my-PV 3 kW heating element for AC-THOR – screw-in heating element

Use excess PV power for hot water – with the my-PV 3 kW screw-in heating element Do you have an AC-THOR power manager or would you like to use your excess PV power for hot water? my-PV screw-in heating element 3 kW is an electric heating element that was specifically developed for stepless control by my-PV Power-Manager. What exactly is it? An electric heating element with 3 kW output that is installed directly into your existing hot water storage tank or buffer tank. In combination with a my-PV Power Manager (AC-THOR, AC-THOR 9s or SOL-THOR), it continuously converts your excess PV energy into heat. Here's what you should know about screw-in radiators Developed for my-PV Power-Manager The screw-in heating element was designed by the Austrian manufacturer my-PV specifically for use with their power managers. Its design allows for... Stepless control from 0-3.000 watts – designed for control by AC-THOR, AC-THOR 9s or SOL-THOR. What does that mean in concrete terms? Unlike conventional on/off heating elements, this combination also utilizes small amounts of excess PV power. Even with only 500 watts of available power, the heating element operates, instead of only activating above a minimum power level. Designed for longevity The design of the screw-in heating element ensures that low thermal surface loads the heating elements. This has the following effects: Longer service life thanks to gentle operation Less limescale buildup compared to conventional heating elements Reliable continuous operation possible Users report in forums that the system has operated smoothly for several years without any failures or performance losses. Uncomplicated installation The screw-in heating element can be installed as follows: Installation in the storage unit: Standard 1,5 inch thread fits most hot water and buffer tanks Connection to AC-THOR: Direct connection via 2,8 m Schuko plug – no additional cabling required Set temperature: Set the desired target temperature using the rotary knob (34-78°C) Complete: The AC-THOR automatically detects the shutdown and goes into standby mode. Note: The manufacturer recommends installation by a professional. However, installation is straightforward if a 1,5-inch connection is already present. This is how the combination works in practice. With AC-THOR or AC-THOR 9s (grid-connected) The AC-THOR continuously measures the PV surplus and controls the screw-in heating element. stepless, accurate to the secondAs soon as excess solar power is available, it is immediately converted into heat and stored in the storage unit. Practical example: 10:00 AM: 800W surplus → Heating element running at 800W 11:00 AM: 2.500W surplus → Heating element running at 2.500W 12:00 PM: Cloudy, only 300W excess power → Heating element running at 300W Result: Continuous use of the PV surplus With SOL-THOR (off-grid) In off-grid systems, the SOL-THOR is used the entire yield The PV modules are used directly for heat generation. The screw-in heating element converts the direct current into heat without conversion losses. Important for SOL-THOR application: The Schuko plug can be removed without voiding the warranty, as the SOL-THOR requires direct wiring. temperature control You set the desired target temperature (approx. 34-78°C) using the rotary knob. integrated safety temperature limiter At 98°C, it protects against overheating. When the water reaches the set temperature, the thermostat switches off – the AC-THOR detects this automatically and goes into standby mode. Technical Details & Applications Applications Warmwasserbereitung: Drinking water storage tank (fresh water storage tank) domestic hot water storage tank Electric boiler Heating support: Buffer storage tanks for pellet, gas or oil heating systems Combined storage tank Layered storage Typical use cases: Summer hot water preparation: In summer, the main heating system remains off; the heating element takes over hot water preparation using PV electricity. Heating support during the transition period: In spring and autumn, the heating element relieves the pellet or gas heating system on sunny days. Backup function: In the event of a main heating system failure, the heating element can continue to provide hot water via mains power (optional). Combination with solar thermal energy: In existing solar thermal systems, the heating element supplements heat generation when solar radiation is insufficient. Compatibility Compatible with: my-PV AC-THOR (for 3 kW) my-PV AC-THOR 9s (for up to 3x 3 kW) my-PV SOL-THOR (off-grid) Suitable accessories: my-PV AC-THOR Power Manager my-PV AC-THOR 9s Power Manager my-PV SOL-THOR DC Power Manager my-PV WiFi Meter Additional temperature sensors You can find other compatible manufacturers and integration instructions here. Technical information Maximum power: 3.000 W Heating capacity: 0 – 3.000 W when controlled by AC•THOR Mains connection: Single-phase, safety plug, 230 V, 50 Hz Connection cable: 2,8 m operating temperature rangeThe ambient temperature at the housing must not exceed 35 °C. Protection class: IP45K Dimensions (W x H x D): 88 x 88 x 518 mm Weight 1,65 kg Heating cartridge connection: 1 1/2 inches Heat-free zone: 130 mm from the sealing surface Warranty: 2 years (excluding calcification) Tightening torque: 60 Nm Max. operating pressure: 10 bar Safety temperature limiter: 98 ° C Version without thermostat: 105 ° C Installation position: horizontal Target temperature range: approx. 34 – 78 °C Version without thermostat: according to AC•THOR setting Frequently Asked Questions (FAQ) Will the screw-in heating element fit in my storage tank? The screw-in radiator has a Standard 1,5 inch thread It fits most standard hot water and buffer storage tanks. The heating element is approximately 39 cm long from the sealing surface, and the unheated zone begins 13 cm from the sealing surface. Before purchasing, please check whether your storage tank has a suitable connection or whether an adapter for the inspection port can be used. Can I use the heating element without the my-PV Power Manager? The screw-in heating element also functions as a normal electric heating element. stepless control However, optimal use of excess PV power is only possible in combination with a my-PV Power Manager. Without a Power Manager, it runs continuously at full power until the thermostat reaches the set temperature. What power output do I need – 3 kW or 9 kW? That depends on your setup: 3 kW screw-in heating element: For AC-THOR (0-3 kW) and SOL-THOR, suitable for normal hot water preparation in single and two-family houses 9 kW screw-in heating element: For AC-THOR 9s, useful for larger storage tanks, higher heat demand, or if you want to combine multiple heating elements. Orientation: For average single-family homes with PV systems up to 10 kWp, the 3 kW heating element is usually sufficient. How quickly does the heating element heat the water? To heat 100 liters of water by 10°C, approximately... 1,16 kWh required. With a 3 kW heating element, that takes about 23 minutes at full powerFor a typical 300-liter hot water storage tank, this means: from 20°C to 60°C (40°C temperature difference): just under 5 hours at full power. In practice, heating with excess PV power usually runs in the background over several hours, which is sufficient since the hot water remains stored in the tank. What about calcification? thanks to the low thermal surface stress The my-PV screw-in heating element is less prone to limescale buildup than conventional heating elements with high surface temperatures. Users report years of trouble-free operation. However, in areas with very hard water (over 14°dH), regular checks are still recommended. Do I need an electrician for the installation? The manufacturer recommends installation by a professional. electrical connection However, connection is simple via a standard plug to the AC-THOR. Mechanical installation in the storage tank requires draining the water and screwing in the heating element with the appropriate tool. This is doable if you have the necessary skills and the connection is already in place; however, if you are unsure, you should consult a qualified electrician. How long does a screw-in radiator last? Thanks to the high-quality workmanship and gentle operating mode, users report... trouble-free operation for many yearsThe manufacturer's warranty is 2 years. The actual lifespan depends on water quality and usage intensity, but is typically 10-15 years or more. What is the guarantee? The screw-in radiator comes with the Standard manufacturer's warranty of 2 years from my-PV. Downloads Downloads my-PV heating element 3 kW for AC-THOR My-PV-Heizstab-3-kW-Datenblatt My-PV Heating Element 3-kW Operating Instructions