RESOL DeltaSol BX Plus Controller Data Sheet 
Features:
- 2 inputs for digital Grundfos Direct Sensors™
- 5 relay outputs, 8 sensor inputs for Pt1000, Pt500 or KTY temperature sensors, 1 impulse input V40
- 2 PWM outputs for speed control of high-efficiency pumps
- Data logging, storing and firmware updates via SD memory card
- Pre-programmed optional functions
- Up to 2 Extension Modules via RESOL VBus® connectable (21 sensors and 15 relays in total)
- Drainback function
- Time-controlled thermostat function
- Thermal disinfection function
- VBus® menu for configuring remote displays
Technical Data:
Inputs:
8 (9) inputs for Pt1000, Pt500 or KTY temperature sensors,
1 V40 impulse input,
2 digital Grundfos Direct Sensors™ inputs
1 input for a CS10 irradiation sensor
For the digital inputs, the following sensor combinations are possible:
- 1 x RPD, 1 x VFD
- 2 x VFD, but with different measuring ranges only
Outputs: 4 semiconductor relays, 1 dry-contact 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 240 V~ (dry-contact relay)
Total switching capacity: 4 A 240 V~
Power supply: 100 ... 240 V~, 50 ... 60 Hz
Supply connection: type Y 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: delta T control, pump speed control, energy metering, operating hours counter for the solar pump, evacuated tube collector function, thermostat function, vertical tank loading, priority logic, drainback option, booster function, heat dissipation function, thermal disinfection function, PWM pump control, functionality control
Housing: plastic, PC-ABS and PMMA
Installation: wall mounting, mounting into patch panels is possible
Indication/Display: Full graphic display, control lamp (directional pad) and background illumination
Operation: 7 push buttons at the front
Ingress protection: IP 20 / EN 60529
Protection class: I
Ambient temperature: 0 ... 40 °C / 32 ... 104 °F
Pollution degree: 2
Dimensions: 198 x 170 x 43 mm / 6.69" × 7.79" × 1.69"
