DeltaSol® BS/2
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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.
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
| 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 | |
| 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 | |
| DHW heating | |
| 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 | - |
DeltaSol® BS/2
Inputs: 4 Pt1000 temperature sensors
Outputs:
1 semiconductor relay (DeltaSol® BS/2)
2 semiconductor relays (DeltaSol® BS/4, DeltaSol® BS Plus)
1 semiconductor relay (DeltaSol® BS/2)
2 semiconductor relays (DeltaSol® BS/4, DeltaSol® BS Plus)
Switching capacity: 1 (1) A 100 ... 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
Power consumption:
Standby:
0.45 W (DeltaSol® BS/2)
0.74 W (DeltaSol® BS/4), 0.38 W (DeltaSol® BS Plus)
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
Mounting: wall mounting, mounting into patch panels is possible
Indication/Display: System-Monitoring for visualisation of systems, 16-segment and 7-segment display, 8 symbols for indication of system status and operating control lamp
Operation: 3 pushbuttons at the front
Ingress protection: IP 20 / IEC 60529
Ambient temperature: 0 ... 40 °C
Pollution degree: 2
Dimensions: 172 x 110 x 49 mm
Bus:
Maximum altitude: 2000 m above MSL
Fuse: T4A
Solar system with 1 store
KM2 Communication module
Communication module incl. network cable and mains adapter, VBus® cable pre-connected
HR230 Auxiliary relay
Single-phase, suitable for all RESOL controllers
SD3 Smart Display
Display module with 3 displays for collector and store temperature as well as for heat quantity (suitable for all DeltaSol® controllers equipped with a VBus®)
VBus®/USB interface adapter
PC-connection set for RESOL controller with VBus®