PV heating

rosenthal design 
DeltaTherm<sup>®</sup> PV MAX

DeltaTherm® PV MAX

Whether in new or existing buildings, the DeltaTherm® PV MAX combines Power to Heat and heating control. It detects excess PV current reliably and calculates the power available. Furthermore, it distributes the current available in a modulating manner to up to 3 electric immersion heaters with a total power of 9000 W, controls an SG-ready heat pump and a charging station for electric vehicles as needed. Numerous optional functions can be activated with extension modules.


Power-to-Heat controller incl. 3 Pt1000 sensor (3x FRP6)
Article no.115 007 33 | Price bracket  B | Price on request
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  • Suitable for all grid-connected PV systems
  • Maximisation of self-consumption
  • Household current priority
  • Stepless control of up to 3 electric immersion heaters
  • Control of a heat pump
  • Control of a wallbox
  • Time-controlled backup heating (with mains current)
  • Optional functions via extension modules: e.g. solid fuel boiler, heat exchange
  • Smart Remote access (optional)
  • Access to the VBus.net visualisation portal via LAN
DeltaTherm® E sensor
Inputs: 3 voltage inputs and 3 current inputs for SW16 current sensors (DeltaTherm® E sensor XL: SW24)
Power supply: 100 – 240 V~ (50 – 60 Hz)
Supply connection: Y
Standby: < 1 W
Rated impulse voltage: 1,0 kV
Data interface: RESOL VBus®
Functions: energy measuring unit
Housing: plastic, PC (UL 94 V-0)
Mounting: DIN rail in the domestic distribution board
Indication/Display: 2 operating control LEDs
Ingress protection: IP 20 / EN 60529
Protection class: II
Ambient temperature: 0 … 40 °C
Pollution degree: 2
Dimensions: 71 x 90 x 58 mm

DeltaTherm® PV MAX
Inputs: 5 Pt1000 temperature sensors (2 of them convertible to switch), 1 analogue input for Grundfos Direct SensorTM or FRH humidity sensor
Outputs: 3 outputs for electric immersion heaters (variable power control up to 9 kW), 2 potential-free extra-low voltage relays and 2 PWM outputs (convertible to 0-10 V)
Switching capacity: 13 A 240 V~ (output for electric immersion heater)
1 A 30 V ⎓ (potential-free relay)
Total switching capacity: 3 x 13 A 240 V~
Power supply: 3-phase with PE and neutral conductor (100 – 240 V~ (50 – 60 Hz)
Supply connection: X
Standby: approx. 1 W
Mode of operation: type 1.B.C. action
Rated impulse voltage: 2,5 kV
Data interface: RESOL VBus®, MicroSD card slot, LAN
VBus® current supply: 35 mA
Functions: control of 3 electric immersion heaters, backup heating with mains current, control of a heat pump / wallbox, numerous optional functions, Smart Remote
Housing: sheet metal, powder-coated
Mounting: wall mounting
Indication/Display: full graphic display, operating control LED
Operation: 3 buttons
Ingress protection: IP 20 / EN 60529
Protection class: I
Ambient temperature: 0 … 40 °C
Pollution degree: 2
Dimensions: 226 x 302 x 84 mm
Maximum altitude: 2000 m above MSL
Relative humidity: 10 … 90 %
incl. sensor module, 3 current sensors and 3 Pt1000 sensor (3x FRP6)

DeltaTherm® PV MAX – Full kit

incl. sensor module, 3 current sensors and 3 Pt1000 sensor (3x FRP6)
Article no.: 115 007 23 |  Price bracket B |  Price on request
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