Maintenance 101
Maintenance
Chapter contents
• Requirements for maintenance personnel (p. 101)
• Maintenance overview (p. 102)
• Maintenance intervals (p. 103)
• External fan replacement (p. 104)
• Internal fan replacement (p. 106)
• String fuse replacement (-SX model) (p. 107)
• Surge protection device replacement (-SX model) (p. 108)
• Control unit battery replacement (p. 109)
• Spare part kits (p. 109)
WARNING! Do not do electrical work on the unit unless you are a qualified
electrician. Obey the instructions in Chapter Safety on page 11. Failure to obey
the safety instructions can cause injury or death, electromagnetic interference and
equipment malfunction.
Requirements for maintenance personnel
The maintenance person is typically the building or photovoltaic (PV) system
caretaker. During commissioning, the commissioning electrician shows the
maintenance person the procedures and tells them how to order spare parts.
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