4eco immerSUN Installation And User Manual - page 10

Manual is about: Water heating for your PV system

Summary of immerSUN

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    Water heating for your pv system installation and user guide v1.3.

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    2.

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    Contents 1 overview 4 2 technical specifications 5 3 installation 6 3.1 mounting 6 3.2 electrical connections 7 3.3 clamp installation 8 3.4 wiring diagrams 9 3.5 using the immersun with a dual-rate electrical supply 13 4 installer settings 14 4.1 dip switch settings 14 4.2 installation setup 15 4.3...

  • Page 4: Key Features

    1. Overview thank you for choosing immersun. This intelligent device is a sensible and practical addition to your pv or wind microgeneration system. Water is heated via your existing immersion heater, using surplus power that would otherwise have been exported to the grid. Please read and follow thi...

  • Page 5: Electrical Specifications

    2. Technical specifications electrical specifications description minimum nominal maximum supply voltage (vac) 198 230 264 supply frequency (hz) - 50hz - load current (a) - 13 16 load size (w) 250 3000 3200 relay contact voltage (vac) - - 250 relay contact current (a) - - 16 clamp current (a) - - 10...

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    3. Installation 3.1 mounting often, the most suitable location for the immersun is near to the consumer unit. Usually all the connections required are available here. The following should be considered when deciding upon the most suitable location: • close to the main incoming mains electrical suppl...

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    3.2 electrical connections electrical connections should be made only by a competent person. Do not attempt to install this unit if you are not a qualified or an experienced electrician. Installation may involve alterations to fixed wiring and opening the consumer unit, there is risk of death by ele...

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    3.3 clamp installation correct positioning of the current sensor clamp is vital to the operation and efficiency of the immersun. Incorrect installation may result in increased electrical costs to the user. The clamp should be located at the main incoming grid supply to the building. This will be the...

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    3.4 wiring diagrams single heater wiring most installations will be a single immersun connected to a single heater. This is shown in the diagram below. Alternative wiring method if the immersun is located close to the consumer unit, it may be simpler to use the alternative wiring option using 4-core...

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    As an alternative to using two flex cables, one 4-core cable may be used for the mains wiring. Two heaters can be controlled by using the multi-function relay. The heaters need not be in the same cylinder. Heater no. 1 has priority. 10 consumer unit with 16a mcb immersion heater max. Load 3kw altern...

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    Rather than using the immersion heater to boost hot water, an external heat source e.G. A boiler can be used by making use of the multi-function relay wired to the boiler hot water controls. I t may be desirable to use a de-stratification pump to mix the cooler water at the bottom of the cylinder wi...

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    The multi-function relay can be used to switch any load on for a set duration, once an export threshold has been reached. The maximum relay current should not be exceeded (an additional contactor may be used for larger loads). If a fault signal for a bms system is required, the multi-function relay ...

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    3.5 using the immersun with a dual-rate electrical supply there are 2 common ways that a dual-rate electrical supply can be configured... 1. A single dual-rate meter feeding the whole house this is the most common configuration. • the immersun should be wired as normal. See wiring diagrams in sectio...

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    4. Installer settings once the unit is mounted and wired, the installer will need to set parameters as required for the particular installation. Before applying power to the unit the dip switches will need to be set. 4.1 dip switch settings the default position of the dip switches, is all four set t...

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    4.2 installation setup at first switch on, the immersun will run through the installation setup process, follow the instructions on the display. Step 1 installation setup – press > press ► to start the installation setup process as instructed. Otherwise press ◄ to cancel. Step 2 select clamp wired> ...

  • Page 16: Installer Menu Options

    4.3 installer menu installer menu options (press and hold ▼ and ▲ for 5 seconds for installer menu) description menu screen sub menus installer menu installer menu press > press and hold ▼ and ▲ for 5 seconds for installer menu, you will then see this screen, press ► to continue to installer menu. V...

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    Relay function >threshold threshold (threshld) relay operates when an export threshold is reached, relay remains activated for set period of time, even if export drops. Export threshold level and relay on duration can be set as shown below: threshold set export: 500w threshold set duration: 1h30m re...

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    5. User operation 5.1 controls and display button operation alt. Operation description ◄ back screen change exit menu or change screen when not in menus ▼ down menu go down through list or decrease value enter main menu ▲ up menu go up through list or increase value enter main menu ► set boost set v...

  • Page 19: Normal Operation

    5.3 normal operation display the table below summarises the operation of the immersun. There are four main modes of operation: heating water; water hot; waiting and hot water boost. The mode is shown on the lcd display, the led allows the mode to be determined from a distance. The display changes ev...

  • Page 20: Main Menu Options

    5.4 main menu main menu options (press ▼ or ▲ for main menu) description menu screen sub menus view savings the immersun measures and records energy applied to immersion heater. As only the renewable energy is counted this is effectively saved energy. Main menu view savings savings today: 12.563kwh ...

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    Timed boost main menu timed boost timed boost (a) 06:30 – 0h 30m timed boost a the water heating can be boosted to ensure hot water by a given time. When heating water in boost mode, the immersion heater will be fully on regardless of available free power. Set the on time and duration for timed hot ...

  • Page 22: ●○

    5.6 error messages if a fault condition occurs, an error message will be displayed and the led will flash red. The error will be logged in the fault log. Normal operation will continue once the immersun is reset. Error messages ●○ unit temperature too hot the internal temperature of the immersun is ...

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    6. Troubleshooting use the table below to help remedy the problem. Any actions requiring opening the immersun and/or testing voltages should only be carried out by a competent person. Contact your installer if in doubt. Symptom possible cause action unit dead, no display mcb tripped check mcb is on ...

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    7. Legionella and general advice 7.1 legionella the legionella bacteria is present in all source water. The concentration, however is normally too low to be a risk to health. The growth of the bacteria and hence the concentration is dependent on stagnation time, temperature and nutrient availability...

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    8. Warranty subject to the provisions described below, this product is protected for three (3) years against defects in material and workmanship. Should this product fail to perform as described within the warranted period, it will be repaired or replaced with the same or functionally equivalent pro...

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    9. Conformance ec declaration of conformity in accordance with en iso 17050-1:2004 we 4eco ltd of 3 church view business centre binbrook, lincolnshire, ln8 6by, england in accordance with the following directives: 2006/95/ec the low voltage directive 2004/108/ec the electromagnetic compatibility dir...

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    10. Commissioning sheet model serial number installation company installer name date of installation legionella advice given? See section 7 (tick when done) signed by installer 27.

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    4eco ltd, 3 church view business centre, binbrook, lincolnshire, ln8 6by, england +44 (0)1472 398838.