<xs:element name="CoolingSystemZones" type="xs:string" minOccurs="0" maxOccurs="1">
    <xs:annotation>
        <xs:documentation>
						The number of individually controlled zones
						for the principal cooling system. Given that this
						element is not a generally searched element, the
						group decided in Sunnyvale to use facets to
						constrain the string values to integer (exact),
						integer+ (or greater) or integer-integer (range)
					</xs:documentation>
        <xs:appinfo>
            <retsid />
            <example />
        </xs:appinfo>
    </xs:annotation>
</xs:element>