How to wire the Dualsun SLL solar controller for a ISWH pool discharge system?
To activate and deactivate the ISWH solar circulator (R1), the DualSun SLL controller calculates the temperature difference between :
the panel temperature sensor S1
the hot water tank temperature sensor S2
To activate and deactivate the solar swimming pool discharge pump (R2), the DualSun SLL controller calculates the temperature difference between :
the panel temperature sensor S1
the pool water temperature sensor S4
Set system parameter (SYS) = 6
Long press on validation key
Turn the rotary actuator to SYS
Activate the parameter change by pressing the Enter key once
Turn the rotary actuator to choose the system number (n°6)
Confirm your choice with the confirmation key
Escape key to return to the menu
S1 probe
The S1 probe (4 mm) is supplied with the essential kit, delivered with the DualSun SPRING panels
Position of S1: in the exchanger hole at the outlet of the last panel
S2 probe
The S2 probe (6 mm) is supplied with the DualSun SLL regulation
Position of S2: at the bottom of the tank in a 6 mm thermowell
S4 probe
The S4 probe is supplied with the pool discharge accessories kit
Position of S4: mounted with thermal paste and clamp on the surface of the swimming pool filtration pipe, after the pump. Wrap the probe with thermal adhesive tape to insulate it from ambient air
S3 probe (optional)
If a KM2 T-Box has been ordered, S3 is supplied with the T-Box.
Position of S3: at the top of the tank (6 mm thermowell probe)
Operation of the solar regulation mode:
As soon as the temperature difference between the sensors S1 and S2 or S4 is greater than the values set for the pump start (R1 or R2), the pump is activated and the respective storage tank is heated at most until its temperature reaches the set maximum threshold or nominal value.
The priority operation first triggers the heating of the first storage tank.
CHAU1 & CHAU2 ➡ DTO = 6 = Delta activation temperature (S1 - S2) or (S1 - S4)
CHAU1 & CHAU2 ➡ DTF = 2 = Delta deactivation temperature (S1 - S2) or (S1 - S4)
CHAU1 ➡ R NOM1 = 45 = Nominal temperature of hot water tank
CHAU1 ➡ R MAX1 = 80 = Maximum hot tank temperature
CHAU2 ➡ R NOM2 = 30 = Nominal pool water temperature
CHAU2 ➡ R MAX2 = 32 = Maximum pool water temperature