Solar & system controllers

System controller DeltaSol<sup>®</sup> BX Plus

System controller DeltaSol^® BX Plus

The DeltaSol^® BX Plus is a system controller for multi-store solar and heating systems. The intuitive commissioning menu leads you through the system configuration by requiring the most important adjustments directly after connecting the controller. For an optimum overview, all sensor and relay allocations are listed in the service menu.

System controller for 2- and 3-store solar systems incl. PWM adapter cable and SD card

Article no.: 115 001 33 | Price bracket A | Price on request

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5 relay outputs and 8 inputs for Pt1000, Pt500 or KTY temperature sensors
Up to 2 extension modules via RESOL VBus^® (21 sensors and 15 relays in total)
Inputs for digital Grundfos Direct SensorsTM as well as for FRHd humidity sensors
Integrated control of up to 2 high-efficiency pumps via PWM outputs
Data logging, storing, easy transfer of controller adjustments prepared and firmware updates via SD card
Cooling over the heating circuit with condensation detection
Dew point calculation by means of the FRHd humidity sensor to avoid condensation
Simplified timer, 0-10 V boiler control and DHW preheating
Remote access to the heating circuits with room control unit(s) or the VBus^®Touch HC App
Extended optional functions, e.g. solid fuel boiler function with mixer and target temperature control

Max. number of collector fields:

3¹

Max. number of stores:

4¹

Weather-compensated heating circuits:

(2²)

External heat exchanger:

Speed control of standard pumps:

Speed control of HE pumps:

■ via integrated PWM output:

■ via PSW adapter:

Hardware

Temperature sensor inputs:

8 (9⁴)

Sensor type:

Pt1000, Pt500, KTY

Inputs for Grundfos Direct Sensors™:

digital

Input for CS10 irradiation sensor:

Impulse inputs for V40 flowmeter:

Relay outputs in total:

■ semiconductor relays (speed control):

4 (4)

■ 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:

Data interface:

VBus^®, SD card

Energy-efficient SMPS:

Power supply:

100 ... 240 V~

Heat quantity measurement

■ with flowmeter:

■ with V40 flowmeter:

■ with Grundfos Direct Sensors™:

VFD

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:

■ with adjustable time frame, interval:

Additional ΔT control:

Thermostat function:

Target temperature:

Heat dump function:

Heat exchange:

Store loading in layers:

Priority loading:

■ Parallel loading:

■ Store sequence control:

■ Progressive loading:

■ Successive loading:

■ Spreaded loading:

Solar circuit bypass:

Irradiation-dependent bypass:

Irradiation switch:

Afterheating suppression:

Parallel relay:

solar, free selectable

Twin pump for solar circuit:

Cooling functions and cooling mode:

Flow rate monitoring:

Pressure monitoring:

Function control:

VDI 2169

Error relay:

DHW hygiene functions:

■ DVGW legionella protection:

■ Thermal disinfection:

DHW heating:

Heating circuit return preheating:

Boiler loading/Zone loading:

Solid fuel boiler:

Mixer control weather-compensated:

ja⁵

Mixer control with target temperature:

Circulation:

Function block:

Heating circuit antifreeze function:

ja⁵

Chimney sweeper function for the heating circuit:

ja⁵

Room thermostats:

ja⁵

¹ system-dependent
² via EM Extension Module(s) in total
⁴ via convertible impulse inputs
⁵ via EM Extension Module(s)

Inputs: 8 (9) inputs for Pt1000, Pt500 or KTY temperature sensors, 1 V40 impulse input, inputs for 2 digital Grundfos Direct Sensors™, 1 input for a CS10 irradiation sensor
* For the Inputs Gd1 and Gd2, the following sensor combinations are possible: 1 x RPD, 1 x VFD / 2 x VFD, but with different measuring ranges only / 1 x VFD, 1 x FRHd / 1 x RPD, 1 x FRHd
Outputs: 4 semiconductor relays, 1 potential-free relay, 2 PWM outputs
PWM frequency: 512 Hz
PWM voltage: 11,0 V
Switching capacity:
1 (1) A 240 V~ (semiconductor relay)
4 (1) A 24 V V DC/ 240 V~ (potential-free relay)
Total switching capacity: 4 A 240 V~
Power supply: 100 – 240 V~ (50 – 60 Hz)
Supply connection: type X attachment
Standby: 0.73 W
Temperature controls class: I
Energy efficiency contribution: 1 %
Mode of operation: type 1.B.C.Y action
Rated impulse voltage: 2.5 kV
Data interface: RESOL VBus^®, SD card slot
VBus^® current supply: 60 mA
Functions: system controller for solar and heating systems. functions such as: Δt control, pump speed control, heat quantity measurement, operating hours counter for the solar pump, tube collector function, thermostat function, store loading in layers, priority logic, drainback option, booster function, heat dump function, thermal disinfection function, PWM pump control, function control according to VDI 2169
Housing: plastic, PC-ABS and PMMA
Mounting: wall mounting, mounting into patch panels is possible
Indication/Display: full graphic display, control lamp (directional pad) and background illumination
Operation: 7 push buttons
Ingress protection: IP 20 / IEC 60529
Protection class: I
Ambient temperature: 0...40 °C
Pollution degree: 2
Dimensions: 198 x 170 x 43 mm