MYPV AC ELWA Series User Manual

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.

MYPV AC ELWA Series Specifications

General

Brand	MYPV
Model	AC ELWA Series
Category	Water System
Language	English

Summary

Installation and Operating Instructions

Intended Use

Describes the intended application and control of the AC ELWA device for PV excess-energy hot water systems.

Delivery

Lists the components included in the AC ELWA product package.

Safety Instructions

Provides critical safety guidelines and warnings for installation and operation to prevent hazards.

Liability and Warranty Exclusion

Outlines conditions under which liability and warranty coverage are excluded for the product.

Installation of AC ELWA

Electrical Connection

Electrical Connection Scheme

Presents a wiring diagram illustrating the electrical connections for the AC ELWA system.

Electrical Connection AC ELWA

Explains the specific connection requirements for the AC ELWA to the power grid.

Electrical Connection PLA

Outlines the procedure for connecting the PLA Meter/Controller to the power supply.

Control Line Between AC ELWA and PLA

Describes how to establish the control communication link between the AC ELWA and PLA units.

Electrical Connection of Several AC ELWAs in a System

Details how to connect multiple AC ELWA units within a single system for distributed heating.

User Interface and Indicators

Controls and Displays AC ELWA

Explains the physical controls and visual indicators on the AC ELWA unit.

Operating, Display and Connecting Elements PLA

Describes the user interface elements and connections on the PLA Meter/Controller.

Indicators

Lists and explains the meaning of various status indicators (LEDs) on the devices.

Symbols

Defines the meaning of symbols used in the manual, particularly for LED status.

Configuration and Commissioning

Factory Settings AC ELWA

Details the default factory configurations for the AC ELWA unit.

Factory Settings PLA

Outlines the default factory configurations for the PLA Meter/Controller.

Commissioning AC-ELWA - PLA

Guides the user through the initial setup and activation process for the AC ELWA and PLA system.

Set AC ELWA Circuit Protection

Explains how to configure the circuit protection settings (13A or 16A) for the AC ELWA.

Set AC ELWA Device Number

Describes how to assign a unique device number to the AC ELWA when used in a multi-unit system.

Set AC ELWA Reheating

Details the configuration process for the AC ELWA's reheating function for automatic hot water supply.

PLA Settings and Modes

PLA Settings

Describes the main menu structure and operational modes available on the PLA Meter/Controller.

Reheating Function

Explains the function and operation of the reheating feature for ensuring hot water availability.

Time of Day Setting

Details the importance and accuracy of setting the correct time for reheating operations.

Stratification and Synchronous Charge

Explains PLA control modes for managing AC ELWAs with different priorities or synchronized power.

Troubleshooting and Maintenance

AC ELWA Fault Display

Lists and explains various fault codes and LED indicators for the AC ELWA.

PLA Fault Displays

Describes the fault indicators for the PLA Meter/Controller and connected AC ELWAs.

Maintenance

Provides recommendations for routine maintenance to prevent issues like calcification and cable damage.

Troubleshooting

Offers guidance on resolving common operational issues and contacting service for malfunctions.

Disposal

Instructions on how to properly dispose of the product and its packaging at the end of its service life.

Technical Specifications

AC ELWA Specifications

Lists detailed technical data for the AC ELWA unit, including voltage, power, dimensions, and protection.

PLA Specifications

Provides detailed technical specifications for the PLA Meter/Controller, including voltage, consumption, and dimensions.

Control Wire Specifications

Details the specifications for the control wire used to connect the PLA to the AC ELWA.