MYPV ClearSky Plus, User Manual, Page: 78 / 106

Initial Energization 78
Prior to energizing all three (3) phases, it is advised to energize phase-C only.
Energizing phase-C allows for the following two (2) commissioning steps to be
performed:
Overview of Commissioning Steps:
1. Phase-C powers the control power PT, energizing the control cabinet
2. Phase-C identification from Interconnection, through the test-switches, to the Meter
& Protective Relay
For the following steps, the myPV ClearSky™ PLUS’s Control Panel door will need to
be opened and the dead front swung open to allow for AC power measures.
Energization Steps:
1. Instruct the MV contractor to energize phase-C, as it is labeled at the
interconnection
2. In the Control Cabinet, use a Multimeter (set to AC RMS) to verify the presence of
~120V AC voltage (±10%, 108 - 132V) at locations (A) 602A [FU3] and (B) [either
10A]
[PASS] If ~120V AC is present., phase-C has been verified and control power
commissioning may begin. Proceed to Control Power Commissioning.
[FAIL] If ~120V AC is not present, phase-C has not been verified, and corrective
actions are required. Please consult your MV contractor, or Solar-Ops for
additional support. Do Not Proceed.
3. If [PASS] where ~120V AC is present In both locations:
a. CLOSE the 3-pole fuse block (energizing PT references up to the control back
panel fuses)
b. CLOSE the 2-pole breaker (energizing the space heater circuit & the controls
back panel 001 fuse)
ClearSky Control Panel (Right) Setup
Phase-C Energization