Important Safety Instructions
2
900-0054-01-00 Rev
A
Definitions
Table 1 Terms 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
Field Effect Transistor. The FETs used for power switching in the FLEXmax are
classified as MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors).
LCD
Liquid-Crystal Display; refers to the FLEXmax data readout.
Power Board
Large circuit board containing the unit’s power-switching circuitry.
PV
Photovoltaic; refers to the photovoltaic panels or modules used with the FLEXmax.
Personal Safety
WARNING: Personal Injury
Use standard safety equipment such as safety glasses, ear protection, steel-toed
safety boots, safety hard hats, etc. as prescribed by the Occupational Safety and
Health Association (or other local codes) when working on this equipment.
Use standard safety practices when working with electrical equipment (e.g., remove
all jewelry, use insulated tools, wear cotton clothing, etc.)
Never work alone when installing or servicing this equipment. Have someone
nearby that can come to your aid if necessary.
PV Safety
WARNING: Shock Hazard
Photovoltaic (PV) arrays can be energized with minimal ambient light available.
Therefore to ensure a safe disconnect from the system, be sure to install a PV disconnect,
breaker, or accessible fuse box (depending on local code requirements).
CAUTION: Equipment Damage
PV Arrays must be wired with correct polarity (positive-to-positive, negative-to-
negative). Connecting the cables incorrectly can damage or destroy the equipment.
