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my-PV AC ELWA-F Assembly And Operation Manual

Electric pv excess energy water heater for frequency-controlled ac coupled off-grid pv systems
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Electric PV Excess Energy Water Heater for
frequency-controlled AC coupled off-grid PV systems
Content
1. Intended use ..................................................................................................................................... 2
2. Scope of delivery............................................................................................................................... 2
3.
Safety instructions ................................................................................................................... 2
4. Exemption of Warranty and Liability .............................................................................................. 3
5. Mounting and Installation Instructions .......................................................................................... 3
6.
Electrical Connection............................................................................................................... 4
7.
Operation with frequency-shift inverters ............................................................................. 4
8. Controls and Indicators .................................................................................................................... 4
9. Operating status indicator ............................................................................................................... 5
10. Factory preset ................................................................................................................................... 5
11. Fuse setting with rotary knob (13 A / 16 A) .................................................................................... 5
12. Adjusting the frequency behaviour ................................................................................................ 5
13. Adjusting the maximum power ....................................................................................................... 7
14.
Using multiple AC ELWA-F in a system .................................................................................. 7
15. Red LED error displays ..................................................................................................................... 8
16. Maintenance ..................................................................................................................................... 8
17. Troubleshooting ............................................................................................................................... 8
18. Disposal ............................................................................................................................................. 8
19. EU Declaration of Conformity ......................................................................................................... 9
20. Technical data ................................................................................................................................... 9
®
AC ELWA
-F Assembly- and Operation Manual, 170224
AC ELWA
®
-F
1

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Summary of Contents for my-PV AC ELWA-F

  • Page 1: Table Of Contents

    11. Fuse setting with rotary knob (13 A / 16 A) ..................5 12. Adjusting the frequency behaviour ....................5 13. Adjusting the maximum power ....................... 7 Using multiple AC ELWA-F in a system .................. 7 15. Red LED error displays ........................8 16. Maintenance ............................. 8 17.

  • Page 2: Assembly- And Operation Manual

    Intended use The electric PV excess-energy hot water device AC ELWA-F is intended for stationary installation in hot water storage tanks or buffer storage tanks. The device operates in combination with frequency-shift inverters and uses excess energy for hot water production as soon as the battery gets fully charged.

  • Page 3: Exemption Of Warranty And Liability

    The installation of the device must only be carried out by authorized technical staff. The storage tank must be drained properly. AC ELWA-F is intended for horizontal mounting in hot water or storage tanks with 1 ½ inch standard female threads.

  • Page 4: Electrical Connection

    Electrical Connection AC ELWA-F has to be connected to an earthed socket that is protected by a 13 A or 16 A circuit breaker. Earthing must be provided! Use only in systems with protective earthing and leakage current detection! Take care of other appliances connected to the same circuit breaker, this may trigger it!

  • Page 5: Operating Status Indicator

    11. Fuse setting with rotary knob (13 A / 16 A) At factory preset, AC ELWA-F can take up to 3,000 W from the grid (16 A fuse). For 13 A fused sockets, the maximum power consumption can be reduced to 2,500 W.
  • Page 6 Choose language and correct COM port under Settings Menu AC ELWA Software connects automatically with AC ELWA-F. Current data of the device are displayed, including AC frequency: Choose „Frequency Control“ in Stettings Menu. Choose desired setting, press OK. Values are stored in non-volatile memory. Readjustment is possible anytime.

  • Page 7: 13. Adjusting The Maximum Power

    The frequency curve is linear from 0 to this setting between the chosen low and high frequency. Using multiple AC ELWA-F in a system You can use multiple AC ELWA-F in a system, either on the same phase or on different phases. The battery inverter´s power must be sufficient.

  • Page 8: 15. Red Led Error Displays

    15. Red LED error displays No LED: Check supply voltage. Check circuit breaker. Check for parallel loads on the same circuit that may have overloaded the circuit breaker. 1x flash  Over temperature fuse (98°C) blown. Unit must be serviced by authorized staff.

  • Page 9: 19. Eu Declaration Of Conformity

    19. EU Declaration of Conformity my-PV GmbH, Teichstrasse 43, A-4523 Neuzeug, hereby declares that the device AC ELWA-F complies with the following standards and regulations: EN 55014-1, EN 55014-2, EN 60335-2-21, EN 60730-2-9, EN 61000-3-2, EN 61000-3-3, EN 62233 The above mentioned company holds documentation to proof the compliance with safety requirements.

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