Table of Contents
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Content
Intended Use ........................................................................................................................................... 2
Scope of Supply ....................................................................................................................................... 2
Safety Instructions ......................................................................................................................... 2
Exemption of Warranty and Liability ..................................................................................................... 3
Assembly and Installation Instructions ................................................................................................. 3
Electrical Connection ..................................................................................................................... 4
Electrical Connection Stratification Charge ................................................................................. 4
Controls and Indicators .......................................................................................................................... 5
Operating Status Indicator ..................................................................................................................... 5
Start-up .................................................................................................................................................... 5
Normal operation without boost backup (AC plug not connected) ........................................... 5
Normal operation with boost backup (AC plug connected) ........................................................ 5
Adjusting the boost backup target temperature (factory preset to 50 °C) ................................. 6
Stratification Charge with two ELWAs ............................................................................................ 6
Error Displays .......................................................................................................................................... 6
Maintenance ............................................................................................................................................ 7
Troubleshooting ...................................................................................................................................... 7
Disposal .................................................................................................................................................... 7
Declaration of Conformity ...................................................................................................................... 7
Technical Data ......................................................................................................................................... 8
®
ELWA
Assembly- and Operation Manual, 170504
ELWA
Photovoltaic Water Heater
Assembly- and Operation Manual
®
1
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Summary of Contents for MYPV ELWA
- Page 1 ® ELWA Photovoltaic Water Heater Assembly- and Operation Manual Content Intended Use ............................2 Scope of Supply ............................2 Safety Instructions ......................... 2 Exemption of Warranty and Liability ..................... 3 Assembly and Installation Instructions ....................3 Electrical Connection ........................4 Electrical Connection Stratification Charge .................
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Page 2: Intended Use
Intended Use The electric hot water device ELWA is designed to be used with photovoltaic arrays up to 2.5 kWp nominal power. ELWA should be mounted on conventional hot water tanks or storage tanks with a minimum capacity of about 150 litres. -
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. ELWA is intended for horizontal mounting in hot water or storage tanks with 1 ½ inch standard female threads. -
Page 4: Electrical Connection
Y-Connector Connect MC4 DC wires with correct polarity. Wrong polarity does not cause any damage, but the device will not work. Connect AC plug of the upper ELWA if boost backup heating is desired. ® ELWA Assembly- and Operation Manual, 170504... -
Page 5: Controls And Indicators
Start-up Normal operation without boost backup (AC plug not connected) Remark: It takes several minutes to start-up ELWA after connecting the DC. The green LED flashes (Standby). Adjust desired solar target temperature Switch on main switch (Device starts operating several minutes after the DC has been... -
Page 6: Adjusting The Boost Backup Target Temperature (Factory Preset To 50 °C)
Switch on main switch Device returns to normal operation Stratification Charge with two ELWAs ELWA is factory preset to operate as a single device or as an upper device in stratification charge mode. The lower ELWA has to be set as follows: Switch off main switch Adjust rotary knop to „spanner“... -
Page 7: Maintenance
Declaration of Conformity my PV GmbH, Teichstraße 43, 4523 Neuzeug (Austria) hereby declares that the device ELWA complies with the following standards and regulations: EN 60335-1, EN 60335-2-21, EN 60730-1, EN 60730-2-9, EN 61000-3-2, EN 61000-3-3, EN 61000-4-11, EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-5, EN 61000-4-6,... -
Page 8: Technical Data
130 x 180 x 600 mm incl. (WxHxD) heating rod Heating rod length 45 cm Heating rod thread 1 ½ inch Weight 2 kg with power cord, without carton Subject to change. my-PV GmbH Teichstrasse 43, 4523 Neuzeug www.my-pv.com ® ELWA Assembly- and Operation Manual, 170504...
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