Each 3kw heater element only sees a maximum power of 1.5kw and should last many years. This is a straight-forward, cost-effective project for PV Hotwater, It has no Grid connection issues and is within the capability of someone competent DIYer with some electronics skills. © Apricus Solar Co. Ltd. All Rights Reserved, For any urgent inquiries please call your closest. The LoadMaster Project is based upon an Arduino Nano and the circuits basic architecture is shown below:-. This Solar Hot Water Controller is an intelligent controller allowing up to 3 pumps for different zones as such as a pool, spas, radiators, hot water heated towel rails, ring mains etc. Controller Board to suit Hills Esteem II - NO LONGER AVAILABLE, Hills Apollo Exceed - NO LONGER AVAILABLE, Senztek SolaStat-Plus 1-2 Sensor Controller (includes free thermal heat paste), Senztek SolaStat-Plus 1-3 Sensor Controller (includes free thermal heat paste), Senztek SolaSmart Plus Controller (includes free thermal heat paste), Senztek AlphaStat-Plus Hot Water Controller, Senztek SolaSmart Lite Controller (includes free thermal heat paste), Senztek SolaStat ST Plus 2-3 Sensor Controller (includes free thermal heat paste), Replacement Solar Hot Water Controller to suit Chromagen - DIFT2, RESOL DeltaSol® BS Plus Full Kit (This is not suitable for Apricus and Thermann units, you need to use the BS/4), Senztek SolaSmart Plus Controller 3RD including Touch Display (includes free thermal heat paste), Full Gauge Microsol RI Solar Hot Water Controller, Apricus RESOL DeltaSol AX (used in early model Apricus solar hot water systems), Replacement Solar Hot Water Controller ISC-AC2-A2F to suit Rinnai Systems using this type of controller, Replacement Solar Hot Water Controller ISC-AC2-A3C to suit Modern Solar System, Replacement Solar Hot Water Controller to suit Solar Lord Solar Hot Water System HWC-2, RESOL DeltaSol® BS/4 (1-2 sensors) with external housing*, RESOL DeltaSol® BS/4 (1-3 sensors) with external housing*, RESOL DeltaSol® BS/4 to suit Apricus solar hot water systems (1-3 sensors), RESOL DeltaSol® BS/4 to suit Conergy AusCaps solar hot water systems (1-2 sensors), RESOL DeltaSol® BS/4 to suit DUX AusCaps solar hot water systems (1-2 sensors), RESOL DeltaSol® BS/4 to suit Stratco solar hot water systems (1-2 sensors), RESOL DeltaSol® BS/4 to suit Thermann solar hot water systems (1-3 sensors), Senztek SolaSmart Lite Controller to suit Heavenly Solar hot water systems (includes free thermal heat paste), Senztek SolaSmart Plus Controller to suit Edson solar hot water systems (includes free thermal heat paste), Senztek SolaSmart Plus Controller to suit SolarArk systems (includes free thermal heat paste), Senztek SolaStat ST Plus 1-2 Sensor Controller to suit Apricus systems (includes free thermal heat paste), Senztek SolaStat ST Plus 1-3 Sensor Controller to suit Apricus systems (includes free heat paste), Solar Hot Water Controller ISC-AC2-A3C to suit Oz Roll, Solar Hot Water Controller ISC-AC2-A3F to suit Modern Solar systems, Solar Hot Water Controller ISC-AC2-A3F to suit Oz Roll. In the Downloads section (at end) a LoadMaster design spreadsheet includes an approximate performance calculator. Visit them online for more great content like this. Even in November in the UK, a 3kW array provides a high percentage of our hot water usage (2 person household). LoadMaster - MPPT PV Hot Water Controller V80 - Arduino. Wifi Modules enable LAN or Internet remote access (Telnet). PV Panels have a 25-year life guarantee and there is no reason this systems will not last beyond 25 years. Your review *document.getElementById("comment").setAttribute( "id", "a10c57ffe9413b389f1babea6f2e86e9" );document.getElementById("h73954ea8b").setAttribute( "id", "comment" ); Country / Region *Select a country / region…AustraliaNew ZealandUnited States (US)Update country / region. This solar controller allows for maintenance free operation of your solar thermal system. This solar controller can be used to monitor and operate the solar thermal system, control various devices via it's multiple relay conrol, and function as a thermostat (time controlled). Functionality for Single Hot Water Output only. Electrolytic caps are not suitable. The iSolar BX solar controller can be used to control your solar hot water or solar space heating systems, or can be customized to control any number of other solar related applications. PV systems are also more versatile than solar thermal ones, any excess electrical energy may easily be used for a variety of other purposes. Includes Software Serial data transmission for remote Nextion 3.2" enhanced Display. A small value shunt resistor and voltage divider enable the Arduino to monitor the current and voltage (and hence power) being generated by the PV array. The power side of this circuit was modeled using Ti Tina. Functionality for Single Hot Water Output only. Of course, on heavily overcast, rainy days solar output will be low. Circuits such as the LoadMaster are designed to provide Maximum Power Point Tracking (MPPT), they continuously adjust the effective load impedance presented to the solar panels such that the maximum available power is always extracted under any solar conditions and at any time of the day. In winter months some days will be significantly higher or lower than the average, this is called weather. My Direct 150L cylinder has the two Immersion heater elements wired in parallel. Functionality for Single Hot Water Output only.

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