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DeltaSol BS/1
Digital differential controller with four temperature sensor inputs (two temperature sensors provided) and one standard relay output. Ideal for controlling a basic solar installation having one storage tank and one circulating pump. Please click here for the instruction manual.
Features include:
• 2-line illuminated LC digital display with integrated system schematic
• Flashing symbols for sensors, pumps and valves
• Easy adjustment of control parameters via three button keypad
• Frost protection, system cooling, and special evacuated tube collector operating functions
• Energy measurement capability
• VBus® capable for data communication and remote service, bidirectional communication to remote modules, PCs, and data loggers. The controller can be configured comfortably by PC with the RESOL Service Center Software.
Dimensions: 173 x 110 x 47 mm
Power: 115 VAC / 60 Hz
Controller sold with (2) two Pt1000 temperature sensors.
1x FKP6 Sensor ( -580 to 3560F )
1x FRP6 Sensor ( -140 to 1760F )


DeltaSol BS/3
Digital differential controller with four temperature sensor inputs (3 temperature sensors provided) and one standard relay output. Ideal for controlling a solar installation having one storage tank and one or two circulating pumps or one pump and one valve. Please click here for the instruction manual.
Features include:
• 2-line illuminated LC digital display with integrated system schematic
• Flashing symbols for sensors, pumps and valves
• Easy adjustment of control parameters via three button keypad
• Frost protection, system cooling, and special evacuated tube collector operating functions
• Energy measurement capability
• Thermostat function to divert excess heat or supply backup heat
• VBus® capable for data communication and remote service, bidirectional communication to remote modules, PCs, and data loggers. The controller can be configured comfortably by PC with the RESOL Service Center Software.
Dimensions: 173 x 110 x 47 mm
Power: 115 VAC / 60 Hz
Controller sold with (3) three Pt1000 temperature sensors.
1x FKP6 Sensor ( -580 to 3560F )
2x FRP6 Sensors ( -140 to 1760F )

DeltaSol BS PLUS
Digital differential controller with four temperature sensor inputs (4 temperature sensors provided) and two standard relay outputs. Ideal for controlling and monitoring a solar installation having one or two storage tanks, East and West collectors, one or two circulating pumps or one pump and one valve. Nine system arraignments are available. Please click here for the instruction manual.
Features include:
• 2-line illuminated LC digital display with integrated system schematic
• Flashing symbols for sensors, pumps and valves
• Easy adjustment of control parameters via three button keypad
• Frost protection, system cooling, and special evacuated tube collector operating functions
• Energy measurement capability
• Thermostat function to divert excess heat or supply backup heat
• VBus® capable for data communication and remote service, bidirectional communication to remote modules, PCs, and data loggers. The controller can be configured comfortably by PC with the RESOL Service Center Software.
Dimensions: 173 x 110 x 47 mm
Power: 115 VAC / 60 Hz
Controller sold with (3) three Pt1000 temperature sensors.
2x FKP6 Sensors ( -580 to 3560F )
2x FRP6 Sensors ( -140 to 1760F )

DeltaSol DB3
Digital differential drainback controller with four temperature sensor inputs (3 temperature sensors provided) and two standard relay outputs. Ideal for controlling and monitoring a solar drainback installation having one tank and one pump with an additional booster pump or backup heat function. Please click here for the instruction manual.
Features include:
• 2-line illuminated LC digital display with integrated system schematic
• Flashing symbols for sensors, pumps and valves
• Easy adjustment of control parameters via three button keypad
• Energy measurement capability
• VBus® capable for data communication and remote service, bidirectional communication to remote modules, PCs, and data loggers. The controller can be configured comfortably by PC with the RESOL Service Center Software.
Dimensions: 173 x 110 x 47 mm
Power: 115 VAC / 60 Hz
Controller sold with (3) three Pt1000 temperature sensors.
1x FKP6 Sensor ( -580 to 3560F )
2x FRP6 Sensors ( -140 to 1760F )

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