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AC ELWA
®
PV Excess-Energy Hot Water System
PLA
3-phase Meter/Controller
Installation and Operating Instructions
Intended Use
The electrical device PV excess-energy hot water system AC ELWA (referred to as AC ELWA) is intended for
stationary installation in hot water storage or buffer tank storage. The device is controlled by external control
signals and adjusts its heating power from zero to 3000 W accordingly.
You can use the AC ELWA also with Universal Interface!
The PLA Meter/Controller is incorporated in the power distribution immediately after utility meter fuses. It is
suitable for single-phase and three-phase systems. The neutral conductor shall be connected in any case.
Any other use than described above may damage the device, moreover, this involves dangers such as short
circuit, fire, electric shock, etc. The safety instructions and the information on handling in this manual and in
the application instructions shall be followed!
The product complies with the applicable National and European requirements. Company and product name
are trademarks of my PV GmbH. All rights reserved.
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Summary of Contents for MYPV AC ELWA Series
- Page 1 AC ELWA ® PV Excess-Energy Hot Water System 3-phase Meter/Controller Installation and Operating Instructions Intended Use The electrical device PV excess-energy hot water system AC ELWA (referred to as AC ELWA) is intended for stationary installation in hot water storage or buffer tank storage. The device is controlled by external control signals and adjusts its heating power from zero to 3000 W accordingly.
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Page 2: Liability And Warranty Exclusion
Delivery • Electric photovoltaic excess-energy hot water system AC ELWA • Connection plug for control cable connection between AC ELWA and PLA Meter/Controller • IP21 cover • Operating instructions safety instructions The installation must be carried out exclusively by the authorized expert. When installing and connecting the relevant standards must be observed. - Page 3 Installation of AC ELWA The installation must be carried out exclusively by the authorized personnel. The hot water storage tank must be drained properly before installing the AC ELWA. AC ELWA is designed for horizontal installation in hot water tank with 1 ½ inch thread. The unheated zone of the built-in heating element is 90 mm from sealing surface.
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Page 4: Electrical Connection Scheme
Electrical connection scheme Electrical connection AC ELWA To ensure proper operation of the control line to PLA (data modulation), the AC ELWA has to be connected with the correct polarity at the socket. The power plug is marked with "N". The "N" side of the plug must be connected to the "N" pole of the socket (check with voltage meter). - Page 5 Control line between AC ELWA and PLA The control cable between AC ELWA and PLA may be installed in AC wiring conduits. There is no separate installation necessary (local regulations must be observed!) The strain relief of the connector must be mounted. Exposed areas of the control line need double insulation! The entry of the control line in the wall socket must comply with local regulations (strain relief).
- Page 6 Controls and displays AC ELWA temperature adjustment knob 1-6 ... AC ELWA number in the operation of multiple devices on a PLA 13A/ 16A …circuit protection Green LED reaches desired temperature (flashes in standby) LED yellow: mains operation LED red: no control signal or disturbance Operating, display and connecting elements PLA Load side: L1out L2out L3out data connection to PLA Green LED reaches desired temperature (flashes in...
- Page 7 Factory settings AC ELWA AC ELWA number 1 16A fuse for the power outlet of the AC ELWA automatic hot water ensuring disabled Factory settings PLA Reheating off Stratification charge with more than one AC ELWA Commissioning AC-ELWA - PLA Activate the main switch of the house after you install the PLAs again.
- Page 8 AC ELWA LED green LED yellow LED red number: Flash Flash Flash Flash Flash Flash Flash Flash Flash Value is saved automatically if the control knob is left unchanged for 5 seconds all three LEDs flash rapidly for 2 seconds, setting is saved. Set the temperature control knob to the desired temperature value.
- Page 9 PLA Settings Normal mode Normal mode 1 s keystroke 5 s keystroke Reheat off Reheat on Stratification Synchron 1x: Setup mode 1x: Setup mode 6x: Charge 6x: Charge 0_:__ time 1x: 1 _:__ time 2x: 2 _:__ time short keystroke 2x: Setup time 2x: Setup time 2x: Setup time...
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Page 10: Maintenance
AC ELWA fault display No display: Check power supply. Check the circuit breaker check if parallel consumers are connected next to the AC ELWA in the same circuit. Red LED: 1x flash Over temperature protection (98 ° C) triggered. Device must be checked by Service. 2x flashes Water temperature is above 90 °... -
Page 11: Eu Declaration Of Conformity
EU Declaration of Conformity Company my-PV GmbH, Stutterheimstrasse 16-18 / 2, 1150 Wien hereby declares that the products AC ELWA AC ELWA-I Universal Interface IR Interface for Loxone Complies with the following directives and standards: EN 60335-2-21 (just AC ELWA and AC ELWA-I) EN 61000-6-2 EN 61000-6-3 EN 61000-3-2... -
Page 12: Technical Specifications
Technical specifications AC ELWA Voltage 200 - 250 V Max. heatingpower 3000 W at 230 VAC Mains connection Single phase, grounded plug, 230 V, 50 – 60 Hz safeguarding 13 A or 16 A Connecting wire 2.8 m Standby- <1 W Operating Pressure max.
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