MY-PV Heating Controls

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AC-THOR

Enables PV power to be used for hot water or other electrical space heating. Single or three phase models for different applications.

MY-PV ELWA

Three different models are available for different applications. Each includes control unit and 45cm long 1.5" boss immerssion element. Desired water temperature can be set with a rotary dial.

MY-PV AC•THOR

The AC•THOR is a Photovoltaic-Power-Manager for hot-water and space-heating, providing linear control of electric heatsources depending on excess PV power and heat demand. It communicates via Ethernet with inverters, battery systems and smart home controllers and receives information on how much photovoltaic energy is available.

Compatible with the below signal sources for export measurement:

  • Carlo Gavazzi (Approved for meter type EM24 with Modbus TCP)
  • MY-PV Power Meter
  • SMA Sunny Home Manager
  • SolarEdge (Sunspec must be enabled on SolarEdge)
  • Victron (via Modbus)
  • + more

In off-grid systems it can respond to frequency rise to divert surplus energy once the battery is full into heating loads.

Includes:

  • 0-3kW linear output.
  • 16A relay output.
  • Colour touchscreen display
  • Warranty: 2 years
  • Made in Austria
MY-PV AC-THOR

MY-PV AC•THOR 9s

The AC•THOR 9s is a Photovoltaic-Power-Manager for hot-water and space-heating for use in 3-phase systems.

Expanding on the features of the standard AC•THOR this 9s version can deliver up to 9kW, has 3 controllable outputs and is suitable for 3-phase immersion heaters (with common neutral conductors) or with three separate 3kW single phase heaters run on separate phases.

Compatible with the below signal sources for export measurement:

  • Carlo Gavazzi (Approved for meter type EM24 with Modbus TCP)
  • MY-PV Power Meter
  • SMA Sunny Home Manager
  • SolarEdge (Sunspec must be enabled on SolarEdge)
  • Victron (via Modbus)
  • + more

In off-grid systems it can respond to frequency rise to divert surplus energy once the battery is full into heating loads.

Includes:

  • 0-9kW linear output
  • Colour touchscreen display
  • Warranty: 2 years
  • Made in Austria
MY-PV AC-THOR 9s with Terminals

MY-PV Power Meter

The MY-PV Power Meter allows excess solar generation (normally exported to the grid) to be automatically diverted to heaters in order to maximise the self-consumption of your PV system. It detects the energy flows of the PV system and transmits the excess energy data to the PV Power Manager AC•THOR, AC•THOR 9s.

It includes an Ethernet interface for communication with the AC•THOR or AC•THOR 9s via a router or network switch or can be directly connected using a cross-over network cable. Alternatively, connection can be via standard powerline adapters.

Includes 3 x 60A CT clamps (other CT clamps can also be used).

Safety Note: CTs must never be operated open-circuit (secondary coil wires disconnected) once installed, whilst on a current-carrying conductor, as dangerously high voltages may occur under these circumstances.

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Product Code Description Retail Price
(ex VAT)
MY-PV-POWERMETER MY-PV AC 3ph power meter c/w 3 x 60A CT clamps £202.76
MY-PV-CT/100 100A Split CT for MY-PV Energy Meter, 16mm dia cable £13.64

MY-PV ELWA DC Immersion Heater

For direct connection to a dedicated PV system using 6-8 standard 60 cell modules. The DC current from the photovoltaic modules is controlled with a MPP-Tracker for a maximum power output of the immersion heater (up to 2kW). No connection to a grid supply or inverter is required.

Boost backup-function can use an AC supply to heat water in the event of bad weather (1.7kW).

Advantages
  • Linear power control 0 - 2.000W
  • 100 % self-consumption of solar power
  • No permission for a grid connection required
  • Easy to install, no maintenance costs
  • Easier and cheaper than solar-thermal systems
  • 2 ELWAs enable stratification charge
  • Also works during grid-blackouts
  • Hot-Water securing (Boost-Backup) included
MY-PV ELWA Solar Immersion Heater - Direct DC
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Product Code Description Retail Price
(ex VAT)
ELWA-DC PV Direct DC water heating unit £618.95

MY-PV AC ELWA-F Frequency Responsive Solar Immersion Heater

For use in off-grid systems to use surplus energy once a battery has become fully charged.

The ELWA-AC-F detects frequency rise of the inverter, if there is excess energy available and uses it for heating water.

Advantages
  • AC ELWA-F uses energy that cannot be stored in the battery
  • Linear power control 0 - 3.000W for maximum self-consumption
  • The AC ELWA-F needs no communication cables to the inverter
  • Sinusoidal current consumption (no thyristor)
  • For AC off-grid systems with frequency-shift inverters eg. Sunny Island & Victron
MY-PV AC ELWA-F Solar Immersion Heater - Frequency Responsive
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Product Code Description Retail Price
(ex VAT)
ELWA-AC-F PV AC water heating unit - frequency controlled £425.00