Important Safety Instructions
2 900-0054-01-00 Rev A
Definit ions
Table 1 Ter ms and Acronyms
Acronym Definition
Button Board Flat board containing the push-buttons and LCD.
Control Board Narrow circuit board containing the unit’s programming.
FET
F
ield
E
ffect
T
ransist or. The FETs used for power swit ching in t he FLEXmax are
classified as MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors).
LCD
L
iquid-
C
rystal
D
isplay; refers t o t he FLEXmax dat a readout.
Power Board Large circuit board containing the unit’s power-switching circuitry.
PV
P
hoto
v
oltaic; refers to the photovoltaic panels or modules used with the FLEXmax.
Per sonal Saf et y
WARNING: Personal Injury
Use standard safet y equipment such as safet y glasses, ear prot ection, steel-toed
safet y boot s, safet y hard hats, et c. as prescribed by t he Occupational Safety and
Healt h Association (or ot her local codes) when working on this equipment .
Use standard safet y practices when working wit h electrical equipment (e.g., remove
all jewelry, use insulated tools, wear cotton clothing, etc.)
Never work alone when inst alling or servicing this equipment . Have someone
nearby that can come to your aid if necessary.
PV Saf et y
WARNING: Shock Hazar d
Phot ovolt aic (PV) arrays can be energized wit h minimal ambient light available.
Therefore to ensure a safe disconnect from the syst em, be sure t o inst all a PV disconnect,
breaker, or accessible fuse box (depending on local code requirement s).
CAUTION: Eq u i p men t Dam ag e
PV Arrays must be wired with correct polarity (positive-to-positive, negative-to-
negative). Connecting the cables incorrectly can damage or dest roy the equipment .
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