Installation manual

Environmental Requirements
152936 2–3
This manual is for use by qualified personnel only.
Environmental Requirements
The following environmental conditions must be established and maintained to
ensure the safe and efficient operation and servicing of the Xantrex GT250 E.
• Maintain a minimum clearance of 60 cm plus local safety requirements in
front of the enclosure for air intake, maintenance and serviceability.
• External cabling enters the Xantrex GT250 E from the bottom. Either the
Xantrex GT250 E needs to be placed over a foundation hole which holds the
cables, or placed on top of a hollow platform which allows access to the
bottom of the Xantrex GT250 E.
• If external air is used for ventilation, the required liter per minute (L/M) rate
must be no less than 87,000 L/M. This assumes the temperature inside the
building is allowed to rise 10 °C (18 °F) above the outside temperature.
Therefore, the maximum allowable outside ambient temperature is 50 °C
(50 °C minus 10 °C equals 40 °C Maximum Ambient Temperature) or 122 °F
(122 °F minus 18 °F equals 104 °F Maximum Ambient Temperature).
If air conditioning is planned the heat load of the Xantrex GT250 E is 60,000
BTU/Hour at full load.
Ground Requirements
This product is intended to be installed as part of a permanently grounded
electrical system per National Electric Code ANSI/NFPA 70 and EU requirements
as well as all state and local code requirements (for example DIN/VDE). A copper
ground rod must be installed within 3 ft. (1 m) of the Xantrex GT250 E Enclosure.
This is the single point earth ground for the inverter system. The single point
ground for the system is to be made at the AC ground bus bar (PE) in the AC
Interface Enclosure.
Communication Requirements
The Xantrex GT250 E comes equipped with a MultiTech
®
56K modem to provide
remote access to the unit. A direct analog phone line to the local phone service is
required to use this feature.
The phone line used for Xantrex GT250 E communication cannot be routed
through a Private Branch Exchange (PBX) unless an analog PBX card is used.
Determine which communications options are required for the installation and
procure the appropriate equipment and phone access.