Phase Technology Phase Perfect PT007, Operation & Installation Manual

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V2.1
For 480V PTE models (PTE4XX) , disconnect wires from JL2. You may need to remove the
baffle covering the heatsink to access JL2. Next, use a multi-meter to measure between L1
and L2, then measure between L2 and JL3B. If either capacitance measured is below the
50% Capacitance value in Table 26 , contact Phase Technologies for replacement. Be
sure to reconnect wires to JL2 before powering unit on again.
Figure 32
– Measuring PTE4XX Filter Capacitors
Fuses
There are several replaceable fuses in the converter. Each fuse is assigned a designator,
indicated by its label. Contact the Phase Technologies Service Department for replacement
fuses.
Table 27
– Fuse Information
Fuse Designator Locations 250 V Fuse Rating
F1 Inverter Board 3 A Fast Blow
F3 Inverter Board 3 A Fast Blow
Disconnect wires from JL2
before measuring.
JL1
JL2
JL3B