Solar and heating controllers
Solar controller DeltaSol® AL
The DeltaSol® AL solar controller is
a temperature differential controller that
offers all the vital functions for a standard
solar thermal system. the controller is
equipped with the comprehensive Systemmonitoring-
display, which shows the system
parameters quickly and easily.
For data communication, the controller has
RESOLVBus® to which additional modules
such as remote displays or dataloggers
can be connected. the DeltaSol® AL
offers heat quantity measurement, a solar
operating hours counter and can be switched
between °C and °F. Operation and
function control are simple as usual.

cTUVus certified!
(pump speed control):
(e.g. heat exchange):
oscillating loading:
Inputs: 3 Pt1000 temperature sensors
Outputs: 1 electromechanical relay with change-over contact
Switching capacity: 4 (1) A 240 V~ (electromechanical relay)
Total switching capacity: 4 A 240 V~
Power supply: 100 ... 240 V~ (50 ... 60 Hz)
Supply connection: type Y attachment
Power consumption: < 0.7 W (standby)
Mode of operation: type 1.B action
Rated impulse voltage: 2.5 kV
Data interface: RESOL VBus®
VBus® current supply: 35 mA
Functions: Function control, operating hours counter, tube collector function and heat quantity measurement. The controller is additionally equipped with a time-controlled thermostat function.
Housing: plastic, PC-ABS and PMMA
Mounting: wall mounting
Indication/Display: LCD graphic system-monitor for visualisation, 16-segment display, 7-segment display, 8 symbols for system states, background illumination and operating control lamp
Operation: 3 push buttons and 1 slide switch at the front of the housing
Ingress protection: IP 20 / IEC 60529 (with IP 22 seal)
Ambient temperature: 0 ... 40 °C
Pollution degree: 2
Dimensions: 144 x 208 x 43 mm
Bus: RESOL VBus® (max. current drain 35 mA)
Protection class: II
![]() The number of VBus® accessories that can be connected to one controller depends on the sum of their current consumption and on the current supply of the controller VBus®. |
|
|---|---|
| Device | Maximum current consumption |
| VBus®/PWM interface adapter | 6,5 mA |
| VBus®/USB interface adapter | 6,5 mA |
| VBus®/LAN interface adapter | 6,5 mA |
| Datalogger DL2 | 1,5 mA |
| Datalogger DL3 | VBus® 1-5: 10 mA VBus® 6: 0.5 mA |
| Smart Display SD3 | 17,5 mA |
| GA3 Large Display | 1 mA |
| AM1 alarm module | 16,5 mA |
| HKM3 | 1 mA |
| EM | 1 mA |
| STA-W | 12 mA |
Solar controller DeltaSol® AL
Solar controller for standard solar thermal systems
Article-no: 115 212 63 | Price bracket A
151.90 €
Solar controller DeltaSol® AL - Full kit
Solar controller for standard solar thermal systems incl. 2 sensors (1 x FKP6, 1 x FRP6)
Article-no: 115 212 73 | Price bracket A
175.70 €
All prices are calculated ex works, in EUR and do not include VAT.






















