Installation

Inverter failure due to improper installation will void the inverter warranty. Consider the following when determining where to install the inverter.

Indoor/

• The GT Inverter uses a Type 3R-rated enclosure (vertical mount only)

Outdoor

that can be mounted indoors or outdoors. (Type 3R enclosures are

 

intended for outdoor use primarily to provide a degree of protection

 

against falling rain; and to be undamaged by the formation of ice on the

 

enclosure.)

 

• While the 3R-rated enclosure protects the GT Inverter from moisture,

 

outdoor installations should be located away from lawn sprinklers and

 

other sources of spray.

 

• A sun shade is recommended for outdoor installations. In bright sun

 

conditions, when the GT Inverter is at or near full output with an

 

ambient temperature above 40 °C (104 °F), shading the unit will help

 

increase inverter performance. A sun shade can also protect the inverter

 

from dust, debris, and birds. The sun shade should be made from an

 

opaque material that provides shade for the heat sink. It should be large

 

enough and positioned so that it shades the heat sink for all sun angles.

 

Ensure that the shade is installed according to the minimum clearances

 

specified on page 2–7.

Orientation • The GT Inverter must be mounted vertically on a wall or pole.

•Do not mount the GT Inverter horizontally.

•If mounting the inverter indoors on a south-facing wall, ensure the wall is insulated to reduce the amount of heat absorbed by the inverter. Unless walls are properly insulated, avoid mounting the inverter indoors on any wall that is directly exposed to the sun.

Temperature • Ensure that the GT Inverter is mounted in a location where the ambient

temperature range is -25 to +65 °C (-13 to +149 °F).

•Above 40 °C (104 °F), the GT Inverter may derate power output. See“Output Power vs. Ambient Temperature” on page A–3 and “Environmental Specifications” on page A–4.

•At extreme hot or cold temperatures, the front panel LCD may not function normally.

Ground

• Outdoors, the GT Inverter requires at least 100 cm (39 inches) of

Clearance

clearance between the bottom of the unit and the ground.

Distance

• To minimize resistance and resulting power loss, ensure that wire

 

lengths between the PV array and the GT Inverter and between the

 

inverter and the Main Utility Service Panel are kept to a minimum.

 

• Maximum distances will depend on wire gauges used and PV array

 

output voltages.

Debris free

• Excessive debris (such as dust, leaves, and cobwebs) can accumulate

 

on the unit, interfering with wiring connections and ventilation. Do not

 

install in a location where debris can accumulate (under a tree, for

 

example).

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