Table of Contents
1 READ THIS FIRST ........................................................................................................................ 4
2 SAFETY SYMBOLS....................................................................................................................... 5
3 SAFETY INSTRUCTIONSAND EC DIRECTIVES ............................................................................... 9
3.1 EC DIRECTIVES ..................................................................................................................... 15
4 THE INVOLAR MICRO-INVERTER SYSTEM INSTRUCTION .......................................................... 24
4.1 THE INVOLAR MICRO-INVERTER SYSTEM .................................................................................. 24
4.2 THE INVOLAR MAC250 MICRO-INVERTER ............................................................................... 25
4.3 FEATURES ........................................................................................................................... 25
5 INVOLAR MICRO-INVERTER INSTALLATION ............................................................................. 26
5.1 INVOLAR MAC250MICRO-INVERTER OPERATIONAL ENVIRONMENT ............................................... 28
5.2 INVOLAR MAC250 MICRO-INVERTER OPERATIONAL CONDITION IN PV SYSTEM ................................ 28
5.3 INSTALLATION STEPS ............................................................................................................. 28
6. FUNCTION INSTRUCTIONS ....................................................................................................... 35
6.1 WORKING MODE ................................................................................................................. 35
6.2 GRID-CONNECTION ............................................................................................................... 36
6.3 GRID DISCONNECT ................................................................................................................ 36
START-UP– CHECKS .......................................................................................................................... 37
7 DISCONNECTING A MICROINVERTER FROM THE PV MODULE ................................................. 38
8 MONITORING AND TROUBLESHOOTING AND MAINTENANCE ................................................. 39
SAFETY CHECKS ................................................................................................................................. 39
MAINTAIN PERIODICALLY .................................................................................................................... 39
8.1 OVERVIEW .......................................................................................................................... 40
8.2 MAC250 MICRO-INVERTER STATUS LED INDICATIONS AND ERROR REPORTING ............................. 41
9 INTERNET WEB ................................................................................................................... 43
9.1 USER REGISTRATION.............................................................................................................. 43
9.2 USER LOGIN ........................................................................................................................ 43
10 INVOLAR MAC250 MICRO-INVERTER TECHNICAL DATA ........................................................... 44
10.1 TECHNICAL SPECIFICATIONS ..................................................................................................... 44
11 APPENDIX ................................................................................................................................ 46
11.1 LIMITED WARRANTY.............................................................................................................. 46
11.2 INVOLAR MAC250 MICRO-INVERTER SYSTEM SAMPLE WIRING DIAGRAM ...................................... 47
11.3 EC DECLARATION OF CONFORMITY ........................................................................................... 48
