden to reduce the surplus energy via the
piping and the collector. Note Tstmax may be exceeded so
additional scald protection may be required.
This “circulation” is switched off once the maximum tank
temperature is underrun by 4 °Ra.
2-collector systems:
Both collector circuits are activated in a 2-collector system.
Combination with collector cooling function:
If the option “collector cooling” is activated in addition
to the recooling function, the behaviour of the recooling
function changes.
The objective is now to dissipate the energy supplied by
collector cooling.
If the temperature at the collector decreases by 10 °Ra below
that of the tank, the recooling function becomes active and the
loading circuit is again operated to cool the tank.
If the difference between collector and tank decreases
below 6 °Ra during that cooling period, the function is
switched off.
2-collector system:
In a 2-collector system, the collectors are operated separa-
tely, using the switch-on conditions described above.

Resol DeltaSol E Specifications

General

Brand	Resol
Model	DeltaSol E
Category	Controller
Language	English