Xantrex Technology PV100S-480 PV Planning, Ventilation and Serviceability Requirements

Page 37

PV Planning

Large gauge wire must conform to the minimum bend radius specified in the

NEC, Article 373-6B, Ninth Edition.

Take care to keep the wire bundles away from any sharp edges which may damage wire insulation over time.

All conductors should be made of copper and rated for 90 °C (minimum).

If the installation of the PV100S is to be outdoors, all interconnect conduit and fittings must be NEMA 4 rated as required by the NEC.

PV Planning

To determine the number of photovoltaic panels that are required for the PV power plant, please use the PV planning tool from the Xantrex website:

http://www.xantrex.com/support/pvsizing/disclaimer.asp

Ventilation and Serviceability Requirements

 

The following environmental conditions must be established and maintained to

 

ensure the safe and efficient operation and servicing of the PV100S. Adequate

 

space must be provided around the unit for ventilation and access during

 

servicing. If locating the unit indoors, ambient air temperature cannot exceed the

 

maximum temperature for which the unit is rated.

Ventilation

Maintain a minimum clearance of 12 inches on both sides and 6 inches behind the

 

Main Inverter Enclosure and the AC Interface Enclosure for proper cooling fan

 

operation.

Maintenance and

Maintain a minimum clearance of 36 inches in front of the main inverter access

Serviceability

door, the Transformer Enclosure access panel, and the AC interface access door

 

for maintenance and serviceability.

 

See Figure 2-1 on page 2–6 and Figure 2-2 on page 2–7 for illustrations of these

 

clearance requirements.

Indoor Temperature

If the PV100S is to be installed indoors and external air is used for ventilation, the

Control

required cubic feet per minute (CFM) rate must be no less than 1000 CFM. This

 

assumes the temperature inside the building is allowed to rise only 10 °C 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).

 

If air conditioning is planned for an indoor installation, the heat load of the

 

PV100S is 1800 BTU/Hour at full load.

152315 Rev C

2–3

Image 37
Contents PV100S 100 kW Grid-Tied Photovoltaic Inverter Page PV100S 100 kW Grid-Tied Photovoltaic Inverter Date and Revision Scope PurposeAudience OrganizationFollowing conventions are used in this guide Conventions UsedRelated Information Abbreviations and AcronymsPage Important Safety Instructions Personal Safety General Safety PrecautionsSafety Equipment Wiring RequirementsSafety Lockout and Tag Operational Safety ProceduresInterconnection Standards Compliance De-Energize/Isolation ProcedureTo isolate the PV100S Xii Contents Schematics InstallationVerification Tables Xvi Figures Figures Introduction Description of the PV100S 1Dimensions Not to scale Electrical Specifications System SpecificationsSystem Ground Requirements 3Environmental Specifications Environmental SpecificationsOperator Interface Controls Main Enclosure Door Interlock Switch3On/Off Switch On/Off SwitchAC and DC Disconnect Switches Communication FeaturesData Logging System Status and Fault ReportingUniversal Front Panel Control Unit Ufcu Communication Methods6PC Connections in the Communications Enclosure PC Connection MethodsPots Access Ethernet LAN Access Planning Overview of PV100S Installation PV Planning Ventilation and Serviceability RequirementsSystem Neutral Requirements Ground RequirementsCommunication Requirements Utility Side Isolation Transformer RequirementsModel PV100S-480 Electrical Diagrams and SchematicsModel PV100S-208 1PV100S Layout Option a Layout Options2PV100S Layout Option B 3Conduit Entry Figure Reference Conduit Penetration15 cm 12 30 cm 10.5 27 cm To calculate the proper conduit size Conductor and Conduit SizingDetermine the required cable ampacity Size the conduit Size the cable29 73.7 cm 16 ¼ 40.6 cm Anchoring the PV100S10AC Interface/Transformer Anchor Bolt Pattern Not to Scale Installation Unloading Equipment RequiredUnpacking the PV100S Moving the PV100SRemoving the Pallet and Moving the PV100S To move the PV100S using a forkliftTo mount and anchor the PV100S Mounting and Anchoring the UnitsTo lock or unlock the front door on the main inverter Opening or Closing Access DoorsTo Close Access Door To Open Access Door7Transformer Access Panels To install the conduits Conduit InstallationWiring General Conductor Termination Overcurrent ProtectionGrounding Wire Gauge and Torque RequirementsUtility Side Isolation Transformer Requirements System Neutral RequirementsAC Connections Wiring Specific13Tie-wraps on the AC Sense Harness 15AC Terminal Connections in the Main Inverter Enclosure To connect the utility service to AC Interface Enclosure 17Connecting the AC Sense Harness18AC Terminal Connections from the Utility 19PV Array Cable Routing and Terminations PV Array ConnectionsPC Communications Establishing a Pots Connection To connect a personal computer using the Pots ConnectionTo connect a personal computer using the GSM Wireless modem Establishing Wireless ConnectionDirect Connection If connecting the PC directly to the inverter22Direct Connect Installation Verification Verification Procedure Summary Visual Inspection of Electrical Connections Visual Inspection of Mechanical ConnectionsCorrective Action Visual Inspection, Isolation Transformer Wye/WyePerform after initial inspection if required Schematics This page intentionally left blank Figure A-1Electrical Diagram sample Schematics Appendix a Schematics Appendix a Schematics Appendix a This page was intentionally left blank Index IX-2 Rev C Page Xantrex Technology Inc