Solar collector pm

solar pm

• Push yellow button to turn off unit

• Turn off main breaker power and LOTO (upload picture to verify)

• Turn off solar breakers and LOTO (upload picture to verify)

• Open unit and observe for any obvious issues

• Use leaf blower to blow dust out of radiator

• Vacuum all dust from inside and and outside of unit (do not use blower)

• Blow out cooling fins and straighten if needed

• Replace filters and wash old ones and let air dry to pack away (after unit is PM'd)

• Close all cabinets and replace panels

Main LOTO

Panel LOTO

panel string check

• While unit is down for pm check for anomalies in panel string voltage

• Open each junction box and verify ground and continuity on all breakers

• Disconnect all breakers

• Check voltage at each line and note any bad readings for repairs

• reconnect all breakers and close box and verify latch and seal

PM finalizing

• Remove LOTO on panel breaker and energize

• Remove LOTO on main breaker and energize

• Twist yellow start button to verify unit starts (upload picture)

Restart verified