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Attributes
Diagrams
Facets
Instances
Model
Properties
Source
Used by
Included schema WaterHeatingSystem.xsd
Namespace http://www.iepmodel.net
Properties
attribute form default unqualified
element form default unqualified
Element WaterHeatingSystemType / Name
Namespace No namespace
Annotations
This is simply a descriptive name, typically a common name used for the system.
Diagram
Diagram
Type xs:string
Properties
content simple
minOccurs 0
maxOccurs 1
Source
<xs:element name="Name" type="xs:string" minOccurs="0" maxOccurs="1">
  <xs:annotation>
    <xs:documentation>This is simply a descriptive name, typically a common name used for the system.</xs:documentation>
  </xs:annotation>
</xs:element>
Element WaterHeatingSystemType / Description
Namespace No namespace
Annotations
Place for user to include additional notes/description of the system.
Diagram
Diagram
Type xs:string
Properties
content simple
minOccurs 0
maxOccurs 1
Source
<xs:element name="Description" type="xs:string" minOccurs="0" maxOccurs="1">
  <xs:annotation>
    <xs:documentation>Place for user to include additional notes/description of the system.</xs:documentation>
  </xs:annotation>
</xs:element>
Element WaterHeatingSystemType / Fuel
Namespace No namespace
Diagram
Diagram
Type EnergyClassEnumType
Properties
content simple
minOccurs 0
Source
<xs:element minOccurs="0" name="Fuel" type="EnergyClassEnumType"/>
Element WaterHeatingSystemType / HeatingMethod
Namespace No namespace
Annotations
Describe here what method is used to heat the water.
Examples:
Electric Resistance
Fuel - Condensing
Fuel - Non-Condensing
Heat Pump – Air Source
Heat Pump – Water Source
Hybrid
Heat Exchanger
Solar

Note, that some of the examples above require additional objects to be defined. For example:

- If the heating type is Heat Exchanger, a reference to a distribution system that is the heat source is needed.

- If solar, then additional details regarding the solar heating system are needed. This may simply be a reference to the distribution system that transfers heat from the solar panels to the water heating system. It may be an instance of Equipment Properties.
Diagram
Diagram
Type xs:string
Properties
content simple
minOccurs 0
maxOccurs 1
Source
<xs:element name="HeatingMethod" type="xs:string" minOccurs="0" maxOccurs="1">
  <xs:annotation>
    <xs:documentation>Describe here what method is used to heat the water. Examples: Electric Resistance Fuel - Condensing Fuel - Non-Condensing Heat Pump – Air Source Heat Pump – Water Source Hybrid Heat Exchanger Solar Note, that some of the examples above require additional objects to be defined. For example: - If the heating type is Heat Exchanger, a reference to a distribution system that is the heat source is needed. - If solar, then additional details regarding the solar heating system are needed. This may simply be a reference to the distribution system that transfers heat from the solar panels to the water heating system. It may be an instance of Equipment Properties.</xs:documentation>
  </xs:annotation>
</xs:element>
Element WaterHeatingSystemType / TankVolume
Namespace No namespace
Annotations
This element indicates the volume of water that the tank associated with the water-heating system can hold. If there is no tank, then this should have the value zero. Water heating systems wtih zero volume (no) tanks are commonly referred to as:
- tankless
- direct 
- instantaneous
- boiler (typical in a large facility; used for space heating)

Note that a hot water tank is not necessarily and does not have to be integrated with the water heating equipment. The water heater and the storage tank may be separate entities.
Diagram
Diagram
Type VolumeType
Properties
content simple
minOccurs 0
maxOccurs 1
Source
<xs:element name="TankVolume" type="VolumeType" minOccurs="0" maxOccurs="1">
  <xs:annotation>
    <xs:documentation>This element indicates the volume of water that the tank associated with the water-heating system can hold. If there is no tank, then this should have the value zero. Water heating systems wtih zero volume (no) tanks are commonly referred to as: - tankless - direct - instantaneous - boiler (typical in a large facility; used for space heating) Note that a hot water tank is not necessarily and does not have to be integrated with the water heating equipment. The water heater and the storage tank may be separate entities.</xs:documentation>
  </xs:annotation>
</xs:element>
Element WaterHeatingSystemType / TankInsulation
Namespace No namespace
Diagram
Diagram
Type InsulationType
Properties
content simple
minOccurs 0
Source
<xs:element minOccurs="0" name="TankInsulation" type="InsulationType"/>
Element WaterHeatingSystemType / RefDistributionSystemHeatSource
Namespace No namespace
Annotations
This is an optional reference to the distribution system, which is the source of heat.

This is particularly relevant if the heating method is a heat exchanger. For example, a facility may use hot water at multiple temperatures. One boiler may heat water to 180 degF to use for space heating. A heat exchanger may be used to extract heat from the 180degF water loop and heat another water loop to only 120 degF to be used as domestic hot water.

Another use case is when multiple water heaters are used in series. The first heaters may heat water to 130 degF for one purpose, such as domestic hot water. Another heater may boost the water to a higher temperature for another use such as laundry or dish washing.

Multiple hot water loops are often advantageous when the end uses are very far apart. The less distance that the hotter water has to travel, the less heat that will lost through the piping into the environment. It is then advantageous to boost the water temperature nearby the end use.
Diagram
Diagram
Type xs:IDREF
Properties
content simple
minOccurs 0
maxOccurs 1
Source
<xs:element maxOccurs="1" minOccurs="0" name="RefDistributionSystemHeatSource" type="xs:IDREF">
  <xs:annotation>
    <xs:documentation>This is an optional reference to the distribution system, which is the source of heat. This is particularly relevant if the heating method is a heat exchanger. For example, a facility may use hot water at multiple temperatures. One boiler may heat water to 180 degF to use for space heating. A heat exchanger may be used to extract heat from the 180degF water loop and heat another water loop to only 120 degF to be used as domestic hot water. Another use case is when multiple water heaters are used in series. The first heaters may heat water to 130 degF for one purpose, such as domestic hot water. Another heater may boost the water to a higher temperature for another use such as laundry or dish washing. Multiple hot water loops are often advantageous when the end uses are very far apart. The less distance that the hotter water has to travel, the less heat that will lost through the piping into the environment. It is then advantageous to boost the water temperature nearby the end use.</xs:documentation>
  </xs:annotation>
</xs:element>
Element WaterHeatingSystemType / SystemProperties
Namespace No namespace
Diagram
Diagram
Type CommonSystemPropertiesType
Properties
content simple
minOccurs 0
maxOccurs 1
Source
<xs:element name="SystemProperties" type="CommonSystemPropertiesType" minOccurs="0" maxOccurs="1"/>
Element WaterHeatingSystemType / WaterHeatingEquipmentDefinition
Namespace No namespace
Diagram
Diagram
Type EquipmentDefinitionType
Properties
content simple
minOccurs 0
maxOccurs unbounded
Source
<xs:element maxOccurs="unbounded" minOccurs="0" name="WaterHeatingEquipmentDefinition" type="EquipmentDefinitionType"/>
Element WaterHeatingSystemType / WaterHeatingEquipment
Namespace No namespace
Annotations
User may define any number of components of the system. 

Solar Water Heater:
If the water-heating system is the solar type, it may be useful to describe the properties of the solar system with an instance of this object.
Diagram
Diagram
Type EquipmentInstanceType
Properties
content simple
minOccurs 0
maxOccurs unbounded
nillable false
Source
<xs:element maxOccurs="unbounded" minOccurs="0" name="WaterHeatingEquipment" nillable="false" type="EquipmentInstanceType">
  <xs:annotation>
    <xs:documentation>User may define any number of components of the system. Solar Water Heater: If the water-heating system is the solar type, it may be useful to describe the properties of the solar system with an instance of this object.</xs:documentation>
  </xs:annotation>
</xs:element>
Element WaterHeatingSystemType / RefDeliverySystem
Namespace No namespace
Annotations
This is an optional reference to the distribution system that is used to deliver/transport the heated water to end uses.
Diagram
Diagram
Type xs:IDREF
Properties
content simple
minOccurs 0
maxOccurs 1
Source
<xs:element maxOccurs="1" minOccurs="0" name="RefDeliverySystem" type="xs:IDREF">
  <xs:annotation>
    <xs:documentation>This is an optional reference to the distribution system that is used to deliver/transport the heated water to end uses.</xs:documentation>
  </xs:annotation>
</xs:element>
Element WaterHeatingSystemType / WaterHeatingCapacity
Namespace No namespace
Annotations
The heating capacity of the system in terms of water flow rate and water temperature rise across the system. Several are allowed because it is not uncommon for manufacturers to specify the temperature rise at various flow rates.
Diagram
Diagram WaterHeatingSystem_xsd.tmp#WaterHeatingCapacityType_RatedTemperatureRise WaterHeatingSystem_xsd.tmp#WaterHeatingCapacityType_RatedFlowRate WaterHeatingSystem_xsd.tmp#WaterHeatingCapacityType
Type WaterHeatingCapacityType
Properties
content complex
minOccurs 0
maxOccurs unbounded
Model
Children RatedFlowRate, RatedTemperatureRise
Instance
<WaterHeatingCapacity>
  <RatedTemperatureRise>{1,1}</RatedTemperatureRise>
  <RatedFlowRate>{1,1}</RatedFlowRate>
</WaterHeatingCapacity>
Source
<xs:element name="WaterHeatingCapacity" type="WaterHeatingCapacityType" minOccurs="0" maxOccurs="unbounded">
  <xs:annotation>
    <xs:documentation>The heating capacity of the system in terms of water flow rate and water temperature rise across the system. Several are allowed because it is not uncommon for manufacturers to specify the temperature rise at various flow rates.</xs:documentation>
  </xs:annotation>
</xs:element>
Element WaterHeatingCapacityType / RatedTemperatureRise
Namespace No namespace
Annotations
The change in temperature of the water between the inlet and outlet of the water heating system when it is operating at full load (maximum heat output or firing rate).

This Rated Temperature Rise corresponds to the Rated Flow Rate.
Diagram
Diagram
Type TemperatureType
Properties
content simple
minOccurs 1
maxOccurs 1
Source
<xs:element name="RatedTemperatureRise" type="TemperatureType" minOccurs="1" maxOccurs="1">
  <xs:annotation>
    <xs:documentation>The change in temperature of the water between the inlet and outlet of the water heating system when it is operating at full load (maximum heat output or firing rate). This Rated Temperature Rise corresponds to the Rated Flow Rate.</xs:documentation>
  </xs:annotation>
</xs:element>
Element WaterHeatingCapacityType / RatedFlowRate
Namespace No namespace
Annotations
The flow rate through the water heating system that corresponds to the Rated Temperature Rise when the system is operating at full load (maximum heat output or firing rate).
Diagram
Diagram
Type FlowType
Properties
content simple
minOccurs 1
maxOccurs 1
Source
<xs:element name="RatedFlowRate" type="FlowType" minOccurs="1" maxOccurs="1">
  <xs:annotation>
    <xs:documentation>The flow rate through the water heating system that corresponds to the Rated Temperature Rise when the system is operating at full load (maximum heat output or firing rate).</xs:documentation>
  </xs:annotation>
</xs:element>
Element WaterHeatingSystemType / Quantity
Namespace No namespace
Annotations
The quantity of this system that exists.
Diagram
Diagram
Type restriction of xs:int
Properties
content simple
minOccurs 0
maxOccurs 1
Facets
minInclusive 0
Source
<xs:element name="Quantity" minOccurs="0" maxOccurs="1">
  <xs:annotation>
    <xs:documentation>The quantity of this system that exists.</xs:documentation>
  </xs:annotation>
  <xs:simpleType>
    <xs:restriction base="xs:int">
      <xs:minInclusive value="0"/>
    </xs:restriction>
  </xs:simpleType>
</xs:element>
Element WaterHeatingSystemType / SetpointSchedule
Namespace No namespace
Annotations
The temperature setpoint schedule. This may be constant.
Diagram
Diagram
Type xs:IDREF
Properties
content simple
minOccurs 0
maxOccurs 1
Source
<xs:element name="SetpointSchedule" type="xs:IDREF" minOccurs="0" maxOccurs="1">
  <xs:annotation>
    <xs:documentation>The temperature setpoint schedule. This may be constant.</xs:documentation>
  </xs:annotation>
</xs:element>
Element WaterHeatingSystem
Namespace http://www.iepmodel.net
Annotations
This system describes the properties of a water heating system. This object contains system properties as well as equipment properties.
Diagram
Diagram WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType_id WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType_Name WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType_Description WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType_Fuel WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType_HeatingMethod WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType_TankVolume WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType_TankInsulation WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType_RefDistributionSystemHeatSource WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType_SystemProperties WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType_WaterHeatingEquipmentDefinition WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType_WaterHeatingEquipment WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType_RefDeliverySystem WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType_WaterHeatingCapacity WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType_Quantity WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType_SetpointSchedule WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType
Type WaterHeatingSystemType
Properties
content complex
Model
Children Description, Fuel, HeatingMethod, Name, Quantity, RefDeliverySystem, RefDistributionSystemHeatSource, SetpointSchedule, SystemProperties, TankInsulation, TankVolume, WaterHeatingCapacity, WaterHeatingEquipment, WaterHeatingEquipmentDefinition
Instance
<WaterHeatingSystem id="" xmlns="http://www.iepmodel.net">
  <Name>{0,1}</Name>
  <Description>{0,1}</Description>
  <Fuel>{0,1}</Fuel>
  <HeatingMethod>{0,1}</HeatingMethod>
  <TankVolume>{0,1}</TankVolume>
  <TankInsulation>{0,1}</TankInsulation>
  <RefDistributionSystemHeatSource>{0,1}</RefDistributionSystemHeatSource>
  <SystemProperties>{0,1}</SystemProperties>
  <WaterHeatingEquipmentDefinition>{0,unbounded}</WaterHeatingEquipmentDefinition>
  <WaterHeatingEquipment>{0,unbounded}</WaterHeatingEquipment>
  <RefDeliverySystem>{0,1}</RefDeliverySystem>
  <WaterHeatingCapacity>{0,unbounded}</WaterHeatingCapacity>
  <Quantity>{0,1}</Quantity>
  <SetpointSchedule>{0,1}</SetpointSchedule>
</WaterHeatingSystem>
Attributes
QName Type Use
id xs:ID optional
Source
<xs:element name="WaterHeatingSystem" type="WaterHeatingSystemType">
  <xs:annotation>
    <xs:documentation>This system describes the properties of a water heating system. This object contains system properties as well as equipment properties.</xs:documentation>
  </xs:annotation>
</xs:element>
Complex Type WaterHeatingSystemType
Namespace http://www.iepmodel.net
Annotations
This system describes a generic system used for heating water.  The end use may be HVAC, domestic or another.

Attributes from Title24 WaterHeating
Diagram
Diagram WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType_id WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType_Name WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType_Description WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType_Fuel WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType_HeatingMethod WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType_TankVolume WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType_TankInsulation WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType_RefDistributionSystemHeatSource WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType_SystemProperties WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType_WaterHeatingEquipmentDefinition WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType_WaterHeatingEquipment WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType_RefDeliverySystem WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType_WaterHeatingCapacity WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType_Quantity WaterHeatingSystem_xsd.tmp#WaterHeatingSystemType_SetpointSchedule
Used by
Model
Children Description, Fuel, HeatingMethod, Name, Quantity, RefDeliverySystem, RefDistributionSystemHeatSource, SetpointSchedule, SystemProperties, TankInsulation, TankVolume, WaterHeatingCapacity, WaterHeatingEquipment, WaterHeatingEquipmentDefinition
Attributes
QName Type Use
id xs:ID optional
Source
<xs:complexType name="WaterHeatingSystemType">
  <xs:annotation>
    <xs:documentation>This system describes a generic system used for heating water. The end use may be HVAC, domestic or another. Attributes from Title24 WaterHeating</xs:documentation>
  </xs:annotation>
  <xs:sequence>
    <xs:element name="Name" type="xs:string" minOccurs="0" maxOccurs="1">
      <xs:annotation>
        <xs:documentation>This is simply a descriptive name, typically a common name used for the system.</xs:documentation>
      </xs:annotation>
    </xs:element>
    <xs:element name="Description" type="xs:string" minOccurs="0" maxOccurs="1">
      <xs:annotation>
        <xs:documentation>Place for user to include additional notes/description of the system.</xs:documentation>
      </xs:annotation>
    </xs:element>
    <xs:element minOccurs="0" name="Fuel" type="EnergyClassEnumType"/>
    <xs:element name="HeatingMethod" type="xs:string" minOccurs="0" maxOccurs="1">
      <xs:annotation>
        <xs:documentation>Describe here what method is used to heat the water. Examples: Electric Resistance Fuel - Condensing Fuel - Non-Condensing Heat Pump – Air Source Heat Pump – Water Source Hybrid Heat Exchanger Solar Note, that some of the examples above require additional objects to be defined. For example: - If the heating type is Heat Exchanger, a reference to a distribution system that is the heat source is needed. - If solar, then additional details regarding the solar heating system are needed. This may simply be a reference to the distribution system that transfers heat from the solar panels to the water heating system. It may be an instance of Equipment Properties.</xs:documentation>
      </xs:annotation>
    </xs:element>
    <xs:element name="TankVolume" type="VolumeType" minOccurs="0" maxOccurs="1">
      <xs:annotation>
        <xs:documentation>This element indicates the volume of water that the tank associated with the water-heating system can hold. If there is no tank, then this should have the value zero. Water heating systems wtih zero volume (no) tanks are commonly referred to as: - tankless - direct - instantaneous - boiler (typical in a large facility; used for space heating) Note that a hot water tank is not necessarily and does not have to be integrated with the water heating equipment. The water heater and the storage tank may be separate entities.</xs:documentation>
      </xs:annotation>
    </xs:element>
    <xs:element minOccurs="0" name="TankInsulation" type="InsulationType"/>
    <xs:element maxOccurs="1" minOccurs="0" name="RefDistributionSystemHeatSource" type="xs:IDREF">
      <xs:annotation>
        <xs:documentation>This is an optional reference to the distribution system, which is the source of heat. This is particularly relevant if the heating method is a heat exchanger. For example, a facility may use hot water at multiple temperatures. One boiler may heat water to 180 degF to use for space heating. A heat exchanger may be used to extract heat from the 180degF water loop and heat another water loop to only 120 degF to be used as domestic hot water. Another use case is when multiple water heaters are used in series. The first heaters may heat water to 130 degF for one purpose, such as domestic hot water. Another heater may boost the water to a higher temperature for another use such as laundry or dish washing. Multiple hot water loops are often advantageous when the end uses are very far apart. The less distance that the hotter water has to travel, the less heat that will lost through the piping into the environment. It is then advantageous to boost the water temperature nearby the end use.</xs:documentation>
      </xs:annotation>
    </xs:element>
    <xs:element name="SystemProperties" type="CommonSystemPropertiesType" minOccurs="0" maxOccurs="1"/>
    <xs:element maxOccurs="unbounded" minOccurs="0" name="WaterHeatingEquipmentDefinition" type="EquipmentDefinitionType"/>
    <xs:element maxOccurs="unbounded" minOccurs="0" name="WaterHeatingEquipment" nillable="false" type="EquipmentInstanceType">
      <xs:annotation>
        <xs:documentation>User may define any number of components of the system. Solar Water Heater: If the water-heating system is the solar type, it may be useful to describe the properties of the solar system with an instance of this object.</xs:documentation>
      </xs:annotation>
    </xs:element>
    <xs:element maxOccurs="1" minOccurs="0" name="RefDeliverySystem" type="xs:IDREF">
      <xs:annotation>
        <xs:documentation>This is an optional reference to the distribution system that is used to deliver/transport the heated water to end uses.</xs:documentation>
      </xs:annotation>
    </xs:element>
    <xs:element name="WaterHeatingCapacity" type="WaterHeatingCapacityType" minOccurs="0" maxOccurs="unbounded">
      <xs:annotation>
        <xs:documentation>The heating capacity of the system in terms of water flow rate and water temperature rise across the system. Several are allowed because it is not uncommon for manufacturers to specify the temperature rise at various flow rates.</xs:documentation>
      </xs:annotation>
    </xs:element>
    <xs:element name="Quantity" minOccurs="0" maxOccurs="1">
      <xs:annotation>
        <xs:documentation>The quantity of this system that exists.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:int">
          <xs:minInclusive value="0"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:element>
    <xs:element name="SetpointSchedule" type="xs:IDREF" minOccurs="0" maxOccurs="1">
      <xs:annotation>
        <xs:documentation>The temperature setpoint schedule. This may be constant.</xs:documentation>
      </xs:annotation>
    </xs:element>
  </xs:sequence>
  <xs:attribute name="id" type="xs:ID" use="optional"/>
</xs:complexType>
Complex Type WaterHeatingCapacityType
Namespace http://www.iepmodel.net
Annotations
This object reflects the water heating capacity of the system in terms of the water flow rate and rise in temperature of water across the system. 

This "capacity" is commonly used with domestic tankless (instantaneous) water heaters.

Systems in the U.S. are often rated in a maximum gpm (flow rate) with a 35 degree Fahrenheit temperature rise. Detailed manufacturer specifications often also list the temperature rise at various flow rates.
Diagram
Diagram WaterHeatingSystem_xsd.tmp#WaterHeatingCapacityType_RatedTemperatureRise WaterHeatingSystem_xsd.tmp#WaterHeatingCapacityType_RatedFlowRate
Used by
Model
Children RatedFlowRate, RatedTemperatureRise
Source
<xs:complexType name="WaterHeatingCapacityType">
  <xs:annotation>
    <xs:documentation>This object reflects the water heating capacity of the system in terms of the water flow rate and rise in temperature of water across the system. This "capacity" is commonly used with domestic tankless (instantaneous) water heaters. Systems in the U.S. are often rated in a maximum gpm (flow rate) with a 35 degree Fahrenheit temperature rise. Detailed manufacturer specifications often also list the temperature rise at various flow rates.</xs:documentation>
  </xs:annotation>
  <xs:sequence minOccurs="0" maxOccurs="1">
    <xs:element name="RatedTemperatureRise" type="TemperatureType" minOccurs="1" maxOccurs="1">
      <xs:annotation>
        <xs:documentation>The change in temperature of the water between the inlet and outlet of the water heating system when it is operating at full load (maximum heat output or firing rate). This Rated Temperature Rise corresponds to the Rated Flow Rate.</xs:documentation>
      </xs:annotation>
    </xs:element>
    <xs:element name="RatedFlowRate" type="FlowType" minOccurs="1" maxOccurs="1">
      <xs:annotation>
        <xs:documentation>The flow rate through the water heating system that corresponds to the Rated Temperature Rise when the system is operating at full load (maximum heat output or firing rate).</xs:documentation>
      </xs:annotation>
    </xs:element>
  </xs:sequence>
</xs:complexType>
Attribute WaterHeatingSystemType / @id
Namespace No namespace
Type xs:ID
Properties
use optional
Used by
Complex Type WaterHeatingSystemType
Source
<xs:attribute name="id" type="xs:ID" use="optional"/>