Cabinet Mounting
Tools Required
The following tools are required to install the system:
Socket set, Phillips screwdriver, diagonal wire cutters, long nose pliers, electrical tape, digital Volt-Ohm meter, safety
glasses with side shields, small punch (knockout removal), hammer, electric drill, wood or masonry bits, level.
Mounting Hardware
Mounting hardware is not provided. Care should be taken when selecting mounting hardware to assure that it is the
proper type for the application and sized to safely support the system’s full weight when installed, assuring safe and
secure attachment of system to wall surface or building structures. For ease of installation, the factory recommends that
the head size of mounting screws or bolts be small enough to pass through the keyhole knockouts provided for mounting.
This will allow the unit to be hung on partially installed mounting hardware and facilitate easy cabinet removal if ever
necessary.
Knockout Locations
All models provide knockouts on the top and sides of the unit. Additional entry points, if required can be added using a
metal punch. Do not drill into the cabinet, as metal filings can cause short circuits and damage the equipment.
NOTE: Consider unit knockout locations prior to mounting unit. Allow room for easy routing of conduit to entry point.
Cabinet Mounting Instructions
1. Remove cover and any packing material inside unit housing that may have been used for shipping purposes.
2. Remove the appropriate knockouts, 7/8” diameter, on the top and/or sides of the unit housing to facilitate conduit
attachment. Also remove keyhole knockouts in the upper and lower corners on the back of the housing.
3. Secure housing to mounting surface through all keyhole knockouts provided using mounting hardware (not supplied)
sized appropriately to support the unit weight.
AC Connections
CAUTION:
• The Mesa inverter system units contain hazardous AC and DC voltages. Because of these voltages, a qualified
electrician must install the Mesa inverter system, AC line service, and batteries. The electrician must install the AC line
service according to local, state and NEC codes and must be familiar with batteries and battery installation.
• Before installing, maintaining, or servicing the unit, always remove or shut off all sources of AC power to the Mesa
inverter system. Turn the unit battery circuit breaker (CB-1) off to make sure the unit will not supply output voltage. Turn
the unit AC input breaker (CB-2) off (if provided). Turn the AC line input circuit breaker OFF at the service panel.
• Whenever AC and/or DC voltage is applied, there will be AC voltage inside the Mesa inverter system unit; the unit can
supply power from AC line or from its batteries. To avoid equipment damage or personal injury, always assume that
there may be voltage inside the Mesa inverter system.
• Remove rings, watches, and other jewelry before installing the AC wiring. Always wear protective clothing and eye
protection and use insulated tools when working near batteries. Whenever servicing an energized unit with the inside
panel open, electric shock is possible; follow all local safety codes. TEST BEFORE TOUCHING!
• To reduce the risk of fire or electric shock, install the Mesa inverter system and the batteries in a temperature-controlled
and humidity-controlled indoor area free of conductive contaminants. See the Installation Requirements section on
page 4 for operating environment specifications.
Mesa Series
Installation Instructions
10070244 REV 1 - 04/21 5 800-533-3948 www.barronltg.com
