Solar and system controllers Solar and system controllers

Solar controller DeltaSol® BS series

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    DeltaSol® BS series
  • Drainback option
  • Heat quantity measurement
  • Function control
  • Commissioning menu
  • Unit °C and °F selectable
  • HE pump control via adapter

  • DeltaSol® BS/4, BS Plus
  • 3 basic system layouts (DeltaSol® BS/4), 10 basic system layouts
  • (DeltaSol® BS Plus) to choose from
  • Tube collector function, thermal disinfection function, time-controlled thermostat function
Unit °F and °C selectable!
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Solar controller DeltaSol® BS/2
DeltaSol® BS/2 - Solar controller with store temperature limitation
Article-no: 115 455 67 | Price bracket A

Solar controller DeltaSol® BS/2 - Full kit
DeltaSol® BS/2 - System controller for simple solar and heating systems incl. 3 Pt1000 sensors (1 x FKP6. 2 x FRP6)
Article-no: 115 455 77 | Price bracket A

Solar controller DeltaSol® BS Plus
Solar controller for solar thermal and combined systems
Article-no: 115 422 07 | Price bracket A

Solar controller DeltaSol® BS Plus - Full kit
System controller for simple solar and heating systems incl. 4 sensors Pt1000 (2 x FKP6, 2 x FRP6)
Article-no: 115 422 17 | Price bracket A

Solar controller DeltaSol® BS/4
DeltaSol® BS/4 - Solar controller with store temperature limitation
Article-no: 115 456 07 | Price bracket A

Solar controller DeltaSol® BS/4 - Full kit
DeltaSol® BS/4 - System controller for simple solar and heating systems incl. 3 Pt1000 sensors (1 x FKP6. 2 x FRP6)
Article-no: 115 456 17 | Price bracket A



The RESOL controllers for standard solar thermal systems. The DeltaSol® BS series provides a clear operating concept. The intuitive commissioning menu leads you through the initial configuration in only a few steps. The system selected is shown on the display, the status of the individual components is indicated by means of flashing codes. The DeltaSol® BS series is available in 3 versions, depending on the demands. Details concerning the number of the relays as well as additional functions are shown in the technical data.

Max. number of collector fields:
1 [BS/2, BS/4], 21 [BS Plus]
Max. number of stores:
1 [BS/2, BS/4], 21 [BS Plus]
Weather-compensated heating circuits:
-
External heat exchanger:
-
Speed control of standard pumps:
Speed control of HE pumps:
■ via integrated PWM output:
-
■ via PSW adapter:

Hardware
Temperature sensor inputs:
4
Sensor type:
Pt1000
Inputs for Grundfos Direct Sensors™:
-
Input for CS10 irradiation sensor:
-
Impulse inputs for V40 flowmeter:
-
Relay outputs in total:
1 [BS/2], 2 [BS/4, BS Plus]
■ semiconductor relays (speed control):
1 (1) [BS/2], 2 (1) [BS/4], 2 (2) [BS Plus]
■ electromechanical relay:
-
■ potential-free relay with changeover contact:
-
■ potential-free relay with normally open contact:
-
■ potential-free high-current relay:
-
PWM outputs:
-
■ convertible to 0-10 V:
-
Real-time clock:
[BS/4, BS Plus]
Data interface:
VBus®
Energy-efficient SMPS:
Power supply:
100 ... 240 V~

Heat quantity measurement
■ with flowmeter:
[BS/2, BS/4] ja 1[BS Plus]
■ with V40 flowmeter:
-
■ with Grundfos Direct Sensors™:
-

Software functions
Antifreeze function for solar circuit:
Collector minimum limitation:
Collector emergency shutdown:
Store maximum limitation:
Store set temperature:
-
Store emergency shutdown:
Drainback option:
Tube collector function:
[BS/4, BS Plus]
■ with adjustable time frame, interval:
[BS/4, BS Plus]
Additional ΔT control:
1 [BS Plus]
Thermostat function:
1 [BS/4, BS Plus]
Target temperature:
-
Heat dump function:
1 [BS/4, BS Plus]
Heat exchange:
1 [BS Plus]
Store loading in layers:
1 [BS Plus]
Priority loading:
1 [BS Plus]
■ Parallel loading:
1 [BS Plus]
■ Store sequence control:
1 [BS Plus]
■ Progressive loading:
1 [BS Plus]
■ Successive loading:
1 [BS Plus]
■ Spreaded loading:
1 [BS Plus]
Solar circuit bypass:
-
Irradiation-dependent bypass:
-
Irradiation switch:
-
Afterheating suppression:
-
Parallel relay:
-
Twin pump for solar circuit:
-
Cooling functions and cooling mode:
Flow rate monitoring:
-
Pressure monitoring:
-
Function control:
Error relay:
-
DHW hygiene functions:
■ DVGW legionella protection:
-
■ Thermal disinfection:
[BS/4, BS Plus]
DHW heating:
[BS/4, BS Plus]
Heating circuit return preheating:
1 [BS Plus]
Boiler loading/Zone loading:
-
Solid fuel boiler:
1 [BS Plus]
Mixer control weather-compensated:
-
Mixer control with target temperature:
-
Circulation:
-
Function block:
-
Heating circuit antifreeze function:
-
Chimney sweeper function for the heating circuit:
-
Room thermostats:
-
Inputs: 4 Temperatursensoren Pt1000
Outputs:
1 semiconductor relay (DeltaSol® BS/2)
2 semiconductor relays (DeltaSol® BS/4, DeltaSol® BS Plus)
Switching capacity: 1 (1) A 240 V~ (semiconductor relay)
Total switching capacity:
1 A 240 V~ (DeltaSol® BS/2)
2 A 240 V~ (DeltaSol® BS/4, DeltaSol® BS Plus)
Power supply: 100 ... 240 V~ (50 ... 60 Hz)
Supply connection: type Y attachment
Standby:
0,45 W (DeltaSol® BS/2)
0,74 W (DeltaSol® BS/4)
0,38 W (DeltaSol® BS Plus)
Temperature controls class: I (DeltaSol® BS/4, DeltaSol® BS Plus)
Energy efficiency contribution: 1 % (DeltaSol® BS/4, DeltaSol® BS Plus)
Mode of operation: type 1.C.Y action
Rated impulse voltage: 2.5 kV
Data interface: RESOL VBus®
VBus® current supply: 35 mA
Functions: differential temperature controller with adjustable system functions: function control according to BAFA guidelines, operating hours counter, tube collector function (DeltaSol® BS/4, DeltaSol® BS Plus), heat quantity measurement and pump speed control
Housing: plastic, PC-ABS and PMMA
Installation: wall mounting, mounting into patch panels is possible
Indication/Display: System-Monitoring-Display for visualization of systems, 16-segment and 7-segment display, 8 symbols for indication of system status and operating control lamp
Operation: 3 push buttons at the front
Ingress protection: IP 20 / EN 60529
Protection class: II
Ambient temperature: 0 ... 40 °C / 32 ... 104 °F
Pollution degree: 2
Dimensions: 172 x 110 x 49 mm / 6.77" × 4.33" × 1.92"
  1 system-dependent

Product photos

DeltaSol® BS Plus (6788 kB)
DeltaSol® BS (6786 kB)

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Customized and OEM versions are available on request. Please contact our sales team.
The cTUVus certification confirms that the controller is certified to UL 60730-1A and CSA E60730.1.
The cLCus certification confirms that the controller meets the demands of the UL 60730-2-9 and CSA - E60730-2-9-01 standards.
The cLCus certification confirms that the controller meets the demands of the UL 60730-1A and CSA E60730.1 standards.