Resol DeltaSol BS Delta

DeltaSol
®
BS
© RESOL 06177 deltasol_bs1.monen.indd
| 14
4.1Various:
Pump starts for a short moment, switches-on/off
reapeatedly
Is the temperature diffe-
rence at the controller
too small?
no yes
Wrong placing of the
collector sensor?
yes
Change ∆Ton and ∆Toff
accordingly.
Mount the collector sen-
sor at solar feed flow
(warmest collector out-
put); use the immersion
sleeve of the respective
collector.
Pump starts up very late and stops working soon.
The temperature difference between tank and collector
increases enormously during operation; the collector cir-
cuit cannot dissipate the heat.
Collector circuit pump
defect ?
no yes
Heat exchanger calcified?
yes
Repair / Replace
Decalification
no
Heat exchanger plugged?
yesno
Cleaning
Heat exchanger too
small?
yes
New calculation of the
dimension.
no
Plausibility control of the
option tube collector spe-
cial function
Change ∆Ton and ∆Toff
accordingly.
Switch-on-temperatu-
re difference ∆Ton too
large?
no yes
Collector sensor unfavour-
able placed (e.g. contact
sensor instead of immersion
sleeve sensor?
o.k.no
Pump is overheated, but no heat transfer from collector
to the tank, feed flow and return flow are equally warm,
possibly also bubble in the tubes
Exhaust the system; incre-
ase system pressure to at
least static primary pres-
sure plus 0,5 bar; if neces-
sary continue to increase,
switch the pump on and
off for a short time
Air in the system?
no yes
Is the collector circuit
blocked at the dirt trap?
yes
Clean the dirt trap
If necessary activate tube
collector function.
yes
o.k.

Resol DeltaSol BS Specifications

General

Type	Solar Thermal Controller
Number of Inputs	4
Number of Outputs	2
Outputs	2 relay outputs
Enclosure Protection	IP20
Temperature Sensor Inputs	4 (Pt1000)
Mounting	Wall-mounted
Power Supply	220 … 240 V~